diff options
Diffstat (limited to 'src/mess/drivers/xor100.c')
-rw-r--r-- | src/mess/drivers/xor100.c | 599 |
1 files changed, 0 insertions, 599 deletions
diff --git a/src/mess/drivers/xor100.c b/src/mess/drivers/xor100.c deleted file mode 100644 index 8c2e544c544..00000000000 --- a/src/mess/drivers/xor100.c +++ /dev/null @@ -1,599 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Curt Coder -/**************************************************************************************************** - - XOR S-100-12 - -***************************************************************************************************** - - All input must be in upper case. - Summary of Monitor commands: - - D xxxx yyyy = dump memory to screen - F xxxx yyyy zz = fill memory from xxxx to yyyy-1 with zz - G xxxx = execute program at xxxx - H xxxx yyyy aa bb... = Search memory for a string of bytes - L xxxx = edit memory (. to exit) - M xxxx yyyy zzzz = Move (copy) memory - V xxxx = Ascii dump of memory to the screen (cr to continue, space to exit) - X n = Select a bank (0 works, others freeze) - - Note some of the commands are a bit buggy, eg F doesn't fill the last byte - -*****************************************************************************************************/ - -/* - - TODO: - - - cannot boot from floppy (at prompt press ^C, wait, it says 'Drive not ready') - - honor jumper settings - - CTC signal header - - serial printer - - cassette? (no mention of it in the manuals) - -*/ - - -#include "includes/xor100.h" -#include "bus/rs232/rs232.h" - -/* Read/Write Handlers */ - -enum -{ - EPROM_0000 = 0, - EPROM_F800, - EPROM_OFF -}; - -void xor100_state::bankswitch() -{ - address_space &program = m_maincpu->space(AS_PROGRAM); - int banks = m_ram->size() / 0x10000; - - switch (m_mode) - { - case EPROM_0000: - if (m_bank < banks) - { - program.install_write_bank(0x0000, 0xffff, "bank1"); - membank("bank1")->set_entry(1 + m_bank); - } - else - { - program.unmap_write(0x0000, 0xffff); - } - - program.install_read_bank(0x0000, 0xf7ff, 0x07ff, 0, "bank2"); - program.install_read_bank(0xf800, 0xffff, "bank3"); - membank("bank2")->set_entry(0); - membank("bank3")->set_entry(0); - break; - - case EPROM_F800: - if (m_bank < banks) - { - program.install_write_bank(0x0000, 0xffff, "bank1"); - program.install_read_bank(0x0000, 0xf7ff, "bank2"); - membank("bank1")->set_entry(1 + m_bank); - membank("bank2")->set_entry(1 + m_bank); - } - else - { - program.unmap_write(0x0000, 0xffff); - program.unmap_read(0x0000, 0xf7ff); - } - - program.install_read_bank(0xf800, 0xffff, "bank3"); - membank("bank3")->set_entry(0); - break; - - case EPROM_OFF: - if (m_bank < banks) - { - program.install_write_bank(0x0000, 0xffff, "bank1"); - program.install_read_bank(0x0000, 0xf7ff, "bank2"); - program.install_read_bank(0xf800, 0xffff, "bank3"); - membank("bank1")->set_entry(1 + m_bank); - membank("bank2")->set_entry(1 + m_bank); - membank("bank3")->set_entry(1 + m_bank); - } - else - { - program.unmap_write(0x0000, 0xffff); - program.unmap_read(0x0000, 0xf7ff); - program.unmap_read(0xf800, 0xffff); - } - break; - } -} - -WRITE8_MEMBER( xor100_state::mmu_w ) -{ - /* - - bit description - - 0 A16 - 1 A17 - 2 A18 - 3 A19 - 4 - 5 - 6 - 7 - - */ - - m_bank = data & 0x07; - - bankswitch(); -} - -WRITE8_MEMBER( xor100_state::prom_toggle_w ) -{ - switch (m_mode) - { - case EPROM_OFF: m_mode = EPROM_F800; break; - case EPROM_F800: m_mode = EPROM_OFF; break; - } - - bankswitch(); -} - -READ8_MEMBER( xor100_state::prom_disable_r ) -{ - m_mode = EPROM_F800; - - bankswitch(); - - return 0xff; -} - -WRITE8_MEMBER( xor100_state::baud_w ) -{ - m_dbrg->str_w(data & 0x0f); - m_dbrg->stt_w(data >> 4); -} - -READ8_MEMBER( xor100_state::fdc_r ) -{ - return m_fdc->gen_r(offset) ^ 0xff; -} - -WRITE8_MEMBER( xor100_state::fdc_w ) -{ - m_fdc->gen_w(offset, data ^ 0xff); -} - -READ8_MEMBER( xor100_state::fdc_wait_r ) -{ - /* - - bit description - - 0 - 1 - 2 - 3 - 4 - 5 - 6 - 7 FDC IRQ - - */ - - if (!space.debugger_access()) - { - if (!m_fdc_irq && !m_fdc_drq) - { - fatalerror("Z80 WAIT not supported by MAME core\n"); - m_maincpu->set_input_line(Z80_INPUT_LINE_WAIT, ASSERT_LINE); - } - } - - return !m_fdc_irq << 7; -} - -WRITE8_MEMBER( xor100_state::fdc_dcont_w ) -{ - /* - - bit description - - 0 DS0 - 1 DS1 - 2 DS2 - 3 DS3 - 4 - 5 - 6 - 7 _HLSTB - - */ - - // 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(); - if (BIT(data, 2)) floppy = m_floppy2->get_device(); - if (BIT(data, 3)) floppy = m_floppy3->get_device(); - - m_fdc->set_floppy(floppy); - - if (floppy) floppy->mon_w(0); -} - -WRITE8_MEMBER( xor100_state::fdc_dsel_w ) -{ - /* - - bit description - - 0 J - 1 K - 2 - 3 - 4 - 5 - 6 - 7 - - */ - - switch (data & 0x03) - { - case 0: break; - case 1: m_fdc_dden = 1; break; - case 2: m_fdc_dden = 0; break; - case 3: m_fdc_dden = !m_fdc_dden; break; - } - - m_fdc->dden_w(m_fdc_dden); -} - -/* Memory Maps */ - -static ADDRESS_MAP_START( xor100_mem, AS_PROGRAM, 8, xor100_state ) - AM_RANGE(0x0000, 0xffff) AM_WRITE_BANK("bank1") - AM_RANGE(0x0000, 0xf7ff) AM_READ_BANK("bank2") - AM_RANGE(0xf800, 0xffff) AM_READ_BANK("bank3") -ADDRESS_MAP_END - -static ADDRESS_MAP_START( xor100_io, AS_IO, 8, xor100_state ) - ADDRESS_MAP_GLOBAL_MASK(0xff) - AM_RANGE(0x00, 0x00) AM_DEVREADWRITE(I8251_A_TAG, i8251_device, data_r, data_w) - AM_RANGE(0x01, 