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WD90C30: Maximum sequencer register is 15h, not 12h, fixes VESA1D.EXE detection.

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This commit is contained in:
Miran Grča
2025-07-18 02:55:07 +02:00
committed by GitHub
parent 8a9043ec96
commit d7f3138a53
1 changed files with 2 additions and 1 deletions
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3
src/video/vid_paradise.c
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@@ -85,6 +85,7 @@ paradise_in(uint16_t addr, void *priv)
{
paradise_t *paradise = (paradise_t *) priv;
svga_t *svga = &paradise->svga;
uint8_t max_sr = (paradise->type >= WD90C30) ? 0x15 : 0x12;
if (((addr & 0xfff0) == 0x3d0 || (addr & 0xfff0) == 0x3b0) && !(svga->miscout & 1))
addr ^= 0x60;
@@ -94,7 +95,7 @@ paradise_in(uint16_t addr, void *priv)
if (svga->seqaddr > 7) {
if (paradise->type < WD90C11 || svga->seqregs[6] != 0x48)
return 0xff;
if (svga->seqaddr > 0x12)
if (svga->seqaddr > max_sr)
return 0xff;
return svga->seqregs[svga->seqaddr & 0x1f];
}