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Document some findings on VIF1DMA issues. 

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@2514 96395faa-99c1-11dd-bbfe-3dabce05a288
This commit is contained in:
ramapcsx2 2010-01-24 20:41:38 +00:00
parent 6fdeb8d64a
commit ddfb8de7f1
1 changed files with 8 additions and 2 deletions
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10
pcsx2/Vif1_Dma.cpp
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@ -93,7 +93,12 @@ bool VIF1transfer(u32 *data, int size, bool istag)
{
int ret;
int transferred = vif1.vifstalled ? vif1.irqoffset : 0; // irqoffset necessary to add up the right qws, or else will spin (spiderman)
// Fixme:
// VIF1 chain mode seems to be pretty buggy. Keep it in synch with a INTC (page 28, ee user manual) fixes Transformers.
// Test chain mode with Harry Potter, Def Jam Fight for New York (+many others, look for flickering graphics).
// Mentioned games break by doing this, but they barely work anyway
// if ( vif1.vifstalled ) hwIntcIrq(VIF1intc);
VIF_LOG("VIF1transfer: size %x (vif1.cmd %x)", size, vif1.cmd);
vif1.irqoffset = 0;
@ -156,8 +161,9 @@ bool VIF1transfer(u32 *data, int size, bool istag)
if (!(vif1Regs->err.MII)) //i bit on vifcode and not masked by VIF1_ERR
{
// Fixme: This seems to be an important part of the VIF1 chain mode issue (see Fixme above :p )
//Console.Warning("Interrupt on VIFcmd: %x (INTC_MASK = %x)", vif1.cmd, psHu32(INTC_MASK));
VIF_LOG("Interrupt on VIFcmd: %x (INTC_MASK = %x)", vif1.cmd, psHu32(INTC_MASK));
++vif1.irq;
if (istag && vif1.tag.size <= vif1.vifpacketsize) vif1.stallontag = true;