0x01) AM_DEVREADWRITE(I8251_A_TAG, i8251_device, status_r, control_w) - AM_RANGE(0x02, 0x02) AM_DEVREADWRITE(I8251_B_TAG, i8251_device, data_r, data_w) - AM_RANGE(0x03, 0x03) AM_DEVREADWRITE(I8251_B_TAG, i8251_device, status_r, control_w) - AM_RANGE(0x04, 0x07) AM_DEVREADWRITE(I8255A_TAG, i8255_device, read, write) - AM_RANGE(0x08, 0x08) AM_WRITE(mmu_w) - AM_RANGE(0x09, 0x09) AM_WRITE(prom_toggle_w) - AM_RANGE(0x0a, 0x0a) AM_READ(prom_disable_r) - AM_RANGE(0x0b, 0x0b) AM_READ_PORT("DSW0") AM_WRITE(baud_w) - AM_RANGE(0x0c, 0x0f) AM_DEVREADWRITE(Z80CTC_TAG, z80ctc_device, read, write) - AM_RANGE(0xf8, 0xfb) AM_READWRITE(fdc_r, fdc_w) - AM_RANGE(0xfc, 0xfc) AM_READWRITE(fdc_wait_r, fdc_dcont_w) - AM_RANGE(0xfd, 0xfd) AM_WRITE(fdc_dsel_w) -ADDRESS_MAP_END - -/* Input Ports */ - -static INPUT_PORTS_START( xor100 ) - - PORT_START("DSW0") - PORT_DIPNAME( 0x0f, 0x05, "Serial Port A" ) - PORT_DIPSETTING( 0x00, "50 baud" ) - PORT_DIPSETTING( 0x01, "75 baud" ) - PORT_DIPSETTING( 0x02, "110 baud" ) - PORT_DIPSETTING( 0x03, "134.5 baud" ) - PORT_DIPSETTING( 0x04, "150 baud" ) - PORT_DIPSETTING( 0x05, "300 baud" ) - PORT_DIPSETTING( 0x06, "600 baud" ) - PORT_DIPSETTING( 0x07, "1200 baud" ) - PORT_DIPSETTING( 0x08, "1800 baud" ) - PORT_DIPSETTING( 0x09, "2000 baud" ) - PORT_DIPSETTING( 0x0a, "2400 baud" ) - PORT_DIPSETTING( 0x0b, "3600 baud" ) - PORT_DIPSETTING( 0x0c, "4800 baud" ) - PORT_DIPSETTING( 0x0d, "7200 baud" ) - PORT_DIPSETTING( 0x0e, "9600 baud" ) - PORT_DIPSETTING( 0x0f, "19200 baud" ) - PORT_DIPNAME( 0xf0, 0xe0, "Serial Port B" ) - PORT_DIPSETTING( 0x00, "50 baud" ) - PORT_DIPSETTING( 0x10, "75 baud" ) - PORT_DIPSETTING( 0x20, "110 baud" ) - PORT_DIPSETTING( 0x30, "134.5 baud" ) - PORT_DIPSETTING( 0x40, "150 baud" ) - PORT_DIPSETTING( 0x50, "300 baud" ) - PORT_DIPSETTING( 0x60, "600 baud" ) - PORT_DIPSETTING( 0x70, "1200 baud" ) - PORT_DIPSETTING( 0x80, "1800 baud" ) - PORT_DIPSETTING( 0x90, "2000 baud" ) - PORT_DIPSETTING( 0xa0, "2400 baud" ) - PORT_DIPSETTING( 0xb0, "3600 baud" ) - PORT_DIPSETTING( 0xc0, "4800 baud" ) - PORT_DIPSETTING( 0xd0, "7200 baud" ) - PORT_DIPSETTING( 0xe0, "9600 baud" ) - PORT_DIPSETTING( 0xf0, "19200 baud" ) - - PORT_START("J1") - PORT_CONFNAME( 0x01, 0x01, "J1 Wait State") - PORT_CONFSETTING( 0x00, "No Wait States" ) - PORT_CONFSETTING( 0x01, "1 M1 Wait State" ) - - PORT_START("J2") - PORT_CONFNAME( 0x01, 0x01, "J2 CPU Speed") - PORT_CONFSETTING( 0x00, "2 MHz" ) - PORT_CONFSETTING( 0x01, "4 MHz" ) - - PORT_START("J3") - PORT_CONFNAME( 0x01, 0x00, "J3") - PORT_CONFSETTING( 0x00, "" ) - PORT_CONFSETTING( 0x01, "" ) - - PORT_START("J4-J5") - PORT_CONFNAME( 0x01, 0x01, "J4/J5 