AppleCommander/lib/ac-api/src/main/java/com/webcodepro/applecommander/storage/physical/UniversalDiskImageLayout.java

68 lines
1.8 KiB
Java

/*
* AppleCommander - An Apple ][ image utility.
* Copyright (C) 2003 by Robert Greene
* robgreene at users.sourceforge.net
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package com.webcodepro.applecommander.storage.physical;
/**
* Manages the physical 2IMG disk.
* @author Rob Greene (RobGreene@users.sourceforge.net)
*/
public class UniversalDiskImageLayout extends ByteArrayImageLayout {
/**
* This is the 2IMG offset.
*/
public static final int OFFSET = 0x40;
/**
* Construct a UniversalDiskImageLayout.
*/
public UniversalDiskImageLayout(byte[] diskImage) {
super(diskImage);
}
/**
* Construct a UniversalDiskImageLayout.
*/
public UniversalDiskImageLayout(byte[] diskImage, boolean changed) {
super(diskImage, changed);
}
/**
* Construct a UniversalDiskImageLayout.
*/
public UniversalDiskImageLayout(int size) {
super(size + OFFSET);
}
/**
* Extract a portion of the disk image.
*/
public byte[] readBytes(int start, int length) {
return super.readBytes(start + OFFSET, length);
}
/**
* Write data to the disk image.
*/
public void writeBytes(int start, byte[] bytes) {
super.writeBytes(start + OFFSET, bytes);
}
}