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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
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)
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
GABRIELE 9009 typewriter, V24), floppy, module slot
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;
}
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)
{
u8 ret = 0;
switch(offset)
{
case 0:
m_ack = false;
m_ack = true;
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:
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)
@ -200,21 +205,28 @@ WRITE8_MEMBER(alphatpc16_state::flop_scsi_w)
m_bsy = !BIT(data, 0);
m_cd = !BIT(data, 2);
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)
{
u8 ret = 0;
switch(offset)
{
case 0:
m_ack = 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:
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)
@ -352,6 +364,11 @@ static INPUT_PORTS_START( alphatpc16 )
PORT_BIT( 0x0001, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_HOME)
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)
{
/* 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_IO, &alphatpc16_state::apc16_z80_io);
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));
i8741.p1_in_cb().set(FUNC(alphatpc16_state::p1_r));