// license:BSD-3-Clause // copyright-holders:Miodrag Milanovic /*************************************************************************** Bashkiria-2M driver by Miodrag Milanovic 28/03/2008 Preliminary driver. ****************************************************************************/ #include "emu.h" #include "cpu/i8085/i8085.h" #include "imagedev/cassette.h" #include "machine/i8255.h" #include "machine/pic8259.h" #include "machine/i8251.h" #include "machine/wd_fdc.h" #include "machine/ram.h" #include "includes/b2m.h" #include "formats/smx_dsk.h" #include "screen.h" #include "softlist.h" #include "speaker.h" /* Address maps */ void b2m_state::b2m_mem(address_map &map) { map(0x0000, 0x27ff).bankrw("bank1"); map(0x2800, 0x2fff).bankrw("bank2"); map(0x3000, 0x6fff).bankrw("bank3"); map(0x7000, 0xdfff).bankrw("bank4"); map(0xe000, 0xffff).bankrw("bank5"); } void b2m_state::b2m_io(address_map &map) { map.global_mask(0x1f); map(0x00, 0x03).rw(m_pit, FUNC(pit8253_device::read), FUNC(pit8253_device::write)); map(0x04, 0x07).rw("ppi8255_2", FUNC(i8255_device::read), FUNC(i8255_device::write)); map(0x08, 0x0b).rw("ppi8255_1", FUNC(i8255_device::read), FUNC(i8255_device::write)); map(0x0c, 0x0c).rw(this, FUNC(b2m_state::b2m_localmachine_r), FUNC(b2m_state::b2m_localmachine_w)); map(0x10, 0x13).rw(this, FUNC(b2m_state::b2m_palette_r), FUNC(b2m_state::b2m_palette_w)); map(0x14, 0x15).rw(m_pic, FUNC(pic8259_device::read), FUNC(pic8259_device::write)); map(0x18, 0x18).rw("uart", FUNC(i8251_device::data_r), FUNC(i8251_device::data_w)); map(0x19, 0x19).rw("uart", FUNC(i8251_device::status_r), FUNC(i8251_device::control_w)); map(0x1c, 0x1f).rw(m_fdc, FUNC(fd1793_device::read), FUNC(fd1793_device::write)); } void b2m_state::b2m_rom_io(address_map &map) { map.global_mask(0x1f); map(0x00, 0x03).rw(m_pit, FUNC(pit8253_device::read), FUNC(pit8253_device::write)); map(0x04, 0x07).rw("ppi8255_3", FUNC(i8255_device::read), FUNC(i8255_device::write)); map(0x08, 0x0b).rw("ppi8255_1", FUNC(i8255_device::read), FUNC(i8255_device::write)); map(0x0c, 0x0c).rw(this, FUNC(b2m_state::b2m_localmachine_r), FUNC(b2m_state::b2m_localmachine_w)); map(0x10, 0x13).rw(this, FUNC(b2m_state::b2m_palette_r), FUNC(b2m_state::b2m_palette_w)); map(0x14, 0x15).rw(m_pic, FUNC(pic8259_device::read), FUNC(pic8259_device::write)); map(0x18, 0x18).rw("uart", FUNC(i8251_device::data_r), FUNC(i8251_device::data_w)); map(0x19, 0x19).rw("uart", FUNC(i8251_device::status_r), FUNC(i8251_device::control_w)); } /* Input ports */ static INPUT_PORTS_START( b2m ) PORT_START("LINE0") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('U') PORT_CHAR('u') PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('A') PORT_CHAR('a') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('T') PORT_CHAR('t') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('L') PORT_CHAR('l') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('W') PORT_CHAR('w') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F6) PORT_CHAR(UCHAR_MAMEKEY(F6)) PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('F') PORT_CHAR('f') PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F7) PORT_CHAR(UCHAR_MAMEKEY(F7)) PORT_START("LINE1") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('J') PORT_CHAR('j') PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('Y') PORT_CHAR('y') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('V') PORT_CHAR('v') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('K') PORT_CHAR('k') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('R') PORT_CHAR('r') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('Q') PORT_CHAR('q') PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_CHAR('b') PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('{') PORT_START("LINE2") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('D') PORT_CHAR('d') PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F8) PORT_CHAR(UCHAR_MAMEKEY(F8)) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('E') PORT_CHAR('e') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('N') PORT_CHAR('n') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('C') PORT_CHAR('c') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('H') PORT_CHAR('h') PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('Z') PORT_CHAR('z') PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('G') PORT_CHAR('g') PORT_START("LINE3") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('}') PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('X') PORT_CHAR('x') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('O') PORT_CHAR('o') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F9) PORT_CHAR(UCHAR_MAMEKEY(F9)) PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('I') PORT_CHAR('i') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('P') PORT_CHAR('p') PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('S') PORT_CHAR('s') PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('M') PORT_CHAR('m') PORT_START("LINE4") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('*') PORT_CHAR('8') PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('&') PORT_CHAR('7') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('^') PORT_CHAR('6') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('%') PORT_CHAR('5') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('$') PORT_CHAR('4') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('#') PORT_CHAR('3') PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('@') PORT_CHAR('2') PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('_') PORT_CHAR('-') PORT_START("LINE5") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR('<') PORT_CHAR(',') PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR('\'') PORT_CHAR(';') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('+') PORT_CHAR('=') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("`") PORT_CODE(KEYCODE_TILDE) PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('!') PORT_CHAR('1') PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('|') PORT_CHAR('\\') PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR(')') PORT_CHAR('0') PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('(') PORT_CHAR('9') PORT_START("LINE6") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Space") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t') PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Backspace") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("/") PORT_CODE(KEYCODE_TILDE) PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("*") PORT_CODE(KEYCODE_TILDE) PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F12) PORT_CHAR(UCHAR_MAMEKEY(F12)) PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("-") PORT_CODE(KEYCODE_TILDE) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) PORT_START("LINE7") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Rshift") PORT_CODE(KEYCODE_RSHIFT) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("LAlt") PORT_CODE(KEYCODE_LALT) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("LCtrl") PORT_CODE(KEYCODE_LCONTROL) PORT_CODE(KEYCODE_RCONTROL) PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC)) PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("???") PORT_CODE(KEYCODE_TILDE) PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F11) PORT_CHAR(UCHAR_MAMEKEY(F11)) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("LShift") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) PORT_START("LINE8") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_HOME) PORT_CHAR(UCHAR_MAMEKEY(HOME)) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("??") PORT_CODE(KEYCODE_TILDE) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT)) PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("PgdN") PORT_CODE(KEYCODE_PGDN) PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(DOWN)) PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("end") PORT_CODE(KEYCODE_END) PORT_CHAR(UCHAR_MAMEKEY(END)) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("ins") PORT_CODE(KEYCODE_INSERT) PORT_CHAR(UCHAR_MAMEKEY(INSERT)) PORT_START("LINE9") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('?') PORT_CHAR('/') PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Del") PORT_CODE(KEYCODE_DEL) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\"') PORT_CHAR(':') PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('>') PORT_CHAR('.') PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("PgUp") PORT_CODE(KEYCODE_PGUP) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP)) PORT_START("LINE10") PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_BIT(0x02, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_BIT(0x04, IP_ACTIVE_HIGH, IPT_UNUSED) PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F5)) PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F4)) PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3)) PORT_BIT(0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F2)) PORT_BIT(0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1)) PORT_START("MONITOR") PORT_CONFNAME(0x01, 