hades.models.ttl74
Class SN7449

java.lang.Object
  hades.simulator.SimObject
      hades.models.ttl74.SN7449

All Implemented Interfaces:

java.lang.Cloneable, ContextToolTip, java.io.Serializable, Simulatable

Direct Known Subclasses:

SN7449_pinout

public class SN7449

extends SimObject

implements Simulatable, java.io.Serializable

SN7449 - a subclass of SimObject that models a SN7449 TTL seven-segment decoder. Signals are expected to be StdLogic1164 objects.

See Also:

Serialized Form

Field Summary

protected static int[][]	CMATRIX
protected int	index
protected StdLogic1164	next_Q
protected Port	port_A
protected Port	port_B
protected Port	port_C
protected Port	port_D
protected Port	port_GND
protected Port	port_Ndark
protected Port	port_VCC
protected Port[]	segments
(package private) static double	t_delay
protected StdLogic1164	value_0
protected StdLogic1164	value_1
protected StdLogic1164	value_U
protected StdLogic1164	value_X
protected StdLogic1164[]	values

Fields inherited from class hades.simulator.SimObject

classloader, console, debug, editor, name, parent, ports, propertySheet, simulator, symbol, versionId, visible

Constructor Summary

SN7449()

Method Summary

void	elaborate(java.lang.Object arg) elaborate(): This method is called by the simulation engine to initialize the simulation object.
void	evaluate(java.lang.Object arg) evaluate(): read the current input Port values and calculate the corresponding seven-segment output values.
java.lang.String	toString() toString() - the usual info method

Methods inherited from class hades.simulator.SimObject

configure, constructDynamicSymbol, copy, getBindkey, getClassLoader, getDebug, getEditor, getExternalResources, getFullName, getName, getParent, getPort, getPorts, getPropertySheet, getResourceAsStream, getSimulator, getSymbol, getSymbolResourceName, getToolTip, getVersionId, initialize, isVisible, keyPressed, message, mousePressed, needsDynamicSymbol, needsExternalResources, setClassLoader, setConsole, setDebug, setEditor, setName, setParent, setPorts, setSimulator, setSymbol, setVersionId, setVisible, tearDown, write

Methods inherited from class java.lang.Object

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

Methods inherited from interface hades.simulator.Simulatable

message

Field Detail

port_A

protected Port port_A

port_B

protected Port port_B

port_C

protected Port port_C

port_D

protected Port port_D

port_Ndark

protected Port port_Ndark

segments

protected Port[] segments

port_GND

protected Port port_GND

port_VCC

protected Port port_VCC

next_Q

protected StdLogic1164 next_Q

value_0

protected StdLogic1164 value_0

value_1

protected StdLogic1164 value_1

value_X

protected StdLogic1164 value_X

value_U

protected StdLogic1164 value_U

values

protected StdLogic1164[] values

index

protected int index

t_delay

static double t_delay

CMATRIX

protected static int[][] CMATRIX

Constructor Detail

SN7449

public SN7449()

Method Detail

elaborate

public void elaborate(java.lang.Object arg)

elaborate(): This method is called by the simulation engine to initialize the simulation object.

Specified by:

elaborate in interface Simulatable

Overrides:

elaborate in class SimObject

evaluate

public void evaluate(java.lang.Object arg)

evaluate(): read the current input Port values and calculate the corresponding seven-segment output values.

Specified by:

evaluate in interface Simulatable

Overrides:

evaluate in class SimObject

Parameters:

arg - an arbitrary object argument

toString

public java.lang.String toString()

toString() - the usual info method

Overrides:

toString in class SimObject