117 lines
3.7 KiB
Java
Executable File
117 lines
3.7 KiB
Java
Executable File
package com.bytezone.diskbrowser.disk;
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// -----------------------------------------------------------------------------------//
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public class AppleDiskAddress implements DiskAddress
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// -----------------------------------------------------------------------------------//
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{
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private final int block;
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private final int track;
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private final int sector;
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public final Disk owner;
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private boolean zeroFlag;
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// ---------------------------------------------------------------------------------//
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public AppleDiskAddress (Disk owner, int block)
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// ---------------------------------------------------------------------------------//
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{
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this.owner = owner;
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this.block = block;
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int sectorsPerTrack = owner.getBlocksPerTrack ();
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if (sectorsPerTrack == 0)
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{
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track = 0;
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sector = 0;
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}
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else
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{
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track = block / sectorsPerTrack;
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sector = block % sectorsPerTrack;
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}
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}
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// ---------------------------------------------------------------------------------//
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public AppleDiskAddress (Disk owner, int track, int sector)
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// ---------------------------------------------------------------------------------//
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{
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this.owner = owner;
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zeroFlag = (track & 0x40) == 0x40;
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this.track = track & 0x3F;
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this.sector = sector & 0x1F;
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this.block = this.track * owner.getBlocksPerTrack () + this.sector;
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}
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// ---------------------------------------------------------------------------------//
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public boolean zeroFlag ()
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// ---------------------------------------------------------------------------------//
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{
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return zeroFlag;
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public int compareTo (DiskAddress that)
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// ---------------------------------------------------------------------------------//
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{
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return this.block - that.getBlockNo ();
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public boolean matches (DiskAddress that)
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// ---------------------------------------------------------------------------------//
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{
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if (that == null)
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return false;
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return this.block == that.getBlockNo ();
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public boolean isZero ()
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// ---------------------------------------------------------------------------------//
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{
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return block == 0;
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public int getBlockNo ()
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// ---------------------------------------------------------------------------------//
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{
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return block;
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public int getSectorNo ()
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// ---------------------------------------------------------------------------------//
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{
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return sector;
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public int getTrackNo ()
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// ---------------------------------------------------------------------------------//
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{
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return track;
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public Disk getDisk ()
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// ---------------------------------------------------------------------------------//
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{
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return owner;
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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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return String.format ("[Block=%02X, Track=%02X, Sector=%02X, Zero=%s]", block, track,
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sector, zeroFlag);
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}
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} |