mirror of
https://github.com/dmolony/DiskBrowser.git
synced 2025-02-19 12:30:27 +00:00
method header lines
This commit is contained in:
Denis Molony
parent
04557bab39
commit
add2b8f946
@ -28,7 +28,9 @@ import com.bytezone.diskbrowser.gui.DataSource;
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import com.bytezone.diskbrowser.utilities.HexFormatter;
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import com.bytezone.diskbrowser.utilities.Utility;
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// -----------------------------------------------------------------------------------//
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abstract class AbstractCatalogEntry implements AppleFileSource
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// -----------------------------------------------------------------------------------//
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{
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protected Disk disk;
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protected DosDisk dosDisk;
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@ -47,8 +49,9 @@ abstract class AbstractCatalogEntry implements AppleFileSource
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private CatalogEntry link;
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public AbstractCatalogEntry (DosDisk dosDisk, DiskAddress catalogSector,
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byte[] entryBuffer)
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// ---------------------------------------------------------------------------------//
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AbstractCatalogEntry (DosDisk dosDisk, DiskAddress catalogSector, byte[] entryBuffer)
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// ---------------------------------------------------------------------------------//
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{
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this.dosDisk = dosDisk;
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this.disk = dosDisk.getDisk ();
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@ -88,7 +91,9 @@ abstract class AbstractCatalogEntry implements AppleFileSource
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catalogName = getName (base, entryBuffer).replace ("^", "");
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}
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// ---------------------------------------------------------------------------------//
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private String getName (String base, byte[] buffer)
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// ---------------------------------------------------------------------------------//
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{
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StringBuilder text = new StringBuilder (base);
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int max = buffer[0] == (byte) 0xFF ? 32 : 33;
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@ -115,7 +120,9 @@ abstract class AbstractCatalogEntry implements AppleFileSource
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return text.toString ();
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}
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// ---------------------------------------------------------------------------------//
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protected String getFileType ()
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// ---------------------------------------------------------------------------------//
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{
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switch (fileType)
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{
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@ -143,15 +150,19 @@ abstract class AbstractCatalogEntry implements AppleFileSource
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// maybe this should be in the FormattedDisk
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// maybe DiskAddress should have a 'valid' flag
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// ---------------------------------------------------------------------------------//
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protected DiskAddress getValidAddress (byte[] buffer, int offset)
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// ---------------------------------------------------------------------------------//
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{
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if (disk.isValidAddress (buffer[offset], buffer[offset + 1]))
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return disk.getDiskAddress (buffer[offset], buffer[offset + 1]);
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return null;
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public DataSource getDataSource ()
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// ---------------------------------------------------------------------------------//
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{
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if (appleFile != null)
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return appleFile;
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@ -297,7 +308,9 @@ abstract class AbstractCatalogEntry implements AppleFileSource
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return appleFile;
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}
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// ---------------------------------------------------------------------------------//
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private byte[] getExactBuffer (byte[] buffer)
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// ---------------------------------------------------------------------------------//
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{
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byte[] exactBuffer;
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@ -319,14 +332,18 @@ abstract class AbstractCatalogEntry implements AppleFileSource
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return exactBuffer;
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}
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// ---------------------------------------------------------------------------------//
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private boolean isRunCommand (byte[] buffer)
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// ---------------------------------------------------------------------------------//
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{
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// see Stargate - Disk 1, Side A.woz
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return buffer[0] == 0x4C && buffer[1] == (byte) 0xFC && buffer[2] == (byte) 0xA4
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&& buffer[3] == 0x00;
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}
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// ---------------------------------------------------------------------------------//
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private boolean isScrunched (int reportedLength)
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// ---------------------------------------------------------------------------------//
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{
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if ((name.equals ("FLY LOGO") || name.equals ("FLY LOGO SCRUNCHED"))
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&& reportedLength == 0x14FA)
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@ -338,8 +355,10 @@ abstract class AbstractCatalogEntry implements AppleFileSource
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return false;
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public boolean contains (DiskAddress da)
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// ---------------------------------------------------------------------------------//
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{
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for (DiskAddress sector : tsSectors)
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if (sector.matches (da))
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@ -354,21 +373,27 @@ abstract class AbstractCatalogEntry implements AppleFileSource
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return false;
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public String getUniqueName ()
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// ---------------------------------------------------------------------------------//
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{
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// this might not be unique if the file has been deleted
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return name;
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public FormattedDisk getFormattedDisk ()
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// ---------------------------------------------------------------------------------//
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{
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return dosDisk;
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public List<DiskAddress> getSectors ()
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// ---------------------------------------------------------------------------------//
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{
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List<DiskAddress> sectors = new ArrayList<> ();
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sectors.add (catalogSectorDA);
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@ -377,13 +402,17 @@ abstract class AbstractCatalogEntry implements AppleFileSource
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return sectors;
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}
