diff options
Diffstat (limited to 'src/mess/drivers/xerox820.c')
-rw-r--r-- | src/mess/drivers/xerox820.c | 833 |
1 files changed, 0 insertions, 833 deletions
diff --git a/src/mess/drivers/xerox820.c b/src/mess/drivers/xerox820.c deleted file mode 100644 index bd7756004d3..00000000000 --- a/src/mess/drivers/xerox820.c +++ /dev/null @@ -1,833 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Curt Coder -/*************************************************************************** - - Xerox 820 - - 12/05/2009 Skeleton driver. - -****************************************************************************/ - -/* - - TODO: - - - Xerox 820 - - floppy format has 3xcd at the end of track data - :u109: write track 0 - :u109: track description 16xff ... 109xff 3xcd - - Xerox 820-II - - floppy (read/write to FDC triggers Z80 WAIT) - - Winchester - - Shugart SA1004 (chs=256,4,40 ss=256) - - Shugart SA606 (chs=160,6, ss=256) - - Shugart SA1403D controller - - Xerox 16/8 - - Emerald Microware X120 board - - type in Monitor v1.0 from manual - - ASCII keyboard - - low-profile keyboard - - http://users.telenet.be/lust/Xerox820/index.htm - http://www.classiccmp.org/dunfield/img41867/system.htm - http://www.microcodeconsulting.com/z80/plus2.htm - - Note: - - MK-82 have same roms as original Big Board - - MK-83 have 256K of RAM - - 8-inch formats - 77 tracks, 1 head, 26 sectors, 128 bytes sector length, first sector id 1 - 77 tracks, 1 head, 26 sectors, 256 bytes sector length, first sector id 1 - - 5.25-inch formats - 40 tracks, 1 head, 18 sectors, 128 bytes sector length, first sector id 1 - 40 tracks, 2 heads, 18 sectors, 128 bytes sector length, first sector id 1 - -*/ - - -#include "includes/xerox820.h" - -/* Read/Write Handlers */ - -void xerox820_state::bankswitch(int bank) -{ - address_space &program = m_maincpu->space(AS_PROGRAM); - UINT8 *ram = m_ram->pointer(); - - if (bank) - { - /* ROM */ - program.install_rom(0x0000, 0x0fff, m_rom->base()); - program.unmap_readwrite(0x1000, 0x1fff); - program.install_ram(0x3000, 0x3fff, m_video_ram); - } - else - { - /* RAM */ - program.install_ram(0x0000, 0x3fff, ram); - } -} - -void xerox820ii_state::bankswitch(int bank) -{ - address_space &program = m_maincpu->space(AS_PROGRAM); - UINT8 *ram = m_ram->pointer(); - - if (bank) - { - /* ROM */ - program.install_rom(0x0000, 0x1fff, m_rom->base()); - program.unmap_readwrite(0x2000, 0x2fff); - program.install_ram(0x3000, 0x3fff, m_video_ram); - program.unmap_readwrite(0x4000, 0xbfff); - } - else - { - /* RAM */ - program.install_ram(0x0000, 0xbfff, ram); - } -} - -READ8_MEMBER( xerox820_state::fdc_r ) -{ - return m_fdc->gen_r(offset) ^ 0xff; -} - -WRITE8_MEMBER( xerox820_state::fdc_w ) -{ - m_fdc->gen_w(offset, data ^ 0xff); -} - -WRITE8_MEMBER( xerox820_state::scroll_w ) -{ - m_scroll = (offset >> 8) & 0x1f; -} - -#ifdef UNUSED_CODE -WRITE8_MEMBER( xerox820_state::x120_system_w ) -{ - /* - - bit signal description - - 0 DSEL0 drive select bit 0 (01=A, 10=B, 00=C, 11=D) - 1 DSEL1 drive select bit 1 - 2 SIDE side select - 3 VATT video attribute (0=inverse, 1=blinking) - 4 BELL bell trigger - 5 DENSITY density (0=double, 1=single) - 6 _MOTOR disk motor (0=on, 1=off) - 7 BANK memory bank switch (0=RAM, 1=ROM/video) - - */ -} -#endif - -WRITE8_MEMBER( xerox820ii_state::bell_w ) -{ - m_speaker->level_w(offset); -} - -WRITE8_MEMBER( xerox820ii_state::slden_w ) -{ - m_fdc->dden_w(offset); -} - -WRITE8_MEMBER( xerox820ii_state::chrom_w ) -{ - m_chrom = offset; -} - -WRITE8_MEMBER( xerox820ii_state::lowlite_w ) -{ - m_lowlite = data; -} - -WRITE8_MEMBER( xerox820ii_state::sync_w ) -{ - if (offset) - { - /* set external clocks for synchronous sio A */ - } - else - { - /* set internal clocks for asynchronous sio A */ - } -} - -/* Memory Maps */ - -static ADDRESS_MAP_START( xerox820_mem, AS_PROGRAM, 8, xerox820_state ) - ADDRESS_MAP_UNMAP_HIGH - AM_RANGE(0x3000, 0x3fff) AM_RAM AM_SHARE("video_ram") - AM_RANGE(0x4000, 0xffff) AM_RAM -ADDRESS_MAP_END - -static ADDRESS_MAP_START( xerox820_io, AS_IO, 8, xerox820_state ) - AM_RANGE(0x00, 0x00) AM_MIRROR(0xff03) AM_DEVWRITE(COM8116_TAG, com8116_device, str_w) - AM_RANGE(0x04, 0x07) AM_MIRROR(0xff00) AM_DEVREADWRITE(Z80SIO_TAG, z80sio0_device, ba_cd_r, ba_cd_w) - AM_RANGE(0x08, 0x0b) AM_MIRROR(0xff00) AM_DEVREADWRITE(Z80PIO_GP_TAG, z80pio_device, read_alt, write_alt) - AM_RANGE(0x0c, 0x0c) AM_MIRROR(0xff03) AM_DEVWRITE(COM8116_TAG, com8116_device, stt_w) - AM_RANGE(0x10, 0x13) AM_MIRROR(0xff00) AM_READWRITE(fdc_r, fdc_w) - AM_RANGE(0x14, 0x14) AM_MIRROR(0xff03) AM_MASK(0xff00) AM_WRITE(scroll_w) - AM_RANGE(0x18, 0x1b) AM_MIRROR(0xff00) AM_DEVREADWRITE(Z80CTC_TAG, z80ctc_device, read, write) - AM_RANGE(0x1c, 0x1f) AM_MIRROR(0xff00) AM_DEVREADWRITE(Z80PIO_KB_TAG, z80pio_device, read_alt, write_alt) -ADDRESS_MAP_END - -static ADDRESS_MAP_START( xerox820ii_mem, AS_PROGRAM, 8, xerox820ii_state ) - ADDRESS_MAP_UNMAP_HIGH - AM_RANGE(0x3000, 0x3fff) AM_RAM AM_SHARE("video_ram") - AM_RANGE(0xc000, 0xffff) AM_RAM -ADDRESS_MAP_END - -static ADDRESS_MAP_START( xerox820ii_io, AS_IO, 8, xerox820ii_state ) - AM_IMPORT_FROM(xerox820_io) - AM_RANGE(0x28, 0x29) AM_MIRROR(0xff00) AM_WRITE(bell_w) - AM_RANGE(0x30, 0x31) AM_MIRROR(0xff00) AM_WRITE(slden_w) - AM_RANGE(0x34, 0x35) AM_MIRROR(0xff00) AM_WRITE(chrom_w) - AM_RANGE(0x36, 0x36) AM_MIRROR(0xff00) AM_WRITE(lowlite_w) - AM_RANGE(0x68, 0x69) AM_MIRROR(0xff00) AM_WRITE(sync_w) -ADDRESS_MAP_END - -static ADDRESS_MAP_START( xerox168_mem, AS_PROGRAM, 16, xerox820ii_state ) - AM_RANGE(0x00000, 0x3ffff) AM_RAM - AM_RANGE(0xff000, 0xfffff) AM_ROM AM_REGION(I8086_TAG, 0) -ADDRESS_MAP_END - -static ADDRESS_MAP_START( mk83_mem, AS_PROGRAM, 8, xerox820_state ) - ADDRESS_MAP_UNMAP_HIGH - AM_RANGE(0x3000, 0x6fff) AM_RAM - AM_RANGE(0x7000, 0x7fff) AM_RAM AM_SHARE("video_ram") - AM_RANGE(0x8000, 0xffff) AM_RAM -ADDRESS_MAP_END - - -/* Input Ports */ - -static INPUT_PORTS_START( xerox820 ) - // inputs defined in machine/keyboard.c -INPUT_PORTS_END - -TIMER_CALLBACK_MEMBER( bigboard_state::bigboard_beepoff ) -{ - m_beeper->set_state(0); -} - -/* Z80 PIO */ - -READ8_MEMBER( xerox820_state::kbpio_pa_r ) -{ - /* - - bit signal description - - 0 - 1 - 2 - 3 PBRDY keyboard data available - 4 8/N5 8"/5.25" disk select (0=5.25", 1=8") - 5 400/460 double sided disk detect (only on Etch 2 PCB) (0=SS, 1=DS) - 6 - 7 - - */ - - UINT8 data = 0; - - // keyboard - data |= m_kbpio->rdy_b() << 3; - - // floppy - data |= m_8n5 << 4; - data |= m_400_460 << 5; - - return data; -} - -WRITE8_MEMBER( xerox820_state::kbpio_pa_w ) -{ - /* - - bit signal description - - 0 _DVSEL1 drive select 1 - 1 _DVSEL2 drive select 2 - 2 SIDE side select - 3 - 4 - 5 - 6 NCSET2 display character set (inverted and connected to chargen A10) - 7 BANK bank switching (0=RAM, 1=ROM/videoram) - - */ - - /* drive select */ - floppy_image_device *floppy = NULL; - - if (BIT(data, 0)) floppy = m_floppy0->get_device(); - if (BIT(data, 