edu.arizona.cs.mbel.instructions
Class BGT

java.lang.Object
  edu.arizona.cs.mbel.instructions.Instruction
      edu.arizona.cs.mbel.instructions.BranchInstruction
          edu.arizona.cs.mbel.instructions.BGT

All Implemented Interfaces:

InstructionTargeter, ShortFormInstruction

public class BGT

extends BranchInstruction

Branch on greater than.
Stack transition:
..., value1, value2 --> ...

Field Summary

static int	BGT
static int	BGT_S
static int	BGT_UN
static int	BGT_UN_S
protected static int[]	OPCODE_LIST

Constructor Summary

BGT(boolean shortF, boolean un, InstructionHandle ih)
Makes a BGT object with the given target handle, possibly unsigned or in short form

BGT(int opcode, ClassParser parse)

Method Summary

protected void	emit(ByteBuffer buffer, ClassEmitter emitter) Writes the instruction to the given buffer in raw byte form
boolean	equals(java.lang.Object o)
int	getLength() Returns the length in bytes of this instruction, as would be found on disk.
java.lang.String	getName() Returns the string representation of this instruction (may vary instance-to-instance)
boolean	isShort()
boolean	isUnsignedOrUnordered()

Methods inherited from class edu.arizona.cs.mbel.instructions.BranchInstruction

containsTarget, getTarget, getTargetHandle, setTarget, setTargetHandle, updateTarget

Methods inherited from class edu.arizona.cs.mbel.instructions.Instruction

getOpcode, readInstruction, toString

Methods inherited from class java.lang.Object

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

Field Detail

BGT

public static final int BGT

See Also:

Constant Field Values

BGT_S

public static final int BGT_S

See Also:

Constant Field Values

BGT_UN

public static final int BGT_UN

See Also:

Constant Field Values

BGT_UN_S

public static final int BGT_UN_S

See Also:

Constant Field Values

OPCODE_LIST

protected static final int[] OPCODE_LIST

Constructor Detail

BGT

public BGT(boolean shortF,
           boolean un,
           InstructionHandle ih)
    throws InstructionInitException

Makes a BGT object with the given target handle, possibly unsigned or in short form

Parameters:

shortF - true iff this is a short form instruction

un - true iff this is an unsigned comparison

BGT

public BGT(int opcode,
           ClassParser parse)
    throws java.io.IOException,
           InstructionInitException

Method Detail

isShort

public boolean isShort()

isUnsignedOrUnordered

public boolean isUnsignedOrUnordered()

getName

public java.lang.String getName()

Description copied from class: Instruction

Returns the string representation of this instruction (may vary instance-to-instance)

Specified by:

getName in class Instruction

Returns:

a string representing this instruction (i.e. "cpblk")

getLength

public int getLength()

Description copied from class: Instruction

Returns the length in bytes of this instruction, as would be found on disk. This value includes any prefixes prepended to this instruction.

Overrides:

getLength in class Instruction

emit

protected void emit(ByteBuffer buffer,
                    ClassEmitter emitter)

Description copied from class: Instruction

Writes the instruction to the given buffer in raw byte form

Overrides:

emit in class Instruction

Parameters:

buffer - the buffer to write to

emitter - a ClassEmitter for reconciling references to tokens

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class BranchInstruction