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Fixed UMC 888x shadow RAM.

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This commit is contained in:
OBattler
2021-09-17 02:52:44 +02:00
parent 2bc9e7520a
commit 89f1583a34
1 changed files with 13 additions and 10 deletions
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23
src/chipset/umc_hb4.c
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@@ -139,20 +139,22 @@ typedef struct hb4_t
void
hb4_shadow(hb4_t *dev)
{
int state, i;
mem_set_mem_state_both(0xe0000, 0x20000, ((dev->pci_conf[0x55] & 0x80) ? MEM_READ_INTERNAL : MEM_READ_EXTANY) |
((dev->pci_conf[0x55] & 0x40) ? MEM_WRITE_EXTANY : MEM_WRITE_INTERNAL));
if (dev->pci_conf[0x54] & 1) {
if (dev->pci_conf[0x54] & 2)
mem_set_mem_state_both(0xc0000, 0x8000, MEM_READ_INTERNAL | ((dev->pci_conf[0x55] & 0x40) ? MEM_WRITE_EXTANY :MEM_WRITE_INTERNAL));
else
mem_set_mem_state_both(0xc0000, 0x8000, MEM_READ_EXTANY | MEM_WRITE_EXTANY);
state = (dev->pci_conf[0x54] & 0x02) ? MEM_READ_INTERNAL : MEM_READ_EXTANY;
state |= (dev->pci_conf[0x55] & 0x40) ? MEM_WRITE_EXTANY : MEM_WRITE_INTERNAL;
for (int i = 0; i < 5; i++) {
if ((dev->pci_conf[0x54] >> i) & 4)
mem_set_mem_state_both(0xc8000 + (i << 14), 0x8000, MEM_READ_INTERNAL | ((dev->pci_conf[0x55] & 0x40) ? MEM_WRITE_EXTANY :MEM_WRITE_INTERNAL));
else
mem_set_mem_state_both(0xc8000 + (i << 14), 0x8000, MEM_READ_EXTANY | MEM_WRITE_EXTANY);
mem_set_mem_state_both(0xc0000, 0x8000, state);
for (i = 0; i < 6; i++) {
state = (dev->pci_conf[0x54] & (1 << (i + 2))) ? MEM_READ_INTERNAL : MEM_READ_EXTANY;
state |= (dev->pci_conf[0x55] & 0x40) ? MEM_WRITE_EXTANY : MEM_WRITE_INTERNAL;
mem_set_mem_state_both(0xc8000 + (i << 4), 0x4000, state);
}
}
@@ -265,7 +267,8 @@ hb4_reset(void *priv)
dev->pci_conf[0x5d] = 0x20;
dev->pci_conf[0x5f] = 0xff;
hb4_shadow(dev);
hb4_write(0, 0x54, 0x00, dev);
hb4_write(0, 0x55, 0x00, dev);
hb4_write(0, 0x60, 0x20, dev);
}