dioscuri.module.cpu32
Class LazyCodeBlockMemory

java.lang.Object
  dioscuri.module.cpu32.Memory
      dioscuri.module.cpu32.AbstractMemory
          dioscuri.module.cpu32.LazyMemory
              dioscuri.module.cpu32.LazyCodeBlockMemory

All Implemented Interfaces:

ByteArray

Direct Known Subclasses:

EPROMMemory

public class LazyCodeBlockMemory
extends LazyMemory

Author:

Bram Lohman, Bart Kiers

Field Summary

protected ProtectedModeCodeBlock[]	protectedCodeBuffer
protected RealModeCodeBlock[]	realCodeBuffer
protected Virtual8086ModeCodeBlock[]	virtual8086CodeBuffer

Constructor Summary

LazyCodeBlockMemory(byte[] buf, Clock clk)

LazyCodeBlockMemory(int size, Clock clk)

LazyCodeBlockMemory(Memory src, Clock clk)

Method Summary

void	clear()
protected void	constructCodeBlocksArray()
void	copyContentsFrom(int address, byte[] buf, int off, int len)
CodeBlock	decodeCodeBlockAt(Processor cpu, int offset)
static void	dispose()
int	execute(Processor cpu, int offset)
protected void	regionAltered(int start, int end)
void	relinquishCache()
void	setByte(int offset, byte data)
void	setDoubleWord(int offset, int data)
void	setProtectedCodeBlockAt(int offset, ProtectedModeCodeBlock block)
void	setRealCodeBlockAt(int offset, RealModeCodeBlock block)
void	setVirtual8086CodeBlockAt(int offset, Virtual8086ModeCodeBlock block)
void	setWord(int offset, short data)
java.lang.String	toString()

Methods inherited from class dioscuri.module.cpu32.LazyMemory

copyContentsInto, getByte, getDoubleWord, getSize, getWord, isAllocated, isCacheable

Methods inherited from class dioscuri.module.cpu32.AbstractMemory

clear, clearArray, clearArray, getDoubleWord, getDoubleWordInBytes, getLowerDoubleQuadWord, getQuadWord, getQuadWordInBytes, getUpperDoubleQuadWord, getWord, getWordInBytes, setDoubleWordInBytes, setLowerDoubleQuadWord, setQuadWord, setQuadWordInBytes, setUpperDoubleQuadWord, setWordInBytes

Methods inherited from class java.lang.Object

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

Field Detail

realCodeBuffer

protected RealModeCodeBlock[] realCodeBuffer

protectedCodeBuffer

protected ProtectedModeCodeBlock[] protectedCodeBuffer

virtual8086CodeBuffer

protected Virtual8086ModeCodeBlock[] virtual8086CodeBuffer

Constructor Detail

LazyCodeBlockMemory

public LazyCodeBlockMemory(Memory src,
                           Clock clk)

Parameters:

src -

clk -

LazyCodeBlockMemory

public LazyCodeBlockMemory(byte[] buf,
                           Clock clk)

Parameters:

buf -

clk -

LazyCodeBlockMemory

public LazyCodeBlockMemory(int size,
                           Clock clk)

Parameters:

size -

clk -

Method Detail

constructCodeBlocksArray

protected void constructCodeBlocksArray()

relinquishCache

public void relinquishCache()

execute

public int execute(Processor cpu,
                   int offset)

Overrides:

execute in class LazyMemory

Parameters:

cpu -

offset -

Returns:

-

decodeCodeBlockAt

public CodeBlock decodeCodeBlockAt(Processor cpu,
                                   int offset)

Overrides:

decodeCodeBlockAt in class LazyMemory

Parameters:

cpu -

offset -

Returns:

-

setVirtual8086CodeBlockAt

public void setVirtual8086CodeBlockAt(int offset,
                                      Virtual8086ModeCodeBlock block)

Parameters:

offset -

block -

setProtectedCodeBlockAt

public void setProtectedCodeBlockAt(int offset,
                                    ProtectedModeCodeBlock block)

Parameters:

offset -

block -

setRealCodeBlockAt

public void setRealCodeBlockAt(int offset,
                               RealModeCodeBlock block)

Parameters:

offset -

block -

regionAltered

protected void regionAltered(int start,
                             int end)

Parameters:

start -

end -

copyContentsFrom

public void copyContentsFrom(int address,
                             byte[] buf,
                             int off,
                             int len)

Overrides:

copyContentsFrom in class LazyMemory

Parameters:

address -

buf -

off -

len -

setByte

public void setByte(int offset,
                    byte data)

Specified by:

setByte in interface ByteArray

Overrides:

setByte in class LazyMemory

Parameters:

offset -

data -

setWord

public void setWord(int offset,
                    short data)

Overrides:

setWord in class LazyMemory

Parameters:

offset -

data -

setDoubleWord

public void setDoubleWord(int offset,
                          int data)

Overrides:

setDoubleWord in class LazyMemory

Parameters:

offset -

data -

clear

public void clear()

Specified by:

clear in interface ByteArray

Overrides:

clear in class LazyMemory

toString

public java.lang.String toString()

Overrides:

toString in class LazyMemory

dispose

public static void dispose()