com.tapina.robe.runtime.instruction
Class DataTransferInstruction

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

public final class DataTransferInstruction

extends Instruction

Created by IntelliJ IDEA. User: gareth Date: Sep 2, 2003 Time: 9:15:17 AM

Field Summary

static Transfer	LDR
static Transfer	LDRB
static Transfer	STR
static Transfer	STRB

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

count

Constructor Summary

DataTransferInstruction(Condition condition, Transfer transfer, int destinationRegister, IndexedAddressSource addressSource)

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

Field Detail

LDR

public static final Transfer LDR

LDRB

public static final Transfer LDRB

STR

public static final Transfer STR

STRB

public static final Transfer STRB

Constructor Detail

DataTransferInstruction

public DataTransferInstruction(Condition condition,
                               Transfer transfer,
                               int destinationRegister,
                               IndexedAddressSource addressSource)

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