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Merge pull request #4024 from Cacodemon345/patch-154

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vid_cl54xx: Revert changes made to special blanking mode
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Miran Grča 2024-01-11 06:35:52 +01:00 committed by GitHub
commit 3b87bffda8
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1 changed files with 1 additions and 5 deletions
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6
src/video/vid_cl54xx.c
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@ -1950,7 +1950,7 @@ gd54xx_recalctimings(svga_t *svga)
and the actual blanking comes from the display enable signal. */
/* Start blanking at the first character clock after the last active one. */
svga->hblankstart = svga->crtc[1] + 1;
svga->hblank_end_val = (svga->htotal + 5) & 0xff;
svga->hblank_end_val = (svga->htotal + 5) & 0x3f;
/* In this mode, the dots per clock are always 8 or 16, never 9 or 18. */
if (!svga->scrblank && svga->attr_palette_enable)
svga->dots_per_clock = (svga->seqregs[1] & 8) ? 16 : 8;
@ -1958,10 +1958,6 @@ gd54xx_recalctimings(svga_t *svga)
svga->hblank_overscan = 0;
/* Also make sure vertical blanking starts on display end. */
svga->vblankstart = svga->dispend;
/* Account for horizontal overflow bits. */
svga->hblank_end_val += (svga->crtc[0x1a] & 0x30) << 2;
svga->hblank_end_len = 0x100;
}
if (!(svga->gdcreg[6] & 1) && !(svga->attrregs[0x10] & 1)) { /*Text mode*/