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Added Intel Premiere/PCI (Batman's Revenge) and Advanced/EV (Endeavor) motherboards.

Browse source 
Added emulation of i430LX and i430FX chipsets.
Added support for PCI configuration type 2, used by i430LX.
Added AT disable keyboard command, and fixed enable keyboard command.
Added emulation of Intel 28F001BXT flash ROM, used by Advanced/EV.
Fixed a bug in REP when using multiple 66/67 prefixes.
This commit is contained in:
TomW 2014-11-23 20:27:41 +00:00
commit 84ac04d2df
24 changed files with 835 additions and 137 deletions
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115
src/pci.c
View file

@ -7,26 +7,28 @@
void (*pci_card_write[32])(int func, int addr, uint8_t val, void *priv);
uint8_t (*pci_card_read[32])(int func, int addr, void *priv);
void *pci_priv[32];
static int pci_index, pci_func, pci_card, pci_bus, pci_enable;
static int pci_index, pci_func, pci_card, pci_bus, pci_enable, pci_key;
static int pci_min_card, pci_max_card;
void pci_cf8_write(uint16_t port, uint32_t val, void *p)
{
pci_index = val & 0xff;
pci_func = (val >> 8) & 7;
pci_card = (val >> 11) & 31;
pci_bus = (val >> 16) & 0xff;
pci_enable = (val >> 31) & 1;
}
uint32_t pci_cf8_read(uint16_t port, void *p)
{
return pci_index | (pci_func << 8) | (pci_card << 11) | (pci_bus << 16) | (pci_enable << 31);
}
void pci_write(uint16_t port, uint8_t val, void *priv)
{
// pclog("pci_write: port=%04x val=%02x %08x:%08x\n", port, val, cs, pc);
switch (port)
{
case 0xcf8:
pci_index = val;
break;
case 0xcf9:
pci_func = val & 7;
pci_card = val >> 3;
break;
case 0xcfa:
pci_bus = val;
break;
case 0xcfb:
pci_enable = val & 0x80;
break;
case 0xcfc: case 0xcfd: case 0xcfe: case 0xcff:
if (!pci_enable)
return;
@ -42,17 +44,9 @@ void pci_write(uint16_t port, uint8_t val, void *priv)
uint8_t pci_read(uint16_t port, void *priv)
{
// pclog("pci_read: port=%04x %08x:%08x\n", port, cs, pc);
switch (port)
{
case 0xcf8:
return pci_index;
case 0xcf9:
return pci_card << 3;
case 0xcfa:
return pci_bus;
case 0xcfb:
return pci_enable;
case 0xcfc: case 0xcfd: case 0xcfe: case 0xcff:
if (!pci_enable)
return 0xff;
@ -65,15 +59,82 @@ uint8_t pci_read(uint16_t port, void *priv)
return 0xff;
}
}
void pci_type2_write(uint16_t port, uint8_t val, void *priv);
uint8_t pci_type2_read(uint16_t port, void *priv);
void pci_type2_write(uint16_t port, uint8_t val, void *priv)
{
// pclog("pci_type2_write: port=%04x val=%02x %08x:%08x\n", port, val, cs, pc);
if (port == 0xcf8)
{
pci_func = (val >> 1) & 7;
if (!pci_key && (val & 0xf0))
io_sethandler(0xc000, 0x1000, pci_type2_read, NULL, NULL, pci_type2_write, NULL, NULL, NULL);
else
io_removehandler(0xc000, 0x1000, pci_type2_read, NULL, NULL, pci_type2_write, NULL, NULL, NULL);
pci_key = val & 0xf0;
}
else if (port == 0xcfa)
{
pci_bus = val;
}
else
{
pci_card = (port >> 8) & 0xf;
pci_index = port & 0xff;
// pclog("PCI write bus %i card %i func %i index %02X val %02X %04X:%04X\n", pci_bus, pci_card, pci_func, pci_index | (port & 3), val, CS, pc);
void pci_init()
if (!pci_bus && pci_card_write[pci_card])
pci_card_write[pci_card](pci_func, pci_index | (port & 3), val, pci_priv[pci_card]);
}
}
uint8_t pci_type2_read(uint16_t port, void *priv)
{
// pclog("pci_type2_read: port=%04x %08x:%08x\n", port, cs, pc);
if (port == 0xcf8)
{
return pci_key | (pci_func << 1);
}
else if (port == 0xcfa)
{
return pci_bus;
}
else
{
pci_card = (port >> 8) & 0xf;
pci_index = port & 0xff;
// pclog("PCI read bus %i card %i func %i index %02X %04X:%04X\n", pci_bus, pci_card, pci_func, pci_index | (port & 3), CS, pc);
if (!pci_bus && pci_card_write[pci_card])
return pci_card_read[pci_card](pci_func, pci_index | (port & 3), pci_priv[pci_card]);
}
return 0xff;
}
void pci_init(int type, int min_card, int max_card)
{
int c;
io_sethandler(0x0cf8, 0x0008, pci_read, NULL, NULL, pci_write, NULL, NULL, NULL);
if (type == PCI_CONFIG_TYPE_1)
{
io_sethandler(0x0cf8, 0x0001, NULL, NULL, pci_cf8_read, NULL, NULL, pci_cf8_write, NULL);
io_sethandler(0x0cfc, 0x0004, pci_read, NULL, NULL, pci_write, NULL, NULL, NULL);
}
else
{
io_sethandler(0x0cf8, 0x0001, pci_type2_read, NULL, NULL, pci_type2_write, NULL, NULL, NULL);
io_sethandler(0x0cfa, 0x0001, pci_type2_read, NULL, NULL, pci_type2_write, NULL, NULL, NULL);
}
for (c = 0; c < 32; c++)
pci_card_read[c] = pci_card_write[c] = pci_priv[c] = NULL;
pci_min_card = min_card;
pci_max_card = max_card;
}
void pci_add_specific(int card, uint8_t (*read)(int func, int addr, void *priv), void (*write)(int func, int addr, uint8_t val, void *priv), void *priv)
@ -87,7 +148,7 @@ void pci_add(uint8_t (*read)(int func, int addr, void *priv), void (*write)(int
{
int c;
for (c = 0; c < 32; c++)
for (c = pci_min_card; c <= pci_max_card; c++)
{
if (!pci_card_read[c] && !pci_card_write[c])
{