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Clear EDT on DTTRG. Fixes Cliffhanger and OrionNavattan's Mode 1 demo
author Michael Pavone <pavone@retrodev.com>
date Thu, 05 Sep 2024 23:44:01 -0700
parents d44fe974fb85
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
diff changeset
1 /*
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parents:
diff changeset
2 Copyright 2013-2016 Michael Pavone
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
diff changeset
3 This file is part of BlastEm.
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
diff changeset
4 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text.
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parents:
diff changeset
5 */
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
diff changeset
6 #include "genesis.h"
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
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parents: 1452
diff changeset
7 #include "segacd.h"
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
diff changeset
8 #include "blastem.h"
1414
d94855080529 Move I2C EEPROM and NOR Flash functions out of romdb.c into new files
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parents: 1401
diff changeset
9 #include "nor.h"
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
diff changeset
10 #include <stdlib.h>
1188
448ce87b87fc Fix missing include that prevented building Windows version
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parents: 1184
diff changeset
11 #include <ctype.h>
1204
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
12 #include <time.h>
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1e7977460d18 Add mising include in genesis.c so the Windows build works again
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parents: 1215
diff changeset
13 #include <string.h>
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
diff changeset
14 #include "render.h"
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
diff changeset
15 #include "gst.h"
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
diff changeset
16 #include "util.h"
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
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17 #include "debug.h"
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
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parents: 1108
diff changeset
18 #include "gdb_remote.h"
1478
da1dce39e846 Refactored save slot related logic to reduce duplication and allow reuse in new UI. Get state loading/saving mostly working in new UI
Michael Pavone <pavone@retrodev.com>
parents: 1471
diff changeset
19 #include "saves.h"
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430dd12e4010 Refactor to split device bindings from IO emulation code
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20 #include "bindings.h"
1610
c206a422d466 Added J-Cart support
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diff changeset
21 #include "jcart.h"
1901
5433252329fb Set version reg and TAS behavior based on model config
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22 #include "config.h"
1946
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23 #include "event_log.h"
2083
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
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24 #include "paths.h"
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
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25 #define MCLKS_NTSC 53693175
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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diff changeset
26 #define MCLKS_PAL 53203395
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parents:
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27
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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28 uint32_t MCLKS_PER_68K;
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29 #define MCLKS_PER_YM 7
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30 #define MCLKS_PER_Z80 15
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31 #define MCLKS_PER_PSG (MCLKS_PER_Z80*16)
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f17fe0d00626 Adjust Z80 interrupt pulse duration to match hardware measurements
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32 #define Z80_INT_PULSE_MCLKS 2573 //measured value is ~171.5 Z80 clocks
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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33 #define DEFAULT_SYNC_INTERVAL MCLKS_LINE
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
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34 #define DEFAULT_LOWPASS_CUTOFF 3390
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parents:
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35
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
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36 #define LINES_NTSC 262
1556
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
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parents: 1555
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37 #define LINES_PAL 313
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
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38
1688
395f684c5379 Fixed the most glaring issues in libretro build
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39 #ifdef IS_LIB
1927
9fd4bedc1a31 Update libretro target to use render_audio shared audio code
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40 #define MAX_SOUND_CYCLES (MCLKS_PER_YM*NUM_OPERATORS*6*4)
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395f684c5379 Fixed the most glaring issues in libretro build
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41 #else
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
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42 #define MAX_SOUND_CYCLES 100000
1688
395f684c5379 Fixed the most glaring issues in libretro build
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43 #endif
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
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parents:
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44
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
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45 #ifdef NEW_CORE
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
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46 #define Z80_CYCLE cycles
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
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47 #define Z80_OPTS opts
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48 #define z80_handle_code_write(...)
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49 #else
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50 #define Z80_CYCLE current_cycle
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51 #define Z80_OPTS options
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52 #endif
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53
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54 void genesis_serialize(genesis_context *gen, serialize_buffer *buf, uint32_t m68k_pc, uint8_t all)
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55 {
1946
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56 if (all) {
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57 start_section(buf, SECTION_68000);
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58 m68k_serialize(gen->m68k, m68k_pc, buf);
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59 end_section(buf);
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
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60
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61 if (gen->header.type == SYSTEM_GENESIS) {
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62 start_section(buf, SECTION_Z80);
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63 z80_serialize(gen->z80, buf);
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64 end_section(buf);
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65 }
1946
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66 }
2052
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67
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68 start_section(buf, SECTION_VDP);
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69 vdp_serialize(gen->vdp, buf);
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70 end_section(buf);
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71
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72 if (gen->header.type != SYSTEM_PICO && gen->header.type != SYSTEM_COPERA) {
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73 start_section(buf, SECTION_YM2612);
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74 ym_serialize(gen->ym, buf);
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75 end_section(buf);
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76 }
2052
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77
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78 start_section(buf, SECTION_PSG);
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79 psg_serialize(gen->psg, buf);
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80 end_section(buf);
2052
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parents: 2039
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81
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82 if (all) {
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83 start_section(buf, SECTION_GEN_BUS_ARBITER);
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84 save_int8(buf, gen->z80->reset);
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85 save_int8(buf, gen->z80->busreq);
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86 save_int16(buf, gen->z80_bank_reg);
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87 //I think the refresh logic may technically be part of the VDP, but whatever
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88 save_int32(buf, gen->last_sync_cycle);
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89 save_int32(buf, gen->refresh_counter);
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90 end_section(buf);
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91
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92 if (gen->header.type == SYSTEM_GENESIS) {
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93 start_section(buf, SECTION_SEGA_IO_1);
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94 io_serialize(gen->io.ports, buf);
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95 end_section(buf);
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96
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97 start_section(buf, SECTION_SEGA_IO_2);
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98 io_serialize(gen->io.ports + 1, buf);
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99 end_section(buf);
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100
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101 start_section(buf, SECTION_SEGA_IO_EXT);
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102 io_serialize(gen->io.ports + 2, buf);
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103 end_section(buf);
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104 }
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105
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106 start_section(buf, SECTION_MAIN_RAM);
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107 save_int8(buf, RAM_WORDS * 2 / 1024);
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108 save_buffer16(buf, gen->work_ram, RAM_WORDS);
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109 end_section(buf);
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110
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111 if (gen->header.type == SYSTEM_GENESIS) {
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112 start_section(buf, SECTION_SOUND_RAM);
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113 save_int8(buf, Z80_RAM_BYTES / 1024);
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114 save_buffer8(buf, gen->zram, Z80_RAM_BYTES);
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115 end_section(buf);
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116
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diff changeset
117 if (gen->version_reg & 0xF) {
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diff changeset
118 //only save TMSS info if it's present
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diff changeset
119 //that will allow a state saved on a model lacking TMSS
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diff changeset
120 //to be loaded on a model that has it
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diff changeset
121 start_section(buf, SECTION_TMSS);
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diff changeset
122 save_int8(buf, gen->tmss);
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diff changeset
123 save_buffer16(buf, gen->tmss_lock, 2);
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parents: 2424
diff changeset
124 end_section(buf);
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parents: 2424
diff changeset
125 }
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diff changeset
126 }
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
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parents: 2039
diff changeset
127
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diff changeset
128 cart_serialize(&gen->header, buf);
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diff changeset
129 }
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diff changeset
130 if (gen->expansion) {
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diff changeset
131 segacd_context *cd = gen->expansion;
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diff changeset
132 segacd_serialize(cd, buf, all);
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133 }
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134 }
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diff changeset
135
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136 static uint8_t *serialize(system_header *sys, size_t *size_out)
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diff changeset
137 {
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138 genesis_context *gen = (genesis_context *)sys;
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139 uint32_t address;
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diff changeset
140 #ifndef NEW_CORE
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141 if (gen->m68k->resume_pc) {
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diff changeset
142
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143 gen->header.save_state = SERIALIZE_SLOT+1;
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144 while (!gen->serialize_tmp)
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145 {
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146 gen->m68k->target_cycle = gen->m68k->cycles + 1;
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147 resume_68k(gen->m68k);
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148 }
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diff changeset
149 if (size_out) {
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diff changeset
150 *size_out = gen->serialize_size;
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diff changeset
151 }
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diff changeset
152 uint8_t *ret = gen->serialize_tmp;
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diff changeset
153 gen->serialize_tmp = NULL;
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diff changeset
154 return ret;
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155 } else
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diff changeset
156 #endif
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diff changeset
157 {
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diff changeset
158 serialize_buffer state;
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diff changeset
159 init_serialize(&state);
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diff changeset
160 uint32_t address = read_word(4, (void **)gen->m68k->mem_pointers, &gen->m68k->opts->gen, gen->m68k) << 16;
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diff changeset
161 address |= read_word(6, (void **)gen->m68k->mem_pointers, &gen->m68k->opts->gen, gen->m68k);
1946
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diff changeset
162 genesis_serialize(gen, &state, address, 1);
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diff changeset
163 if (size_out) {
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diff changeset
164 *size_out = state.size;
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diff changeset
165 }
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diff changeset
166 return state.data;
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167 }
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diff changeset
168 }
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diff changeset
169
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diff changeset
170 static void ram_deserialize(deserialize_buffer *buf, void *vgen)
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diff changeset
171 {
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diff changeset
172 genesis_context *gen = vgen;
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diff changeset
173 uint32_t ram_size = load_int8(buf) * 1024 / 2;
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diff changeset
174 if (ram_size > RAM_WORDS) {
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diff changeset
175 fatal_error("State has a RAM size of %d bytes", ram_size * 2);
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diff changeset
176 }
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diff changeset
177 load_buffer16(buf, gen->work_ram, ram_size);
1452
f284ad74afe1 Make initial bank register state stored in bank_regs match what is put in to mem_pointers for the sega/SSF2 mapper. Invalidate RAM code ranges on RAM deserialization
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diff changeset
178 m68k_invalidate_code_range(gen->m68k, 0xE00000, 0x1000000);
1427
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179 }
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diff changeset
180
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diff changeset
181 static void zram_deserialize(deserialize_buffer *buf, void *vgen)
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diff changeset
182 {
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diff changeset
183 genesis_context *gen = vgen;
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diff changeset
184 uint32_t ram_size = load_int8(buf) * 1024;
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diff changeset
185 if (ram_size > Z80_RAM_BYTES) {
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diff changeset
186 fatal_error("State has a Z80 RAM size of %d bytes", ram_size);
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diff changeset
187 }
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diff changeset
188 load_buffer8(buf, gen->zram, ram_size);
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diff changeset
189 z80_invalidate_code_range(gen->z80, 0, 0x4000);
1427
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diff changeset
190 }
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diff changeset
191
1445
349d50930c03 Save and restore Z80 bank register in native save states
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diff changeset
192 static void update_z80_bank_pointer(genesis_context *gen)
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diff changeset
193 {
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
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diff changeset
194 if (gen->z80_bank_reg < 0x140) {
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diff changeset
195 gen->z80->mem_pointers[1] = get_native_pointer(gen->z80_bank_reg << 15, (void **)gen->m68k->mem_pointers, &gen->m68k->opts->gen);
1445
349d50930c03 Save and restore Z80 bank register in native save states
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diff changeset
196 } else {
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diff changeset
197 gen->z80->mem_pointers[1] = NULL;
349d50930c03 Save and restore Z80 bank register in native save states
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diff changeset
198 }
1753
33ec5df77fac Integration of new Z80 core is sort of working now
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diff changeset
199 z80_invalidate_code_range(gen->z80, 0x8000, 0xFFFF);
1445
349d50930c03 Save and restore Z80 bank register in native save states
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diff changeset
200 }
349d50930c03 Save and restore Z80 bank register in native save states
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diff changeset
201
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diff changeset
202 static void bus_arbiter_deserialize(deserialize_buffer *buf, void *vgen)
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parents: 1433
diff changeset
203 {
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parents: 1433
diff changeset
204 genesis_context *gen = vgen;
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diff changeset
205 gen->z80->reset = load_int8(buf);
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parents: 1433
diff changeset
206 gen->z80->busreq = load_int8(buf);
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
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parents: 1690
diff changeset
207 gen->z80_bank_reg = load_int16(buf) & 0x1FF;
2280
9ead0fe69d9b Implement savestate support for Sega CD
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parents: 2278
diff changeset
208 if ((buf->size - buf->cur_pos) >= 2 * sizeof(uint32_t)) {
9ead0fe69d9b Implement savestate support for Sega CD
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diff changeset
209 gen->last_sync_cycle = load_int32(buf);
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diff changeset
210 gen->refresh_counter = load_int32(buf);
9ead0fe69d9b Implement savestate support for Sega CD
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parents: 2278
diff changeset
211 } else {
9ead0fe69d9b Implement savestate support for Sega CD
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diff changeset
212 //save state is from an older version of BlastEm that lacks these fields
9ead0fe69d9b Implement savestate support for Sega CD
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diff changeset
213 //set them to reasonable values
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d74d3998482c Make some progress on compiling full emulator with new 68K core
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diff changeset
214 gen->last_sync_cycle = gen->m68k->cycles;
2280
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diff changeset
215 gen->refresh_counter = 0;
9ead0fe69d9b Implement savestate support for Sega CD
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diff changeset
216 }
1440
7d4483944d4d Allow actually saving a save state in more Z80 states. Save busreq/reset state in bus arbiter section for "native" save states
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diff changeset
217 }
7d4483944d4d Allow actually saving a save state in more Z80 states. Save busreq/reset state in bus arbiter section for "native" save states
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diff changeset
218
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diff changeset
219 static void tmss_deserialize(deserialize_buffer *buf, void *vgen)
3b8e29ef1145 Add TMSS state to save states
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parents: 2037
diff changeset
220 {
3b8e29ef1145 Add TMSS state to save states
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parents: 2037
diff changeset
221 genesis_context *gen = vgen;
3b8e29ef1145 Add TMSS state to save states
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parents: 2037
diff changeset
222 gen->tmss = load_int8(buf);
3b8e29ef1145 Add TMSS state to save states
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parents: 2037
diff changeset
223 load_buffer16(buf, gen->tmss_lock, 2);
3b8e29ef1145 Add TMSS state to save states
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parents: 2037
diff changeset
224 }
3b8e29ef1145 Add TMSS state to save states
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parents: 2037
diff changeset
225
1636
d2775a242dc6 Make sure M68K sync and target cycles are updated after loading a savestate. Fixes an issue in which loading a savestate would result in things being unresponsive until emulation cycle caught up to whatever the pre-state load sync cycle was
Mike Pavone <pavone@retrodev.com>
parents: 1631
diff changeset
226 static void adjust_int_cycle(m68k_context * context, vdp_context * v_context);
2039
3b8e29ef1145 Add TMSS state to save states
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diff changeset
227 static void check_tmss_lock(genesis_context *gen);
3b8e29ef1145 Add TMSS state to save states
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diff changeset
228 static void toggle_tmss_rom(genesis_context *gen);
2500
d44fe974fb85 Get blastem compiling with new 68K core
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diff changeset
229 #ifndef NEW_CORE
2280
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diff changeset
230 #include "m68k_internal.h" //needed for get_native_address_trans, should be eliminated once handling of PC is cleaned up
2500
d44fe974fb85 Get blastem compiling with new 68K core
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diff changeset
231 #endif
1427
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diff changeset
232 void genesis_deserialize(deserialize_buffer *buf, genesis_context *gen)
4e5797b3935a WIP - New savestate format
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parents: 1420
diff changeset
233 {
4e5797b3935a WIP - New savestate format
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parents: 1420
diff changeset
234 register_section_handler(buf, (section_handler){.fun = m68k_deserialize, .data = gen->m68k}, SECTION_68000);
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diff changeset
235 register_section_handler(buf, (section_handler){.fun = vdp_deserialize, .data = gen->vdp}, SECTION_VDP);
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diff changeset
236 register_section_handler(buf, (section_handler){.fun = psg_deserialize, .data = gen->psg}, SECTION_PSG);
1440
7d4483944d4d Allow actually saving a save state in more Z80 states. Save busreq/reset state in bus arbiter section for "native" save states
Michael Pavone <pavone@retrodev.com>
parents: 1433
diff changeset
237 register_section_handler(buf, (section_handler){.fun = bus_arbiter_deserialize, .data = gen}, SECTION_GEN_BUS_ARBITER);
1427
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diff changeset
238 register_section_handler(buf, (section_handler){.fun = ram_deserialize, .data = gen}, SECTION_MAIN_RAM);
1444
14a2834d010c Save/restore mapper state in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1440
diff changeset
239 register_section_handler(buf, (section_handler){.fun = cart_deserialize, .data = gen}, SECTION_MAPPER);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
240 if (gen->header.type == SYSTEM_GENESIS) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
241 register_section_handler(buf, (section_handler){.fun = z80_deserialize, .data = gen->z80}, SECTION_Z80);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
242 register_section_handler(buf, (section_handler){.fun = io_deserialize, .data = gen->io.ports}, SECTION_SEGA_IO_1);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
243 register_section_handler(buf, (section_handler){.fun = io_deserialize, .data = gen->io.ports + 1}, SECTION_SEGA_IO_2);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
244 register_section_handler(buf, (section_handler){.fun = io_deserialize, .data = gen->io.ports + 2}, SECTION_SEGA_IO_EXT);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
245 register_section_handler(buf, (section_handler){.fun = zram_deserialize, .data = gen}, SECTION_SOUND_RAM);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
246 register_section_handler(buf, (section_handler){.fun = tmss_deserialize, .data = gen}, SECTION_TMSS);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
247 }
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
248 if (gen->header.type != SYSTEM_PICO && gen->header.type != SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
249 register_section_handler(buf, (section_handler){.fun = ym_deserialize, .data = gen->ym}, SECTION_YM2612);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
250 }
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
251 if (gen->expansion) {
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
252 segacd_context *cd = gen->expansion;
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
253 segacd_register_section_handlers(cd, buf);
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
254 }
2039
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
255 uint8_t tmss_old = gen->tmss;
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
256 gen->tmss = 0xFF;
1427
4e5797b3935a WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents: 1420
diff changeset
257 while (buf->cur_pos < buf->size)
4e5797b3935a WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents: 1420
diff changeset
258 {
4e5797b3935a WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents: 1420
diff changeset
259 load_section(buf);
4e5797b3935a WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents: 1420
diff changeset
260 }
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
261 if (gen->header.type == SYSTEM_GENESIS && (gen->version_reg & 0xF)) {
2039
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
262 if (gen->tmss == 0xFF) {
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
263 //state lacked a TMSS section, assume that the game ROM is mapped in
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
264 //and that the VDP is unlocked
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
265 gen->tmss_lock[0] = 0x5345;
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
266 gen->tmss_lock[1] = 0x4741;
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
267 gen->tmss = 1;
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
268 }
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
269 if (gen->tmss != tmss_old) {
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
270 toggle_tmss_rom(gen);
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
271 }
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
272 check_tmss_lock(gen);
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
273 }
1445
349d50930c03 Save and restore Z80 bank register in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1444
diff changeset
274 update_z80_bank_pointer(gen);
1636
d2775a242dc6 Make sure M68K sync and target cycles are updated after loading a savestate. Fixes an issue in which loading a savestate would result in things being unresponsive until emulation cycle caught up to whatever the pre-state load sync cycle was
Mike Pavone <pavone@retrodev.com>
parents: 1631
diff changeset
275 adjust_int_cycle(gen->m68k, gen->vdp);
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
276 #ifndef NEW_CORE
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
277 //HACK: Fix this once PC/IR is represented in a better way in 68K core
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
278 //Would be better for this hack to live in side the 68K core itself, but it's better to do it
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
279 //after RAM has been loaded to avoid any unnecessary retranslation
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
280 gen->m68k->resume_pc = get_native_address_trans(gen->m68k, gen->m68k->last_prefetch_address);
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
281 if (gen->expansion) {
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
282 segacd_context *cd = gen->expansion;
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
283 cd->m68k->resume_pc = get_native_address_trans(cd->m68k, cd->m68k->last_prefetch_address);
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
284 }
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
285 #endif
1690
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
286 free(buf->handlers);
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
287 buf->handlers = NULL;
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
288 }
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
289
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
290 static void deserialize(system_header *sys, uint8_t *data, size_t size)
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
291 {
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
292 genesis_context *gen = (genesis_context *)sys;
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
293 deserialize_buffer buffer;
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
294 init_deserialize(&buffer, data, size);
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
295 genesis_deserialize(&buffer, gen);
1427
4e5797b3935a WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents: 1420
diff changeset
296 }
4e5797b3935a WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents: 1420
diff changeset
297
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
298 uint16_t read_dma_value(uint32_t address)
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
299 {
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
300 genesis_context *genesis = (genesis_context *)current_system;
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
301 address *= 2;
1420
975b5b7eaa77 Fix DMA from byte-wide SRAM
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
302 //TODO: Figure out what happens when you try to DMA from weird adresses like IO or banked Z80 area
975b5b7eaa77 Fix DMA from byte-wide SRAM
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
303 if ((address >= 0xA00000 && address < 0xB00000) || (address >= 0xC00000 && address <= 0xE00000)) {
975b5b7eaa77 Fix DMA from byte-wide SRAM
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
304 return 0;
975b5b7eaa77 Fix DMA from byte-wide SRAM
Michael Pavone <pavone@retrodev.com>
parents: 1416
diff changeset
305 }
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
