mirror of
https://github.com/dmolony/DiskBrowser.git
synced 2024-06-03 01:29:32 +00:00
126 lines
3.1 KiB
Java
126 lines
3.1 KiB
Java
package com.bytezone.diskbrowser.pascal;
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import com.bytezone.diskbrowser.applefile.*;
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import com.bytezone.diskbrowser.utilities.FileFormatException;
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import com.bytezone.diskbrowser.utilities.HexFormatter;
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class FileEntry extends CatalogEntry
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{
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int bytesUsedInLastBlock;
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public FileEntry (PascalDisk parent, byte[] buffer)
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{
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super (parent, buffer);
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bytesUsedInLastBlock = HexFormatter.intValue (buffer[22], buffer[23]);
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date = HexFormatter.getPascalDate (buffer, 24);
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for (int i = firstBlock; i < lastBlock; i++)
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{
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if (i >= 280)
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break;
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switch (fileType)
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{
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case 2:
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parent.sectorTypes[i] = parent.codeSector;
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break;
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case 3:
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parent.sectorTypes[i] = parent.textSector;
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break;
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case 4:
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parent.sectorTypes[i] = parent.infoSector;
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break;
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case 5:
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parent.sectorTypes[i] = parent.dataSector;
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break;
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case 6:
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parent.sectorTypes[i] = parent.grafSector;
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break;
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case 7:
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parent.sectorTypes[i] = parent.fotoSector;
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break;
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default:
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System.out.println ("Unknown pascal file type : " + fileType);
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parent.sectorTypes[i] = parent.dataSector;
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break;
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}
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}
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}
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@Override
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public AbstractFile getDataSource ()
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{
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if (file != null)
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return file;
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byte[] buffer = getExactBuffer ();
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switch (fileType)
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{
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case 2: // code (6502 or Pascal)
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try
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{
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file = new PascalCode (name, buffer);
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}
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catch (FileFormatException e)
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{
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if (name.equals ("SYSTEM.INTERP"))
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file = new AssemblerProgram (name, buffer, 0xD000);
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else
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file = new AssemblerProgram (name, buffer, 0);
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}
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break;
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case 3:
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file = new PascalText (name, buffer);
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break;
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case 4:
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file = new PascalInfo (name, buffer);
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break;
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case 5: // data
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if (name.equals ("SYSTEM.CHARSET"))
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file = new Charset (name, buffer);
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// else if (name.equals ("WT")) // only testing
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// file = new WizardryTitle (name, buffer);
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else if (name.equals ("SYSTEM.RELOC"))
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file = new Relocator (name, buffer);
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else
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file = new DefaultAppleFile (name, buffer);
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break;
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case 0: // volume
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break;
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default: // unknown
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file = new DefaultAppleFile (name, buffer);
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}
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return file;
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}
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private byte[] getExactBuffer ()
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{
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byte[] buffer = parent.getDisk ().readSectors (blocks);
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byte[] exactBuffer;
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if (bytesUsedInLastBlock < 512)
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{
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int exactLength = buffer.length - 512 + bytesUsedInLastBlock;
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exactBuffer = new byte[exactLength];
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System.arraycopy (buffer, 0, exactBuffer, 0, exactLength);
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}
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else
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exactBuffer = buffer;
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return exactBuffer;
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}
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} |