trunk/src/mess/drivers/d6800.c
| r22698 | r22699 | |
|---|
| 106 | 106 | AM_RANGE(0x0100, 0x01ff) AM_RAM AM_SHARE("videoram") |
| 107 | 107 | AM_RANGE(0x0200, 0x0fff) AM_RAM |
| 108 | 108 | AM_RANGE(0x8010, 0x8013) AM_DEVREADWRITE("pia", pia6821_device, read, write) |
| 109 | | AM_RANGE(0xc000, 0xc3ff) AM_MIRROR(0x3c00) AM_ROM |
| 109 | AM_RANGE(0xc000, 0xc7ff) AM_MIRROR(0x3800) AM_ROM |
| 110 | 110 | ADDRESS_MAP_END |
| 111 | 111 | |
| 112 | 112 | /* Input Ports */ |
| r22698 | r22699 | |
|---|
| 260 | 260 | /* |
| 261 | 261 | A NE556 runs at either 1200 or 2400 Hz, depending on the state of bit 0. |
| 262 | 262 | This output drives the speaker and the output signal to the cassette player. |
| 263 | | Bit 6 enables the speaker. |
| 263 | Bit 6 enables the speaker. Also the speaker is silenced when cassette operations |
| 264 | are in progress (DMA/CB2 line low). |
| 264 | 265 | */ |
| 265 | 266 | |
| 266 | 267 | m_cass->output(BIT(data, 0) ? -1.0 : +1.0); |
| 267 | 268 | m_beeper->set_frequency(BIT(data, 0) ? 2400 : 1200); |
| 268 | | m_beeper->set_state(BIT(data, 6)); |
| 269 | m_beeper->set_state(BIT(data, 6) & m_screen_on); |
| 269 | 270 | |
| 270 | 271 | m_portb = data; |
| 271 | 272 | } |
| r22698 | r22699 | |
|---|
| 416 | 417 | MCFG_TIMER_DRIVER_ADD_PERIODIC("d6800_p", d6800_state, d6800_p, attotime::from_hz(40000)) |
| 417 | 418 | |
| 418 | 419 | /* quickload */ |
| 419 | | MCFG_QUICKLOAD_ADD("quickload", d6800_state, d6800, "c8", 1) |
| 420 | MCFG_QUICKLOAD_ADD("quickload", d6800_state, d6800, "c8,ch8", 1) |
| 420 | 421 | MACHINE_CONFIG_END |
| 421 | 422 | |
| 422 | 423 | /* ROMs */ |
| 423 | 424 | |
| 424 | 425 | ROM_START( d6800 ) |
| 425 | 426 | ROM_REGION( 0x10000, "maincpu", 0 ) |
| 426 | | ROM_LOAD( "d6800.bin", 0xc000, 0x0400, CRC(3f97ca2e) SHA1(60f26e57a058262b30befceceab4363a5d65d877) ) |
| 427 | ROM_SYSTEM_BIOS(0, "0", "Original") |
| 428 | ROMX_LOAD( "d6800.bin", 0xc000, 0x0400, CRC(3f97ca2e) SHA1(60f26e57a058262b30befceceab4363a5d65d877), ROM_BIOS(1) ) |
| 429 | ROMX_LOAD( "d6800.bin", 0xc400, 0x0400, CRC(3f97ca2e) SHA1(60f26e57a058262b30befceceab4363a5d65d877), ROM_BIOS(1) ) |
| 430 | ROM_SYSTEM_BIOS(1, "1", "Dreamsoft") |
| 431 | ROMX_LOAD( "d6800.bin", 0xc000, 0x0800, CRC(ded5712f) SHA1(f594f313a74d7135c9fdd0bcb0093fc5771a9b7d), ROM_BIOS(2) ) |
| 427 | 432 | ROM_END |
| 428 | 433 | |
| 429 | | /* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ |
| 430 | | COMP( 1979, d6800, 0, 0, d6800, d6800, driver_device, 0, "Electronics Australia", "Dream 6800", GAME_NOT_WORKING ) |
| 434 | /* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS, INIT COMPANY FULLNAME FLAGS */ |
| 435 | COMP( 1979, d6800, 0, 0, d6800, d6800, driver_device, 0, "Michael Bauer", "Dream 6800", GAME_NOT_WORKING ) |