annotate sms.c @ 1587:ea687ca7d845

Fix missing include in bindings.c
author Michael Pavone <pavone@retrodev.com>
date Tue, 19 Jun 2018 23:47:36 -0700
parents 430dd12e4010
children 360d5bab199f
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 #include <string.h>
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2 #include <stdlib.h>
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3 #include <stddef.h>
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4 #include "sms.h"
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5 #include "blastem.h"
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6 #include "render.h"
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7 #include "util.h"
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8 #include "debug.h"
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9 #include "saves.h"
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10 #include "bindings.h"
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11
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12 static void *memory_io_write(uint32_t location, void *vcontext, uint8_t value)
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13 {
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14 z80_context *z80 = vcontext;
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15 sms_context *sms = z80->system;
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16 if (location & 1) {
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17 uint8_t fuzzy_ctrl_0 = sms->io.ports[0].control, fuzzy_ctrl_1 = sms->io.ports[1].control;
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65f1d6558e9e Update SMS code for changes supporting slow rise time emulation in IO code
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18 io_control_write(sms->io.ports, (~value) << 5 & 0x60, z80->current_cycle);
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19 fuzzy_ctrl_0 |= sms->io.ports[0].control;
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20 io_control_write(sms->io.ports+1, (~value) << 3 & 0x60, z80->current_cycle);
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21 fuzzy_ctrl_1 |= sms->io.ports[1].control;
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22 if (
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23 (fuzzy_ctrl_0 & 0x40 & (sms->io.ports[0].output ^ (value << 1)) & (value << 1))
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24 || (fuzzy_ctrl_0 & 0x40 & (sms->io.ports[1].output ^ (value >> 1)) & (value >> 1))
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25 ) {
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26 //TH is an output and it went from 0 -> 1
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27 vdp_run_context(sms->vdp, z80->current_cycle);
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28 vdp_latch_hv(sms->vdp);
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29 }
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30 io_data_write(sms->io.ports, value << 1, z80->current_cycle);
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31 io_data_write(sms->io.ports + 1, value >> 1, z80->current_cycle);
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32 } else {
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33 //TODO: memory control write
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34 }
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35 return vcontext;
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36 }
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37
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38 static uint8_t hv_read(uint32_t location, void *vcontext)
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39 {
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40 z80_context *z80 = vcontext;
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41 sms_context *sms = z80->system;
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42 vdp_run_context(sms->vdp, z80->current_cycle);
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43 uint16_t hv = vdp_hv_counter_read(sms->vdp);
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44 if (location & 1) {
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45 return hv;
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46 } else {
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47 return hv >> 8;
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48 }
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49 }
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50
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51 static void *sms_psg_write(uint32_t location, void *vcontext, uint8_t value)
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52 {
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53 z80_context *z80 = vcontext;
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54 sms_context *sms = z80->system;
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55 psg_run(sms->psg, z80->current_cycle);
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56 psg_write(sms->psg, value);
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57 return vcontext;
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58 }
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59
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60 static void update_interrupts(sms_context *sms)
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61 {
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62 uint32_t vint = vdp_next_vint(sms->vdp);
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63 uint32_t hint = vdp_next_hint(sms->vdp);
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64 sms->z80->int_pulse_start = vint < hint ? vint : hint;
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65 }
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66
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67 static uint8_t vdp_read(uint32_t location, void *vcontext)
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68 {
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69 z80_context *z80 = vcontext;
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70 sms_context *sms = z80->system;
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71 vdp_run_context(sms->vdp, z80->current_cycle);
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72 if (location & 1) {
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73 uint8_t ret = vdp_control_port_read(sms->vdp);
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74 sms->vdp->flags2 &= ~(FLAG2_VINT_PENDING|FLAG2_HINT_PENDING);
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75 update_interrupts(sms);
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76 return ret;
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77 } else {
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6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
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78 return vdp_data_port_read_pbc(sms->vdp);
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79 }
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80 }
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81
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82 static void *vdp_write(uint32_t location, void *vcontext, uint8_t value)
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83 {
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84 z80_context *z80 = vcontext;
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85 sms_context *sms = z80->system;
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86 if (location & 1) {