1)) floppy = m_floppy1->get_device(); - - m_fdc->set_floppy(floppy); - - if (floppy) - { - int _8n5 = (floppy->get_form_factor() == floppy_image::FF_8); - - if (m_8n5 != _8n5) - { - m_8n5 = _8n5; - - m_fdc->set_unscaled_clock(m_8n5 ? XTAL_20MHz/10 : XTAL_20MHz/20); - } - - m_400_460 = !floppy->twosid_r(); - - floppy->mon_w(0); - - floppy->ss_w(BIT(data, 2)); - } - - /* display character set */ - m_ncset2 = !BIT(data, 6); - - /* bank switching */ - bankswitch(BIT(data, 7)); -} - -WRITE8_MEMBER( bigboard_state::kbpio_pa_w ) -{ - xerox820_state::kbpio_pa_w(space, offset, data); - - /* beeper on bigboard */ - if (BIT(data, 5) & (!m_bit5)) - { - machine().scheduler().timer_set(attotime::from_msec(40), timer_expired_delegate(FUNC(bigboard_state::bigboard_beepoff),this)); - m_beeper->set_state(1); - } - m_bit5 = BIT(data, 5); -} - -READ8_MEMBER( xerox820_state::kbpio_pb_r ) -{ - /* - - bit description - - 0 KB0 - 1 KB1 - 2 KB2 - 3 KB3 - 4 KB4 - 5 KB5 - 6 KB6 - 7 KB7 - - */ - - return m_kb->read() ^ 0xff; -} - -WRITE8_MEMBER( xerox820ii_state::rdpio_pb_w ) -{ - /* - - bit description - - 0 NBSY - 1 NMSG - 2 NC/D - 3 NREQ - 4 NI/O - 5 NSEL - 6 LS74 Q - 7 NRST - */ - - m_sasibus->write_sel(!BIT(data, 5)); - m_sasibus->write_rst(!BIT(data, 7)); - // TODO: LS74 Q -} - -WRITE_LINE_MEMBER( xerox820ii_state::rdpio_pardy_w ) -{ - // TODO -} - -/* Z80 CTC */ - -TIMER_DEVICE_CALLBACK_MEMBER( xerox820_state::ctc_tick ) -{ - m_ctc->trg0(1); - m_ctc->trg0(0); -} - -/* Z80 Daisy Chain */ - -static const z80_daisy_config xerox820_daisy_chain[] = -{ - { Z80SIO_TAG }, - { Z80PIO_KB_TAG }, - { Z80PIO_GP_TAG }, - { Z80CTC_TAG }, - { NULL } -}; - -/* WD1771 Interface */ - -static SLOT_INTERFACE_START( xerox820_floppies ) - SLOT_INTERFACE( "sa400", FLOPPY_525_SSSD_35T ) // Shugart SA-400 - SLOT_INTERFACE( "sa450", FLOPPY_525_DD ) // Shugart SA-450 - SLOT_INTERFACE( "sa800", FLOPPY_8_SSDD ) // Shugart SA-800 - SLOT_INTERFACE( "sa850", FLOPPY_8_DSDD ) // Shugart SA-850 -SLOT_INTERFACE_END - -void xerox820_state::update_nmi() -{ - int halt = m_maincpu->state_int(Z80_HALT); - int state = (halt && (m_fdc_irq || m_fdc_drq)) ? ASSERT_LINE : CLEAR_LINE; - - m_maincpu->set_input_line(INPUT_LINE_NMI, state); -} - -WRITE_LINE_MEMBER( xerox820_state::fdc_intrq_w ) -{ - m_fdc_irq = state; - - update_nmi(); -} - -WRITE_LINE_MEMBER( xerox820_state::fdc_drq_w ) -{ - m_fdc_drq = state; - - update_nmi(); -} - -/* COM8116 Interface */ - -WRITE_LINE_MEMBER( xerox820_state::fr_w ) -{ - m_sio->rxca_w(state); - m_sio->txca_w(state); -} - -/* Video */ - -UINT32 xerox820_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) -{ - UINT8 y,ra,chr,gfx; - UINT16 sy=0,ma=(m_scroll + 1) * 0x80,x; - const pen_t *pen=m_palette->pens(); - - m_framecnt++; - - for (y = 0; y < 24; y++) - { - if (ma > 0xb80) ma = 0; - - for (ra = 0; ra < 10; ra++) - { - UINT32 *p = &bitmap.pix32(sy++); - - for (x = ma; x < ma + 80; x++) - { - if (ra < 8) - { - chr = m_video_ram[x & XEROX820_VIDEORAM_MASK] ^ 0x80; - - /* Take care of flashing characters */ - if ((chr < 0x80) && (m_framecnt & 0x08)) - chr |= 0x80; - - /* get pattern of pixels for that character scanline */ - gfx = m_char_rom->base()[(m_ncset2 << 10) | (chr<<3) | ra ]; - } - else - gfx = 0xff; - - /* Display a scanline of a character (7 pixels) */ - *p++ = pen[0]; - *p++ = pen[BIT(gfx, 4) ^ 1]; - *p++ = pen[BIT(gfx, 3) ^ 1]; - *p++ = pen[BIT(gfx, 2) ^ 1]; - *p++ = pen[BIT(gfx, 1) ^ 1]; - *p++ = pen[BIT(gfx, 0) ^ 1]; - *p++ = pen[0]; - } - } - ma+=128; - } - return 0; -} - -/* Machine Initialization */ - -void xerox820_state::machine_start() -{ - // state saving - save_item(NAME(m_scroll)); - save_item(NAME(m_ncset2)); - save_item(NAME(m_vatt)); - save_item(NAME(m_fdc_irq)); - save_item(NAME(m_fdc_drq)); - save_item(NAME(m_8n5)); - save_item(NAME(m_400_460)); -} - -void xerox820_state::machine_reset() -{ - bankswitch(1); - - m_fdc->reset(); -} - -void bigboard_state::machine_reset() -{ - bankswitch(1); - - /* bigboard has a one-pulse output to drive a user-supplied beeper */ - m_beeper->set_state(0); - m_beeper->set_frequency(950); - - m_fdc->reset(); -} - -void xerox820ii_state::machine_reset() -{ - bankswitch(1); - - m_fdc->reset(); -} - - -/* F4 Character Displayer */ -static const gfx_layout xerox820_charlayout = -{ - 8, 8, /* 8 x 8 characters */ - 256, /* 256 characters */ - 1, /* 1 bits per pixel */ - { 0 }, /* no bitplanes */ - /* x offsets */ - { 0, 1, 2, 3, 4, 5, 6, 7 }, - /* y offsets */ - { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 }, - 8*8 /* every char takes 8 bytes */ -}; - -static const gfx_layout xerox820_gfxlayout = -{ - 8, 8, /* 8 x 8 characters */ - 256, /* 256 characters */ - 1, /* 1 bits per pixel */ - { 0 }, /* no bitplanes */ - /* x offsets */ - { 0, 1, 2, 3, 4, 5, 6, 7 }, - /* y offsets */ - { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 }, - 8*8 /* every char takes 8 bytes */ -}; - -static GFXDECODE_START( xerox820 ) - GFXDECODE_ENTRY( "chargen", 0x0000, xerox820_charlayout, 0, 1 ) -GFXDECODE_END - -static GFXDECODE_START( xerox820ii ) - GFXDECODE_ENTRY( "chargen", 0x0000, xerox820_charlayout, 0, 1 ) - GFXDECODE_ENTRY( "chargen", 0x0800, xerox820_gfxlayout, 0, 1 ) -GFXDECODE_END - -/* Machine Drivers */ - -static MACHINE_CONFIG_START( xerox820, xerox820_state ) - /* basic machine hardware */ - MCFG_CPU_ADD(Z80_TAG, Z80, XTAL_20MHz/8) - MCFG_CPU_PROGRAM_MAP(xerox820_mem) - MCFG_CPU_IO_MAP(xerox820_io) - MCFG_CPU_CONFIG(xerox820_daisy_chain) - - /* video hardware */ - MCFG_SCREEN_ADD(SCREEN_TAG, RASTER) - MCFG_SCREEN_UPDATE_DRIVER(xerox820_state, screen_update) - MCFG_SCREEN_RAW_PARAMS(XTAL_10_69425MHz, 700, 0, 560, 260, 0, 240) - - MCFG_GFXDECODE_ADD("gfxdecode", "palette", xerox820) - MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette") - - /* devices */ - MCFG_DEVICE_ADD(Z80PIO_KB_TAG, Z80PIO, XTAL_20MHz/8) - MCFG_Z80PIO_OUT_INT_CB(INPUTLINE(Z80_TAG, INPUT_LINE_IRQ0)) - MCFG_Z80PIO_IN_PA_CB(READ8(xerox820_state, kbpio_pa_r)) - MCFG_Z80PIO_OUT_PA_CB(WRITE8(xerox820_state, kbpio_pa_w)) - MCFG_Z80PIO_IN_PB_CB(READ8(xerox820_state, kbpio_pb_r)) - - MCFG_DEVICE_ADD(Z80PIO_GP_TAG, Z80PIO, XTAL_20MHz/8) - MCFG_Z80PIO_OUT_INT_CB(INPUTLINE(Z80_TAG, INPUT_LINE_IRQ0)) - - MCFG_DEVICE_ADD(Z80CTC_TAG, Z80CTC, XTAL_20MHz/8) - MCFG_Z80CTC_INTR_CB(INPUTLINE(Z80_TAG, INPUT_LINE_IRQ0)) - MCFG_Z80CTC_ZC0_CB(DEVWRITELINE(Z80CTC_TAG, z80ctc_device, trg1)) - MCFG_Z80CTC_ZC2_CB(DEVWRITELINE(Z80CTC_TAG, z80ctc_device, trg3)) - //MCFG_TIMER_DRIVER_ADD_PERIODIC("ctc", xerox820_state, ctc_tick, attotime::from_hz(XTAL_20MHz/8)) - - MCFG_FD1771_ADD(FD1771_TAG, XTAL_20MHz/20) - MCFG_WD_FDC_INTRQ_CALLBACK(WRITELINE(xerox820_state, fdc_intrq_w)) - MCFG_WD_FDC_DRQ_CALLBACK(WRITELINE(xerox820_state, fdc_drq_w)) - MCFG_FLOPPY_DRIVE_ADD(FD1771_TAG":0", xerox820_floppies, "sa400", floppy_image_device::default_floppy_formats) - MCFG_FLOPPY_DRIVE_ADD(FD1771_TAG":1", xerox820_floppies, "sa400", floppy_image_device::default_floppy_formats) - - MCFG_Z80SIO0_ADD(Z80SIO_TAG, XTAL_20MHz/8, 