scale.backend
Class FloatDisplacement

java.lang.Object
  scale.backend.Displacement
      scale.backend.FloatDisplacement

public class FloatDisplacement
extends Displacement

This is a simple displacement where the displacement is a known floating point value.

$Id: FloatDisplacement.java,v 1.3 2007-09-20 18:57:40 burrill Exp $

Copyright 2007 by the Scale Compiler Group,
Department of Computer Science
University of Massachusetts,
Amherst MA. 01003, USA
All Rights Reserved.

Constructor Summary

FloatDisplacement(double displacement)

Method Summary

void	adjust(int adjustment) Adjust the displacement by the specified value.
java.lang.String	assembler(Assembler asm) Generate a String representation that can be used by the assembly code generater.
boolean	equivalent(java.lang.Object o) Return true if the displacements are equivalent.
long	getDisplacement() Return the displacement using a representation of the specified floating-point value according to the IEEE 754 floating-point "double format" bit layout.
double	getDoubleDisplacement() Return the displacement as the floating point value.
boolean	isNumeric() Return true if the displacement can be represented as an integer.
boolean	isZero() Return true if the displacement is zero.
java.lang.String	toString()
Displacement	unique() Returns this.

Methods inherited from class scale.backend.Displacement

created, getBase, isStack, isSymbol, offset

Methods inherited from class java.lang.Object

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

Constructor Detail

FloatDisplacement

public FloatDisplacement(double displacement)

Parameters:

displacement - is an integer value.

Method Detail

getDisplacement

public long getDisplacement()

Return the displacement using a representation of the specified floating-point value according to the IEEE 754 floating-point "double format" bit layout.

Overrides:

getDisplacement in class Displacement

See Also:

Double.doubleToLongBits(double)

getDoubleDisplacement

public double getDoubleDisplacement()

Return the displacement as the floating point value.

adjust

public void adjust(int adjustment)

Adjust the displacement by the specified value.

Overrides:

adjust in class Displacement

isZero

public boolean isZero()

Return true if the displacement is zero.

Overrides:

isZero in class Displacement

isNumeric

public boolean isNumeric()

Return true if the displacement can be represented as an integer.

Overrides:

isNumeric in class Displacement

unique

public Displacement unique()

Returns this.

Specified by:

unique in class Displacement

See Also:

SymbolDisplacement

assembler

public java.lang.String assembler(Assembler asm)

Generate a String representation that can be used by the assembly code generater.

Specified by:

assembler in class Displacement

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

equivalent

public boolean equivalent(java.lang.Object o)

Return true if the displacements are equivalent.

Overrides:

equivalent in class Displacement