Function _cpuTestInterrupts

pcsx2/R5900.cpp:260–316

[TODO] move this function to Dmac.cpp, and remove most of the DMAC-related headers from being included into R5900.cpp.

// [TODO] move this function to Dmac.cpp, and remove most of the DMAC-related headers from
// being included into R5900.cpp.
static __fi bool _cpuTestInterrupts()
{

	if (!dmacRegs.ctrl.DMAE || (psHu8(DMAC_ENABLER+2) & 1))
	{
		//Console.Write("DMAC Disabled or suspended");
		return false;
	}

	eeRunInterruptScan = INT_RUNNING;

	while (eeRunInterruptScan == INT_RUNNING)
	{
		/* These are 'pcsx2 interrupts', they handle asynchronous stuff
		   that depends on the cycle timings */
		TESTINT(VU_MTVU_BUSY, MTVUInterrupt);
		TESTINT(DMAC_VIF1, vif1Interrupt);
		TESTINT(DMAC_GIF, gifInterrupt);
		TESTINT(DMAC_SIF0, EEsif0Interrupt);
		TESTINT(DMAC_SIF1, EEsif1Interrupt);
		// Profile-guided Optimization (sorta)
		// The following ints are rarely called.  Encasing them in a conditional
		// as follows helps speed up most games.

		if (cpuRegs.interrupt & ((1 << DMAC_VIF0) | (1 << DMAC_FROM_IPU) | (1 << DMAC_TO_IPU)
			| (1 << DMAC_FROM_SPR) | (1 << DMAC_TO_SPR) | (1 << DMAC_MFIFO_VIF) | (1 << DMAC_MFIFO_GIF)
			| (1 << VIF_VU0_FINISH) | (1 << VIF_VU1_FINISH) | (1 << IPU_PROCESS)))
		{
			TESTINT(DMAC_VIF0, vif0Interrupt);

			TESTINT(DMAC_FROM_IPU, ipu0Interrupt);
			TESTINT(DMAC_TO_IPU, ipu1Interrupt);
			TESTINT(IPU_PROCESS, ipuCMDProcess);

			TESTINT(DMAC_FROM_SPR, SPRFROMinterrupt);
			TESTINT(DMAC_TO_SPR, SPRTOinterrupt);

			TESTINT(DMAC_MFIFO_VIF, vifMFIFOInterrupt);
			TESTINT(DMAC_MFIFO_GIF, gifMFIFOInterrupt);

			TESTINT(VIF_VU0_FINISH, vif0VUFinish);
			TESTINT(VIF_VU1_FINISH, vif1VUFinish);
		}

		if (eeRunInterruptScan == INT_REQ_LOOP)
			eeRunInterruptScan = INT_RUNNING;
		else
			break;
	}

	eeRunInterruptScan = INT_NOT_RUNNING;

	if ((cpuRegs.interrupt & 0x1FFFF) & ~cpuRegs.dmastall)
		return true;
	else
		return false;
}