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// ---------------------------------------------------------------------------------//
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void link (CatalogEntry catalogEntry)
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// ---------------------------------------------------------------------------------//
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{
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this.link = catalogEntry;
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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 catalogName;
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}
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@ -5,13 +5,17 @@ import com.bytezone.diskbrowser.disk.DiskAddress;
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import com.bytezone.diskbrowser.dos.DosDisk.FileType;
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import com.bytezone.diskbrowser.utilities.HexFormatter;
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// -----------------------------------------------------------------------------------//
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class CatalogEntry extends AbstractCatalogEntry
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// -----------------------------------------------------------------------------------//
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{
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private int textFileGaps;
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private int length;
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private int address;
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public CatalogEntry (DosDisk dosDisk, DiskAddress catalogSector, byte[] entryBuffer)
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// ---------------------------------------------------------------------------------//
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CatalogEntry (DosDisk dosDisk, DiskAddress catalogSector, byte[] entryBuffer)
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// ---------------------------------------------------------------------------------//
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{
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super (dosDisk, catalogSector, entryBuffer); // build lists of ts and data sectors
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@ -127,7 +131,9 @@ class CatalogEntry extends AbstractCatalogEntry
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}
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}
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public String getDetails ()
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// ---------------------------------------------------------------------------------//
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String getDetails ()
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// ---------------------------------------------------------------------------------//
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{
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int actualSize = dataSectors.size () + tsSectors.size () - textFileGaps;
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String addressText = address == 0 ? "" : String.format ("$%4X", address);
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@ -5,13 +5,17 @@ import com.bytezone.diskbrowser.disk.AppleDiskAddress;
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import com.bytezone.diskbrowser.disk.DiskAddress;
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import com.bytezone.diskbrowser.gui.DataSource;
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// -----------------------------------------------------------------------------------//
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class DeletedCatalogEntry extends AbstractCatalogEntry
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// -----------------------------------------------------------------------------------//
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{
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boolean allSectorsAvailable = true;
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boolean debug = false;
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public DeletedCatalogEntry (DosDisk dosDisk, DiskAddress catalogSector,
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byte[] entryBuffer, int dosVersion)
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// ---------------------------------------------------------------------------------//
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DeletedCatalogEntry (DosDisk dosDisk, DiskAddress catalogSector, byte[] entryBuffer,
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int dosVersion)
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// ---------------------------------------------------------------------------------//
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{
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super (dosDisk, catalogSector, entryBuffer);
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@ -93,15 +97,19 @@ class DeletedCatalogEntry extends AbstractCatalogEntry
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allSectorsAvailable = false;
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public String getUniqueName ()
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// ---------------------------------------------------------------------------------//
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{
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// name might not be unique if the file has been deleted
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return "!" + name;
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public DataSource getDataSource ()
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// ---------------------------------------------------------------------------------//
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{
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if (!allSectorsAvailable && appleFile == null)
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{
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@ -112,7 +120,9 @@ class DeletedCatalogEntry extends AbstractCatalogEntry
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return super.getDataSource ();
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}
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public String getDetails ()
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// ---------------------------------------------------------------------------------//
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String getDetails ()
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// ---------------------------------------------------------------------------------//
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{
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return String.format ("%-30s %s", name,
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allSectorsAvailable ? "Recoverable" : "Not recoverable");
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@ -1,154 +1,167 @@
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package com.bytezone.diskbrowser.dos;
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import com.bytezone.diskbrowser.disk.AbstractSector;
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import com.bytezone.diskbrowser.disk.Disk;
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import com.bytezone.diskbrowser.disk.DiskAddress;
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import com.bytezone.diskbrowser.utilities.HexFormatter;
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import com.bytezone.diskbrowser.utilities.Utility;
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class DosCatalogSector extends AbstractSector
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{
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private static final String[] fileTypes =
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{ "Text file", "Integer Basic program", "Applesoft Basic program", "Binary file",
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"SS file", "Relocatable file", "AA file", "Lisa file" };
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private static int CATALOG_ENTRY_SIZE = 35;
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private final DosDisk dosDisk;
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public DosCatalogSector (DosDisk dosDisk, Disk disk, byte[] buffer,
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DiskAddress diskAddress)
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{
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super (disk, buffer, diskAddress);
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this.dosDisk = dosDisk;
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}
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@Override
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public String createText ()
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{
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StringBuilder text =
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getHeader ("DOS " + dosDisk.getVersionText () + " Catalog Sector");
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addText (text, buffer, 0, 1, "Not used");
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addText (text, buffer, 1, 2, "Next catalog track/sector");
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addText (text, buffer, 3, 4, "Not used");
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addText (text, buffer, 7, 4, "Not used");
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boolean dos4 = dosDisk.getVersion () > 3;
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for (int i = 11; i <= 255; i += CATALOG_ENTRY_SIZE)
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{
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text.append ("\n");
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if (dos4)
