com.cmpware.fastmodel
Class Instruction

java.lang.Object
  com.cmpware.fastmodel.Instruction

public class Instruction
extends java.lang.Object

This class defines an instruction used in the FastModel. It is intended to be extended and its methods over-ridden. Typically this class is extended once for each unique instruction 'type'.

Copyright (c) 2006 Cmpware, Inc. All Rights Reserved.

Author:

SAG

Field Summary

protected long	addr The address of this instruction instance
protected int	code The instruction code
static java.lang.String	copyright Copyright string
protected Decoder	decoder The instruction decoder
protected Function	function The instruction Function
protected java.lang.String	name The instruction name
Instruction	next The next cached instruction
protected long	profile The profile count

Constructor Summary

Instruction(java.lang.String name, Decoder decoder, Function function)
This constructor initializes an instruction.

Instruction(java.lang.String name, Decoder decoder, Function function, int code)
This constructor initializes an instruction.

Method Summary

static Instruction

newInstance(Instruction i, FastModel fastModel) This static method returns a copy of an Instruction, with a new Function object.

Methods inherited from class java.lang.Object

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

Field Detail

copyright

public static final java.lang.String copyright

Copyright string

See Also:

Constant Field Values

next

public Instruction next

The next cached instruction

addr

protected long addr

The address of this instruction instance

profile

protected long profile

The profile count

code

protected int code

The instruction code

name

protected java.lang.String name

The instruction name

decoder

protected Decoder decoder

The instruction decoder

function

protected Function function

The instruction Function

Constructor Detail

Instruction

public Instruction(java.lang.String name,
                   Decoder decoder,
                   Function function)

This constructor initializes an instruction.

Parameters:

name - the instruction name.

decoder - the instruction decoder.

function - the instruction functionality.

Instruction

public Instruction(java.lang.String name,
                   Decoder decoder,
                   Function function,
                   int code)

This constructor initializes an instruction.

Parameters:

name - the instruction name.

decoder - the instruction decoder.

function - the instruction functionality.

code - the instruction ID code.

Method Detail

newInstance

public static Instruction newInstance(Instruction i,
                                      FastModel fastModel)

This static method returns a copy of an Instruction, with a new Function object. This is used in the FastModel caching.

Parameters:

i - The instruction to be copied.

fastModel - The FastModel processor class for this instruction.

Returns:

a new Instruction object with a new Function object is returned. If an error occurs, a null is returned.