306 if (genesis->expansion) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
307 segacd_context *cd = genesis->expansion;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
308 uint32_t word_ram = cd->base + 0x200000;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
309 uint32_t word_ram_end = cd->base + 0x240000;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
310 if (address >= word_ram && address < word_ram_end) {
2336
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
311 if (!cd->has_vdp_dma_value) {
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
312 #ifdef NEW_CORE
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
313 cd->vdp_dma_value = genesis->m68k->prefetch;
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
314 #else
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
315 cd->vdp_dma_value = read_word(genesis->m68k->last_prefetch_address, (void **)genesis->m68k->mem_pointers, &genesis->m68k->opts->gen, genesis->m68k);
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
316 #endif
2336
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
317 cd->has_vdp_dma_value = 1;
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
318 }
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
319 uint16_t ret = cd->vdp_dma_value;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
320 cd->vdp_dma_value = read_word(address, (void **)genesis->m68k->mem_pointers, &genesis->m68k->opts->gen, genesis->m68k);
2336
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
321 return ret;
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
322 }
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
323 }
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
324
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
325 return read_word(address, (void **)genesis->m68k->mem_pointers, &genesis->m68k->opts->gen, genesis->m68k);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
326 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
327
2336
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
328 void vdp_dma_started(void)
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
329 {
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
330 genesis_context *genesis = (genesis_context *)current_system;
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
331 if (genesis->expansion) {
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
332 segacd_context *cd = genesis->expansion;
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
333 cd->has_vdp_dma_value = 0;
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
334 }
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
335 }
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
336
83f5529086c5 Make bogus word RAM read more appropriately bogus
Michael Pavone <pavone@retrodev.com>
parents: 2335
diff changeset
337
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents: 1116
diff changeset
338 static uint16_t get_open_bus_value(system_header *system)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
339 {
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents: 1116
diff changeset
340 genesis_context *genesis = (genesis_context *)system;
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
341 #ifdef NEW_CORE
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
342 return genesis->m68k->prefetch;
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
343 #else
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
344 return read_dma_value(genesis->m68k->last_prefetch_address/2);
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
345 #endif
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
346 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
347
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
348 static void adjust_int_cycle(m68k_context * context, vdp_context * v_context)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
349 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
350 //static int old_int_cycle = CYCLE_NEVER;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
351 genesis_context *gen = context->system;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
352 if (context->sync_cycle - context->cycles > gen->max_cycles) {
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
353 context->sync_cycle = context->cycles + gen->max_cycles;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
354 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
355 context->int_cycle = CYCLE_NEVER;
2025
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
356 uint8_t mask = context->status & 0x7;
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
357 if (mask < 6) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
358 uint32_t next_vint = vdp_next_vint(v_context);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
359 if (next_vint != CYCLE_NEVER) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
360 context->int_cycle = next_vint;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
361 context->int_num = 6;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
362 }
2025
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
363 if (mask < 4) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
364 uint32_t next_hint = vdp_next_hint(v_context);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
365 if (next_hint != CYCLE_NEVER) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
366 next_hint = next_hint < context->cycles ? context->cycles : next_hint;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
367 if (next_hint < context->int_cycle) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
368 context->int_cycle = next_hint;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
369 context->int_num = 4;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
370
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
371 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
372 }
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
373 if (mask < 2 && (v_context->regs[REG_MODE_3] & BIT_EINT_EN) && gen->header.type == SYSTEM_GENESIS) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
374 uint32_t next_eint_port0 = io_next_interrupt(gen->io.ports, context->cycles);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
375 uint32_t next_eint_port1 = io_next_interrupt(gen->io.ports + 1, context->cycles);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
376 uint32_t next_eint_port2 = io_next_interrupt(gen->io.ports + 2, context->cycles);
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
377 uint32_t next_eint = next_eint_port0 < next_eint_port1
2025
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
378 ? (next_eint_port0 < next_eint_port2 ? next_eint_port0 : next_eint_port2)
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
379 : (next_eint_port1 < next_eint_port2 ? next_eint_port1 : next_eint_port2);
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
380 if (next_eint != CYCLE_NEVER) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
381 next_eint = next_eint < context->cycles ? context->cycles : next_eint;
2025
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
382 if (next_eint < context->int_cycle) {
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
383 context->int_cycle = next_eint;
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
384 context->int_num = 2;
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
385 }
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
386 }
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
387 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
388 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
389 }
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
390 if (context->int_cycle > context->cycles && context->int_pending == INT_PENDING_SR_CHANGE) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
391 context->int_pending = INT_PENDING_NONE;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
392 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
393 /*if (context->int_cycle != old_int_cycle) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
394 printf("int cycle changed to: %d, level: %d @ %d(%d), frame: %d, vcounter: %d, hslot: %d, mask: %d, hint_counter: %d\n", context->int_cycle, context->int_num, v_context->cycles, context->cycles, v_context->frame, v_context->vcounter, v_context->hslot, context->status & 0x7, v_context->hint_counter);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
395 old_int_cycle = context->int_cycle;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
396 }*/
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
397
1304
5b90d7669eee Fix exit trace mode edge case. Call do_sync if trace mode bit is changed in eori sr
Michael Pavone <pavone@retrodev.com>
parents: 1303
diff changeset
398 if (context->status & M68K_STATUS_TRACE || context->trace_pending) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
399 context->target_cycle = context->cycles;
1303
208803173ebc Implemented M68K trace mode. Some edge cases/SR update paths still need work
Michael Pavone <pavone@retrodev.com>
parents: 1291
diff changeset
400 return;
208803173ebc Implemented M68K trace mode. Some edge cases/SR update paths still need work
Michael Pavone <pavone@retrodev.com>
parents: 1291
diff changeset
401 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
402
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
403 context->target_cycle = context->int_cycle < context->sync_cycle ? context->int_cycle : context->sync_cycle;
2424
767ec72acca7 Avoid conflicts between watchpoints and normal debugger entry
Michael Pavone <pavone@retrodev.com>
parents: 2391
diff changeset
404 if (context->should_return || gen->header.enter_debugger || context->wp_hit) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
405 context->target_cycle = context->cycles;
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
406 } else if (context->target_cycle < context->cycles) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
407 //Changes to SR can result in an interrupt cycle that's in the past
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
408 //This can cause issues with the implementation of STOP though
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
409 context->target_cycle = context->cycles;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
410 }
1364
30123ca5856c Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents: 1348
diff changeset
411 if (context->target_cycle == context->int_cycle) {
30123ca5856c Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents: 1348
diff changeset
412 //Currently delays from Z80 access and refresh are applied only when we sync
30123ca5856c Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents: 1348
diff changeset
413 //this can cause extra latency when it comes to interrupts
30123ca5856c Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents: 1348
diff changeset
414 //to prevent this code forces some extra synchronization in the period immediately before an interrupt
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
415 if ((context->target_cycle - context->cycles) > gen->int_latency_prev1) {
1364
30123ca5856c Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents: 1348
diff changeset
416 context->target_cycle = context->sync_cycle = context->int_cycle - gen->int_latency_prev1;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
417 } else if ((context->target_cycle - context->cycles) > gen->int_latency_prev2) {
1364
30123ca5856c Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents: 1348
diff changeset
418 context->target_cycle = context->sync_cycle = context->int_cycle - gen->int_latency_prev2;
30123ca5856c Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents: 1348
diff changeset
419 } else {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
420 context->target_cycle = context->sync_cycle = context->cycles;
1364
30123ca5856c Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents: 1348
diff changeset
421 }
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
422
1364
30123ca5856c Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents: 1348
diff changeset
423 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
424 /*printf("Cyc: %d, Trgt: %d, Int Cyc: %d, Int: %d, Mask: %X, V: %d, H: %d, HICount: %d, HReg: %d, Line: %d\n",
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
425 context->cycles, context->target_cycle, context->int_cycle, context->int_num, (context->status & 0x7),
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
426 v_context->regs[REG_MODE_2] & 0x20, v_context->regs[REG_MODE_1] & 0x10, v_context->hint_counter, v_context->regs[REG_HINT], v_context->cycles / MCLKS_LINE);*/
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
427 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
428
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
429 //#define DO_DEBUG_PRINT
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
430 #ifdef DO_DEBUG_PRINT
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
431 #define dprintf printf
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
432 #define dputs puts
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
433 #else
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
434 #define dprintf
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
435 #define dputs
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
436 #endif
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
437
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents: 1116
diff changeset
438 static void z80_next_int_pulse(z80_context * z_context)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
439 {
1108
87114df913ec Fix Z80 interrupt pulse duration. Fixes inconsistent music playback speed in Sonic 2 introduced in 0.4.1
Michael Pavone <pavone@retrodev.com>
parents: 1105
diff changeset
440 genesis_context * gen = z_context->system;
1753
33ec5df77fac Integration of new Z80 core is sort of working now
Michael Pavone <pavone@retrodev.com>
parents: 1752
diff changeset
441 #ifdef NEW_CORE
33ec5df77fac Integration of new Z80 core is sort of working now
Michael Pavone <pavone@retrodev.com>
parents: 1752
diff changeset
442 z_context->int_cycle = vdp_next_vint_z80(gen->vdp);
33ec5df77fac Integration of new Z80 core is sort of working now
Michael Pavone <pavone@retrodev.com>
parents: 1752
diff changeset
443 z_context->int_end_cycle = z_context->int_cycle + Z80_INT_PULSE_MCLKS;
33ec5df77fac Integration of new Z80 core is sort of working now
Michael Pavone <pavone@retrodev.com>
parents: 1752
diff changeset
444 z_context->int_value = 0xFF;
1766
1dc718581aac Fix Z80 interrupts in Gen/MD mode when using new core. Disable CPU debug log in new Z80 core
Michael Pavone <pavone@retrodev.com>
parents: 1753
diff changeset
445 z80_sync_cycle(z_context, z_context->sync_cycle);
1753
33ec5df77fac Integration of new Z80 core is sort of working now
Michael Pavone <pavone@retrodev.com>
parents: 1752
diff changeset
446 #else
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
447 z_context->int_pulse_start = vdp_next_vint_z80(gen->vdp);
1291
f17fe0d00626 Adjust Z80 interrupt pulse duration to match hardware measurements
Michael Pavone <pavone@retrodev.com>
parents: 1288
diff changeset
448 z_context->int_pulse_end = z_context->int_pulse_start + Z80_INT_PULSE_MCLKS;
1471
2e6320d261ff Implemented Z80 IM 2 and attempted correct intack cycle delay
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
449 z_context->im2_vector = 0xFF;
1753
33ec5df77fac Integration of new Z80 core is sort of working now
Michael Pavone <pavone@retrodev.com>
parents: 1752
diff changeset
450 #endif
1108
87114df913ec Fix Z80 interrupt pulse duration. Fixes inconsistent music playback speed in Sonic 2 introduced in 0.4.1
Michael Pavone <pavone@retrodev.com>
parents: 1105
diff changeset
451 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
452
2184
408fb8a7e990 Implement argumentless variant of z80 debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2179
diff changeset
453 static void sync_z80(genesis_context *gen, uint32_t mclks)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
454 {
2184
408fb8a7e990 Implement argumentless variant of z80 debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2179
diff changeset
455 z80_context *z_context = gen->z80;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
456 #ifndef NO_Z80
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
457 if (z80_enabled) {
1753
33ec5df77fac Integration of new Z80 core is sort of working now
Michael Pavone <pavone@retrodev.com>
parents: 1752
diff changeset
458 #ifdef NEW_CORE
1766
1dc718581aac Fix Z80 interrupts in Gen/MD mode when using new core. Disable CPU debug log in new Z80 core
Michael Pavone <pavone@retrodev.com>
parents: 1753
diff changeset
459 if (z_context->int_cycle == 0xFFFFFFFFU) {
1dc718581aac Fix Z80 interrupts in Gen/MD mode when using new core. Disable CPU debug log in new Z80 core
Michael Pavone <pavone@retrodev.com>
parents: 1753
diff changeset
460 z80_next_int_pulse(z_context);
1dc718581aac Fix Z80 interrupts in Gen/MD mode when using new core. Disable CPU debug log in new Z80 core
Michael Pavone <pavone@retrodev.com>
parents: 1753
diff changeset
461 }
1753
33ec5df77fac Integration of new Z80 core is sort of working now
Michael Pavone <pavone@retrodev.com>
parents: 1752
diff changeset
462 #endif
2184
408fb8a7e990 Implement argumentless variant of z80 debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2179
diff changeset
463 if (gen->enter_z80_debugger && !z_context->reset && !z_context->busack) {
408fb8a7e990 Implement argumentless variant of z80 debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2179
diff changeset
464 while (!z_context->pc) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
465 z80_run(z_context, z_context->Z80_CYCLE + 4);
2184
408fb8a7e990 Implement argumentless variant of z80 debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2179
diff changeset
466 }
408fb8a7e990 Implement argumentless variant of z80 debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2179
diff changeset
467 gen->enter_z80_debugger = 0;
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
468 #ifndef IS_LIB
2184
408fb8a7e990 Implement argumentless variant of z80 debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2179
diff changeset
469 zdebugger(z_context, z_context->pc);
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
470 #endif
2184
408fb8a7e990 Implement argumentless variant of z80 debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2179
diff changeset
471 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
472 z80_run(z_context, mclks);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
473 } else
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
474 #endif
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
475 {
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
476 z_context->Z80_CYCLE = mclks;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
477 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
478 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
479
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
480 static void sync_sound(genesis_context * gen, uint32_t target)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
481 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
482 //printf("YM | Cycle: %d, bpos: %d, PSG | Cycle: %d, bpos: %d\n", gen->ym->current_cycle, gen->ym->buffer_pos, gen->psg->cycles, gen->psg->buffer_pos * 2);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
483 while (target > gen->psg->cycles && target - gen->psg->cycles > MAX_SOUND_CYCLES) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
484 uint32_t cur_target = gen->psg->cycles + MAX_SOUND_CYCLES;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
485 //printf("Running PSG to cycle %d\n", cur_target);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
486 psg_run(gen->psg, cur_target);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
487 //printf("Running YM-2612 to cycle %d\n", cur_target);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
488 ym_run(gen->ym, cur_target);
2080
bafb757e1cd2 Implement CD audio
Michael Pavone <pavone@retrodev.com>
parents: 2054
diff changeset
489 if (gen->expansion) {
bafb757e1cd2 Implement CD audio
Michael Pavone <pavone@retrodev.com>
parents: 2054
diff changeset
490 scd_run(gen->expansion, gen_cycle_to_scd(cur_target, gen));
bafb757e1cd2 Implement CD audio
Michael Pavone <pavone@retrodev.com>
parents: 2054
diff changeset
491 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
492 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
493 psg_run(gen->psg, target);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
494 ym_run(gen->ym, target);
2080
bafb757e1cd2 Implement CD audio
Michael Pavone <pavone@retrodev.com>
parents: 2054
diff changeset
495 if (gen->expansion) {
bafb757e1cd2 Implement CD audio
Michael Pavone <pavone@retrodev.com>
parents: 2054
diff changeset
496 scd_run(gen->expansion, gen_cycle_to_scd(target, gen));
bafb757e1cd2 Implement CD audio
Michael Pavone <pavone@retrodev.com>
parents: 2054
diff changeset
497 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
498
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
499 //printf("Target: %d, YM bufferpos: %d, PSG bufferpos: %d\n", target, gen->ym->buffer_pos, gen->psg->buffer_pos * 2);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
500 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
501
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
502 #define REFRESH_INTERVAL 128
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
503 #define REFRESH_DELAY 2
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
504
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
505 void gen_update_refresh(m68k_context *context)
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
506 {
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
507 uint32_t interval = MCLKS_PER_68K * REFRESH_INTERVAL;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
508 genesis_context *gen = context->system;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
509 gen->refresh_counter += context->cycles - gen->last_sync_cycle;
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
510 gen->last_sync_cycle = context->cycles;
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
511 context->cycles += REFRESH_DELAY * MCLKS_PER_68K * (gen->refresh_counter / interval);
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
512 gen->refresh_counter = gen->refresh_counter % interval;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
513 }
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
514
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
515 void gen_update_refresh_free_access(m68k_context *context)
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
516 {
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
517 genesis_context *gen = context->system;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
518 uint32_t before = context->cycles - 4*MCLKS_PER_68K;
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
519 if (before < gen->last_sync_cycle) {
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
520 return;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
521 }
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
522 //Add refresh delays for any accesses that happened beofre the current one
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
523 gen->refresh_counter += before - gen->last_sync_cycle;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
524 uint32_t interval = MCLKS_PER_68K * REFRESH_INTERVAL;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
525 uint32_t delay = REFRESH_DELAY * MCLKS_PER_68K * (gen->refresh_counter / interval);
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
526 if (delay) {
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
527 //To avoid the extra cycles being absorbed in the refresh free update below, we need to update again
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
528 gen->refresh_counter = gen->refresh_counter % interval;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
529 gen->refresh_counter += delay;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
530 delay += REFRESH_DELAY * MCLKS_PER_68K * (gen->refresh_counter / interval);
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
531 context->cycles += delay;
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
532 }
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
533 gen->last_sync_cycle = context->cycles;
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
534 //advance refresh counter for the current access, but don't generate delays
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
535 gen->refresh_counter += 4*MCLKS_PER_68K;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
536 gen->refresh_counter = gen->refresh_counter % interval;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
537 }
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
538
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
539 void gen_update_refresh_no_wait(m68k_context *context)
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
540 {
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
541 uint32_t interval = MCLKS_PER_68K * REFRESH_INTERVAL;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
542 genesis_context *gen = context->system;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
543 gen->refresh_counter += context->cycles - gen->last_sync_cycle;
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
544 gen->last_sync_cycle = context->cycles;
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
545 gen->refresh_counter = gen->refresh_counter % interval;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
546 }
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
547
1170
9170fc4d9835 Don't adjust cycles every frame. Only when we start getting close to UINT_MAX. Don't adjust all the way down to zero when we do adjust. Shouldn't fix anything, but may make debugging current issues easier.
Michael Pavone <pavone@retrodev.com>
parents: 1165
diff changeset
548 #include <limits.h>
9170fc4d9835 Don't adjust cycles every frame. Only when we start getting close to UINT_MAX. Don't adjust all the way down to zero when we do adjust. Shouldn't fix anything, but may make debugging current issues easier.
Michael Pavone <pavone@retrodev.com>
parents: 1165
diff changeset
549 #define ADJUST_BUFFER (8*MCLKS_LINE*313)
9170fc4d9835 Don't adjust cycles every frame. Only when we start getting close to UINT_MAX. Don't adjust all the way down to zero when we do adjust. Shouldn't fix anything, but may make debugging current issues easier.
Michael Pavone <pavone@retrodev.com>
parents: 1165
diff changeset
550 #define MAX_NO_ADJUST (UINT_MAX-ADJUST_BUFFER)
9170fc4d9835 Don't adjust cycles every frame. Only when we start getting close to UINT_MAX. Don't adjust all the way down to zero when we do adjust. Shouldn't fix anything, but may make debugging current issues easier.
Michael Pavone <pavone@retrodev.com>
parents: 1165
diff changeset
551
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
552 static m68k_context *sync_components(m68k_context * context, uint32_t address)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
553 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
554 genesis_context * gen = context->system;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
555 vdp_context * v_context = gen->vdp;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
556 z80_context * z_context = gen->z80;
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
557 if (gen->bus_busy) {
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
558 gen_update_refresh_no_wait(context);
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
559 } else {
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
560 gen_update_refresh(context);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
561 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
562
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
563 uint32_t mclks = context->cycles;
2184
408fb8a7e990 Implement argumentless variant of z80 debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2179
diff changeset
564 sync_z80(gen, mclks);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
565 sync_sound(gen, mclks);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
566 vdp_run_context(v_context, mclks);
2025
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
567 io_run(gen->io.ports, mclks);
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
568 io_run(gen->io.ports + 1, mclks);
e7a516f08cec Implement serial IO, a generic serial device type and external interrupts
Michael Pavone <pavone@retrodev.com>
parents: 2021
diff changeset
569 io_run(gen->io.ports + 2, mclks);
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
570 if (gen->expansion) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
571 scd_run(gen->expansion, gen_cycle_to_scd(mclks, gen));
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
572 }
1556
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
573 if (mclks >= gen->reset_cycle) {
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
574 gen->reset_requested = 1;
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
575 context->should_return = 1;
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
576 gen->reset_cycle = CYCLE_NEVER;
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
577 }
1971
80920c21bb52 Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
Michael Pavone <pavone@retrodev.com>
parents: 1954
diff changeset
578 if (v_context->frame != gen->last_frame) {
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
579 #ifndef IS_LIB
2243
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
580 if (gen->ym->scope) {
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
581 scope_render(gen->ym->scope);
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
582 }
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
583 #endif
1971
80920c21bb52 Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
Michael Pavone <pavone@retrodev.com>
parents: 1954
diff changeset
584 //printf("reached frame end %d | MCLK Cycles: %d, Target: %d, VDP cycles: %d, vcounter: %d, hslot: %d\n", gen->last_frame, mclks, gen->frame_end, v_context->cycles, v_context->vcounter, v_context->hslot);
2179
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
585 uint32_t elapsed = v_context->frame - gen->last_frame;
1971
80920c21bb52 Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
Michael Pavone <pavone@retrodev.com>
parents: 1954
diff changeset
586 gen->last_frame = v_context->frame;
80920c21bb52 Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
Michael Pavone <pavone@retrodev.com>
parents: 1954
diff changeset
587 event_flush(mclks);
80920c21bb52 Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
Michael Pavone <pavone@retrodev.com>
parents: 1954
diff changeset
588 gen->last_flush_cycle = mclks;
2179
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
589 if (gen->header.enter_debugger_frames) {
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
590 if (elapsed >= gen->header.enter_debugger_frames) {
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
591 gen->header.enter_debugger_frames = 0;
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
592 gen->header.enter_debugger = 1;
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
593 } else {
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
594 gen->header.enter_debugger_frames -= elapsed;
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
595 }
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
596 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
597
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
598 if(exit_after){
2179
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
599 if (elapsed >= exit_after) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
600 exit(0);
2179
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
601 } else {
9a8dd4ba2753 Implement frame advance debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2164
diff changeset
602 exit_after -= elapsed;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
603 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
604 }
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
605 if (context->cycles > MAX_NO_ADJUST) {
1170
9170fc4d9835 Don't adjust cycles every frame. Only when we start getting close to UINT_MAX. Don't adjust all the way down to zero when we do adjust. Shouldn't fix anything, but may make debugging current issues easier.
Michael Pavone <pavone@retrodev.com>
parents: 1165
diff changeset
606 uint32_t deduction = mclks - ADJUST_BUFFER;
9170fc4d9835 Don't adjust cycles every frame. Only when we start getting close to UINT_MAX. Don't adjust all the way down to zero when we do adjust. Shouldn't fix anything, but may make debugging current issues easier.
Michael Pavone <pavone@retrodev.com>
parents: 1165
diff changeset
607 vdp_adjust_cycles(v_context, deduction);
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
608 io_adjust_cycles(gen->io.ports, context->cycles, deduction);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
609 io_adjust_cycles(gen->io.ports+1, context->cycles, deduction);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
610 io_adjust_cycles(gen->io.ports+2, context->cycles, deduction);
1610
c206a422d466 Added J-Cart support
Michael Pavone <pavone@retrodev.com>
parents: 1595
diff changeset
611 if (gen->mapper_type == MAPPER_JCART) {
c206a422d466 Added J-Cart support
Michael Pavone <pavone@retrodev.com>
parents: 1595
diff changeset
612 jcart_adjust_cycles(gen, deduction);
c206a422d466 Added J-Cart support
Michael Pavone <pavone@retrodev.com>
parents: 1595
diff changeset
613 }
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
614 context->cycles -= deduction;
1170
9170fc4d9835 Don't adjust cycles every frame. Only when we start getting close to UINT_MAX. Don't adjust all the way down to zero when we do adjust. Shouldn't fix anything, but may make debugging current issues easier.
Michael Pavone <pavone@retrodev.com>
parents: 1165
diff changeset
615 z80_adjust_cycles(z_context, deduction);
1902
32a3aa7b4a45 Fix YM2612 busy flag timing
Michael Pavone <pavone@retrodev.com>
parents: 1901
diff changeset
616 ym_adjust_cycles(gen->ym, deduction);
1909
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
617 if (gen->ym->vgm) {
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
618 vgm_adjust_cycles(gen->ym->vgm, deduction);
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
619 }
1170
9170fc4d9835 Don't adjust cycles every frame. Only when we start getting close to UINT_MAX. Don't adjust all the way down to zero when we do adjust. Shouldn't fix anything, but may make debugging current issues easier.