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createDos4Text (text, i);
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else
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createDos3Text (text, i);
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}
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text.deleteCharAt (text.length () - 1);
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return text.toString ();
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}
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private void createDos4Text (StringBuilder text, int i)
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{
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int track = buffer[i] & 0x3F;
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int sector = buffer[i + 1] & 0x1F;
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int fileType = buffer[i + 2] & 0x7F;
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boolean deleteFlag = (buffer[i] & 0x80) != 0;
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boolean zeroTrackFlag = (buffer[i] & 0x40) != 0;
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boolean lockedFlag = (buffer[i + 2] & 0x80) != 0;
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if (buffer[i] == 0 && !zeroTrackFlag)
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{
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addText (text, buffer, i + 0, 2, "");
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addText (text, buffer, i + 2, 1, "");
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addText (text, buffer, i + 3, 4, "");
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addText (text, buffer, i + 33, 2, "");
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}
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else
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{
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addText (text, buffer, i, 1,
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String.format ("TS list track (%s, %s)", deleteFlag ? "deleted" : "not deleted",
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zeroTrackFlag ? "track zero" : "not track zero"));
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addText (text, buffer, i + 1, 1, "TS list sector");
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addText (text, buffer, i + 2, 1,
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String.format ("File type (%s)", lockedFlag ? "locked" : "unlocked"));
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addText (text, buffer, i + 3, 4, getName (buffer, i + 3, 24));
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for (int j = 0; j < 20; j += 4)
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addText (text, buffer, i + 7 + j, 4, "");
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addText (text, buffer, i + 27, 3,
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"Date/time initialised: " + Utility.getDateTime (buffer, i + 27));
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addText (text, buffer, i + 30, 3, "");
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addTextAndDecimal (text, buffer, i + 33, 2, "File size");
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}
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}
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private void createDos3Text (StringBuilder text, int i)
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{
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if (buffer[i] == (byte) 0xFF) // file is deleted
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{
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addText (text, buffer, i, 2, "DEL: file @ " + HexFormatter.format2 (buffer[i + 32])
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+ " " + HexFormatter.format2 (buffer[i + 1]));
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addText (text, buffer, i + 2, 1, "DEL: File type " + getType (buffer[i + 2]));
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if (buffer[i + 3] == 0)
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addText (text, buffer, i + 3, 4, "");
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else
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addText (text, buffer, i + 3, 4, "DEL: " + getName (buffer, i + 3, 29));
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addTextAndDecimal (text, buffer, i + 33, 2, "DEL: Sector count");
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}
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else if (buffer[i] > 0) // file exists
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{
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addText (text, buffer, i, 2, "TS list track/sector");
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addText (text, buffer, i + 2, 1, "File type " + getType (buffer[i + 2]));
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if (buffer[i + 3] == 0)
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addText (text, buffer, i + 3, 4, "");
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else
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{
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addText (text, buffer, i + 3, 4, getName (buffer, i + 3, 30));
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for (int j = 0; j < 24; j += 4)
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addText (text, buffer, i + j + 7, 4, "");
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addText (text, buffer, i + 31, 2, "");
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}
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addTextAndDecimal (text, buffer, i + 33, 2, "Sector count");
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}
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else // no file
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{
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addText (text, buffer, i + 0, 2, "");
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addText (text, buffer, i + 2, 1, "");
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addText (text, buffer, i + 3, 4, "");
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addText (text, buffer, i + 33, 2, "");
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}
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}
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private String getName (byte[] buffer, int offset, int length)
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{
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StringBuilder text = new StringBuilder ();
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// int max = buffer[offset] == (byte) 0xFF ? 32 : 33;
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for (int i = offset; i < offset + length; i++)
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{
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int c = buffer[i] & 0xFF;
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if (c == 136)
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{
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if (text.length () > 0)
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text.deleteCharAt (text.length () - 1);
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continue;
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}
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if (c > 127)
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c -= c < 160 ? 64 : 128;
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if (c < 32) // non-printable
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text.append ("^" + (char) (c + 64));
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else
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text.append ((char) c); // standard ascii
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}
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return text.toString ();
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}
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private String getType (byte value)
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{
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int type = value & 0x7F;
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boolean locked = (value & 0x80) > 0;
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int val = 7;
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for (int i = 64; i > type; val--, i /= 2)
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;
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return "(" + fileTypes[val] + (locked ? ", locked)" : ", unlocked)");
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}
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package com.bytezone.diskbrowser.dos;
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import com.bytezone.diskbrowser.disk.AbstractSector;
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import com.bytezone.diskbrowser.disk.Disk;
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import com.bytezone.diskbrowser.disk.DiskAddress;
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import com.bytezone.diskbrowser.utilities.HexFormatter;
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import com.bytezone.diskbrowser.utilities.Utility;
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// -----------------------------------------------------------------------------------//
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class DosCatalogSector extends AbstractSector
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// -----------------------------------------------------------------------------------//
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{
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private static final String[] fileTypes =
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{ "Text file", "Integer Basic program", "Applesoft Basic program", "Binary file",
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"SS file", "Relocatable file", "AA file", "Lisa file" };
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private static int CATALOG_ENTRY_SIZE = 35;
