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Fixed GIF MFIFO for Front Mission 4 

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@1260 96395faa-99c1-11dd-bbfe-3dabce05a288
This commit is contained in:
refraction 2009-05-25 12:16:02 +00:00
parent f8505c9eaf
commit 1d4ad79349
1 changed files with 16 additions and 12 deletions
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22
pcsx2/Gif.cpp
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@ -328,6 +328,7 @@ void GIFdma()
GIF_LOG("dmaIrq Set");
gspath3done = 1;
}
GIF_LOG("gifdmaChain %8.8x_%8.8x size=%d, id=%d, addr=%lx", ptag[1], ptag[0], gif->qwc, id, gif->madr);
GIFdmaEnd();
return;
@ -397,12 +398,15 @@ static __forceinline int mfifoGIFrbTransfer() {
/* it does, so first copy 's1' bytes from 'addr' to 'data' */
src = (u32*)PSM(gif->madr);
if (src == NULL) return -1;
WRITERING_DMA(src, s1);
s1 = WRITERING_DMA(src, s1);
if(s1 == (((psHu32(DMAC_RBOR) + psHu32(DMAC_RBSR)+16) - gif->madr) >> 4))
{
/* and second copy 's2' bytes from 'maddr' to '&data[s1]' */
src = (u32*)PSM(psHu32(DMAC_RBOR));
if (src == NULL) return -1;
WRITERING_DMA(src, (mfifoqwc - s1));
mfifoqwc = WRITERING_DMA(src, (mfifoqwc - s1)) + s1;
}
}
else
@ -412,13 +416,13 @@ static __forceinline int mfifoGIFrbTransfer() {
src = (u32*)PSM(gif->madr);
if (src == NULL) return -1;
WRITERING_DMA(src, mfifoqwc);
mfifoqwc = WRITERING_DMA(src, mfifoqwc);
gif->madr = psHu32(DMAC_RBOR) + (gif->madr & psHu32(DMAC_RBSR));
}
gifqwc -= mfifoqwc;
gif->qwc -= mfifoqwc;
gif->madr += mfifoqwc*16;
//gif->qwc -= mfifoqwc;
//gif->madr += mfifoqwc*16;
//mfifocycles += (mfifoqwc) * 2; /* guessing */
return 0;
@ -442,8 +446,8 @@ static __forceinline int mfifoGIFchain() {
if (pMem == NULL) return -1;
WRITERING_DMA(pMem, mfifoqwc);
gif->madr += mfifoqwc*16;
gif->qwc -= mfifoqwc;
//gif->madr += mfifoqwc*16;
//gif->qwc -= mfifoqwc;
mfifocycles += (mfifoqwc) * 2; /* guessing */
}
@ -464,7 +468,7 @@ void mfifoGIFtransfer(int qwc) {
gifstate &= ~GIF_STATE_EMPTY;
}
SPR_LOG("mfifoGIFtransfer %x madr %x, tadr %x", gif->chcr, gif->madr, gif->tadr);
GIF_LOG("mfifoGIFtransfer %x madr %x, tadr %x", gif->chcr, gif->madr, gif->tadr);
if (gif->qwc == 0) {
if (gif->tadr == spr0->madr) {
@ -482,7 +486,7 @@ void mfifoGIFtransfer(int qwc) {
mfifocycles += 2;
gif->chcr = ( gif->chcr & 0xFFFF ) | ( (*ptag) & 0xFFFF0000 );
SPR_LOG("dmaChain %8.8x_%8.8x size=%d, id=%d, madr=%lx, tadr=%lx mfifo qwc = %x spr0 madr = %x",
GIF_LOG("dmaChain %8.8x_%8.8x size=%d, id=%d, madr=%lx, tadr=%lx mfifo qwc = %x spr0 madr = %x",
ptag[1], ptag[0], gif->qwc, id, gif->madr, gif->tadr, gifqwc, spr0->madr);
gifqwc--;