80486DX2-66/86Box-fork
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Restored the PCI bit (bit 7) of regs 0xec and 0xef of ports 0x21xb to the w32p when enabled as such.

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TC1995
2021-03-16 17:06:47 +01:00
parent 9d700ce8d2
commit 2d79719df5
1 changed files with 22 additions and 8 deletions
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30
src/video/vid_et4000w32.c
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@@ -334,10 +334,17 @@ uint8_t et4000w32p_in(uint16_t addr, void *p)
return (et4000->regs[0xec] & 0xf) | 0x30; /*ET4000/W32i rev B*/ return (et4000->regs[0xec] & 0xf) | 0x30; /*ET4000/W32i rev B*/
else if (et4000->type == ET4000W32) else if (et4000->type == ET4000W32)
return (et4000->regs[0xec] & 0xf); /*ET4000/W32*/ return (et4000->regs[0xec] & 0xf); /*ET4000/W32*/
else if (et4000->type == ET4000W32P || et4000->type == ET4000W32_DIAMOND) else if (et4000->type == ET4000W32P || et4000->type == ET4000W32_DIAMOND) {
return (et4000->regs[0xec] & 0xf) | 0x60; /*ET4000/W32p rev D*/ if (et4000->pci)
else return (et4000->regs[0xec] & 0xf) | 0xe0; /*ET4000/W32p rev D*/
return (et4000->regs[0xec] & 0xf) | 0x70; /*ET4000/W32p rev C*/ else
return (et4000->regs[0xec] & 0xf) | 0x60; /*ET4000/W32p rev D*/
} else {
if (et4000->pci)
return (et4000->regs[0xec] & 0xf) | 0xf0; /*ET4000/W32p rev C*/
else
return (et4000->regs[0xec] & 0xf) | 0x70; /*ET4000/W32p rev C*/
}
} }
if (et4000->index == 0xee) /*Preliminary implementation*/ if (et4000->index == 0xee) /*Preliminary implementation*/
{ {
@@ -354,10 +361,17 @@ uint8_t et4000w32p_in(uint16_t addr, void *p)
return et4000->regs[0xef] | 0x30; /*ET4000/W32i rev B*/ return et4000->regs[0xef] | 0x30; /*ET4000/W32i rev B*/
else if (et4000->type == ET4000W32) else if (et4000->type == ET4000W32)
return et4000->regs[0xef]; /*ET4000/W32*/ return et4000->regs[0xef]; /*ET4000/W32*/
else if (et4000->type == ET4000W32P || et4000->type == ET4000W32_DIAMOND) else if (et4000->type == ET4000W32P || et4000->type == ET4000W32_DIAMOND) {
return et4000->regs[0xef] | 0x60; /*ET4000/W32p rev D*/ if (et4000->pci)
else return et4000->regs[0xef] | 0xe0; /*ET4000/W32p rev D*/
return et4000->regs[0xec] | 0x70; /*ET4000/W32p rev C*/ else
return et4000->regs[0xef] | 0x60; /*ET4000/W32p rev D*/
} else {
if (et4000->pci)
return et4000->regs[0xec] | 0xf0; /*ET4000/W32p rev C*/
else
return et4000->regs[0xec] | 0x70; /*ET4000/W32p rev C*/
}
} }
return et4000->regs[et4000->index]; return et4000->regs[et4000->index];
} }