80486DX2-66/86Box-fork
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Made reg 0x53 (read only) default temp val to 0x70 to satisfy xgaaidos.sys's detection.

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Apparently MCA Audio cards always want auto-init enabled.
This commit is contained in:
TC1995
2022-07-19 17:25:17 +02:00
parent d3350fa06c
commit 8767bb5894
2 changed files with 3 additions and 3 deletions
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4
src/dma.c
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@@ -1448,7 +1448,7 @@ dma_channel_read(int channel)
dma_sg_next_addr(dma_c);
else {
tc = 1;
if (dma_c->mode & 0x10) { /*Auto-init*/
if ((dma_c->mode & 0x10) || dma_ps2.is_ps2) { /*Auto-init*/
dma_c->cc = dma_c->cb;
dma_c->ac = dma_c->ab;
} else
@@ -1536,7 +1536,7 @@ dma_channel_write(int channel, uint16_t val)
if (dma_advanced && (dma_c->sg_status & 1) && !(dma_c->sg_status & 6))
dma_sg_next_addr(dma_c);
else {
if (dma_c->mode & 0x10) { /*Auto-init*/
if ((dma_c->mode & 0x10) || dma_ps2.is_ps2) { /*Auto-init*/
dma_c->cc = dma_c->cb;
dma_c->ac = dma_c->ab;
} else

2
src/video/vid_xga.c
View File

@@ -577,7 +577,7 @@ xga_ext_inb(uint16_t addr, void *p)
ret = 0x0b;
break;
case 0x53:
ret = 0xb0;
ret = 0x70;
break;
case 0x54:
ret = xga->clk_sel_1;