hades.models.mips.core
Class Coprocessor

java.lang.Object
  hades.models.mips.core.Coprocessor

All Implemented Interfaces:

Memory, Resetable

Direct Known Subclasses:

Copro0

public class Coprocessor

extends java.lang.Object

implements Memory, Resetable

Skeleton for a coprocessor including registers and instruction execution logic

Field Summary

protected boolean	condition
protected Registers	coreReg
protected boolean	debug
protected int	number
protected PartHandler	partHandler
protected int[]	reg

Constructor Summary

Coprocessor(PartHandler newPartHandler, int coprocNumber)

Method Summary

int	decodeAndExecute(Registers registers, Splitter splitter)
boolean	getCondition()
int	getCoproNumber()
boolean	getLog() Get debug mode
int	getMemorySize() Capacity of the memory in words
int	getWordWidth() Witdh of one word in bits
void	installEntryHandler(EntryHandler entryHandler) setEntry() calles this EntryHandler
void	por() Power on reset or hardware reset
int	readControlRegister(int address)
int	readMemory(int address) Read a word from the memory
int	readRegister(int address)
void	reset() software reset
void	setCondition(boolean newCondition)
void	setEntry(int entry, int globalPointer) Set the entry address and the global pointer if memory contains a executable program
void	setLog(boolean newDebug) Enable or disable logging output
void	writeControlRegister(int address, int word)
void	writeMemory(int address, int word) Write a word into the memory
void	writeRegister(int address, int word)

Methods inherited from class java.lang.Object

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

Field Detail

partHandler

protected PartHandler partHandler

coreReg

protected Registers coreReg

reg

protected int[] reg

condition

protected boolean condition

number

protected int number

debug

protected boolean debug

Constructor Detail

Coprocessor

public Coprocessor(PartHandler newPartHandler,
                   int coprocNumber)

Method Detail

por

public void por()

Power on reset or hardware reset

Specified by:

por in interface Resetable

reset

public void reset()

software reset

Specified by:

reset in interface Resetable

getCoproNumber

public int getCoproNumber()

getWordWidth

public int getWordWidth()

Description copied from interface: Memory

Witdh of one word in bits

Specified by:

getWordWidth in interface Memory

getMemorySize

public int getMemorySize()

Description copied from interface: Memory

Capacity of the memory in words

Specified by:

getMemorySize in interface Memory

readMemory

public int readMemory(int address)

Description copied from interface: Memory

Read a word from the memory

Specified by:

readMemory in interface Memory

writeMemory

public void writeMemory(int address,
                        int word)

Description copied from interface: Memory

Write a word into the memory

Specified by:

writeMemory in interface Memory

setEntry

public void setEntry(int entry,
                     int globalPointer)

Description copied from interface: Memory

Set the entry address and the global pointer if memory contains a executable program

Specified by:

setEntry in interface Memory

installEntryHandler

public void installEntryHandler(EntryHandler entryHandler)

Description copied from interface: Memory

setEntry() calles this EntryHandler

Specified by:

installEntryHandler in interface Memory

setLog

public void setLog(boolean newDebug)

Description copied from interface: Memory

Enable or disable logging output

Specified by:

setLog in interface Memory

getLog

public boolean getLog()

Description copied from interface: Memory

Get debug mode

Specified by:

getLog in interface Memory

readRegister

public int readRegister(int address)

writeRegister

public void writeRegister(int address,
                          int word)

readControlRegister

public int readControlRegister(int address)

writeControlRegister

public void writeControlRegister(int address,
                                 int word)

getCondition

public boolean getCondition()

setCondition

public void setCondition(boolean newCondition)

decodeAndExecute

public int decodeAndExecute(Registers registers,
                            Splitter splitter)