0x01, "Monitor") PORT_CONFSETTING( 0x01, "Color") PORT_CONFSETTING( 0x00, "B/W") INPUT_PORTS_END FLOPPY_FORMATS_MEMBER( b2m_state::b2m_floppy_formats ) FLOPPY_SMX_FORMAT FLOPPY_FORMATS_END static void b2m_floppies(device_slot_interface &device) { device.option_add("525qd", FLOPPY_525_QD); } /* Machine driver */ MACHINE_CONFIG_START(b2m_state::b2m) /* basic machine hardware */ MCFG_DEVICE_ADD("maincpu", I8080, 2000000) MCFG_DEVICE_PROGRAM_MAP(b2m_mem) MCFG_DEVICE_IO_MAP(b2m_io) MCFG_DEVICE_VBLANK_INT_DRIVER("screen", b2m_state, b2m_vblank_interrupt) MCFG_DEVICE_IRQ_ACKNOWLEDGE_DEVICE("pic8259", pic8259_device, inta_cb) /* video hardware */ MCFG_SCREEN_ADD("screen", RASTER) MCFG_SCREEN_REFRESH_RATE(50) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ MCFG_SCREEN_SIZE(384, 256) MCFG_SCREEN_VISIBLE_AREA(0, 384-1, 0, 256-1) MCFG_SCREEN_UPDATE_DRIVER(b2m_state, screen_update_b2m) MCFG_SCREEN_PALETTE("palette") MCFG_PALETTE_ADD("palette", 4) MCFG_PALETTE_INIT_OWNER(b2m_state, b2m) MCFG_DEVICE_ADD("pit8253", PIT8253, 0) MCFG_PIT8253_CLK0(0) MCFG_PIT8253_OUT0_HANDLER(WRITELINE("pic8259", pic8259_device, ir1_w)) MCFG_PIT8253_CLK1(2000000) MCFG_PIT8253_OUT1_HANDLER(WRITELINE(*this, b2m_state,bm2_pit_out1)) MCFG_PIT8253_CLK2(2000000) MCFG_PIT8253_OUT2_HANDLER(WRITELINE("pit8253", pit8253_device, write_clk0)) MCFG_DEVICE_ADD("ppi8255_1", I8255, 0) MCFG_I8255_OUT_PORTA_CB(WRITE8(*this, b2m_state, b2m_8255_porta_w)) MCFG_I8255_IN_PORTB_CB(READ8(*this, b2m_state, b2m_8255_portb_r)) MCFG_I8255_OUT_PORTB_CB(WRITE8(*this, b2m_state, b2m_8255_portb_w)) MCFG_I8255_OUT_PORTC_CB(WRITE8(*this, b2m_state, b2m_8255_portc_w)) MCFG_DEVICE_ADD("ppi8255_2", I8255, 0) MCFG_I8255_OUT_PORTC_CB(WRITE8(*this, b2m_state, b2m_ext_8255_portc_w)) MCFG_DEVICE_ADD("ppi8255_3", I8255, 0) MCFG_I8255_IN_PORTA_CB(READ8(*this, b2m_state, b2m_romdisk_porta_r)) MCFG_I8255_OUT_PORTB_CB(WRITE8(*this, b2m_state, b2m_romdisk_portb_w)) MCFG_I8255_OUT_PORTC_CB(WRITE8(*this, b2m_state, b2m_romdisk_portc_w)) MCFG_DEVICE_ADD("pic8259", PIC8259, 0) MCFG_PIC8259_OUT_INT_CB(INPUTLINE("maincpu", 0)) /* sound */ SPEAKER(config, "mono").front_center(); MCFG_DEVICE_ADD("speaker", SPEAKER_SOUND) MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25) /* uart */ MCFG_DEVICE_ADD("uart", I8251, 0) MCFG_FD1793_ADD("fd1793", XTAL(8'000'000) / 8) MCFG_WD_FDC_DRQ_CALLBACK(WRITELINE(*this, b2m_state, b2m_fdc_drq)) MCFG_FLOPPY_DRIVE_ADD("fd0", b2m_floppies, "525qd", b2m_state::b2m_floppy_formats) MCFG_FLOPPY_DRIVE_ADD("fd1", b2m_floppies, "525qd", b2m_state::b2m_floppy_formats) MCFG_SOFTWARE_LIST_ADD("flop_list","b2m") /* internal ram */ MCFG_RAM_ADD(RAM_TAG) MCFG_RAM_DEFAULT_SIZE("128K") MCFG_RAM_DEFAULT_VALUE(0x00) MACHINE_CONFIG_END MACHINE_CONFIG_START(b2m_state::b2mrom) b2m(config); MCFG_DEVICE_MODIFY("maincpu") MCFG_DEVICE_IO_MAP(b2m_rom_io) MACHINE_CONFIG_END /* ROM definition */ ROM_START( b2m ) ROM_REGION( 0x12000, "maincpu", ROMREGION_ERASEFF ) ROM_LOAD( "b2m.rom", 0x10000, 0x2000, CRC(3f3214d6) SHA1(dd93e7fbabf14d1aed6777fe1ccfe0a3ca8fcaf2) ) ROM_END ROM_START( b2mrom ) ROM_REGION( 0x22000, "maincpu", ROMREGION_ERASEFF ) ROM_LOAD( "bios2.rom", 0x10000, 0x2000, CRC(c22a98b7) SHA1(7de91e653bf4b191ded62cf21532578268e4a2c1) ) ROM_LOAD( "ramdos.sys", 0x12000, 0x60c0, CRC(91ed6df0) SHA1(4fd040f2647a6b7930c330c75560a035027d0606) ) ROM_END /* Driver */ /* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ COMP( 1989, b2m, 0, 0, b2m, b2m, b2m_state, empty_init, "BNPO", "Bashkiria-2M", MACHINE_SUPPORTS_SAVE) COMP( 1989, b2mrom, b2m, 0, b2mrom, b2m, b2m_state, empty_init, "BNPO", "Bashkiria-2M ROM-disk", MACHINE_SUPPORTS_SAVE)