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private final DosDisk dosDisk;
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// ---------------------------------------------------------------------------------//
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DosCatalogSector (DosDisk dosDisk, Disk disk, byte[] buffer, DiskAddress diskAddress)
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// ---------------------------------------------------------------------------------//
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{
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super (disk, buffer, diskAddress);
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this.dosDisk = dosDisk;
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}
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// ---------------------------------------------------------------------------------//
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@Override
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public String createText ()
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// ---------------------------------------------------------------------------------//
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{
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StringBuilder text =
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getHeader ("DOS " + dosDisk.getVersionText () + " Catalog Sector");
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addText (text, buffer, 0, 1, "Not used");
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addText (text, buffer, 1, 2, "Next catalog track/sector");
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addText (text, buffer, 3, 4, "Not used");
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addText (text, buffer, 7, 4, "Not used");
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boolean dos4 = dosDisk.getVersion () > 3;
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for (int i = 11; i <= 255; i += CATALOG_ENTRY_SIZE)
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{
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text.append ("\n");
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if (dos4)
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createDos4Text (text, i);
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else
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createDos3Text (text, i);
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}
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text.deleteCharAt (text.length () - 1);
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return text.toString ();
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}
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// ---------------------------------------------------------------------------------//
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private void createDos4Text (StringBuilder text, int i)
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// ---------------------------------------------------------------------------------//
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{
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int track = buffer[i] & 0x3F;
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int sector = buffer[i + 1] & 0x1F;
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int fileType = buffer[i + 2] & 0x7F;
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boolean deleteFlag = (buffer[i] & 0x80) != 0;
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boolean zeroTrackFlag = (buffer[i] & 0x40) != 0;
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boolean lockedFlag = (buffer[i + 2] & 0x80) != 0;
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if (buffer[i] == 0 && !zeroTrackFlag)
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{
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addText (text, buffer, i + 0, 2, "");
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addText (text, buffer, i + 2, 1, "");
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addText (text, buffer, i + 3, 4, "");
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addText (text, buffer, i + 33, 2, "");
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}
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else
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{
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addText (text, buffer, i, 1,
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String.format ("TS list track (%s, %s)", deleteFlag ? "deleted" : "not deleted",
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zeroTrackFlag ? "track zero" : "not track zero"));
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addText (text, buffer, i + 1, 1, "TS list sector");
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addText (text, buffer, i + 2, 1,
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String.format ("File type (%s)", lockedFlag ? "locked" : "unlocked"));
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addText (text, buffer, i + 3, 4, getName (buffer, i + 3, 24));
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for (int j = 0; j < 20; j += 4)
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addText (text, buffer, i + 7 + j, 4, "");
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addText (text, buffer, i + 27, 3,
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"Date/time initialised: " + Utility.getDateTime (buffer, i + 27));
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addText (text, buffer, i + 30, 3, "");
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addTextAndDecimal (text, buffer, i + 33, 2, "File size");
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}
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}
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// ---------------------------------------------------------------------------------//
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private void createDos3Text (StringBuilder text, int i)
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// ---------------------------------------------------------------------------------//
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{
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if (buffer[i] == (byte) 0xFF) // file is deleted
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{
|
||||
addText (text, buffer, i, 2, "DEL: file @ " + HexFormatter.format2 (buffer[i + 32])
|
||||
+ " " + HexFormatter.format2 (buffer[i + 1]));
|
||||
addText (text, buffer, i + 2, 1, "DEL: File type " + getType (buffer[i + 2]));
|
||||
if (buffer[i + 3] == 0)
|
||||
addText (text, buffer, i + 3, 4, "");
|
||||
else
|
||||
addText (text, buffer, i + 3, 4, "DEL: " + getName (buffer, i + 3, 29));
|
||||
addTextAndDecimal (text, buffer, i + 33, 2, "DEL: Sector count");
|
||||
}
|
||||
else if (buffer[i] > 0) // file exists
|
||||
{
|
||||
addText (text, buffer, i, 2, "TS list track/sector");
|
||||
addText (text, buffer, i + 2, 1, "File type " + getType (buffer[i + 2]));
|
||||
if (buffer[i + 3] == 0)
|
||||
addText (text, buffer, i + 3, 4, "");
|
||||
else
|
||||
{
|
||||
addText (text, buffer, i + 3, 4, getName (buffer, i + 3, 30));
|
||||
for (int j = 0; j < 24; j += 4)
|
||||
addText (text, buffer, i + j + 7, 4, "");
|
||||
addText (text, buffer, i + 31, 2, "");
|
||||
}
|
||||
addTextAndDecimal (text, buffer, i + 33, 2, "Sector count");
|
||||
}
|
||||
else // no file
|
||||
{
|
||||
addText (text, buffer, i + 0, 2, "");
|
||||
addText (text, buffer, i + 2, 1, "");
|
||||
addText (text, buffer, i + 3, 4, "");
|
||||
addText (text, buffer, i + 33, 2, "");
|
||||
}
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
private String getName (byte[] buffer, int offset, int length)
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
StringBuilder text = new StringBuilder ();
|
||||
// int max = buffer[offset] == (byte) 0xFF ? 32 : 33;
|
||||
for (int i = offset; i < offset + length; i++)
|
||||
{
|
||||
int c = buffer[i] & 0xFF;
|
||||
if (c == 136)
|
||||
{
|
||||
if (text.length () > 0)
|
||||
text.deleteCharAt (text.length () - 1);
|
||||
continue;
|
||||
}
|
||||
if (c > 127)
|
||||
c -= c < 160 ? 64 : 128;
|
||||
if (c < 32) // non-printable
|
||||
text.append ("^" + (char) (c + 64));
|
||||
else
|
||||
text.append ((char) c); // standard ascii
|
||||
}
|
||||
return text.toString ();
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
private String getType (byte value)
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
int type = value & 0x7F;
|
||||
boolean locked = (value & 0x80) > 0;
|
||||
int val = 7;
|
||||
for (int i = 64; i > type; val--, i /= 2)
|
||||
;
|
||||
return "(" + fileTypes[val] + (locked ? ", locked)" : ", unlocked)");
|
||||
}
|
||||
}
|
||||
File diff suppressed because it is too large
Load Diff
@ -1,82 +1,92 @@
|
||||
package com.bytezone.diskbrowser.dos;
|
||||
|
||||
import com.bytezone.diskbrowser.disk.AbstractSector;
|
||||
import com.bytezone.diskbrowser.disk.Disk;
|
||||
import com.bytezone.diskbrowser.disk.DiskAddress;
|
||||
import com.bytezone.diskbrowser.utilities.HexFormatter;
|
||||
|
||||
class DosTSListSector extends AbstractSector
|
||||
{
|
||||
private final String name;
|
||||
|
||||
public DosTSListSector (String name, Disk disk, byte[] buffer, DiskAddress diskAddress)
|
||||
{
|
||||
super (disk, buffer, diskAddress);
|
||||
this.name = name;
|
||||
}
|
||||
|
||||
public boolean isValid (DosDisk dosDisk)
|
||||
{
|
||||
// what is the count of blocks? does it match? this sector can't tell, there
|
||||
// might be more than one TS list
|
||||
|
||||
// validate the sector, throw an exception if invalid
|
||||
for (int i = 12; i < buffer.length; i += 2)
|
||||
{
|
||||
DiskAddress da = getValidAddress (buffer, i);
|
||||
if (da == null)
|
||||
{
|
||||
System.out.println ("Invalid sector address : null");
|
||||
break; // throw exception?
|
||||
}
|
||||
|
||||
if (da.getBlock () > 0 && dosDisk.stillAvailable (da))
|
||||
{
|
||||
System.out.println ("Invalid sector address : " + da);
|
||||
break; // throw exception?
