80486DX2-66/86Box-fork
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Fixed 16-bit DMA reads, fixes error 10482 on MCA IBM PS/2's with IBM ESDI controller.

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OBattler
2020-06-15 22:40:45 +02:00
parent af06ba62c0
commit 685dfbb24e
1 changed files with 3 additions and 3 deletions
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6
src/dma.c
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@@ -1243,13 +1243,13 @@ _dma_read(uint32_t addr, dma_t *dma_c)
static uint16_t
_dma_readw(uint32_t addr, dma_t *dma_c)
{
uint8_t temp;
uint16_t temp;
if (dma_advanced) {
if (dma_c->sg_status & 1)
dma_c->sg_status = (dma_c->sg_status & 0x0f) | (dma_sg(&temp, 2, 1, dma_c) << 4);
dma_c->sg_status = (dma_c->sg_status & 0x0f) | (dma_sg((uint8_t *) &temp, 2, 1, dma_c) << 4);
else
dma_bm_read(addr, &temp, 2, dma_transfer_size(dma_c));
dma_bm_read(addr, (uint8_t *) &temp, 2, dma_transfer_size(dma_c));
} else
temp = _dma_read(addr, dma_c) | (_dma_read(addr + 1, dma_c) << 8);