Michael Pavone <pavone@retrodev.com>
parents: 1165
diff changeset
620 gen->psg->cycles -= deduction;
1556
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
621 if (gen->reset_cycle != CYCLE_NEVER) {
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
622 gen->reset_cycle -= deduction;
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
623 }
1946
c3c62dbf1ceb WIP netplay support
Michael Pavone <pavone@retrodev.com>
parents: 1932
diff changeset
624 event_cycle_adjust(mclks, deduction);
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
625 if (gen->expansion) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
626 scd_adjust_cycle(gen->expansion, deduction);
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
627 }
1971
80920c21bb52 Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
Michael Pavone <pavone@retrodev.com>
parents: 1954
diff changeset
628 gen->last_flush_cycle -= deduction;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
629 }
1971
80920c21bb52 Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
Michael Pavone <pavone@retrodev.com>
parents: 1954
diff changeset
630 } else if (mclks - gen->last_flush_cycle > gen->soft_flush_cycles) {
80920c21bb52 Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
Michael Pavone <pavone@retrodev.com>
parents: 1954
diff changeset
631 event_soft_flush(mclks);
80920c21bb52 Add an event log soft flush and call it twice per frame in between hard flushes to netplay latency when there are insufficient hardware updates to flush packets in the middle of a frame
Michael Pavone <pavone@retrodev.com>
parents: 1954
diff changeset
632 gen->last_flush_cycle = mclks;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
633 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
634 gen->frame_end = vdp_cycles_to_frame_end(v_context);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
635 context->sync_cycle = gen->frame_end;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
636 //printf("Set sync cycle to: %d @ %d, vcounter: %d, hslot: %d\n", context->sync_cycle, context->cycles, v_context->vcounter, v_context->hslot);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
637 if (!address && (gen->header.enter_debugger || gen->header.save_state)) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
638 context->sync_cycle = context->cycles + 1;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
639 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
640 adjust_int_cycle(context, v_context);
1556
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
641 if (gen->reset_cycle < context->target_cycle) {
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
642 context->target_cycle = gen->reset_cycle;
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
643 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
644 if (address) {
2424
767ec72acca7 Avoid conflicts between watchpoints and normal debugger entry
Michael Pavone <pavone@retrodev.com>
parents: 2391
diff changeset
645 if (gen->header.enter_debugger || context->wp_hit) {
767ec72acca7 Avoid conflicts between watchpoints and normal debugger entry
Michael Pavone <pavone@retrodev.com>
parents: 2391
diff changeset
646 if (!context->wp_hit) {
767ec72acca7 Avoid conflicts between watchpoints and normal debugger entry
Michael Pavone <pavone@retrodev.com>
parents: 2391
diff changeset
647 gen->header.enter_debugger = 0;
767ec72acca7 Avoid conflicts between watchpoints and normal debugger entry
Michael Pavone <pavone@retrodev.com>
parents: 2391
diff changeset
648 }
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
649 #ifndef IS_LIB
2033
894bf99a13f1 Make ui.enter_debuger respect which debuger is active
Michael Pavone <pavone@retrodev.com>
parents: 2025
diff changeset
650 if (gen->header.debugger_type == DEBUGGER_NATIVE) {
894bf99a13f1 Make ui.enter_debuger respect which debuger is active
Michael Pavone <pavone@retrodev.com>
parents: 2025
diff changeset
651 debugger(context, address);
894bf99a13f1 Make ui.enter_debuger respect which debuger is active
Michael Pavone <pavone@retrodev.com>
parents: 2025
diff changeset
652 } else {
894bf99a13f1 Make ui.enter_debuger respect which debuger is active
Michael Pavone <pavone@retrodev.com>
parents: 2025
diff changeset
653 gdb_debug_enter(context, address);
894bf99a13f1 Make ui.enter_debuger respect which debuger is active
Michael Pavone <pavone@retrodev.com>
parents: 2025
diff changeset
654 }
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
655 #endif
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
656 }
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
657 #ifdef NEW_CORE
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
658 if (gen->header.save_state) {
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
659 #else
1440
7d4483944d4d Allow actually saving a save state in more Z80 states. Save busreq/reset state in bus arbiter section for "native" save states
Michael Pavone <pavone@retrodev.com>
parents: 1433
diff changeset
660 if (gen->header.save_state && (z_context->pc || !z_context->native_pc || z_context->reset || !z_context->busreq)) {
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
661 #endif
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
662 uint8_t slot = gen->header.save_state - 1;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
663 gen->header.save_state = 0;
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
664 #ifndef NEW_CORE
1440
7d4483944d4d Allow actually saving a save state in more Z80 states. Save busreq/reset state in bus arbiter section for "native" save states
Michael Pavone <pavone@retrodev.com>
parents: 1433
diff changeset
665 if (z_context->native_pc && !z_context->reset) {
7d4483944d4d Allow actually saving a save state in more Z80 states. Save busreq/reset state in bus arbiter section for "native" save states
Michael Pavone <pavone@retrodev.com>
parents: 1433
diff changeset
666 //advance Z80 core to the start of an instruction
7d4483944d4d Allow actually saving a save state in more Z80 states. Save busreq/reset state in bus arbiter section for "native" save states
Michael Pavone <pavone@retrodev.com>
parents: 1433
diff changeset
667 while (!z_context->pc)
7d4483944d4d Allow actually saving a save state in more Z80 states. Save busreq/reset state in bus arbiter section for "native" save states
Michael Pavone <pavone@retrodev.com>
parents: 1433
diff changeset
668 {
2184
408fb8a7e990 Implement argumentless variant of z80 debugger command
Michael Pavone <pavone@retrodev.com>
parents: 2179
diff changeset
669 sync_z80(gen, z_context->current_cycle + MCLKS_PER_Z80);
1440
7d4483944d4d Allow actually saving a save state in more Z80 states. Save busreq/reset state in bus arbiter section for "native" save states
Michael Pavone <pavone@retrodev.com>
parents: 1433
diff changeset
670 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
671 }
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
672 #endif
1946
c3c62dbf1ceb WIP netplay support
Michael Pavone <pavone@retrodev.com>
parents: 1932
diff changeset
673 char *save_path = slot >= SERIALIZE_SLOT ? NULL : get_slot_name(&gen->header, slot, use_native_states ? "state" : "gst");
c3c62dbf1ceb WIP netplay support
Michael Pavone <pavone@retrodev.com>
parents: 1932
diff changeset
674 if (use_native_states || slot >= SERIALIZE_SLOT) {
1428
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
675 serialize_buffer state;
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
676 init_serialize(&state);
1946
c3c62dbf1ceb WIP netplay support
Michael Pavone <pavone@retrodev.com>
parents: 1932
diff changeset
677 genesis_serialize(gen, &state, address, slot != EVENTLOG_SLOT);
1690
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
678 if (slot == SERIALIZE_SLOT) {
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
679 gen->serialize_tmp = state.data;
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
680 gen->serialize_size = state.size;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
681 context->sync_cycle = context->cycles;
1690
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
682 context->should_return = 1;
1946
c3c62dbf1ceb WIP netplay support
Michael Pavone <pavone@retrodev.com>
parents: 1932
diff changeset
683 } else if (slot == EVENTLOG_SLOT) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
684 event_state(context->cycles, &state);
1690
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
685 } else {
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
686 save_to_file(&state, save_path);
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
687 free(state.data);
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
688 }
1428
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
689 } else {
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
690 save_gst(gen, save_path, address);
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
691 }
1849
6b5147f08846 Don't print out a message when saving a state to the serialization pseudo-slot
Michael Pavone <pavone@retrodev.com>
parents: 1848
diff changeset
692 if (slot != SERIALIZE_SLOT) {
6b5147f08846 Don't print out a message when saving a state to the serialization pseudo-slot
Michael Pavone <pavone@retrodev.com>
parents: 1848
diff changeset
693 debug_message("Saved state to %s\n", save_path);
6b5147f08846 Don't print out a message when saving a state to the serialization pseudo-slot
Michael Pavone <pavone@retrodev.com>
parents: 1848
diff changeset
694 }
1478
da1dce39e846 Refactored save slot related logic to reduce duplication and allow reuse in new UI. Get state loading/saving mostly working in new UI
Michael Pavone <pavone@retrodev.com>
parents: 1471
diff changeset
695 free(save_path);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
696 } else if(gen->header.save_state) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
697 context->sync_cycle = context->cycles + 1;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
698 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
699 }
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
700 return context;
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
701 }
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
702
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
703 static void sync_sound_pico(genesis_context * gen, uint32_t target)
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
704 {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
705 while (target > gen->psg->cycles && target - gen->psg->cycles > MAX_SOUND_CYCLES)
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
706 {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
707 uint32_t cur_target = gen->psg->cycles + MAX_SOUND_CYCLES;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
708 psg_run(gen->psg, cur_target);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
709 pico_pcm_run(gen->adpcm, cur_target);
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
710 if (gen->ymz) {
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
711 ymz263b_run(gen->ymz, cur_target);
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
712 }
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
713 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
714 psg_run(gen->psg, target);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
715 pico_pcm_run(gen->adpcm, target);
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
716 if (gen->ymz) {
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
717 ymz263b_run(gen->ymz, target);
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
718 }
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
719 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
720
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
721 static void adjust_int_cycle_pico(m68k_context *context, vdp_context *v_context)
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
722 {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
723 genesis_context *gen = context->system;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
724 if (context->sync_cycle - context->cycles > gen->max_cycles) {
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
725 context->sync_cycle = context->cycles + gen->max_cycles;
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
726 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
727 context->int_cycle = CYCLE_NEVER;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
728 uint8_t mask = context->status & 0x7;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
729 if (mask < 6) {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
730 uint32_t next_vint = vdp_next_vint(v_context);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
731 if (next_vint != CYCLE_NEVER) {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
732 context->int_cycle = next_vint;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
733 context->int_num = 6;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
734 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
735 if (mask < 5) {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
736 uint32_t next_hint = vdp_next_hint(v_context);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
737 if (next_hint != CYCLE_NEVER) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
738 next_hint = next_hint < context->cycles ? context->cycles : next_hint;
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
739 if (next_hint < context->int_cycle) {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
740 context->int_cycle = next_hint;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
741 context->int_num = 5;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
742
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
743 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
744 }
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
745 if (mask < 4) {
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
746 if (v_context->regs[REG_MODE_3] & BIT_EINT_EN) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
747 uint32_t next_eint_port0 = io_next_interrupt(gen->io.ports, context->cycles);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
748 uint32_t next_eint_port1 = io_next_interrupt(gen->io.ports + 1, context->cycles);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
749 uint32_t next_eint_port2 = io_next_interrupt(gen->io.ports + 2, context->cycles);
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
750 uint32_t next_eint = next_eint_port0 < next_eint_port1
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
751 ? (next_eint_port0 < next_eint_port2 ? next_eint_port0 : next_eint_port2)
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
752 : (next_eint_port1 < next_eint_port2 ? next_eint_port1 : next_eint_port2);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
753 if (next_eint != CYCLE_NEVER) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
754 next_eint = next_eint < context->cycles ? context->cycles : next_eint;
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
755 if (next_eint < context->int_cycle) {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
756 context->int_cycle = next_eint;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
757 context->int_num = 2;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
758 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
759 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
760 }
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
761 if (mask < 3) {
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
762 uint32_t next_pcm_int = pico_pcm_next_int(gen->adpcm);
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
763 if (next_pcm_int != CYCLE_NEVER && next_pcm_int < context->int_cycle) {
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
764 context->int_cycle = next_pcm_int;
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
765 context->int_num = 3;
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
766 }
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
767
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
768 if (mask < 2 && gen->ymz) {
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
769 uint32_t ymz_int = ymz263b_next_int(gen->ymz);
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
770 if (ymz_int < context->int_cycle) {
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
771 context->int_cycle = ymz_int;
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
772 context->int_num = 2;
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
773 }
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
774 }
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
775 }
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
776 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
777 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
778 }
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
779 if (context->int_cycle > context->cycles && context->int_pending == INT_PENDING_SR_CHANGE) {
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
780 context->int_pending = INT_PENDING_NONE;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
781 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
782 /*if (context->int_cycle != old_int_cycle) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
783 printf("int cycle changed to: %d, level: %d @ %d(%d), frame: %d, vcounter: %d, hslot: %d, mask: %d, hint_counter: %d\n", context->int_cycle, context->int_num, v_context->cycles, context->cycles, v_context->frame, v_context->vcounter, v_context->hslot, context->status & 0x7, v_context->hint_counter);
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
784 old_int_cycle = context->int_cycle;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
785 }*/
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
786
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
787 if (context->status & M68K_STATUS_TRACE || context->trace_pending) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
788 context->target_cycle = context->cycles;
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
789 return;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
790 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
791
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
792 context->target_cycle = context->int_cycle < context->sync_cycle ? context->int_cycle : context->sync_cycle;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
793 if (context->should_return || gen->header.enter_debugger || context->wp_hit) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
794 context->target_cycle = context->cycles;
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
795 } else if (context->target_cycle < context->cycles) {
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
796 //Changes to SR can result in an interrupt cycle that's in the past
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
797 //This can cause issues with the implementation of STOP though
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
798 context->target_cycle = context->cycles;
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
799 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
800 if (context->target_cycle == context->int_cycle) {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
801 //Currently delays from Z80 access and refresh are applied only when we sync
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
802 //this can cause extra latency when it comes to interrupts
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
803 //to prevent this code forces some extra synchronization in the period immediately before an interrupt
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
804 if ((context->target_cycle - context->cycles) > gen->int_latency_prev1) {
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
805 context->target_cycle = context->sync_cycle = context->int_cycle - gen->int_latency_prev1;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
806 } else if ((context->target_cycle - context->cycles) > gen->int_latency_prev2) {
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
807 context->target_cycle = context->sync_cycle = context->int_cycle - gen->int_latency_prev2;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
808 } else {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
809 context->target_cycle = context->sync_cycle = context->cycles;
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
810 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
811
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
812 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
813 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
814
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
815 static m68k_context* sync_components_pico(m68k_context * context, uint32_t address)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
816 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
817 genesis_context * gen = context->system;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
818 vdp_context * v_context = gen->vdp;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
819 if (gen->bus_busy) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
820 gen_update_refresh_no_wait(context);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
821 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
822 gen_update_refresh(context);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
823 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
824
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
825 uint32_t mclks = context->cycles;
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
826 sync_sound_pico(gen, mclks);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
827 vdp_run_context(v_context, mclks);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
828 if (mclks >= gen->reset_cycle) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
829 gen->reset_requested = 1;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
830 context->should_return = 1;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
831 gen->reset_cycle = CYCLE_NEVER;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
832 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
833 if (v_context->frame != gen->last_frame) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
834 #ifndef IS_LIB
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
835 if (gen->psg->scope) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
836 scope_render(gen->psg->scope);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
837 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
838 #endif
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
839 //printf("reached frame end %d | MCLK Cycles: %d, Target: %d, VDP cycles: %d, vcounter: %d, hslot: %d\n", gen->last_frame, mclks, gen->frame_end, v_context->cycles, v_context->vcounter, v_context->hslot);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
840 uint32_t elapsed = v_context->frame - gen->last_frame;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
841 gen->last_frame = v_context->frame;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
842 event_flush(mclks);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
843 gen->last_flush_cycle = mclks;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
844 if (gen->header.enter_debugger_frames) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
845 if (elapsed >= gen->header.enter_debugger_frames) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
846 gen->header.enter_debugger_frames = 0;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
847 gen->header.enter_debugger = 1;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
848 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
849 gen->header.enter_debugger_frames -= elapsed;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
850 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
851 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
852
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
853 if(exit_after){
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
854 if (elapsed >= exit_after) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
855 exit(0);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
856 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
857 exit_after -= elapsed;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
858 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
859 }
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
860 if (context->cycles > MAX_NO_ADJUST) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
861 uint32_t deduction = mclks - ADJUST_BUFFER;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
862 vdp_adjust_cycles(v_context, deduction);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
863 if (gen->mapper_type == MAPPER_JCART) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
864 jcart_adjust_cycles(gen, deduction);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
865 }
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
866 context->cycles -= deduction;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
867 if (gen->psg->vgm) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
868 vgm_adjust_cycles(gen->psg->vgm, deduction);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
869 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
870 gen->psg->cycles -= deduction;
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
871 gen->adpcm->cycle -= deduction;
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
872 if (gen->ymz) {
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
873 gen->ymz->cycle -= deduction;
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
874 }
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
875 if (gen->reset_cycle != CYCLE_NEVER) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
876 gen->reset_cycle -= deduction;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
877 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
878 event_cycle_adjust(mclks, deduction);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
879 if (gen->expansion) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
880 scd_adjust_cycle(gen->expansion, deduction);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
881 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
882 gen->last_flush_cycle -= deduction;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
883 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
884 } else if (mclks - gen->last_flush_cycle > gen->soft_flush_cycles) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
885 event_soft_flush(mclks);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
886 gen->last_flush_cycle = mclks;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
887 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
888 gen->frame_end = vdp_cycles_to_frame_end(v_context);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
889 context->sync_cycle = gen->frame_end;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
890 //printf("Set sync cycle to: %d @ %d, vcounter: %d, hslot: %d\n", context->sync_cycle, context->cycles, v_context->vcounter, v_context->hslot);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
891 if (!address && (gen->header.enter_debugger || gen->header.save_state)) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
892 context->sync_cycle = context->cycles + 1;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
893 }
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
894 adjust_int_cycle_pico(context, v_context);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
895 if (gen->reset_cycle < context->target_cycle) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
896 context->target_cycle = gen->reset_cycle;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
897 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
898 if (address) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
899 if (gen->header.enter_debugger || context->wp_hit) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
900 if (!context->wp_hit) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
901 gen->header.enter_debugger = 0;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
902 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
903 #ifndef IS_LIB
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
904 if (gen->header.debugger_type == DEBUGGER_NATIVE) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
905 debugger(context, address);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
906 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
907 gdb_debug_enter(context, address);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
908 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
909 #endif
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
910 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
911 if (gen->header.save_state) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
912 uint8_t slot = gen->header.save_state - 1;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
913 gen->header.save_state = 0;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
914 char *save_path = slot >= SERIALIZE_SLOT ? NULL : get_slot_name(&gen->header, slot, use_native_states ? "state" : "gst");
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
915 if (use_native_states || slot >= SERIALIZE_SLOT) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
916 serialize_buffer state;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
917 init_serialize(&state);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
918 genesis_serialize(gen, &state, address, slot != EVENTLOG_SLOT);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
919 if (slot == SERIALIZE_SLOT) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
920 gen->serialize_tmp = state.data;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
921 gen->serialize_size = state.size;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
922 context->sync_cycle = context->cycles;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
923 context->should_return = 1;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
924 } else if (slot == EVENTLOG_SLOT) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
925 event_state(context->cycles, &state);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
926 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
927 save_to_file(&state, save_path);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
928 free(state.data);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
929 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
930 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
931 save_gst(gen, save_path, address);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
932 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
933 if (slot != SERIALIZE_SLOT) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
934 debug_message("Saved state to %s\n", save_path);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
935 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
936 free(save_path);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
937 } else if(gen->header.save_state) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
938 context->sync_cycle = context->cycles + 1;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
939 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
940 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
941 return context;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
942 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
943
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
944 static m68k_context *int_ack(m68k_context *context)
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
945 {
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
946 genesis_context * gen = context->system;
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
947 if ((gen->header.type != SYSTEM_PICO && gen->header.type != SYSTEM_COPERA) || context->int_num > 3) {
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
948 vdp_context * v_context = gen->vdp;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
949 //printf("acknowledging %d @ %d:%d, vcounter: %d, hslot: %d\n", context->int_ack, context->cycles, v_context->cycles, v_context->vcounter, v_context->hslot);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
950 vdp_run_context(v_context, context->cycles);
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
951 vdp_int_ack(v_context);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
952 }
2354
a773b8f09292 Remove old refresh hack that is causing VDPFifoTesting to have a failed test
Michael Pavone <pavone@retrodev.com>
parents: 2350
diff changeset
953
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
954 //the Genesis responds to these exclusively with !VPA which means its a slow
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
955 //6800 operation. documentation says these can take between 10 and 19 cycles.
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
956 //actual results measurements seem to suggest it's actually between 9 and 18
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
957 //Base 68K core has added 4 cycles for a normal int ack cycle already
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
958 //We add 5 + the current cycle count (in 68K cycles) mod 10 to simulate the
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
959 //additional variable delay from the use of the 6800 cycle
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
960 uint32_t cycle_count = context->cycles / context->opts->gen.clock_divider;
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
961 context->cycles += 5 + (cycle_count % 10);
2354
a773b8f09292 Remove old refresh hack that is causing VDPFifoTesting to have a failed test
Michael Pavone <pavone@retrodev.com>
parents: 2350
diff changeset
962
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
963 return context;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
964 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
965
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
966 static m68k_context * vdp_port_write(uint32_t vdp_port, m68k_context * context, uint16_t value)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
967 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
968 if (vdp_port & 0x2700E0) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
969 fatal_error("machine freeze due to write to address %X\n", 0xC00000 | vdp_port);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
970 }
2037
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
971 genesis_context * gen = context->system;
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
972 if (!gen->vdp_unlocked) {
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
973 fatal_error("machine freeze due to VDP write to %X without TMSS unlock\n", 0xC00000 | vdp_port);
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
974 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
975 vdp_port &= 0x1F;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
976 //printf("vdp_port write: %X, value: %X, cycle: %d\n", vdp_port, value, context->cycles);
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
977
1372
d78ef6f4fba2 Attempt at improving refresh emulation
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
978 //do refresh check here so we can avoid adding a penalty for a refresh that happens during a VDP access
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
979 gen_update_refresh_free_access(context);
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
980
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
981 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
982 sync_components_pico(context, 0);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
983 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
984 sync_components(context, 0);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
985 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
986 vdp_context *v_context = gen->vdp;
1374
8f404b1fa572 Go back to resetting the refresh counter after a DMA. Probably not quite correct as it is probably reset on VDP triggered refresh, but this is close enough for now given the general limitations with my refresh code. VDP FIFO Testing seems to be passing 100% reliably again (was occassionally failing still with the last commit)
Michael Pavone <pavone@retrodev.com>
parents: 1373
diff changeset
987 uint32_t before_cycle = v_context->cycles;
2391
664c3e749428 Restore reset of refresh counter after DMA since its removal caused some regressions
Michael Pavone <pavone@retrodev.com>
parents: 2384
diff changeset
988 uint8_t did_dma = 0;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
989 if (vdp_port < 0x10) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
990 int blocked;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
991 if (vdp_port < 4) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
992 while (vdp_data_port_write(v_context, value) < 0) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
993 while(v_context->flags & FLAG_DMA_RUN) {
2391
664c3e749428 Restore reset of refresh counter after DMA since its removal caused some regressions
Michael Pavone <pavone@retrodev.com>
parents: 2384
diff changeset
994 did_dma = 1;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
995 vdp_run_dma_done(v_context, gen->frame_end);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
996 if (v_context->cycles >= gen->frame_end) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
997 uint32_t cycle_diff = v_context->cycles - context->cycles;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
998 uint32_t m68k_cycle_diff = (cycle_diff / MCLKS_PER_68K) * MCLKS_PER_68K;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
999 if (m68k_cycle_diff < cycle_diff) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1000 m68k_cycle_diff += MCLKS_PER_68K;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1001 }
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1002 context->cycles += m68k_cycle_diff;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1003 gen->bus_busy = 1;
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1004 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1005 sync_components_pico(context, 0);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1006 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1007 sync_components(context, 0);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1008 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1009 gen->bus_busy = 0;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1010 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1011 }
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1012 //context->cycles = v_context->cycles;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1013 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1014 } else if(vdp_port < 8) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1015 vdp_run_context_full(v_context, context->cycles);
1373
7cfc9d532e34 Fixed regression from VDP sync changes. Direct color DMA demos are now achieving stable sync again
Michael Pavone <pavone@retrodev.com>
parents: 1372
diff changeset
1016 before_cycle = v_context->cycles;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1017 blocked = vdp_control_port_write(v_context, value, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1018 if (blocked) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1019 while (blocked) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1020 while(v_context->flags & FLAG_DMA_RUN) {
2391
664c3e749428 Restore reset of refresh counter after DMA since its removal caused some regressions
Michael Pavone <pavone@retrodev.com>
parents: 2384
diff changeset
1021 did_dma = 1;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1022 vdp_run_dma_done(v_context, gen->frame_end);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1023 if (v_context->cycles >= gen->frame_end) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1024 uint32_t cycle_diff = v_context->cycles - context->cycles;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1025 uint32_t m68k_cycle_diff = (cycle_diff / MCLKS_PER_68K) * MCLKS_PER_68K;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1026 if (m68k_cycle_diff < cycle_diff) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1027 m68k_cycle_diff += MCLKS_PER_68K;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1028 }
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1029 context->cycles += m68k_cycle_diff;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1030 gen->bus_busy = 1;
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1031 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1032 sync_components_pico(context, 0);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1033 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1034 sync_components(context, 0);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1035 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1036 gen->bus_busy = 0;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1037 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1038 }
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
1039
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1040 if (blocked < 0) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1041 blocked = vdp_control_port_write(v_context, value, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1042 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1043 blocked = 0;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1044 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1045 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1046 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1047 context->sync_cycle = gen->frame_end = vdp_cycles_to_frame_end(v_context);
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1048 //printf("Set sync cycle to: %d @ %d, vcounter: %d, hslot: %d\n", context->sync_cycle, context->cycles, v_context->vcounter, v_context->hslot);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1049 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1050 adjust_int_cycle_pico(context, v_context);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1051 } else {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1052 adjust_int_cycle(context, v_context);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1053 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1054 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1055 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1056 fatal_error("Illegal write to HV Counter port %X\n", vdp_port);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1057 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1058 if (v_context->cycles != before_cycle) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1059 //printf("68K paused for %d (%d) cycles at cycle %d (%d) for write\n", v_context->cycles - context->cycles, v_context->cycles - before_cycle, context->cycles, before_cycle);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1060 uint32_t cycle_diff = v_context->cycles - context->cycles;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1061 uint32_t m68k_cycle_diff = (cycle_diff / MCLKS_PER_68K) * MCLKS_PER_68K;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1062 if (m68k_cycle_diff < cycle_diff) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1063 m68k_cycle_diff += MCLKS_PER_68K;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1064 }
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1065 context->cycles += m68k_cycle_diff;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1066 if (gen->header.type == SYSTEM_GENESIS) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1067 //Lock the Z80 out of the bus until the VDP access is complete
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1068 gen->bus_busy = 1;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1069 sync_z80(gen, v_context->cycles);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1070 gen->bus_busy = 0;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1071 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1072 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1073 } else if (vdp_port < 0x18) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1074 psg_write(gen->psg, value);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1075 } else {
1318
bfdd450e7dea Initial work on handling the 128KB VRAM mode bit and some basic prep work for VDP test register support
Michael Pavone <pavone@retrodev.com>
parents: 1316
diff changeset
1076 vdp_test_port_write(gen->vdp, value);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1077 }
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1078
2391
664c3e749428 Restore reset of refresh counter after DMA since its removal caused some regressions
Michael Pavone <pavone@retrodev.com>
parents: 2384
diff changeset
1079 if (did_dma) {
664c3e749428 Restore reset of refresh counter after DMA since its removal caused some regressions
Michael Pavone <pavone@retrodev.com>
parents: 2384
diff changeset
1080 gen->refresh_counter = 0;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1081 gen->last_sync_cycle = context->cycles;
2391
664c3e749428 Restore reset of refresh counter after DMA since its removal caused some regressions
Michael Pavone <pavone@retrodev.com>
parents: 2384
diff changeset
1082 } else {
664c3e749428 Restore reset of refresh counter after DMA since its removal caused some regressions
Michael Pavone <pavone@retrodev.com>
parents: 2384
diff changeset
1083 //refresh may have happened while we were waiting on the VDP,
664c3e749428 Restore reset of refresh counter after DMA since its removal caused some regressions
Michael Pavone <pavone@retrodev.com>
parents: 2384
diff changeset
1084 //so advance refresh_counter but don't add any delays
664c3e749428 Restore reset of refresh counter after DMA since its removal caused some regressions
Michael Pavone <pavone@retrodev.com>
parents: 2384
diff changeset
1085 gen_update_refresh_no_wait(context);
664c3e749428 Restore reset of refresh counter after DMA since its removal caused some regressions
Michael Pavone <pavone@retrodev.com>
parents: 2384
diff changeset
1086 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1087 return context;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1088 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1089
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1090 static m68k_context * vdp_port_write_b(uint32_t vdp_port, m68k_context * context, uint8_t value)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1091 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1092 return vdp_port_write(vdp_port, context, vdp_port < 0x10 ? value | value << 8 : ((vdp_port & 1) ? value : 0));
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1093 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1094
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1095 static void * z80_vdp_port_write(uint32_t vdp_port, void * vcontext, uint8_t value)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1096 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1097 z80_context * context = vcontext;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1098 genesis_context * gen = context->system;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1099 vdp_port &= 0xFF;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1100 if (vdp_port & 0xE0) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1101 fatal_error("machine freeze due to write to Z80 address %X\n", 0x7F00 | vdp_port);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1102 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1103 if (vdp_port < 0x10) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1104 //These probably won't currently interact well with the 68K accessing the VDP
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1105 if (vdp_port < 4) {
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1106 vdp_run_context(gen->vdp, context->Z80_CYCLE);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1107 vdp_data_port_write(gen->vdp, value << 8 | value);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1108 } else if (vdp_port < 8) {
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1109 vdp_run_context_full(gen->vdp, context->Z80_CYCLE);
2227
eaaf28af3c94 Implement VDP read latency and invalid write delays revealed by Ti_'s instruction timing ROM
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
1110 vdp_control_port_write(gen->vdp, value << 8 | value, context->Z80_CYCLE);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1111 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1112 fatal_error("Illegal write to HV Counter port %X\n", vdp_port);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1113 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1114 } else if (vdp_port < 0x18) {
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1115 sync_sound(gen, context->Z80_CYCLE);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1116 psg_write(gen->psg, value);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1117 } else {
2327
9dd27530c570 Fix Z80 access to VDP debug register
Michael Pavone <pavone@retrodev.com>
parents: 2302
diff changeset
1118 vdp_test_port_write(gen->vdp, value << 8 | value);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1119 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1120 return context;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1121 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1122
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1123 static uint16_t vdp_port_read(uint32_t vdp_port, m68k_context * context)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1124 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1125 if (vdp_port & 0x2700E0) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1126 fatal_error("machine freeze due to read from address %X\n", 0xC00000 | vdp_port);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1127 }
2037
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
1128 genesis_context *gen = context->system;
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
1129 if (!gen->vdp_unlocked) {
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
1130 fatal_error("machine freeze due to VDP read from %X without TMSS unlock\n", 0xC00000 | vdp_port);
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
1131 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1132 vdp_port &= 0x1F;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1133 uint16_t value;
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1134
1372
d78ef6f4fba2 Attempt at improving refresh emulation
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
1135 //do refresh check here so we can avoid adding a penalty for a refresh that happens during a VDP access
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
1136 gen_update_refresh_free_access(context);
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1137
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1138 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1139 sync_components_pico(context, 0);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1140 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1141 sync_components(context, 0);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1142 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1143 vdp_context * v_context = gen->vdp;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1144 uint32_t before_cycle = context->cycles;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1145 if (vdp_port < 0x10) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1146 if (vdp_port < 4) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1147 value = vdp_data_port_read(v_context, &context->cycles, MCLKS_PER_68K);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1148 } else if(vdp_port < 8) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1149 value = vdp_control_port_read(v_context);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1150 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1151 value = vdp_hv_counter_read(v_context);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1152 //printf("HV Counter: %X at cycle %d\n", value, v_context->cycles);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1153 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1154 } else if (vdp_port < 0x18){
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1155 fatal_error("Illegal read from PSG port %X\n", vdp_port);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1156 } else {
1869
dc94354eab66 Fix accuracy bugs used by Novedicus to detect BlastEm/Exodus
Michael Pavone <pavone@retrodev.com>
parents: 1849
diff changeset
1157 value = get_open_bus_value(&gen->header);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1158 }
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1159 if (context->cycles != before_cycle) {
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1160 //printf("68K paused for %d (%d) cycles at cycle %d (%d) for read\n", v_context->cycles - context->cycles, v_context->cycles - before_cycle, context->cycles, before_cycle);
2021
270a4c875e0a Backed out changeset 96971b673f51
Michael Pavone <pavone@retrodev.com>
parents: 2012
diff changeset
1161 //Lock the Z80 out of the bus until the VDP access is complete
270a4c875e0a Backed out changeset 96971b673f51
Michael Pavone <pavone@retrodev.com>
parents: 2012
diff changeset
1162 genesis_context *gen = context->system;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1163 if (gen->header.type == SYSTEM_GENESIS) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1164 gen->bus_busy = 1;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1165 sync_z80(gen, context->cycles);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1166 gen->bus_busy = 0;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1167 }
2021
270a4c875e0a Backed out changeset 96971b673f51
Michael Pavone <pavone@retrodev.com>
parents: 2012
diff changeset
1168 }
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1169
1372
d78ef6f4fba2 Attempt at improving refresh emulation
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
1170 //refresh may have happened while we were waiting on the VDP,
d78ef6f4fba2 Attempt at improving refresh emulation
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
1171 //so advance refresh_counter but don't add any delays
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
1172 gen_update_refresh_no_wait(context);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1173 return value;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1174 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1175
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1176 static uint8_t vdp_port_read_b(uint32_t vdp_port, m68k_context * context)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1177 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1178 uint16_t value = vdp_port_read(vdp_port, context);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1179 if (vdp_port & 1) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1180 return value;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1181 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1182 return value >> 8;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1183 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1184 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1185
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1186 static uint8_t z80_vdp_port_read(uint32_t vdp_port, void * vcontext)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1187 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1188 z80_context * context = vcontext;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1189 if (vdp_port & 0xE0) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1190 fatal_error("machine freeze due to read from Z80 address %X\n", 0x7F00 | vdp_port);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1191 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1192 genesis_context * gen = context->system;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1193 //VDP access goes over the 68K bus like a bank area access
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1194 //typical delay from bus arbitration
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1195 context->Z80_CYCLE += 3 * MCLKS_PER_Z80;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1196 //TODO: add cycle for an access right after a previous one
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1197 //TODO: Below cycle time is an estimate based on the time between 68K !BG goes low and Z80 !MREQ goes high
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1198 // Needs a new logic analyzer capture to get the actual delay on the 68K side
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1199 gen->m68k->cycles += 8 * MCLKS_PER_68K;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1200
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1201
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1202 vdp_port &= 0x1F;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1203 uint16_t ret;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1204 if (vdp_port < 0x10) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1205 //These probably won't currently interact well with the 68K accessing the VDP
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1206 vdp_run_context(gen->vdp, context->Z80_CYCLE);
2227
eaaf28af3c94 Implement VDP read latency and invalid write delays revealed by Ti_'s instruction timing ROM
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
1207 uint32_t before = context->Z80_CYCLE;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1208 if (vdp_port < 4) {
2227
eaaf28af3c94 Implement VDP read latency and invalid write delays revealed by Ti_'s instruction timing ROM
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
1209 ret = vdp_data_port_read(gen->vdp, &context->Z80_CYCLE, MCLKS_PER_Z80);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1210 } else if (vdp_port < 8) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1211 ret = vdp_control_port_read(gen->vdp);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1212 } else {
1316
3185438e0134 Fix copy pasta error in handling of Z80 VDP port reads. HV counter reads are not illegal writes =P. Fixes immediate exit in Overdrive II, though other problems remain
Michael Pavone <pavone@retrodev.com>
parents: 1309
diff changeset
1213 ret = vdp_hv_counter_read(gen->vdp);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1214 }
2227
eaaf28af3c94 Implement VDP read latency and invalid write delays revealed by Ti_'s instruction timing ROM
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
1215 if (context->Z80_CYCLE != before) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1216 gen->m68k->cycles += context->Z80_CYCLE - before;
2227
eaaf28af3c94 Implement VDP read latency and invalid write delays revealed by Ti_'s instruction timing ROM
Michael Pavone <pavone@retrodev.com>
parents: 2194
diff changeset
1217 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1218 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1219 //TODO: Figure out the correct value today
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1220 ret = 0xFFFF;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1221 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1222 return vdp_port & 1 ? ret : ret >> 8;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1223 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1224
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1225 //TODO: Move this inside the system context
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1226 static uint32_t zram_counter = 0;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1227
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1228 static m68k_context * io_write(uint32_t location, m68k_context * context, uint8_t value)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1229 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1230 genesis_context * gen = context->system;
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1231
2012
b05295c2ad04 Small improvement to refresh cycle approximation
Mike Pavone <pavone@retrodev.com>
parents: 1998
diff changeset
1232 //do refresh check here so we can avoid adding a penalty for a refresh that happens during an IO area access
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
1233 gen_update_refresh_free_access(context);
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1234
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1235 if (location < 0x10000) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1236 //Access to Z80 memory incurs a one 68K cycle wait state
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1237 context->cycles += MCLKS_PER_68K;
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1238 if (!z80_enabled || z80_get_busack(gen->z80, context->cycles)) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1239 location &= 0x7FFF;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1240 if (location < 0x4000) {
1104
4224980a5f84 Fix the previous WIP commit. Quick tests suggests things are no more broken than before now.