EPROM Type") - PORT_CONFSETTING( 0x00, "2708" ) - PORT_CONFSETTING( 0x01, "2716" ) - - PORT_START("J6") - PORT_CONFNAME( 0x01, 0x01, "J6 EPROM") - PORT_CONFSETTING( 0x00, "Disabled" ) - PORT_CONFSETTING( 0x01, "Enabled" ) - - PORT_START("J7") - PORT_CONFNAME( 0x01, 0x00, "J7 I/O Port Addresses") - PORT_CONFSETTING( 0x00, "00-0F" ) - PORT_CONFSETTING( 0x01, "10-1F" ) - - PORT_START("J8") - PORT_CONFNAME( 0x01, 0x00, "J8") - PORT_CONFSETTING( 0x00, "" ) - PORT_CONFSETTING( 0x01, "" ) - - PORT_START("J9") - PORT_CONFNAME( 0x01, 0x01, "J9 Power On RAM") - PORT_CONFSETTING( 0x00, "Enabled" ) - PORT_CONFSETTING( 0x01, "Disabled" ) -INPUT_PORTS_END - -/* COM5016 Interface */ - -WRITE_LINE_MEMBER( xor100_state::com5016_fr_w ) -{ - m_uart_a->write_txc(state); - m_uart_a->write_rxc(state); -} - -WRITE_LINE_MEMBER( xor100_state::com5016_ft_w ) -{ - m_uart_b->write_txc(state); - m_uart_b->write_rxc(state); -} - -/* Printer 8255A Interface */ - -WRITE_LINE_MEMBER( xor100_state::write_centronics_busy ) -{ - m_centronics_busy = state; -} - -WRITE_LINE_MEMBER( xor100_state::write_centronics_select ) -{ - m_centronics_select = state; -} - -READ8_MEMBER(xor100_state::i8255_pc_r) -{ - /* - - bit description - - PC0 - PC1 - PC2 - PC3 - PC4 ON LINE - PC5 BUSY - PC6 _ACK - PC7 - - */ - - UINT8 data = 0; - - /* on line */ - data |= m_centronics_select << 4; - - /* busy */ - data |= m_centronics_busy << 5; - - return data; -} - -/* Z80-CTC Interface */ - -WRITE_LINE_MEMBER( xor100_state::ctc_z0_w ) -{ -} - -WRITE_LINE_MEMBER( xor100_state::ctc_z1_w ) -{ -} - -WRITE_LINE_MEMBER( xor100_state::ctc_z2_w ) -{ -} - -/* WD1795-02 Interface */ - -static SLOT_INTERFACE_START( xor100_floppies ) - SLOT_INTERFACE( "8ssdd", FLOPPY_8_SSDD ) // Shugart SA-100 -SLOT_INTERFACE_END - -void xor100_state::fdc_intrq_w(bool state) -{ - m_fdc_irq = state; - m_ctc->trg0(state); - - if (state) - { - fatalerror("Z80 WAIT not supported by MAME core\n"); - m_maincpu->set_input_line(Z80_INPUT_LINE_WAIT, ASSERT_LINE); - } -} - -void xor100_state::fdc_drq_w(bool state) -{ - m_fdc_drq = state; - - if (state) - { - fatalerror("Z80 WAIT not supported by MAME core\n"); - m_maincpu->set_input_line(Z80_INPUT_LINE_WAIT, ASSERT_LINE); - } -} - - -static DEVICE_INPUT_DEFAULTS_START( terminal ) - DEVICE_INPUT_DEFAULTS( "RS232_TXBAUD", 0xff, RS232_BAUD_9600 ) - DEVICE_INPUT_DEFAULTS( "RS232_RXBAUD", 0xff, RS232_BAUD_9600 ) - DEVICE_INPUT_DEFAULTS( "RS232_STARTBITS", 0xff, RS232_STARTBITS_1 ) - DEVICE_INPUT_DEFAULTS( "RS232_DATABITS", 0xff, RS232_DATABITS_8 ) - DEVICE_INPUT_DEFAULTS( "RS232_PARITY", 0xff, RS232_PARITY_NONE ) - DEVICE_INPUT_DEFAULTS( "RS232_STOPBITS", 0xff, RS232_STOPBITS_1 ) -DEVICE_INPUT_DEFAULTS_END - -static SLOT_INTERFACE_START( xor100_s100_cards ) -SLOT_INTERFACE_END - -/* Machine Initialization */ - -void xor100_state::machine_start() -{ - int banks = m_ram->size() / 0x10000; - UINT8 *ram = m_ram->pointer(); - UINT8 *rom = m_rom->base(); - - /* setup memory banking */ - membank("bank1")->configure_entries(1, banks, ram, 0x10000); - membank("bank2")->configure_entry(0, rom); - membank("bank2")->configure_entries(1, banks, ram, 0x10000); - membank("bank3")->configure_entry(0, rom); - membank("bank3")->configure_entries(1, banks, ram + 0xf800, 0x10000); - - machine().save().register_postload(save_prepost_delegate(FUNC(xor100_state::post_load), this)); - - /* register for state saving */ - save_item(NAME(m_mode)); - save_item(NAME(m_bank)); - save_item(NAME(m_fdc_irq)); - save_item(NAME(m_fdc_drq)); - save_item(NAME(m_fdc_dden)); - save_item(NAME(m_centronics_busy)); - save_item(NAME(m_centronics_select)); -} - -void xor100_state::machine_reset() -{ - m_mode = EPROM_0000; - - bankswitch(); -} - -void xor100_state::post_load() -{ - bankswitch(); -} - -/* Machine Driver */ - -static MACHINE_CONFIG_START( xor100, xor100_state ) - /* basic machine hardware */ - MCFG_CPU_ADD(Z80_TAG, Z80, XTAL_8MHz/2) - MCFG_CPU_PROGRAM_MAP(xor100_mem) - MCFG_CPU_IO_MAP(xor100_io) - - /* devices */ - MCFG_DEVICE_ADD(I8251_A_TAG, I8251, 0/*XTAL_8MHz/2,*/) - MCFG_I8251_TXD_HANDLER(DEVWRITELINE(RS232_A_TAG, rs232_port_device, write_txd)) - MCFG_I8251_DTR_HANDLER(DEVWRITELINE(RS232_A_TAG, rs232_port_device, write_dtr)) - MCFG_I8251_RTS_HANDLER(DEVWRITELINE(RS232_A_TAG, rs232_port_device, write_rts)) - - MCFG_RS232_PORT_ADD(RS232_A_TAG, default_rs232_devices, NULL) - MCFG_RS232_RXD_HANDLER(DEVWRITELINE(I8251_A_TAG, i8251_device, write_rxd)) - MCFG_RS232_DSR_HANDLER(DEVWRITELINE(I8251_A_TAG, i8251_device, write_dsr)) - - MCFG_DEVICE_ADD(I8251_B_TAG, I8251, 0/*XTAL_8MHz/2,*/) - MCFG_I8251_TXD_HANDLER(DEVWRITELINE(RS232_B_TAG, rs232_port_device, write_txd)) - MCFG_I8251_DTR_HANDLER(DEVWRITELINE(RS232_B_TAG, rs232_port_device, write_dtr)) - MCFG_I8251_RTS_HANDLER(DEVWRITELINE(RS232_B_TAG, rs232_port_device, write_rts)) - - MCFG_RS232_PORT_ADD(RS232_B_TAG, default_rs232_devices, "terminal") - MCFG_RS232_RXD_HANDLER(DEVWRITELINE(I8251_B_TAG, i8251_device, write_rxd)) - MCFG_RS232_DSR_HANDLER(DEVWRITELINE(I8251_B_TAG, i8251_device, write_dsr)) - MCFG_DEVICE_CARD_DEVICE_INPUT_DEFAULTS("terminal", terminal) - - MCFG_DEVICE_ADD(COM5016_TAG, COM8116, XTAL_5_0688MHz) - MCFG_COM8116_FR_HANDLER(WRITELINE(xor100_state, com5016_fr_w)) - MCFG_COM8116_FT_HANDLER(WRITELINE(xor100_state, com5016_ft_w)) - - MCFG_DEVICE_ADD(I8255A_TAG, I8255A, 