70 lines
2.3 KiB
Java
70 lines
2.3 KiB
Java
package com.bytezone.diskbrowser.prodos.write;
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import static com.bytezone.diskbrowser.utilities.Utility.unsignedShort;
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import static com.bytezone.diskbrowser.utilities.Utility.writeShort;
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// -----------------------------------------------------------------------------------//
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public class VolumeDirectoryHeader extends DirectoryHeader
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// -----------------------------------------------------------------------------------//
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{
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int bitMapPointer = 0x06;
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int totalBlocks;
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// ---------------------------------------------------------------------------------//
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public VolumeDirectoryHeader (ProdosDisk disk, int ptr)
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// ---------------------------------------------------------------------------------//
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{
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super (disk, ptr);
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storageType = (byte) 0x0F;
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}
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// ---------------------------------------------------------------------------------//
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@Override
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void read ()
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// ---------------------------------------------------------------------------------//
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{
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super.read ();
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bitMapPointer = unsignedShort (buffer, ptr + 0x23);
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totalBlocks = unsignedShort (buffer, ptr + 0x25);
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}
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// ---------------------------------------------------------------------------------//
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@Override
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void write ()
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// ---------------------------------------------------------------------------------//
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{
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super.write ();
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writeShort (buffer, ptr + 0x23, bitMapPointer);
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writeShort (buffer, ptr + 0x25, totalBlocks);
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}
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// ---------------------------------------------------------------------------------//
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@Override
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String toText ()
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// ---------------------------------------------------------------------------------//
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{
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return String.format ("%-29s %04X %04X", super.toText (), totalBlocks, bitMapPointer);
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public String toString ()
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// ---------------------------------------------------------------------------------//
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{
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StringBuilder text = new StringBuilder ();
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text.append (UNDERLINE);
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text.append ("Volume Directory Header\n");
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text.append (UNDERLINE);
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text.append (super.toString ());
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text.append (String.format ("Bitmap pointer ... %02X%n", bitMapPointer));
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text.append (String.format ("Total blocks ..... %d%n", totalBlocks));
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text.append (UNDERLINE);
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return text.toString ();
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}
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}
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