0, 0, 0, 0) - MCFG_Z80DART_OUT_TXDA_CB(DEVWRITELINE(RS232_A_TAG, rs232_port_device, write_txd)) - MCFG_Z80DART_OUT_DTRA_CB(DEVWRITELINE(RS232_A_TAG, rs232_port_device, write_dtr)) - MCFG_Z80DART_OUT_RTSA_CB(DEVWRITELINE(RS232_A_TAG, rs232_port_device, write_rts)) - MCFG_Z80DART_OUT_TXDB_CB(DEVWRITELINE(RS232_B_TAG, rs232_port_device, write_txd)) - MCFG_Z80DART_OUT_DTRB_CB(DEVWRITELINE(RS232_B_TAG, rs232_port_device, write_dtr)) - MCFG_Z80DART_OUT_RTSB_CB(DEVWRITELINE(RS232_B_TAG, rs232_port_device, write_rts)) - MCFG_Z80DART_OUT_INT_CB(INPUTLINE(Z80_TAG, INPUT_LINE_IRQ0)) - - MCFG_RS232_PORT_ADD(RS232_A_TAG, default_rs232_devices, NULL) - MCFG_RS232_RXD_HANDLER(DEVWRITELINE(Z80SIO_TAG, z80sio0_device, rxa_w)) - - MCFG_RS232_PORT_ADD(RS232_B_TAG, default_rs232_devices, NULL) - MCFG_RS232_RXD_HANDLER(DEVWRITELINE(Z80SIO_TAG, z80sio0_device, rxb_w)) - - MCFG_DEVICE_ADD(COM8116_TAG, COM8116, XTAL_5_0688MHz) - MCFG_COM8116_FR_HANDLER(WRITELINE(xerox820_state, fr_w)) - MCFG_COM8116_FT_HANDLER(DEVWRITELINE(Z80SIO_TAG, z80dart_device, rxtxcb_w)) - - MCFG_DEVICE_ADD(KEYBOARD_TAG, XEROX_820_KEYBOARD, 0) - MCFG_XEROX_820_KEYBOARD_KBSTB_CALLBACK(DEVWRITELINE(Z80PIO_KB_TAG, z80pio_device, strobe_b)) - - /* internal ram */ - MCFG_RAM_ADD(RAM_TAG) - MCFG_RAM_DEFAULT_SIZE("64K") - - // software lists - MCFG_SOFTWARE_LIST_ADD("flop_list", "xerox820") -MACHINE_CONFIG_END - -static MACHINE_CONFIG_DERIVED_CLASS( bigboard, xerox820, bigboard_state ) - /* sound hardware */ - MCFG_SPEAKER_STANDARD_MONO("mono") - MCFG_SOUND_ADD("beeper", BEEP, 0) - MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00) /* bigboard only */ -MACHINE_CONFIG_END - -static MACHINE_CONFIG_START( xerox820ii, xerox820ii_state ) - /* basic machine hardware */ - MCFG_CPU_ADD(Z80_TAG, Z80, XTAL_16MHz/4) - MCFG_CPU_PROGRAM_MAP(xerox820ii_mem) - MCFG_CPU_IO_MAP(xerox820ii_io) - MCFG_CPU_CONFIG(xerox820_daisy_chain) - - /* video hardware */ - MCFG_SCREEN_ADD(SCREEN_TAG, RASTER) - MCFG_SCREEN_UPDATE_DRIVER(xerox820ii_state, screen_update) - MCFG_SCREEN_RAW_PARAMS(XTAL_10_69425MHz, 700, 0, 560, 260, 0, 240) - - MCFG_GFXDECODE_ADD("gfxdecode", "palette", xerox820ii) - MCFG_PALETTE_ADD_BLACK_AND_WHITE("palette") - - /* sound hardware */ - MCFG_SPEAKER_STANDARD_MONO("mono") - MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0) - MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50) - - /* devices */ - MCFG_DEVICE_ADD(Z80PIO_KB_TAG, Z80PIO, XTAL_16MHz/4) - MCFG_Z80PIO_OUT_INT_CB(INPUTLINE(Z80_TAG, INPUT_LINE_IRQ0)) - MCFG_Z80PIO_IN_PA_CB(READ8(xerox820_state, kbpio_pa_r)) - MCFG_Z80PIO_OUT_PA_CB(WRITE8(xerox820_state, kbpio_pa_w)) - MCFG_Z80PIO_IN_PB_CB(READ8(xerox820_state, kbpio_pb_r)) - - MCFG_DEVICE_ADD(Z80PIO_GP_TAG, Z80PIO, XTAL_16MHz/4) - MCFG_Z80PIO_OUT_INT_CB(INPUTLINE(Z80_TAG, INPUT_LINE_IRQ0)) - - MCFG_DEVICE_ADD(Z80PIO_RD_TAG, Z80PIO, XTAL_20MHz/8) - MCFG_Z80PIO_OUT_INT_CB(INPUTLINE(Z80_TAG, INPUT_LINE_IRQ0)) - MCFG_Z80PIO_IN_PA_CB(DEVREAD8("sasi_data_in", input_buffer_device, read)) - MCFG_Z80PIO_OUT_PA_CB(DEVWRITE8("sasi_data_out", output_latch_device, write)) - MCFG_Z80PIO_OUT_ARDY_CB(WRITELINE(xerox820ii_state, rdpio_pardy_w)) - MCFG_Z80PIO_IN_PB_CB(DEVREAD8("sasi_ctrl_in", input_buffer_device, read)) - MCFG_Z80PIO_OUT_PB_CB(WRITE8(xerox820ii_state, rdpio_pb_w)) - - MCFG_DEVICE_ADD(Z80CTC_TAG, Z80CTC, XTAL_16MHz/4) - MCFG_Z80CTC_INTR_CB(INPUTLINE(Z80_TAG, INPUT_LINE_