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Merge pull request #1878 from 86Box/tc1995

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Fixed text mode of the Sigma video card.
This commit is contained in:
Miran Grča
2021-11-27 01:22:34 +01:00
committed by GitHub
parent 5f6a8d5b02 0264c31e8b
commit 5b0d9b60f3
1 changed files with 4 additions and 4 deletions
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8
src/video/vid_sigma.c
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@@ -416,10 +416,10 @@ static void sigma_text80(sigma_t *sigma)
int x, c;
uint8_t chr, attr;
uint16_t ca = (sigma->crtc[15] | (sigma->crtc[14] << 8));
uint16_t ma = ((sigma->ma << 1) & 0x3FFF);
uint16_t ma = ((sigma->ma & 0x3FFF) << 1);
int drawcursor;
uint32_t cols[4];
uint8_t *vram = sigma->vram + (ma & 0x3FFF);
uint8_t *vram = sigma->vram + (ma << 1);
ca = ca << 1;
if (sigma->sigma_ctl & CTL_CURSOR)
@@ -472,10 +472,10 @@ sigma_text40(sigma_t *sigma)
int x, c;
uint8_t chr, attr;
uint16_t ca = (sigma->crtc[15] | (sigma->crtc[14] << 8));
uint16_t ma = ((sigma->ma << 1) & 0x3FFF);
uint16_t ma = ((sigma->ma & 0x3FFF) << 1);
int drawcursor;
uint32_t cols[4];
uint8_t *vram = sigma->vram + (ma & 0x3FFF);
uint8_t *vram = sigma->vram + ((ma << 1) & 0x3FFF);
ca = ca << 1;
if (sigma->sigma_ctl & CTL_CURSOR)