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87 vdp_run_context_full(sms->vdp, z80->current_cycle);
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88 vdp_control_port_write_pbc(sms->vdp, value);
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89 update_interrupts(sms);
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90 } else {
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91 vdp_run_context(sms->vdp, z80->current_cycle);
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92 vdp_data_port_write_pbc(sms->vdp, value);
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93 }
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94 return vcontext;
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95 }
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96
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97 static uint8_t io_read(uint32_t location, void *vcontext)
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98 {
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99 z80_context *z80 = vcontext;
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100 sms_context *sms = z80->system;
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101 if (location == 0xC0 || location == 0xDC) {
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102 uint8_t port_a = io_data_read(sms->io.ports, z80->current_cycle);
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103 uint8_t port_b = io_data_read(sms->io.ports+1, z80->current_cycle);
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104 return (port_a & 0x3F) | (port_b << 6);
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105 }
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106 if (location == 0xC1 || location == 0xDD) {
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107 uint8_t port_a = io_data_read(sms->io.ports, z80->current_cycle);
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108 uint8_t port_b = io_data_read(sms->io.ports+1, z80->current_cycle);
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109 return (port_a & 0x40) | (port_b >> 2 & 0xF) | (port_b << 1 & 0x80) | 0x10;
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110 }
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111 return 0xFF;
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112 }
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113
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114 static void update_mem_map(uint32_t location, sms_context *sms, uint8_t value)
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115 {
1433
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parents: 1401
diff changeset
116 z80_context *z80 = sms->z80;
1142
5c8b1c33ca10 Invalidate translated code on a cartridge bank change in SMS mode. Fix handling of bank 0
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parents: 1141
diff changeset
117 void *old_value;
5c8b1c33ca10 Invalidate translated code on a cartridge bank change in SMS mode. Fix handling of bank 0
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parents: 1141
diff changeset
118 if (location) {
5c8b1c33ca10 Invalidate translated code on a cartridge bank change in SMS mode. Fix handling of bank 0
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parents: 1141
diff changeset
119 uint32_t idx = location - 1;
5c8b1c33ca10 Invalidate translated code on a cartridge bank change in SMS mode. Fix handling of bank 0
Michael Pavone <pavone@retrodev.com>
parents: 1141
diff changeset
120 old_value = z80->mem_pointers[idx];
5c8b1c33ca10 Invalidate translated code on a cartridge bank change in SMS mode. Fix handling of bank 0
Michael Pavone <pavone@retrodev.com>
parents: 1141
diff changeset
121 z80->mem_pointers[idx] = sms->rom + (value << 14 & (sms->rom_size-1));
5c8b1c33ca10 Invalidate translated code on a cartridge bank change in SMS mode. Fix handling of bank 0
Michael Pavone <pavone@retrodev.com>
parents: 1141
diff changeset
122 if (old_value != z80->mem_pointers[idx]) {
5c8b1c33ca10 Invalidate translated code on a cartridge bank change in SMS mode. Fix handling of bank 0
Michael Pavone <pavone@retrodev.com>
parents: 1141
diff changeset
123 //invalidate any code we translated for the relevant bank
5c8b1c33ca10 Invalidate translated code on a cartridge bank change in SMS mode. Fix handling of bank 0
Michael Pavone <pavone@retrodev.com>
parents: 1141
diff changeset
124 z80_invalidate_code_range(z80, idx ? idx * 0x4000 : 0x400, idx * 0x4000 + 0x4000);
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parents: 1141
diff changeset
125 }
5c8b1c33ca10 Invalidate translated code on a cartridge bank change in SMS mode. Fix handling of bank 0
Michael Pavone <pavone@retrodev.com>
parents: 1141
diff changeset
126 } else {
1149
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
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parents: 1148
diff changeset
127 old_value = z80->mem_pointers[2];
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parents: 1148
diff changeset
128 if (value & 8) {
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Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
129 //cartridge RAM is enabled
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Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
130 z80->mem_pointers[2] = sms->cart_ram + (value & 4 ? (SMS_CART_RAM_SIZE/2) : 0);
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Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
131 } else {
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parents: 1148
diff changeset
132 //cartridge RAM is disabled
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Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
133 z80->mem_pointers[2] = sms->rom + (sms->bank_regs[3] << 14 & (sms->rom_size-1));
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Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
134 }
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Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
135 if (old_value != z80->mem_pointers[2]) {
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
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parents: 1148
diff changeset
136 //invalidate any code we translated for the relevant bank
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Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
137 z80_invalidate_code_range(z80, 0x8000, 0xC000);
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Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
138 }
1141
7e199bebde2f Initial support for Sega's family of SMS mappers
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diff changeset
139 }
1433
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Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
140 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
141
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parents: 1401
diff changeset
142 static void *mapper_write(uint32_t location, void *vcontext, uint8_t value)
c886c54d8cf1 Added save states to SMS emulation
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parents: 1401
diff changeset
143 {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
144 z80_context *z80 = vcontext;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
145 sms_context *sms = z80->system;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
146 location &= 3;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
147 sms->ram[0x1FFC + location] = value;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
148 sms->bank_regs[location] = value;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
149 update_mem_map(location, sms, value);
1141
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diff changeset
