/* Omnibyte MSBC-1 PCB Layout ---------- REV B |-----------------------------------------------------------| | CN1 CN2 CN3 CN4 SW1 CN5 | | | | 3.6864MHz 3.6864MHz ROM1 | | ROM0 | | SIO SIO SW3 SW2 | | PIT | | 12.5MHz 41256 41256 41256 | | 41256 41256 41256 | | 8MHz CPU 41245 41256 | | | | 8419 | | SW4 | |-|-------------CN6----------------|----|-------CN7-------|-| |--------------------------------| |-----------------| Notes: Relevant IC's shown. CPU - Motorola MC68000R12 SIO - Mostek MK68564N-5A Serial Input/Output PIT - Motorola MC68230L10 Parallel Interface/Timer 8419 - National Semiconductor DP8419N DRAM Controller 41256 - Fujitsu MB81256-12 256Kx1 RAM ROM0 - AMD AM27128ADC 16Kx8 ROM "47-2818-36G1" ROM1 - AMD AM27128ADC 16Kx8 ROM "47-2818-36G2" SW1 - push button SW2 - rotary hex DIP SW3 - rotary hex DIP SW4 - DIP8 CN1 - CN2 - CN3 - CN4 - CN5 - CN6 - CN7 - */ #include "emu.h" #include "cpu/m68000/m68000.h" #include "machine/terminal.h" #include "includes/msbc1.h" #define TERMINAL_TAG "terminal" static ADDRESS_MAP_START( msbc1_mem, AS_PROGRAM, 16, msbc1_state ) ADDRESS_MAP_UNMAP_HIGH AM_RANGE(0x000000, 0x03ffff) AM_RAM AM_RANGE(0xf80000, 0xf87fff) AM_ROM AM_REGION(MC68000R12_TAG, 0) ADDRESS_MAP_END /* Input ports */ static INPUT_PORTS_START( msbc1 ) INPUT_PORTS_END void msbc1_state::machine_reset() { void *ram = m_maincpu->space(AS_PROGRAM).get_write_ptr(0); UINT8 *rom = memregion(MC68000R12_TAG)->base(); memcpy(ram, rom, 8); m_maincpu->reset(); } static MACHINE_CONFIG_START( msbc1, msbc1_state ) /* basic machine hardware */ MCFG_CPU_ADD(MC68000R12_TAG, M68000, XTAL_12_5MHz) MCFG_CPU_PROGRAM_MAP(msbc1_mem) // devices MCFG_DEVICE_ADD(TERMINAL_TAG, GENERIC_TERMINAL, 0) MACHINE_CONFIG_END /* ROM definition */ ROM_START( msbc1 ) ROM_REGION16_BE( 0x8000, MC68000R12_TAG, 0 ) ROM_LOAD16_BYTE( "47-2818-36g1.u18", 0x0000, 0x4000, CRC(14f25d47) SHA1(964bc49c1dd9e9680c0d3d89ff3794c5044bea62) ) ROM_LOAD16_BYTE( "47-2818-36g2.u19", 0x0001, 0x4000, CRC(4814b9e1) SHA1(d96cf75084c6588cb33513830c6beeeffc2de853) ) ROM_REGION( 0x100, "plds", 0 ) ROM_LOAD( "p21.1.u22", 0x000, 0x100, NO_DUMP ) ROM_LOAD( "p22.0.u37", 0x000, 0x100, NO_DUMP ) ROM_LOAD( "p23.0.u38", 0x000, 0x100, NO_DUMP ) ROM_LOAD( "p24.0.u43", 0x000, 0x100, NO_DUMP ) ROM_LOAD( "p25.0.u44", 0x000, 0x100, NO_DUMP ) ROM_LOAD( "p26.0.u45", 0x000, 0x100, NO_DUMP ) ROM_LOAD( "p27.0.u46", 0x000, 0x100, NO_DUMP ) ROM_LOAD( "p28.1.u49", 0x000, 0x100, NO_DUMP ) ROM_LOAD( "p29.0.u58", 0x000, 0x100, NO_DUMP ) ROM_LOAD( "p30.0.u60", 0x000, 0x100, NO_DUMP ) ROM_LOAD( "p31.0.u61", 0x000, 0x100, NO_DUMP ) ROM_LOAD( "p32.0.u76", 0x000, 0x100, NO_DUMP ) ROM_END /* Driver */ /* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ COMP( 1985, msbc1, 0, 0, msbc1, msbc1, driver_device, 0, "Omnibyte", "MSBC-1", GAME_NOT_WORKING | GAME_NO_SOUND)