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Fixed off by one errors in (S)VGA horizontal blanking start calculation.

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OBattler
2024-02-18 17:54:14 +01:00
parent 0b5bf60aaf
commit 4c3cceec69
14 changed files with 28 additions and 34 deletions
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2
src/video/vid_mga.c
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@@ -945,7 +945,7 @@ mystique_recalctimings(svga_t *svga)
if (mystique->crtcext_regs[1] & CRTCX_R1_HTOTAL8)
svga->htotal |= 0x100;
svga->hblankstart = (((mystique->crtcext_regs[1] & 0x02) >> 2) << 8) + svga->crtc[2] + 1;
svga->hblankstart = (((mystique->crtcext_regs[1] & 0x02) >> 2) << 8) + svga->crtc[2];
if (mystique->crtcext_regs[2] & CRTCX_R2_VTOTAL10)
svga->vtotal |= 0x400;