150 return vcontext;
7e199bebde2f Initial support for Sega's family of SMS mappers
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parents: 1130
diff changeset
151 }
7e199bebde2f Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
152
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Michael Pavone <pavone@retrodev.com>
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diff changeset
153 static void *cart_ram_write(uint32_t location, void *vcontext, uint8_t value)
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
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parents: 1148
diff changeset
154 {
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parents: 1148
diff changeset
155 z80_context *z80 = vcontext;
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
156 sms_context *sms = z80->system;
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Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
157 if (sms->bank_regs[0] & 8) {
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
158 //cartridge RAM is enabled
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Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
159 location &= 0x3FFF;
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Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
160 z80->mem_pointers[2][location] = value;
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parents: 1148
diff changeset
161 z80_handle_code_write(0x8000 + location, z80);
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
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parents: 1148
diff changeset
162 }
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parents: 1148
diff changeset
163 return vcontext;
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parents: 1148
diff changeset
164 }
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parents: 1148
diff changeset
165
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parents: 1148
diff changeset
166 uint8_t debug_commands(system_header *system, char *input_buf)
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parents: 1148
diff changeset
167 {
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diff changeset
168 sms_context *sms = (sms_context *)system;
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diff changeset
169 switch(input_buf[0])
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parents: 1148
diff changeset
170 {
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parents: 1148
diff changeset
171 case 'v':
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diff changeset
172 if (input_buf[1] == 'r') {
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diff changeset
173 vdp_print_reg_explain(sms->vdp);
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parents: 1148
diff changeset
174 } else if (input_buf[1] == 's') {
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diff changeset
175 vdp_print_sprite_table(sms->vdp);
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parents: 1148
diff changeset
176 } else {
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
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parents: 1148
diff changeset
177 return 0;
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diff changeset
178 }
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parents: 1148
diff changeset
179 break;
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parents: 1148
diff changeset
180 }
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diff changeset
181 return 1;
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diff changeset
182 }
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Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
183
1117
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
184 static memmap_chunk io_map[] = {
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
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parents:
diff changeset
185 {0x00, 0x40, 0xFF, 0, 0, 0, NULL, NULL, NULL, NULL, memory_io_write},
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parents:
diff changeset
186 {0x40, 0x80, 0xFF, 0, 0, 0, NULL, NULL, NULL, hv_read, sms_psg_write},
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parents:
diff changeset
187 {0x80, 0xC0, 0xFF, 0, 0, 0, NULL, NULL, NULL, vdp_read, vdp_write},
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parents:
diff changeset
188 {0xC0, 0x100,0xFF, 0, 0, 0, NULL, NULL, NULL, io_read, NULL}
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parents:
diff changeset
189 };
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parents:
diff changeset
190
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
191 static void set_speed_percent(system_header * system, uint32_t percent)
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
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parents:
diff changeset
192 {
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
193 sms_context *context = (sms_context *)system;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
194 uint32_t old_clock = context->master_clock;
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Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
195 context->master_clock = ((uint64_t)context->normal_clock * (uint64_t)percent) / 100;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
196
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
197 psg_adjust_master_clock(context->psg, context->master_clock);
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
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parents:
diff changeset
198 }
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
199
1433
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parents: 1401
diff changeset
200 void sms_serialize(sms_context *sms, serialize_buffer *buf)
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parents: 1401
diff changeset
201 {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
202 start_section(buf, SECTION_Z80);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
203 z80_serialize(sms->z80, buf);
c886c54d8cf1 Added save states to SMS emulation
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parents: 1401
diff changeset
204 end_section(buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
205
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
206 start_section(buf, SECTION_VDP);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
207 vdp_serialize(sms->vdp, buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
208 end_section(buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
209
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
210 start_section(buf, SECTION_PSG);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
211 psg_serialize(sms->psg, buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
212 end_section(buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
213
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
214 start_section(buf, SECTION_SEGA_IO_1);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
215 io_serialize(sms->io.ports, buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
216 end_section(buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
217
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
218 start_section(buf, SECTION_SEGA_IO_2);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
219 io_serialize(sms->io.ports + 1, buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
220 end_section(buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
221
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
222 start_section(buf, SECTION_MAIN_RAM);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
