diff options
author | cracyc <cracyc@users.noreply.github.com> | 2016-04-30 15:20:02 -0500 |
---|---|---|
committer | cracyc <cracyc@users.noreply.github.com> | 2016-04-30 15:20:02 -0500 |
commit | a717ba24ede14435f1c4f0dd15f76b2812db27b7 (patch) | |
tree | b696675fae507c274b22b754c2bd2fe6a61742a4 /src/mame/drivers | |
parent | cc961900ace1cb7cc317c363ebefa605c16f634a (diff) |
new not working altos486 [Carl, Al Kossow]
Diffstat (limited to 'src/mame/drivers')
-rw-r--r-- | src/mame/drivers/altos486.cpp | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/src/mame/drivers/altos486.cpp b/src/mame/drivers/altos486.cpp new file mode 100644 index 00000000000..d9b4aa81a6e --- /dev/null +++ b/src/mame/drivers/altos486.cpp @@ -0,0 +1,223 @@ +// License: BSD-3-Clause +// copyright-holders:Carl + +// Altos 486, very incomplete + +#include "emu.h" +#include "cpu/i86/i186.h" +#include "cpu/z80/z80.h" +#include "machine/i8255.h" +#include "machine/pic8259.h" +#include "machine/z80dart.h" +#include "machine/pit8253.h" +#include "machine/upd765.h" +#include "machine/i8255.h" +#include "bus/rs232/rs232.h" + +class altos486_state : public driver_device +{ +public: + altos486_state(const machine_config &mconfig, device_type type, const char *tag) : + driver_device(mconfig, type, tag), + m_maincpu(*this, "maincpu"), + m_ram(*this, "main_ram"), + m_rom(*this, "bios") + { } + + required_device<i80186_cpu_device> m_maincpu; + required_shared_ptr<UINT16> m_ram; + required_memory_region m_rom; + + DECLARE_READ8_MEMBER(read_rmx_ack); + + DECLARE_READ16_MEMBER(mmu_ram_r); + DECLARE_READ16_MEMBER(mmu_io_r); + DECLARE_WRITE16_MEMBER(mmu_ram_w); + DECLARE_WRITE16_MEMBER(mmu_io_w); + DECLARE_FLOPPY_FORMATS(floppy_formats); + + bool m_sys_mode; + UINT8 m_prot[256]; + UINT16 m_viol[16]; +}; + +READ8_MEMBER(altos486_state::read_rmx_ack) +{ + if(offset == 4) + return m_maincpu->int_callback(*this, 0); + + return 0; +} + +READ16_MEMBER(altos486_state::mmu_ram_r) +{ + if(offset < 0x7e000) + return m_ram[offset]; // TODO + else + return m_rom->u16(offset - 0x7e000); +} + +READ16_MEMBER(altos486_state::mmu_io_r) +{ + if(!m_sys_mode) + { + m_maincpu->set_input_line(INPUT_LINE_NMI, ASSERT_LINE); + return 0; + } + if(offset < 0x100) + return m_prot[offset]; + return 0; // TODO +} + +WRITE16_MEMBER(altos486_state::mmu_ram_w) +{ + //UINT16 entry = m_prot[offset >> 11]; + //if(!m_sys_mode) +} + +WRITE16_MEMBER(altos486_state::mmu_io_w) +{ + if(!m_sys_mode) + { + m_maincpu->set_input_line(INPUT_LINE_NMI, ASSERT_LINE); + return; + } + if(offset < 0x100) + { + if(mem_mask != 0xff00) + m_prot[offset] = data & 0xf; + } +} + +FLOPPY_FORMATS_MEMBER( altos486_state::floppy_formats ) + FLOPPY_TD0_FORMAT +FLOPPY_FORMATS_END + +static SLOT_INTERFACE_START( altos486_floppies ) + SLOT_INTERFACE( "525qd", FLOPPY_525_QD ) +SLOT_INTERFACE_END + +static ADDRESS_MAP_START(altos486_mem, AS_PROGRAM, 16, altos486_state) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x00000, 0xfffff) AM_READWRITE(mmu_ram_r, mmu_ram_w) AM_SHARE("main_ram") +ADDRESS_MAP_END + +static ADDRESS_MAP_START(altos486_io, AS_IO, 16, altos486_state) + AM_RANGE(0x0000, 0xffff) AM_READWRITE(mmu_io_r, mmu_io_w) +ADDRESS_MAP_END + +static ADDRESS_MAP_START(altos486_z80_mem, AS_PROGRAM, 8, altos486_state) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x0000, 0x0fff) AM_ROM AM_REGION("iocpu", 0) + AM_RANGE(0x2000, 0x27ff) AM_RAM + //AM_RANGE(0x8000, 0xffff) AM_READWRITE(z80_shared_r, z80_shared_w) +ADDRESS_MAP_END + +static ADDRESS_MAP_START(altos486_z80_io, AS_IO, 8, altos486_state) + //AM_RANGE(0x00, 0x03) AM_DEVREADWRITE("sio0", z80sio0_device, read, write) + //AM_RANGE(0x04, 0x07) AM_DEVREADWRITE("sio1", z80sio0_device, read, write) + //AM_RANGE(0x08, 0x0b) AM_DEVREADWRITE("sio2", z80sio0_device, read, write) +ADDRESS_MAP_END + +static MACHINE_CONFIG_START( altos486, altos486_state ) + MCFG_CPU_ADD("maincpu", I80186, XTAL_8MHz) + MCFG_CPU_PROGRAM_MAP(altos486_mem) + MCFG_CPU_IO_MAP(altos486_io) + MCFG_CPU_IRQ_ACKNOWLEDGE_DEVICE("pic8259", pic8259_device, inta_cb) // yes, really + + MCFG_CPU_ADD("iocpu", Z80, XTAL_8MHz / 2) + MCFG_CPU_PROGRAM_MAP(altos486_z80_mem) + MCFG_CPU_IO_MAP(altos486_z80_io) + + MCFG_PIC8259_ADD("pic8259", DEVWRITELINE("maincpu", i80186_cpu_device, int0_w), VCC, READ8(altos486_state, read_rmx_ack)) + MCFG_DEVICE_ADD("ppi8255", I8255, 0) + + MCFG_UPD765A_ADD("fdc", false, false) + MCFG_FLOPPY_DRIVE_ADD("fdc:0", altos486_floppies, "525qd", altos486_state::floppy_formats) + MCFG_SLOT_FIXED(true) + + MCFG_Z80SIO0_ADD("sio0", 4000000, 0, 0, 0, 0) + MCFG_Z80DART_OUT_TXDA_CB(DEVWRITELINE("rs232a", rs232_port_device, write_txd)) + MCFG_Z80DART_OUT_DTRA_CB(DEVWRITELINE("rs232a", rs232_port_device, write_dtr)) + MCFG_Z80DART_OUT_RTSA_CB(DEVWRITELINE("rs232a", rs232_port_device, write_rts)) + MCFG_Z80DART_OUT_TXDB_CB(DEVWRITELINE("rs232b", rs232_port_device, write_txd)) + MCFG_Z80DART_OUT_DTRB_CB(DEVWRITELINE("rs232b", rs232_port_device, write_dtr)) + MCFG_Z80DART_OUT_RTSB_CB(DEVWRITELINE("rs232b", rs232_port_device, write_rts)) + //MCFG_Z80DART_OUT_INT_CB(WRITELINE(altos486_state, sio_interrupt)) + MCFG_Z80SIO0_ADD("sio1", 4000000, 0, 0, 0, 0) + MCFG_Z80DART_OUT_TXDA_CB(DEVWRITELINE("rs232c", rs232_port_device, write_txd)) + MCFG_Z80DART_OUT_DTRA_CB(DEVWRITELINE("rs232c", rs232_port_device, write_dtr)) + MCFG_Z80DART_OUT_RTSA_CB(DEVWRITELINE("rs232c", rs232_port_device, write_rts)) + MCFG_Z80DART_OUT_TXDB_CB(DEVWRITELINE("rs232d", rs232_port_device, write_txd)) + MCFG_Z80DART_OUT_DTRB_CB(DEVWRITELINE("rs232d", rs232_port_device, write_dtr)) + MCFG_Z80DART_OUT_RTSB_CB(DEVWRITELINE("rs232d", rs232_port_device, write_rts)) + //MCFG_Z80DART_OUT_INT_CB(WRITELINE(altos486_state, sio_interrupt)) + MCFG_Z80SIO0_ADD("sio2", 4000000, 0, 0, 0, 0) + MCFG_Z80DART_OUT_TXDA_CB(DEVWRITELINE("rs232_lp", rs232_port_device, write_txd)) + MCFG_Z80DART_OUT_DTRA_CB(DEVWRITELINE("rs232_lp", rs232_port_device, write_dtr)) + MCFG_Z80DART_OUT_RTSA_CB(DEVWRITELINE("rs232_lp", rs232_port_device, write_rts)) + //MCFG_Z80DART_OUT_INT_CB(WRITELINE(altos486_state, sio_interrupt)) + + MCFG_I8274_ADD("i8274", XTAL_16MHz/4, 0, 0, 0, 