ptolemy.actor.lib.vhdl
Class Multiplexor

java.lang.Object
  extended by ptolemy.kernel.util.NamedObj
      extended by ptolemy.kernel.InstantiableNamedObj
          extended by ptolemy.kernel.Entity
              extended by ptolemy.kernel.ComponentEntity
                  extended by ptolemy.actor.AtomicActor
                      extended by ptolemy.actor.TypedAtomicActor
                          extended by ptolemy.actor.lib.vhdl.FixTransformer
                              extended by ptolemy.actor.lib.vhdl.SynchronousFixTransformer
                                  extended by ptolemy.actor.lib.vhdl.Multiplexor
All Implemented Interfaces:
java.io.Serializable, java.lang.Cloneable, Actor, Executable, FiringsRecordable, Initializable, TypedActor, Changeable, Debuggable, DebugListener, Derivable, Instantiable, ModelErrorHandler, MoMLExportable, Moveable, Nameable

public class Multiplexor
extends SynchronousFixTransformer

Produce an output token on each firing with a FixPoint value that is equal to the slicing of the bits of the input token value. The bit width of the output token value is determined by taking the difference of parameters start and end. The width parameter specifies the bit width of the input value. The output FixPoint value is unsigned, and all its bits are integer bits. The input can have any scalar type.

Since:
Ptolemy II 6.0
Version:
$Id: Multiplexor.java 57040 2010-01-27 20:52:32Z cxh $
Author:
Man-Kit Leung
See Also:
Serialized Form
Accepted Rating:
Red (mankit)
Proposed Rating:
Red (mankit)

Nested Class Summary
 
Nested classes/interfaces inherited from class ptolemy.kernel.Entity
Entity.ContainedObjectsIterator
 
Field Summary
private  int _channel
          The most recently read select input.
 TypedIOPort A
          Input for the first data token stream.
 TypedIOPort B
          Input for the second data token stream.
 TypedIOPort select
          Input for select one of the inputs.
 
Fields inherited from class ptolemy.actor.lib.vhdl.SynchronousFixTransformer
initialValue, latency
 
Fields inherited from class ptolemy.actor.lib.vhdl.FixTransformer
output
 
Fields inherited from class ptolemy.actor.AtomicActor
_actorFiringListeners, _initializables, _notifyingActorFiring, _stopRequested
 
Fields inherited from class ptolemy.kernel.util.NamedObj
_changeListeners, _changeLock, _changeRequests, _debugging, _debugListeners, _elementName, _isPersistent, _verbose, _workspace, ATTRIBUTES, CLASSNAME, COMPLETE, CONTENTS, DEEP, FULLNAME, LINKS
 
Fields inherited from interface ptolemy.actor.Executable
COMPLETED, NOT_READY, STOP_ITERATING
 
Constructor Summary
Multiplexor(CompositeEntity container, java.lang.String name)
          Construct an actor with the given container and name.
 
Method Summary
 void fire()
          output a consecutive subset of the input bits.
 void initialize()
          Initialize to the default, which is to use channel zero.
 void preinitialize()
          Override the base class to declare that the A, B and select ports do not depend on the output in a firing.
 
Methods inherited from class ptolemy.actor.lib.vhdl.SynchronousFixTransformer
attributeChanged, isStrict
 
Methods inherited from class ptolemy.actor.lib.vhdl.FixTransformer
_checkFixMaxValue, _checkFixTokenWidth, _setAndHideQuantizationParameters, _setQuantizationParameters, _showQuantizationParameters, getPortPrecision, newFixOutputPort, sendOutput
 
Methods inherited from class ptolemy.actor.TypedAtomicActor
_addPort, _fireAt, _fireAt, attributeTypeChanged, clone, newPort, typeConstraintList, typeConstraints
 
Methods inherited from class ptolemy.actor.AtomicActor
_actorFiring, _actorFiring, addActorFiringListener, addInitializable, clone, connectionsChanged, createReceivers, declareDelayDependency, getCausalityInterface, getDirector, getExecutiveDirector, getManager, inputPortList, isFireFunctional, iterate, newReceiver, outputPortList, postfire, prefire, pruneDependencies, recordFiring, removeActorFiringListener, removeDependency, removeInitializable, setContainer, stop, stopFire, terminate, wrapup
 
