diff options
Diffstat (limited to 'romdb.c')
| -rw-r--r-- | romdb.c | 31 |
1 files changed, 31 insertions, 0 deletions
@@ -10,6 +10,7 @@ #include "realtec.h" #include "nor.h" #include "sega_mapper.h" +#include "multi_game.h" #define DOM_TITLE_START 0x120 #define DOM_TITLE_END 0x150 @@ -301,6 +302,9 @@ rom_info configure_rom_heuristics(uint8_t *rom, uint32_t rom_size, memmap_chunk rom_info info; info.name = get_header_name(rom); info.regions = get_header_regions(rom); + info.is_save_lock_on = 0; + info.rom = rom; + info.rom_size = rom_size; add_memmap_header(&info, rom, rom_size, base_map, base_chunks); info.port1_override = info.port2_override = info.ext_override = info.mouse_mode = NULL; return info; @@ -681,6 +685,28 @@ void map_iter_fun(char *key, tern_val val, uint8_t valtype, void *data) map->mask = 0; map->flags = MMAP_READ; *value = strtol(tern_find_ptr_default(node, "value", "0"), NULL, 16); + } else if (!strcmp(dtype, "multi-game")) { + state->info->mapper_start_index = state->ptr_index++; + //make a mirror copy of the ROM so we can efficiently support arbitrary start offsets + state->rom = realloc(state->rom, state->rom_size * 2); + memcpy(state->rom + state->rom_size, state->rom, state->rom_size); + state->rom_size *= 2; + //make room for an extra map entry + state->info->map_chunks+=1; + state->info->map = realloc(state->info->map, sizeof(memmap_chunk) * state->info->map_chunks); + memset(state->info->map + state->info->map_chunks - 1, 0, sizeof(memmap_chunk) * 1); + map = state->info->map + state->index; + map->buffer = state->rom; + map->mask = calc_mask(state->rom_size, start, end); + map->flags = MMAP_READ | MMAP_PTR_IDX | MMAP_CODE; + map->ptr_index = state->info->mapper_start_index; + map++; + state->index++; + map->start = 0xA13000; + map->end = 0xA13100; + map->mask = 0xFF; + map->write_16 = write_multi_game_w; + map->write_8 = write_multi_game_b; } else { fatal_error("Invalid device type %s for ROM DB map entry %d with address %s\n", dtype, state->index, key); } @@ -742,6 +768,9 @@ rom_info configure_rom(tern_node *rom_db, void *vrom, uint32_t rom_size, void *l info.regions = get_header_regions(rom); } + info.is_save_lock_on = 0; + info.rom = vrom; + info.rom_size = rom_size; tern_node *map = tern_find_node(entry, "map"); if (map) { info.save_type = SAVE_NONE; @@ -768,6 +797,8 @@ rom_info configure_rom(tern_node *rom_db, void *vrom, uint32_t rom_size, void *l }; tern_foreach(map, map_iter_fun, &state); memcpy(info.map + state.index, base_map, sizeof(memmap_chunk) * base_chunks); + info.rom = state.rom; + info.rom_size = state.rom_size; } else { add_memmap_header(&info, rom, rom_size, base_map, base_chunks); } |