Mercurial > repos > blastem

comparison genesis.h @ 1103:22e87b739ad6

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
WIP split of 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>
date Fri, 09 Dec 2016 09:48:48 -0800
parents blastem.h@5fb64487b6e1
children 2eb54e24914e
comparison
equal deleted inserted replaced
1102:c15896605bf2 1103:22e87b739ad6
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