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Diffstat (limited to 'genesis.h')
| -rw-r--r-- | genesis.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/genesis.h b/genesis.h new file mode 100644 index 0000000..11f132e --- /dev/null +++ b/genesis.h @@ -0,0 +1,74 @@ +/* + Copyright 2013 Michael Pavone + This file is part of BlastEm. + BlastEm is free software distributed under the terms of the GNU General Public License version 3 or greater. See COPYING for full license text. +*/ +#ifndef GENESIS_H_ +#define GENESIS_H_ + +#include <stdint.h> +#include "m68k_core.h" +#include "z80_to_x86.h" +#include "ym2612.h" +#include "vdp.h" +#include "psg.h" +#include "io.h" +#include "romdb.h" +#include "arena.h" + +typedef struct genesis_context genesis_context; + +struct genesis_context { + m68k_context *m68k; + z80_context *z80; + vdp_context *vdp; + ym2612_context *ym; + psg_context *psg; + genesis_context *next_context; + uint16_t *cart; + uint16_t *lock_on; + uint16_t *work_ram; + uint8_t *zram; + void *extra; + arena *arena; + char *next_rom; + char *save_dir; + uint8_t *save_storage; + eeprom_map *eeprom_map; + uint32_t num_eeprom; + uint32_t save_size; + uint32_t save_ram_mask; + uint32_t master_clock; //Current master clock value + uint32_t normal_clock; //Normal master clock (used to restore master clock after turbo mode) + uint32_t frame_end; + uint32_t max_cycles; + uint8_t bank_regs[8]; + uint16_t mapper_start_index; + uint8_t save_type; + io_port ports[3]; + uint8_t version_reg; + uint8_t bus_busy; + uint8_t should_exit; + uint8_t save_state; + uint8_t mouse_mode; + uint8_t mouse_captured; + eeprom_state eeprom; +}; + +extern genesis_context * genesis; +extern int break_on_sync; + +#define RAM_WORDS 32 * 1024 +#define Z80_RAM_BYTES 8 * 1024 + +uint16_t read_dma_value(uint32_t address); +uint16_t get_open_bus_value(); +m68k_context * sync_components(m68k_context *context, uint32_t address); +m68k_context * debugger(m68k_context * context, uint32_t address); +void set_speed_percent(genesis_context * context, uint32_t percent); +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); +void start_genesis(genesis_context *gen, char *statefile, uint8_t *debugger); +void free_genesis(genesis_context *gen); + +#endif //GENESIS_H_ + |