IRQ0)) - MCFG_Z80CTC_ZC0_CB(DEVWRITELINE(Z80CTC_TAG, z80ctc_device, trg1)) - MCFG_Z80CTC_ZC2_CB(DEVWRITELINE(Z80CTC_TAG, z80ctc_device, trg3)) - //MCFG_TIMER_DRIVER_ADD_PERIODIC("ctc", xerox820_state, ctc_tick, attotime::from_hz(XTAL_16MHz/4)) - - MCFG_FD1797_ADD(FD1797_TAG, XTAL_16MHz/8) - MCFG_WD_FDC_INTRQ_CALLBACK(WRITELINE(xerox820_state, fdc_intrq_w)) - MCFG_WD_FDC_DRQ_CALLBACK(WRITELINE(xerox820_state, fdc_drq_w)) - MCFG_FLOPPY_DRIVE_ADD(FD1797_TAG":0", xerox820_floppies, "sa450", floppy_image_device::default_floppy_formats) - MCFG_FLOPPY_DRIVE_ADD(FD1797_TAG":1", xerox820_floppies, "sa450", floppy_image_device::default_floppy_formats) - - MCFG_Z80SIO0_ADD(Z80SIO_TAG, XTAL_16MHz/4, 0, 0, 0, 0) - MCFG_Z80DART_OUT_TXDA_CB(DEVWRITELINE(RS232_A_TAG, rs232_port_device, write_txd)) - MCFG_Z80DART_OUT_DTRA_CB(DEVWRITELINE(RS232_A_TAG, rs232_port_device, write_dtr)) - MCFG_Z80DART_OUT_RTSA_CB(DEVWRITELINE(RS232_A_TAG, rs232_port_device, write_rts)) - MCFG_Z80DART_OUT_TXDB_CB(DEVWRITELINE(RS232_B_TAG, rs232_port_device, write_txd)) - MCFG_Z80DART_OUT_DTRB_CB(DEVWRITELINE(RS232_B_TAG, rs232_port_device, write_dtr)) - MCFG_Z80DART_OUT_RTSB_CB(DEVWRITELINE(RS232_B_TAG, rs232_port_device, write_rts)) - MCFG_Z80DART_OUT_INT_CB(INPUTLINE(Z80_TAG, INPUT_LINE_IRQ0)) - - MCFG_RS232_PORT_ADD(RS232_A_TAG, default_rs232_devices, NULL) - MCFG_RS232_RXD_HANDLER(DEVWRITELINE(Z80SIO_TAG, z80sio0_device, rxa_w)) - - MCFG_RS232_PORT_ADD(RS232_B_TAG, default_rs232_devices, NULL) - MCFG_RS232_RXD_HANDLER(DEVWRITELINE(Z80SIO_TAG, z80sio0_device, rxb_w)) - - MCFG_DEVICE_ADD(COM8116_TAG, COM8116, XTAL_5_0688MHz) - MCFG_COM8116_FR_HANDLER(WRITELINE(xerox820_state, fr_w)) - MCFG_COM8116_FT_HANDLER(DEVWRITELINE(Z80SIO_TAG, z80dart_device, rxtxcb_w)) - - MCFG_DEVICE_ADD(KEYBOARD_TAG, XEROX_820_KEYBOARD, 0) - MCFG_XEROX_820_KEYBOARD_KBSTB_CALLBACK(DEVWRITELINE(Z80PIO_KB_TAG, z80pio_device, strobe_b)) - - // SASI bus - MCFG_DEVICE_ADD(SASIBUS_TAG, SCSI_PORT, 0) - MCFG_SCSI_DATA_INPUT_BUFFER("sasi_data_in") - MCFG_SCSI_BSY_HANDLER(DEVWRITELINE("sasi_ctrl_in", input_buffer_device, write_bit0)) MCFG_DEVCB_XOR(1) - MCFG_SCSI_MSG_HANDLER(DEVWRITELINE("sasi_ctrl_in", input_buffer_device, write_bit1)) MCFG_DEVCB_XOR(1) - MCFG_SCSI_CD_HANDLER(DEVWRITELINE("sasi_ctrl_in", input_buffer_device, write_bit2)) MCFG_DEVCB_XOR(1) - MCFG_SCSI_REQ_HANDLER(DEVWRITELINE("sasi_ctrl_in", input_buffer_device, write_bit3)) MCFG_DEVCB_XOR(1) - MCFG_SCSI_IO_HANDLER(DEVWRITELINE("sasi_ctrl_in", input_buffer_device, write_bit4)) MCFG_DEVCB_XOR(1) - - MCFG_SCSIDEV_ADD(SASIBUS_TAG ":" SCSI_PORT_DEVICE1, "harddisk", SA1403D, SCSI_ID_0) - - MCFG_SCSI_OUTPUT_LATCH_ADD("sasi_data_out", SASIBUS_TAG) - MCFG_DEVICE_ADD("sasi_data_in", INPUT_BUFFER, 0) - MCFG_DEVICE_ADD("sasi_ctrl_in", INPUT_BUFFER, 0) - - /* internal ram */ - MCFG_RAM_ADD(RAM_TAG) - MCFG_RAM_DEFAULT_SIZE("64K") - - // software lists - MCFG_SOFTWARE_LIST_ADD("flop_list", "xerox820ii") -MACHINE_CONFIG_END - -static MACHINE_CONFIG_DERIVED( xerox168, xerox820ii ) - MCFG_CPU_ADD(I8086_TAG, I8086, 4770000) - MCFG_CPU_PROGRAM_MAP(xerox168_mem) - - /* internal ram */ - MCFG_RAM_MODIFY(RAM_TAG) - MCFG_RAM_DEFAULT_SIZE("192K") - MCFG_RAM_EXTRA_OPTIONS("320K") -MACHINE_CONFIG_END - -static MACHINE_CONFIG_DERIVED( mk83, xerox820 ) - MCFG_CPU_MODIFY(Z80_TAG) - MCFG_CPU_PROGRAM_MAP(mk83_mem) -MACHINE_CONFIG_END - -/* ROMs */ - -ROM_START( bigboard ) - ROM_REGION( 0x1000, Z80_TAG, 0 ) - ROM_LOAD( "bigboard.u67", 0x0000, 