hades.models.mips.core
Class Registers

java.lang.Object
  hades.models.mips.memory.BreakPointMemory
      hades.models.mips.core.Registers

All Implemented Interfaces:

Memory, Resetable

public class Registers

extends BreakPointMemory

implements Resetable

35 Registers with 32 bits, accessable with the Memory interface. Regster 0 always contains 0, 31 registers are for general purpose use and pc, lo and hi are the program counter, lo and hi registers for multiplication/division.

Field Summary

static int	HI
static int	LO
protected PartHandler	partHandler
static int	PC

Fields inherited from class hades.models.mips.memory.BreakPointMemory

BP_IDLE, BP_READALL, BP_READVAL, BP_WRITEALL, BP_WRITEVAL, bpHandler, bpHandlerInstalled, debug, mem, readBP, readVal, writeBP, writeVal

Constructor Summary

Registers(PartHandler newPartHandler)

Method Summary

int	incAndReadPC()
void	por() Power on reset or hardware reset
int	readHI()
int	readLO()
int	readMemory(int address) Read a word from the memory
int	readPC()
int	readRegister(int register)
void	reset() software reset
void	writeHI(int newValue)
void	writeLO(int newValue)
void	writeMemory(int address, int word) Write a word into the memory
void	writePC(int newValue)
void	writeRegister(int register, int value)

Methods inherited from class hades.models.mips.memory.BreakPointMemory

getLog, getMemory, getMemorySize, getReadBPMemory, getReadValMemory, getWordWidth, getWriteBPMemory, getWriteValMemory, installBreakPointHandler, installEntryHandler, setEntry, setLog, setReadBP, setWriteBP

Methods inherited from class java.lang.Object

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

Field Detail

PC

public static final int PC

See Also:

Constant Field Values

LO

public static final int LO

See Also:

Constant Field Values

HI

public static final int HI

See Also:

Constant Field Values

partHandler

protected PartHandler partHandler

Constructor Detail

Registers

public Registers(PartHandler newPartHandler)

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

readMemory

public int readMemory(int address)

Read a word from the memory

Specified by:

readMemory in interface Memory

Overrides:

readMemory in class BreakPointMemory

writeMemory

public void writeMemory(int address,
                        int word)

Write a word into the memory

Specified by:

writeMemory in interface Memory

Overrides:

writeMemory in class BreakPointMemory

readRegister

public int readRegister(int register)

writeRegister

public void writeRegister(int register,
                          int value)

readPC

public int readPC()

incAndReadPC

public int incAndReadPC()

writePC

public void writePC(int newValue)

readLO

public int readLO()

writeLO

public void writeLO(int newValue)

readHI

public int readHI()

writeHI

public void writeHI(int newValue)