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S3 ViRGE 256kb RAM mask now only applied in VGA mode.

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This commit is contained in:
TomW 2015-09-10 21:10:50 +01:00
commit 390c5e2999
1 changed files with 4 additions and 1 deletions
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5
src/vid_s3_virge.c
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@ -293,7 +293,8 @@ static void s3_virge_out(uint16_t addr, uint8_t val, void *p)
virge->ma_ext = (virge->ma_ext & 0x1c) | ((val & 0x30) >> 4);
break;
case 0x32:
svga->vrammask = (val & 0x40) ? 0x3ffff : ((virge->memory_size << 20) - 1);
if ((svga->crtc[0x67] & 0xc) != 0xc)
svga->vrammask = (val & 0x40) ? 0x3ffff : ((virge->memory_size << 20) - 1);
break;
case 0x50:
@ -505,6 +506,7 @@ static void s3_virge_recalctimings(svga_t *svga)
{
svga->rowoffset = (svga->rowoffset * 3) / 4; /*Hack*/
}
svga->vrammask = (svga->crtc[0x32] & 0x40) ? 0x3ffff : ((virge->memory_size << 20) - 1);
//pclog("VGA mode x_disp=%i dispend=%i vtotal=%i\n", svga->hdisp, svga->dispend, svga->vtotal);
}
else /*Streams mode*/
@ -551,6 +553,7 @@ static void s3_virge_recalctimings(svga_t *svga)
svga->render = svga_render_32bpp_highres;
break;
}
svga->vrammask = (virge->memory_size << 20) - 1;
}
if (((svga->miscout >> 2) & 3) == 3)