Esempio n. 1
0
static void cpu_pre_run(void)
{
	int cpunum;

	logerror("Machine reset\n");

	begin_resource_tracking();

	/* read hi scores information from hiscore.dat */
	hs_open(Machine->gamedrv->name);
	hs_init();

	/* initialize the various timers (suspends all CPUs at startup) */
	cpu_inittimers();
	watchdog_counter = -1;

	/* reset sound chips */
	sound_reset();

	/* first pass over CPUs */
	for (cpunum = 0; cpunum < cpu_gettotalcpu(); cpunum++)
	{
		/* enable all CPUs (except for audio CPUs if the sound is off) */
		if (!(Machine->drv->cpu[cpunum].cpu_flags & CPU_AUDIO_CPU) || Machine->sample_rate != 0)
			cpunum_resume(cpunum, SUSPEND_ANY_REASON);
		else
			cpunum_suspend(cpunum, SUSPEND_REASON_DISABLE, 1);

		/* reset the interrupt state */
		cpuint_reset_cpu(cpunum);

		/* reset the total number of cycles */
		cpu[cpunum].totalcycles = 0;
		cpu[cpunum].localtime = 0;
	}

	vblank = 0;

	/* do this AFTER the above so machine_init() can use cpu_halt() to hold the */
	/* execution of some CPUs, or disable interrupts */
	if (Machine->drv->machine_init)
		(*Machine->drv->machine_init)();

	/* now reset each CPU */
	for (cpunum = 0; cpunum < cpu_gettotalcpu(); cpunum++)
		cpunum_reset(cpunum, Machine->drv->cpu[cpunum].reset_param, cpu_irq_callbacks[cpunum]);

	/* reset the globals */
	cpu_vblankreset();
	current_frame = 0;
	state_save_dump_registry();
}
Esempio n. 2
0
static void halt_callback(int param)
{
	int cpunum = param & 0xff;
	int state = param >> 8;

	/* if asserting, halt the CPU */
	if (state == ASSERT_LINE)
		cpunum_suspend(cpunum, SUSPEND_REASON_HALT, 1);

	/* if clearing, unhalt the CPU */
	else if (state == CLEAR_LINE)
		cpunum_resume(cpunum, SUSPEND_REASON_HALT);
}
Esempio n. 3
0
static void IntReq(int num)
{
	UINT32 IntEn=program_read_dword_32le(0x01800c08);
	UINT32 IntPend=program_read_dword_32le(0x01800c0c);
	if(IntEn&(1<<num))
	{
		IntPend|=(1<<num);
		program_write_dword_32le(0x01800c0c,IntPend);
		cpunum_set_input_line(0,SE3208_INT,ASSERT_LINE);
	}
#ifdef IDLE_LOOP_SPEEDUP
	FlipCntRead=0;
	cpunum_resume(0,SUSPEND_REASON_SPIN);
#endif
}
Esempio n. 4
0
static void reset_callback(int param)
{
	int cpunum = param & 0xff;
	int state = param >> 8;

	/* if we're asserting the line, just halt the CPU */
	if (state == ASSERT_LINE)
	{
		cpunum_suspend(cpunum, SUSPEND_REASON_RESET, 1);
		return;
	}

	/* if we're clearing the line that was previously asserted, or if we're just */
	/* pulsing the line, reset the CPU */
	if ((state == CLEAR_LINE && (cpu[cpunum].suspend & SUSPEND_REASON_RESET)) || state == PULSE_LINE)
		cpunum_reset(cpunum, Machine->drv->cpu[cpunum].reset_param, cpu_irq_callbacks[cpunum]);

	/* if we're clearing the line, make sure the CPU is not halted */
	cpunum_resume(cpunum, SUSPEND_REASON_RESET);
}
Esempio n. 5
0
void cpu_trigger(int trigger)
{
	int cpunum;
	
