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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_ati_mach64.c
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@@ -516,7 +516,7 @@ mach64_recalctimings(svga_t *svga)
svga->htotal = (mach64->crtc_h_total_disp & 255) + 1;
svga->hdisp_time = svga->hdisp = ((mach64->crtc_h_total_disp >> 16) & 255) + 1;
svga->hblankstart = (mach64->crtc_h_sync_strt_wid & 255) +
((mach64->crtc_h_sync_strt_wid >> 8) & 7) + 1;
((mach64->crtc_h_sync_strt_wid >> 8) & 7);
svga->hblank_end_val = (svga->hblankstart +
((mach64->crtc_h_sync_strt_wid >> 16) & 31) - 1) & 63;
svga->vsyncstart = (mach64->crtc_v_sync_strt_wid & 2047) + 1;