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
// this is in too many places
|
||||
protected DiskAddress getValidAddress (byte[] buffer, int offset)
|
||||
{
|
||||
if (disk.isValidAddress (buffer[offset], buffer[offset + 1]))
|
||||
return disk.getDiskAddress (buffer[offset], buffer[offset + 1]);
|
||||
return null;
|
||||
}
|
||||
|
||||
@Override
|
||||
public String createText ()
|
||||
{
|
||||
DiskAddress da = disk.getDiskAddress (buffer[1], buffer[2]);
|
||||
String msg = da.matches (diskAddress) ? " (circular reference)" : "";
|
||||
|
||||
StringBuilder text = getHeader ("TS List Sector : " + name);
|
||||
addText (text, buffer, 0, 1, "Not used");
|
||||
addText (text, buffer, 1, 2, "Next TS list track/sector" + msg);
|
||||
addText (text, buffer, 3, 2, "Not used");
|
||||
addTextAndDecimal (text, buffer, 5, 2, "Sector base number");
|
||||
addText (text, buffer, 7, 4, "Not used");
|
||||
addText (text, buffer, 11, 1, "Not used");
|
||||
|
||||
int sectorBase = HexFormatter.intValue (buffer[5], buffer[6]);
|
||||
|
||||
for (int i = 12; i <= 255; i += 2)
|
||||
{
|
||||
if (buffer[i] == 0 && buffer[i + 1] == 0)
|
||||
msg = "";
|
||||
else
|
||||
{
|
||||
String msg2 = buffer[i] == 0x40 ? " - track zero" : "";
|
||||
msg = String.format ("Track/sector of file sector %04X (%<,d)%s",
|
||||
((i - 12) / 2 + sectorBase), msg2);
|
||||
}
|
||||
addText (text, buffer, i, 2, msg);
|
||||
}
|
||||
|
||||
text.deleteCharAt (text.length () - 1);
|
||||
return text.toString ();
|
||||
}
|
||||
package com.bytezone.diskbrowser.dos;
|
||||
|
||||
import com.bytezone.diskbrowser.disk.AbstractSector;
|
||||
import com.bytezone.diskbrowser.disk.Disk;
|
||||
import com.bytezone.diskbrowser.disk.DiskAddress;
|
||||
import com.bytezone.diskbrowser.utilities.HexFormatter;
|
||||
|
||||
// -----------------------------------------------------------------------------------//
|
||||
class DosTSListSector extends AbstractSector
|
||||
// -----------------------------------------------------------------------------------//
|
||||
{
|
||||
private final String name;
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
DosTSListSector (String name, Disk disk, byte[] buffer, DiskAddress diskAddress)
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
super (disk, buffer, diskAddress);
|
||||
this.name = name;
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
public boolean isValid (DosDisk dosDisk)
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
// what is the count of blocks? does it match? this sector can't tell, there
|
||||
// might be more than one TS list
|
||||
|
||||
// validate the sector, throw an exception if invalid
|
||||
for (int i = 12; i < buffer.length; i += 2)
|
||||
{
|
||||
DiskAddress da = getValidAddress (buffer, i);
|
||||
if (da == null)
|
||||
{
|
||||
System.out.println ("Invalid sector address : null");
|
||||
break; // throw exception?
|
||||
}
|
||||
|
||||
if (da.getBlock () > 0 && dosDisk.stillAvailable (da))
|
||||
{
|
||||
System.out.println ("Invalid sector address : " + da);
|
||||
break; // throw exception?
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
// this is in too many places
|
||||
// ---------------------------------------------------------------------------------//
|
||||
protected DiskAddress getValidAddress (byte[] buffer, int offset)
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
if (disk.isValidAddress (buffer[offset], buffer[offset + 1]))
|
||||
return disk.getDiskAddress (buffer[offset], buffer[offset + 1]);
|
||||
return null;
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
@Override
|
||||
public String createText ()
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
DiskAddress da = disk.getDiskAddress (buffer[1], buffer[2]);
|
||||
String msg = da.matches (diskAddress) ? " (circular reference)" : "";
|
||||
|
||||
StringBuilder text = getHeader ("TS List Sector : " + name);
|
||||
addText (text, buffer, 0, 1, "Not used");
|
||||
addText (text, buffer, 1, 2, "Next TS list track/sector" + msg);
|
||||
addText (text, buffer, 3, 2, "Not used");
|
||||
addTextAndDecimal (text, buffer, 5, 2, "Sector base number");
|
||||
addText (text, buffer, 7, 4, "Not used");
|
||||
addText (text, buffer, 11, 1, "Not used");
|
||||
|
||||
int sectorBase = HexFormatter.intValue (buffer[5], buffer[6]);
|
||||
|
||||
for (int i = 12; i <= 255; i += 2)
|
||||
{
|
||||
if (buffer[i] == 0 && buffer[i + 1] == 0)
|
||||
msg = "";
|
||||
else
|
||||
{
|
||||
String msg2 = buffer[i] == 0x40 ? " - track zero" : "";
|
||||
msg = String.format ("Track/sector of file sector %04X (%<,d)%s",
|
||||
((i - 12) / 2 + sectorBase), msg2);
|
||||
}
|
||||
addText (text, buffer, i, 2, msg);
|
||||
}
|
||||
|
||||
text.deleteCharAt (text.length () - 1);
|
||||
return text.toString ();
|
||||
}
|
||||
}
|
||||
@ -1,290 +1,307 @@
|
||||
package com.bytezone.diskbrowser.dos;
|
||||
|
||||
import com.bytezone.diskbrowser.disk.AbstractSector;
|
||||
import com.bytezone.diskbrowser.disk.Disk;
|
||||
import com.bytezone.diskbrowser.disk.DiskAddress;
|
||||
import com.bytezone.diskbrowser.utilities.HexFormatter;
|
||||
import com.bytezone.diskbrowser.utilities.Utility;
|
||||
|
||||
class DosVTOCSector extends AbstractSector
|
||||
{
|
||||
DosDisk parentDisk;
|
||||
int volume;
|
||||
int dosVersion; // 1, 2, 3 or 0x41, 0x42, 0x43...
