hades.models.rtlib.memory
Class ROMoe

java.lang.Object
  hades.simulator.SimObject
      hades.models.rtlib.memory.GenericMemory
          hades.models.rtlib.memory.ROM
              hades.models.rtlib.memory.ROMoe

All Implemented Interfaces:

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

public class ROMoe

extends ROM

ROMoe - a generic ROMoe with n words by m bits with chip select and output enable inputs.

This class models a standard LSI ROMoe with active low chip select and active low output enable. The data output is tristated unless nCS=0 and nOE=0.

See Also:

Serialized Form

Field Summary

protected PortStdLogic1164	port_nCS
protected PortStdLogic1164	port_nOE

Fields inherited from class hades.models.rtlib.memory.ROM

port_A, port_D, t_access, t_tristate, t_undefined

Fields inherited from class hades.models.rtlib.memory.GenericMemory

bit_mask, data, enableAnimationFlag, last_read_addr, last_read_data, last_write_addr, last_write_data, MEF, n_bits, n_words, resourcename, TRISTATED, UNDEFINED, vector_000, vector_111, vector_UUU, vector_XXX, vector_ZZZ

Fields inherited from class hades.simulator.SimObject

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

Constructor Summary

ROMoe()
ROMoe constructor

Method Summary

protected void	constructPorts()
void	elaborate(java.lang.Object arg) elaborate(): On elaboration, the inputs of the ROMoe will be undefined.
void	evaluate(java.lang.Object arg) evaluate(): Return the data at address after t_access

Methods inherited from class hades.models.rtlib.memory.ROM

canChangeSize, resize, setBitsPerWord, setSize

Methods inherited from class hades.models.rtlib.memory.GenericMemory

addMemoryListener, addMemoryListenerOld, checkInvalidateMemory, configure, constructStandardValues, createMemory, dataAtAddressIsUndefined, dbg, getAddressBusWidth, getAddrOffset, getBitsPerWord, getConfigDialog, getDataArray, getDataAt, getEnableAnimationFlag, getExternalResources, getHexDigitsPerWord, getHexString, getInstructionDecoder, getPropertySheet, getResourcename, getSize, getToolTip, initialize, initializeWithDefaultValues, initializeWithRandomValues, initializeWithX, initializeWithZeroes, isConnected, main, merge, needsExternalResources, notifyReadListeners, notifyReadListenersOld, notifyWriteListeners, notifyWriteListenersOld, parse, parseLabelLine, parseRAM, removeMemoryListener, removeMemoryListenerOld, save, setDataArray, setDataAt, setEnableAnimationFlag, setEnableAnimationFlag, setInstructionDecoder, setResourcename, toString, warning, write

Methods inherited from class hades.simulator.SimObject

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

Methods inherited from class java.lang.Object

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

Field Detail

port_nCS

protected PortStdLogic1164 port_nCS

port_nOE

protected PortStdLogic1164 port_nOE

Constructor Detail

ROMoe

public ROMoe()

ROMoe constructor

Method Detail

constructPorts

protected void constructPorts()

Overrides:

constructPorts in class ROM

elaborate

public void elaborate(java.lang.Object arg)

elaborate(): On elaboration, the inputs of the ROMoe will be undefined. Correspondingly, the outputs are, too.

Specified by:

elaborate in interface Simulatable

Overrides:

elaborate in class ROM

evaluate

public void evaluate(java.lang.Object arg)

evaluate(): Return the data at address after t_access

Specified by:

evaluate in interface Simulatable

Overrides:

evaluate in class ROM