Methods inherited from class ptolemy.kernel.ComponentEntity
_adjustDeferrals, _checkContainer, _getContainedObject, _propagateExistence, getContainer, instantiate, isAtomic, isOpaque, moveDown, moveToFirst, moveToIndex, moveToLast, moveUp, propagateExistence, setName
 
Methods inherited from class ptolemy.kernel.Entity
_description, _exportMoMLContents, _removePort, _validateSettables, connectedPortList, connectedPorts, containedObjectsIterator, getAttribute, getPort, getPorts, linkedRelationList, linkedRelations, portList, removeAllPorts, setClassDefinition, uniqueName
 
Methods inherited from class ptolemy.kernel.InstantiableNamedObj
_setParent, exportMoML, getChildren, getElementName, getParent, getPrototypeList, isClassDefinition, isWithinClassDefinition
 
Methods inherited from class ptolemy.kernel.util.NamedObj
_addAttribute, _adjustOverride, _attachText, _cloneFixAttributeFields, _debug, _debug, _debug, _debug, _debug, _getIndentPrefix, _isMoMLSuppressed, _markContentsDerived, _propagateValue, _recordDecoratedAttributes, _removeAttribute, _splitName, _stripNumericSuffix, addChangeListener, addDebugListener, attributeList, attributeList, deepContains, depthInHierarchy, description, description, event, executeChangeRequests, exportMoML, exportMoML, exportMoML, exportMoML, exportMoMLPlain, getAttribute, getAttributes, getChangeListeners, getClassName, getDecoratorAttribute, getDecoratorAttributes, getDerivedLevel, getDerivedList, getDisplayName, getFullName, getModelErrorHandler, getName, getName, getSource, handleModelError, isDeferringChangeRequests, isOverridden, isPersistent, lazyContainedObjectsIterator, message, propagateValue, propagateValues, removeChangeListener, removeDebugListener, requestChange, setClassName, setDeferringChangeRequests, setDerivedLevel, setDisplayName, setModelErrorHandler, setPersistent, setSource, sortContainedObjects, toplevel, toString, validateSettables, workspace
 
Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface ptolemy.actor.Actor
createReceivers, getCausalityInterface, getDirector, getExecutiveDirector, getManager, inputPortList, newReceiver, outputPortList
 
Methods inherited from interface ptolemy.actor.Executable
isFireFunctional, iterate, postfire, prefire, stop, stopFire, terminate
 
Methods inherited from interface ptolemy.actor.Initializable
addInitializable, removeInitializable, wrapup
 
Methods inherited from interface ptolemy.kernel.util.Nameable
description, getContainer, getDisplayName, getFullName, getName, getName, setName
 
Methods inherited from interface ptolemy.kernel.util.Derivable
getDerivedLevel, getDerivedList, propagateValue
 

Field Detail

A

public TypedIOPort A
Input for the first data token stream. This is a port of fix point type.


B

public TypedIOPort B
Input for the second data token stream. This is a port of fix point type.


select

public TypedIOPort select
Input for select one of the inputs. This port has int type.


_channel

private int _channel
The most recently read select input.

Constructor Detail

Multiplexor

public Multiplexor(CompositeEntity container,
                   java.lang.String name)
            throws NameDuplicationException,
                   IllegalActionException
Construct an actor with the given container and name.

Parameters:
container - The container.
name - The name of this actor.
Throws:
IllegalActionException - If the actor cannot be contained by the proposed container.
NameDuplicationException - If the container already has an actor with this name.
Method Detail

fire

public void fire()
          throws IllegalActionException
output a consecutive subset of the input bits. If there is no input, then produce no output.

Specified by:
fire in interface Executable
Overrides:
fire in class AtomicActor
Throws:
IllegalActionException - If there is no director.

initialize

public void initialize()
                throws IllegalActionException
Initialize to the default, which is to use channel zero.

Specified by:
initialize in interface Initializable
Overrides:
initialize in class SynchronousFixTransformer
Throws:
IllegalActionException - If there is no director.

preinitialize

public void preinitialize()
                   throws IllegalActionException
Override the base class to declare that the A, B and select ports do not depend on the output in a firing.

Specified by:
preinitialize in interface Initializable
Overrides:
preinitialize in class SynchronousFixTransformer
Throws:
IllegalActionException - Not thrown in this base class.