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author | 2015-01-25 22:12:59 +0100 | |
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committer | 2015-01-25 22:12:59 +0100 | |
commit | 41408bae3b2d761ea53a0f9f826855d4c2542e87 (patch) | |
tree | 8019511b2870a9453789867309fca2980886bcd0 /src/mess/drivers/slicer.c | |
parent | 36c9bba47db88ab3e42e422d26a35de3536d1d76 (diff) | |
parent | 35947ff256bc7e066f8b49ad45c7383b14a9e8ee (diff) |
Merge branch 'master' of https://github.com/mamedev/mame.git
Diffstat (limited to 'src/mess/drivers/slicer.c')
-rw-r--r-- | src/mess/drivers/slicer.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/src/mess/drivers/slicer.c b/src/mess/drivers/slicer.c new file mode 100644 index 00000000000..db0d12cc0ec --- /dev/null +++ b/src/mess/drivers/slicer.c @@ -0,0 +1,140 @@ +// Slicer Computers Slicer 80186 SBC +// The bios makefile refers to a "exe3bin" utility, this can be substituted with FreeDOS exe2bin and the /l=0xf800 option +// which will fixup the relocations + +#include "emu.h" +#include "cpu/i86/i186.h" +#include "machine/wd_fdc.h" +#include "machine/mc68681.h" +#include "bus/rs232/rs232.h" +#include "bus/isa/isa.h" +#include "bus/scsi/scsi.h" + +class slicer_state : public driver_device +{ +public: + slicer_state(const machine_config &mconfig, device_type type, const char *tag) : + driver_device(mconfig, type, tag), + m_fdc(*this, "fdc"), + m_sasi(*this, "sasi") + {} + + required_device<fd1797_t> m_fdc; + required_device<SCSI_PORT_DEVICE> m_sasi; + + DECLARE_WRITE8_MEMBER(sio_out_w); + DECLARE_WRITE8_MEMBER(drive_sel_w); +}; + +WRITE8_MEMBER(slicer_state::sio_out_w) +{ + floppy_image_device *floppy; + int state = (data & 0x80) ? 0 : 1; + char devname[8]; + + for(int i = 0; i < 4; i++) + { + sprintf(devname, "%d", i); + floppy = m_fdc->subdevice<floppy_connector>(devname)->get_device(); + if(floppy) + floppy->mon_w(state); + } +} + +WRITE8_MEMBER(slicer_state::drive_sel_w) +{ + data &= 1; + switch(offset) + { + case 0: + m_sasi->write_sel(data); + break; + case 1: + m_sasi->write_rst(data); + break; + case 7: + m_fdc->dden_w(data); + break; + + default: + { + floppy_image_device *floppy; + char devname[8]; + unsigned int drive = 3 - (offset - 2); + if((drive > 3) || !data) + break; + + sprintf(devname, "%d", drive); + floppy = m_fdc->subdevice<floppy_connector>(devname)->get_device(); + m_fdc->set_floppy(floppy); + break; + } + } +} + +static ADDRESS_MAP_START( slicer_map, AS_PROGRAM, 16, slicer_state ) + AM_RANGE(0x00000, 0x3ffff) AM_RAM // fixed 256k for now + AM_RANGE(0xf8000, 0xfffff) AM_ROM AM_REGION("bios", 0) +ADDRESS_MAP_END + +static ADDRESS_MAP_START( slicer_io, AS_IO, 16, slicer_state ) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x0000, 0x007f) AM_DEVREADWRITE8("fdc", fd1797_t, read, write, 0x00ff) //PCS0 + AM_RANGE(0x0080, 0x00ff) AM_DEVREADWRITE8("sc2681", mc68681_device, read, write, 0x00ff) //PCS1 + AM_RANGE(0x0100, 0x017f) AM_WRITE8(drive_sel_w, 0x00ff) //PCS2 + // TODO: 0x180 sets ack + AM_RANGE(0x0180, 0x0181) AM_DEVREAD8("sasi_data_in", input_buffer_device, read, 