uk.ac.man.cs.rainbow.simulator.rasm
Class GetArg

java.lang.Object
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  +--uk.ac.man.cs.rainbow.simulator.Instruction
        |
        +--uk.ac.man.cs.rainbow.simulator.rasm.GetArg

All Implemented Interfaces:

Serializable

public class GetArg

extends Instruction

Push a copy of the i'th value (based at 0) of the stack frame onto the top of the stack. Intended for accessing arguments passed to functions and local variables. Takes an optional argument that allows the direct specification of an index to get (bypassing the use of the stack.)

v₀ ... v_i ... v_n i v₀ ... v_i ... v_n v_i

See Also:

PutArg, Serialized Form

Inner classes inherited from class uk.ac.man.cs.rainbow.simulator.Instruction

Instruction.MACRO

Constructor Summary

GetArg()

GetArg(int index)

GetArg(int index, RASMCode code)

GetArg(RASMCode code)

Method Summary

protected boolean	execute(RASMThread thread) Make this instruction execute in the given context.
String	toString()

Methods inherited from class uk.ac.man.cs.rainbow.simulator.Instruction

addClass, getInstruction, getInstruction, getInstruction

Methods inherited from class java.lang.Object

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

Constructor Detail

GetArg

public GetArg()

GetArg

public GetArg(int index)

GetArg

public GetArg(RASMCode code)

GetArg

public GetArg(int index,
              RASMCode code)

Method Detail

toString

public String toString()

Overrides:

toString in class Object

execute

protected boolean execute(RASMThread thread)
                   throws RASMThread.Exception

Description copied from class: Instruction

Make this instruction execute in the given context.

Overrides:

execute in class Instruction

Following copied from class: uk.ac.man.cs.rainbow.simulator.Instruction

Throws:

RainbowException - All sorts of things can go wrong during execution...