diff options
Diffstat (limited to 'src/mame/drivers/ob68k1a.cpp')
-rw-r--r-- | src/mame/drivers/ob68k1a.cpp | 257 |
1 files changed, 0 insertions, 257 deletions
diff --git a/src/mame/drivers/ob68k1a.cpp b/src/mame/drivers/ob68k1a.cpp deleted file mode 100644 index 4451098abec..00000000000 --- a/src/mame/drivers/ob68k1a.cpp +++ /dev/null @@ -1,257 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Curt Coder -/* - -Omnibyte OB68K1A - -PCB Layout ----------- - -REV-B - -|-----------------------------------------------------------| -| 555 CN3 CN4 CN5 8116 SW5 10MHz | -| 5.0688MHz | -| PIA PIA | -| ACIA ROM1 ROM0 | -| ACIA PTM ROM3 ROM2 | -| SW1 ROM5 ROM4 | -| CPU | -| SW2 4164 4164 4164 4164 | -| 4164 4164 4164 4164 | -| SW3 4164 4164 4164 4164 | -| 555 4164 4164 4164 4164 | -| SW4 8409 | -|-|-------------CN1----------------|----|-------CN2-------|-| - |--------------------------------| |-----------------| - -Notes: - Relevant IC's shown. - - CPU - Motorola MC68000L10 - PIA - Motorola MC6821P - ACIA - Motorola MC6850P - PTM - Motorola MC6840P - 8116 - SMC COM8116 - 8409 - National Semiconductor DP8409N DRAM Controller - 4164 - Fujitsu MB8264A-12 64Kx1 RAM - 555 - NE555N - SW1 - RAM address DIP8 - SW2 - I/O address DIP8 - SW3 - ROM address DIP8 - SW4 - external RAM access address DIP8 - SW5 - push button - CN1 - 2x43 PCB edge, IEEE 796 (Multibus) - CN2 - 2x30 PCB edge, IEEE 796 (Multibus) - CN3 - 2x25 header, ACIA 0 - CN4 - 2x25 header, ACIA 1 - CN5 - 2x50 header, PIA - -*/ - -/* - - TODO: - - - interrupts - - configuration switches - - PIA odd/even byte access - -*/ - - -#include "emu.h" -#include "includes/ob68k1a.h" - - - -//************************************************************************** -// READ/WRITE HANDLERS -//************************************************************************** - -//------------------------------------------------- -// pia_r - trampoline for PIA odd/even access -//------------------------------------------------- - -READ8_MEMBER( ob68k1a_state::pia_r ) -{ - if (offset) { - return m_pia1->read(0); - } else { - return m_pia0->read(0); - } -} - - -//------------------------------------------------- -// pia_w - trampoline for PIA odd/even access -//------------------------------------------------- - -WRITE8_MEMBER( ob68k1a_state::pia_w ) -{ - if (offset) { - m_pia1->write(0,data); - } else { - m_pia0->write(0,data); - } -} - - - -//************************************************************************** -// ADDRESS MAPS -//************************************************************************** - -//------------------------------------------------- -// ADDRESS_MAP( ob68k1a_mem ) -//------------------------------------------------- - -void ob68k1a_state::ob68k1a_mem(address_map &map) -{ - map.unmap_value_high(); - map(0x000000, 0x01ffff).ram(); - map(0xfe0000, 0xfeffff).rom().region(MC68000L10_TAG, 0); - map(0xffff00, 0xffff03).rw(m_acia0, FUNC(acia6850_device::read), FUNC(acia6850_device::write)).umask16(0x00ff); - map(0xffff10, 0xffff10).w(COM8116_TAG, FUNC(com8116_device::str_stt_w)); - map(0xffff20, 0xffff23).rw(m_acia1, FUNC(acia6850_device::read), FUNC(acia6850_device::write)).umask16(0x00ff); -// map(0xffff40, 0xffff47).rw(MC6821_0_TAG, FUNC(pia6821_device::read), FUNC(pia6821_device::write)).umask16(0x00ff); -// map(0xffff40, 0xffff47).rw(MC6821_1_TAG, FUNC(pia6821_device::read), FUNC(pia6821_device::write)).umask16(0xff00); - map(0xffff40, 0xffff47).rw(FUNC(ob68k1a_state::pia_r), FUNC(ob68k1a_state::pia_w)); - map(0xffff60, 0xffff6f).rw(MC6840_TAG, FUNC(ptm6840_device::read), FUNC(ptm6840_device::write)).umask16(0x00ff); -} - - - -//************************************************************************** -// INPUT PORTS -//************************************************************************** - -//------------------------------------------------- -// INPUT_PORTS( ob68k1a ) -//------------------------------------------------- - -INPUT_PORTS_START( ob68k1a ) -INPUT_PORTS_END - - - -//************************************************************************** -// MACHINE INITIALIZATION -//************************************************************************** - -//------------------------------------------------- -// MACHINE_START( ob68k1a ) -//------------------------------------------------- - -void ob68k1a_state::machine_start() -{ - address_space &program = m_maincpu->space(AS_PROGRAM); - - // configure RAM - switch (m_ram->size()) - { - case 32*1024: - program.unmap_readwrite(0x008000, 0x01ffff); - break; - } -} - - -void ob68k1a_state::machine_reset() -{ - // initialize COM8116 - m_dbrg->stt_w(0x0e); - m_dbrg->str_w(0x0e); - - // set reset vector - void *ram = m_maincpu->space(AS_PROGRAM).get_write_ptr(0); - uint8_t *rom = memregion(MC68000L10_TAG)->base(); - - memcpy(ram, rom, 8); -} - - - -//************************************************************************** -// MACHINE CONFIGURATION -//************************************************************************** - -//------------------------------------------------- -// machine_config( ob68k1a ) -//------------------------------------------------- - -void ob68k1a_state::ob68k1a(machine_config &config) -{ - // basic machine hardware - M68000(config, m_maincpu, 10_MHz_XTAL); - m_maincpu->set_addrmap(AS_PROGRAM, &ob68k1a_state::ob68k1a_mem); - - // devices - PIA6821(config, m_pia0, 0); - PIA6821(config, m_pia1, 0); - PTM6840(config, MC6840_TAG, 10_MHz_XTAL/10).set_external_clocks(0, 0, 0); - - ACIA6850(config, m_acia0, 0); - m_acia0->txd_handler().set(m_rs232a, FUNC(rs232_port_device::write_txd)); - m_acia0->rts_handler().set(m_rs232a, FUNC(rs232_port_device::write_rts)); - - RS232_PORT(config, m_rs232a, default_rs232_devices, "terminal"); - m_rs232a->rxd_handler().set(m_acia0, FUNC(acia6850_device::write_rxd)); - m_rs232a->dcd_handler().set(m_acia0, FUNC(acia6850_device::write_dcd)); - m_rs232a->cts_handler().set(m_acia0, FUNC(acia6850_device::write_cts)); - - ACIA6850(config, m_acia1, 0); - m_acia1->txd_handler().set(m_rs232b, FUNC(rs232_port_device::write_txd)); - m_acia1->rts_handler().set(m_rs232b, FUNC(rs232_port_device::write_rts)); - - RS232_PORT(config, m_rs232b, default_rs232_devices, nullptr); - m_rs232b->rxd_handler().set(m_acia1, FUNC(acia6850_device::write_rxd)); - m_rs232b->dcd_handler().set(m_acia1, FUNC(acia6850_device::write_dcd)); - m_rs232b->cts_handler().set(m_acia1, FUNC(acia6850_device::write_cts)); - - COM8116(config, m_dbrg, 5.0688_MHz_XTAL); - m_dbrg->fr_handler().set(m_acia0, FUNC(acia6850_device::write_txc)); - m_dbrg->fr_handler().append(m_acia0, FUNC(acia6850_device::write_rxc)); - m_dbrg->ft_handler().set(m_acia1, FUNC(acia6850_device::write_txc)); - m_dbrg->ft_handler().append(m_acia1, FUNC(acia6850_device::write_rxc)); - - // internal ram - RAM(config, m_ram, 0); - m_ram->set_default_size("32K"); - m_ram->set_extra_options("128K"); -} - - - -//************************************************************************** -// ROMS -//************************************************************************** - -//------------------------------------------------- -// ROM( ob68k1a ) -//------------------------------------------------- - -ROM_START( ob68k1a ) - ROM_REGION16_BE( 0x10000, MC68000L10_TAG, 0 ) - ROM_LOAD16_BYTE( "macsbug.u60", 0x0000, 0x2000, CRC(7c8905ff) SHA1(eba6c70f6b5b40d60e2885c2bd33dd93ec2aae48) ) - ROM_LOAD16_BYTE( "macsbug.u61", 0x0001, 0x2000, CRC(b5069252) SHA1(b310465d8ece944bd694cc9726d03fed0f4b2c0f) ) - ROM_LOAD16_BYTE( "idris_boot.u62", 0x4000, 0x2000, CRC(091e900e) SHA1(ea0c9f3ad5179eab2e743459c8afb707c059f0e2) ) - ROM_LOAD16_BYTE( "idris_boot.u63", 0x4001, 0x2000, CRC(a132259f) SHA1(34216bf1d22ff0f0af29699a1e4e0e57631f775d) ) - - ROM_REGION( 0x100, "plds", 0 ) - ROM_LOAD( "1.0.u18", 0x000, 0x100, NO_DUMP ) // PAL16L8 - ROM_LOAD( "2.5.u20", 0x000, 0x100, NO_DUMP ) // PAL16L8 - ROM_LOAD( "3.2.u21", 0x000, 0x100, NO_DUMP ) // PAL16R4 - ROM_LOAD( "4.3.u49", 0x000, 0x100, NO_DUMP ) // PAL16R4 - ROM_LOAD( "5.1.u51", 0x000, 0x100, NO_DUMP ) // PAL16L8 - ROM_LOAD( "6.2.u55", 0x000, 0x100, NO_DUMP ) // PAL16L8 -ROM_END - - - -//************************************************************************** -// SYSTEM DRIVERS -//************************************************************************** - -// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS -COMP( 1982, ob68k1a, 0, 0, ob68k1a, ob68k1a, ob68k1a_state, empty_init, "Omnibyte", "OB68K1A Single Board Computer", MACHINE_NO_SOUND_HW ) |