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## avrora.sim
Interface Simulator.Probe

All Known Implementing Classes:
  BranchCounter, Counter, MulticastProbe, ProgramProfiler, SequenceProbe, Simulator.InstructionCountTimeout

Enclosing interface:
  Simulator

public static interface Simulator.Probe

The `Simulator.Probe` interface represents a programmer-defined probe that can be inserted at particular instructions or at every instruction. This probe allows execution of client code for profiling, analysis, or program understanding. A method that is invoked before an instruction is executed and a method that is invoked after the instruction is executed are provided, although most probes will use only one of these methods.

Method Summary
`void` | `fireAfter(Instr i, int address, State state)` The `fireAfter()` method is called after the probed instruction executes.
`void` | `fireBefore(Instr i, int address, State state)` The `fireBefore()` method is called before the probed instruction executes.

Method Detail

### fireBefore

    public void fireBefore(Instr i,
                           int address,
                           State state)

  The `fireBefore()` method is called before the probed instruction executes.

  Parameters:
    `i` - the instruction being probed
    `address` - the address at which this instruction resides
    `state` - the state of the simulation

### fireAfter

    public void fireAfter(Instr i,
                          int address,
                          State state)

  The `fireAfter()` method is called after the probed instruction executes.

  Parameters:
    `i` - the instruction being probed
    `address` - the address at which this instruction resides
    `state` - the state of the simulation

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