hades.models.mips.memory
Class BreakPointMemory

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

All Implemented Interfaces:

Memory

Direct Known Subclasses:

Registers, TinyBPMemory

public class BreakPointMemory

extends java.lang.Object

implements Memory

Memories can be fitted with breakpoints.

Field Summary

static int	BP_IDLE
static int	BP_READALL
static int	BP_READVAL
static int	BP_WRITEALL
static int	BP_WRITEVAL
protected BreakPointHandler	bpHandler
protected boolean	bpHandlerInstalled
protected boolean	debug
protected BaseMemory	mem
protected BaseMemory	readBP
protected BaseMemory	readVal
protected BaseMemory	writeBP
protected BaseMemory	writeVal

Constructor Summary

BreakPointMemory(int newSize, int newBits)

Method Summary

boolean	getLog() Get debug mode
Memory	getMemory() For access without breakpoints
int	getMemorySize() Capacity of the memory in words
Memory	getReadBPMemory() For access to read breakpoint memory
Memory	getReadValMemory() For access to read breakpoint value memory
int	getWordWidth() Witdh of one word in bits
Memory	getWriteBPMemory() For access to write breakpoint memory
Memory	getWriteValMemory() For access to write breakpoint value memory
void	installBreakPointHandler(BreakPointHandler newBreakPointHandler) The BreakPointHandler will be called if a breakpoint occurs
void	installEntryHandler(EntryHandler entryHandler) setEntry() calles this EntryHandler
int	readMemory(int address) Read a word from the memory
void	setEntry(int entry, int globalPointer) Set the entry address if memory contains a executable program
void	setLog(boolean newDebug) Enable or disable logging output
void	setReadBP(boolean isBreakPoint, boolean hasValue, int adr, int value) Set or unset read breakpoint.
void	setWriteBP(boolean isBreakPoint, boolean hasValue, int adr, int value) Set or unset write breakpoint.
void	writeMemory(int address, int word) Write a word into the memory

Methods inherited from class java.lang.Object

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

Field Detail

BP_IDLE

public static final int BP_IDLE

See Also:

Constant Field Values

BP_READALL

public static final int BP_READALL

See Also:

Constant Field Values

BP_READVAL

public static final int BP_READVAL

See Also:

Constant Field Values

BP_WRITEALL

public static final int BP_WRITEALL

See Also:

Constant Field Values

BP_WRITEVAL

public static final int BP_WRITEVAL

See Also:

Constant Field Values

mem

protected BaseMemory mem

readBP

protected BaseMemory readBP

writeBP

protected BaseMemory writeBP

readVal

protected BaseMemory readVal

writeVal

protected BaseMemory writeVal

bpHandler

protected BreakPointHandler bpHandler

bpHandlerInstalled

protected boolean bpHandlerInstalled

debug

protected boolean debug

Constructor Detail

BreakPointMemory

public BreakPointMemory(int newSize,
                        int newBits)

Method Detail

setReadBP

public void setReadBP(boolean isBreakPoint,
                      boolean hasValue,
                      int adr,
                      int value)

Set or unset read breakpoint. if (hasValue) readVal[adr] = value; That means, if hasValue is true, a breakpoint will only be raised when the memory contains the value

setWriteBP

public void setWriteBP(boolean isBreakPoint,
                       boolean hasValue,
                       int adr,
                       int value)

Set or unset write breakpoint. if (hasValue) writeVal[adr] = value; That means, if hasValue is true, a breakpoint will only be raised when value has been written to memory

getMemory

public Memory getMemory()

For access without breakpoints

getReadBPMemory

public Memory getReadBPMemory()

For access to read breakpoint memory

getReadValMemory

public Memory getReadValMemory()

For access to read breakpoint value memory

getWriteBPMemory

public Memory getWriteBPMemory()

For access to write breakpoint memory

getWriteValMemory

public Memory getWriteValMemory()

For access to write breakpoint value memory

installBreakPointHandler

public void installBreakPointHandler(BreakPointHandler newBreakPointHandler)

The BreakPointHandler will be called if a breakpoint occurs

getWordWidth

public int getWordWidth()

Witdh of one word in bits

Specified by:

getWordWidth in interface Memory

getMemorySize

public int getMemorySize()

Capacity of the memory in words

Specified by:

getMemorySize in interface Memory

readMemory

public int readMemory(int address)

Read a word from the memory

Specified by:

readMemory in interface Memory

writeMemory

public void writeMemory(int address,
                        int word)

Write a word into the memory

Specified by:

writeMemory in interface Memory

setEntry

public void setEntry(int entry,
                     int globalPointer)

Set the entry address if memory contains a executable program

Specified by:

setEntry in interface Memory

installEntryHandler

public void installEntryHandler(EntryHandler entryHandler)

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