Function dmaSIF0

pcsx2/Sif0.cpp:343–370

}

__fi void dmaSIF0()
{
	SIF_LOG("dmaSIF0 %s", sif0ch.cmqt_to_str().c_str());

	if (sif0.fifo.readPos != sif0.fifo.writePos)
	{
		SIF_LOG("warning, sif0.fifoReadPos != sif0.fifoWritePos");
	}

	//if(sif0ch.chcr.MOD == CHAIN_MODE && sif0ch.qwc > 0) DevCon.Warning(L"SIF0 QWC on Chain CHCR " + sif0ch.chcr.desc());
	psHu32(SBUS_F240) |= 0x2000;
	sif0.ee.busy = true;

	// Okay, this here is needed currently (r3644).
	// FFX battles in the thunder plains map die otherwise, Phantasy Star 4 as well
	// These 2 games could be made playable again by increasing the time the EE or the IOP run,
	// showing that this is very timing sensible.
	// Doing this DMA unfortunately brings back an old warning in Legend of Legaia though, but it still works.

	//Updated 23/08/2011: The hangs are caused by the EE suspending SIF1 DMA and restarting it when in the middle
	//of processing a "REFE" tag, so the hangs can be solved by forcing the ee.end to be false
	// (as it should always be at the beginning of a DMA).  using "if iop is busy" flags breaks Tom Clancy Rainbow Six.
	// Legend of Legaia doesn't throw a warning either :)
	sif0.ee.end = false;
	CPU_SET_DMASTALL(DMAC_SIF0, false);
	SIF0Dma();

}