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alphatpc16: scsi commands are sent and received now (nw)

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This commit is contained in:
cracyc 2020-02-22 22:31:27 -06:00
parent f7dbca3527
commit fc998a4312
1 changed files with 26 additions and 8 deletions
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34
src/mame/drivers/alphatpc16.cpp
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@ -38,7 +38,7 @@ Keyboard: ALP: the key marked with a Greek alpha character makes the computer/pr
Graphics options: Standard monitor cassette (Cinch for bw and DIN for SCART/RGB connectors) 40/80x21/25 Graphics options: Standard monitor cassette (Cinch for bw and DIN for SCART/RGB connectors) 40/80x21/25
characters, Full graphics cassette (512x256 pixels, 16 colours, vector graphics, 64K video RAM), characters, Full graphics cassette (512x256 pixels, 16 colours, vector graphics, 64K video RAM),
BTX cassette (compatible with the standard monitor cassette but includes a modem for BTX functionality) BTX cassette (compatible with the standard monitor cassette but includes a modem for BTX functionality)
Floppy: 1 or 2 5.25” DSDD 40 tracks x 5 sectors x 1024 bytes Floppy: 1 or 2 5.25” DSDD 40 tracks x 5 sectors x 1024 bytes, external via SCSI, z80+wd1770+sa455
Connectors: joystick, cassette recorder (600/1200 BD) FSK, printer (recommended: TRD 7020 or Connectors: joystick, cassette recorder (600/1200 BD) FSK, printer (recommended: TRD 7020 or
GABRIELE 9009 typewriter, V24), floppy, module slot GABRIELE 9009 typewriter, V24), floppy, module slot
Options: 2 versions of an autonomous processor PCB (Z8671 based, programmable in TinyBasic Options: 2 versions of an autonomous processor PCB (Z8671 based, programmable in TinyBasic
@ -171,20 +171,25 @@ WRITE8_MEMBER(alphatpc16_state::host_scsi_w)
} }
break; break;
} }
logerror("%s, data %x bsy %d sel %d req %d ack %d cd %d io %d\n", machine().describe_context(), m_data, m_bsy, m_sel, m_req, m_ack, m_cd, m_io);
} }
READ8_MEMBER(alphatpc16_state::host_scsi_r) READ8_MEMBER(alphatpc16_state::host_scsi_r)
{ {
u8 ret = 0;
switch(offset) switch(offset)
{ {
case 0: case 0:
m_ack = false; m_ack = true;
m_req = false; m_req = false;
return m_data; ret = m_data;
logerror("%s, data %x bsy %d sel %d req %d ack %d cd %d io %d\n", machine().describe_context(), m_data, m_bsy, m_sel, m_req, m_ack, m_cd, m_io);
break;
case 1: case 1:
return m_req | (m_bsy << 1) | (m_cd << 3) | (m_io << 5); ret = m_req | (m_bsy << 1) | (m_cd << 3) | (m_io << 5); // bit 2 msg?
break;
} }
return 0; return ret;
} }
WRITE8_MEMBER(alphatpc16_state::flop_scsi_w) WRITE8_MEMBER(alphatpc16_state::flop_scsi_w)
@ -200,21 +205,28 @@ WRITE8_MEMBER(alphatpc16_state::flop_scsi_w)
m_bsy = !BIT(data, 0); m_bsy = !BIT(data, 0);
m_cd = !BIT(data, 2); m_cd = !BIT(data, 2);
m_io = !BIT(data, 3); m_io = !BIT(data, 3);
break;
} }
logerror("%s, data %x bsy %d sel %d req %d ack %d cd %d io %d\n", machine().describe_context(), m_data, m_bsy, m_sel, m_req, m_ack, m_cd, m_io);
} }
READ8_MEMBER(alphatpc16_state::flop_scsi_r) READ8_MEMBER(alphatpc16_state::flop_scsi_r)
{ {
u8 ret = 0;
switch(offset) switch(offset)
{ {
case 0: case 0:
m_ack = false; m_ack = false;
m_req = false; m_req = false;
return m_data; ret = m_data;
logerror("%s, data %x bsy %d sel %d req %d ack %d cd %d io %d\n", machine().describe_context(), m_data, m_bsy, m_sel, m_req, m_ack, m_cd, m_io);
break;
case 1: case 1:
return m_bsy | m_sel << 1 | m_ack << 2; ret = m_bsy | m_sel << 1 | !m_ack << 2;
m_ack = false;
break;
} }
return 0; return ret;
} }
void alphatpc16_state::apc16_map(address_map &map) void alphatpc16_state::apc16_map(address_map &map)
@ -352,6 +364,11 @@ static INPUT_PORTS_START( alphatpc16 )
PORT_BIT( 0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_HOME) PORT_BIT( 0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_HOME)
INPUT_PORTS_END INPUT_PORTS_END
static void atpc16_floppies(device_slot_interface &device)
{
device.option_add("525dd", FLOPPY_525_DD); // sa455
}
void alphatpc16_state::alphatpc16(machine_config &config) void alphatpc16_state::alphatpc16(machine_config &config)
{ {
/* basic machine hardware */ /* basic machine hardware */
@ -370,6 +387,7 @@ void alphatpc16_state::alphatpc16(machine_config &config)
m_z80->set_addrmap(AS_PROGRAM, &alphatpc16_state::apc16_z80_map); m_z80->set_addrmap(AS_PROGRAM, &alphatpc16_state::apc16_z80_map);
m_z80->set_addrmap(AS_IO, &alphatpc16_state::apc16_z80_io); m_z80->set_addrmap(AS_IO, &alphatpc16_state::apc16_z80_io);
WD1770(config, m_wdfdc, 8_MHz_XTAL); WD1770(config, m_wdfdc, 8_MHz_XTAL);
FLOPPY_CONNECTOR(config, "wdfdc:0", atpc16_floppies, "525dd", floppy_image_device::default_floppy_formats);
i8741a_device& i8741(I8741A(config, "i8741", 4.608_MHz_XTAL)); i8741a_device& i8741(I8741A(config, "i8741", 4.608_MHz_XTAL));
i8741.p1_in_cb().set(FUNC(alphatpc16_state::p1_r)); i8741.p1_in_cb().set(FUNC(alphatpc16_state::p1_r));