com.tapina.robe.runtime.instruction
Class MultiplyInstruction

java.lang.Object
  com.tapina.robe.runtime.Instruction
      com.tapina.robe.runtime.instruction.MultiplyInstruction

Direct Known Subclasses:

MultiplyAccumulateInstruction

public class MultiplyInstruction

extends Instruction

Created by IntelliJ IDEA. User: gareth Date: Sep 2, 2003 Time: 8:07:33 AM

Field Summary

Fields inherited from class com.tapina.robe.runtime.Instruction

count

Constructor Summary

MultiplyInstruction(Condition condition, int destinationRegister, int factorRegister1, int factorRegister2, boolean setConditionCodes)

Method Summary

void	dumpJavaSourceUnconditional(java.io.Writer out)
protected boolean	execute(Environment environment) Try to avoid having much in the way of conditionals in this method - it should execute straight through and be as easily optimised/inlined as possible for speed.

Methods inherited from class com.tapina.robe.runtime.Instruction

checkAndExecute, dumpCondition, dumpJavaSource

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiplyInstruction

public MultiplyInstruction(Condition condition,
                           int destinationRegister,
                           int factorRegister1,
                           int factorRegister2,
                           boolean setConditionCodes)

Method Detail

execute

protected final boolean execute(Environment environment)

Description copied from class: Instruction

Try to avoid having much in the way of conditionals in this method - it should execute straight through and be as easily optimised/inlined as possible for speed. Do all your ifs and buts in the decoder or the constructor to this class.

Specified by:

execute in class Instruction

Parameters:

environment -

Returns:

true if the pipeline should be flushed (i.e. branch has occurred)

dumpJavaSourceUnconditional

public void dumpJavaSourceUnconditional(java.io.Writer out)
                                 throws java.io.IOException

Specified by:

dumpJavaSourceUnconditional in class Instruction

Throws:

java.io.IOException