src/mess/drivers/pce220.c
| r0 | r6403 | |
|---|
| 1 | /*************************************************************************** |
| 2 | |
| 3 | Sharp PC-E220 |
| 4 | |
| 5 | 16/11/2009 Skeleton driver. |
| 6 | |
| 7 | ****************************************************************************/ |
| 8 | |
| 9 | #include "driver.h" |
| 10 | #include "cpu/z80/z80.h" |
| 11 | #include "devices/messram.h" |
| 12 | |
| 13 | static WRITE8_HANDLER( rom_bank_w) |
| 14 | { |
| 15 | UINT8 bank2 = data & 0x07; // bits 0,1,2 |
| 16 | UINT8 bank1 = data & 0x70; // bits 4,5,6 |
| 17 | |
| 18 | memory_set_bankptr(space->machine, 3, memory_region(space->machine, "user1") + 0x4000 * bank1); |
| 19 | memory_set_bankptr(space->machine, 4, memory_region(space->machine, "user1") + 0x4000 * bank2); |
| 20 | } |
| 21 | |
| 22 | static WRITE8_HANDLER( ram_bank_w) |
| 23 | { |
| 24 | const address_space *space_prg = cputag_get_address_space(space->machine, "maincpu", ADDRESS_SPACE_PROGRAM); |
| 25 | UINT8 bank = BIT(data,2); |
| 26 | memory_install_write8_handler(space_prg, 0x0000, 0x3fff, 0, 0, SMH_BANK(1)); |
| 27 | |
| 28 | memory_set_bankptr(space->machine, 1, messram_get_ptr(devtag_get_device(space->machine, "messram"))+0x0000+bank*0x8000); |
| 29 | memory_set_bankptr(space->machine, 2, messram_get_ptr(devtag_get_device(space->machine, "messram"))+0x4000+bank*0x8000); |
| 30 | } |
| 31 | |
| 32 | static ADDRESS_MAP_START(pce220_mem, ADDRESS_SPACE_PROGRAM, 8) |
| 33 | AM_RANGE(0x0000, 0x3fff) AM_RAMBANK(1) |
| 34 | AM_RANGE(0x4000, 0x7fff) AM_RAMBANK(2) |
| 35 | AM_RANGE(0x8000, 0xbfff) AM_ROMBANK(3) |
| 36 | AM_RANGE(0xc000, 0xffff) AM_ROMBANK(4) |
| 37 | ADDRESS_MAP_END |
| 38 | |
| 39 | static ADDRESS_MAP_START( pce220_io , ADDRESS_SPACE_IO, 8) |
| 40 | ADDRESS_MAP_UNMAP_HIGH |
| 41 | ADDRESS_MAP_GLOBAL_MASK(0xff) |
| 42 | AM_RANGE(0x19, 0x19) AM_WRITE(rom_bank_w) |
| 43 | AM_RANGE(0x1b, 0x1b) AM_WRITE(ram_bank_w) |
| 44 | ADDRESS_MAP_END |
| 45 | |
| 46 | /* Input ports */ |
| 47 | INPUT_PORTS_START( pce220 ) |
| 48 | INPUT_PORTS_END |
| 49 | |
| 50 | |
| 51 | static MACHINE_RESET(pce220) |
| 52 | { |
| 53 | const address_space *space = cputag_get_address_space(machine, "maincpu", ADDRESS_SPACE_PROGRAM); |
| 54 | memory_install_write8_handler(space, 0x0000, 0x3fff, 0, 0, SMH_UNMAP); |
| 55 | memory_set_bankptr(machine, 1, memory_region(machine, "user1") + 0x0000); |
| 56 | } |
| 57 | |
| 58 | static VIDEO_START( pce220 ) |
| 59 | { |
| 60 | } |
| 61 | |
| 62 | static VIDEO_UPDATE( pce220 ) |
| 63 | { |
| 64 | return 0; |
| 65 | } |
| 66 | |
| 67 | static MACHINE_DRIVER_START( pce220 ) |
| 68 | /* basic machine hardware */ |
| 69 | MDRV_CPU_ADD("maincpu",Z80, 3072000 ) // CMOS-SC7852 |
