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altos8600: make hdd work (nw)

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This commit is contained in:
cracyc 2017-09-30 14:45:55 -05:00
parent c372b27444
commit 5ad0934626
2 changed files with 27 additions and 7 deletions
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2
src/devices/cpu/i8089/i8089_ops.cpp
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@ -399,7 +399,7 @@ void i8089_channel_device::tsl(int m, int8_t i, int8_t d, int o)
// set source and destination logical widths
void i8089_channel_device::wid(int s, int d)
{
m_r[PSW].w &= 0x3f;
m_r[PSW].w &= 0xfc;
m_r[PSW].w |= d << 0;
m_r[PSW].w |= s << 1;
}

32
src/mame/drivers/altos8600.cpp
View File

@ -63,6 +63,7 @@ public:
DECLARE_WRITE16_MEMBER(mode_w);
DECLARE_WRITE_LINE_MEMBER(cpuif_w);
DECLARE_WRITE_LINE_MEMBER(fddrq_w);
DECLARE_WRITE_LINE_MEMBER(sintr1_w);
DECLARE_WRITE8_MEMBER(ics_attn_w);
IRQ_CALLBACK_MEMBER(inta);
protected:
@ -123,7 +124,6 @@ void altos8600_state::machine_reset()
bool altos8600_state::find_sector()
{
u8 head = m_head >> 4;
logerror("head %d cyl %d curcyl %d sect %d", head, m_cyl, m_curcyl, m_sect);
if(!m_geom)
return false;
@ -166,6 +166,7 @@ u8 altos8600_state::read_sector()
if(secoff >= 511)
{
m_dmac->drq1_w(CLEAR_LINE);
m_pic2->ir0_w(ASSERT_LINE);
m_stat &= ~1;
m_stat |= 2;
}
@ -179,13 +180,13 @@ bool altos8600_state::write_sector(u8 data)
if(m_secoff >= 512)
return true;
m_sector[m_secoff++] = data;
logerror("secoff %d", m_secoff);
if(m_secoff == 512)
{
m_stat &= ~1;
m_stat |= 2;
hard_disk_write(m_hdd->get_hard_disk_file(), m_lba, m_sector);
m_dmac->drq1_w(CLEAR_LINE);
m_pic2->ir0_w(ASSERT_LINE);
return true;
}
return false;
@ -200,7 +201,7 @@ READ8_MEMBER(altos8600_state::hd_r)
return read_sector();
break;
case 3:
m_pic1->ir3_w(CLEAR_LINE);
m_pic2->ir0_w(CLEAR_LINE);
return m_stat;
}
return 0;
@ -238,7 +239,10 @@ WRITE8_MEMBER(altos8600_state::hd_w)
break;
}
if(m_sechi)
{
m_sechi = false;
m_sect |= (data & 7) << 8;
}
else
{
m_sechi = true;
@ -247,7 +251,10 @@ WRITE8_MEMBER(altos8600_state::hd_w)
break;
case 2:
if(m_cylhi)
{
m_cylhi = false;
m_cyl |= (data & 7) << 8;
}
else
{
m_cylhi = true;
@ -255,7 +262,6 @@ WRITE8_MEMBER(altos8600_state::hd_w)
}
break;
case 3:
logerror("cmd %02x stat %04x\n", data, m_stat);
m_cmd = data;
m_cylhi = false;
m_sechi = false;
@ -269,7 +275,7 @@ WRITE8_MEMBER(altos8600_state::hd_w)
m_curcyl = m_cyl;
m_stat |= 2;
break;
case 0x11:
case 0x20:
m_curcyl = 0;
m_stat |= 2;
break;
@ -310,6 +316,20 @@ WRITE_LINE_MEMBER(altos8600_state::fddrq_w)
m_dmac->drq2_w(state);
}
WRITE_LINE_MEMBER(altos8600_state::sintr1_w)
{
if(state)
{
m_dmac->drq1_w(CLEAR_LINE);
m_pic2->ir0_w(ASSERT_LINE);
m_pic2->ir3_w(ASSERT_LINE);
m_stat &= ~1;
m_stat |= 2;
}
else
m_pic2->ir3_w(CLEAR_LINE);
}
READ16_MEMBER(altos8600_state::fault_r)
{
return m_mmuerr;
@ -672,7 +692,7 @@ static MACHINE_CONFIG_START(altos8600)
MCFG_CPU_PROGRAM_MAP(dmac_mem)
MCFG_CPU_IO_MAP(dmac_io)
MCFG_I8089_DATABUS_WIDTH(16)
MCFG_I8089_SINTR1(DEVWRITELINE("pic8259_2", pic8259_device, ir3_w))
MCFG_I8089_SINTR1(WRITELINE(altos8600_state, sintr1_w))
MCFG_I8089_SINTR2(DEVWRITELINE("pic8259_2", pic8259_device, ir4_w))
MCFG_DEVICE_ADD("pic8259_1", PIC8259, 0)