Michael Pavone <pavone@retrodev.com>
parents: 1103
diff changeset
1241 gen->zram[location & 0x1FFF] = value;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1242 #ifndef NO_Z80
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1243 z80_handle_code_write(location & 0x1FFF, gen->z80);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1244 #endif
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1245 } else if (location < 0x6000) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1246 sync_sound(gen, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1247 if (location & 1) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1248 ym_data_write(gen->ym, value);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1249 } else if(location & 2) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1250 ym_address_write_part2(gen->ym, value);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1251 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1252 ym_address_write_part1(gen->ym, value);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1253 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1254 } else if (location == 0x6000) {
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1255 gen->z80_bank_reg = (gen->z80_bank_reg >> 1 | value << 8) & 0x1FF;
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1256 if (gen->z80_bank_reg < 0x80) {
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1257 gen->z80->mem_pointers[1] = (gen->z80_bank_reg << 15) + ((char *)gen->z80->mem_pointers[2]);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1258 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1259 gen->z80->mem_pointers[1] = NULL;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1260 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1261 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1262 fatal_error("68K write to unhandled Z80 address %X\n", location);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1263 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1264 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1265 } else {
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1266 if (location < 0x10100) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1267 switch(location >> 1 & 0xFF)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1268 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1269 case 0x1:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1270 io_data_write(gen->io.ports, value, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1271 break;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1272 case 0x2:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1273 io_data_write(gen->io.ports+1, value, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1274 break;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1275 case 0x3:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1276 io_data_write(gen->io.ports+2, value, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1277 break;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1278 case 0x4:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1279 io_control_write(gen->io.ports, value, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1280 break;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1281 case 0x5:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1282 io_control_write(gen->io.ports+1, value, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1283 break;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1284 case 0x6:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1285 io_control_write(gen->io.ports+2, value, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1286 break;
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1287 case 0x7:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1288 io_tx_write(gen->io.ports, value, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1289 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1290 case 0x8:
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1291 case 0xB:
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1292 case 0xE:
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1293 //serial input port is not writeable
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1294 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1295 case 0x9:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1296 io_sctrl_write(gen->io.ports, value, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1297 gen->io.ports[0].serial_ctrl = value;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1298 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1299 case 0xA:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1300 io_tx_write(gen->io.ports + 1, value, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1301 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1302 case 0xC:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1303 io_sctrl_write(gen->io.ports + 1, value, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1304 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1305 case 0xD:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1306 io_tx_write(gen->io.ports + 2, value, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1307 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1308 case 0xF:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1309 io_sctrl_write(gen->io.ports + 2, value, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1310 break;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1311 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1312 } else {
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1313 uint32_t masked = location & 0xFFF00;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1314 if (masked == 0x11100) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1315 if (value & 1) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1316 dputs("bus requesting Z80");
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1317 if (z80_enabled) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1318 z80_assert_busreq(gen->z80, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1319 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1320 gen->z80->busack = 1;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1321 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1322 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1323 if (gen->z80->busreq) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1324 dputs("releasing z80 bus");
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1325 #ifdef DO_DEBUG_PRINT
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1326 char fname[20];
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1327 sprintf(fname, "zram-%d", zram_counter++);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1328 FILE * f = fopen(fname, "wb");
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1329 fwrite(z80_ram, 1, sizeof(z80_ram), f);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1330 fclose(f);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1331 #endif
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1332 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1333 if (z80_enabled) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1334 z80_clear_busreq(gen->z80, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1335 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1336 gen->z80->busack = 0;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1337 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1338 }
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1339 } else if (masked == 0x11200) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1340 sync_z80(gen, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1341 if (value & 1) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1342 if (z80_enabled) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1343 z80_clear_reset(gen->z80, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1344 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1345 gen->z80->reset = 0;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1346 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1347 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1348 if (z80_enabled) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1349 z80_assert_reset(gen->z80, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1350 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1351 gen->z80->reset = 1;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1352 }
1308
1b3fe6e03e7b Reset YM2612 whenver the Z80 is reset. Fixes issue with stuck notes in Fantastic Dizzy and Kid Chameleon
Michael Pavone <pavone@retrodev.com>
parents: 1304
diff changeset
1353 ym_reset(gen->ym);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1354 }
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1355 } else if (masked != 0x11300 && masked != 0x11000) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1356 fatal_error("Machine freeze due to unmapped write to address %X\n", location | 0xA00000);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1357 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1358 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1359 }
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1360
2012
b05295c2ad04 Small improvement to refresh cycle approximation
Mike Pavone <pavone@retrodev.com>
parents: 1998
diff changeset
1361 //no refresh delays during IO access
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
1362 gen_update_refresh_no_wait(context);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1363 return context;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1364 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1365
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1366 static m68k_context * io_write_w(uint32_t location, m68k_context * context, uint16_t value)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1367 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1368 if (location < 0x10000 || (location & 0x1FFF) >= 0x100) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1369 return io_write(location, context, value >> 8);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1370 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1371 return io_write(location, context, value);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1372 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1373 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1374
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1375 static void* pico_io_write(uint32_t location, void *vcontext, uint8_t value)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1376 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1377 printf("Pico IO write.b %X - %X\n", location, value);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1378 return vcontext;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1379 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1380
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1381 static void* pico_io_write_w(uint32_t location, void *vcontext, uint16_t value)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1382 {
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1383 uint32_t port = location & 0xFE;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1384 m68k_context *context = vcontext;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1385 genesis_context *gen = context->system;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1386 if (port == 0x10) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1387 sync_sound_pico(gen, context->cycles);
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1388 pico_pcm_data_write(gen->adpcm, value);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1389 printf("PICO ADPCM Data: %04X\n", value);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1390 if (context->int_num == 3) {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1391 adjust_int_cycle_pico(context, gen->vdp);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1392 }
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1393 } else if (port == 0x12) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1394 sync_sound_pico(gen, context->cycles);
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1395 printf("PICO ADPCM Control: %04X\n", value);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1396 pico_pcm_ctrl_write(gen->adpcm, value);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1397 adjust_int_cycle_pico(context, gen->vdp);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1398 } else {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1399 return pico_io_write(location, vcontext, value);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1400 }
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1401 return vcontext;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1402 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1403
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1404 #define FOREIGN 0x80
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1405 #define HZ50 0x40
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1406 #define USA FOREIGN
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1407 #define JAP 0x00
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1408 #define EUR (HZ50|FOREIGN)
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1409 #define NO_DISK 0x20
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1410
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1411 static uint8_t io_read(uint32_t location, m68k_context * context)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1412 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1413 uint8_t value;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1414 genesis_context *gen = context->system;
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1415
2012
b05295c2ad04 Small improvement to refresh cycle approximation
Mike Pavone <pavone@retrodev.com>
parents: 1998
diff changeset
1416 //do refresh check here so we can avoid adding a penalty for a refresh that happens during an IO area access
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
1417 gen_update_refresh_free_access(context);
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1418
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1419 if (location < 0x10000) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1420 //Access to Z80 memory incurs a one 68K cycle wait state
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1421 context->cycles += MCLKS_PER_68K;
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1422 if (!z80_enabled || z80_get_busack(gen->z80, context->cycles)) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1423 location &= 0x7FFF;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1424 if (location < 0x4000) {
1104
4224980a5f84 Fix the previous WIP commit. Quick tests suggests things are no more broken than before now.
Michael Pavone <pavone@retrodev.com>
parents: 1103
diff changeset
1425 value = gen->zram[location & 0x1FFF];
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1426 } else if (location < 0x6000) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1427 sync_sound(gen, context->cycles);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1428 value = ym_read_status(gen->ym, context->cycles, location);
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1429 } else if (location < 0x7F00) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1430 value = 0xFF;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1431 } else {
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1432 fatal_error("Machine freeze due to read of Z80 VDP memory window by 68K: %X\n", location | 0xA00000);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1433 value = 0xFF;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1434 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1435 } else {
1914
5b94e0e7c5a5 Reading from Z80 bus when Z80 is not bus requested should return open bus. Fixes regression in Metal Sonic Rebooted
Michael Pavone <pavone@retrodev.com>
parents: 1909
diff changeset
1436 uint16_t word = get_open_bus_value(&gen->header);
5b94e0e7c5a5 Reading from Z80 bus when Z80 is not bus requested should return open bus. Fixes regression in Metal Sonic Rebooted
Michael Pavone <pavone@retrodev.com>
parents: 1909
diff changeset
1437 value = location & 1 ? word : word >> 8;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1438 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1439 } else {
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1440 if (location < 0x10100) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1441 switch(location >> 1 & 0xFF)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1442 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1443 case 0x0:
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1444 //version bits should be 0 for now since we're not emulating TMSS
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1445 value = gen->version_reg;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1446 break;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1447 case 0x1:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1448 value = io_data_read(gen->io.ports, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1449 break;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1450 case 0x2:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1451 value = io_data_read(gen->io.ports+1, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1452 break;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1453 case 0x3:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1454 value = io_data_read(gen->io.ports+2, context->cycles);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1455 break;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1456 case 0x4:
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
1457 value = gen->io.ports[0].control;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1458 break;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1459 case 0x5:
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
1460 value = gen->io.ports[1].control;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1461 break;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1462 case 0x6:
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
1463 value = gen->io.ports[2].control;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1464 break;
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1465 case 0x7:
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1466 value = gen->io.ports[0].serial_out;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1467 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1468 case 0x8:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1469 value = io_rx_read(gen->io.ports, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1470 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1471 case 0x9:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1472 value = io_sctrl_read(gen->io.ports, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1473 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1474 case 0xA:
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1475 value = gen->io.ports[1].serial_out;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1476 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1477 case 0xB:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1478 value = io_rx_read(gen->io.ports + 1, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1479 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1480 case 0xC:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1481 value = io_sctrl_read(gen->io.ports, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1482 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1483 case 0xD:
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1484 value = gen->io.ports[2].serial_out;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1485 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1486 case 0xE:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1487 value = io_rx_read(gen->io.ports + 1, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1488 break;
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1489 case 0xF:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1490 value = io_sctrl_read(gen->io.ports, context->cycles);
1215
cf69a179aeaf Basic implementation of serial IO registers, but without actual serial IO support. Needed to run a certain software check cartridge that is floating around.
Michael Pavone <pavone@retrodev.com>
parents: 1208
diff changeset
1491 break;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1492 default:
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1493 value = get_open_bus_value(&gen->header) >> 8;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1494 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1495 } else {
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1496 uint32_t masked = location & 0xFFF00;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1497 if (masked == 0x11100) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1498 value = z80_enabled ? !z80_get_busack(gen->z80, context->cycles) : !gen->z80->busack;
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents: 1116
diff changeset
1499 value |= (get_open_bus_value(&gen->header) >> 8) & 0xFE;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1500 dprintf("Byte read of BUSREQ returned %d @ %d (reset: %d)\n", value, context->cycles, gen->z80->reset);
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1501 } else if (masked == 0x11200) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1502 value = !gen->z80->reset;
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1503 } else if (masked == 0x11300 || masked == 0x11000) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1504 //A11300 is apparently completely unused
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1505 //A11000 is the memory control register which I am assuming is write only
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1506 value = get_open_bus_value(&gen->header) >> 8;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1507 } else {
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1508 location |= 0xA00000;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1509 fatal_error("Machine freeze due to read of unmapped IO location %X\n", location);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1510 value = 0xFF;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1511 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1512 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1513 }
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1514
2012
b05295c2ad04 Small improvement to refresh cycle approximation
Mike Pavone <pavone@retrodev.com>
parents: 1998
diff changeset
1515 //no refresh delays during IO access
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
1516 gen_update_refresh_no_wait(context);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1517 return value;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1518 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1519
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1520 static uint16_t io_read_w(uint32_t location, m68k_context * context)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1521 {
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents: 1116
diff changeset
1522 genesis_context *gen = context->system;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1523 uint16_t value = io_read(location, context);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1524 if (location < 0x10000 || (location & 0x1FFF) < 0x100) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1525 value = value | (value << 8);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1526 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1527 value <<= 8;
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents: 1116
diff changeset
1528 value |= get_open_bus_value(&gen->header) & 0xFF;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1529 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1530 return value;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1531 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1532
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1533 static uint8_t pico_io_read(uint32_t location, void *vcontext)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1534 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1535 m68k_context *m68k = vcontext;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1536 genesis_context *gen = m68k->system;
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1537 uint16_t tmp;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1538 switch(location >> 1 & 0x7F)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1539 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1540 case 0:
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1541 return gen->version_reg;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1542 case 1:
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1543 return gen->pico_button_state;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1544 case 2:
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1545 return gen->pico_pen_x >> 8;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1546 case 3:
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1547 return gen->pico_pen_x;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1548 case 4:
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1549 return gen->pico_pen_y >> 8;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1550 case 5:
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1551 return gen->pico_pen_y;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1552 case 6:
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1553 return gen->pico_page;
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1554 case 7:
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1555 //Copera titles seem to expect bit 0 to be 0 on a Copera and 1 on a Pico
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1556 if (gen->header.type == SYSTEM_PICO) {
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1557 return 1;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1558 } else {
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1559 return 0;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1560 }
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1561 case 8:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1562 //printf("uPD7759 data read @ %u\n", m68k->cycles);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1563 sync_sound_pico(gen, m68k->cycles);
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1564 tmp = pico_pcm_data_read(gen->adpcm);
2433
2907c3312423 Fix byte reads of ADPCM ports. Fixes hangs in Sanchoume no Tama and Sailor Moon Sailor Stars - Tokimeki Party
Michael Pavone <pavone@retrodev.com>
parents: 2431
diff changeset
1565 return (location & 1) ? tmp : tmp >> 8;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1566 case 9:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1567 //printf("uPD7759 contro/status read @ %u\n", m68k->cycles);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1568 sync_sound_pico(gen, m68k->cycles);
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1569 tmp = pico_pcm_ctrl_read(gen->adpcm);
2433
2907c3312423 Fix byte reads of ADPCM ports. Fixes hangs in Sanchoume no Tama and Sailor Moon Sailor Stars - Tokimeki Party
Michael Pavone <pavone@retrodev.com>
parents: 2431
diff changeset
1570 return (location & 1) ? tmp : tmp >> 8;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1571 return 0;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1572 default:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1573 printf("Unknown Pico IO read %X @ %u\n", location, m68k->cycles);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1574 return 0xFF;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1575 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1576 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1577
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1578 static uint16_t pico_io_read_w(uint32_t location, void *vcontext)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1579 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1580 m68k_context *m68k = vcontext;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1581 genesis_context *gen = m68k->system;
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1582 uint32_t port = location & 0xFE;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1583 if (port == 0x10) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1584 sync_sound_pico(gen, m68k->cycles);
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1585 return pico_pcm_data_read(gen->adpcm);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1586 } else if (port == 0x12) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1587 sync_sound_pico(gen, m68k->cycles);
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1588 return pico_pcm_ctrl_read(gen->adpcm);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
1589 }
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1590 uint16_t value = pico_io_read(location, vcontext);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1591 return value | (value << 8);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1592 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1593
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1594 static uint16_t copera_io_read_w(uint32_t location, void *vcontext)
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1595 {
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1596 printf("Unhandled Copera 16-bit read %X\n", location);
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1597 return 0xFFFF;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1598 }
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1599
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1600 static uint8_t copera_io_read(uint32_t location, void *vcontext)
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1601 {
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1602 uint8_t ret;
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1603 m68k_context *m68k = vcontext;
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1604 genesis_context *gen = m68k->system;
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1605 switch (location & 0xFF)
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1606 {
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1607 case 1:
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1608 case 5:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1609 ymz263b_run(gen->ymz, m68k->cycles);
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1610 ret = ymz263b_status_read(gen->ymz);
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1611 printf("Copera YMZ263 Status read - %X: %X\n", location, ret);
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1612 adjust_int_cycle_pico(gen->m68k, gen->vdp);
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1613 return ret;
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1614 case 3:
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1615 case 7:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1616 ymz263b_run(gen->ymz, m68k->cycles);
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1617 ret = ymz263b_data_read(gen->ymz, location & 4);
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1618 printf("Copera YMZ263 Data read - %X: %X\n", location, ret);
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1619 return ret;
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1620 default:
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1621 printf("Unhandled Copera 8-bit read %X\n", location);
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1622 return 0xFF;
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1623 }
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1624 }
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1625
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1626 static void* copera_io_write_w(uint32_t location, void *vcontext, uint16_t value)
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1627 {
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1628 printf("Unhandled Copera 16-bit write %X: %X\n", location, value);
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1629 return vcontext;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1630 }
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1631
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1632 static void* copera_io_write(uint32_t location, void *vcontext, uint8_t value)
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1633 {
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1634 m68k_context *m68k = vcontext;
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1635 genesis_context *gen = m68k->system;
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1636 switch (location & 0xFF)
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1637 {
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1638 case 1:
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1639 case 5:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1640 ymz263b_run(gen->ymz, m68k->cycles);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1641 printf("Copera YMZ263 Address write - %X: %X\n", location, value);
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1642 ymz263b_address_write(gen->ymz, value);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1643 break;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1644 case 3:
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1645 case 7:
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1646 ymz263b_run(gen->ymz, m68k->cycles);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1647 printf("Copera YMZ263 Channel #%d Data write - %X: %X\n", ((location & 4) >> 2) + 1, location, value);
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1648 ymz263b_data_write(gen->ymz, location & 4, value);
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1649 adjust_int_cycle_pico(gen->m68k, gen->vdp);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1650 break;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1651 case 0x24:
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1652 case 0x34:
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1653 printf("Copera YMF262 Address Part #%d write - %X: %X\n", ((location >> 4) & 1) + 1, location, value);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1654 break;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1655 case 0x28:
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
1656 printf("Copera YMF262 Data write - %X: %X\n", location, value);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1657 break;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1658 case 0x40:
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1659 //Bit 4 = SCI
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1660 //Bit 5 = DIN
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1661 //Bit 6 = A0
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1662 //Possible Bit 0-3 are the same but for the other YM7128B
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1663 printf("Copera YM7128B Write - %X: %X\n", location, value);
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1664 break;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1665 default:
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1666 printf("Unhandled Copera 8-bit write %X: %X\n", location, value);
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1667 }
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1668 return vcontext;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1669 }
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1670
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1671 static void * z80_write_ym(uint32_t location, void * vcontext, uint8_t value)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1672 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1673 z80_context * context = vcontext;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1674 genesis_context * gen = context->system;
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1675 sync_sound(gen, context->Z80_CYCLE);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1676 if (location & 1) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1677 ym_data_write(gen->ym, value);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1678 } else if (location & 2) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1679 ym_address_write_part2(gen->ym, value);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1680 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1681 ym_address_write_part1(gen->ym, value);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1682 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1683 return context;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1684 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1685
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1686 static uint8_t z80_read_ym(uint32_t location, void * vcontext)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1687 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1688 z80_context * context = vcontext;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1689 genesis_context * gen = context->system;
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1690 sync_sound(gen, context->Z80_CYCLE);
1904
8312e574100a Implement selectable YM2612/YM3834 invalid status port behavior
Michael Pavone <pavone@retrodev.com>
parents: 1902
diff changeset
1691 return ym_read_status(gen->ym, context->Z80_CYCLE, location);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1692 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1693
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1694 static uint8_t z80_read_bank(uint32_t location, void * vcontext)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1695 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1696 z80_context * context = vcontext;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1697 genesis_context *gen = context->system;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1698 if (gen->bus_busy) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1699 context->Z80_CYCLE = gen->m68k->cycles;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1700 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1701 //typical delay from bus arbitration
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1702 context->Z80_CYCLE += 3 * MCLKS_PER_Z80;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1703 //TODO: add cycle for an access right after a previous one
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1704 //TODO: Below cycle time is an estimate based on the time between 68K !BG goes low and Z80 !MREQ goes high
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1705 // Needs a new logic analyzer capture to get the actual delay on the 68K side
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1706 gen->m68k->cycles += 8 * MCLKS_PER_68K;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1707
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1708 location &= 0x7FFF;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1709 if (context->mem_pointers[1]) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1710 return context->mem_pointers[1][location ^ 1];
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1711 }
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1712 uint32_t address = gen->z80_bank_reg << 15 | location;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1713 if (address >= 0xC00000 && address < 0xE00000) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1714 return z80_vdp_port_read(location & 0xFF, context);
1869
dc94354eab66 Fix accuracy bugs used by Novedicus to detect BlastEm/Exodus
Michael Pavone <pavone@retrodev.com>
parents: 1849
diff changeset
1715 } else if (address >= 0xA10000 && address <= 0xA10001) {
dc94354eab66 Fix accuracy bugs used by Novedicus to detect BlastEm/Exodus
Michael Pavone <pavone@retrodev.com>
parents: 1849
diff changeset
1716 //Apparently version reg can be read through Z80 banked area
dc94354eab66 Fix accuracy bugs used by Novedicus to detect BlastEm/Exodus
Michael Pavone <pavone@retrodev.com>
parents: 1849
diff changeset
1717 //TODO: Check rest of IO region addresses
dc94354eab66 Fix accuracy bugs used by Novedicus to detect BlastEm/Exodus
Michael Pavone <pavone@retrodev.com>
parents: 1849
diff changeset
1718 return gen->version_reg;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1719 } else {
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1720 fprintf(stderr, "Unhandled read by Z80 from address %X through banked memory area (%X)\n", address, gen->z80_bank_reg << 15);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1721 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1722 return 0;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1723 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1724
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1725 static void *z80_write_bank(uint32_t location, void * vcontext, uint8_t value)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1726 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1727 z80_context * context = vcontext;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1728 genesis_context *gen = context->system;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1729 if (gen->bus_busy) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1730 context->Z80_CYCLE = gen->m68k->cycles;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1731 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1732 //typical delay from bus arbitration
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1733 context->Z80_CYCLE += 3 * MCLKS_PER_Z80;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1734 //TODO: add cycle for an access right after a previous one
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1735 //TODO: Below cycle time is an estimate based on the time between 68K !BG goes low and Z80 !MREQ goes high
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1736 // Needs a new logic analyzer capture to get the actual delay on the 68K side
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1737 gen->m68k->cycles += 8 * MCLKS_PER_68K;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1738
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1739 location &= 0x7FFF;
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1740 uint32_t address = gen->z80_bank_reg << 15 | location;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1741 if (address >= 0xE00000) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1742 address &= 0xFFFF;
1104
4224980a5f84 Fix the previous WIP commit. Quick tests suggests things are no more broken than before now.
