80486DX2-66/86Box-fork
1
0
Fork 0
Code Issues Pull Requests Activity

Fixed text mode of the Sigma video card.

Browse Source
This commit is contained in:
TC1995
2021-11-26 23:14:20 +01:00
parent 5f6a8d5b02
commit 0264c31e8b
1 changed files with 4 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
src/video/vid_sigma.c
View File

@@ -416,10 +416,10 @@ static void sigma_text80(sigma_t *sigma)
int x, c; int x, c;
uint8_t chr, attr; uint8_t chr, attr;
uint16_t ca = (sigma->crtc[15] | (sigma->crtc[14] << 8)); 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; int drawcursor;
uint32_t cols[4]; uint32_t cols[4];
uint8_t *vram = sigma->vram + (ma & 0x3FFF); uint8_t *vram = sigma->vram + (ma << 1);
ca = ca << 1; ca = ca << 1;
if (sigma->sigma_ctl & CTL_CURSOR) if (sigma->sigma_ctl & CTL_CURSOR)
@@ -472,10 +472,10 @@ sigma_text40(sigma_t *sigma)
int x, c; int x, c;
uint8_t chr, attr; uint8_t chr, attr;
uint16_t ca = (sigma->crtc[15] | (sigma->crtc[14] << 8)); 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; int drawcursor;
uint32_t cols[4]; uint32_t cols[4];
uint8_t *vram = sigma->vram + (ma & 0x3FFF); uint8_t *vram = sigma->vram + ((ma << 1) & 0x3FFF);
ca = ca << 1; ca = ca << 1;
if (sigma->sigma_ctl & CTL_CURSOR) if (sigma->sigma_ctl & CTL_CURSOR)