223 save_int8(buf, sizeof(sms->ram) / 1024);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
224 save_buffer8(buf, sms->ram, sizeof(sms->ram));
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
225 end_section(buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
226
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
227 start_section(buf, SECTION_MAPPER);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
228 save_int8(buf, 1);//mapper type, 1 for Sega mapper
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
229 save_buffer8(buf, sms->bank_regs, sizeof(sms->bank_regs));
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
230 end_section(buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
231
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
232 start_section(buf, SECTION_CART_RAM);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
233 save_int8(buf, SMS_CART_RAM_SIZE / 1024);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
234 save_buffer8(buf, sms->cart_ram, SMS_CART_RAM_SIZE);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
235 end_section(buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
236 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
237
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
238 static void ram_deserialize(deserialize_buffer *buf, void *vsms)
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
239 {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
240 sms_context *sms = vsms;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
241 uint32_t ram_size = load_int8(buf) * 1024;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
242 if (ram_size > sizeof(sms->ram)) {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
243 fatal_error("State has a RAM size of %d bytes", ram_size);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
244 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
245 load_buffer8(buf, sms->ram, ram_size);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
246 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
247
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
248 static void cart_ram_deserialize(deserialize_buffer *buf, void *vsms)
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
249 {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
250 sms_context *sms = vsms;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
251 uint32_t ram_size = load_int8(buf) * 1024;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
252 if (ram_size > SMS_CART_RAM_SIZE) {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
253 fatal_error("State has a cart RAM size of %d bytes", ram_size);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
254 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
255 load_buffer8(buf, sms->cart_ram, ram_size);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
256 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
257
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
258 static void mapper_deserialize(deserialize_buffer *buf, void *vsms)
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
259 {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
260 sms_context *sms = vsms;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
261 uint8_t mapper_type = load_int8(buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
262 if (mapper_type != 1) {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
263 warning("State contains an unrecognized mapper type %d, it may be from a newer version of BlastEm\n", mapper_type);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
264 return;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
265 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
266 for (int i = 0; i < sizeof(sms->bank_regs); i++)
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
267 {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
268 sms->bank_regs[i] = load_int8(buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
269 update_mem_map(i, sms, sms->bank_regs[i]);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
270 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
271 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
272
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
273 void sms_deserialize(deserialize_buffer *buf, sms_context *sms)
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
274 {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
275 register_section_handler(buf, (section_handler){.fun = z80_deserialize, .data = sms->z80}, SECTION_Z80);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
276 register_section_handler(buf, (section_handler){.fun = vdp_deserialize, .data = sms->vdp}, SECTION_VDP);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
277 register_section_handler(buf, (section_handler){.fun = psg_deserialize, .data = sms->psg}, SECTION_PSG);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
278 register_section_handler(buf, (section_handler){.fun = io_deserialize, .data = sms->io.ports}, SECTION_SEGA_IO_1);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
279 register_section_handler(buf, (section_handler){.fun = io_deserialize, .data = sms->io.ports + 1}, SECTION_SEGA_IO_2);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
280 register_section_handler(buf, (section_handler){.fun = ram_deserialize, .data = sms}, SECTION_MAIN_RAM);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
281 register_section_handler(buf, (section_handler){.fun = mapper_deserialize, .data = sms}, SECTION_MAPPER);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
282 register_section_handler(buf, (section_handler){.fun = cart_ram_deserialize, .data = sms}, SECTION_CART_RAM);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
283 //TODO: cart RAM
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
284 while (buf->cur_pos < buf->size)
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
285 {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
286 load_section(buf);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
287 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
288 z80_invalidate_code_range(sms->z80, 0xC000, 0x10000);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
289 if (sms->bank_regs[0] & 8) {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
290 //cart RAM is enabled, invalidate the region in case there is any code there
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
291 z80_invalidate_code_range(sms->z80, 0x8000, 0xC000);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
292 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
293 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
294
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
295 static void save_state(sms_context *sms, uint8_t slot)
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
296 {
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: 1433
diff changeset
297 char *save_path = get_slot_name(&sms->header, slot, "state");
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
298 serialize_buffer state;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
299 init_serialize(&state);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
300 sms_serialize(sms, &state);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
301 save_to_file(&state, save_path);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
302 printf("Saved state to %s\n", save_path);
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: 1433
diff changeset
303 free(save_path);
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
304 free(state.data);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