Michael Pavone <pavone@retrodev.com>
parents: 1103
diff changeset
1743 ((uint8_t *)gen->work_ram)[address ^ 1] = value;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1744 } else if (address >= 0xC00000) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1745 z80_vdp_port_write(location & 0xFF, context, value);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1746 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1747 fprintf(stderr, "Unhandled write by Z80 to address %X through banked memory area\n", address);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1748 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1749 return context;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1750 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1751
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1752 static void *z80_write_bank_reg(uint32_t location, void * vcontext, uint8_t value)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1753 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1754 z80_context * context = vcontext;
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1755 genesis_context *gen = context->system;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1756
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
1757 gen->z80_bank_reg = (gen->z80_bank_reg >> 1 | value << 8) & 0x1FF;
1445
349d50930c03 Save and restore Z80 bank register in native save states
Michael Pavone <pavone@retrodev.com>
parents: 1444
diff changeset
1758 update_z80_bank_pointer(context->system);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1759
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1760 return context;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1761 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1762
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1763 static uint16_t unused_read(uint32_t location, void *vcontext)
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1764 {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1765 m68k_context *context = vcontext;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1766 genesis_context *gen = context->system;
2228
0db9dc6a9020 Some minor refresh emulation improvements
Michael Pavone <pavone@retrodev.com>
parents: 2227
diff changeset
1767 if (location >= 0x800000) {
0db9dc6a9020 Some minor refresh emulation improvements
Michael Pavone <pavone@retrodev.com>
parents: 2227
diff changeset
1768 //do refresh check here so we can avoid adding a penalty for a refresh that happens during an IO area access
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1769 gen->refresh_counter += context->cycles - 4*MCLKS_PER_68K - gen->last_sync_cycle;
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1770 context->cycles += REFRESH_DELAY * MCLKS_PER_68K * (gen->refresh_counter / (MCLKS_PER_68K * REFRESH_INTERVAL));
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1771 gen->refresh_counter += 4*MCLKS_PER_68K;
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1772 gen->refresh_counter = gen->refresh_counter % (MCLKS_PER_68K * REFRESH_INTERVAL);
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1773 gen->last_sync_cycle = context->cycles;
2228
0db9dc6a9020 Some minor refresh emulation improvements
Michael Pavone <pavone@retrodev.com>
parents: 2227
diff changeset
1774 }
0db9dc6a9020 Some minor refresh emulation improvements
Michael Pavone <pavone@retrodev.com>
parents: 2227
diff changeset
1775
1987
71732f2f6f42 Fix handling of unmapped reads/writes to the cart/expansion port region
Mike Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
1776 if (location < 0x800000 || (location >= 0xA13000 && location < 0xA13100) || (location >= 0xA12000 && location < 0xA12100)) {
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1777 //Only called if the cart/exp doesn't have a more specific handler for this region
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1778 return get_open_bus_value(&gen->header);
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1779 } else if (location == 0xA14000 || location == 0xA14002) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1780 if (gen->version_reg & 0xF) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1781 return gen->tmss_lock[location >> 1 & 1];
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1782 } else {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1783 fatal_error("Machine freeze due to read from TMSS lock when TMSS is not present %X\n", location);
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1784 return 0xFFFF;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1785 }
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1786 } else if (location == 0xA14100) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1787 if (gen->version_reg & 0xF) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1788 return get_open_bus_value(&gen->header);
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1789 } else {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1790 fatal_error("Machine freeze due to read from TMSS control when TMSS is not present %X\n", location);
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1791 return 0xFFFF;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1792 }
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1793 } else {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1794 fatal_error("Machine freeze due to unmapped read from %X\n", location);
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1795 return 0xFFFF;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1796 }
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1797 }
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1798
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1799 static uint8_t unused_read_b(uint32_t location, void *vcontext)
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1800 {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1801 uint16_t v = unused_read(location & 0xFFFFFE, vcontext);
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1802 if (location & 1) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1803 return v;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1804 } else {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1805 return v >> 8;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1806 }
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1807 }
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1808
2037
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
1809 static void check_tmss_lock(genesis_context *gen)
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
1810 {
2039
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1811 gen->vdp_unlocked = gen->tmss_lock[0] == 0x5345 && gen->tmss_lock[1] == 0x4741;
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1812 }
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1813
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1814 static void toggle_tmss_rom(genesis_context *gen)
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1815 {
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1816 m68k_context *context = gen->m68k;
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1817 for (int i = 0; i < NUM_MEM_AREAS; i++)
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1818 {
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1819 uint16_t *tmp = context->mem_pointers[i];
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1820 context->mem_pointers[i] = gen->tmss_pointers[i];
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1821 gen->tmss_pointers[i] = tmp;
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1822 }
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1823 m68k_invalidate_code_range(context, 0, 0x400000);
2037
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
1824 }
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
1825
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1826 static void *unused_write(uint32_t location, void *vcontext, uint16_t value)
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1827 {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1828 m68k_context *context = vcontext;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1829 genesis_context *gen = context->system;
2228
0db9dc6a9020 Some minor refresh emulation improvements
Michael Pavone <pavone@retrodev.com>
parents: 2227
diff changeset
1830 if (location >= 0x800000) {
0db9dc6a9020 Some minor refresh emulation improvements
Michael Pavone <pavone@retrodev.com>
parents: 2227
diff changeset
1831 //do refresh check here so we can avoid adding a penalty for a refresh that happens during an IO area access
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1832 gen->refresh_counter += context->cycles - 4*MCLKS_PER_68K - gen->last_sync_cycle;
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1833 context->cycles += REFRESH_DELAY * MCLKS_PER_68K * (gen->refresh_counter / (MCLKS_PER_68K * REFRESH_INTERVAL));
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1834 gen->refresh_counter += 4*MCLKS_PER_68K;
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1835 gen->refresh_counter = gen->refresh_counter % (MCLKS_PER_68K * REFRESH_INTERVAL);
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1836 gen->last_sync_cycle = context->cycles;
2228
0db9dc6a9020 Some minor refresh emulation improvements
Michael Pavone <pavone@retrodev.com>
parents: 2227
diff changeset
1837 }
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1838
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1839 uint8_t has_tmss = gen->version_reg & 0xF;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1840 if (has_tmss && (location == 0xA14000 || location == 0xA14002)) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1841 gen->tmss_lock[location >> 1 & 1] = value;
2037
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
1842 check_tmss_lock(gen);
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1843 } else if (has_tmss && location == 0xA14100) {
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
1844 value &= 1;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
1845 if (gen->tmss != value) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
1846 gen->tmss = value;
2039
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1847 toggle_tmss_rom(gen);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
1848 }
1987
71732f2f6f42 Fix handling of unmapped reads/writes to the cart/expansion port region
Mike Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
1849 } else if (location < 0x800000 || (location >= 0xA13000 && location < 0xA13100) || (location >= 0xA12000 && location < 0xA12100)) {
71732f2f6f42 Fix handling of unmapped reads/writes to the cart/expansion port region
Mike Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
1850 //these writes are ignored when no relevant hardware is present
71732f2f6f42 Fix handling of unmapped reads/writes to the cart/expansion port region
Mike Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
1851 } else {
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1852 fatal_error("Machine freeze due to unmapped write to %X\n", location);
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1853 }
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1854 return vcontext;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1855 }
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1856
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1857 static void *unused_write_b(uint32_t location, void *vcontext, uint8_t value)
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1858 {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1859 m68k_context *context = vcontext;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1860 genesis_context *gen = context->system;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1861 uint8_t has_tmss = gen->version_reg & 0xF;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1862 if (has_tmss && location >= 0xA14000 && location <= 0xA14003) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1863 uint32_t offset = location >> 1 & 1;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1864 if (location & 1) {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1865 gen->tmss_lock[offset] &= 0xFF00;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1866 gen->tmss_lock[offset] |= value;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1867 } else {
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1868 gen->tmss_lock[offset] &= 0xFF;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1869 gen->tmss_lock[offset] |= value << 8;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1870 }
2037
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
1871 check_tmss_lock(gen);
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1872 } else if (has_tmss && (location == 0xA14100 || location == 0xA14101)) {
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
1873 if (location & 1) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
1874 value &= 1;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
1875 if (gen->tmss != value) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
1876 gen->tmss = value;
2039
3b8e29ef1145 Add TMSS state to save states
Michael Pavone <pavone@retrodev.com>
parents: 2037
diff changeset
1877 toggle_tmss_rom(gen);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
1878 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
1879 }
1987
71732f2f6f42 Fix handling of unmapped reads/writes to the cart/expansion port region
Mike Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
1880 } else if (location < 0x800000 || (location >= 0xA13000 && location < 0xA13100) || (location >= 0xA12000 && location < 0xA12100)) {
71732f2f6f42 Fix handling of unmapped reads/writes to the cart/expansion port region
Mike Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
1881 //these writes are ignored when no relevant hardware is present
71732f2f6f42 Fix handling of unmapped reads/writes to the cart/expansion port region
Mike Pavone <pavone@retrodev.com>
parents: 1980
diff changeset
1882 } else {
1907
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1883 fatal_error("Machine freeze due to unmapped byte write to %X\n", location);
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1884 }
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1885 return vcontext;
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1886 }
b021ca0bc375 Some partial work on TMSS registers, more accurate open bus locations and implement machine freezes for unmapped areas in the IO region
Michael Pavone <pavone@retrodev.com>
parents: 1906
diff changeset
1887
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
1888 static void set_speed_percent(system_header * system, uint32_t percent)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1889 {
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
1890 genesis_context *context = (genesis_context *)system;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1891 uint32_t old_clock = context->master_clock;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1892 context->master_clock = ((uint64_t)context->normal_clock * (uint64_t)percent) / 100;
2486
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1893 if (context->header.type != SYSTEM_PICO && context->header.type != SYSTEM_COPERA) {
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1894 while (context->ym->current_cycle != context->psg->cycles) {
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1895 sync_sound(context, context->psg->cycles + MCLKS_PER_PSG);
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1896 }
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1897 if (context->expansion) {
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1898 segacd_context *cd = context->expansion;
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1899 segacd_set_speed_percent(cd, percent);
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1900 }
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1901 ym_adjust_master_clock(context->ym, context->master_clock);
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1902 } else {
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1903 while (context->adpcm->cycle != context->psg->cycles) {
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1904 sync_sound_pico(context, context->psg->cycles + MCLKS_PER_PSG);
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1905 }
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1906 if (context->ymz) {
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1907 ymz263b_adjust_master_clock(context->ymz, context->master_clock);
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1908 }
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
1909 pico_pcm_adjust_master_clock(context->adpcm, context->master_clock);
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
1910 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1911 psg_adjust_master_clock(context->psg, context->master_clock);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1912 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1913
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1914 void set_region(genesis_context *gen, rom_info *info, uint8_t region)
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1915 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1916 if (!region) {
1326
071e761bcdcf Fix a deficiency in the way types were handled in my ternary tree. Fixes in which some paths that were constructed from a template with variables would sometimes get an extra garbage character thrown in
Michael Pavone <pavone@retrodev.com>
parents: 1318
diff changeset
1917 char * def_region = tern_find_path_default(config, "system\0default_region\0", (tern_val){.ptrval = "U"}, TVAL_PTR).ptrval;
1204
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
1918 if (!info->regions || (info->regions & translate_region_char(toupper(*def_region)))) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1919 region = translate_region_char(toupper(*def_region));
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1920 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1921 region = info->regions;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1922 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1923 }
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1924 uint8_t is_50hz = 0;
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
1925 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1926 if (region & REGION_E) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1927 is_50hz = 1;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1928 gen->version_reg = 0x20;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1929 } else if (region & REGION_J) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1930 gen->version_reg = 0;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1931 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1932 gen->version_reg = 0x40;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1933 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1934 } else {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1935 if (region & REGION_E) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1936 gen->version_reg = NO_DISK | EUR;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1937 is_50hz = 1;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1938 } else if (region & REGION_J) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1939 gen->version_reg = NO_DISK | JAP;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1940 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1941 gen->version_reg = NO_DISK | USA;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1942 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1943 }
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
1944
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1945 if (is_50hz) {
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1946 gen->normal_clock = MCLKS_PAL;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1947 gen->soft_flush_cycles = MCLKS_LINE * 313 / 3 + 2;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1948 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1949 gen->normal_clock = MCLKS_NTSC;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1950 gen->soft_flush_cycles = MCLKS_LINE * 262 / 3 + 2;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1951 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1952 gen->master_clock = gen->normal_clock;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1953 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
1954
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1955 static uint8_t load_state(system_header *system, uint8_t slot)
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1956 {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1957 genesis_context *gen = (genesis_context *)system;
1479
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1958 char *statepath = get_slot_name(system, slot, "state");
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1959 deserialize_buffer state;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1960 uint32_t pc = 0;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1961 uint8_t ret;
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
1962 #ifndef NEW_CORE
1479
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1963 if (!gen->m68k->resume_pc) {
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1964 system->delayed_load_slot = slot + 1;
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1965 gen->m68k->should_return = 1;
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1966 ret = get_modification_time(statepath) != 0;
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1967 if (!ret) {
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1968 strcpy(statepath + strlen(statepath)-strlen("state"), "gst");
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1969 ret = get_modification_time(statepath) != 0;
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1970 }
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1971 goto done;
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1972 }
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
1973 #endif
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1974 if (load_from_file(&state, statepath)) {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1975 genesis_deserialize(&state, gen);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1976 free(state.data);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1977 ret = 1;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1978 } else {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1979 strcpy(statepath + strlen(statepath)-strlen("state"), "gst");
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1980 pc = load_gst(gen, statepath);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1981 ret = pc != 0;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1982 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1983 if (ret) {
2280
9ead0fe69d9b Implement savestate support for Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2278
diff changeset
1984 debug_message("Loaded state from %s\n", statepath);
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1985 }
1479
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1986 done:
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1987 free(statepath);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1988 return ret;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1989 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
1990
1479
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1991 static void handle_reset_requests(genesis_context *gen)
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1992 {
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1993 while (gen->reset_requested || gen->header.delayed_load_slot)
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1994 {
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1995 if (gen->reset_requested) {
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
1996 gen->reset_requested = 0;
1556
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
1997 gen->m68k->should_return = 0;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
1998 if (gen->header.type == SYSTEM_GENESIS) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
1999 z80_assert_reset(gen->z80, gen->m68k->cycles);
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2000 z80_clear_busreq(gen->z80, gen->m68k->cycles);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2001 }
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2002 if (gen->header.type != SYSTEM_PICO && gen->header.type != SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2003 ym_reset(gen->ym);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2004 }
1479
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2005 //Is there any sort of VDP reset?
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2006 m68k_reset(gen->m68k);
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2007 }
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2008 if (gen->header.delayed_load_slot) {
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2009 load_state(&gen->header, gen->header.delayed_load_slot - 1);
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2010 gen->header.delayed_load_slot = 0;
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2011 resume_68k(gen->m68k);
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2012 }
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2013 }
1980
81df9aa2de9b Less hacky run on audio thread mode
Michael Pavone <pavone@retrodev.com>
parents: 1971
diff changeset
2014 if (gen->header.force_release || render_should_release_on_exit()) {
1932
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1927
diff changeset
2015 bindings_release_capture();
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1927
diff changeset
2016 vdp_release_framebuffer(gen->vdp);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2017 if (gen->header.type != SYSTEM_PICO && gen->header.type != SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2018 render_pause_source(gen->ym->audio);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2019 }
1932
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1927
diff changeset
2020 render_pause_source(gen->psg->audio);
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1927
diff changeset
2021 }
1479
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2022 }
a568dca999b2 Fix genesis save state loading via Nuklear UI, sms probably still needs work
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
2023
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2024 static void start_genesis(system_header *system, char *statefile)
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2025 {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2026 genesis_context *gen = (genesis_context *)system;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2027 if (statefile) {
1428
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
2028 //first try loading as a native format savestate
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
2029 deserialize_buffer state;
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
2030 uint32_t pc;
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
2031 if (load_from_file(&state, statefile)) {
1427
4e5797b3935a WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents: 1420
diff changeset
2032 genesis_deserialize(&state, gen);
1428
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
2033 free(state.data);
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
2034 #ifdef NEW_CORE
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
2035 pc = gen->m68k->pc;
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
2036 #else
1427
4e5797b3935a WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents: 1420
diff changeset
2037 //HACK
4e5797b3935a WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents: 1420
diff changeset
2038 pc = gen->m68k->last_prefetch_address;
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
2039 #endif
1428
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
2040 } else {
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
2041 pc = load_gst(gen, statefile);
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
2042 if (!pc) {
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
2043 fatal_error("Failed to load save state %s\n", statefile);
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
2044 }
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2045 }
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2046 printf("Loaded %s\n", statefile);
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2047 if (gen->header.enter_debugger) {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2048 gen->header.enter_debugger = 0;
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
2049 #ifndef IS_LIB
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2050 insert_breakpoint(gen->m68k, pc, gen->header.debugger_type == DEBUGGER_NATIVE ? debugger : gdb_debug_enter);
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
2051 #endif
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2052 }
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2053 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
2054 adjust_int_cycle_pico(gen->m68k, gen->vdp);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
2055 } else {
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
2056 adjust_int_cycle(gen->m68k, gen->vdp);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
2057 }
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2058 start_68k_context(gen->m68k, pc);
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2059 } else {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2060 if (gen->header.enter_debugger) {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2061 gen->header.enter_debugger = 0;
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
2062 #ifndef IS_LIB
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2063 uint32_t address = read_word(4, (void **)gen->m68k->mem_pointers, &gen->m68k->opts->gen, gen->m68k) << 16
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2064 | read_word(6, (void **)gen->m68k->mem_pointers, &gen->m68k->opts->gen, gen->m68k);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2065 insert_breakpoint(gen->m68k, address, gen->header.debugger_type == DEBUGGER_NATIVE ? debugger : gdb_debug_enter);
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
2066 #endif
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2067 }
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2068 m68k_reset(gen->m68k);
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2069 }
2500
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
2070 #ifdef NEW_CORE
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
2071 while (!gen->m68k->should_return) {
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
2072 sync_components(gen->m68k, 0);
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
2073 m68k_execute(gen->m68k, gen->m68k->target_cycle);
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
2074 }
d44fe974fb85 Get blastem compiling with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2499
diff changeset
2075 #endif
1208
95f5253e75c7 Implement soft reset in Genesis mode
Michael Pavone <pavone@retrodev.com>
parents: 1204
diff changeset
2076 handle_reset_requests(gen);
1427
4e5797b3935a WIP - New savestate format
Michael Pavone <pavone@retrodev.com>
parents: 1420
diff changeset
2077 return;
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2078 }
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2079
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2080 static void resume_genesis(system_header *system)
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2081 {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2082 genesis_context *gen = (genesis_context *)system;
1980
81df9aa2de9b Less hacky run on audio thread mode
Michael Pavone <pavone@retrodev.com>
parents: 1971
diff changeset
2083 if (gen->header.force_release || render_should_release_on_exit()) {
81df9aa2de9b Less hacky run on audio thread mode
Michael Pavone <pavone@retrodev.com>
parents: 1971
diff changeset
2084 gen->header.force_release = 0;
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2085 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2086 render_set_video_standard((gen->version_reg & 0x60) == 0x20 ? VID_PAL : VID_NTSC);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2087 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2088 render_set_video_standard((gen->version_reg & HZ50) ? VID_PAL : VID_NTSC);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2089 }
1932
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1927
diff changeset
2090 bindings_reacquire_capture();
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1927
diff changeset
2091 vdp_reacquire_framebuffer(gen->vdp);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2092 if (gen->header.type != SYSTEM_PICO && gen->header.type != SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2093 render_resume_source(gen->ym->audio);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2094 }
1932
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1927
diff changeset
2095 render_resume_source(gen->psg->audio);
b387f1c5a1d0 WIP new sync mode that runs emulation on audio thread
Michael Pavone <pavone@retrodev.com>
parents: 1927
diff changeset
2096 }
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2097 resume_68k(gen->m68k);
1208
95f5253e75c7 Implement soft reset in Genesis mode
Michael Pavone <pavone@retrodev.com>
parents: 1204
diff changeset
2098 handle_reset_requests(gen);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2099 }
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2100
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2101 static void inc_debug_mode(system_header *system)
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2102 {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2103 genesis_context *gen = (genesis_context *)system;
1631
c4ba3177b72d WIP new VDP plane debug view and support for detached VDP debug views generally
Michael Pavone <pavone@retrodev.com>
parents: 1610
diff changeset
2104 vdp_inc_debug_mode(gen->vdp);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2105 }
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2106
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2107 static void request_exit(system_header *system)
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2108 {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2109 genesis_context *gen = (genesis_context *)system;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2110 gen->m68k->target_cycle = gen->m68k->cycles;
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2111 gen->m68k->should_return = 1;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2112 }
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2113
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2114 static void persist_save(system_header *system)
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2115 {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2116 genesis_context *gen = (genesis_context *)system;
2083
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2117 FILE *f;
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2118 if (gen->expansion) {
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2119 segacd_context *cd = gen->expansion;
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2120 char *bram_name = path_append(system->save_dir, "internal.bram");
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2121 f = fopen(bram_name, "wb");
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2122 if (f) {
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2123 fwrite(cd->bram, 1, 8 * 1024, f);
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2124 fclose(f);
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2125 printf("Saved internal BRAM to %s\n", bram_name);
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2126 }
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2127 free(bram_name);
2281
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2128 if (cd->bram_cart_id < 8) {
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2129 bram_name = path_append(system->save_dir, "cart.bram");
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2130 f = fopen(bram_name, "wb");
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2131 if (f) {
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2132 long configured_size = 0x2000 << cd->bram_cart_id;
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2133 fwrite(cd->bram_cart, 1, configured_size, f);
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2134 fclose(f);
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2135 printf("Saved BRAM cart to %s\n", bram_name);
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2136 }
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2137 free(bram_name);
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2138 }
2083
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2139 }
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2140 if (gen->save_type == SAVE_NONE) {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2141 return;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2142 }
2083
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2143 f = fopen(save_filename, "wb");
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2144 if (!f) {
1395
efa7225e0f07 Initial work to support parallel NOR flash and the Magistr 16
Michael Pavone <pavone@retrodev.com>
parents: 1377
diff changeset
2145 fprintf(stderr, "Failed to open %s file %s for writing\n", save_type_name(gen->save_type), save_filename);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2146 return;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2147 }
1848
ef3d368d59b0 16-bit wide save RAM is stored in memory byteswapped for performance reasons, but saving it to disc that way isn't great. Swap before save/after load to fix
Michael Pavone <pavone@retrodev.com>
parents: 1798
diff changeset
2148 if (gen->save_type == RAM_FLAG_BOTH) {
ef3d368d59b0 16-bit wide save RAM is stored in memory byteswapped for performance reasons, but saving it to disc that way isn't great. Swap before save/after load to fix
Michael Pavone <pavone@retrodev.com>
parents: 1798
diff changeset
2149 byteswap_rom(gen->save_size, (uint16_t *)gen->save_storage);
ef3d368d59b0 16-bit wide save RAM is stored in memory byteswapped for performance reasons, but saving it to disc that way isn't great. Swap before save/after load to fix
Michael Pavone <pavone@retrodev.com>
parents: 1798
diff changeset
2150 }
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2151 fwrite(gen->save_storage, 1, gen->save_size, f);
1848
ef3d368d59b0 16-bit wide save RAM is stored in memory byteswapped for performance reasons, but saving it to disc that way isn't great. Swap before save/after load to fix
Michael Pavone <pavone@retrodev.com>
parents: 1798
diff changeset
2152 if (gen->save_type == RAM_FLAG_BOTH) {
ef3d368d59b0 16-bit wide save RAM is stored in memory byteswapped for performance reasons, but saving it to disc that way isn't great. Swap before save/after load to fix
Michael Pavone <pavone@retrodev.com>
parents: 1798
diff changeset
2153 byteswap_rom(gen->save_size, (uint16_t *)gen->save_storage);
ef3d368d59b0 16-bit wide save RAM is stored in memory byteswapped for performance reasons, but saving it to disc that way isn't great. Swap before save/after load to fix
Michael Pavone <pavone@retrodev.com>
parents: 1798
diff changeset
2154 }
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2155 fclose(f);
1395
efa7225e0f07 Initial work to support parallel NOR flash and the Magistr 16
Michael Pavone <pavone@retrodev.com>
parents: 1377
diff changeset
2156 printf("Saved %s to %s\n", save_type_name(gen->save_type), save_filename);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2157 }
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2158
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2159 static void load_save(system_header *system)
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2160 {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2161 genesis_context *gen = (genesis_context *)system;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2162 FILE * f = fopen(save_filename, "rb");
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2163 if (f) {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2164 uint32_t read = fread(gen->save_storage, 1, gen->save_size, f);
