claunia/86Box
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Recalculate svga->fast on Voodoo 3/Banshee packed Chain4 mode toggles

Browse Source 
Fixes Star Wars TIE Fighter 256-color screens after switching back from high-resolution modes.
This commit is contained in:
Cacodemon345
2025-08-27 18:00:04 +06:00
parent b072745fd7
commit 68f9c87a85
2 changed files with 9 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
src/video/vid_svga.c
View File

@@ -330,7 +330,9 @@ svga_out(uint16_t addr, uint8_t val, void *priv)
case 4:
svga->chain2_write = !(val & 4);
svga->chain4 = (svga->chain4 & ~8) | (val & 8);
svga->fast = (svga->gdcreg[8] == 0xff && !(svga->gdcreg[3] & 0x18) && !svga->gdcreg[1]) && ((svga->chain4 && (svga->packed_chain4 || svga->force_old_addr)) || svga->fb_only) && !(svga->adv_flags & FLAG_ADDR_BY8);
svga->fast = (svga->gdcreg[8] == 0xff && !(svga->gdcreg[3] & 0x18) && !svga->gdcreg[1]) &&
((svga->chain4 && (svga->packed_chain4 || svga->force_old_addr)) || svga->fb_only) &&
!(svga->adv_flags & FLAG_ADDR_BY8);
break;
default:
@@ -431,7 +433,9 @@ svga_out(uint16_t addr, uint8_t val, void *priv)
break;
}
svga->gdcreg[svga->gdcaddr & 15] = val;
svga->fast = (svga->gdcreg[8] == 0xff && !(svga->gdcreg[3] & 0x18) && !svga->gdcreg[1]) && ((svga->chain4 && (svga->packed_chain4 || svga->force_old_addr)) || svga->fb_only);
svga->fast = (svga->gdcreg[8] == 0xff && !(svga->gdcreg[3] & 0x18) && !svga->gdcreg[1]) &&
((svga->chain4 && (svga->packed_chain4 || svga->force_old_addr)) || svga->fb_only) &&
!(svga->adv_flags & FLAG_ADDR_BY8);;
if (((svga->gdcaddr & 15) == 5 && (val ^ o) & 0x70) || ((svga->gdcaddr & 15) == 6 && (val ^ o) & 1)) {
svga_log("GDCADDR%02x recalc.\n", svga->gdcaddr & 0x0f);
svga_recalctimings(svga);

3
src/video/vid_voodoo_banshee.c
View File

@@ -876,6 +876,9 @@ banshee_ext_outl(uint16_t addr, uint32_t val, void *priv)
svga->write_bank = (val & 0x3ff) << 15;
svga->read_bank = ((val >> 10) & 0x3ff) << 15;
svga->packed_chain4 = !!(val & 0x00100000);
svga->fast = (svga->gdcreg[8] == 0xff && !(svga->gdcreg[3] & 0x18) && !svga->gdcreg[1]) &&
((svga->chain4 && (svga->packed_chain4 || svga->force_old_addr)) || svga->fb_only) &&
!(svga->adv_flags & FLAG_ADDR_BY8);;
break;
case PLL_pllCtrl0: