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more SVP work

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@320 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2008-01-15 18:55:10 +00:00
parent 017512f282
commit 5de27868df
8 changed files with 674 additions and 77 deletions
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10
Pico/carthw/svp/svp.c
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@ -6,6 +6,7 @@ static void PicoSVPReset(void)
{
elprintf(EL_SVP, "SVP reset");
memcpy(svp->iram_rom + 0x800, Pico.rom + 0x800, 0x20000 - 0x800);
ssp1601_reset(&svp->ssp1601);
}
@ -16,18 +17,17 @@ static void PicoSVPLine(void)
// OSC_NTSC / 3.0 / 60.0 / 262.0 ~= 1139
// OSC_PAL / 3.0 / 50.0 / 312.0 ~= 1137
ssp1601_run(100);
exit(1);
}
static int PicoSVPDma(unsigned int source, unsigned short **srcp, unsigned short **limitp)
static int PicoSVPDma(unsigned int source, int len, unsigned short **srcp, unsigned short **limitp)
{
if ((source & 0xfe0000) == 0x300000)
{
elprintf(EL_VDPDMA|EL_SVP, "SVP DmaSlow from %06x", source);
elprintf(EL_VDPDMA|EL_SVP, "SVP DmaSlow from %06x, len=%i", source, len);
source &= 0x1fffe;
*srcp = (unsigned short *)(svp->ram + source);
*limitp = (unsigned short *)(svp->ram + sizeof(svp->ram));
*srcp = (unsigned short *)(svp->dram + source);
*limitp = (unsigned short *)(svp->dram + sizeof(svp->dram));
return 1;
}