jef.dna.instructions.impl
Class FCmpl

java.lang.Object
  jef.dna.instructions.impl.InstructionAncestor
      jef.dna.instructions.impl.FCmpl

All Implemented Interfaces:

java.lang.Cloneable, Instruction, BytesCountable

public class FCmpl
extends InstructionAncestor

This class maps the FCMPL bytecode instruction which preforms a comparison between two float values. These values are popped from the operand stack, compared and the result is pushed on the top of the operand stack. For further information and differences with the FCMPG instruction, please look at the JVM Official Specification.

Author:

ggiovanzana

Field Summary

Fields inherited from class jef.dna.instructions.impl.InstructionAncestor

logger, opCode, operands, operandsCount

Constructor Summary

FCmpl()
Creates a new instance of FCmpl

Method Summary

int	updateRefs(int offset) This method must implement the logic necessary to update all the references to constant pool table's entries contained within the bytecode instruction.

Methods inherited from class jef.dna.instructions.impl.InstructionAncestor

clone, fromArray, getBytesCount, getOpCode, getOperands, getOperandsCount, setOpCode, setOperands, setOperandsCountPosticipated, toArray

Methods inherited from class java.lang.Object

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

Constructor Detail

FCmpl

public FCmpl()

Creates a new instance of FCmpl

Method Detail

updateRefs

public int updateRefs(int offset)

This method must implement the logic necessary to update all the references to constant pool table's entries contained within the bytecode instruction.

Specified by:

updateRefs in interface Instruction

Overrides:

updateRefs in class InstructionAncestor

Parameters:

offset - The offset used for updating expressed as number of cpt's entries to be skipped

Returns:

int The number of processed words within the current bytecode instruction