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com.chaoswg.xtc4y.classdesc.code.instructions
Class JumpInstruction  

java.lang.Object
  com.chaoswg.xtc4y.classdesc.code.instructions.Instruction
      com.chaoswg.xtc4y.classdesc.code.instructions.WideBinaryInstruction
          com.chaoswg.xtc4y.classdesc.code.instructions.JumpInstruction

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public class JumpInstruction

extends WideBinaryInstruction

a jump instruction refers to another instruction if expression evaluates to true

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Field Summary
static byte	GOTO           unconditional jump
static byte	GOTO_W           a wide goto jump
static byte	IF_ACMPEQ           Jump if the last to objects on the stack are equals
static byte	IF_ACMPNE           Jump if the last to objects on the stack are not equals
static byte	IF_ICMPEQ           Jump if the last to int value on the stack are equals
static byte	IF_ICMPGE           Jump if the second last int value on the stack is greater or equals the last one
static byte	IF_ICMPGT           Jump if the second last int value on the stack is greater than the last one
static byte	IF_ICMPLE           Jump if the second last int value on the stack is lower or equals the last one
static byte	IF_ICMPLT           Jump if the second last int value on the stack is lower than the last one
static byte	IF_ICMPNE           Jump if the last to int value on the stack are not equals
static byte	IFEQ           Jump if the last two value on the stack are equals
static byte	IFGE           Jump if the second last value on the stack is greater or equals the last one
static byte	IFGT           Jump if the second last value on the stack is greater than the last one
static byte	IFLE           Jump if the second last value on the stack is lower or equals the last one
static byte	IFLT           Jump if the second last value on the stack is lower than the last one
static byte	IFNE           Jump if the last two value on the stack are not equals
static byte	IFNONNULL           jump if not null
static byte	IFNULL           jump if null
static byte	JSR           jump to subroutine
static byte	JSR_W           a wide jsr jump
private  Instruction	target
private  short	targetIndex

 

Fields inherited from class com.chaoswg.xtc4y.classdesc.code.instructions.WideBinaryInstruction

NEWARRAY, SIPUSH

 

Fields inherited from class com.chaoswg.xtc4y.classdesc.code.instructions.Instruction

 

Constructor Summary
protected	JumpInstruction(byte command, java.io.DataInputStream dis, com.chaoswg.xtc4y.classdesc.ConstantPool cp)           Creates an JumpInstruction and initializes it from a DataInputStream
	JumpInstruction(byte command, Instruction target)           Create a new jump instruction with a command and the target instruction to jump as operand

 

Method Summary
protected  short	getOperand(com.chaoswg.xtc4y.classdesc.ConstantPool cp)           Get index of instruction
protected  void	handleOperand(short operand, com.chaoswg.xtc4y.classdesc.ConstantPool cp)           Store the index for a later resolving
void	resolveIndices(com.chaoswg.xtc4y.classdesc.code.Code code)           Resolve indices of instructions.

 

Methods inherited from class com.chaoswg.xtc4y.classdesc.code.instructions.WideBinaryInstruction

getNumberOfUsedBytes, toString, write

 

Methods inherited from class com.chaoswg.xtc4y.classdesc.code.instructions.Instruction

getCommand, getIndex, getOpcode, setIndex

 

Methods inherited from class java.lang.Object

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

 

Field Detail

target

private Instruction target

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targetIndex

private short targetIndex

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IFEQ

public static final byte IFEQ

Jump if the last two value on the stack are equals

See Also:

Constant Field Values

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IFNE

public static final byte IFNE

Jump if the last two value on the stack are not equals

See Also:

Constant Field Values

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IFLT

public static final byte IFLT

Jump if the second last value on the stack is lower than the last one

See Also:

Constant Field Values

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IFGE

public static final byte IFGE

Jump if the second last value on the stack is greater or equals the last one

See Also:

Constant Field Values

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IFGT

public static final byte IFGT

Jump if the second last value on the stack is greater than the last one

See Also:

Constant Field Values

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IFLE

public static final byte IFLE

Jump if the second last value on the stack is lower or equals the last one

See Also:

Constant Field Values

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IF_ICMPEQ

public static final byte IF_ICMPEQ

Jump if the last to int value on the stack are equals

See Also:

Constant Field Values

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IF_ICMPNE

public static final byte IF_ICMPNE

Jump if the last to int value on the stack are not equals

See Also:

Constant Field Values

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IF_ICMPLT

public static final byte IF_ICMPLT

Jump if the second last int value on the stack is lower than the last one

See Also:

Constant Field Values

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IF_ICMPGE

public static final byte IF_ICMPGE

Jump if the second last int value on the stack is greater or equals the last one

See Also:

Constant Field Values

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IF_ICMPGT

public static final byte IF_ICMPGT

Jump if the second last int value on the stack is greater than the last one

See Also:

Constant Field Values

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IF_ICMPLE

public static final byte IF_ICMPLE

Jump if the second last int value on the stack is lower or equals the last one

See Also:

Constant Field Values

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IF_ACMPEQ

public static final byte IF_ACMPEQ

Jump if the last to objects on the stack are equals

See Also:

Constant Field Values

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IF_ACMPNE

public static final byte IF_ACMPNE

Jump if the last to objects on the stack are not equals

See Also:

Constant Field Values

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GOTO

public static final byte GOTO

unconditional jump

See Also:

Constant Field Values

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JSR

public static final byte JSR

jump to subroutine

See Also:

Constant Field Values

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IFNULL

public static final byte IFNULL

jump if null

See Also:

Constant Field Values

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IFNONNULL

public static final byte IFNONNULL

jump if not null

See Also:

Constant Field Values

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GOTO_W

public static final byte GOTO_W

a wide goto jump

See Also:

Constant Field Values

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JSR_W

public static final byte JSR_W

a wide jsr jump

See Also:

Constant Field Values

Constructor Detail

JumpInstruction

protected JumpInstruction(byte command,
                          java.io.DataInputStream dis,
                          com.chaoswg.xtc4y.classdesc.ConstantPool cp)
                   throws java.io.IOException

Creates an JumpInstruction and initializes it from a DataInputStream

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JumpInstruction

public JumpInstruction(byte command,
                       Instruction target)

Create a new jump instruction with a command and the target instruction to jump as operand

Method Detail

handleOperand

protected final void handleOperand(short operand,
                                   com.chaoswg.xtc4y.classdesc.ConstantPool cp)

Store the index for a later resolving

Overrides:

handleOperand in class WideBinaryInstruction

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resolveIndices

public void resolveIndices(com.chaoswg.xtc4y.classdesc.code.Code code)

Resolve indices of instructions.

Overrides:

resolveIndices in class Instruction

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getOperand

protected final short getOperand(com.chaoswg.xtc4y.classdesc.ConstantPool cp)

Get index of instruction

Overrides:

getOperand in class WideBinaryInstruction

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> com >> chaoswg >> xtc4y >> classdesc >> code >> [ instructions overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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