bool generic_slot_device::call_load()
{
if (m_cart)
{
if (!m_device_image_load.isnull())
return m_device_image_load(*this);
else
{
UINT32 len = common_get_size("rom");
rom_alloc(len, m_width, m_endianness);
common_load_rom(get_rom_base(), len, "rom");
return IMAGE_INIT_PASS;
}
}
return IMAGE_INIT_PASS;
}
image_init_result generic_slot_device::call_load()
{
if (m_cart)
{
if (!m_device_image_load.isnull())
return m_device_image_load(*this);
else
{
uint32_t len = common_get_size("rom");
rom_alloc(len, m_width, m_endianness);
common_load_rom(get_rom_base(), len, "rom");
return image_init_result::PASS;
}
}
return image_init_result::PASS;
}
int split_rom_load(struct emu *emu, const char *filename, struct rom **romptr)
{
struct archive *archive;
uint8_t *buffer;
size_t size;
struct rom_info *rom_info;
struct rom *rom;
int *chip_list;
int i;
if (!romptr)
return -1;
chip_list = NULL;
*romptr = NULL;
if (archive_open(&archive, filename))
return -1;
chip_list = malloc(archive->file_list->count * sizeof(*chip_list));
if (!chip_list)
return -1;
rom_info = NULL;
rom = NULL;
buffer = NULL;
do {
rom_info = db_lookup_split_rom(archive, chip_list, rom_info);
if (!rom_info)
break;
if (load_split_rom_parts(archive, chip_list, rom_info, &buffer,
&size)) {
break;
}
if (!buffer)
continue;
rom = rom_alloc(filename, buffer, size);
if (!rom)
break;
/* Store the filename of the first PRG chip as the empty string;
this allows patches to be included with split roms as well,
but they need to be located in the top-level directory of the
archive.
*/
rom->compressed_filename = strdup("");
buffer = NULL;
memcpy(&rom->info, rom_info, sizeof(*rom_info));
if (rom_info->name)
rom->info.name = strdup(rom_info->name);
else
rom->info.name = NULL;
rom->offset = INES_HEADER_SIZE;
rom_calculate_checksum(rom);
for (i = 0; i < archive->file_list->count; i++) {
char *basename;
if (!archive->file_list->entries[i].name)
continue;
basename = strrchr(archive->file_list->entries[i].name, '/');
if (!basename)
basename = archive->file_list->entries[i].name;
/* Hack for PlayChoice ROMs; most of these are the same as NES
carts, so check for a file called 'security.prm' to distinguish
them.
*/
if (!strcasecmp(basename, "security.prm")) {
if (rom->info.flags & ROM_FLAG_PLAYCHOICE)
rom->info.system_type = EMU_SYSTEM_TYPE_PLAYCHOICE;
}
}
/* Validate individual chip CRCs or SHA1s if present, then
the combined CRC and/or SHA1, if present.
*/
if (!validate_checksums(rom, rom_info))
goto invalid;
if ((rom->info.flags & ROM_FLAG_HAS_CRC) &&
(rom->info.combined_crc != rom_info->combined_crc)) {
goto invalid;
}
if ((rom->info.flags & ROM_FLAG_HAS_SHA1) &&
memcmp(rom->info.combined_sha1, rom_info->combined_sha1, 20)) {
goto invalid;
}
break;
invalid:
rom_free(rom);
rom = NULL;
} while (rom_info);
archive_close(&archive);
if (chip_list)
free(chip_list);
if (buffer)
free(buffer);
if (!rom)
return -1;
*romptr = rom;
return 0;
}
