Method AutoDMAReadBuffer

pcsx2/SPU2/Dma.cpp:94–149

}

void V_Core::AutoDMAReadBuffer(int mode) //mode: 0= split stereo; 1 = do not split stereo
{
	u32 spos = InputPosWrite & 0x100; // Starting position passed by TSA
	bool leftbuffer = !(InputPosWrite & 0x80);

	if (InputPosWrite == 0xFFFF) // Data request not made yet
		return;

	AutoDMACtrl &= 0x3;

	int size = std::min(InputDataLeft, (u32)0x200);
	if (!leftbuffer)
		size = std::min(size, 0x100);
#ifdef PCSX2_DEVBUILD
	LogAutoDMA(Index ? ADMA7LogFile : ADMA4LogFile);
#endif
	//ConLog("Refilling ADMA buffer at %x OutPos %x with %x\n", spos, OutPos, size);
	// HACKFIX!! DMAPtr can be invalid after a savestate load, so the savestate just forces it
	// to nullptr and we ignore it here.  (used to work in old VM editions of PCSX2 with fixed
	// addressing, but new PCSX2s have dynamic memory addressing).
	if (DMAPtr == nullptr)
	{
		DMAPtr = (u16*)iopPhysMem(MADR);
		InputDataProgress = 0;
	}

	if (mode)
	{
		if (DMAPtr != nullptr)
			memcpy(GetMemPtr(0x2000 + (Index << 10) + spos), DMAPtr + InputDataProgress, size);
		MADR += size;
		InputDataLeft -= 0x200;
		InputDataProgress += 0x200;
	}
	else
	{
		while (size)
		{
			if (!leftbuffer)
				spos |= 0x200;
			else
				spos &= ~0x200;

			if (DMAPtr != nullptr)
				memcpy(GetMemPtr(0x2000 + (Index << 10) + spos), DMAPtr + InputDataProgress, 0x200);
			InputDataTransferred += 0x200;
			InputDataLeft -= 0x100;
			InputDataProgress += 0x100;
			leftbuffer = !leftbuffer;
			size -= 0x100;
			InputPosWrite += 0x80;
		}
	}
	if (!(InputPosWrite & 0x80))
		InputPosWrite = 0xFFFF;
}

void V_Core::StartADMAWrite(u16* pMem, u32 sz)