avrora.sim.util
Class Counter

java.lang.Object
  avrora.sim.Simulator.Probe.Empty
      avrora.sim.util.Counter

All Implemented Interfaces:

Simulator.Probe

public class Counter

extends Simulator.Probe.Empty

The Counter class is a utility for profiling programs. It simply increments an internal counter every time the probe fires. This very simple type of probe can be used for profiling counts of basic blocks, interrupt routines, particular methods, inner loops, or even to count the total number of instructions executed in the program.

Nested Class Summary

Nested classes inherited from class avrora.sim.Simulator.Probe

Simulator.Probe.Empty

Field Summary

long	count The count field stores the accumulation of all events received by this counter.

Constructor Summary

Counter()

Method Summary

void	fireBefore(State state, int pc) The fireBefore() method is called before the probed instruction executes.

Methods inherited from class avrora.sim.Simulator.Probe.Empty

fireAfter

Methods inherited from class java.lang.Object

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

Field Detail

count

public long count

The count field stores the accumulation of all events received by this counter. This field is incremented once each time the fireBefore() method is invoked.

Constructor Detail

Counter

public Counter()

Method Detail

fireBefore

public void fireBefore(State state,
                       int pc)

The fireBefore() method is called before the probed instruction executes. In the implementation of the counter, it simply updates the internal counter.

Specified by:

fireBefore in interface Simulator.Probe

Overrides:

fireBefore in class Simulator.Probe.Empty

Parameters:

state - the state of the simulation

pc - the address at which this instruction resides