Mercurial > repos > blastem
view genesis.h @ 1637:95880d947257
Fix for VRAM byte write order broke VDP FIFO testing ROM results. This change cleans up VRAM writes and fixes the regression while preserving the correct VRAM byte write order
author | Michael Pavone <pavone@retrodev.com> |
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date | Sun, 11 Nov 2018 22:39:29 -0800 |
parents | 360d5bab199f |
children | b7ecd0d6a77b b500e971da75 |
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/* 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 "system.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" #include "i2c.h" typedef struct genesis_context genesis_context; struct genesis_context { system_header header; m68k_context *m68k; z80_context *z80; vdp_context *vdp; ym2612_context *ym; psg_context *psg; uint16_t *cart; uint16_t *lock_on; uint16_t *work_ram; uint8_t *zram; void *extra; uint8_t *save_storage; void *mapper_temp; 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; uint32_t int_latency_prev1; uint32_t int_latency_prev2; uint32_t reset_cycle; uint8_t bank_regs[8]; uint16_t mapper_start_index; uint8_t mapper_type; uint8_t save_type; sega_io io; uint8_t version_reg; uint8_t bus_busy; uint8_t reset_requested; eeprom_state eeprom; nor_state nor; }; #define RAM_WORDS 32 * 1024 #define Z80_RAM_BYTES 8 * 1024 uint16_t read_dma_value(uint32_t address); m68k_context * sync_components(m68k_context *context, uint32_t address); genesis_context *alloc_config_genesis(void *rom, uint32_t rom_size, void *lock_on, uint32_t lock_on_size, uint32_t system_opts, uint8_t force_region); void genesis_serialize(genesis_context *gen, serialize_buffer *buf, uint32_t m68k_pc); void genesis_deserialize(deserialize_buffer *buf, genesis_context *gen); #endif //GENESIS_H_