	/* cause an immediate resynchronization */
	if (cpu_getexecutingcpu() >= 0)
		activecpu_abort_timeslice();

	/* look for suspended CPUs waiting for this trigger and unsuspend them */
	for (cpunum = 0; cpunum < MAX_CPU; cpunum++)
	{
		/* if this is a dummy, stop looking */
		if (Machine->drv->cpu[cpunum].cpu_type == CPU_DUMMY)
			break;

		/* see if this is a matching trigger */
		if (cpu[cpunum].suspend && cpu[cpunum].trigger == trigger)
		{
			cpunum_resume(cpunum, SUSPEND_REASON_TRIGGER);
			cpu[cpunum].trigger = 0;
		}
	}
}
Esempio n. 6
0
void jaguar_dsp_resume(void)
{
	cpunum_resume(2, SUSPEND_REASON_SPIN);
}
Esempio n. 7
0
static TIMER_CALLBACK( cpunum_empty_event_queue )
{
	int cpunum = param & 0xff;
	int line = param >> 8;
	int i;

	/* swap to the CPU's context */
	cpuintrf_push_context(cpunum);

	/* loop over all events */
	for (i = 0; i < input_event_index[cpunum][line]; i++)
	{
		INT32 input_event = input_event_queue[cpunum][line][i];
		int state = input_event & 0xff;
		int vector = input_event >> 8;

		LOG(("cpunum_empty_event_queue %d,%d,%d\n",cpunum,line,state));

		/* set the input line state and vector */
		input_line_state[cpunum][line] = state;
		input_line_vector[cpunum][line] = vector;

		/* special case: RESET */
		if (line == INPUT_LINE_RESET)
		{
			/* if we're asserting the line, just halt the CPU */
			if (state == ASSERT_LINE)
				cpunum_suspend(cpunum, SUSPEND_REASON_RESET, 1);
			else
			{
				/* if we're clearing the line that was previously asserted, or if we're just */
				/* pulsing the line, reset the CPU */
				if ((state == CLEAR_LINE && cpunum_is_suspended(cpunum, SUSPEND_REASON_RESET)) || state == PULSE_LINE)
					cpunum_reset(cpunum);

				/* if we're clearing the line, make sure the CPU is not halted */
				cpunum_resume(cpunum, SUSPEND_REASON_RESET);
			}
		}

		/* special case: HALT */
		else if (line == INPUT_LINE_HALT)
		{
			/* if asserting, halt the CPU */
			if (state == ASSERT_LINE)
				cpunum_suspend(cpunum, SUSPEND_REASON_HALT, 1);

			/* if clearing, unhalt the CPU */
			else if (state == CLEAR_LINE)
				cpunum_resume(cpunum, SUSPEND_REASON_HALT);
		}

		/* all other cases */
		else
		{
			/* switch off the requested state */
			switch (state)
			{
				case PULSE_LINE:
					/* temporary: PULSE_LINE only makes sense for NMI lines on Z80 */
					assert(machine->drv->cpu[cpunum].type != CPU_Z80 || line == INPUT_LINE_NMI);
					activecpu_set_input_line(line, INTERNAL_ASSERT_LINE);
					activecpu_set_input_line(line, INTERNAL_CLEAR_LINE);
					break;

				case HOLD_LINE:
				case ASSERT_LINE:
					activecpu_set_input_line(line, INTERNAL_ASSERT_LINE);
					break;

				case CLEAR_LINE:
					activecpu_set_input_line(line, INTERNAL_CLEAR_LINE);
					break;

				default:
					logerror("cpunum_empty_event_queue cpu #%d, line %d, unknown state %d\n", cpunum, line, state);
			}

			/* generate a trigger to unsuspend any CPUs waiting on the interrupt */
			if (state != CLEAR_LINE)
				cpu_triggerint(cpunum);
		}
	}

	/* swap back */
	cpuintrf_pop_context();

	/* reset counter */
	input_event_index[cpunum][line] = 0;
}