305 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
306
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
307 static uint8_t load_state_path(sms_context *sms, char *path)
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
308 {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
309 deserialize_buffer state;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
310 uint8_t ret;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
311 if ((ret = load_from_file(&state, path))) {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
312 sms_deserialize(&state, sms);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
313 free(state.data);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
314 printf("Loaded %s\n", path);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
315 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
316 return ret;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
317 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
318
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
319 static uint8_t load_state(system_header *system, uint8_t slot)
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
320 {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
321 sms_context *sms = (sms_context *)system;
1480
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
322 char *statepath = get_slot_name(system, slot, "state");
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
323 uint8_t ret;
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
324 if (!sms->z80->native_pc) {
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
325 ret = get_modification_time(statepath) != 0;
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
326 if (ret) {
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
327 system->delayed_load_slot = slot + 1;
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
328 }
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
329 goto done;
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
330
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
331 }
1480
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
332 ret = load_state_path(sms, statepath);
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
333 done:
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
334 free(statepath);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
335 return ret;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
336 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
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:
diff changeset
338 static void run_sms(system_header *system)
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
339 {
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
340 sms_context *sms = (sms_context *)system;
1377
e587f16e7d3d Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
341 uint32_t target_cycle = sms->z80->current_cycle + 3420*16;
1184
b1147418254a Overscan is now configurable
Michael Pavone <pavone@retrodev.com>
parents: 1162
diff changeset
342 //TODO: PAL support
b1147418254a Overscan is now configurable
Michael Pavone <pavone@retrodev.com>
parents: 1162
diff changeset
343 render_set_video_standard(VID_NTSC);
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
344 while (!sms->should_return)
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
345 {
1480
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
346 if (system->delayed_load_slot) {
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
347 load_state(system, system->delayed_load_slot - 1);
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
348 system->delayed_load_slot = 0;
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
349
8464a3f09b94 Get SMS savestates working in Nuklear UI
Michael Pavone <pavone@retrodev.com>
parents: 1478
diff changeset
350 }
1129
6b5c92b6205c Enabled Z80 debugger in PBC mode
Michael Pavone <pavone@retrodev.com>
parents: 1126
diff changeset
351 if (system->enter_debugger && sms->z80->pc) {
6b5c92b6205c Enabled Z80 debugger in PBC mode
Michael Pavone <pavone@retrodev.com>
parents: 1126
diff changeset
352 system->enter_debugger = 0;
6b5c92b6205c Enabled Z80 debugger in PBC mode
Michael Pavone <pavone@retrodev.com>
parents: 1126
diff changeset
353 zdebugger(sms->z80, sms->z80->pc);
6b5c92b6205c Enabled Z80 debugger in PBC mode
Michael Pavone <pavone@retrodev.com>
parents: 1126
diff changeset
354 }
1377
e587f16e7d3d Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
355 if (sms->z80->nmi_start == CYCLE_NEVER) {
e587f16e7d3d Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
356 uint32_t nmi = vdp_next_nmi(sms->vdp);
e587f16e7d3d Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
357 if (nmi != CYCLE_NEVER) {
e587f16e7d3d Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
358 z80_assert_nmi(sms->z80, nmi);
e587f16e7d3d Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
359 }
e587f16e7d3d Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
360 }
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
361 z80_run(sms->z80, target_cycle);
1209
5ee6b6345ea9 Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents: 1201
diff changeset
362 if (sms->z80->reset) {
5ee6b6345ea9 Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents: 1201
diff changeset
363 z80_clear_reset(sms->z80, sms->z80->current_cycle + 128*15);
5ee6b6345ea9 Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents: 1201
diff changeset
364 }
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
365 target_cycle = sms->z80->current_cycle;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
366 vdp_run_context(sms->vdp, target_cycle);
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
367 psg_run(sms->psg, target_cycle);
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
368
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
369 if (system->save_state) {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
370 while (!sms->z80->pc) {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
371 //advance Z80 to an instruction boundary
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
372 z80_run(sms->z80, sms->z80->current_cycle + 1);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
373 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
374 save_state(sms, system->save_state - 1);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
375 system->save_state = 0;
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
376 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
377
1377
e587f16e7d3d Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
378 target_cycle += 3420*16;
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
379 if (target_cycle > 0x10000000) {
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
380 uint32_t adjust = sms->z80->current_cycle - 3420*262*2;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
381 io_adjust_cycles(sms->io.ports, sms->z80->current_cycle, adjust);
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
382 io_adjust_cycles(sms->io.ports+1, sms->z80->current_cycle, adjust);
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
383 z80_adjust_cycles(sms->z80, adjust);
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
384 vdp_adjust_cycles(sms->vdp, adjust);
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
385 sms->psg->cycles -= adjust;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
386 target_cycle -= adjust;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
387 }
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
388 }
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
389 bindings_release_capture();
1401
b56c8c51ca5d Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents: 1384
