dioscuri.module.video
Class Video

java.lang.Object
  dioscuri.module.AbstractModule
      dioscuri.module.ModuleVideo
          dioscuri.module.video.Video

All Implemented Interfaces:

Addressable, Module, Updateable

public class Video
extends ModuleVideo

An implementation of a video (VGA) module.

See Also:

Metadata module ******************************************** general.type : video general.name : General VGA display adapter general.architecture : Von Neumann general.description : Models a simple VGA adapter general.creator : Tessella Support Services, Koninklijke Bibliotheek, Nationaal Archief of the Netherlands general.version : 1.0 general.keywords : VGA, Video Graphics Array, video, graphics, 640, 480 general.relations : Motherboard general.yearOfIntroduction : general.yearOfEnding : general.ancestor : general.successor :

Notes: - This code is based on Bochs code which has been ported to Java.

Nested Class Summary

class

Video.DiosJPCVideoConnect

Nested classes/interfaces inherited from interface dioscuri.interfaces.Module

Module.Type

Field Summary

Video.DiosJPCVideoConnect

vidMemConnect

Fields inherited from class dioscuri.module.AbstractModule

type

Constructor Summary

Video(Emulator owner)
Class constructor

Method Summary

void	acceptComponent(HardwareComponent component)
int[]	determineScreenSize() Determine the screen size in pixels
byte	getAttributePaletteRegister(int index) Returns a byte from attribute palette register at position index
byte	getIOPortByte(int portAddress)
byte[]	getIOPortDoubleWord(int portAddress)
byte[]	getIOPortWord(int portAddress)
byte	getTextSnapshot(int index) Returns a byte from text snapshot at position index
int	getUpdateInterval() Get the update interval.
byte[]	getVideoBuffer() Returns a pointer to the whole video buffer
byte	getVideoBufferByte(int index) Returns a byte from video buffer at position index
java.lang.String	getVideoBufferCharacters() Returns all characters (as Unicode) that are currently in buffer
byte	readMode(int address) Video read mode implementations
boolean	reset() Reset all parameters of module.
void	setIOPortByte(int portAddress, byte data)
void	setIOPortDoubleWord(int portAddress, byte[] dataDoubleWord)
void	setIOPortWord(int portAddress, byte[] dataWord)
void	setTextSnapshot(int index, byte data) Stores a byte in text snapshot at position index
void	setUpdateInterval(int interval) Defines the interval between subsequent updates
void	setVideoBufferByte(int index, byte data) Stores a byte in video buffer at position index
void	update() Update the module.
void	writeMode(int address, byte value) Video write mode implementations

Methods inherited from class dioscuri.module.AbstractModule

getConnection, getConnections, getDebugMode, getDump, getExpectedConnections, getType, isConnected, setConnection, setDebugMode, start, stop

Methods inherited from class java.lang.Object

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

Methods inherited from interface dioscuri.interfaces.Module

getConnection, getConnections, getDebugMode, getDump, getExpectedConnections, getType, isConnected, setConnection, setDebugMode, start, stop

Field Detail

vidMemConnect

public Video.DiosJPCVideoConnect vidMemConnect

Constructor Detail

Video

public Video(Emulator owner)

Class constructor

Parameters:

owner -

Method Detail

reset

public boolean reset()

Reset all parameters of module.

Specified by:

reset in interface Module

Specified by:

reset in class AbstractModule

Returns:

true iff the AbstractModule was reset properly.

See Also:

AbstractModule

getUpdateInterval

public int getUpdateInterval()

Get the update interval.

Returns:

the update interval

See Also:

Updateable

setUpdateInterval

public void setUpdateInterval(int interval)

Defines the interval between subsequent updates

Parameters:

interval - the interval between subsequent updates in ms.

See Also:

Updateable

update

public void update()

Update the module.

See Also:

Updateable

getIOPortByte

public byte getIOPortByte(int portAddress)
                   throws ModuleException,
                          UnknownPortException,
                          WriteOnlyPortException

Returns:

Throws:

ModuleException

UnknownPortException

WriteOnlyPortException

See Also:

Addressable

setIOPortByte

public void setIOPortByte(int portAddress,
                          byte data)
                   throws ModuleException,
                          UnknownPortException

Throws:

ModuleException

UnknownPortException

See Also:

Addressable

getIOPortWord

public byte[] getIOPortWord(int portAddress)
                     throws ModuleException,
                            UnknownPortException,
                            WriteOnlyPortException

Returns:

Throws:

ModuleException

UnknownPortException

WriteOnlyPortException

See Also:

Addressable

setIOPortWord

public void setIOPortWord(int portAddress,
                          byte[] dataWord)
                   throws ModuleException,
                          UnknownPortException

Throws:

ModuleException

UnknownPortException

See Also:

Addressable

getIOPortDoubleWord

public byte[] getIOPortDoubleWord(int portAddress)
                           throws ModuleException,
                                  UnknownPortException,
                                  WriteOnlyPortException

Returns:

Throws:

ModuleException

UnknownPortException

WriteOnlyPortException

See Also:

Addressable

setIOPortDoubleWord

public void setIOPortDoubleWord(int portAddress,
                                byte[] dataDoubleWord)
                         throws ModuleException,
                                UnknownPortException

Throws:

ModuleException

UnknownPortException

See Also:

Addressable

getVideoBuffer

public byte[] getVideoBuffer()

Returns a pointer to the whole video buffer

Specified by:

getVideoBuffer in class ModuleVideo

Returns:

byte[] containing the video buffer

See Also:

ModuleVideo

getVideoBufferByte

public byte getVideoBufferByte(int index)

Returns a byte from video buffer at position index

Specified by:

getVideoBufferByte in class ModuleVideo

Returns:

byte from video buffer

See Also:

ModuleVideo

setVideoBufferByte

public void setVideoBufferByte(int index,
                               byte data)

Stores a byte in video buffer at position index

Specified by:

setVideoBufferByte in class ModuleVideo

See Also:

ModuleVideo

getVideoBufferCharacters

public java.lang.String getVideoBufferCharacters()

Returns all characters (as Unicode) that are currently in buffer

Specified by:

getVideoBufferCharacters in class ModuleVideo

Returns:

String containing all characters in the buffer or null when no characters exist

See Also:

ModuleVideo

getTextSnapshot

public byte getTextSnapshot(int index)

Returns a byte from text snapshot at position index

Specified by:

getTextSnapshot in class ModuleVideo

Returns:

byte from textsnapshot

See Also:

ModuleVideo

setTextSnapshot

public void setTextSnapshot(int index,
                            byte data)

Stores a byte in text snapshot at position index

Specified by:

setTextSnapshot in class ModuleVideo

See Also:

ModuleVideo

getAttributePaletteRegister

public byte getAttributePaletteRegister(int index)

Returns a byte from attribute palette register at position index

Specified by:

getAttributePaletteRegister in class ModuleVideo

Returns:

byte from register

See Also:

ModuleVideo

determineScreenSize

public int[] determineScreenSize()

Determine the screen size in pixels

Specified by:

determineScreenSize in class ModuleVideo

Returns:

integer array containing [height, width] of screen in pixels

See Also:

ModuleVideo

readMode

public byte readMode(int address)

Video read mode implementations

Specified by:

readMode in class ModuleVideo

Returns:

-

See Also:

ModuleVideo

writeMode

public void writeMode(int address,
                      byte value)

Video write mode implementations

Specified by:

writeMode in class ModuleVideo

See Also:

ModuleVideo

acceptComponent

public void acceptComponent(HardwareComponent component)

Parameters:

component -