|
||||
int maxTSPairs;
|
||||
int lastAllocTrack;
|
||||
int direction;
|
||||
int freeSectors;
|
||||
int usedSectors;
|
||||
int sectorSize;
|
||||
int maxSectors;
|
||||
int maxTracks;
|
||||
|
||||
public DosVTOCSector (DosDisk parentDisk, Disk disk, byte[] buffer,
|
||||
DiskAddress diskAddress)
|
||||
{
|
||||
super (disk, buffer, diskAddress);
|
||||
|
||||
this.parentDisk = parentDisk;
|
||||
dosVersion = buffer[3];
|
||||
volume = buffer[6] & 0xFF;
|
||||
maxTSPairs = buffer[39];
|
||||
lastAllocTrack = buffer[48];
|
||||
direction = buffer[49];
|
||||
maxTracks = buffer[52] & 0xFF;
|
||||
maxSectors = buffer[53] & 0xFF;
|
||||
sectorSize = HexFormatter.intValue (buffer[54], buffer[55]);
|
||||
flagSectors2 ();
|
||||
}
|
||||
|
||||
@Override
|
||||
public String createText ()
|
||||
{
|
||||
return dosVersion <= 3 ? createDosText () : createDos4Text ();
|
||||
}
|
||||
|
||||
private String createDos4Text ()
|
||||
{
|
||||
StringBuilder text = getHeader ("DOS 4 VTOC Sector");
|
||||
addText (text, buffer, 0, 1, "Not used");
|
||||
addText (text, buffer, 1, 2, "First directory track/sector");
|
||||
addText (text, buffer, 3, 1, "DOS release number");
|
||||
addText (text, buffer, 4, 1, "Build number");
|
||||
addText (text, buffer, 5, 1, "Ram DOS " + (char) (buffer[5] & 0x7F));
|
||||
|
||||
addTextAndDecimal (text, buffer, 6, 1, "Diskette volume");
|
||||
String diskType =
|
||||
buffer[7] == (byte) 0xC4 ? " = Data" : buffer[7] == (byte) 0xC2 ? " = Boot" : "";
|
||||
addText (text, buffer, 7, 1, "Volume type: " + (char) (buffer[7] & 0x7F) + diskType);
|
||||
|
||||
int ptr = 8;
|
||||
addText (text, buffer, ptr, 4, "Volume name: " + getName (buffer, ptr));
|
||||
for (int j = 4; j < 24; j += 4)
|
||||
addText (text, buffer, ptr + j, 4, "");
|
||||
|
||||
addText (text, buffer, 0x20, 3,
|
||||
"Date/time initialised: " + Utility.getDateTime (buffer, 0x20));
|
||||
addText (text, buffer, 0x23, 3, "");
|
||||
addText (text, buffer, 0x26, 1, "VTOC Phase");
|
||||
|
||||
addTextAndDecimal (text, buffer, 0x27, 1, "Maximum TS pairs");
|
||||
addText (text, buffer, 0x28, 2, "Volume library");
|
||||
addText (text, buffer, 0x2A, 3,
|
||||
"Date/time modified: " + Utility.getDateTime (buffer, 0x2A));
|
||||
addText (text, buffer, 0x2D, 3, "");
|
||||
|
||||
addTextAndDecimal (text, buffer, 0x30, 1, "Last allocated track");
|
||||
addText (text, buffer, 0x31, 1, "Direction to look when allocating the next file");
|
||||
addText (text, buffer, 0x32, 2, "Not used");
|
||||
addTextAndDecimal (text, buffer, 0x34, 1, "Maximum tracks");
|
||||
addTextAndDecimal (text, buffer, 0x35, 1, "Maximum sectors");
|
||||
addTextAndDecimal (text, buffer, 0x36, 2, "Bytes per sector");
|
||||
|
||||
boolean bootSectorEmpty = parentDisk.getDisk ().isSectorEmpty (0);
|
||||
int firstSector = 0x38;
|
||||
int max = maxTracks * 4 + firstSector;
|
||||
for (int i = firstSector; i < max; i += 4)
|
||||
{
|
||||
String extra = "";
|
||||
if (i == firstSector && bootSectorEmpty)
|
||||
extra = "(unusable)";
|
||||
else if (i == 124)
|
||||
extra = "(VTOC and Catalog)";
|
||||
addText (text, buffer, i, 4, String.format ("Track %02X %s %s",
|
||||
(i - firstSector) / 4, getBitmap (buffer, i), extra));
|
||||
}
|
||||
|
||||
text.deleteCharAt (text.length () - 1);
|
||||
|
||||
return text.toString ();
|
||||
}
|
||||
|
||||
private String createDosText ()
|
||||
{
|
||||
StringBuilder text = getHeader ("VTOC Sector");
|
||||
addText (text, buffer, 0, 1, "Not used");
|
||||
addText (text, buffer, 1, 2, "First directory track/sector");
|
||||
addText (text, buffer, 3, 1, "DOS release number");
|
||||
addText (text, buffer, 4, 2, "Not used");
|
||||
addTextAndDecimal (text, buffer, 6, 1, "Diskette volume");
|
||||
addText (text, buffer, 7, 4, "Not used");
|
||||
addText (text, buffer, 11, 4, "Not used");
|
||||
addText (text, buffer, 15, 4, "Not used");
|
||||
addText (text, buffer, 19, 4, "Not used");
|
||||
addText (text, buffer, 23, 4, "Not used");
|
||||
addText (text, buffer, 27, 4, "Not used");
|
||||
addText (text, buffer, 31, 4, "Not used");
|
||||
addText (text, buffer, 35, 4, "Not used");
|
||||
addTextAndDecimal (text, buffer, 39, 1, "Maximum TS pairs");
|
||||
addText (text, buffer, 40, 4, "Not used");
|
||||
addText (text, buffer, 44, 4, "Not used");
|
||||
addTextAndDecimal (text, buffer, 48, 1, "Last allocated track");