0) + MCFG_Z80DART_OUT_TXDA_CB(DEVWRITELINE("rs422_wn", rs232_port_device, write_txd)) + MCFG_Z80DART_OUT_DTRA_CB(DEVWRITELINE("rs422_wn", rs232_port_device, write_dtr)) + MCFG_Z80DART_OUT_RTSA_CB(DEVWRITELINE("rs422_wn", rs232_port_device, write_rts)) + //MCFG_Z80DART_OUT_INT_CB(WRITELINE(altos486_state, sio_interrupt)) + + MCFG_RS232_PORT_ADD("rs232a", default_rs232_devices, "terminal") + MCFG_RS232_RXD_HANDLER(DEVWRITELINE("sio0", z80dart_device, rxa_w)) + MCFG_RS232_DCD_HANDLER(DEVWRITELINE("sio0", z80dart_device, dcda_w)) + MCFG_RS232_CTS_HANDLER(DEVWRITELINE("sio0", z80dart_device, ctsa_w)) + //MCFG_DEVICE_CARD_DEVICE_INPUT_DEFAULTS("terminal", altos486_terminal) + + MCFG_RS232_PORT_ADD("rs232b", default_rs232_devices, NULL) + MCFG_RS232_RXD_HANDLER(DEVWRITELINE("sio0", z80dart_device, rxb_w)) + MCFG_RS232_DCD_HANDLER(DEVWRITELINE("sio0", z80dart_device, dcdb_w)) + MCFG_RS232_CTS_HANDLER(DEVWRITELINE("sio0", z80dart_device, ctsb_w)) + + MCFG_RS232_PORT_ADD("rs232c", default_rs232_devices, NULL) + MCFG_RS232_RXD_HANDLER(DEVWRITELINE("sio1", z80dart_device, rxa_w)) + MCFG_RS232_DCD_HANDLER(DEVWRITELINE("sio1", z80dart_device, dcda_w)) + MCFG_RS232_CTS_HANDLER(DEVWRITELINE("sio1", z80dart_device, ctsa_w)) + + MCFG_RS232_PORT_ADD("rs232d", default_rs232_devices, NULL) + MCFG_RS232_RXD_HANDLER(DEVWRITELINE("sio1", z80dart_device, rxb_w)) + MCFG_RS232_DCD_HANDLER(DEVWRITELINE("sio1", z80dart_device, dcdb_w)) + MCFG_RS232_CTS_HANDLER(DEVWRITELINE("sio1", z80dart_device, ctsb_w)) + + MCFG_RS232_PORT_ADD("rs232_lp", default_rs232_devices, NULL) + MCFG_RS232_RXD_HANDLER(DEVWRITELINE("sio2", z80dart_device, rxa_w)) + MCFG_RS232_DCD_HANDLER(DEVWRITELINE("sio2", z80dart_device, dcda_w)) + MCFG_RS232_CTS_HANDLER(DEVWRITELINE("sio2", z80dart_device, ctsa_w)) + + MCFG_RS232_PORT_ADD("rs422_wn", default_rs232_devices, NULL) + MCFG_RS232_RXD_HANDLER(DEVWRITELINE("i8274", z80dart_device, rxa_w)) + MCFG_RS232_DCD_HANDLER(DEVWRITELINE("i8274", z80dart_device, dcda_w)) + MCFG_RS232_CTS_HANDLER(DEVWRITELINE("i8274", z80dart_device, ctsa_w)) + + MCFG_DEVICE_ADD("pit0", PIT8253, 0) + MCFG_PIT8253_CLK0(XTAL_22_1184MHz/18) + MCFG_PIT8253_CLK1(XTAL_22_1184MHz/144) + MCFG_PIT8253_CLK2(XTAL_22_1184MHz/18) + MCFG_DEVICE_ADD("pit1", PIT8253, 0) + MCFG_PIT8253_CLK0(XTAL_22_1184MHz/18) + MCFG_PIT8253_CLK1(XTAL_22_1184MHz/144) + MCFG_PIT8253_CLK2(XTAL_22_1184MHz/18) +MACHINE_CONFIG_END + + +ROM_START( altos486 ) + ROM_REGION( 0x4000, "bios", ROMREGION_ERASEFF ) + ROM_SYSTEM_BIOS( 0, "v11", "Altos 486 v1.1") + ROMX_LOAD("16577_lo_v1.1.bin", 0x0000, 0x2000, CRC(65a9db18) SHA1(3ac2b87f1fc0b28ed4907c9b4091aaa170609674), ROM_SKIP(1) | ROM_BIOS(1)) + ROMX_LOAD("16576_hi_v1.1.bin", 0x0001, 0x2000, CRC(cea4cd8d) SHA1(f9f49828bd5e3281bd7cc34d4460ca1b677530b0), ROM_SKIP(1) | ROM_BIOS(1)) + ROM_SYSTEM_BIOS( 1, "v12", "Altos 486 v1.2") + ROMX_LOAD("16577-003_4D_v1.2.bin", 0x0000, 0x2000, CRC(e2ac806b) SHA1(9b358246e26b3e85a6dff418899a180370884537), ROM_SKIP(1) | ROM_BIOS(2)) + ROMX_LOAD("16576-003_3D_v1.2.bin", 0x0001, 0x2000, CRC(912f4c12) SHA1(df5088e8610513b577926b0c752e3b54bc880167), ROM_SKIP(1) | ROM_BIOS(2)) + + ROM_REGION( 0x1000, "iocpu", 0 ) + ROM_LOAD("16019_z80.bin", 0x0000, 0x1000, CRC(68b1b2e1) SHA1(5d83609a465029212d5e3f72ac9c520b3dbed838)) +ROM_END + +COMP( 1984, altos486, 0, 0, altos486, 0, driver_device, 0, "Altos Computer Systems", "Altos 486", MACHINE_NOT_WORKING | MACHINE_NO_SOUND) + |