hades.models.gates
Class BitlineBuffer

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

All Implemented Interfaces:

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

public class BitlineBuffer

extends GenericGate

implements Simulatable

BitlineBuffer: a non-inverting buffer that transfers Z into Z. We need this buffer for the RAM storage cell demo, because we cannot model the bitline-drives-against-weak-feedback buffer otherwise. transfer function:

     input_1164:   U X 0 1 Z W L H D
     output_1164:  U X 0 1 Z X 0 1 X
   

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

BitlineBuffer()

Method Summary

void	evaluate(java.lang.Object arg) generate a weak output from the input; we map the StdLogic1164 values as follows: (in-out) (U-W) (X-W) (0-L) (1-H) (Z-W) (W-W) (H-H) (D-W) and schedule the output value on port Y after t_delay

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

BitlineBuffer

public BitlineBuffer()

Method Detail

evaluate

public void evaluate(java.lang.Object arg)

generate a weak output from the input; we map the StdLogic1164 values as follows: (in-out) (U-W) (X-W) (0-L) (1-H) (Z-W) (W-W) (H-H) (D-W) and schedule the output value on port Y after t_delay

Specified by:

evaluate in interface Simulatable

Overrides:

evaluate in class SimObject

Parameters:

arg - an arbitrary object argument