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2165 fclose(f);
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2166 if (read > 0) {
1848
ef3d368d59b0 16-bit wide save RAM is stored in memory byteswapped for performance reasons, but saving it to disc that way isn't great. Swap before save/after load to fix
Michael Pavone <pavone@retrodev.com>
parents: 1798
diff changeset
2167 if (gen->save_type == RAM_FLAG_BOTH) {
ef3d368d59b0 16-bit wide save RAM is stored in memory byteswapped for performance reasons, but saving it to disc that way isn't great. Swap before save/after load to fix
Michael Pavone <pavone@retrodev.com>
parents: 1798
diff changeset
2168 byteswap_rom(gen->save_size, (uint16_t *)gen->save_storage);
ef3d368d59b0 16-bit wide save RAM is stored in memory byteswapped for performance reasons, but saving it to disc that way isn't great. Swap before save/after load to fix
Michael Pavone <pavone@retrodev.com>
parents: 1798
diff changeset
2169 }
1395
efa7225e0f07 Initial work to support parallel NOR flash and the Magistr 16
Michael Pavone <pavone@retrodev.com>
parents: 1377
diff changeset
2170 printf("Loaded %s from %s\n", save_type_name(gen->save_type), save_filename);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2171 }
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2172 }
2083
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2173 if (gen->expansion) {
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2174 segacd_context *cd = gen->expansion;
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2175 char *bram_name = path_append(system->save_dir, "internal.bram");
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2176 f = fopen(bram_name, "rb");
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2177 if (f) {
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2178 uint32_t read = fread(cd->bram, 1, 8 * 1024, f);
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2179 fclose(f);
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2180 if (read > 0) {
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2181 printf("Loaded internal BRAM from %s\n", bram_name);
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2182 }
2335
c05b7c5e6f11 Automatically format Sega CD backup RAM
Michael Pavone <pavone@retrodev.com>
parents: 2327
diff changeset
2183 } else {
c05b7c5e6f11 Automatically format Sega CD backup RAM
Michael Pavone <pavone@retrodev.com>
parents: 2327
diff changeset
2184 segacd_format_bram(cd->bram, 8 * 1024);
2083
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2185 }
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2186 free(bram_name);
2281
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2187 bram_name = path_append(system->save_dir, "cart.bram");
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2188 f = fopen(bram_name, "rb");
2335
c05b7c5e6f11 Automatically format Sega CD backup RAM
Michael Pavone <pavone@retrodev.com>
parents: 2327
diff changeset
2189 long configured_size = 0x2000 << cd->bram_cart_id;
2281
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2190 if (f) {
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2191 long existing_size = nearest_pow2(file_size(f));
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2192 if (existing_size > 1 * 1024 * 1024) {
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2193 existing_size = 1 * 1024 * 1024;
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2194 }
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2195 if (existing_size != configured_size) {
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2196 if (existing_size > configured_size) {
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2197 free(cd->bram_cart);
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2198 cd->bram_cart = calloc(existing_size, 1);
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2199 }
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2200 cd->bram_cart_id = 0;
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2201 while (existing_size > (0x2000 <<cd->bram_cart_id)) {
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2202 cd->bram_cart_id++;
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2203 }
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2204 }
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2205 uint32_t read = fread(cd->bram_cart, 1, existing_size, f);
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2206 fclose(f);
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2207 if (read > 0) {
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2208 printf("Loaded BRAM cart from %s\n", bram_name);
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2209 }
2335
c05b7c5e6f11 Automatically format Sega CD backup RAM
Michael Pavone <pavone@retrodev.com>
parents: 2327
diff changeset
2210 } else {
c05b7c5e6f11 Automatically format Sega CD backup RAM
Michael Pavone <pavone@retrodev.com>
parents: 2327
diff changeset
2211 segacd_format_bram(cd->bram_cart, configured_size);
2281
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2212 }
b9fed07f19e4 Implement BRAM cart support
Michael Pavone <pavone@retrodev.com>
parents: 2280
diff changeset
2213 free(bram_name);
2083
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
2214 }
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2215 }
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2216
1208
95f5253e75c7 Implement soft reset in Genesis mode
Michael Pavone <pavone@retrodev.com>
parents: 1204
diff changeset
2217 static void soft_reset(system_header *system)
95f5253e75c7 Implement soft reset in Genesis mode
Michael Pavone <pavone@retrodev.com>
parents: 1204
diff changeset
2218 {
95f5253e75c7 Implement soft reset in Genesis mode
Michael Pavone <pavone@retrodev.com>
parents: 1204
diff changeset
2219 genesis_context *gen = (genesis_context *)system;
1556
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
2220 if (gen->reset_cycle == CYCLE_NEVER) {
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
2221 double random = (double)rand()/(double)RAND_MAX;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2222 gen->reset_cycle = gen->m68k->cycles + random * MCLKS_LINE * (gen->version_reg & HZ50 ? LINES_PAL : LINES_NTSC);
1556
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
2223 if (gen->reset_cycle < gen->m68k->target_cycle) {
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
2224 gen->m68k->target_cycle = gen->reset_cycle;
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
2225 }
075df0844baa Randomize soft reset timing and fix silly bug that was accidentally clearing IO state on soft reset
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
2226 }
1208
95f5253e75c7 Implement soft reset in Genesis mode
Michael Pavone <pavone@retrodev.com>
parents: 1204
diff changeset
2227 }
95f5253e75c7 Implement soft reset in Genesis mode
Michael Pavone <pavone@retrodev.com>
parents: 1204
diff changeset
2228
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2229 static void free_genesis(system_header *system)
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2230 {
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2231 genesis_context *gen = (genesis_context *)system;
2164
4fbe1e7c4a73 Don't leak all Sega CD resources when freeing a Genesis instance
Michael Pavone <pavone@retrodev.com>
parents: 2150
diff changeset
2232 if (gen->expansion) {
4fbe1e7c4a73 Don't leak all Sega CD resources when freeing a Genesis instance
Michael Pavone <pavone@retrodev.com>
parents: 2150
diff changeset
2233 free_segacd(gen->expansion);
4fbe1e7c4a73 Don't leak all Sega CD resources when freeing a Genesis instance
Michael Pavone <pavone@retrodev.com>
parents: 2150
diff changeset
2234 }
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2235 vdp_free(gen->vdp);
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2236 memmap_chunk *map = (memmap_chunk *)gen->m68k->opts->gen.memmap;
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2237 m68k_options_free(gen->m68k->opts);
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
2238 free(gen->cart);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2239 free(gen->m68k);
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2240 free(gen->work_ram);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2241 if (gen->header.type == SYSTEM_GENESIS) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2242 z80_options_free(gen->z80->Z80_OPTS);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2243 free(gen->z80);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2244 free(gen->zram);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2245 }
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2246 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
2247 pico_pcm_free(gen->adpcm);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
2248 free(gen->adpcm);
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
2249 if (gen->ymz) {
2486
e8eba0cd5444 Implement turbo/slow for Pico and Copera
Michael Pavone <pavone@retrodev.com>
parents: 2485
diff changeset
2250 ymz263b_free(gen->ymz);
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
2251 free(gen->ymz);
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
2252 }
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
2253 } else {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2254 ym_free(gen->ym);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2255 }
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2256 psg_free(gen->psg);
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2257 free(gen->header.save_dir);
1595
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
2258 free_rom_info(&gen->header.info);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2259 free(gen->lock_on);
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2260 if (gen->save_type != SAVE_NONE && gen->mapper_type != MAPPER_SEGA_MED_V2) {
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2261 free(gen->save_storage);
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2262 }
2248
f7e2e11f1214 Fix improper free of memory map array from rom_info
Michael Pavone <pavone@retrodev.com>
parents: 2243
diff changeset
2263 free(map);
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
2264 free(gen);
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2265 }
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2266
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2267 static void gamepad_down(system_header *system, uint8_t gamepad_num, uint8_t button)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2268 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2269 genesis_context *gen = (genesis_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2270 io_gamepad_down(&gen->io, gamepad_num, button);
1610
c206a422d466 Added J-Cart support
Michael Pavone <pavone@retrodev.com>
parents: 1595
diff changeset
2271 if (gen->mapper_type == MAPPER_JCART) {
c206a422d466 Added J-Cart support
Michael Pavone <pavone@retrodev.com>
parents: 1595
diff changeset
2272 jcart_gamepad_down(gen, gamepad_num, button);
c206a422d466 Added J-Cart support
Michael Pavone <pavone@retrodev.com>
parents: 1595
diff changeset
2273 }
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2274 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2275
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2276 static void gamepad_up(system_header *system, uint8_t gamepad_num, uint8_t button)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2277 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2278 genesis_context *gen = (genesis_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2279 io_gamepad_up(&gen->io, gamepad_num, button);
1610
c206a422d466 Added J-Cart support
Michael Pavone <pavone@retrodev.com>
parents: 1595
diff changeset
2280 if (gen->mapper_type == MAPPER_JCART) {
c206a422d466 Added J-Cart support
Michael Pavone <pavone@retrodev.com>
parents: 1595
diff changeset
2281 jcart_gamepad_up(gen, gamepad_num, button);
c206a422d466 Added J-Cart support
Michael Pavone <pavone@retrodev.com>
parents: 1595
diff changeset
2282 }
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2283 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2284
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2285 static void pico_update_page(genesis_context *gen)
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2286 {
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2287 #ifndef IS_LIB
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2288 uint8_t page_num = 0;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2289 uint8_t page = gen->pico_page;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2290 while (page)
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2291 {
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2292 page_num++;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2293 page >>= 1;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2294 }
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2295 render_clear_window(gen->pico_story_window, 236, 205, 27);
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2296 int x, width;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2297 if (page_num) {
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2298 x = 0;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2299 width = 640;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2300 } else {
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2301 render_fill_rect(gen->pico_story_window, 50, 29, 96, 0, 0, 320, 320);
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2302 x = 320;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2303 width = 320;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2304 }
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2305 if (gen->pico_story_pages[page_num] == 0xFF && page_num == 6 && gen->pico_story_pages[page_num - 1]) {
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2306 //repeat last page if storybook doesn't have a full 6 pages
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2307 //hack to deal with storybooks that skip page 5
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2308 page_num--;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2309 }
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2310 if (gen->pico_story_pages[page_num] != 0xFF) {
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2311 render_draw_image(gen->pico_story_window, gen->pico_story_pages[page_num], x, 0, width, 320);
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2312 } else {
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2313 uint8_t grey = page * (255 / 5);
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2314 render_fill_rect(gen->pico_story_window, grey, grey, grey, x, 0, width, 320);
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2315 }
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2316 render_window_refresh(gen->pico_story_window);
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2317 #endif
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2318 }
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2319
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2320 static void gamepad_down_pico(system_header *system, uint8_t gamepad_num, uint8_t button)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2321 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2322 genesis_context *gen = (genesis_context *)system;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2323 if (gamepad_num != 1) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2324 return;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2325 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2326 //TODO: storyware display
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2327 if (button == BUTTON_C) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2328 gen->pico_page <<= 1;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2329 gen->pico_page |= 1;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2330 gen->pico_page &= 0x3F;
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2331 pico_update_page(gen);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2332 } else if (button == BUTTON_Z) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2333 gen->pico_page >>= 1;
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2334 pico_update_page(gen);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2335 } else if (button < BUTTON_B) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2336 gen->pico_button_state &= ~(1 << (button - 1));
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2337 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2338 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2339
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2340 static void gamepad_up_pico(system_header *system, uint8_t gamepad_num, uint8_t button)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2341 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2342 genesis_context *gen = (genesis_context *)system;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2343 if (gamepad_num != 1) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2344 return;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2345 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2346 if (button < BUTTON_B) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2347 gen->pico_button_state |= 1 << (button - 1);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2348 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2349 return;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2350 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2351
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2352 static void mouse_down(system_header *system, uint8_t mouse_num, uint8_t button)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2353 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2354 genesis_context *gen = (genesis_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2355 io_mouse_down(&gen->io, mouse_num, button);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2356 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2357
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2358 static void mouse_up(system_header *system, uint8_t mouse_num, uint8_t button)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2359 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2360 genesis_context *gen = (genesis_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2361 io_mouse_up(&gen->io, mouse_num, button);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2362 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2363
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2364 static void mouse_down_pico(system_header *system, uint8_t mouse_num, uint8_t button)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2365 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2366 genesis_context *gen = (genesis_context *)system;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2367 if (button == MOUSE_LEFT) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2368 gen->pico_button_state &= ~0x80;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2369 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2370 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2371
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2372 static void mouse_up_pico(system_header *system, uint8_t mouse_num, uint8_t button)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2373 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2374 genesis_context *gen = (genesis_context *)system;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2375 if (button == MOUSE_LEFT) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2376 gen->pico_button_state |= 0x80;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2377 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2378 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2379
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2380 static void mouse_motion_absolute(system_header *system, uint8_t mouse_num, uint16_t x, uint16_t y)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2381 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2382 genesis_context *gen = (genesis_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2383 io_mouse_motion_absolute(&gen->io, mouse_num, x, y);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2384 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2385
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2386 static void mouse_motion_relative(system_header *system, uint8_t mouse_num, int32_t x, int32_t y)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2387 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2388 genesis_context *gen = (genesis_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2389 io_mouse_motion_relative(&gen->io, mouse_num, x, y);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2390 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2391
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2392 static void mouse_motion_absolute_pico(system_header *system, uint8_t mouse_num, uint16_t x, uint16_t y)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2393 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2394 genesis_context *gen = (genesis_context *)system;
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2395 //FIXME: coordinate translation feels a little off for storybook area
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2396 //TODO: limit to mouse motion on emulated storyware/drawing area
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2397 if (y < 24) {
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2398 y = 24;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2399 }
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2400 gen->pico_pen_x = x * (0x17D - 0x3C) / 640 + 0x3C;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2401 if (y < 320) {
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2402 gen->pico_pen_y = (y-24) * (0x3F4-0x2F8) / (320-24) + 0x2F8;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2403 } else {
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2404 gen->pico_pen_y = (y - 320) * (0x2f8-0x1FC) / 320 + 0x1FC;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
2405 }
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2406 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2407
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2408 static void mouse_motion_relative_pico(system_header *system, uint8_t mouse_num, int32_t x, int32_t y)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2409 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2410 genesis_context *gen = (genesis_context *)system;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2411 //TODO: scale properly
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2412 //TODO: limit to mouse motion on emulated storyware/drawing area
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2413 gen->pico_pen_x += x;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2414 gen->pico_pen_y += y;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2415 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2416
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2417 static void keyboard_down(system_header *system, uint8_t scancode)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2418 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2419 genesis_context *gen = (genesis_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2420 io_keyboard_down(&gen->io, scancode);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2421 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2422
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2423 static void keyboard_up(system_header *system, uint8_t scancode)
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2424 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2425 genesis_context *gen = (genesis_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2426 io_keyboard_up(&gen->io, scancode);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2427 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2428
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2429 static void keyboard_down_pico(system_header *system, uint8_t scancode)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2430 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2431 genesis_context *gen = (genesis_context *)system;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2432 //TODO: Keyboard Pico emulation
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2433 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2434
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2435 static void keyboard_up_pico(system_header *system, uint8_t scancode)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2436 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2437 genesis_context *gen = (genesis_context *)system;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2438 //TODO: Keyboard Pico emulation
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2439 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2440
1798
5278b6e44fc1 Optionally emulate the offset around zero in the imperfect DAC of a discrete YM2612
Michael Pavone <pavone@retrodev.com>
parents: 1796
diff changeset
2441 static void set_audio_config(genesis_context *gen)
1796
51417bb557b6 Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents: 1766
diff changeset
2442 {
51417bb557b6 Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents: 1766
diff changeset
2443 char *config_gain;
51417bb557b6 Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents: 1766
diff changeset
2444 config_gain = tern_find_path(config, "audio\0psg_gain\0", TVAL_PTR).ptrval;
51417bb557b6 Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents: 1766
diff changeset
2445 render_audio_source_gaindb(gen->psg->audio, config_gain ? atof(config_gain) : 0.0f);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2446 if (gen->header.type != SYSTEM_PICO && gen->header.type != SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2447 config_gain = tern_find_path(config, "audio\0fm_gain\0", TVAL_PTR).ptrval;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2448 render_audio_source_gaindb(gen->ym->audio, config_gain ? atof(config_gain) : 0.0f);
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2449
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2450 char *config_dac = tern_find_path_default(config, "audio\0fm_dac\0", (tern_val){.ptrval="zero_offset"}, TVAL_PTR).ptrval;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2451 ym_enable_zero_offset(gen->ym, !strcmp(config_dac, "zero_offset"));
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2452 }
2277
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
2453
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
2454 if (gen->expansion) {
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
2455 segacd_context *cd = gen->expansion;
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
2456 config_gain = tern_find_path(config, "audio\0rf5c164_gain\0", TVAL_PTR).ptrval;
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
2457 render_audio_source_gaindb(cd->pcm.audio, config_gain ? atof(config_gain) : -6.0f);
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
2458 config_gain = tern_find_path(config, "audio\0cdda_gain\0", TVAL_PTR).ptrval;
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
2459 render_audio_source_gaindb(cd->fader.audio, config_gain ? atof(config_gain) : -9.5f);
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
2460 }
1796
51417bb557b6 Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents: 1766
diff changeset
2461 }
51417bb557b6 Configurable gain for overall output and individual components
Michael Pavone <pavone@retrodev.com>
parents: 1766
diff changeset
2462
1595
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
2463 static void config_updated(system_header *system)
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
2464 {
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
2465 genesis_context *gen = (genesis_context *)system;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2466 if (gen->header.type == SYSTEM_GENESIS) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2467 setup_io_devices(config, &system->info, &gen->io);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2468 }
1798
5278b6e44fc1 Optionally emulate the offset around zero in the imperfect DAC of a discrete YM2612
Michael Pavone <pavone@retrodev.com>
parents: 1796
diff changeset
2469 set_audio_config(gen);
2384
03e6ac327ba0 Handle changes to sample rate while content is running
Michael Pavone <pavone@retrodev.com>
parents: 2354
diff changeset
2470 //sample rate may have changed
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2471 if (gen->header.type != SYSTEM_PICO && gen->header.type != SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2472 ym_adjust_master_clock(gen->ym, gen->master_clock);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2473 }
2384
03e6ac327ba0 Handle changes to sample rate while content is running
Michael Pavone <pavone@retrodev.com>
parents: 2354
diff changeset
2474 psg_adjust_master_clock(gen->psg, gen->master_clock);
03e6ac327ba0 Handle changes to sample rate while content is running
Michael Pavone <pavone@retrodev.com>
parents: 2354
diff changeset
2475 if (gen->expansion) {
03e6ac327ba0 Handle changes to sample rate while content is running
Michael Pavone <pavone@retrodev.com>
parents: 2354
diff changeset
2476 segacd_config_updated(gen->expansion);
03e6ac327ba0 Handle changes to sample rate while content is running
Michael Pavone <pavone@retrodev.com>
parents: 2354
diff changeset
2477 }
1595
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
2478 }
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
2479
1909
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2480 static void start_vgm_log(system_header *system, char *filename)
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2481 {
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2482 genesis_context *gen = (genesis_context *)system;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2483 vgm_writer *vgm = vgm_write_open(filename, gen->version_reg & HZ50 ? 50 : 60, gen->normal_clock, gen->m68k->cycles);
1909
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2484 if (vgm) {
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2485 printf("Started logging VGM to %s\n", filename);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2486 if (gen->header.type != SYSTEM_PICO && gen->header.type != SYSTEM_COPERA) {
2488
bfd09d3367ba Fix crash when enabling VGM recording while running Pico or Copera software
Michael Pavone <pavone@retrodev.com>
parents: 2486
diff changeset
2487 sync_sound(gen, vgm->last_cycle);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2488 ym_vgm_log(gen->ym, gen->normal_clock, vgm);
2488
bfd09d3367ba Fix crash when enabling VGM recording while running Pico or Copera software
Michael Pavone <pavone@retrodev.com>
parents: 2486
diff changeset
2489 } else {
bfd09d3367ba Fix crash when enabling VGM recording while running Pico or Copera software
Michael Pavone <pavone@retrodev.com>
parents: 2486
diff changeset
2490 sync_sound_pico(gen, vgm->last_cycle);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2491 }
2254
8b88d57d1218 Prevent VGM logging from getting messed up if slow/turbo is active at log start time
Michael Pavone <pavone@retrodev.com>
parents: 2248
diff changeset
2492 psg_vgm_log(gen->psg, gen->normal_clock, vgm);
1909
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2493 gen->header.vgm_logging = 1;
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2494 } else {
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2495 printf("Failed to start logging to %s\n", filename);
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2496 }
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2497 }
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2498
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2499 static void stop_vgm_log(system_header *system)
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2500 {
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2501 puts("Stopped VGM log");
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2502 genesis_context *gen = (genesis_context *)system;
2488
bfd09d3367ba Fix crash when enabling VGM recording while running Pico or Copera software
Michael Pavone <pavone@retrodev.com>
parents: 2486
diff changeset
2503 vgm_close(gen->psg->vgm);
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2504 if (gen->header.type != SYSTEM_PICO && gen->header.type != SYSTEM_COPERA) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2505 gen->ym->vgm = NULL;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2506 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2507 gen->psg->vgm = NULL;
1909
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2508 gen->header.vgm_logging = 0;
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2509 }
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2510
2243
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2511 static void toggle_debug_view(system_header *system, uint8_t debug_view)
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2512 {
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
2513 #ifndef IS_LIB
2243
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2514 genesis_context *gen = (genesis_context *)system;
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2515 if (debug_view < DEBUG_OSCILLOSCOPE) {
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2516 vdp_toggle_debug_view(gen->vdp, debug_view);
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2517 } else if (debug_view == DEBUG_OSCILLOSCOPE) {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2518 if (gen->psg->scope) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2519 oscilloscope *scope = gen->psg->scope;
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2520 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
2521 gen->adpcm->scope = NULL;
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
2522 } else {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2523 gen->ym->scope = NULL;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2524 }
2243
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2525 gen->psg->scope = NULL;
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2526 if (gen->expansion) {
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2527 segacd_context *cd = gen->expansion;
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2528 cd->pcm.scope = NULL;
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2529 }
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2530 scope_close(scope);
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2531 } else {
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2532 oscilloscope *scope = create_oscilloscope();
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
2533 if (gen->header.type == SYSTEM_PICO || gen->header.type == SYSTEM_COPERA) {
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
2534 pico_pcm_enable_scope(gen->adpcm, scope, gen->normal_clock);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
2535 } else {
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2536 ym_enable_scope(gen->ym, scope, gen->normal_clock);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
2537 }
2255
74112041b2c7 Proper calculation of sample rate for YM2612/PSG oscilloscope view
Michael Pavone <pavone@retrodev.com>
parents: 2254
diff changeset
2538 psg_enable_scope(gen->psg, scope, gen->normal_clock);
2243
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2539 if (gen->expansion) {
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2540 segacd_context *cd = gen->expansion;
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2541 rf5c164_enable_scope(&cd->pcm, scope);
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2542 }
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2543 }
2271
3ef80963c2a7 Fix stamp address mask and add WIP CD graphics debug view
Michael Pavone <pavone@retrodev.com>
parents: 2267
diff changeset
2544 } else if (debug_view == DEBUG_CD_GRAPHICS && gen->expansion) {
3ef80963c2a7 Fix stamp address mask and add WIP CD graphics debug view
Michael Pavone <pavone@retrodev.com>
parents: 2267
diff changeset
2545 scd_toggle_graphics_debug(gen->expansion);
2243
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2546 }
2302
0343f0d5add0 Fix libretro build for real
Michael Pavone <pavone@retrodev.com>
parents: 2286
diff changeset
2547 #endif
2243
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2548 }
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2549
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2550 static void *tmss_rom_write_16(uint32_t address, void *context, uint16_t value)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2551 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2552 m68k_context *m68k = context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2553 genesis_context *gen = m68k->system;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2554 if (gen->tmss) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2555 return gen->tmss_write_16(address, context, value);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2556 }
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2557
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2558 return context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2559 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2560
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2561 static void *tmss_rom_write_8(uint32_t address, void *context, uint8_t value)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2562 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2563 m68k_context *m68k = context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2564 genesis_context *gen = m68k->system;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2565 if (gen->tmss) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2566 return gen->tmss_write_8(address, context, value);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2567 }
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2568
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2569 return context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2570 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2571
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2572 static uint16_t tmss_rom_read_16(uint32_t address, void *context)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2573 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2574 m68k_context *m68k = context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2575 genesis_context *gen = m68k->system;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2576 if (gen->tmss) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2577 return gen->tmss_read_16(address, context);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2578 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2579 return ((uint16_t *)gen->tmss_buffer)[address >> 1];
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2580 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2581
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2582 static uint8_t tmss_rom_read_8(uint32_t address, void *context)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2583 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2584 m68k_context *m68k = context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2585 genesis_context *gen = m68k->system;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2586 if (gen->tmss) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2587 return gen->tmss_read_8(address, context);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2588 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2589 #ifdef BLASTEM_BIG_ENDIAN
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2590 return gen->tmss_buffer[address];
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2591 #else
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2592 return gen->tmss_buffer[address ^ 1];
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2593 #endif
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2594 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2595
