uk.ac.man.cs.rainbow.simulator
Class RASM.BinaryIntFunction

java.lang.Object
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  +--uk.ac.man.cs.rainbow.simulator.Instruction
        |
        +--uk.ac.man.cs.rainbow.simulator.RASM.BinaryIntFunction

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

Add, Div, Mod, Mult, Shl, Shr, Shrz, Sub

Enclosing class:

RASM

public abstract static class RASM.BinaryIntFunction

extends Instruction

Binary operations over integers. Factorises out the actual stack manipulation code as that is common across all the variants. All are of the form:

x y op(x,y)

See Also:

RASMThread.popInt(), RASMThread.push(int), Serialized Form

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

Instruction.MACRO

Constructor Summary

RASM.BinaryIntFunction()

RASM.BinaryIntFunction(RASMCode code)

Method Summary

protected abstract int	execute(int x, int y) Perform an integer binary operation.
protected boolean	execute(RASMThread thread) Make this instruction execute in the given context.

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, toString, wait, wait, wait

Constructor Detail

RASM.BinaryIntFunction

public RASM.BinaryIntFunction()

RASM.BinaryIntFunction

public RASM.BinaryIntFunction(RASMCode code)

Method Detail

execute

protected abstract int execute(int x,
                               int y)
                        throws RASMThread.Exception

Perform an integer binary operation.

Parameters:

x - The first (lower on the stack) value argument.

y - The second (higher on the stack) value argument.

Returns:

The result of the operation.

execute

protected final 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...