ISA
Class Region

java.lang.Object
  java.util.Observable
      Util.AbstractDataModel
          ISA.Region

All Implemented Interfaces:

DataModel

Direct Known Subclasses:

DataRegion, InstructionRegion

public abstract class Region
extends AbstractDataModel

The code description of a contiguous range of memory. Maintains mapping between memory values and ISA definitions that underly them. Proivdes DataModel interface that keeps Gui's view of ISA information in synch with values in memory.

Nested Class Summary

class	Region.AssemblyString
static interface	Region.ByteLengthChangedListener
class	Region.LabelString
static class	Region.Type

Method Summary

protected void	add(MemoryCell cell) Add cell to region.
void	addByteLengthChangedListener(Region.ByteLengthChangedListener l)
int	byteLength()
boolean	canDeleteRow(int row) Report whether delete of specified row would suceed given the current state of the system.
boolean	canInsertRow(int row) Report whether an insert of the specified row would succeed given the current state of the system.
boolean	deleteRow(int row) Delete row in region.
protected void	fireByteLengthChanged()
int	getAddress()
MemoryCell	getCellForRowIndex(int rowIndex)
int	getRowCount()
int	getRowIndexForAddress(int address)
java.util.Vector<MemoryCell>	getSavableRows()
Region.Type	getType()
boolean	insertRow(int row) Insert new row in region, adding a place-holder cell and adjusting the address of all subsequent cells.
int	length()
protected void	replace(java.util.Vector<MemoryCell> removeCells, java.util.Vector<MemoryCell> addCells)

Methods inherited from class Util.AbstractDataModel

addUndoableEditListener, getColumnClass, getColumnCount, getColumnName, getValueAt, isCellEditable, setValueAt, setValueAt, setValueAtByUser, setValueAtByUser, tellObservers, tellObservers

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

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

Methods inherited from interface Util.DataModel

addObserver

Method Detail

getSavableRows

public java.util.Vector<MemoryCell> getSavableRows()

getType

public Region.Type getType()

length

public int length()

getAddress

public int getAddress()

byteLength

public int byteLength()

getCellForRowIndex

public MemoryCell getCellForRowIndex(int rowIndex)

getRowIndexForAddress

public int getRowIndexForAddress(int address)

insertRow

public boolean insertRow(int row)

Insert new row in region, adding a place-holder cell and adjusting the address of all subsequent cells.

Specified by:

insertRow in interface DataModel

Overrides:

insertRow in class AbstractDataModel

Returns:

true iff row is inserted.

canInsertRow

public boolean canInsertRow(int row)

Report whether an insert of the specified row would succeed given the current state of the system.

Specified by:

canInsertRow in interface DataModel

Overrides:

canInsertRow in class AbstractDataModel

deleteRow

public boolean deleteRow(int row)

Delete row in region.

Specified by:

deleteRow in interface DataModel

Overrides:

deleteRow in class AbstractDataModel

Returns:

true iff row is deleted.

canDeleteRow

public boolean canDeleteRow(int row)

Report whether delete of specified row would suceed given the current state of the system.

Specified by:

canDeleteRow in interface DataModel

Overrides:

canDeleteRow in class AbstractDataModel

add

protected void add(MemoryCell cell)

Add cell to region. Ensure that memory reflects the value in the cell. If the cell is already in the region, writing to memory will cause an up call to the region that will update the cell to reflect memory.

replace

protected void replace(java.util.Vector<MemoryCell> removeCells,
                       java.util.Vector<MemoryCell> addCells)

getRowCount

public int getRowCount()

Specified by:

getRowCount in interface DataModel

Overrides:

getRowCount in class AbstractDataModel

addByteLengthChangedListener

public void addByteLengthChangedListener(Region.ByteLengthChangedListener l)

fireByteLengthChanged

protected void fireByteLengthChanged()