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2596 static void *tmss_word_write_16(uint32_t address, void *context, uint16_t value)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2597 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2598 m68k_context *m68k = context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2599 genesis_context *gen = m68k->system;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2600 if (gen->tmss) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2601 address += gen->tmss_write_offset;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2602 uint16_t *dest = get_native_pointer(address, (void **)m68k->mem_pointers, &m68k->opts->gen);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2603 *dest = value;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2604 m68k_handle_code_write(address, m68k);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2605 }
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2606
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2607 return context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2608 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2609
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2610 static void *tmss_word_write_8(uint32_t address, void *context, uint8_t value)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2611 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2612 m68k_context *m68k = context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2613 genesis_context *gen = m68k->system;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2614 if (gen->tmss) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2615 address += gen->tmss_write_offset;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2616 uint8_t *dest = get_native_pointer(address & ~1, (void **)m68k->mem_pointers, &m68k->opts->gen);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2617 #ifdef BLASTEM_BIG_ENDIAN
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2618 dest[address & 1] = value;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2619 #else
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2620 dest[address & 1 ^ 1] = value;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2621 #endif
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2622 m68k_handle_code_write(address & ~1, m68k);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2623 }
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2624
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2625 return context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2626 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2627
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2628 static void *tmss_odd_write_16(uint32_t address, void *context, uint16_t value)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2629 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2630 m68k_context *m68k = context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2631 genesis_context *gen = m68k->system;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2632 if (gen->tmss) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2633 memmap_chunk const *chunk = find_map_chunk(address + gen->tmss_write_offset, &m68k->opts->gen, 0, NULL);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2634 address >>= 1;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2635 uint8_t *base = (uint8_t *)m68k->mem_pointers[chunk->ptr_index];
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2636 base[address] = value;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2637 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2638 return context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2639 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2640
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2641 static void *tmss_odd_write_8(uint32_t address, void *context, uint8_t value)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2642 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2643 m68k_context *m68k = context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2644 genesis_context *gen = m68k->system;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2645 if (gen->tmss && (address & 1)) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2646 memmap_chunk const *chunk = find_map_chunk(address + gen->tmss_write_offset, &m68k->opts->gen, 0, NULL);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2647 address >>= 1;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2648 uint8_t *base = (uint8_t *)m68k->mem_pointers[chunk->ptr_index];
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2649 base[address] = value;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2650 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2651 return context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2652 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2653
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2654 static void *tmss_even_write_16(uint32_t address, void *context, uint16_t value)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2655 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2656 m68k_context *m68k = context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2657 genesis_context *gen = m68k->system;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2658 if (gen->tmss) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2659 memmap_chunk const *chunk = find_map_chunk(address + gen->tmss_write_offset, &m68k->opts->gen, 0, NULL);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2660 address >>= 1;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2661 uint8_t *base = (uint8_t *)m68k->mem_pointers[chunk->ptr_index];
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2662 base[address] = value >> 8;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2663 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2664 return context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2665 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2666
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2667 static void *tmss_even_write_8(uint32_t address, void *context, uint8_t value)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2668 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2669 m68k_context *m68k = context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2670 genesis_context *gen = m68k->system;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2671 if (gen->tmss && !(address & 1)) {
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
2672 memmap_chunk const *chunk = find_map_chunk(address + gen->tmss_write_offset, &m68k->opts->gen, 0, NULL);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2673 address >>= 1;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2674 uint8_t *base = (uint8_t *)m68k->mem_pointers[chunk->ptr_index];
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2675 base[address] = value;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2676 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2677 return context;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2678 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2679
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2680 static genesis_context *shared_init(uint32_t system_opts, rom_info *rom, uint8_t force_region)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2681 {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2682 static memmap_chunk z80_map[] = {
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2683 { 0x0000, 0x4000, 0x1FFF, .flags = MMAP_READ | MMAP_WRITE | MMAP_CODE},
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2684 { 0x8000, 0x10000, 0x7FFF, .read_8 = z80_read_bank, .write_8 = z80_write_bank},
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2685 { 0x4000, 0x6000, 0x0003, .read_8 = z80_read_ym, .write_8 = z80_write_ym},
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2686 { 0x6000, 0x6100, 0xFFFF, .write_8 = z80_write_bank_reg},
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2687 { 0x7F00, 0x8000, 0x00FF, .read_8 = z80_vdp_port_read, .write_8 = z80_vdp_port_write}
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2688 };
2053
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
2689
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2690 char *m68k_divider = tern_find_path(config, "clocks\0m68k_divider\0", TVAL_PTR).ptrval;
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2691 if (!m68k_divider) {
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2692 m68k_divider = "7";
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2693 }
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2694 MCLKS_PER_68K = atoi(m68k_divider);
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2695 if (!MCLKS_PER_68K) {
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2696 MCLKS_PER_68K = 7;
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2697 }
2053
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
2698
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2699 genesis_context *gen = calloc(1, sizeof(genesis_context));
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2700 gen->header.set_speed_percent = set_speed_percent;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2701 gen->header.start_context = start_genesis;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2702 gen->header.resume_context = resume_genesis;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2703 gen->header.load_save = load_save;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2704 gen->header.persist_save = persist_save;
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1428
diff changeset
2705 gen->header.load_state = load_state;
1208
95f5253e75c7 Implement soft reset in Genesis mode
Michael Pavone <pavone@retrodev.com>
parents: 1204
diff changeset
2706 gen->header.soft_reset = soft_reset;
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2707 gen->header.free_context = free_genesis;
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents: 1116
diff changeset
2708 gen->header.get_open_bus_value = get_open_bus_value;
1111
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2709 gen->header.request_exit = request_exit;
2eb54e24914e Mostly working changes to allow support for multiple emulated system types in main blastem program
Michael Pavone <pavone@retrodev.com>
parents: 1108
diff changeset
2710 gen->header.inc_debug_mode = inc_debug_mode;
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2711 gen->header.gamepad_down = gamepad_down;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2712 gen->header.gamepad_up = gamepad_up;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2713 gen->header.mouse_down = mouse_down;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2714 gen->header.mouse_up = mouse_up;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2715 gen->header.mouse_motion_absolute = mouse_motion_absolute;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2716 gen->header.mouse_motion_relative = mouse_motion_relative;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2717 gen->header.keyboard_down = keyboard_down;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2718 gen->header.keyboard_up = keyboard_up;
1595
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
2719 gen->header.config_updated = config_updated;
1690
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
2720 gen->header.serialize = serialize;
319d90025d50 Implement serialization/deserialization in libretro build
Mike Pavone <pavone@retrodev.com>
parents: 1688
diff changeset
2721 gen->header.deserialize = deserialize;
1909
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2722 gen->header.start_vgm_log = start_vgm_log;
508522f08e4d Initial stab at VGM logging support
Michael Pavone <pavone@retrodev.com>
parents: 1907
diff changeset
2723 gen->header.stop_vgm_log = stop_vgm_log;
2243
0d1d5dccdd28 Initial implementation of oscilloscope debug view
Michael Pavone <pavone@retrodev.com>
parents: 2228
diff changeset
2724 gen->header.toggle_debug_view = toggle_debug_view;
1377
e587f16e7d3d Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents: 1374
diff changeset
2725 gen->header.type = SYSTEM_GENESIS;
1595
360d5bab199f Update controller config when changed in UI without restart
Michael Pavone <pavone@retrodev.com>
parents: 1593
diff changeset
2726 gen->header.info = *rom;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2727 set_region(gen, rom, force_region);
1901
5433252329fb Set version reg and TAS behavior based on model config
Michael Pavone <pavone@retrodev.com>
parents: 1889
diff changeset
2728 tern_node *model = get_model(config, SYSTEM_GENESIS);
5433252329fb Set version reg and TAS behavior based on model config
Michael Pavone <pavone@retrodev.com>
parents: 1889
diff changeset
2729 uint8_t tmss = !strcmp(tern_find_ptr_default(model, "tmss", "off"), "on");
5433252329fb Set version reg and TAS behavior based on model config
Michael Pavone <pavone@retrodev.com>
parents: 1889
diff changeset
2730 if (tmss) {
5433252329fb Set version reg and TAS behavior based on model config
Michael Pavone <pavone@retrodev.com>
parents: 1889
diff changeset
2731 gen->version_reg |= 1;
2037
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
2732 } else {
b0b0c31338c3 Implement TMSS VDP lock
Michael Pavone <pavone@retrodev.com>
parents: 2034
diff changeset
2733 gen->vdp_unlocked = 1;
1901
5433252329fb Set version reg and TAS behavior based on model config
Michael Pavone <pavone@retrodev.com>
parents: 1889
diff changeset
2734 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2735
1906
2d462aa78349 Make VDP VSRAM capacity respect model selection
Michael Pavone <pavone@retrodev.com>
parents: 1904
diff changeset
2736 uint8_t max_vsram = !strcmp(tern_find_ptr_default(model, "vsram", "40"), "64");
2194
01ff005b08f6 Very rudimentary support for Game Gear VDP emulation
Michael Pavone <pavone@retrodev.com>
parents: 2184
diff changeset
2737 gen->vdp = init_vdp_context(gen->version_reg & 0x40, max_vsram, VDP_GENESIS);
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents: 1116
diff changeset
2738 gen->vdp->system = &gen->header;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2739 gen->frame_end = vdp_cycles_to_frame_end(gen->vdp);
1326
071e761bcdcf Fix a deficiency in the way types were handled in my ternary tree. Fixes in which some paths that were constructed from a template with variables would sometimes get an extra garbage character thrown in
Michael Pavone <pavone@retrodev.com>
parents: 1318
diff changeset
2740 char * config_cycles = tern_find_path(config, "clocks\0max_cycles\0", TVAL_PTR).ptrval;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2741 gen->max_cycles = config_cycles ? atoi(config_cycles) : DEFAULT_SYNC_INTERVAL;
1364
30123ca5856c Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents: 1348
diff changeset
2742 gen->int_latency_prev1 = MCLKS_PER_68K * 32;
30123ca5856c Added some code to try and prevent Z80 accesses and refresh cycles from screwing up interrupt latency more than on hardware
Michael Pavone <pavone@retrodev.com>
parents: 1348
diff changeset
2743 gen->int_latency_prev2 = MCLKS_PER_68K * 16;
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2744
1565
61fafcbc2c38 Audio DRC now sounds good in both NTSC and PAL, just need to adjust constants to minimize latency without leading to dropouts
Michael Pavone <pavone@retrodev.com>
parents: 1557
diff changeset
2745 render_set_video_standard((gen->version_reg & HZ50) ? VID_PAL : VID_NTSC);
1946
c3c62dbf1ceb WIP netplay support
Michael Pavone <pavone@retrodev.com>
parents: 1932
diff changeset
2746 event_system_start(SYSTEM_GENESIS, (gen->version_reg & HZ50) ? VID_PAL : VID_NTSC, rom->name);
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2747
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2748 gen->ym = malloc(sizeof(ym2612_context));
1904
8312e574100a Implement selectable YM2612/YM3834 invalid status port behavior
Michael Pavone <pavone@retrodev.com>
parents: 1902
diff changeset
2749 char *fm = tern_find_ptr_default(model, "fm", "discrete 2612");
8312e574100a Implement selectable YM2612/YM3834 invalid status port behavior
Michael Pavone <pavone@retrodev.com>
parents: 1902
diff changeset
2750 if (!strcmp(fm + strlen(fm) -4, "3834")) {
8312e574100a Implement selectable YM2612/YM3834 invalid status port behavior
Michael Pavone <pavone@retrodev.com>
parents: 1902
diff changeset
2751 system_opts |= YM_OPT_3834;
8312e574100a Implement selectable YM2612/YM3834 invalid status port behavior
Michael Pavone <pavone@retrodev.com>
parents: 1902
diff changeset
2752 }
1555
6ce36c3f250b More audio refactoring in preparation for allowing proper sync to video with dynamic audio rate control
Michael Pavone <pavone@retrodev.com>
parents: 1551
diff changeset
2753 ym_init(gen->ym, gen->master_clock, MCLKS_PER_YM, system_opts);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2754
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2755 gen->psg = malloc(sizeof(psg_context));
1555
6ce36c3f250b More audio refactoring in preparation for allowing proper sync to video with dynamic audio rate control
Michael Pavone <pavone@retrodev.com>
parents: 1551
diff changeset
2756 psg_init(gen->psg, gen->master_clock, MCLKS_PER_PSG);
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2757
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2758 z80_map[0].buffer = gen->zram = calloc(1, Z80_RAM_BYTES);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2759 #ifndef NO_Z80
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2760 z80_options *z_opts = malloc(sizeof(z80_options));
1116
fe8c79f82c22 More cleanup in preparation for SMS/Mark III support
Michael Pavone <pavone@retrodev.com>
parents: 1113
diff changeset
2761 init_z80_opts(z_opts, z80_map, 5, NULL, 0, MCLKS_PER_Z80, 0xFFFF);
1130
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1117
diff changeset
2762 gen->z80 = init_z80_context(z_opts);
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
2763 #ifndef NEW_CORE
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents: 1116
diff changeset
2764 gen->z80->next_int_pulse = z80_next_int_pulse;
1752
d6d4c006a7b3 Initial attempt at interrupts in new Z80 core and integrating it into main executable
Michael Pavone <pavone@retrodev.com>
parents: 1690
diff changeset
2765 #endif
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2766 z80_assert_reset(gen->z80, 0);
1130
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1117
diff changeset
2767 #else
8f14767661fa Remove memory map assumptions from Z80 core and move a little bit of logic to the generic backend.c so it can be shared between CPU cores
Michael Pavone <pavone@retrodev.com>
parents: 1117
diff changeset
2768 gen->z80 = calloc(1, sizeof(z80_context));
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2769 #endif
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2770
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2771 gen->z80->system = gen;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2772 gen->z80->mem_pointers[0] = gen->zram;
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2773 gen->z80->mem_pointers[1] = gen->z80->mem_pointers[2] = NULL;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2774
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2775 gen->work_ram = calloc(2, RAM_WORDS);
1326
071e761bcdcf Fix a deficiency in the way types were handled in my ternary tree. Fixes in which some paths that were constructed from a template with variables would sometimes get an extra garbage character thrown in
Michael Pavone <pavone@retrodev.com>
parents: 1318
diff changeset
2776 if (!strcmp("random", tern_find_path_default(config, "system\0ram_init\0", (tern_val){.ptrval = "zero"}, TVAL_PTR).ptrval))
1204
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2777 {
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2778 srand(time(NULL));
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2779 for (int i = 0; i < RAM_WORDS; i++)
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2780 {
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2781 gen->work_ram[i] = rand();
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2782 }
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2783 for (int i = 0; i < Z80_RAM_BYTES; i++)
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2784 {
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2785 gen->zram[i] = rand();
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2786 }
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2787 for (int i = 0; i < VRAM_SIZE; i++)
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2788 {
1333
69c25e1188e5 Small tweak to how SAT cache updates are done. Mostly fixes the rotating cube scene in Overdrive 2
Michael Pavone <pavone@retrodev.com>
parents: 1326
diff changeset
2789 gen->vdp->vdpmem[i] = rand();
69c25e1188e5 Small tweak to how SAT cache updates are done. Mostly fixes the rotating cube scene in Overdrive 2
Michael Pavone <pavone@retrodev.com>
parents: 1326
diff changeset
2790 }
69c25e1188e5 Small tweak to how SAT cache updates are done. Mostly fixes the rotating cube scene in Overdrive 2
Michael Pavone <pavone@retrodev.com>
parents: 1326
diff changeset
2791 for (int i = 0; i < SAT_CACHE_SIZE; i++)
69c25e1188e5 Small tweak to how SAT cache updates are done. Mostly fixes the rotating cube scene in Overdrive 2
Michael Pavone <pavone@retrodev.com>
parents: 1326
diff changeset
2792 {
69c25e1188e5 Small tweak to how SAT cache updates are done. Mostly fixes the rotating cube scene in Overdrive 2
Michael Pavone <pavone@retrodev.com>
parents: 1326
diff changeset
2793 gen->vdp->sat_cache[i] = rand();
1204
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2794 }
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2795 for (int i = 0; i < CRAM_SIZE; i++)
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2796 {
1428
2540c05520f2 New savestates are working. New config file option for selecting format states will be saved in. Mostly complete, needs a little more work before release
Michael Pavone <pavone@retrodev.com>
parents: 1427
diff changeset
2797 write_cram_internal(gen->vdp, i, rand());
1204
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2798 }
1906
2d462aa78349 Make VDP VSRAM capacity respect model selection
Michael Pavone <pavone@retrodev.com>
parents: 1904
diff changeset
2799 for (int i = 0; i < gen->vdp->vsram_size; i++)
1204
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2800 {
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2801 gen->vdp->vsram[i] = rand();
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2802 }
d7be5b6e0a8d Added config file option to specify that RAM should be randomly initialized. Moved default_region inside a new "system" parent node in config
Michael Pavone <pavone@retrodev.com>
parents: 1188
diff changeset
2803 }
2053
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
2804
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2805 return gen;
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2806 }
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2807
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2808 static memmap_chunk base_map[] = {
2134
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2809 {0xE00000, 0x1000000, 0xFFFF, .flags = MMAP_READ | MMAP_WRITE | MMAP_CODE},
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2810 {0xC00000, 0xE00000, 0x1FFFFF, .read_16 = (read_16_fun)vdp_port_read, .write_16 =(write_16_fun)vdp_port_write,
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2811 .read_8 = (read_8_fun)vdp_port_read_b, .write_8 = (write_8_fun)vdp_port_write_b},
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2812 {0xA00000, 0xA12000, 0x1FFFF, .read_16 = (read_16_fun)io_read_w, .write_16 = (write_16_fun)io_write_w,
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2813 .read_8 = (read_8_fun)io_read, .write_8 = (write_8_fun)io_write},
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2814 {0x000000, 0xFFFFFF, 0xFFFFFF, .read_16 = (read_16_fun)unused_read, .write_16 = unused_write,
9caebcfeac72 Implement word RAM interleaving in 1M mode, now passes mcd-verificator word RAM tests
Michael Pavone <pavone@retrodev.com>
parents: 2090
diff changeset
2815 .read_8 = (read_8_fun)unused_read_b, .write_8 = (write_8_fun)unused_write_b}
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2816 };
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2817 const size_t base_chunks = sizeof(base_map)/sizeof(*base_map);
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2818
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2819 genesis_context *alloc_config_genesis(void *rom, uint32_t rom_size, void *lock_on, uint32_t lock_on_size, uint32_t ym_opts, uint8_t force_region)
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2820 {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2821 tern_node *rom_db = get_rom_db();
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2822 rom_info info = configure_rom(rom_db, rom, rom_size, lock_on, lock_on_size, base_map, base_chunks);
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2823 rom = info.rom;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2824 rom_size = info.rom_size;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2825 #ifndef BLASTEM_BIG_ENDIAN
2150
a418fa599b2e Add ROM DB entry to fix SRAM on Triple Play: Gold Edition and make some code changes so that 3MB dumps will work too
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
2826 byteswap_rom(nearest_pow2(rom_size), rom);
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2827 if (lock_on) {
2150
a418fa599b2e Add ROM DB entry to fix SRAM on Triple Play: Gold Edition and make some code changes so that 3MB dumps will work too
Michael Pavone <pavone@retrodev.com>
parents: 2134
diff changeset
2828 byteswap_rom(nearest_pow2(lock_on_size), lock_on);
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2829 }
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2830 #endif
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2831 char *m68k_divider = tern_find_path(config, "clocks\0m68k_divider\0", TVAL_PTR).ptrval;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2832 if (!m68k_divider) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2833 m68k_divider = "7";
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2834 }
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2835 MCLKS_PER_68K = atoi(m68k_divider);
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2836 if (!MCLKS_PER_68K) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2837 MCLKS_PER_68K = 7;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2838 }
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2839 genesis_context *gen = shared_init(ym_opts, &info, force_region);
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2840 gen->z80->mem_pointers[1] = gen->z80->mem_pointers[2] = rom;
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2841
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2842 gen->cart = rom;
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
2843 gen->lock_on = lock_on;
2053
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
2844
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2845 setup_io_devices(config, &info, &gen->io);
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1576
diff changeset
2846 gen->header.has_keyboard = io_has_keyboard(&gen->io);
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2847 gen->mapper_type = info.mapper_type;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2848 gen->save_type = info.save_type;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2849 if (gen->save_type != SAVE_NONE) {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2850 gen->save_ram_mask = info.save_mask;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2851 gen->save_size = info.save_size;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2852 gen->save_storage = info.save_buffer;
2286
5d3411f52d00 Fix ui.reload for locked-on ROMs
Michael Pavone <pavone@retrodev.com>
parents: 2281
diff changeset
2853 gen->header.info.save_buffer = info.save_buffer = NULL;
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2854 gen->eeprom_map = info.eeprom_map;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2855 gen->num_eeprom = info.num_eeprom;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2856 if (gen->save_type == SAVE_I2C) {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2857 eeprom_init(&gen->eeprom, gen->save_storage, gen->save_size);
1395
efa7225e0f07 Initial work to support parallel NOR flash and the Magistr 16
Michael Pavone <pavone@retrodev.com>
parents: 1377
diff changeset
2858 } else if (gen->save_type == SAVE_NOR) {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2859 memcpy(&gen->nor, info.nor, sizeof(gen->nor));
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2860 //nor_flash_init(&gen->nor, gen->save_storage, gen->save_size, info.save_page_size, info.save_product_id, info.save_bus);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2861 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2862 } else {
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2863 gen->save_storage = NULL;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2864 }
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2865
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2866 gen->mapper_start_index = info.mapper_start_index;
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
2867
2053
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
2868 tern_node *model = get_model(config, SYSTEM_GENESIS);
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
2869 uint8_t tmss = !strcmp(tern_find_ptr_default(model, "tmss", "off"), "on");
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
2870
1165
9fc680b35dbb Fix crash regression for games with some kind of mapper functionality
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
2871 //This must happen before we generate memory access functions in init_m68k_opts
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2872 uint8_t next_ptr_index = 0;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2873 uint32_t tmss_min_alloc = 16 * 1024;
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2874 for (int i = 0; i < info.map_chunks; i++)
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2875 {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2876 if (info.map[i].start == 0xE00000) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2877 info.map[i].buffer = gen->work_ram;
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2878 if (!tmss) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2879 break;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2880 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2881 }
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2882 if (info.map[i].flags & MMAP_PTR_IDX && info.map[i].ptr_index >= next_ptr_index) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2883 next_ptr_index = info.map[i].ptr_index + 1;
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2884 }
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2885 if (info.map[i].start < 0x400000 && info.map[i].read_16 != unused_read) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2886 uint32_t highest_offset = (info.map[i].end & info.map[i].mask) + 1;
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2887 if (highest_offset > tmss_min_alloc) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2888 tmss_min_alloc = highest_offset;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2889 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2890 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2891 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2892 if (tmss) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2893 char *tmss_path = tern_find_path_default(config, "system\0tmss_path\0", (tern_val){.ptrval = "tmss.md"}, TVAL_PTR).ptrval;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2894 uint8_t *buffer = malloc(tmss_min_alloc);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2895 uint32_t tmss_size;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2896 if (is_absolute_path(tmss_path)) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2897 FILE *f = fopen(tmss_path, "rb");
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2898 if (!f) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2899 fatal_error("Configured to use a model with TMSS, but failed to load the TMSS ROM from %s\n", tmss_path);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2900 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2901 tmss_size = fread(buffer, 1, tmss_min_alloc, f);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2902 fclose(f);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2903 } else {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2904 char *tmp = read_bundled_file(tmss_path, &tmss_size);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2905 if (!tmp) {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2906 fatal_error("Configured to use a model with TMSS, but failed to load the TMSS ROM from %s\n", tmss_path);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2907 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2908 memcpy(buffer, tmp, tmss_size);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2909 free(tmp);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2910 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2911 for (uint32_t padded = nearest_pow2(tmss_size); tmss_size < padded; tmss_size++)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2912 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2913 buffer[tmss_size] = 0xFF;
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2914 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2915 #ifndef BLASTEM_BIG_ENDIAN
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2916 byteswap_rom(tmss_size, (uint16_t *)buffer);
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2917 #endif
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2918 //mirror TMSS ROM until we fill up to tmss_min_alloc
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2919 for (uint32_t dst = tmss_size; dst < tmss_min_alloc; dst += tmss_size)
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2920 {
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2921 memcpy(buffer + dst, buffer, dst + tmss_size > tmss_min_alloc ? tmss_min_alloc - dst : tmss_size);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
2922 }
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2923 //modify mappings for ROM space to point to the TMSS ROM and fixup flags to allow switching back and forth
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2924 //WARNING: This code makes some pretty big assumptions about the kinds of map chunks it will encounter
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2925 for (int i = 0; i < info.map_chunks; i++)
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2926 {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2927 if (info.map[i].start < 0x400000 && info.map[i].read_16 != unused_read) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2928 if (info.map[i].flags == MMAP_READ) {
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2929 //Normal ROM
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2930 info.map[i].flags |= MMAP_PTR_IDX | MMAP_CODE;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2931 info.map[i].ptr_index = next_ptr_index++;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2932 if (info.map[i].ptr_index >= NUM_MEM_AREAS) {
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2933 fatal_error("Too many memmap chunks with MMAP_PTR_IDX after TMSS remap\n");
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2934 }
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2935 gen->tmss_pointers[info.map[i].ptr_index] = info.map[i].buffer;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2936 info.map[i].buffer = buffer + (info.map[i].start & ~info.map[i].mask & (tmss_size - 1));
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2937 } else if (info.map[i].flags & MMAP_PTR_IDX) {
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2938 //Sega mapper page or multi-game mapper
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2939 gen->tmss_pointers[info.map[i].ptr_index] = info.map[i].buffer;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2940 info.map[i].buffer = buffer + (info.map[i].start & ~info.map[i].mask & (tmss_size - 1));
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2941 if (info.map[i].write_16) {
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2942 if (!gen->tmss_write_16) {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2943 gen->tmss_write_16 = info.map[i].write_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2944 gen->tmss_write_8 = info.map[i].write_8;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2945 info.map[i].write_16 = tmss_rom_write_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2946 info.map[i].write_8 = tmss_rom_write_8;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2947 } else if (gen->tmss_write_16 == info.map[i].write_16) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2948 info.map[i].write_16 = tmss_rom_write_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2949 info.map[i].write_8 = tmss_rom_write_8;
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2950 } else {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2951 warning("Chunk starting at %X has a write function, but we've already stored a different one for TMSS remap\n", info.map[i].start);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2952 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2953 }
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2954 } else if ((info.map[i].flags & (MMAP_READ | MMAP_WRITE)) == (MMAP_READ | MMAP_WRITE)) {
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2955 //RAM or SRAM
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2956 info.map[i].flags |= MMAP_PTR_IDX;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2957 info.map[i].ptr_index = next_ptr_index++;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2958 gen->tmss_pointers[info.map[i].ptr_index] = info.map[i].buffer;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2959 info.map[i].buffer = buffer + (info.map[i].start & ~info.map[i].mask & (tmss_size - 1));
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2960 if (!gen->tmss_write_offset || gen->tmss_write_offset == info.map[i].start) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2961 gen->tmss_write_offset = info.map[i].start;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2962 info.map[i].flags &= ~MMAP_WRITE;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2963 if (info.map[i].flags & MMAP_ONLY_ODD) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2964 info.map[i].write_16 = tmss_odd_write_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2965 info.map[i].write_8 = tmss_odd_write_8;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2966 } else if (info.map[i].flags & MMAP_ONLY_EVEN) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2967 info.map[i].write_16 = tmss_even_write_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2968 info.map[i].write_8 = tmss_even_write_8;
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2969 } else {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2970 info.map[i].write_16 = tmss_word_write_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2971 info.map[i].write_8 = tmss_word_write_8;
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2972 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2973 } else {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2974 warning("Could not remap writes for chunk starting at %X for TMSS because write_offset is %X\n", info.map[i].start, gen->tmss_write_offset);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2975 }
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2976 } else if (info.map[i].flags & MMAP_READ_CODE) {
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2977 //NOR flash
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2978 info.map[i].flags |= MMAP_PTR_IDX;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2979 info.map[i].ptr_index = next_ptr_index++;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2980 if (info.map[i].ptr_index >= NUM_MEM_AREAS) {
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2981 fatal_error("Too many memmap chunks with MMAP_PTR_IDX after TMSS remap\n");
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2982 }
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2983 gen->tmss_pointers[info.map[i].ptr_index] = info.map[i].buffer;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2984 info.map[i].buffer = buffer + (info.map[i].start & ~info.map[i].mask & (tmss_size - 1));