diff changeset
390 vdp_release_framebuffer(sms->vdp);
1551
ce1f93be0104 Small cleanup to audio interface between emulation code and renderer backend
Michael Pavone <pavone@retrodev.com>
parents: 1480
diff changeset
391 render_pause_source(sms->psg->audio);
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
392 sms->should_return = 0;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
393 }
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
394
1401
b56c8c51ca5d Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents: 1384
diff changeset
395 static void resume_sms(system_header *system)
b56c8c51ca5d Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents: 1384
diff changeset
396 {
b56c8c51ca5d Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents: 1384
diff changeset
397 sms_context *sms = (sms_context *)system;
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
398 bindings_reacquire_capture();
1401
b56c8c51ca5d Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents: 1384
diff changeset
399 vdp_reacquire_framebuffer(sms->vdp);
1551
ce1f93be0104 Small cleanup to audio interface between emulation code and renderer backend
Michael Pavone <pavone@retrodev.com>
parents: 1480
diff changeset
400 render_resume_source(sms->psg->audio);
1401
b56c8c51ca5d Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents: 1384
diff changeset
401 run_sms(system);
b56c8c51ca5d Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents: 1384
diff changeset
402 }
b56c8c51ca5d Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents: 1384
diff changeset
403
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
404 static void start_sms(system_header *system, char *statefile)
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
405 {
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
406 sms_context *sms = (sms_context *)system;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
407
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
408 z80_assert_reset(sms->z80, 0);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
409 z80_clear_reset(sms->z80, 128*15);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
410
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
411 if (statefile) {
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
412 load_state_path(sms, statefile);
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
413 }
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
414
1129
6b5c92b6205c Enabled Z80 debugger in PBC mode
Michael Pavone <pavone@retrodev.com>
parents: 1126
diff changeset
415 if (system->enter_debugger) {
6b5c92b6205c Enabled Z80 debugger in PBC mode
Michael Pavone <pavone@retrodev.com>
parents: 1126
diff changeset
416 system->enter_debugger = 0;
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
417 zinsert_breakpoint(sms->z80, sms->z80->pc, (uint8_t *)zdebugger);
1129
6b5c92b6205c Enabled Z80 debugger in PBC mode
Michael Pavone <pavone@retrodev.com>
parents: 1126
diff changeset
418 }
6b5c92b6205c Enabled Z80 debugger in PBC mode
Michael Pavone <pavone@retrodev.com>
parents: 1126
diff changeset
419
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
420 run_sms(system);
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
421 }
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
422
1209
5ee6b6345ea9 Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents: 1201
diff changeset
423 static void soft_reset(system_header *system)
5ee6b6345ea9 Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents: 1201
diff changeset
424 {
5ee6b6345ea9 Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents: 1201
diff changeset
425 sms_context *sms = (sms_context *)system;
5ee6b6345ea9 Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents: 1201
diff changeset
426 z80_assert_reset(sms->z80, sms->z80->current_cycle);
5ee6b6345ea9 Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents: 1201
diff changeset
427 sms->z80->target_cycle = sms->z80->sync_cycle = sms->z80->current_cycle;
5ee6b6345ea9 Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents: 1201
diff changeset
428 }
5ee6b6345ea9 Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents: 1201
diff changeset
429
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
430 static void free_sms(system_header *system)
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
431 {
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
432 sms_context *sms = (sms_context *)system;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
433 vdp_free(sms->vdp);
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
434 z80_options_free(sms->z80->options);
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
435 free(sms->z80);
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
436 psg_free(sms->psg);
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
437 free(sms);
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
438 }
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
439
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
440 static uint16_t get_open_bus_value(system_header *system)
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
441 {
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
442 return 0xFFFF;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
443 }
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
444
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
445 static void request_exit(system_header *system)
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
446 {
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
447 sms_context *sms = (sms_context *)system;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
448 sms->should_return = 1;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
449 }
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
450
1120
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
451 static void inc_debug_mode(system_header *system)
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
452 {
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
453 sms_context *sms = (sms_context *)system;
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
454 sms->vdp->debug++;
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
455 if (sms->vdp->debug == 7) {
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
456 sms->vdp->debug = 0;
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
457 }
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
458 }
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
459
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
460 static void inc_debug_pal(system_header *system)
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
461 {
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
462 sms_context *sms = (sms_context *)system;
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
463 sms->vdp->debug_pal++;
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
464 if (sms->vdp->debug_pal == 4) {
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
465 sms->vdp->debug_pal = 0;
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
466 }
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
467 }
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
468
1384
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
469 static void load_save(system_header *system)
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
470 {
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
471 //TODO: Implement me
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
472 }
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
473
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
474 static void persist_save(system_header *system)
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