0x0800, CRC(5a85a228) SHA1(d51a2cbd0aae80315bda9530275aabfe8305364e) ) - - ROM_REGION( 0x800, "chargen", 0 ) - ROM_LOAD( "bigboard.u73", 0x0000, 0x0800, CRC(10bf0d81) SHA1(7ec73670a4d9d6421a5d6a4c4edc8b7c87923f6c) ) -ROM_END - -#define rom_mk82 rom_bigboard - -ROM_START( x820 ) - ROM_REGION( 0x1000, Z80_TAG, 0 ) - ROM_DEFAULT_BIOS( "v20" ) - ROM_SYSTEM_BIOS( 0, "v10", "Xerox Monitor v1.0" ) - ROMX_LOAD( "x820v10.u64", 0x0000, 0x0800, NO_DUMP, ROM_BIOS(1) ) - ROMX_LOAD( "x820v10.u63", 0x0800, 0x0800, NO_DUMP, ROM_BIOS(1) ) - ROM_SYSTEM_BIOS( 1, "v20", "Xerox Monitor v2.0" ) - ROMX_LOAD( "x820v20.u64", 0x0000, 0x0800, CRC(2fc227e2) SHA1(b4ea0ae23d281a687956e8a514cb364a1372678e), ROM_BIOS(2) ) - ROMX_LOAD( "x820v20.u63", 0x0800, 0x0800, CRC(bc11f834) SHA1(4fd2b209a6e6ff9b0c41800eb5228c34a0d7f7ef), ROM_BIOS(2) ) - ROM_SYSTEM_BIOS( 2, "smart23", "MICROCode SmartROM v2.3" ) - ROMX_LOAD( "mxkx25a.u64", 0x0000, 0x0800, CRC(7ec5f100) SHA1(5d0ff35a51aa18afc0d9c20ef99ff5d9d3f2075b), ROM_BIOS(3) ) - ROMX_LOAD( "mxkx25b.u63", 0x0800, 0x0800, CRC(a7543798) SHA1(886e617e1003d13f86f33085cbd49391b77291a3), ROM_BIOS(3) ) - ROM_SYSTEM_BIOS( 3, "plus2", "MICROCode Plus2 v0.2a" ) - ROMX_LOAD( "p2x25a.u64", 0x0000, 0x0800, CRC(3ccd7a8f) SHA1(6e46c88f03fc7289595dd6bec95e23bb13969525), ROM_BIOS(4) ) - ROMX_LOAD( "p2x25b.u63", 0x0800, 0x0800, CRC(1e580391) SHA1(e91f8ce82586df33c0d6d02eb005e8079f4de67d), ROM_BIOS(4) ) - - ROM_REGION( 0x800, "chargen", 0 ) - ROM_LOAD( "x820.u92", 0x0000, 0x0800, CRC(b823fa98) SHA1(ad0ea346aa257a53ad5701f4201896a2b3a0f928) ) -ROM_END - -ROM_START( x820ii ) - ROM_REGION( 0x2000, Z80_TAG, 0 ) - ROM_DEFAULT_BIOS( "v404" ) - ROM_SYSTEM_BIOS( 0, "v400", "Balcones Operating System v4.00" ) // Initial U.S. 3-ROM set: support for double density disks - ROMX_LOAD( "v400.u33", 0x0000, 0x0800, NO_DUMP, ROM_BIOS(1) ) - ROMX_LOAD( "v400.u34", 0x0800, 0x0800, NO_DUMP, ROM_BIOS(1) ) - ROMX_LOAD( "v400.u35", 0x1000, 0x0800, NO_DUMP, ROM_BIOS(1) ) - ROM_SYSTEM_BIOS( 1, "v401", "Balcones Operating System v4.01" ) // Corrected overflow problem with large data files - ROMX_LOAD( "v401.u33", 0x0000, 0x0800, NO_DUMP, ROM_BIOS(2) ) - ROMX_LOAD( "v401.u34", 0x0800, 0x0800, NO_DUMP, ROM_BIOS(2) ) - ROMX_LOAD( "v401.u35", 0x1000, 0x0800, NO_DUMP, ROM_BIOS(2) ) - ROM_SYSTEM_BIOS( 2, "v402", "Balcones Operating System v4.02" ) // Rank Xerox (European) boot ROM version of US 4.01 - ROMX_LOAD( "v402.u33", 0x0000, 0x0800, NO_DUMP, ROM_BIOS(3) ) - ROMX_LOAD( "v402.u34", 0x0800, 0x0800, NO_DUMP, ROM_BIOS(3) ) - ROMX_LOAD( "v402.u35", 0x1000, 0x0800, NO_DUMP, ROM_BIOS(3) ) - ROM_SYSTEM_BIOS( 3, "v403", "Balcones Operating System v4.03" ) // Incorporate programmable communications option and support for the low-profile keyboard (4-ROM set and type-ahead input buffer) - ROMX_LOAD( "v403.u33", 0x0000, 0x0800, NO_DUMP, ROM_BIOS(4) ) - ROMX_LOAD( "v403.u34", 0x0800, 0x0800, NO_DUMP, ROM_BIOS(4) ) - ROMX_LOAD( "v403.u35", 0x1000, 0x0800, NO_DUMP, ROM_BIOS(4) ) - ROMX_LOAD( "v403.u36", 0x1800, 0x0800, NO_DUMP, ROM_BIOS(4) ) - ROM_SYSTEM_BIOS( 4, "v404", "Balcones Operating System v4.04" ) // Changes sign-on message from Xerox 820-II to Xerox - ROMX_LOAD( "537p3652.u33", 0x0000, 0x0800, CRC(7807cfbb) SHA1(bd3cc5cc5c59c84a50747aae5c17eb4617b0dbc3), ROM_BIOS(5) ) - ROMX_LOAD( "537p3653.u34", 0x0800, 0x0800, CRC(a9c6c0c3) SHA1(c2da9d1bf0da96e6b8bfa722783e411d2fe6deb9), ROM_BIOS(5) ) - ROMX_LOAD( "537p3654.u35", 0x1000, 