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Implement Voodoo CMDFIFO enable bit.

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This commit is contained in:
SarahW 2020-10-12 20:08:35 +01:00
commit c9891895da
4 changed files with 7 additions and 2 deletions
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3
src/vid_voodoo_banshee.c
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@ -1098,6 +1098,7 @@ static void banshee_cmd_write(banshee_t *banshee, uint32_t addr, uint32_t val)
case cmdBaseSize0:
voodoo->cmdfifo_size = val;
voodoo->cmdfifo_end = voodoo->cmdfifo_base + (((voodoo->cmdfifo_size & 0xff) + 1) << 12);
voodoo->cmdfifo_enabled = val & 0x100;
// pclog("cmdfifo_base=%08x cmdfifo_end=%08x\n", voodoo->cmdfifo_base, voodoo->cmdfifo_end);
break;
@ -1437,7 +1438,7 @@ static void banshee_write_linear_l(uint32_t addr, uint32_t val, void *p)
svga->changedvram[addr >> 12] = changeframecount;
*(uint32_t *)&svga->vram[addr & svga->vram_mask] = val;
if (addr >= voodoo->cmdfifo_base && addr < voodoo->cmdfifo_end)
if (voodoo->cmdfifo_enabled && addr >= voodoo->cmdfifo_base && addr < voodoo->cmdfifo_end)
{
// pclog("CMDFIFO write %08x %08x old amin=%08x amax=%08x hlcnt=%i depth_wr=%i rp=%08x\n", addr, val, voodoo->cmdfifo_amin, voodoo->cmdfifo_amax, voodoo->cmdfifo_holecount, voodoo->cmdfifo_depth_wr, voodoo->cmdfifo_rp);
if (addr == voodoo->cmdfifo_base && !voodoo->cmdfifo_holecount)