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Fixed vblank start on S3 864/Trio64 - fixes 1280x1024.

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This commit is contained in:
TomW 2014-03-22 15:37:36 +00:00
commit f51d8bead4
2 changed files with 11 additions and 10 deletions
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9
src/vid_s3.c
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@ -277,10 +277,11 @@ void s3_recalctimings(svga_t *svga)
svga->hdisp_time += 0x100;
svga->hdisp += 0x100 * ((svga->seqregs[1] & 8) ? 16 : 8);
}
if (svga->crtc[0x5e] & 0x01) svga->vtotal += 0x400;
if (svga->crtc[0x5e] & 0x02) svga->dispend += 0x400;
if (svga->crtc[0x5e] & 0x10) svga->vsyncstart += 0x400;
if (svga->crtc[0x5e] & 0x40) svga->split += 0x400;
if (svga->crtc[0x5e] & 0x01) svga->vtotal += 0x400;
if (svga->crtc[0x5e] & 0x02) svga->dispend += 0x400;
if (svga->crtc[0x5e] & 0x04) svga->vblankstart += 0x400;
if (svga->crtc[0x5e] & 0x10) svga->vsyncstart += 0x400;
if (svga->crtc[0x5e] & 0x40) svga->split += 0x400;
if (svga->crtc[0x51] & 0x30) svga->rowoffset += (svga->crtc[0x51] & 0x30) << 4;
else if (svga->crtc[0x43] & 0x04) svga->rowoffset += 0x100;
if (!svga->rowoffset) svga->rowoffset = 256;