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2985 if (!gen->tmss_write_16) {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2986 gen->tmss_write_16 = info.map[i].write_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2987 gen->tmss_write_8 = info.map[i].write_8;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2988 gen->tmss_read_16 = info.map[i].read_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2989 gen->tmss_read_8 = info.map[i].read_8;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2990 info.map[i].write_16 = tmss_rom_write_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2991 info.map[i].write_8 = tmss_rom_write_8;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2992 info.map[i].read_16 = tmss_rom_read_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2993 info.map[i].read_8 = tmss_rom_read_8;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2994 } else if (gen->tmss_write_16 == info.map[i].write_16) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2995 info.map[i].write_16 = tmss_rom_write_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2996 info.map[i].write_8 = tmss_rom_write_8;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2997 info.map[i].read_16 = tmss_rom_read_16;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
2998 info.map[i].read_8 = tmss_rom_read_8;
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
2999 } else {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3000 warning("Chunk starting at %X has a write function, but we've already stored a different one for TMSS remap\n", info.map[i].start);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3001 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3002 } else {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3003 warning("Didn't remap chunk starting at %X for TMSS because it has flags %X\n", info.map[i].start, info.map[i].flags);
2034
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3004 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3005 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3006 }
8b2ef428d1aa Implement TMSS ROM and cart mapping register
Michael Pavone <pavone@retrodev.com>
parents: 2033
diff changeset
3007 gen->tmss_buffer = buffer;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
3008 }
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3009 memmap_chunk* map = info.map;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3010 uint32_t map_chunks = info.map_chunks;
2088
c716af3f8980 Enable Sega CD emulation for carts if a CD image is "locked-on" even if the cart does not specify that it uses the CD peripheral in the header
Michael Pavone <pavone@retrodev.com>
parents: 2083
diff changeset
3011 if (info.wants_cd || (current_media()->chain && current_media()->chain->type == MEDIA_CDROM)) {
2277
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
3012 gen->header.type = SYSTEM_SEGACD;
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3013 segacd_context *cd = alloc_configure_segacd((system_media *)current_media(), 0, force_region, &info);
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3014 gen->expansion = cd;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3015 gen->version_reg &= ~NO_DISK;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3016 cd->genesis = gen;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3017 uint32_t cd_chunks;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3018 memmap_chunk *cd_map = segacd_main_cpu_map(gen->expansion, 1, &cd_chunks);
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3019 map_chunks = cd_chunks + info.map_chunks;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3020 map = calloc(map_chunks, sizeof(memmap_chunk));
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3021 memcpy(map, info.map, sizeof(memmap_chunk) * (info.map_chunks - 1));
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3022 memcpy(map + info.map_chunks - 1, cd_map, sizeof(memmap_chunk) * cd_chunks);
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3023 memcpy(map + map_chunks - 1, info.map + info.map_chunks - 1, sizeof(memmap_chunk));
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3024 free(info.map);
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3025 int max_ptr_index = -1;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3026 for (int i = 0; i < info.map_chunks - 1; i++)
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3027 {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3028 if (map[i].flags & MMAP_PTR_IDX && map[i].ptr_index > max_ptr_index) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3029 max_ptr_index = map[i].ptr_index;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3030 }
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3031 }
2090
00b6592cad42 Fix typo that messed up Mode 1 for carts with mappers
Michael Pavone <pavone@retrodev.com>
parents: 2088
diff changeset
3032 cd->memptr_start_index = max_ptr_index + 1;
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3033 for (int i = info.map_chunks - 1; i < map_chunks - 1; i++)
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3034 {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3035 if (map[i].flags & MMAP_PTR_IDX) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3036 map[i].ptr_index += cd->memptr_start_index;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3037 }
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3038 }
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3039 cd->base = 0x400000;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
3040 cd->m68k->opts->address_log = (ym_opts & OPT_ADDRESS_LOG) ? fopen("address_sub.log", "w") : NULL;
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3041 }
2248
f7e2e11f1214 Fix improper free of memory map array from rom_info
Michael Pavone <pavone@retrodev.com>
parents: 2243
diff changeset
3042 info.map = gen->header.info.map = NULL;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
3043
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
3044 m68k_options *opts = malloc(sizeof(m68k_options));
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
3045 init_m68k_opts(opts, map, map_chunks, MCLKS_PER_68K, sync_components, int_ack);
1901
5433252329fb Set version reg and TAS behavior based on model config
Michael Pavone <pavone@retrodev.com>
parents: 1889
diff changeset
3046 if (!strcmp(tern_find_ptr_default(model, "tas", "broken"), "broken")) {
5433252329fb Set version reg and TAS behavior based on model config
Michael Pavone <pavone@retrodev.com>
parents: 1889
diff changeset
3047 opts->gen.flags |= M68K_OPT_BROKEN_READ_MODIFY;
5433252329fb Set version reg and TAS behavior based on model config
Michael Pavone <pavone@retrodev.com>
parents: 1889
diff changeset
3048 }
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
3049 gen->m68k = init_68k_context(opts, NULL);
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
3050 gen->m68k->system = gen;
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3051 opts->address_log = (ym_opts & OPT_ADDRESS_LOG) ? fopen("address.log", "w") : NULL;
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
3052
1165
9fc680b35dbb Fix crash regression for games with some kind of mapper functionality
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
3053 //This must happen after the 68K context has been allocated
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3054 for (int i = 0; i < map_chunks; i++)
1165
9fc680b35dbb Fix crash regression for games with some kind of mapper functionality
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
3055 {
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3056 if (map[i].flags & MMAP_PTR_IDX) {
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3057 gen->m68k->mem_pointers[map[i].ptr_index] = map[i].buffer;
1165
9fc680b35dbb Fix crash regression for games with some kind of mapper functionality
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
3058 }
9fc680b35dbb Fix crash regression for games with some kind of mapper functionality
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
3059 }
2052
3748a2a8a4b7 Support Sega mapper without 'SEGA SSF' in header or ROM DB entry and implement a subset of the extended Sega mapper implemented in the Mega Everdrive when 'SEGA SSF' is present
Michael Pavone <pavone@retrodev.com>
parents: 2039
diff changeset
3060
1452
f284ad74afe1 Make initial bank register state stored in bank_regs match what is put in to mem_pointers for the sega/SSF2 mapper. Invalidate RAM code ranges on RAM deserialization
Michael Pavone <pavone@retrodev.com>
parents: 1449
diff changeset
3061 if (gen->mapper_type == MAPPER_SEGA) {
f284ad74afe1 Make initial bank register state stored in bank_regs match what is put in to mem_pointers for the sega/SSF2 mapper. Invalidate RAM code ranges on RAM deserialization
Michael Pavone <pavone@retrodev.com>
parents: 1449
diff changeset
3062 //initialize bank registers
f284ad74afe1 Make initial bank register state stored in bank_regs match what is put in to mem_pointers for the sega/SSF2 mapper. Invalidate RAM code ranges on RAM deserialization
Michael Pavone <pavone@retrodev.com>
parents: 1449
diff changeset
3063 for (int i = 1; i < sizeof(gen->bank_regs); i++)
f284ad74afe1 Make initial bank register state stored in bank_regs match what is put in to mem_pointers for the sega/SSF2 mapper. Invalidate RAM code ranges on RAM deserialization
Michael Pavone <pavone@retrodev.com>
parents: 1449
diff changeset
3064 {
f284ad74afe1 Make initial bank register state stored in bank_regs match what is put in to mem_pointers for the sega/SSF2 mapper. Invalidate RAM code ranges on RAM deserialization
Michael Pavone <pavone@retrodev.com>
parents: 1449
diff changeset
3065 gen->bank_regs[i] = i;
f284ad74afe1 Make initial bank register state stored in bank_regs match what is put in to mem_pointers for the sega/SSF2 mapper. Invalidate RAM code ranges on RAM deserialization
Michael Pavone <pavone@retrodev.com>
parents: 1449
diff changeset
3066 }
f284ad74afe1 Make initial bank register state stored in bank_regs match what is put in to mem_pointers for the sega/SSF2 mapper. Invalidate RAM code ranges on RAM deserialization
Michael Pavone <pavone@retrodev.com>
parents: 1449
diff changeset
3067 }
1954
2fd0a8cb1c80 Properly initialize Genesis reset cycle on startup. Fixes crash in GDB remote debugger when stepping past the first two instructions
Michael Pavone <pavone@retrodev.com>
parents: 1946
diff changeset
3068 gen->reset_cycle = CYCLE_NEVER;
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
3069
2277
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
3070 set_audio_config(gen);
1103
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
3071 return gen;
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
3072 }
22e87b739ad6 WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
3073
1692
5dacaef602a7 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1503 1643
diff changeset
3074 genesis_context *alloc_config_genesis_cdboot(system_media *media, uint32_t system_opts, uint8_t force_region)
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3075 {
1692
5dacaef602a7 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1503 1643
diff changeset
3076 tern_node *rom_db = get_rom_db();
5dacaef602a7 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1503 1643
diff changeset
3077 rom_info info = configure_rom(rom_db, media->buffer, media->size, NULL, 0, base_map, base_chunks);
2267
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3078 if (media->size > 0x20B) {
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3079 //Use a byte in the security code region that's unique across all 3 regions
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3080 //since it's more reliable than the official header field for this
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3081 uint8_t *bytes = media->buffer;
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3082 switch (bytes[0x20B])
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3083 {
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3084 case 0x7A:
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3085 info.regions = REGION_U;
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3086 break;
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3087 case 0xA1:
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3088 info.regions = REGION_J;
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3089 break;
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3090 case 0x64:
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3091 info.regions = REGION_E;
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3092 break;
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3093 }
94cca8b8429e Use byte in security code for region identification for Sega/Mega CD discs
Michael Pavone <pavone@retrodev.com>
parents: 2255
diff changeset
3094 }
2053
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
3095
1692
5dacaef602a7 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1503 1643
diff changeset
3096 segacd_context *cd = alloc_configure_segacd(media, system_opts, force_region, &info);
5dacaef602a7 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1503 1643
diff changeset
3097 genesis_context *gen = shared_init(system_opts, &info, force_region);
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3098 gen->cart = gen->lock_on = NULL;
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3099 gen->save_storage = NULL;
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3100 gen->save_type = SAVE_NONE;
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3101 gen->version_reg &= ~NO_DISK;
2053
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
3102
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3103 gen->expansion = cd;
2499
d74d3998482c Make some progress on compiling full emulator with new 68K core
Michael Pavone <pavone@retrodev.com>
parents: 2488
diff changeset
3104 cd->m68k->opts->address_log = (system_opts & OPT_ADDRESS_LOG) ? fopen("address_sub.log", "w") : NULL;
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3105 gen->version_reg &= ~NO_DISK;
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3106 cd->genesis = gen;
1692
5dacaef602a7 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1503 1643
diff changeset
3107 setup_io_devices(config, &info, &gen->io);
2053
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
3108
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3109 uint32_t cd_chunks;
2054
8ee7ecbf3f21 Implement enough of Sega CD gate array and Sub CPU to pass Sik's Mode 1 test ROM
Michael Pavone <pavone@retrodev.com>
parents: 2053
diff changeset
3110 memmap_chunk *cd_map = segacd_main_cpu_map(gen->expansion, 0, &cd_chunks);
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3111 memmap_chunk *map = malloc(sizeof(memmap_chunk) * (cd_chunks + base_chunks));
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3112 memcpy(map, cd_map, sizeof(memmap_chunk) * cd_chunks);
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3113 memcpy(map + cd_chunks, base_map, sizeof(memmap_chunk) * base_chunks);
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3114 map[cd_chunks].buffer = gen->work_ram;
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3115 uint32_t num_chunks = cd_chunks + base_chunks;
2053
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
3116
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3117 m68k_options *opts = malloc(sizeof(m68k_options));
2350
f8b5142c06aa Allow 68K to return mid-instruction. Adjust how 68K interrupt ack works so int2 busy flag timing is more correct. Fix some other SCD timing issues
Michael Pavone <pavone@retrodev.com>
parents: 2336
diff changeset
3118 init_m68k_opts(opts, map, num_chunks, MCLKS_PER_68K, sync_components, int_ack);
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3119 //TODO: make this configurable
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3120 opts->gen.flags |= M68K_OPT_BROKEN_READ_MODIFY;
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3121 gen->m68k = init_68k_context(opts, NULL);
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3122 gen->m68k->system = gen;
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3123 opts->address_log = (system_opts & OPT_ADDRESS_LOG) ? fopen("address.log", "w") : NULL;
2053
3414a4423de1 Merge from default
Michael Pavone <pavone@retrodev.com>
parents: 1692 2052
diff changeset
3124
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3125 //This must happen after the 68K context has been allocated
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3126 for (int i = 0; i < num_chunks; i++)
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3127 {
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3128 if (map[i].flags & MMAP_PTR_IDX) {
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3129 gen->m68k->mem_pointers[map[i].ptr_index] = map[i].buffer;
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3130 }
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3131 }
2083
372625dd9590 Persist BRAM to file. Load BIOS relative to blastem directory
Michael Pavone <pavone@retrodev.com>
parents: 2080
diff changeset
3132 gen->header.type = SYSTEM_SEGACD;
2277
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
3133
9e578fd493e1 Implement gain control for Ricoh PCM and CDDA with defaults based on Model 2 Sega CD
Michael Pavone <pavone@retrodev.com>
parents: 2272
diff changeset
3134 set_audio_config(gen);
1503
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3135 return gen;
a763523dadf4 Added code for initializing a combined Genesis + Sega CD system when a Sega CD ISO is loaded
Michael Pavone <pavone@retrodev.com>
parents: 1452
diff changeset
3136 }
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3137
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3138 static memmap_chunk pico_base_map[] = {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3139 {0xE00000, 0x1000000, 0xFFFF, .flags = MMAP_READ | MMAP_WRITE | MMAP_CODE},
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3140 {0xC00000, 0xE00000, 0x1FFFFF, .read_16 = (read_16_fun)vdp_port_read, .write_16 =(write_16_fun)vdp_port_write,
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3141 .read_8 = (read_8_fun)vdp_port_read_b, .write_8 = (write_8_fun)vdp_port_write_b},
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
3142 {0x800000, 0x900000, 0xFFFFFF, .read_16 = pico_io_read_w, .write_16 = pico_io_write_w,
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
3143 .read_8 = pico_io_read, .write_8 = pico_io_write},
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
3144 {0xB00000, 0xC00000, 0xFFFFFF, .read_16 = copera_io_read_w, .write_16 = copera_io_write_w,
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
3145 .read_8 = copera_io_read, .write_8 = copera_io_write}
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3146 };
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3147 const size_t pico_base_chunks = sizeof(pico_base_map)/sizeof(*pico_base_map);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3148
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
3149 genesis_context* alloc_config_pico(void *rom, uint32_t rom_size, void *lock_on, uint32_t lock_on_size, uint32_t ym_opts, uint8_t force_region, system_type stype)
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3150 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3151 tern_node *rom_db = get_rom_db();
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
3152 uint32_t chunks = pico_base_chunks;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
3153 if (stype == SYSTEM_PICO) {
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
3154 chunks--;
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
3155 }
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
3156 rom_info info = configure_rom(rom_db, rom, rom_size, lock_on, lock_on_size, pico_base_map, chunks);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3157 rom = info.rom;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3158 rom_size = info.rom_size;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3159 #ifndef BLASTEM_BIG_ENDIAN
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3160 byteswap_rom(nearest_pow2(rom_size), rom);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3161 if (lock_on) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3162 byteswap_rom(nearest_pow2(lock_on_size), lock_on);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3163 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3164 #endif
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3165 char *m68k_divider = tern_find_path(config, "clocks\0m68k_divider\0", TVAL_PTR).ptrval;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3166 if (!m68k_divider) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3167 m68k_divider = "7";
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3168 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3169 MCLKS_PER_68K = atoi(m68k_divider);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3170 if (!MCLKS_PER_68K) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3171 MCLKS_PER_68K = 7;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3172 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3173 genesis_context *gen = calloc(1, sizeof(genesis_context));
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3174 gen->header.set_speed_percent = set_speed_percent;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3175 gen->header.start_context = start_genesis;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3176 gen->header.resume_context = resume_genesis;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3177 gen->header.load_save = load_save;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3178 gen->header.persist_save = persist_save;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3179 gen->header.load_state = load_state;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3180 gen->header.soft_reset = soft_reset;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3181 gen->header.free_context = free_genesis;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3182 gen->header.get_open_bus_value = get_open_bus_value;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3183 gen->header.request_exit = request_exit;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3184 gen->header.inc_debug_mode = inc_debug_mode;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3185 gen->header.gamepad_down = gamepad_down_pico;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3186 gen->header.gamepad_up = gamepad_up_pico;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3187 gen->header.mouse_down = mouse_down_pico;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3188 gen->header.mouse_up = mouse_up_pico;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3189 gen->header.mouse_motion_absolute = mouse_motion_absolute_pico;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3190 gen->header.mouse_motion_relative = mouse_motion_relative_pico;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3191 gen->header.keyboard_down = keyboard_down_pico;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3192 gen->header.keyboard_up = keyboard_up_pico;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3193 gen->header.config_updated = config_updated;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3194 gen->header.serialize = serialize;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3195 gen->header.deserialize = deserialize;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3196 gen->header.start_vgm_log = start_vgm_log;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3197 gen->header.stop_vgm_log = stop_vgm_log;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3198 gen->header.toggle_debug_view = toggle_debug_view;
2459
cb62730d5c99 Initial work on Copera emulation
Michael Pavone <pavone@retrodev.com>
parents: 2438
diff changeset
3199 gen->header.type = stype;
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3200 gen->header.info = info;
2437
79a8cccb6ac1 Add region override for German version of The Lion King for Pico
Michael Pavone <pavone@retrodev.com>
parents: 2433
diff changeset
3201 set_region(gen, &info, force_region);
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3202 gen->vdp_unlocked = 1;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3203 gen->pico_button_state = 0xFF;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3204
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3205 gen->vdp = init_vdp_context((gen->version_reg & 0x60) == 0x20, 40, VDP_GENESIS);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3206 gen->vdp->system = &gen->header;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3207 gen->frame_end = vdp_cycles_to_frame_end(gen->vdp);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3208 char * config_cycles = tern_find_path(config, "clocks\0max_cycles\0", TVAL_PTR).ptrval;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3209 gen->max_cycles = config_cycles ? atoi(config_cycles) : DEFAULT_SYNC_INTERVAL;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3210 gen->int_latency_prev1 = MCLKS_PER_68K * 32;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3211 gen->int_latency_prev2 = MCLKS_PER_68K * 16;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3212
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3213 render_set_video_standard((gen->version_reg & 0x60) == 0x20 ? VID_PAL : VID_NTSC);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3214
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3215 gen->psg = calloc(1, sizeof(psg_context));
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3216 psg_init(gen->psg, gen->master_clock, MCLKS_PER_PSG);
2431
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
3217
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
3218 gen->adpcm = calloc(1, sizeof(pico_pcm));
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
3219 pico_pcm_init(gen->adpcm, gen->master_clock, 42);
61c0bfe10887 Somewhat busted support for Pico ADPCM
Michael Pavone <pavone@retrodev.com>
parents: 2429
diff changeset
3220
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
3221 if (stype == SYSTEM_COPERA) {
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
3222 gen->ymz = calloc(1, sizeof(*gen->ymz));
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
3223 //This divider is just a guess, PCB diagram in MAME shows no other crystal
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
3224 //Datasheet says the typical clock is 16.9344 MHz
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
3225 //Master clock / 3 is 17.897725 MHz which is reasonably close
2466
b5640ac9aea9 Initial stab at PCM/ADPCM support in YMZ263B emulation
Michael Pavone <pavone@retrodev.com>
parents: 2460
diff changeset
3226 ymz263b_init(gen->ymz, gen->master_clock, 3);
2460
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
3227 }
a4f8fa24764b Initial work on emulating the YMZ263B in the Copera
Michael Pavone <pavone@retrodev.com>
parents: 2459
diff changeset
3228
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3229 gen->work_ram = calloc(2, RAM_WORDS);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3230 if (!strcmp("random", tern_find_path_default(config, "system\0ram_init\0", (tern_val){.ptrval = "zero"}, TVAL_PTR).ptrval))
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3231 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3232 srand(time(NULL));
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3233 for (int i = 0; i < RAM_WORDS; i++)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3234 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3235 gen->work_ram[i] = rand();
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3236 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3237 for (int i = 0; i < VRAM_SIZE; i++)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3238 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3239 gen->vdp->vdpmem[i] = rand();
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3240 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3241 for (int i = 0; i < SAT_CACHE_SIZE; i++)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3242 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3243 gen->vdp->sat_cache[i] = rand();
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3244 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3245 for (int i = 0; i < CRAM_SIZE; i++)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3246 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3247 write_cram_internal(gen->vdp, i, rand());
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3248 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3249 for (int i = 0; i < gen->vdp->vsram_size; i++)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3250 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3251 gen->vdp->vsram[i] = rand();
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3252 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3253 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3254 gen->cart = rom;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3255 gen->lock_on = lock_on;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3256 gen->header.has_keyboard = 0; //TODO: Keyboard Pico emulation
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3257 gen->mapper_type = info.mapper_type;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3258 gen->save_type = info.save_type;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3259 if (gen->save_type != SAVE_NONE) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3260 gen->save_ram_mask = info.save_mask;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3261 gen->save_size = info.save_size;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3262 gen->save_storage = info.save_buffer;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3263 gen->header.info.save_buffer = info.save_buffer = NULL;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3264 gen->eeprom_map = info.eeprom_map;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3265 gen->num_eeprom = info.num_eeprom;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3266 if (gen->save_type == SAVE_I2C) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3267 eeprom_init(&gen->eeprom, gen->save_storage, gen->save_size);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3268 } else if (gen->save_type == SAVE_NOR) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3269 memcpy(&gen->nor, info.nor, sizeof(gen->nor));
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3270 //nor_flash_init(&gen->nor, gen->save_storage, gen->save_size, info.save_page_size, info.save_product_id, info.save_bus);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3271 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3272 } else {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3273 gen->save_storage = NULL;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3274 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3275
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3276 gen->mapper_start_index = info.mapper_start_index;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3277 //This must happen before we generate memory access functions in init_m68k_opts
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3278 for (int i = 0; i < info.map_chunks; i++)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3279 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3280 if (info.map[i].start == 0xE00000) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3281 info.map[i].buffer = gen->work_ram;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3282 break;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3283 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3284 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3285
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3286 memmap_chunk* map = info.map;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3287 uint32_t map_chunks = info.map_chunks;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3288 info.map = gen->header.info.map = NULL;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3289
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3290 m68k_options *opts = malloc(sizeof(m68k_options));
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3291 init_m68k_opts(opts, map, map_chunks, MCLKS_PER_68K, sync_components_pico, int_ack);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3292 //TODO: Pico model selection
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3293 //if (!strcmp(tern_find_ptr_default(model, "tas", "broken"), "broken")) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3294 opts->gen.flags |= M68K_OPT_BROKEN_READ_MODIFY;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3295 //}
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3296 gen->m68k = init_68k_context(opts, NULL);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3297 gen->m68k->system = gen;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3298 opts->address_log = (ym_opts & OPT_ADDRESS_LOG) ? fopen("address.log", "w") : NULL;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3299
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3300 //This must happen after the 68K context has been allocated
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3301 for (int i = 0; i < map_chunks; i++)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3302 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3303 if (map[i].flags & MMAP_PTR_IDX) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3304 gen->m68k->mem_pointers[map[i].ptr_index] = map[i].buffer;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3305 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3306 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3307
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3308 if (gen->mapper_type == MAPPER_SEGA) {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3309 //initialize bank registers
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3310 for (int i = 1; i < sizeof(gen->bank_regs); i++)
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3311 {
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3312 gen->bank_regs[i] = i;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3313 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3314 }
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3315 gen->reset_cycle = CYCLE_NEVER;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3316
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3317 set_audio_config(gen);
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3318 bindings_set_mouse_mode(MOUSE_ABSOLUTE);
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3319 memset(gen->pico_story_pages, 0xFF, sizeof(gen->pico_story_pages));
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3320 #ifndef IS_LIB
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3321 gen->pico_story_window = render_create_window("Pico Storybook & Pad", 640, 640, NULL);
2438
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3322 char *manifest_name = alloc_concat(current_media()->name, ".manifest");
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3323 char *manifest_str = load_media_subfile(current_media(), manifest_name, NULL);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3324 tern_node *manifest = NULL;
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3325 if (manifest_str) {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3326 manifest = parse_config(manifest_str);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3327 if (!manifest) {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3328 printf("Failed to parse manifest %s\n", manifest_name);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3329 }
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3330 } else {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3331 printf("Manifest file %s not found\n", manifest_name);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3332 }
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3333
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3334 tern_node *pages = tern_find_node(manifest, "pages");
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3335 if (!pages && manifest) {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3336 printf("No pages key in %s\n", manifest_name);
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3337 }
2438
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3338 char numkey[18];
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3339 for (int i = 0; i < 7; i++) {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3340 uint8_t *img_data;
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3341 uint32_t img_size;
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3342 if (pages) {
2438
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3343 sprintf(numkey, "%d", i);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3344 char *page_path = tern_find_ptr(pages, numkey);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3345 if (page_path) {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3346 printf("page %d: %s\n", i, page_path);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3347 } else {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3348 continue;
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3349 }
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3350 img_data = load_media_subfile(current_media(), page_path, &img_size);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3351 if (!img_data) {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3352 printf("Failed to load image file for page %d from %s\n", i, page_path);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3353 continue;
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3354 }
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3355 } else {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3356 sprintf(numkey, "_%d.png", i);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3357 char *img_path = alloc_concat(current_media()->name, numkey);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3358 img_data = load_media_subfile(current_media(), img_path, &img_size);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3359 if (!img_data) {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3360 sprintf(numkey, "_%d.PNG", i);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3361 char *img_path_loud = alloc_concat(current_media()->name, numkey);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3362 img_data = load_media_subfile(current_media(), img_path_loud, &img_size);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3363 if (!img_data) {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3364 printf("Failed to load image file for page %d from %s or %s\n", i, img_path, img_path_loud);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3365 free(img_path);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3366 free(img_path_loud);
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3367 continue;
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3368 }
2438
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3369 free(img_path_loud);
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3370 }
2438
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3371 free(img_path);
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3372 }
2438
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3373
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3374 gen->pico_story_pages[i] = render_static_image(gen->pico_story_window, img_data, img_size);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3375 if (gen->pico_story_pages[i] == 0xFF) {
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3376 printf("Failed to decode image for page %d\n", i);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3377 }
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3378 free(img_data);
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3379 }
2438
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3380
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3381 free(manifest_name);
bed4d3db8a3f More flexible loading of Pico storyware assets
Michael Pavone <pavone@retrodev.com>
parents: 2437
diff changeset
3382 tern_free(manifest);
2429
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3383 pico_update_page(gen);
da3dc881d3f0 Initial implementation of storbook artwork display
Michael Pavone <pavone@retrodev.com>
parents: 2428
diff changeset
3384 #endif
2428
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3385 return gen;
65c2e4d990cc WIP Pico emulation
Michael Pavone <pavone@retrodev.com>
parents: 2424
diff changeset
3386 }