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

java.lang.Object
  com.chaoswg.xtc4y.classdesc.code.instructions.Instruction
      com.chaoswg.xtc4y.classdesc.code.instructions.BinaryInstruction

Direct Known Subclasses:

ShortCPRefInstruction

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public class BinaryInstruction

extends Instruction

A binary instruction consists of a command and one one byte operand, therefore its size is 2 bytes

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Field Summary
static byte	ALOAD           Load a local object variable by index
static byte	ASTORE           store a local object variable at index
static byte	BIPUSH           push a byte onto the stack
static byte	DLOAD           Load a local double variable by index
static byte	DSTORE           store a local double variable at index
static byte	FLOAD           Load a local float variable by index
static byte	FSTORE           store a local float variable at index
static byte	ILOAD           Load a local int variable by index
static byte	ISTORE           store a local int variable at index
static byte	LLOAD           Load a local long variable by index
static byte	LSTORE           store a local long variable at index
private  byte	operand
static byte	RET           Return from a subroutine call reading the return address from the loca variable

 

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

 

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

 

Method Summary
int	getNumberOfUsedBytes()
protected  byte	getOperand(com.chaoswg.xtc4y.classdesc.ConstantPool cp)
protected  void	handleOperand(byte operand, com.chaoswg.xtc4y.classdesc.ConstantPool cp)           Handle operand.
java.lang.String	toString()           Write code in a readable way
void	write(java.io.DataOutputStream dos, com.chaoswg.xtc4y.classdesc.ConstantPool cp)           Write the instruction onto the DataOutputStream, using the constant pool to register variables.

 

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

getCommand, getIndex, getOpcode, resolveIndices, setIndex

 

Methods inherited from class java.lang.Object

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

 

Field Detail

operand

private byte operand

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BIPUSH

public static final byte BIPUSH

push a byte onto the stack

See Also:

Constant Field Values

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ILOAD

public static final byte ILOAD

Load a local int variable by index

See Also:

Constant Field Values

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LLOAD

public static final byte LLOAD

Load a local long variable by index

See Also:

Constant Field Values

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FLOAD

public static final byte FLOAD

Load a local float variable by index

See Also:

Constant Field Values

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DLOAD

public static final byte DLOAD

Load a local double variable by index

See Also:

Constant Field Values

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ALOAD

public static final byte ALOAD

Load a local object variable by index

See Also:

Constant Field Values

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ISTORE

public static final byte ISTORE

store a local int variable at index

See Also:

Constant Field Values

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LSTORE

public static final byte LSTORE

store a local long variable at index

See Also:

Constant Field Values

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FSTORE

public static final byte FSTORE

store a local float variable at index

See Also:

Constant Field Values

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DSTORE

public static final byte DSTORE

store a local double variable at index

See Also:

Constant Field Values

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ASTORE

public static final byte ASTORE

store a local object variable at index

See Also:

Constant Field Values

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RET

public static final byte RET

Return from a subroutine call reading the return address from the loca variable

See Also:

Constant Field Values

Constructor Detail

BinaryInstruction

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

Creates an BinaryInstruction and initializes it from a DataInputStream. the operand is read from the stream and provided to extending classes for a further handling of it

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BinaryInstruction

public BinaryInstruction(byte command)

Create a new binary instruction with a command and the byte value as operand

Method Detail

handleOperand

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

Handle operand. By default, the operands value is stored. Another behaviour may be implemented in an extending class

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write

public final void write(java.io.DataOutputStream dos,
                        com.chaoswg.xtc4y.classdesc.ConstantPool cp)
                 throws java.io.IOException

Write the instruction onto the DataOutputStream, using the constant pool to register variables. .

Overrides:

write in class Instruction

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getOperand

protected byte getOperand(com.chaoswg.xtc4y.classdesc.ConstantPool cp)

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getNumberOfUsedBytes

public final int getNumberOfUsedBytes()

Specified by:

getNumberOfUsedBytes in class Instruction

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toString

public java.lang.String toString()

Write code in a readable way

Overrides:

toString in class Instruction

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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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