Mercurial > repos > blastem
view romdb.h @ 1863:d60f2d7c02a5
Differentiate between the full Sega mapper and the SRAM only one. Fixes crash on save state load for Phantasy Star IV and other games that use the same mapper
author | Michael Pavone <pavone@retrodev.com> |
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date | Tue, 14 May 2019 23:20:35 -0700 |
parents | c206a422d466 |
children | 0f54a898db03 |
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#ifndef ROMDB_H_ #define ROMDB_H_ #define REGION_J 1 #define REGION_U 2 #define REGION_E 4 #define RAM_FLAG_ODD 0x18 #define RAM_FLAG_EVEN 0x10 #define RAM_FLAG_BOTH 0x00 #define RAM_FLAG_MASK RAM_FLAG_ODD #define SAVE_I2C 0x01 #define SAVE_NOR 0x02 #define SAVE_NONE 0xFF #include "tern.h" #include "serialize.h" typedef struct { uint32_t start; uint32_t end; uint16_t sda_write_mask; uint16_t scl_mask; uint8_t sda_read_bit; } eeprom_map; typedef struct { uint8_t *buffer; uint8_t *page_buffer; uint32_t size; uint32_t page_size; uint32_t current_page; uint32_t last_write_cycle; uint32_t cmd_address1; uint32_t cmd_address2; uint16_t product_id; uint8_t mode; uint8_t cmd_state; uint8_t alt_cmd; uint8_t bus_flags; } nor_state; enum { MAPPER_NONE, MAPPER_SEGA, MAPPER_SEGA_SRAM, MAPPER_REALTEC, MAPPER_XBAND, MAPPER_MULTI_GAME, MAPPER_JCART }; typedef struct rom_info rom_info; #include "memmap.h" struct rom_info { char *name; memmap_chunk *map; uint8_t *save_buffer; void *rom; eeprom_map *eeprom_map; char *port1_override; char *port2_override; char *ext_override; char *mouse_mode; nor_state *nor; uint32_t num_eeprom; uint32_t map_chunks; uint32_t rom_size; uint32_t save_size; uint32_t save_mask; uint16_t mapper_start_index; uint8_t save_type; uint8_t save_bus; //only used for NOR currently uint8_t mapper_type; uint8_t regions; uint8_t is_save_lock_on; //Does the save buffer actually belong to a lock-on cart? }; #define GAME_ID_OFF 0x183 #define GAME_ID_LEN 8 tern_node *load_rom_db(); rom_info configure_rom(tern_node *rom_db, void *vrom, uint32_t rom_size, void *lock_on, uint32_t lock_on_size, memmap_chunk const *base_map, uint32_t base_chunks); rom_info configure_rom_heuristics(uint8_t *rom, uint32_t rom_size, memmap_chunk const *base_map, uint32_t base_chunks); uint8_t translate_region_char(uint8_t c); char const *save_type_name(uint8_t save_type); //Note: free_rom_info only frees things pointed to by a rom_info struct, not the struct itself //this is because rom_info structs are typically stack allocated void free_rom_info(rom_info *info); typedef struct system_header system_header; void cart_serialize(system_header *sys, serialize_buffer *buf); void cart_deserialize(deserialize_buffer *buf, void *vcontext); #endif //ROMDB_H_