Function hwDmacSrcChainWithStack

pcsx2/Hw.cpp:191–293

}

__ri bool hwDmacSrcChainWithStack(DMACh& dma, int id) {
	switch (id) {
		case TAG_REFE: // Refe - Transfer Packet According to ADDR field
			dma.tadr += 16;
            //End Transfer
			return true;

		case TAG_CNT: // CNT - Transfer QWC following the tag.
            // Set MADR to QW afer tag, and set TADR to QW following the data.
			dma.tadr += 16;
			dma.madr = dma.tadr;
			//dma.tadr = dma.madr + (dma.qwc << 4);
			return false;

		case TAG_NEXT: // Next - Transfer QWC following tag. TADR = ADDR
		{
		    // Set MADR to QW following the tag, and set TADR to the address formerly in MADR.
			u32 temp = dma.madr;
			dma.madr = dma.tadr + 16;
			dma.tadr = temp;
			return false;
		}
		case TAG_REF: // Ref - Transfer QWC from ADDR field
		case TAG_REFS: // Refs - Transfer QWC from ADDR field (Stall Control)
            //Set TADR to next tag
			dma.tadr += 16;
			return false;

		case TAG_CALL: // Call - Transfer QWC following the tag, save succeeding tag
		{
		    // Store the address in MADR in temp, and set MADR to the data following the tag.
			u32 temp = dma.madr;
			dma.madr = dma.tadr + 16;

			// Stash an address on the address stack pointer.
			switch(dma.chcr.ASP)
            {
                case 0: //Check if ASR0 is empty
                    // Store the succeeding tag in asr0, and mark chcr as having 1 address.
                    dma.asr0 = dma.madr + (dma.qwc << 4);
                    dma.chcr.ASP++;
                    break;

                case 1:
                    // Store the succeeding tag in asr1, and mark chcr as having 2 addresses.
                    dma.asr1 = dma.madr + (dma.qwc << 4);
                    dma.chcr.ASP++;
                    break;

                default:
                    Console.Warning("Call Stack Overflow (report if it fixes/breaks anything)");
                    return true;
			}

			// Set TADR to the address from MADR we stored in temp.
			dma.tadr = temp;

			return false;