|
||||
addText (text, buffer, 49, 1, "Direction to look when allocating the next file");
|
||||
addText (text, buffer, 50, 2, "Not used");
|
||||
addTextAndDecimal (text, buffer, 52, 1, "Maximum tracks");
|
||||
addTextAndDecimal (text, buffer, 53, 1, "Maximum sectors");
|
||||
addTextAndDecimal (text, buffer, 54, 2, "Bytes per sector");
|
||||
|
||||
boolean bootSectorEmpty = parentDisk.getDisk ().isSectorEmpty (0);
|
||||
int firstSector = 0x38;
|
||||
int max = maxTracks * 4 + firstSector;
|
||||
for (int i = firstSector; i < max; i += 4)
|
||||
{
|
||||
String extra = "";
|
||||
if (i == firstSector && bootSectorEmpty)
|
||||
extra = "(unusable)";
|
||||
String bits = getBitmap (buffer, i);
|
||||
int track = (i - firstSector) / 4;
|
||||
addText (text, buffer, i, 4,
|
||||
String.format ("Track %02X %s %s", track, bits, extra));
|
||||
}
|
||||
|
||||
text.deleteCharAt (text.length () - 1);
|
||||
|
||||
return text.toString ();
|
||||
}
|
||||
|
||||
// private String getBitmap (byte left, byte right)
|
||||
// {
|
||||
// StringBuilder text = new StringBuilder ();
|
||||
//
|
||||
// int base = maxSectors == 13 ? 3 : 0;
|
||||
// right >>= base;
|
||||
//
|
||||
// for (int i = base; i < 8; i++)
|
||||
// {
|
||||
// if ((right & 0x01) == 1)
|
||||
// text.append (".");
|
||||
// else
|
||||
// text.append ("X");
|
||||
// right >>= 1;
|
||||
// }
|
||||
//
|
||||
// for (int i = 0; i < 8; i++)
|
||||
// {
|
||||
// if ((left & 0x01) == 1)
|
||||
// text.append (".");
|
||||
// else
|
||||
// text.append ("X");
|
||||
// left >>= 1;
|
||||
// }
|
||||
//
|
||||
// return text.toString ();
|
||||
// }
|
||||
|
||||
private String getBitmap (byte[] buffer, int offset)
|
||||
{
|
||||
StringBuilder text = new StringBuilder ();
|
||||
int value = HexFormatter.getLongBigEndian (buffer, offset);
|
||||
|
||||
String bits = "0000000000000000000000000000000" + Integer.toBinaryString (value);
|
||||
bits = bits.substring (bits.length () - 32);
|
||||
bits = bits.substring (0, maxSectors);
|
||||
bits = bits.replace ('0', 'X');
|
||||
bits = bits.replace ('1', '.');
|
||||
text.append (bits);
|
||||
|
||||
return text.reverse ().toString ();
|
||||
}
|
||||
|
||||
private void flagSectors2 ()
|
||||
{
|
||||
int firstSector = 0x38;
|
||||
int max = maxTracks * 4 + firstSector;
|
||||
for (int i = firstSector; i < max; i += 4)
|
||||
{
|
||||
int track = (i - firstSector) / 4;
|
||||
String bits = getBitmap (buffer, i);
|
||||
|
||||
// System.out.printf ("%08X %s%n", track, bits);
|
||||
int blockNo = track * maxSectors;
|
||||
char[] chars = bits.toCharArray ();
|
||||
for (int sector = 0; sector < maxSectors; sector++)
|
||||
{
|
||||
// System.out.printf ("%3d %s%n", blockNo, chars[sector]);
|
||||
if (chars[sector] == '.')
|
||||
{
|
||||
parentDisk.setSectorFree (blockNo, true);
|
||||
++freeSectors;
|
||||
}
|
||||
else
|
||||
{
|
||||
parentDisk.setSectorFree (blockNo, false);
|
||||
++usedSectors;
|
||||
}
|
||||
++blockNo;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// private void flagSectors ()
|
||||
// {
|
||||
// int block = 0;
|
||||
// int base = maxSectors == 13 ? 3 : 0;
|
||||
// int firstSector = 0x38;
|
||||
// int max = maxTracks * 4 + firstSector;
|
||||
// for (int i = firstSector; i < max; i += 4)
|
||||
// {
|
||||
// block = check (buffer[i + 1], block, base);
|
||||
// block = check (buffer[i], block, 0);
|
||||
// }
|
||||
// }
|
||||
|
||||
// private int check (byte b, int block, int base)
|
||||
// {
|
||||
// b >>= base;
|
||||
// for (int i = base; i < 8; i++)
|
||||
// {
|
||||
// if ((b & 0x01) == 1)
|
||||
// {
|
||||
// parentDisk.setSectorFree (block, true);
|
||||
// ++freeSectors;
|
||||
// }
|
||||
// else
|
||||
// {
|
||||
// parentDisk.setSectorFree (block, false);
|
||||
// ++usedSectors;
|
||||
// }
|
||||
// block++;
|
||||
// b >>= 1;
|
||||
// }
|
||||
// return block;
|
||||
// }
|
||||
|
||||
// duplicate of DosCatalogSector.getName()
|
||||
private String getName (byte[] buffer, int offset)
|
||||
{
|
||||
StringBuilder text = new StringBuilder ();
|
||||
int max = 24;
|
||||
for (int i = 0; i < max; i++)
|
||||
{
|
||||
int c = buffer[i + offset] & 0xFF;
|
||||
if (c == 136)
|
||||
{
|
||||
if (text.length () > 0)
|
||||
text.deleteCharAt (text.length () - 1);
|
||||
continue;
|
||||
}
|
||||
if (c > 127)
|
||||
c -= c < 160 ? 64 : 128;
|