475 {
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
476 //TODO: Implement me
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
477 }
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
478
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
479 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: 1555
diff changeset
480 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
481 sms_context *sms = (sms_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
482 if (gamepad_num == GAMEPAD_MAIN_UNIT) {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
483 if (button == MAIN_UNIT_PAUSE) {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
484 vdp_pbc_pause(sms->vdp);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
485 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
486 } else {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
487 io_gamepad_down(&sms->io, gamepad_num, button);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
488 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
489 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
490
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
491 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: 1555
diff changeset
492 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
493 sms_context *sms = (sms_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
494 io_gamepad_up(&sms->io, gamepad_num, button);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
495 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
496
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
497 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: 1555
diff changeset
498 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
499 sms_context *sms = (sms_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
500 io_mouse_down(&sms->io, mouse_num, button);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
501 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
502
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
503 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: 1555
diff changeset
504 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
505 sms_context *sms = (sms_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
506 io_mouse_up(&sms->io, mouse_num, button);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
507 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
508
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
509 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: 1555
diff changeset
510 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
511 sms_context *sms = (sms_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
512 io_mouse_motion_absolute(&sms->io, mouse_num, x, y);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
513 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
514
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
515 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: 1555
diff changeset
516 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
517 sms_context *sms = (sms_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
518 io_mouse_motion_relative(&sms->io, mouse_num, x, y);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
519 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
520
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
521 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: 1555
diff changeset
522 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
523 sms_context *sms = (sms_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
524 io_keyboard_down(&sms->io, scancode);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
525 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
526
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
527 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: 1555
diff changeset
528 {
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
529 sms_context *sms = (sms_context *)system;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
530 io_keyboard_up(&sms->io, scancode);
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
531 }
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
532
1201
aee2177a1630 Use filename for game title in SMS mode
Michael Pavone <pavone@retrodev.com>
parents: 1184
diff changeset
533 sms_context *alloc_configure_sms(system_media *media, uint32_t opts, uint8_t force_region, rom_info *info_out)
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
534 {
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
535 memset(info_out, 0, sizeof(*info_out));
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
536 sms_context *sms = calloc(1, sizeof(sms_context));
1201
aee2177a1630 Use filename for game title in SMS mode
Michael Pavone <pavone@retrodev.com>
parents: 1184
diff changeset
537 uint32_t rom_size = nearest_pow2(media->size);
1141
7e199bebde2f Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
538 memmap_chunk memory_map[6];
1201
aee2177a1630 Use filename for game title in SMS mode
Michael Pavone <pavone@retrodev.com>
parents: 1184
diff changeset
539 if (media->size > 0xC000) {
1141
7e199bebde2f Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
540 info_out->map_chunks = 6;
7e199bebde2f Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
541 uint8_t *ram_reg_overlap = sms->ram + sizeof(sms->ram) - 4;
1201
aee2177a1630 Use filename for game title in SMS mode
Michael Pavone <pavone@retrodev.com>
parents: 1184
diff changeset
542 memory_map[0] = (memmap_chunk){0x0000, 0x0400, 0xFFFF, 0, 0, MMAP_READ, media->buffer, NULL, NULL, NULL, NULL};
1142
5c8b1c33ca10 Invalidate translated code on a cartridge bank change in SMS mode. Fix handling of bank 0
Michael Pavone <pavone@retrodev.com>
parents: 1141
diff changeset
543 memory_map[1] = (memmap_chunk){0x0400, 0x4000, 0xFFFF, 0, 0, MMAP_READ|MMAP_PTR_IDX|MMAP_CODE, NULL, NULL, NULL, NULL, NULL};
5c8b1c33ca10 Invalidate translated code on a cartridge bank change in SMS mode. Fix handling of bank 0
Michael Pavone <pavone@retrodev.com>
parents: 1141
diff changeset
544 memory_map[2] = (memmap_chunk){0x4000, 0x8000, 0x3FFF, 0, 1, MMAP_READ|MMAP_PTR_IDX|MMAP_CODE, NULL, NULL, NULL, NULL, NULL};
1149
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
545 memory_map[3] = (memmap_chunk){0x8000, 0xC000, 0x3FFF, 0, 2, MMAP_READ|MMAP_PTR_IDX|MMAP_CODE, NULL, NULL, NULL, NULL, cart_ram_write};
1142
5c8b1c33ca10 Invalidate translated code on a cartridge bank change in SMS mode. Fix handling of bank 0
Michael Pavone <pavone@retrodev.com>
parents: 1141
diff changeset
546 memory_map[4] = (memmap_chunk){0xC000, 0xFFFC, sizeof(sms->ram)-1, 0, 0, MMAP_READ|MMAP_WRITE|MMAP_CODE, sms->ram, NULL, NULL, NULL, NULL};
1162
c4ea535cf57e Forgot that the expansion to 32-bit values for 16-bit addresses is not done when calling a C function to handle a memory operation. Mask on location in mapper_write was needed afterall
Michael Pavone <pavone@retrodev.com>
parents: 1154
diff changeset
547 memory_map[5] = (memmap_chunk){0xFFFC, 0x10000, 0x0003, 0, 0, MMAP_READ, ram_reg_overlap, NULL, NULL, NULL, mapper_write};
1141
7e199bebde2f Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
548 } else {
7e199bebde2f Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
549 info_out->map_chunks = 2;
1201
aee2177a1630 Use filename for game title in SMS mode
Michael Pavone <pavone@retrodev.com>
parents: 1184
diff changeset
550 memory_map[0] = (memmap_chunk){0x0000, 0xC000, rom_size-1, 0, 0, MMAP_READ, media->buffer, NULL, NULL, NULL, NULL};
1141
7e199bebde2f Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
