Mercurial > repos > blastem
comparison genesis.h @ 1103:22e87b739ad6
WIP split of ROM loading/argument parsing from Genesis emulation code. Compiles and doesn't crash, but nothing works. Still a few too many globals as well.
author | Michael Pavone <pavone@retrodev.com> |
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date | Fri, 09 Dec 2016 09:48:48 -0800 |
parents | blastem.h@5fb64487b6e1 |
children | 2eb54e24914e |
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1102:c15896605bf2 | 1103:22e87b739ad6 |
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1 /* | |
2 Copyright 2013 Michael Pavone | |
3 This file is part of BlastEm. | |
4 BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text. | |
5 */ | |
6 #ifndef GENESIS_H_ | |
7 #define GENESIS_H_ | |
8 | |
9 #include <stdint.h> | |
10 #include "m68k_core.h" | |
11 #include "z80_to_x86.h" | |
12 #include "ym2612.h" | |
13 #include "vdp.h" | |
14 #include "psg.h" | |
15 #include "io.h" | |
16 #include "romdb.h" | |
17 #include "arena.h" | |
18 | |
19 typedef struct genesis_context genesis_context; | |
20 | |
21 struct genesis_context { | |
22 m68k_context *m68k; | |
23 z80_context *z80; | |
24 vdp_context *vdp; | |
25 ym2612_context *ym; | |
26 psg_context *psg; | |
27 genesis_context *next_context; | |
28 uint16_t *cart; | |
29 uint16_t *lock_on; | |
30 uint16_t *work_ram; | |
31 uint8_t *zram; | |
32 void *extra; | |
33 arena *arena; | |
34 char *next_rom; | |
35 char *save_dir; | |
36 uint8_t *save_storage; | |
37 eeprom_map *eeprom_map; | |
38 uint32_t num_eeprom; | |
39 uint32_t save_size; | |
40 uint32_t save_ram_mask; | |
41 uint32_t master_clock; //Current master clock value | |
42 uint32_t normal_clock; //Normal master clock (used to restore master clock after turbo mode) | |
43 uint32_t frame_end; | |
44 uint32_t max_cycles; | |
45 uint8_t bank_regs[8]; | |
46 uint16_t mapper_start_index; | |
47 uint8_t save_type; | |
48 io_port ports[3]; | |
49 uint8_t version_reg; | |
50 uint8_t bus_busy; | |
51 uint8_t should_exit; | |
52 uint8_t save_state; | |
53 uint8_t mouse_mode; | |
54 uint8_t mouse_captured; | |
55 eeprom_state eeprom; | |
56 }; | |
57 | |
58 extern genesis_context * genesis; | |
59 extern int break_on_sync; | |
60 | |
61 #define RAM_WORDS 32 * 1024 | |
62 #define Z80_RAM_BYTES 8 * 1024 | |
63 | |
64 uint16_t read_dma_value(uint32_t address); | |
65 uint16_t get_open_bus_value(); | |
66 m68k_context * sync_components(m68k_context *context, uint32_t address); | |
67 m68k_context * debugger(m68k_context * context, uint32_t address); | |
68 void set_speed_percent(genesis_context * context, uint32_t percent); | |
69 genesis_context *alloc_config_genesis(void *rom, uint32_t rom_size, void *lock_on, uint32_t lock_on_size, uint32_t ym_opts, uint8_t force_region, rom_info *info_out); | |
70 void start_genesis(genesis_context *gen, char *statefile, uint8_t *debugger); | |
71 void free_genesis(genesis_context *gen); | |
72 | |
73 #endif //GENESIS_H_ | |
74 |