avrora.syntax
Class Item

java.lang.Object
  avrora.syntax.Item

Direct Known Subclasses:

Item.InitializedData, Item.Instruction, Item.Label, Item.NamedConstant, Item.RegisterAlias, Item.UninitializedData

public abstract class Item

extends java.lang.Object

The Item class represents either an assembler directive, an instruction, or a sequence of initialized data with a source program.

Nested Class Summary

static class	Item.InitializedData The InitializedData item represents a section of programmer-declared initialized data within the program.
static class	Item.Instruction The Instruction item in a source program represents an instruction that must be simplified and added to the program.
static class	Item.Label The Label item represents a labelled location in the program that is given a name.
static class	Item.NamedConstant The NamedConstant item in a source program represents a directive that assigns a computable value to a name.
static class	Item.RegisterAlias The RegisterAlias item in a source program represents a directive that adds an alias for a register.
static class	Item.UninitializedData The UnitializedData item represents a declared section of data that is not given a value (a reservation of space).

Field Summary

protected int	byteAddress
protected Module	module
protected Module.Seg	segment

Method Summary

int	itemSize()
abstract void	simplify() The simplify() method reduces any computable constants to values, resolves register aliases, and creates instruction instances within this item, depending on exactly which type of item it is.

Methods inherited from class java.lang.Object

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

Field Detail

module

protected final Module module

segment

protected final Module.Seg segment

byteAddress

protected final int byteAddress

Method Detail

simplify

public abstract void simplify()

The simplify() method reduces any computable constants to values, resolves register aliases, and creates instruction instances within this item, depending on exactly which type of item it is.

itemSize

public int itemSize()