C++ (Cpp) pCPUTotalCycles Examples

Example #1

File: burn_ym3812.cpp Project: aquasnake/fba-sdl

INT32 BurnTimerUpdateYM3812(INT32 nCycles)
{
	INT32 nIRQStatus = 0;

	nTicksTotal = MAKE_TIMER_TICKS(nCycles, nCPUClockspeed);

//	bprintf(PRINT_NORMAL, _T(" -- Ticks: %08X, cycles %i\n"), nTicksTotal, nCycles);

	while (nTicksDone < nTicksTotal) {
		INT32 nTimer, nCyclesSegment, nTicksSegment;

		// Determine which timer fires first
		if (nTimerCount[0] <= nTimerCount[1]) {
			nTicksSegment = nTimerCount[0];
		} else {
			nTicksSegment = nTimerCount[1];
		}
		if (nTicksSegment > nTicksTotal) {
			nTicksSegment = nTicksTotal;
		}

		nCyclesSegment = MAKE_CPU_CYLES(nTicksSegment + nTicksExtra, nCPUClockspeed);
//		bprintf(PRINT_NORMAL, _T("  - Timer: %08X, %08X, %08X, cycles %i, %i\n"), nTicksDone, nTicksSegment, nTicksTotal, nCyclesSegment, pCPUTotalCycles());

		pCPURun(nCyclesSegment - pCPUTotalCycles());

		nTicksDone = MAKE_TIMER_TICKS(pCPUTotalCycles() + 1, nCPUClockspeed) - 1;
//		bprintf(PRINT_NORMAL, _T("  - ticks done -> %08X cycles -> %i\n"), nTicksDone, pCPUTotalCycles());

		nTimer = 0;
		if (nTicksDone >= nTimerCount[0]) {
			if (nTimerStart[0] == MAX_TIMER_VALUE) {
				nTimerCount[0] = MAX_TIMER_VALUE;
			} else {
				nTimerCount[0] += nTimerStart[0];
			}
//			bprintf(PRINT_NORMAL, _T("  - timer 0 fired\n"));
			nTimer |= 1;
		}
		if (nTicksDone >= nTimerCount[1]) {
			if (nTimerStart[1] == MAX_TIMER_VALUE) {
				nTimerCount[1] = MAX_TIMER_VALUE;
			} else {
				nTimerCount[1] += nTimerStart[1];
			}
//			bprintf(PRINT_NORMAL, _T("  - timer 1 fired\n"));
			nTimer |= 2;
		}
		if (nTimer & 1) {
			nIRQStatus |= pTimerOverCallback(0, 0);
		}
		if (nTimer & 2) {
			nIRQStatus |= pTimerOverCallback(0, 1);
		}
	}

	return nIRQStatus;
}

Example #2

INT32 BurnTimerUpdate(INT32 nCycles)
{
	INT32 nIRQStatus = 0;

	nTicksTotal = MAKE_TIMER_TICKS(nCycles, nCPUClockspeed);

	while (nTicksDone < nTicksTotal) {
		INT32 nTimer, nCyclesSegment, nTicksSegment;

		// Determine which timer fires first
		if (nTimerCount[0] <= nTimerCount[1]) {
			nTicksSegment = nTimerCount[0];
		} else {
			nTicksSegment = nTimerCount[1];
		}
		if (nTicksSegment > nTicksTotal) {
			nTicksSegment = nTicksTotal;
		}
		nCyclesSegment = MAKE_CPU_CYLES(nTicksSegment + nTicksExtra, nCPUClockspeed);
		pCPURun(nCyclesSegment - pCPUTotalCycles());
		nTicksDone = MAKE_TIMER_TICKS(pCPUTotalCycles() + 1, nCPUClockspeed) - 1;
		nTimer = 0;
		if (nTicksDone >= nTimerCount[0]) {
			if (nTimerStart[0] == MAX_TIMER_VALUE) {
				nTimerCount[0] = MAX_TIMER_VALUE;
			} else {
				nTimerCount[0] += nTimerStart[0];
			}
			nTimer |= 1;
		}
		if (nTicksDone >= nTimerCount[1]) {
			if (nTimerStart[1] == MAX_TIMER_VALUE) {
				nTimerCount[1] = MAX_TIMER_VALUE;
			} else {
				nTimerCount[1] += nTimerStart[1];
			}
			nTimer |= 2;
		}
		if (nTimer & 1) {
			nIRQStatus |= pTimerOverCallback(0, 0);
		}
		if (nTimer & 2) {
			nIRQStatus |= pTimerOverCallback(0, 1);
		}
	}

	return nIRQStatus;
}

Example #3

File: timer.cpp Project: tmaul/FBA4PSP

void BurnOPMTimerCallback(int c, double period)
{
	pCPURunEnd();
	
	if (period == 0.0) {
		nTimerCount[c] = MAX_TIMER_VALUE;
		return;
	}

	nTimerCount[c]  = (int)(period * (double)TIMER_TICKS_PER_SECOND);
	nTimerCount[c] += MAKE_TIMER_TICKS(pCPUTotalCycles(), nCPUClockspeed);
}

Example #4

File: burn_ym3812.cpp Project: aquasnake/fba-sdl

void BurnOPLTimerCallbackYM3812(INT32 c, double period)
{
	pCPURunEnd();

	if (period == 0.0) {
		nTimerCount[c] = MAX_TIMER_VALUE;
//		bprintf(PRINT_NORMAL, _T("  - timer %i stopped\n"), c);
		return;
	}

	nTimerCount[c]  = (INT32)(period * (double)TIMER_TICKS_PER_SECOND);
	nTimerCount[c] += MAKE_TIMER_TICKS(pCPUTotalCycles(), nCPUClockspeed);

//	bprintf(PRINT_NORMAL, _T("  - timer %i started, %08X ticks (fires in %lf seconds)\n"), c, nTimerCount[c], period);
}

Example #5

File: timer.cpp Project: tmaul/FBA4PSP

void BurnOPNTimerCallback(int  /*n */, int c, int cnt, double stepTime)
{
	pCPURunEnd();
	
	if (cnt == 0) {
		nTimerCount[c] = MAX_TIMER_VALUE;

//		bprintf(PRINT_NORMAL, _T("  - timer %i stopped\n"), c);

		return;
	}

	nTimerCount[c]  = (int)(stepTime * cnt * (double)TIMER_TICKS_PER_SECOND);
	nTimerCount[c] += MAKE_TIMER_TICKS(pCPUTotalCycles(), nCPUClockspeed);
//	bprintf(PRINT_NORMAL, _T("  - timer %i started, %08X ticks (fires in %lf seconds)\n"), c, nTimerCount[c], stepTime * cnt);
}

Example #6

File: timer.cpp Project: tmaul/FBA4PSP

void BurnTimerSetOneshot(int c, double period)
{
	pCPURunEnd();

	if (period == 0.0) {
		nTimerStart[c] = nTimerCount[c] = MAX_TIMER_VALUE;

//		bprintf(PRINT_NORMAL, _T("  - timer %i stopped\n"), c);

		return;
	}

	nTimerCount[c]  = (int)(period * (double)(TIMER_TICKS_PER_SECOND));
	nTimerCount[c] += MAKE_TIMER_TICKS(pCPUTotalCycles(), nCPUClockspeed);

//	bprintf(PRINT_NORMAL, _T("  - timer %i started, %08X ticks (fires in %lf seconds)\n"), c, nTimerCount[c], period / 1000000.0);
}