src/mess/drivers/rx78.c
| r8631 | r8632 | |
|---|
| 333 | 333 | { |
| 334 | 334 | } |
| 335 | 335 | |
| 336 | static DEVICE_IMAGE_LOAD( rx78_cart ) |
| 337 | { |
| 338 | UINT8 *cart = memory_region(image.device().machine, "cart_img"); |
| 339 | UINT32 size; |
| 340 | |
| 341 | if (image.software_entry() == NULL) |
| 342 | size = image.length(); |
| 343 | else |
| 344 | size = image.get_software_region_length("rom"); |
| 345 | |
| 346 | if (size != 0x2000 && size != 0x4000) |
| 347 | { |
| 348 | image.seterror(IMAGE_ERROR_UNSPECIFIED, "Unsupported cartridge size"); |
| 349 | return IMAGE_INIT_FAIL; |
| 350 | } |
| 351 | |
| 352 | if (image.software_entry() == NULL) |
| 353 | { |
| 354 | if (image.fread( cart, size) != size) |
| 355 | { |
| 356 | image.seterror(IMAGE_ERROR_UNSPECIFIED, "Unable to fully read from file"); |
| 357 | return IMAGE_INIT_FAIL; |
| 358 | } |
| 359 | } |
| 360 | else |
| 361 | memcpy(cart, image.get_software_region("rom"), size); |
| 362 | |
| 363 | return IMAGE_INIT_PASS; |
| 364 | } |
| 365 | |
| 336 | 366 | /* F4 Character Displayer */ |
| 337 | 367 | static const gfx_layout rx78_charlayout = |
| 338 | 368 | { |
| r8631 | r8632 | |
|---|
| 376 | 406 | MDRV_CARTSLOT_ADD("cart") |
| 377 | 407 | MDRV_CARTSLOT_EXTENSION_LIST("rom") |
| 378 | 408 | MDRV_CARTSLOT_NOT_MANDATORY |
| 379 | | |
| 409 | MDRV_CARTSLOT_LOAD(rx78_cart) |
| 410 | MDRV_CARTSLOT_INTERFACE("rx78_cart") |
| 411 | |
| 380 | 412 | MDRV_RAM_ADD("messram") |
| 381 | 413 | MDRV_RAM_DEFAULT_SIZE("32k") |
| 382 | 414 | MDRV_RAM_EXTRA_OPTIONS("16k") |
| r8631 | r8632 | |
|---|
| 385 | 417 | |
| 386 | 418 | MDRV_SOUND_ADD("sn1", SN76489A, XTAL_28_63636MHz/8) // unknown divider |
| 387 | 419 | MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50) |
| 420 | |
| 421 | /* Software lists */ |
| 422 | MDRV_SOFTWARE_LIST_ADD("cart_list","rx78") |
| 388 | 423 | MACHINE_DRIVER_END |
| 389 | 424 | |
| 390 | 425 | /* ROM definition */ |