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Fixed the SVGA code so characters skipped on scanline are no longer calculated twice, should fix more problems on that Kasan Korean card.

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This commit is contained in:
OBattler
2020-06-07 06:30:21 +02:00
parent 01dc901ace
commit c7bce543b0
1 changed files with 3 additions and 4 deletions
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7
src/video/vid_svga.c
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@@ -611,7 +611,6 @@ svga_poll(void *p)
svga_t *svga = (svga_t *)p; svga_t *svga = (svga_t *)p;
uint32_t x, blink_delay; uint32_t x, blink_delay;
int wx, wy; int wx, wy;
int skip = (svga->crtc[8] >> 5) & 0x03;
int ret, old_ma; int ret, old_ma;
if (!svga->linepos) { if (!svga->linepos) {
@@ -812,9 +811,9 @@ svga_poll(void *p)
svga->ma = svga->maback = svga->ma_latch + ((svga->crtc[5] & 0x60) >> 5); svga->ma = svga->maback = svga->ma_latch + ((svga->crtc[5] & 0x60) >> 5);
svga->ca = ((svga->crtc[0xe] << 8) | svga->crtc[0xf]) + ((svga->crtc[0xb] & 0x60) >> 5) + svga->ca_adj; svga->ca = ((svga->crtc[0xe] << 8) | svga->crtc[0xf]) + ((svga->crtc[0xb] & 0x60) >> 5) + svga->ca_adj;
svga->ma = (svga->ma << 2) + (skip << 2); svga->ma = (svga->ma << 2);
svga->maback = (svga->maback << 2) + (skip << 2); svga->maback = (svga->maback << 2);
svga->ca = (svga->ca << 2) + (skip << 2); svga->ca = (svga->ca << 2);
if (svga->vsync_callback) if (svga->vsync_callback)
svga->vsync_callback(svga); svga->vsync_callback(svga);