73 lines
2.0 KiB
Java
73 lines
2.0 KiB
Java
/*
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* AppleCommander - An Apple ][ image utility.
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* Copyright (C) 2002 by Robert Greene
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* robgreene at users.sourceforge.net
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package com.webcodepro.applecommander.storage;
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/**
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* Provide common directory attributes.
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* <p>
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* Date created: Oct 5, 2002 11:17:00 PM
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* @author: Rob Greene
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*/
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public class ProdosCommonDirectoryHeader extends ProdosCommonEntry {
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/**
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* Constructor for ProdosCommonDirectoryHeader.
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* @param fileEntry
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*/
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public ProdosCommonDirectoryHeader(byte[] fileEntry) {
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super(fileEntry);
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}
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/**
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* Get the length of each entry. Expected to be 0x27.
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*/
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public int getEntryLength() {
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return AppleUtil.getUnsignedByte(getFileEntry()[0x1f]);
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}
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/**
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* Get the number of entries per block. Expected to be 0x0d.
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*/
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public int getEntriesPerBlock() {
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return AppleUtil.getUnsignedByte(getFileEntry()[0x20]);
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}
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/**
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* Get the number of active entries in the volume directory.
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*/
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public int getFileCount() {
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return AppleUtil.getWordValue(getFileEntry(), 0x21);
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}
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/**
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* Get the block number of the bit map.
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*/
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public int getBitMapPointer() {
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return AppleUtil.getWordValue(getFileEntry(), 0x23);
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}
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/**
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* Get the total number of blocks on this volume.
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*/
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public int getTotalBlocks() {
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return AppleUtil.getWordValue(getFileEntry(), 0x25);
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}
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}
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