551 memory_map[1] = (memmap_chunk){0xC000, 0x10000, sizeof(sms->ram)-1, 0, 0, MMAP_READ|MMAP_WRITE|MMAP_CODE, sms->ram, NULL, NULL, NULL, NULL};
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
552 };
1141
7e199bebde2f Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
553 info_out->map = malloc(sizeof(memmap_chunk) * info_out->map_chunks);
7e199bebde2f Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
554 memcpy(info_out->map, memory_map, sizeof(memmap_chunk) * info_out->map_chunks);
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
555 z80_options *zopts = malloc(sizeof(z80_options));
1141
7e199bebde2f Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
556 init_z80_opts(zopts, info_out->map, info_out->map_chunks, io_map, 4, 15, 0xFF);
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: 1129
diff changeset
557 sms->z80 = init_z80_context(zopts);
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
558 sms->z80->system = sms;
1149
6b0da6021544 Don't lock up CPU if performing a read with writes configured when in PBC mode. Allow access to VDP debug commands from Z80 debugger in PBC mode. Handle Mode 4 in VDP debug print functions
Michael Pavone <pavone@retrodev.com>
parents: 1148
diff changeset
559 sms->z80->options->gen.debug_cmd_handler = debug_commands;
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
560
1201
aee2177a1630 Use filename for game title in SMS mode
Michael Pavone <pavone@retrodev.com>
parents: 1184
diff changeset
561 sms->rom = media->buffer;
1141
7e199bebde2f Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
562 sms->rom_size = rom_size;
7e199bebde2f Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
563 if (info_out->map_chunks > 2) {
7e199bebde2f Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
564 sms->z80->mem_pointers[0] = sms->rom;
7e199bebde2f Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
565 sms->z80->mem_pointers[1] = sms->rom + 0x4000;
7e199bebde2f Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
566 sms->z80->mem_pointers[2] = sms->rom + 0x8000;
1162
c4ea535cf57e Forgot that the expansion to 32-bit values for 16-bit addresses is not done when calling a C function to handle a memory operation. Mask on location in mapper_write was needed afterall
Michael Pavone <pavone@retrodev.com>
parents: 1154
diff changeset
567 sms->bank_regs[1] = 0;
c4ea535cf57e Forgot that the expansion to 32-bit values for 16-bit addresses is not done when calling a C function to handle a memory operation. Mask on location in mapper_write was needed afterall
Michael Pavone <pavone@retrodev.com>
parents: 1154
diff changeset
568 sms->bank_regs[2] = 0x4000 >> 14;
c4ea535cf57e Forgot that the expansion to 32-bit values for 16-bit addresses is not done when calling a C function to handle a memory operation. Mask on location in mapper_write was needed afterall
Michael Pavone <pavone@retrodev.com>
parents: 1154
diff changeset
569 sms->bank_regs[3] = 0x8000 >> 14;
1141
7e199bebde2f Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
570 }
7e199bebde2f Initial support for Sega's family of SMS mappers
Michael Pavone <pavone@retrodev.com>
parents: 1130
diff changeset
571
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
572 //TODO: Detect region and pick master clock based off of that
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
573 sms->normal_clock = sms->master_clock = 53693175;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
574
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
575 sms->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
576 psg_init(sms->psg, sms->master_clock, 15*16);
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
577
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
578 sms->vdp = malloc(sizeof(vdp_context));
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
579 init_vdp_context(sms->vdp, 0);
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
580 sms->vdp->system = &sms->header;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
581
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
582 info_out->save_type = SAVE_NONE;
1201
aee2177a1630 Use filename for game title in SMS mode
Michael Pavone <pavone@retrodev.com>
parents: 1184
diff changeset
583 info_out->name = strdup(media->name);
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
584
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
585 setup_io_devices(config, info_out, &sms->io);
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
586 sms->header.has_keyboard = io_has_keyboard(&sms->io);
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
587
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
588 sms->header.set_speed_percent = set_speed_percent;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
589 sms->header.start_context = start_sms;
1401
b56c8c51ca5d Properly release and reacquire framebuffer pointer when switching contexts. Hopefully fixes the LOCKRECT issue some people are seeing with the SDL 2 fallback renderer
Michael Pavone <pavone@retrodev.com>
parents: 1384
diff changeset
590 sms->header.resume_context = resume_sms;
1384
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
591 sms->header.load_save = load_save;
1df16f5985f3 Added stub load_save and persist_save functions to SMS system so that we don't crash when switching games via the menu
Michael Pavone <pavone@retrodev.com>
parents: 1379
diff changeset
592 sms->header.persist_save = persist_save;
1433
c886c54d8cf1 Added save states to SMS emulation
Michael Pavone <pavone@retrodev.com>
parents: 1401
diff changeset
593 sms->header.load_state = load_state;
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
594 sms->header.free_context = free_sms;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
595 sms->header.get_open_bus_value = get_open_bus_value;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
596 sms->header.request_exit = request_exit;
1209
5ee6b6345ea9 Implement SMS hardware soft reset (note only available on real hardware on the Genesis in PBC mode)
Michael Pavone <pavone@retrodev.com>
parents: 1201
diff changeset
597 sms->header.soft_reset = soft_reset;
1120
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
598 sms->header.inc_debug_mode = inc_debug_mode;
e9369d6f0101 Somewhat broken implementation of Mode 4
Michael Pavone <pavone@retrodev.com>
parents: 1119
diff changeset
599 sms->header.inc_debug_pal = inc_debug_pal;
1583
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
600 sms->header.gamepad_down = gamepad_down;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
601 sms->header.gamepad_up = gamepad_up;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
602 sms->header.mouse_down = mouse_down;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
603 sms->header.mouse_up = mouse_up;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
604 sms->header.mouse_motion_absolute = mouse_motion_absolute;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
605 sms->header.mouse_motion_relative = mouse_motion_relative;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
606 sms->header.keyboard_down = keyboard_down;
430dd12e4010 Refactor to split device bindings from IO emulation code
Michael Pavone <pavone@retrodev.com>
parents: 1555
diff changeset
607 sms->header.keyboard_up = keyboard_up;
1377
e587f16e7d3d Implemented SMS pause button
Michael Pavone <pavone@retrodev.com>
parents: 1371
diff changeset
608 sms->header.type = SYSTEM_SMS;
1117
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
609
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
610 return sms;
928a65750345 Initial support for Genesis/Megadrive PBC mode. VDP still needs Mode 4 to be useful.
Michael Pavone <pavone@retrodev.com>
parents:
diff changeset
611 }