0) - MCFG_I8255_OUT_PORTA_CB(DEVWRITE8("cent_data_out", output_latch_device, write)) - MCFG_I8255_OUT_PORTB_CB(DEVWRITELINE(CENTRONICS_TAG, centronics_device, write_strobe)) - MCFG_I8255_IN_PORTC_CB(READ8(xor100_state, i8255_pc_r)) - - MCFG_DEVICE_ADD(Z80CTC_TAG, Z80CTC, XTAL_8MHz/2) - MCFG_Z80CTC_INTR_CB(INPUTLINE(Z80_TAG, INPUT_LINE_IRQ0)) - MCFG_Z80CTC_ZC0_CB(WRITELINE(xor100_state, ctc_z0_w)) - MCFG_Z80CTC_ZC1_CB(WRITELINE(xor100_state, ctc_z1_w)) - MCFG_Z80CTC_ZC2_CB(WRITELINE(xor100_state, ctc_z2_w)) - - MCFG_FD1795_ADD(WD1795_TAG, XTAL_8MHz/4) - MCFG_FLOPPY_DRIVE_ADD(WD1795_TAG":0", xor100_floppies, "8ssdd", floppy_image_device::default_floppy_formats) - MCFG_FLOPPY_DRIVE_ADD(WD1795_TAG":1", xor100_floppies, "8ssdd", floppy_image_device::default_floppy_formats) - MCFG_FLOPPY_DRIVE_ADD(WD1795_TAG":2", xor100_floppies, NULL, floppy_image_device::default_floppy_formats) - MCFG_FLOPPY_DRIVE_ADD(WD1795_TAG":3", xor100_floppies, NULL, floppy_image_device::default_floppy_formats) - - MCFG_CENTRONICS_ADD(CENTRONICS_TAG, centronics_devices, "printer") - MCFG_CENTRONICS_ACK_HANDLER(DEVWRITELINE(I8255A_TAG, i8255_device, pc4_w)) - MCFG_CENTRONICS_BUSY_HANDLER(WRITELINE(xor100_state, write_centronics_busy)) - MCFG_CENTRONICS_SELECT_HANDLER(WRITELINE(xor100_state, write_centronics_select)) - - MCFG_CENTRONICS_OUTPUT_LATCH_ADD("cent_data_out", "centronics") - - // S-100 - MCFG_S100_BUS_ADD() - MCFG_S100_RDY_CALLBACK(INPUTLINE(Z80_TAG, Z80_INPUT_LINE_WAIT)) - MCFG_S100_SLOT_ADD("s100_1", xor100_s100_cards, NULL) - MCFG_S100_SLOT_ADD("s100_2", xor100_s100_cards, NULL) - MCFG_S100_SLOT_ADD("s100_3", xor100_s100_cards, NULL) - MCFG_S100_SLOT_ADD("s100_4", xor100_s100_cards, NULL) - MCFG_S100_SLOT_ADD("s100_5", xor100_s100_cards, NULL) - MCFG_S100_SLOT_ADD("s100_6", xor100_s100_cards, NULL) - MCFG_S100_SLOT_ADD("s100_7", xor100_s100_cards, NULL) - MCFG_S100_SLOT_ADD("s100_8", xor100_s100_cards, NULL) - MCFG_S100_SLOT_ADD("s100_9", xor100_s100_cards, NULL) - MCFG_S100_SLOT_ADD("s100_10", xor100_s100_cards, NULL) - - /* internal ram */ - MCFG_RAM_ADD(RAM_TAG) - MCFG_RAM_DEFAULT_SIZE("64K") - MCFG_RAM_EXTRA_OPTIONS("128K,192K,256K,320K,384K,448K,512K") -MACHINE_CONFIG_END - -/* ROMs */ - -ROM_START( xor100 ) - ROM_REGION( 0x800, Z80_TAG, 0 ) - ROM_SYSTEM_BIOS( 0, "v185", "v1.85" ) - ROMX_LOAD( "xp 185.8b", 0x000, 0x800, CRC(0d0bda8d) SHA1(11c83f7cd7e6a570641b44a2f2cc5737a7dd8ae3), ROM_BIOS(1) ) -ROM_END - -/* System Drivers */ - -/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ -COMP( 1980, xor100, 0, 0, xor100, xor100, driver_device, 0, "Xor Data Science", "XOR S-100-12", MACHINE_SUPPORTS_SAVE | MACHINE_NO_SOUND_HW) |