0x00ff) AM_DEVWRITE8("sasi_data_out", output_latch_device, write, 0x00ff) //PCS3 + AM_RANGE(0x0180, 0x0181) AM_DEVREAD8("sasi_ctrl_in", input_buffer_device, read, 0xff00) + AM_RANGE(0x0184, 0x0185) AM_DEVREAD8("sasi_data_in", input_buffer_device, read, 0x00ff) AM_DEVWRITE8("sasi_data_out", output_latch_device, write, 0x00ff) + AM_RANGE(0x0184, 0x0185) AM_DEVREAD8("sasi_ctrl_in", input_buffer_device, read, 0xff00) +ADDRESS_MAP_END + +static SLOT_INTERFACE_START( slicer_floppies ) + SLOT_INTERFACE("525dd", FLOPPY_525_DD) + SLOT_INTERFACE("8dsdd", FLOPPY_8_DSDD) +SLOT_INTERFACE_END + +static MACHINE_CONFIG_START( slicer, slicer_state ) + MCFG_CPU_ADD("maincpu", I80186, XTAL_16MHz / 2) + MCFG_CPU_PROGRAM_MAP(slicer_map) + MCFG_CPU_IO_MAP(slicer_io) + + MCFG_MC68681_ADD("sc2681", XTAL_3_6864MHz) + MCFG_MC68681_IRQ_CALLBACK(DEVWRITELINE("maincpu", i80186_cpu_device, int0_w)) + MCFG_MC68681_A_TX_CALLBACK(DEVWRITELINE("rs232_1", rs232_port_device, write_txd)) + MCFG_MC68681_B_TX_CALLBACK(DEVWRITELINE("rs232_2", rs232_port_device, write_txd)) + MCFG_MC68681_OUTPORT_CALLBACK(WRITE8(slicer_state, sio_out_w)) + + MCFG_RS232_PORT_ADD("rs232_1", default_rs232_devices, "terminal") + MCFG_RS232_RXD_HANDLER(DEVWRITELINE("sc2681", mc68681_device, rx_a_w)) + MCFG_RS232_PORT_ADD("rs232_2", default_rs232_devices, NULL) + MCFG_RS232_RXD_HANDLER(DEVWRITELINE("sc2681", mc68681_device, rx_b_w)) + + MCFG_FD1797x_ADD("fdc", XTAL_16MHz/2/8) + MCFG_WD_FDC_INTRQ_CALLBACK(DEVWRITELINE("maincpu", i80186_cpu_device, int1_w)) + MCFG_WD_FDC_DRQ_CALLBACK(DEVWRITELINE("maincpu", i80186_cpu_device, drq0_w)) + MCFG_FLOPPY_DRIVE_ADD("fdc:0", slicer_floppies, "525dd", floppy_image_device::default_floppy_formats) + MCFG_FLOPPY_DRIVE_ADD("fdc:1", slicer_floppies, NULL, floppy_image_device::default_floppy_formats) + MCFG_FLOPPY_DRIVE_ADD("fdc:2", slicer_floppies, NULL, floppy_image_device::default_floppy_formats) + MCFG_FLOPPY_DRIVE_ADD("fdc:3", slicer_floppies, NULL, floppy_image_device::default_floppy_formats) + + MCFG_DEVICE_ADD("sasi", SCSI_PORT, 0) + MCFG_SCSI_DATA_INPUT_BUFFER("sasi_data_in") + MCFG_SCSI_BSY_HANDLER(DEVWRITELINE("sasi_ctrl_in", input_buffer_device, write_bit3)) + MCFG_SCSI_MSG_HANDLER(DEVWRITELINE("sasi_ctrl_in", input_buffer_device, write_bit4)) + MCFG_SCSI_CD_HANDLER(DEVWRITELINE("sasi_ctrl_in", input_buffer_device, write_bit5)) + MCFG_SCSI_REQ_HANDLER(DEVWRITELINE("sasi_ctrl_in", input_buffer_device, write_bit6)) + MCFG_SCSI_IO_HANDLER(DEVWRITELINE("sasi_ctrl_in", input_buffer_device, write_bit7)) + + MCFG_SCSI_OUTPUT_LATCH_ADD("sasi_data_out", "sasi") + MCFG_DEVICE_ADD("sasi_data_in", INPUT_BUFFER, 0) + MCFG_DEVICE_ADD("sasi_ctrl_in", INPUT_BUFFER, 0) +MACHINE_CONFIG_END + +ROM_START( slicer ) + ROM_REGION(0x8001, "bios", 0) + // built from sources, reset.asm adds an extra byte + ROM_LOAD("epbios.bin", 0x0000, 0x8001, CRC(96fe9dd4) SHA1(5fc43454fe7d51f2ae97aef822155dcd28eb7f23)) +ROM_END + +COMP( 1983, slicer, 0, 0, slicer, 0, driver_device, 0, "Slicer Computers", "Slicer", GAME_NOT_WORKING | GAME_NO_SOUND) |