| 70 | MDRV_CPU_PROGRAM_MAP(pce220_mem) |
| 71 | MDRV_CPU_IO_MAP(pce220_io) |
| 72 | |
| 73 | MDRV_MACHINE_RESET(pce220) |
| 74 | |
| 75 | /* video hardware */ |
| 76 | // 4 lines x 24 characters, resp. 144 x 32 pixel |
| 77 | MDRV_SCREEN_ADD("screen", RASTER) |
| 78 | MDRV_SCREEN_REFRESH_RATE(50) |
| 79 | MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ |
| 80 | MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) |
| 81 | MDRV_SCREEN_SIZE(144, 32) |
| 82 | MDRV_SCREEN_VISIBLE_AREA(0, 144-1, 0, 32-1) |
| 83 | MDRV_PALETTE_LENGTH(2) |
| 84 | MDRV_PALETTE_INIT(black_and_white) |
| 85 | |
| 86 | MDRV_VIDEO_START(pce220) |
| 87 | MDRV_VIDEO_UPDATE(pce220) |
| 88 | |
| 89 | /* internal ram */ |
| 90 | MDRV_RAM_ADD("messram") |
| 91 | MDRV_RAM_DEFAULT_SIZE("64K") // 32K internal + 32K external card |
| 92 | MACHINE_DRIVER_END |
| 93 | |
| 94 | /* ROM definition */ |
| 95 | ROM_START( pce220 ) |
| 96 | ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) |
| 97 | ROM_REGION( 0x20000, "user1", ROMREGION_ERASEFF ) |
| 98 | ROM_SYSTEM_BIOS( 0, "v1", "v 0.1") |
| 99 | ROM_SYSTEM_BIOS( 1, "v2", "v 0.2") |
| 100 | ROM_LOAD( "bank0.bin", 0x0000, 0x4000, CRC(1fa94d11) SHA1(24c54347dbb1423388360a359aa09db47d2057b7)) |
| 101 | ROM_LOAD( "bank1.bin", 0x4000, 0x4000, CRC(0f9864b0) SHA1(6b7301c96f1a865e1931d82872a1ed5d1f80644e)) |
| 102 | ROM_LOAD( "bank2.bin", 0x8000, 0x4000, CRC(1625e958) SHA1(090440600d461aa7efe4adbf6e975aa802aabeec)) |
| 103 | ROM_LOAD( "bank3.bin", 0xc000, 0x4000, CRC(ed9a57f8) SHA1(58087dc64103786a40325c0a1e04bd88bfd6da57)) |
| 104 | ROM_LOAD( "bank4.bin", 0x10000, 0x4000, CRC(e37665ae) SHA1(85f5c84f69f79e7ac83b30397b2a1d9629f9eafa)) |
| 105 | ROMX_LOAD( "bank5.bin", 0x14000, 0x4000, CRC(6b116e7a) SHA1(b29f5a070e846541bddc88b5ee9862cc36b88eee),ROM_BIOS(2)) |
| 106 | ROMX_LOAD( "bank5_0.1.bin", 0x14000, 0x4000, CRC(13c26eb4) SHA1(b9cd0efd6b195653b9610e20ad8aab541824a689),ROM_BIOS(1)) |
| 107 | ROMX_LOAD( "bank6.bin", 0x18000, 0x4000, CRC(4fbfbd18) SHA1(e5aab1df172dcb94aa90e7d898eacfc61157ff15),ROM_BIOS(2)) |
| 108 | ROMX_LOAD( "bank6_0.1.bin", 0x18000, 0x4000, CRC(e2cda7a6) SHA1(01b1796d9485fde6994cb5afbe97514b54cfbb3a),ROM_BIOS(1)) |
| 109 | ROMX_LOAD( "bank7.bin", 0x1c000, 0x4000, CRC(5e98b5b6) SHA1(f22d74d6a24f5929efaf2983caabd33859232a94),ROM_BIOS(2)) |
| 110 | ROMX_LOAD( "bank7_0.1.bin", 0x1c000, 0x4000, CRC(d8e821b2) SHA1(18245a75529d2f496cdbdc28cdf40def157b20c0),ROM_BIOS(1)) |
| 111 | ROM_END |
| 112 | |
| 113 | /* Driver */ |
| 114 | |
| 115 | /* YEAR NAME PARENT COMPAT MACHINE INPUT INIT CONFIG COMPANY FULLNAME FLAGS */ |
| 116 | COMP( 1991, pce220, 0, 0, pce220, pce220, 0, 0, "Sharp", "PC-E220", GAME_NOT_WORKING) |
| 117 | |