diff options
Diffstat (limited to 'src/mame/drivers/b2m.c')
-rw-r--r-- | src/mame/drivers/b2m.c | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/src/mame/drivers/b2m.c b/src/mame/drivers/b2m.c new file mode 100644 index 00000000000..99a3b03ccd6 --- /dev/null +++ b/src/mame/drivers/b2m.c @@ -0,0 +1,273 @@ +// 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" + +/* Address maps */ +static ADDRESS_MAP_START(b2m_mem, AS_PROGRAM, 8, b2m_state ) + AM_RANGE (0x0000, 0x27ff) AM_RAMBANK("bank1") + AM_RANGE (0x2800, 0x2fff) AM_RAMBANK("bank2") + AM_RANGE (0x3000, 0x6fff) AM_RAMBANK("bank3") + AM_RANGE (0x7000, 0xdfff) AM_RAMBANK("bank4") + AM_RANGE (0xe000, 0xffff) AM_RAMBANK("bank5") +ADDRESS_MAP_END + +static ADDRESS_MAP_START( b2m_io, AS_IO, 8, b2m_state ) + ADDRESS_MAP_GLOBAL_MASK(0x1f) + AM_RANGE(0x00, 0x03) AM_DEVREADWRITE("pit8253", pit8253_device, read, write) + AM_RANGE(0x04, 0x07) AM_DEVREADWRITE("ppi8255_2", i8255_device, read, write) + AM_RANGE(0x08, 0x0b) AM_DEVREADWRITE("ppi8255_1", i8255_device, read, write) + AM_RANGE(0x0c, 0x0c) AM_READWRITE(b2m_localmachine_r,b2m_localmachine_w) + AM_RANGE(0x10, 0x13) AM_READWRITE(b2m_palette_r,b2m_palette_w) + AM_RANGE(0x14, 0x15) AM_DEVREADWRITE("pic8259", pic8259_device, read, write ) + AM_RANGE(0x18, 0x18) AM_DEVREADWRITE("uart", i8251_device, data_r, data_w) + AM_RANGE(0x19, 0x19) AM_DEVREADWRITE("uart", i8251_device, status_r, control_w) + AM_RANGE(0x1c, 0x1f) AM_DEVREADWRITE("fd1793", fd1793_t, read, write) +ADDRESS_MAP_END + +static ADDRESS_MAP_START( b2m_rom_io, AS_IO, 8, b2m_state ) + ADDRESS_MAP_GLOBAL_MASK(0x1f) + AM_RANGE(0x00, 0x03) AM_DEVREADWRITE("pit8253", pit8253_device, read, write) + AM_RANGE(0x04, 0x07) AM_DEVREADWRITE("ppi8255_3", i8255_device, read, write) + AM_RANGE(0x08, 0x0b) AM_DEVREADWRITE("ppi8255_1", i8255_device, read, write) + AM_RANGE(0x0c, 0x0c) AM_READWRITE(b2m_localmachine_r,b2m_localmachine_w) + AM_RANGE(0x10, 0x13) AM_READWRITE(b2m_palette_r,b2m_palette_w) + AM_RANGE(0x14, 0x15) AM_DEVREADWRITE("pic8259", pic8259_device, read, write ) + AM_RANGE(0x18, 0x18) AM_DEVREADWRITE("uart", i8251_device, data_r, data_w) + AM_RANGE(0x19, 0x19) AM_DEVREADWRITE("uart", i8251_device, status_r, control_w) +ADDRESS_MAP_END + + +/* 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 SLOT_INTERFACE_START( b2m_floppies ) + SLOT_INTERFACE( "525qd", FLOPPY_525_QD ) +SLOT_INTERFACE_END + + +/* Machine driver */ +static MACHINE_CONFIG_START( b2m, b2m_state ) + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu", I8080, 2000000) + MCFG_CPU_PROGRAM_MAP(b2m_mem) + MCFG_CPU_IO_MAP(b2m_io) + MCFG_CPU_VBLANK_INT_DRIVER("screen", b2m_state, b2m_vblank_interrupt) + MCFG_CPU_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(DEVWRITELINE("pic8259", pic8259_device, ir1_w)) + MCFG_PIT8253_CLK1(2000000) + MCFG_PIT8253_OUT1_HANDLER(WRITELINE(b2m_state,bm2_pit_out1)) + MCFG_PIT8253_CLK2(2000000) + MCFG_PIT8253_OUT2_HANDLER(DEVWRITELINE("pit8253", pit8253_device, write_clk0)) + + MCFG_DEVICE_ADD("ppi8255_1", I8255, 0) + MCFG_I8255_OUT_PORTA_CB(WRITE8(b2m_state, b2m_8255_porta_w)) + MCFG_I8255_IN_PORTB_CB(READ8(b2m_state, b2m_8255_portb_r)) + MCFG_I8255_OUT_PORTB_CB(WRITE8(b2m_state, b2m_8255_portb_w)) + MCFG_I8255_OUT_PORTC_CB(WRITE8(b2m_state, b2m_8255_portc_w)) + + MCFG_DEVICE_ADD("ppi8255_2", I8255, 0) + MCFG_I8255_OUT_PORTC_CB(WRITE8(b2m_state, b2m_ext_8255_portc_w)) + + MCFG_DEVICE_ADD("ppi8255_3", I8255, 0) + MCFG_I8255_IN_PORTA_CB(READ8(b2m_state, b2m_romdisk_porta_r)) + MCFG_I8255_OUT_PORTB_CB(WRITE8(b2m_state, b2m_romdisk_portb_w)) + MCFG_I8255_OUT_PORTC_CB(WRITE8(b2m_state, b2m_romdisk_portc_w)) + + MCFG_PIC8259_ADD( "pic8259", INPUTLINE("maincpu", 0), VCC, NULL ) + + /* sound */ + MCFG_SPEAKER_STANDARD_MONO("mono") + MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0) + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25) + + /* uart */ + MCFG_DEVICE_ADD("uart", I8251, 0) + + MCFG_FD1793_ADD("fd1793", XTAL_8MHz / 8) + MCFG_WD_FDC_DRQ_CALLBACK(WRITELINE(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 + +static MACHINE_CONFIG_DERIVED( b2mrom, b2m ) + MCFG_CPU_MODIFY("maincpu") + MCFG_CPU_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 INIT COMPANY FULLNAME FLAGS */ +COMP( 1989, b2m, 0, 0, b2m, b2m, b2m_state, b2m, "BNPO", "Bashkiria-2M", MACHINE_SUPPORTS_SAVE) +COMP( 1989, b2mrom, b2m, 0, b2mrom, b2m, b2m_state, b2m, "BNPO", "Bashkiria-2M ROM-disk", MACHINE_SUPPORTS_SAVE) |