ptolemy.actor.lib.vhdl
Class Memory

java.lang.Object
  ptolemy.kernel.util.NamedObj
      ptolemy.kernel.InstantiableNamedObj
          ptolemy.kernel.Entity
              ptolemy.kernel.ComponentEntity
                  ptolemy.actor.AtomicActor
                      ptolemy.actor.TypedAtomicActor
                          ptolemy.actor.lib.vhdl.FixTransformer
                              ptolemy.actor.lib.vhdl.SynchronousFixTransformer
                                  ptolemy.actor.lib.vhdl.Memory

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 Memory
extends SynchronousFixTransformer

Produce an output token on each firing with a FixPoint value that is equal to the concatenation of the input bits from each input channel. The ordering of channels determines the order of the concatenation; inputs from later channels are appended to the end. The input can have any scalar type.

Since:

Ptolemy II 6.0

Version:

$Id: Memory.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	_addressWidth
private int	_capacity
private int	_dataWidth
private FixToken[]	_storage
TypedIOPort	address The address port for fetching data.
Parameter	capacity The range of address from 0 to capacity.
TypedIOPort	dataIn The input port for writing data .
TypedIOPort	writeEnable The control port for signaling write.

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

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

Method Summary

void	attributeChanged(Attribute attribute) Override the base class to determine which function is being specified.
void	fire() Output the fixpoint value of the concatenation of the input bits.
void	initialize() Initialize the state of the actor.
void	preinitialize() Override the base class to declare that the address, dataIn and writeEnable ports do not depend on the output in a firing.

Methods inherited from class ptolemy.actor.lib.vhdl.SynchronousFixTransformer

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

capacity

public Parameter capacity

The range of address from 0 to capacity.

dataIn

public TypedIOPort dataIn

The input port for writing data .

writeEnable

public TypedIOPort writeEnable

The control port for signaling write.

address

public TypedIOPort address

The address port for fetching data.

_addressWidth

private int _addressWidth

_capacity

private int _capacity

_dataWidth

private int _dataWidth

_storage

private FixToken[] _storage

Constructor Detail

Memory

public Memory(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

attributeChanged

public void attributeChanged(Attribute attribute)
                      throws IllegalActionException

Override the base class to determine which function is being specified.

Overrides:

attributeChanged in class SynchronousFixTransformer

Parameters:

attribute - The attribute that changed.

Throws:

IllegalActionException

IllegalActionException - If the function is not recognized.

fire

public void fire()
          throws IllegalActionException

Output the fixpoint value of the concatenation of the input bits. If there is no inputs, 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

Description copied from class: SynchronousFixTransformer

Initialize the state of the actor.

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 address, dataIn and writeEnable 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.