0x0800, CRC(a8a07223) SHA1(e8ae1ebf2d7caf76771205f577b88ae493836ac9), ROM_BIOS(5) ) - ROMX_LOAD( "v404.u36", 0x1800, 0x0800, NO_DUMP, ROM_BIOS(5) ) // fitted for low-profile keyboard only - ROM_SYSTEM_BIOS( 5, "v50", "Balcones Operating System v5.0" ) // Operating system modifications for DEM and new 5.25" disk controller (4 new boot ROMs) - ROMX_LOAD( "v50.u33", 0x0000, 0x0800, NO_DUMP, ROM_BIOS(6) ) - ROMX_LOAD( "v50.u34", 0x0800, 0x0800, NO_DUMP, ROM_BIOS(6) ) - ROMX_LOAD( "v50.u35", 0x1000, 0x0800, NO_DUMP, ROM_BIOS(6) ) - ROMX_LOAD( "v50.u36", 0x1800, 0x0800, NO_DUMP, ROM_BIOS(6) ) // fitted for low-profile keyboard only - - ROM_REGION( 0x1000, "chargen", 0 ) - ROM_LOAD( "x820ii.u57", 0x0000, 0x0800, CRC(1a50f600) SHA1(df4470c80611c14fa7ea8591f741fbbecdfe4fd9) ) - ROM_LOAD( "x820ii.u58", 0x0800, 0x0800, CRC(aca4b9b3) SHA1(77f41470b0151945b8d3c3a935fc66409e9157b3) ) -ROM_END - -ROM_START( x168 ) - ROM_REGION( 0x2000, Z80_TAG, 0 ) - ROM_DEFAULT_BIOS( "v404" ) - ROM_SYSTEM_BIOS( 0, "v404", "Balcones Operating System v4.04" ) // Changes sign-on message from Xerox 820-II to Xerox - ROMX_LOAD( "537p3652.u33", 0x0000, 0x0800, CRC(7807cfbb) SHA1(bd3cc5cc5c59c84a50747aae5c17eb4617b0dbc3), ROM_BIOS(1) ) - ROMX_LOAD( "537p3653.u34", 0x0800, 0x0800, CRC(a9c6c0c3) SHA1(c2da9d1bf0da96e6b8bfa722783e411d2fe6deb9), ROM_BIOS(1) ) - ROMX_LOAD( "537p3654.u35", 0x1000, 0x0800, CRC(a8a07223) SHA1(e8ae1ebf2d7caf76771205f577b88ae493836ac9), ROM_BIOS(1) ) - ROMX_LOAD( "v404.u36", 0x1800, 0x0800, NO_DUMP, ROM_BIOS(1) ) // fitted for low-profile keyboard only - ROM_SYSTEM_BIOS( 1, "v50", "Balcones Operating System v5.0" ) // Operating system modifications for DEM and new 5.25" disk controller (4 new boot ROMs) - ROMX_LOAD( "v50.u33", 0x0000, 0x0800, NO_DUMP, ROM_BIOS(2) ) - ROMX_LOAD( "v50.u34", 0x0800, 0x0800, NO_DUMP, ROM_BIOS(2) ) - ROMX_LOAD( "v50.u35", 0x1000, 0x0800, NO_DUMP, ROM_BIOS(2) ) - ROMX_LOAD( "v50.u36", 0x1800, 0x0800, NO_DUMP, ROM_BIOS(2) ) // fitted for low-profile keyboard only - - ROM_REGION( 0x1000, I8086_TAG, 0 ) - ROM_LOAD( "8086.u33", 0x0000, 0x1000, CRC(ee49e3dc) SHA1(a5f20c74fc53f9d695d8894534ab69a39e2c38d8) ) - - ROM_REGION( 0x1000, "chargen", 0 ) - ROM_LOAD( "x820ii.u57", 0x0000, 0x0800, CRC(1a50f600) SHA1(df4470c80611c14fa7ea8591f741fbbecdfe4fd9) ) - ROM_LOAD( "x820ii.u58", 0x0800, 0x0800, CRC(aca4b9b3) SHA1(77f41470b0151945b8d3c3a935fc66409e9157b3) ) -ROM_END - -ROM_START( mk83 ) - ROM_REGION( 0x1000, Z80_TAG, 0 ) - ROM_LOAD( "2732mk83.bin", 0x0000, 0x1000, CRC(a845c7e1) SHA1(3ccf629c5cd384953794ac4a1d2b45678bd40e92) ) - - ROM_REGION( 0x800, "chargen", 0 ) - ROM_LOAD( "2716mk83.bin", 0x0000, 0x0800, CRC(10bf0d81) SHA1(7ec73670a4d9d6421a5d6a4c4edc8b7c87923f6c) ) -ROM_END - -/* System Drivers */ - -/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ -COMP( 1980, bigboard, 0, 0, bigboard, xerox820, driver_device, 0, "Digital Research Computers", "Big Board", 0 ) -COMP( 1981, x820, bigboard, 0, xerox820, xerox820, driver_device, 0, "Xerox", "Xerox 820", MACHINE_NO_SOUND_HW ) -COMP( 1982, mk82, bigboard, 0, bigboard, xerox820, driver_device, 0, "Scomar", "MK-82", 0 ) -COMP( 1983, x820ii, 0, 0, xerox820ii, xerox820, driver_device, 0, "Xerox", "Xerox 820-II", MACHINE_NOT_WORKING ) -COMP( 1983, x168, x820ii, 0, xerox168, xerox820, driver_device, 0, "Xerox", "Xerox 16/8", MACHINE_NOT_WORKING ) -COMP( 1983, mk83, x820ii, 0, mk83, xerox820, driver_device, 0, "Scomar", "MK-83", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW ) |