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better fix for the dma, the last one caused an mmu fault on fatal fury

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This commit is contained in:
davidhay 2009-04-28 21:46:30 +00:00
parent 4ef6f9103d
commit d88da3d539
1 changed files with 6 additions and 8 deletions
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14
src/mame/drivers/hng64.c
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@ -636,10 +636,10 @@ static READ32_HANDLER( hng64_port_read )
/* preliminary dma code, dma is used to copy program code -> ram */
static int hng_dma_start,hng_dma_dst,hng_dma_len;
static INT32 hng_dma_start,hng_dma_dst,hng_dma_len;
static void hng64_do_dma (const address_space *space)
{
logerror("Performing DMA Start %08x Len %08x Dst %08x\n",hng_dma_start, hng_dma_len, hng_dma_dst);
printf("Performing DMA Start %08x Len %08x Dst %08x\n",hng_dma_start, hng_dma_len, hng_dma_dst);
while (hng_dma_len>=0)
{
@ -651,28 +651,26 @@ static void hng64_do_dma (const address_space *space)
hng_dma_dst+=4;
hng_dma_len--;
}
hng_dma_start+=4;
hng_dma_dst+=4;
}
static WRITE32_HANDLER( hng_dma_start_w )
{
logerror ("DMA Start Write %08x\n",data);
hng_dma_start = data;
COMBINE_DATA(&hng_dma_start);
}
static WRITE32_HANDLER( hng_dma_dst_w )
{
logerror ("DMA Dst Write %08x\n",data);
hng_dma_dst = data;
COMBINE_DATA(&hng_dma_dst);
}
static WRITE32_HANDLER( hng_dma_len_w )
{
logerror ("DMA Len Write %08x\n",data);
hng_dma_len = data;
COMBINE_DATA(&hng_dma_len);
hng64_do_dma(space);
}