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

Fixed the video RAM addresses in the text modes on the Sigma Color 400.

Browse Source
This commit is contained in:
OBattler
2019-11-08 23:45:05 +01:00
parent cc8ab094c7
commit d3bdee4ae1
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

@@ -8,7 +8,7 @@
* *
* Sigma Color 400 emulation. * Sigma Color 400 emulation.
* *
* Version: @(#)vid_sigma.c 1.0.4 2019/05/23 * Version: @(#)vid_sigma.c 1.0.5 2019/11/08
* *
* Authors: John Elliott, * Authors: John Elliott,
* *
@@ -422,7 +422,7 @@ static void sigma_text80(sigma_t *sigma)
uint16_t ma = ((sigma->ma << 1) & 0x3FFF); uint16_t ma = ((sigma->ma << 1) & 0x3FFF);
int drawcursor; int drawcursor;
uint32_t cols[4]; uint32_t cols[4];
uint8_t *vram = sigma->vram + ((ma << 1) % 4000); uint8_t *vram = sigma->vram + (ma & 0x3FFF);
ca = ca << 1; ca = ca << 1;
if (sigma->sigma_ctl & CTL_CURSOR) if (sigma->sigma_ctl & CTL_CURSOR)
@@ -475,10 +475,10 @@ 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 & 0x3FFF) << 1); uint16_t ma = ((sigma->ma << 1) & 0x3FFF);
int drawcursor; int drawcursor;
uint32_t cols[4]; uint32_t cols[4];
uint8_t *vram = sigma->vram + ((ma << 1) & 0x3FFF); uint8_t *vram = sigma->vram + (ma & 0x3FFF);
ca = ca << 1; ca = ca << 1;
if (sigma->sigma_ctl & CTL_CURSOR) if (sigma->sigma_ctl & CTL_CURSOR)