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Merge pull request #4764 from 86Box/tc1995

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More ViRGE fixes (August 29th, 2024)
This commit is contained in:
Miran Grča
2024-08-29 01:09:34 +02:00
committed by GitHub
parent 818c268f75 dd5c5f4a07
commit 447374bd65
1 changed files with 4 additions and 5 deletions
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9
src/video/vid_s3_virge.c
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@@ -471,7 +471,8 @@ s3_virge_update_irqs(virge_t *virge) {
} }
static void static void
s3_virge_out(uint16_t addr, uint8_t val, void *priv) { s3_virge_out(uint16_t addr, uint8_t val, void *priv)
{
virge_t *virge = (virge_t *) priv; virge_t *virge = (virge_t *) priv;
svga_t * svga = &virge->svga; svga_t * svga = &virge->svga;
uint8_t old; uint8_t old;
@@ -483,7 +484,7 @@ s3_virge_out(uint16_t addr, uint8_t val, void *priv) {
switch (addr) { switch (addr) {
case 0x3c5: case 0x3c5:
if (svga->seqaddr >= 0x10) { if (svga->seqaddr >= 0x10) {
svga->seqregs[svga->seqaddr & 0x1f] = val; svga->seqregs[svga->seqaddr] = val;
svga_recalctimings(svga); svga_recalctimings(svga);
return; return;
} }
@@ -519,8 +520,6 @@ s3_virge_out(uint16_t addr, uint8_t val, void *priv) {
return; return;
if ((svga->crtcreg == 0x36) && (svga->crtc[0x39] != 0xa5)) if ((svga->crtcreg == 0x36) && (svga->crtc[0x39] != 0xa5))
return; return;
if (svga->crtcreg >= 0x80)
return;
old = svga->crtc[svga->crtcreg]; old = svga->crtc[svga->crtcreg];
svga->crtc[svga->crtcreg] = val; svga->crtc[svga->crtcreg] = val;
@@ -707,7 +706,7 @@ s3_virge_in(uint16_t addr, void *priv) {
case 0x3c5: case 0x3c5:
if (svga->seqaddr >= 8) if (svga->seqaddr >= 8)
ret = svga->seqregs[svga->seqaddr & 0x1f]; ret = svga->seqregs[svga->seqaddr];
else if (svga->seqaddr <= 4) else if (svga->seqaddr <= 4)
ret = svga_in(addr, svga); ret = svga_in(addr, svga);
else else