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Added the ICS SB486PV.

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This commit is contained in:
OBattler
2025-05-17 02:35:11 +02:00
parent d35e29b871
commit e98424a8ae
9 changed files with 172 additions and 13 deletions
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7
src/chipset/intel_4x0.c
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@@ -1656,7 +1656,12 @@ i4x0_init(const device_t *info)
regs[0x57] = 0x31;
regs[0x59] = 0x0f;
regs[0x60] = regs[0x61] = regs[0x62] = regs[0x63] = 0x02;
dev->max_drb = 3;
/* At the very least the 420ZX seems to read to 0x64, per the SB486PV. */
if (dev->type == INTEL_420ZX) {
regs[0x64] = 0x02;
dev->max_drb = 4;
} else
dev->max_drb = 3;
dev->drb_unit = 1;
dev->drb_default = 0x02;
break;