dioscuri.module.video
Class VideoCard

java.lang.Object
  dioscuri.module.video.VideoCard

public class VideoCard
extends java.lang.Object

Implementation of a VGA videocard Based on Bochs code (http://bochs.sourceforge.net/) Implements all VGA registers (Sequencer, CRTC, Graphics, Attribute, Colour and Miscellaneous) and more...

Field Summary

byte[]	textSnapshot
byte[]	vgaMemory
protected static int	X_TILESIZE
protected static int	Y_TILESIZE

Constructor Summary

VideoCard()

Method Summary

protected boolean	getTileUpdate(int xtile, int ytile) If within tile bounds, retrieves the status of the vgaTileUpdate value
void	reset() Return variables to default values
protected void	setTileUpdate(int xtile, int ytile, boolean value) If within tile bounds, sets the vgaTileUpdate to value

Methods inherited from class java.lang.Object

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

Field Detail

X_TILESIZE

protected static final int X_TILESIZE

See Also:

Constant Field Values

Y_TILESIZE

protected static final int Y_TILESIZE

See Also:

Constant Field Values

vgaMemory

public byte[] vgaMemory

textSnapshot

public byte[] textSnapshot

Constructor Detail

VideoCard

public VideoCard()

Method Detail

setTileUpdate

protected final void setTileUpdate(int xtile,
                                   int ytile,
                                   boolean value)

If within tile bounds, sets the vgaTileUpdate to value

Parameters:

xtile - Location of x tile

ytile - Location of y tile

value - True or false reflecting whether this tile has been updated

getTileUpdate

protected final boolean getTileUpdate(int xtile,
                                      int ytile)

If within tile bounds, retrieves the status of the vgaTileUpdate value

Parameters:

xtile - Location of x tile

ytile - Location of y tile

Returns:

True or false reflecting whether this tile has been updated

reset

public void reset()

Return variables to default values