Class Instruction

java.lang.Object
  Instruction

Direct Known Subclasses:

Instruction1, Instruction2, Instruction3

public abstract class Instruction
extends java.lang.Object

Base class for PicoBlaze instruction factory.

Constructor Summary

Instruction(java.lang.String[] opname, int[] opcode)
Create new instruction initializing opcode map.

Method Summary

abstract int	code(java.lang.String n, java.util.Vector a, Environment e) Code instruction.
static int	translateAction(java.lang.String a) Convert action name to value.
static int	translateCondition(java.lang.String c) Convert condition name to value.

Methods inherited from class java.lang.Object

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

Constructor Detail

Instruction

public Instruction(java.lang.String[] opname,
                   int[] opcode)

Create new instruction initializing opcode map.

Parameters:

opname - opcode names array

opcode - opcode values array

Method Detail

code

public abstract int code(java.lang.String n,
                         java.util.Vector a,
                         Environment e)

Code instruction.

Parameters:

n - instruction name

a - instruction argument list

e - assembly environment

Returns:

opcode value

translateCondition

public static int translateCondition(java.lang.String c)

Convert condition name to value.

Parameters:

c - condition name

Returns:

condition value

translateAction

public static int translateAction(java.lang.String a)

Convert action name to value.

Parameters:

a - action name

Returns:

action value