avrora.sim.mcu
Class ATMegaFamily.MaskableInterrupt

java.lang.Object
  avrora.sim.mcu.ATMegaFamily.MaskableInterrupt

All Implemented Interfaces:

Simulator.Interrupt

Enclosing class:

ATMegaFamily

public class ATMegaFamily.MaskableInterrupt

extends java.lang.Object

implements Simulator.Interrupt

The MaskableInterrupt class represents an interrupt that is controlled by two bits in two registers: a mask bit in a mask register and a flag bit in a flag register, at the same offset. When this interrupt fires, it automatically clears the flag bit in the flag register.

Field Summary

protected int	bit
protected ATMegaFamily.FlagRegister	flagRegister
protected int	interruptNumber
protected ATMegaFamily.MaskRegister	maskRegister
protected boolean	sticky

Constructor Summary

ATMegaFamily.MaskableInterrupt(int num, ATMegaFamily.MaskRegister mr, ATMegaFamily.FlagRegister fr, int b, boolean e)

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).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

interruptNumber

protected final int interruptNumber

maskRegister

protected final ATMegaFamily.MaskRegister maskRegister

flagRegister

protected final ATMegaFamily.FlagRegister flagRegister

bit

protected final int bit

sticky

protected final boolean sticky

Constructor Detail

ATMegaFamily.MaskableInterrupt

public ATMegaFamily.MaskableInterrupt(int num,
                                      ATMegaFamily.MaskRegister mr,
                                      ATMegaFamily.FlagRegister fr,
                                      int b,
                                      boolean e)

Method Detail

force

public void force()

Description copied from interface: Simulator.Interrupt

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.

Specified by:

force in interface Simulator.Interrupt

fire

public void fire()

Description copied from interface: Simulator.Interrupt

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.

Specified by:

fire in interface Simulator.Interrupt