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-rw-r--r--romdb.c116
1 files changed, 70 insertions, 46 deletions
diff --git a/romdb.c b/romdb.c
index 8b7a4fc..211d4c4 100644
--- a/romdb.c
+++ b/romdb.c
@@ -616,6 +616,22 @@ tern_node *load_rom_db()
return db;
}
+void free_rom_info(rom_info *info)
+{
+ free(info->name);
+ if (info->save_type != SAVE_NONE) {
+ free(info->save_buffer);
+ if (info->save_type == SAVE_I2C) {
+ free(info->eeprom_map);
+ }
+ }
+ free(info->map);
+ free(info->port1_override);
+ free(info->port2_override);
+ free(info->ext_override);
+ free(info->mouse_mode);
+}
+
char *get_header_name(uint8_t *rom)
{
//TODO: Should probably prefer the title field that corresponds to the user's region preference
@@ -870,6 +886,7 @@ typedef struct {
uint8_t *rom;
uint8_t *lock_on;
tern_node *root;
+ tern_node *rom_db;
uint32_t rom_size;
uint32_t lock_on_size;
int index;
@@ -1051,58 +1068,64 @@ void map_iter_fun(char *key, tern_val val, uint8_t valtype, void *data)
map->flags = MMAP_READ;
map->mask = calc_mask(state->rom_size - offset, start, end);
} else if (!strcmp(dtype, "LOCK-ON")) {
- map->flags = MMAP_READ;
+ rom_info lock_info;
if (state->lock_on) {
- if (state->lock_on_size > offset) {
- map->mask = calc_mask(state->lock_on_size - offset, start, end);
- } else {
- map->mask = calc_mask(state->lock_on_size, start, end);
- }
- map->buffer = state->lock_on + (offset & (nearest_pow2(state->lock_on_size) - 1));
+ lock_info = configure_rom(state->rom_db, state->lock_on, state->lock_on_size, NULL, 0, NULL, 0);
} else if (state->rom_size > start) {
//This is a bit of a hack to deal with pre-combined S3&K/S2&K ROMs and S&K ROM hacks
- map->buffer = state->rom + start;
- map->mask = calc_mask(state->rom_size - start, start, end);
- if (has_ram_header(map->buffer, state->rom_size - start)) {
- uint32_t sram_start = read_ram_header(state->info, map->buffer);
-
- 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);
- if (sram_start >= state->rom_size) {
- map = state->info->map + ++state->index;
- map->start = sram_start;
- map->mask = state->info->save_mask;
- map->end = sram_start + state->info->save_mask + 1;
- map->flags = MMAP_READ | MMAP_WRITE;
- if (state->info->save_type == RAM_FLAG_ODD) {
- map->flags |= MMAP_ONLY_ODD;
- } else if (state->info->save_type == RAM_FLAG_EVEN) {
- map->flags |= MMAP_ONLY_EVEN;
- }
- map->buffer = state->info->save_buffer;
- } else {
- map = state->info->map + state->index++;
- map->flags |= MMAP_CODE | MMAP_PTR_IDX | MMAP_FUNC_NULL;
- state->info->mapper_start_index = state->ptr_index++;
- map->ptr_index = state->info->mapper_start_index;
- map->read_16 = (read_16_fun)read_sram_w;//these will only be called when mem_pointers[ptr_idx] == NULL
- map->read_8 = (read_8_fun)read_sram_b;
- map->write_16 = (write_16_fun)write_sram_area_w;//these will be called all writes to the area
- map->write_8 = (write_8_fun)write_sram_area_b;
-
- map = state->info->map + state->index;
- map->start = 0xA13000;
- map->end = 0xA13100;
- map->mask = 0xFF;
- map->write_16 = (write_16_fun)write_bank_reg_w;
- map->write_8 = (write_8_fun)write_bank_reg_b;
- }
- }
+ lock_info = configure_rom(state->rom_db, state->rom + start, state->rom_size - start, NULL, 0, NULL, 0);
} else {
//skip this entry if there is no lock on cartridge attached
return;
}
+ uint32_t matching_chunks = 0;
+ for (int i = 0; i < lock_info.map_chunks; i++)
+ {
+ if (lock_info.map[i].start < 0xC00000 && lock_info.map[i].end > 0x200000) {
+ matching_chunks++;
+ }
+ }
+ if (matching_chunks == 0) {
+ //Nothing mapped in the relevant range for the lock-on cart, ignore this mapping
+ return;
+ } else if (matching_chunks > 1) {
+ state->info->map_chunks += matching_chunks - 1;
+ state->info->map = realloc(state->info->map, sizeof(memmap_chunk) * state->info->map_chunks);
+ memset(state->info->map + state->info->map_chunks - (matching_chunks - 1), 0, sizeof(memmap_chunk) * (matching_chunks - 1));
+ map = state->info->map + state->index;
+ }
+ for (int i = 0; i < matching_chunks; i++)
+ {
+ if (lock_info.map[i].start >= 0xC00000 || lock_info.map[i].end <= 0x200000) {
+ continue;
+ }
+ *map = lock_info.map[i];
+ if (map->start < 0x200000) {
+ if (map->buffer) {
+ map->buffer += (0x200000 - map->start) & ((map->flags & MMAP_AUX_BUFF) ? map->aux_mask : map->mask);
+ }
+ map->start = 0x200000;
+ }
+ map++;
+ state->index++;
+ }
+ if (state->info->save_type == SAVE_NONE && lock_info.save_type != SAVE_NONE) {
+ //main cart has no save device, but lock-on cart does
+ if (state->lock_on) {
+ state->info->is_save_lock_on = 1;
+ }
+ state->info->save_buffer = lock_info.save_buffer;
+ state->info->save_size = lock_info.save_size;
+ state->info->save_mask = lock_info.save_mask;
+ state->info->save_page_size = lock_info.save_page_size;
+ state->info->save_product_id = lock_info.save_product_id;
+ state->info->save_type = lock_info.save_type;
+ state->info->save_bus = lock_info.save_bus;
+ lock_info.save_buffer = NULL;
+ lock_info.save_type = SAVE_NONE;
+ }
+ free_rom_info(&lock_info);
+ return;
} else if (!strcmp(dtype, "EEPROM")) {
process_eeprom_def(key, state);
add_eeprom_map(node, start, end, state);
@@ -1282,7 +1305,8 @@ rom_info configure_rom(tern_node *rom_db, void *vrom, uint32_t rom_size, void *l
.info = &info,
.rom = rom,
.lock_on = lock_on,
- .root = entry,
+ .root = entry,
+ .rom_db = rom_db,
.rom_size = rom_size,
.lock_on_size = lock_on_size,
.index = 0,
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-19 09:51:44 +0000