hades.models.rtlib.memory
Class ROM
java.lang.Object
hades.simulator.SimObject
hades.models.rtlib.memory.GenericMemory
hades.models.rtlib.memory.ROM
- All Implemented Interfaces:
- java.lang.Cloneable, ContextToolTip, Memory, java.io.Serializable, Simulatable
- Direct Known Subclasses:
- ROMcs, ROMoe
- public class ROM
- extends GenericMemory
ROM - a generic ROM with n words by m bits.
This class models a standard LSI ROM without clocking or enable.
- See Also:
- Serialized Form
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 |
ROM()
ROM constructor |
Method Summary |
boolean |
canChangeSize()
|
protected void |
constructPorts()
|
void |
elaborate(java.lang.Object arg)
elaborate(): On elaboration, the inputs of the ROM will be undefined. |
void |
evaluate(java.lang.Object arg)
evaluate(): Return the data at address after t_access |
boolean |
resize(int n_words,
int n_bits)
|
void |
setBitsPerWord(int n_bits)
|
void |
setSize(int n_words)
|
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 |
port_A
protected PortStdLogicVector port_A
port_D
protected PortStdLogicVector port_D
t_access
public static final double t_access
- See Also:
- Constant Field Values
t_tristate
public static final double t_tristate
- See Also:
- Constant Field Values
t_undefined
public static final double t_undefined
- See Also:
- Constant Field Values
ROM
public ROM()
- ROM constructor
constructPorts
protected void constructPorts()
- Overrides:
constructPorts
in class GenericMemory
canChangeSize
public boolean canChangeSize()
- Specified by:
canChangeSize
in interface Memory
- Overrides:
canChangeSize
in class GenericMemory
setSize
public void setSize(int n_words)
- Specified by:
setSize
in interface Memory
- Overrides:
setSize
in class GenericMemory
setBitsPerWord
public void setBitsPerWord(int n_bits)
- Specified by:
setBitsPerWord
in interface Memory
- Overrides:
setBitsPerWord
in class GenericMemory
resize
public boolean resize(int n_words,
int n_bits)
- Specified by:
resize
in interface Memory
- Overrides:
resize
in class GenericMemory
elaborate
public void elaborate(java.lang.Object arg)
- elaborate(): On elaboration, the inputs of the ROM will be undefined.
Correspondingly, the outputs are, too.
- Specified by:
elaborate
in interface Simulatable
- Overrides:
elaborate
in class GenericMemory
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 GenericMemory