hades.models.gates
Class Tri

java.lang.Object
  hades.simulator.SimObject
      hades.models.gates.GenericGate
          hades.models.gates.Tri

All Implemented Interfaces:

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

Direct Known Subclasses:

Tri

public class Tri

extends GenericGate

implements Simulatable

Tri: a tristate buffer. Signals are expected to be StdLogic1164 objects.

See Also:

Serialized Form

Field Summary

Fields inherited from class hades.models.gates.GenericGate

t_delay

Fields inherited from class hades.simulator.SimObject

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

Constructor Summary

Tri()

Method Summary

void	evaluate(java.lang.Object arg) model a tri-state inverting buffer using StdLogic1164.

Methods inherited from class hades.models.gates.GenericGate

configure, copy, elaborate, getDelay, getToolTip, initialize, scheduleEvent, scheduleEventAfter, scheduleOutputValue, scheduleOutputValueAfter, setDelay, setDelay, write

Methods inherited from class hades.simulator.SimObject

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface hades.simulator.Simulatable

elaborate, message

Constructor Detail

Tri

public Tri()

Method Detail

evaluate

public void evaluate(java.lang.Object arg)

model a tri-state inverting buffer using StdLogic1164. The enable input is active low. Therefore, we generate a 'Z' output when the S input is '1' or 'H', and the inverted value of the A input when S is '0' or 'L'. Other values at the S control input result in 'X' output value.

Specified by:

evaluate in interface Simulatable

Overrides:

evaluate in class SimObject

Parameters:

arg - an arbitrary object argument