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Improved fdc hookup

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This commit is contained in:
Angelo Salese 2014-04-11 20:28:15 +00:00
parent 48f45f780a
commit 1e0afe617e
2 changed files with 56 additions and 14 deletions
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68
src/mame/machine/archimds.c
View File

@ -685,9 +685,19 @@ READ32_MEMBER(archimedes_state::archimedes_ioc_r)
{
case 0: return ioc_ctrl_r(space,offset,mem_mask);
case 1:
if (m_fdc) {
logerror("17XX: R @ addr %x mask %08x\n", offset*4, mem_mask);
return m_fdc->data_r(space, offset&0xf);
if (m_fdc)
{
//printf("17XX: R @ addr %x mask %08x\n", offset*4, mem_mask);
switch(ioc_addr & 0xc)
{
case 0x00: return m_fdc->status_r();
case 0x04: return m_fdc->track_r();
case 0x08: return m_fdc->sector_r();
case 0x0c: return m_fdc->data_r();
}
return 0;
} else {
logerror("Read from FDC device?\n");
return 0;
@ -702,14 +712,21 @@ READ32_MEMBER(archimedes_state::archimedes_ioc_r)
logerror("IOC: Internal Podule Read\n");
return 0xffff;
case 5:
if (m_fdc) {
if (m_fdc)
{
switch(ioc_addr & 0xfffc)
{
case 0x18: return 0xff; // FDC latch B
case 0x40: return 0xff; // FDC latch A
case 0x50: return 0; //fdc type, new model returns 5 here
case 0x70: return 0x0F;
case 0x74: return 0xFF; // unknown
// case 0x78: /* joystick */
// case 0x7c:
}
}
logerror("IOC: Internal Latches Read %08x\n",ioc_addr);
//printf("IOC: Internal Latches Read %08x\n",ioc_addr);
return 0xffff;
}
@ -740,10 +757,30 @@ WRITE32_MEMBER(archimedes_state::archimedes_ioc_w)
{
case 0: ioc_ctrl_w(space,offset,data,mem_mask); return;
case 1:
if (m_fdc) {
logerror("17XX: %x to addr %x mask %08x\n", data, offset*4, mem_mask);
m_fdc->data_w(space, offset&0xf, data&0xff);
} else {
if (m_fdc)
{
//printf("17XX: %x to addr %x mask %08x\n", data, offset*4, mem_mask);
switch(ioc_addr & 0xc)
{
case 0x00:
m_fdc->cmd_w(data);
return;
case 0x04:
m_fdc->track_w(data);
return;
case 0x08:
m_fdc->sector_w(data);
return;
case 0x0c:
m_fdc->data_w(data);
return;
}
}
else
{
logerror("Write to FDC device?\n");
}
return;
@ -757,11 +794,12 @@ WRITE32_MEMBER(archimedes_state::archimedes_ioc_w)
logerror("IOC: Internal Podule Write\n");
return;
case 5:
if (m_fdc) {
if (m_fdc)
{
switch(ioc_addr & 0xfffc)
{
case 0x18: // latch B
m_fdc->dden_w(BIT(data, 1));
m_fdc->dden_w(!(BIT(data, 1)));
return;
case 0x40: // latch A
@ -769,19 +807,21 @@ WRITE32_MEMBER(archimedes_state::archimedes_ioc_w)
if (data & 1) { floppy = m_floppy0->get_device(); }
if (data & 2) { floppy = m_floppy1->get_device(); }
//if (data & 4) { m_fdc->set_drive(2); }
//if (data & 8) { m_fdc->set_drive(3); }
if (data & 4) { floppy = NULL; } // floppy 2
if (data & 8) { floppy = NULL; } // floppy 3
m_fdc->set_floppy(floppy);
if(floppy)
{
floppy->mon_w(BIT(data, 5));
m_fdc->dden_w(BIT(data, 4));
floppy->ss_w(BIT(data, 4));
}
//bit 5 is motor on
return;
}
//printf("%08x\n",ioc_addr);
}
break;
}

2
src/mess/drivers/a310.c
View File

@ -360,6 +360,8 @@ static MACHINE_CONFIG_START( a310, a310_state )
MCFG_RAM_EXTRA_OPTIONS("512K, 1M, 4M, 8M, 16M")
MCFG_WD1772x_ADD("fdc", 8000000 / 2)
MCFG_WD_FDC_INTRQ_CALLBACK(WRITELINE( a310_state, a310_wd177x_intrq_w))
MCFG_WD_FDC_DRQ_CALLBACK(WRITELINE(a310_state, a310_wd177x_drq_w))
MCFG_FLOPPY_DRIVE_ADD("fdc:0", a310_floppies, "35dd", a310_state::floppy_formats)
MCFG_FLOPPY_DRIVE_ADD("fdc:1", a310_floppies, "35dd", a310_state::floppy_formats)