Package ptolemy.actor.lib.vhdl

Class Multiplexor

java.lang.Object

ptolemy.kernel.util.NamedObj

ptolemy.kernel.InstantiableNamedObj

ptolemy.kernel.Entity<T>

ptolemy.kernel.ComponentEntity<T>

ptolemy.actor.AtomicActor<TypedIOPort>

ptolemy.actor.TypedAtomicActor

ptolemy.actor.lib.vhdl.FixTransformer

ptolemy.actor.lib.vhdl.SynchronousFixTransformer

ptolemy.actor.lib.vhdl.Multiplexor

All Implemented Interfaces:

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:

$Id$

Author:

Man-Kit Leung

Pt.AcceptedRating:

Red (mankit)

Pt.ProposedRating:

Red (mankit)

Nested Class Summary

Nested classes/interfaces inherited from class ptolemy.kernel.Entity

Entity.ContainedObjectsIterator

Field Summary

Fields

Modifier and Type	Field	Description
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.TypedAtomicActor

_typesValid

Fields inherited from class ptolemy.actor.AtomicActor

_actorFiringListeners, _initializables, _notifyingActorFiring, _stopRequested

Fields inherited from class ptolemy.kernel.util.NamedObj

_changeListeners, _changeLock, _changeRequests, _debugging, _debugListeners, _deferChangeRequests, _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

Constructors

Constructor	Description
Multiplexor(CompositeEntity container, java.lang.String name)	Construct an actor with the given container and name.

Method Summary

Modifier and Type	Method	Description
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

_containedTypeConstraints, _customTypeConstraints, _defaultTypeConstraints, _fireAt, _fireAt, attributeTypeChanged, clone, clone, isBackwardTypeInferenceEnabled, newPort, typeConstraintList, typeConstraints

Methods inherited from class ptolemy.actor.AtomicActor

_actorFiring, _actorFiring, _declareDelayDependency, addActorFiringListener, addInitializable, 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

_addPort, _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, _containedDecorators, _copyChangeRequestList, _debug, _debug, _debug, _debug, _debug, _executeChangeRequests, _getIndentPrefix, _isMoMLSuppressed, _markContentsDerived, _notifyHierarchyListenersAfterChange, _notifyHierarchyListenersBeforeChange, _propagateValue, _removeAttribute, _splitName, _stripNumericSuffix, addChangeListener, addDebugListener, addHierarchyListener, attributeDeleted, attributeList, attributeList, decorators, 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, notifyOfNameChange, propagateValue, propagateValues, removeAttribute, removeChangeListener, removeDebugListener, removeHierarchyListener, 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.kernel.util.Derivable

getDerivedLevel, getDerivedList, propagateValue

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

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.

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<TypedIOPort>

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.