hades.models.mcore
Class DcoreROM

java.lang.Object
  hades.simulator.SimObject
      hades.models.rtlib.memory.GenericMemory
          hades.models.mcore.DcoreRAM
              hades.models.mcore.DcoreROM

All Implemented Interfaces:

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

public class DcoreROM

extends DcoreRAM

DcoreROM - a ROM with n words by m bits and output enable inputs.

The user interface for the ROM offers a disassembler view with support for LABEL resolution and editing. Input and output formats display and use byte-addresses, but only aligned works will be accepted on input.

When chip-select or output enable are high, the data output of the ROM is tristated.

See Also:

Serialized Form

Field Summary

Fields inherited from class hades.models.mcore.DcoreRAM

addr_offset, editor, port_A, port_DIN, port_DOUT, port_nCS, port_nOE, port_nWE, t_access, t_min_we_cycle, t_setup, 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, name, parent, ports, propertySheet, simulator, symbol, versionId, visible

Constructor Summary

DcoreROM()
DcoreROM constructor

Method Summary

protected void	constructPorts() construct the ports for this memory.
void	evaluate(java.lang.Object arg) evaluate():

Methods inherited from class hades.models.mcore.DcoreRAM

canChangeSize, configure, createEditor, elaborate, getAddrOffset, getPropertySheet, initialize, parse, parseLabelLine, resize, save, setBitsPerWord, setSize, write

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

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

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

Constructor Detail

DcoreROM

public DcoreROM()

DcoreROM constructor

Method Detail

constructPorts

protected void constructPorts()

construct the ports for this memory. Note that the address bus width is one bit higher than might be expected, due to the word-address vs. byte address conflict: external adresses are byte addresses, but the memory stores words...

Overrides:

constructPorts in class DcoreRAM

evaluate

public void evaluate(java.lang.Object arg)

evaluate():

Specified by:

evaluate in interface Simulatable

Overrides:

evaluate in class DcoreRAM