avrora.sim
Interface Simulator.Interrupt

All Known Implementing Classes:

ATMega128L.SimImpl.ADC.ControlRegister.ADCInterrupt, ATMegaFamily.MaskableInterrupt

Enclosing interface:

Simulator

public static interface Simulator.Interrupt

The Interrupt interface represents the behavior of an interrupt (how it manipulates the state of the processor) when it is posted and when it is triggered (handler is executed by the processor). For example, an external interrupt, when posted, sets a bit in an IO register, and if the interrupt is not masked, will add it to the pending interrupts on the processor. When the interrupt head, it remains flagged (the bit in the IO register remains on). Some interrupts clear bits in IO registers on triggered (e.g. timer interrupts). This interface allows both of these behaviors to be implemented.

Method Summary

void	fire() The fire() method is called by the simulator when the interrupt is about to be processed (i.e. it has been posted, and is not masked).
void	force() The force() method is called by the simulator when an interrupt is being forced by an outside source (i.e. not of the simulation).

Method Detail

force

public void force()

The force() method is called by the simulator when an interrupt is being forced by an outside source (i.e. not of the simulation). For example, when stress testing a program by bombarding it with interrupts, this method would be used.

fire

public void fire()

The fire() method is called by the simulator when the interrupt is about to be processed (i.e. it has been posted, and is not masked). This method is called just before control is transferred to the interrupt handler.