||||
if (c < 32) // non-printable
|
||||
text.append ("^" + (char) (c + 64));
|
||||
else
|
||||
text.append ((char) c); // standard ascii
|
||||
}
|
||||
return text.toString ();
|
||||
}
|
||||
|
||||
@Override
|
||||
public String toString ()
|
||||
{
|
||||
StringBuffer text = new StringBuffer ();
|
||||
text.append ("DOS version : 3." + dosVersion);
|
||||
text.append ("\nVolume : " + volume);
|
||||
text.append ("\nMax TS pairs : " + maxTSPairs);
|
||||
text.append ("\nLast allocated T : " + lastAllocTrack);
|
||||
text.append ("\nDirection : " + direction);
|
||||
|
||||
return text.toString ();
|
||||
}
|
||||
package com.bytezone.diskbrowser.dos;
|
||||
|
||||
import com.bytezone.diskbrowser.disk.AbstractSector;
|
||||
import com.bytezone.diskbrowser.disk.Disk;
|
||||
import com.bytezone.diskbrowser.disk.DiskAddress;
|
||||
import com.bytezone.diskbrowser.utilities.HexFormatter;
|
||||
import com.bytezone.diskbrowser.utilities.Utility;
|
||||
|
||||
// -----------------------------------------------------------------------------------//
|
||||
class DosVTOCSector extends AbstractSector
|
||||
// -----------------------------------------------------------------------------------//
|
||||
{
|
||||
DosDisk parentDisk;
|
||||
int volume;
|
||||
int dosVersion; // 1, 2, 3 or 0x41, 0x42, 0x43...
|
||||
int maxTSPairs;
|
||||
int lastAllocTrack;
|
||||
int direction;
|
||||
int freeSectors;
|
||||
int usedSectors;
|
||||
int sectorSize;
|
||||
int maxSectors;
|
||||
int maxTracks;
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
DosVTOCSector (DosDisk parentDisk, Disk disk, byte[] buffer, DiskAddress diskAddress)
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
super (disk, buffer, diskAddress);
|
||||
|
||||
this.parentDisk = parentDisk;
|
||||
dosVersion = buffer[3];
|
||||
volume = buffer[6] & 0xFF;
|
||||
maxTSPairs = buffer[39];
|
||||
lastAllocTrack = buffer[48];
|
||||
direction = buffer[49];
|
||||
maxTracks = buffer[52] & 0xFF;
|
||||
maxSectors = buffer[53] & 0xFF;
|
||||
sectorSize = HexFormatter.intValue (buffer[54], buffer[55]);
|
||||
flagSectors2 ();
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
@Override
|
||||
public String createText ()
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
return dosVersion <= 3 ? createDosText () : createDos4Text ();
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
private String createDos4Text ()
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
StringBuilder text = getHeader ("DOS 4 VTOC Sector");
|
||||
addText (text, buffer, 0, 1, "Not used");
|
||||
addText (text, buffer, 1, 2, "First directory track/sector");
|
||||
addText (text, buffer, 3, 1, "DOS release number");
|
||||
addText (text, buffer, 4, 1, "Build number");
|
||||
addText (text, buffer, 5, 1, "Ram DOS " + (char) (buffer[5] & 0x7F));
|
||||
|
||||
addTextAndDecimal (text, buffer, 6, 1, "Diskette volume");
|
||||
String diskType =
|
||||
buffer[7] == (byte) 0xC4 ? " = Data" : buffer[7] == (byte) 0xC2 ? " = Boot" : "";
|
||||
addText (text, buffer, 7, 1, "Volume type: " + (char) (buffer[7] & 0x7F) + diskType);
|
||||
|
||||
int ptr = 8;
|
||||
addText (text, buffer, ptr, 4, "Volume name: " + getName (buffer, ptr));
|
||||
for (int j = 4; j < 24; j += 4)
|
||||
addText (text, buffer, ptr + j, 4, "");
|
||||
|
||||
addText (text, buffer, 0x20, 3,
|
||||
"Date/time initialised: " + Utility.getDateTime (buffer, 0x20));
|
||||
addText (text, buffer, 0x23, 3, "");
|
||||
addText (text, buffer, 0x26, 1, "VTOC Phase");
|
||||
|
||||
addTextAndDecimal (text, buffer, 0x27, 1, "Maximum TS pairs");
|
||||
addText (text, buffer, 0x28, 2, "Volume library");
|
||||
addText (text, buffer, 0x2A, 3,
|
||||
"Date/time modified: " + Utility.getDateTime (buffer, 0x2A));
|
||||
addText (text, buffer, 0x2D, 3, "");
|
||||
|
||||
addTextAndDecimal (text, buffer, 0x30, 1, "Last allocated track");
|
||||
addText (text, buffer, 0x31, 1, "Direction to look when allocating the next file");
|
||||
addText (text, buffer, 0x32, 2, "Not used");
|
||||
addTextAndDecimal (text, buffer, 0x34, 1, "Maximum tracks");
|
||||
addTextAndDecimal (text, buffer, 0x35, 1, "Maximum sectors");
|
||||
addTextAndDecimal (text, buffer, 0x36, 2, "Bytes per sector");
|
||||
|
||||
boolean bootSectorEmpty = parentDisk.getDisk ().isSectorEmpty (0);
|
||||
int firstSector = 0x38;
|
||||
int max = maxTracks * 4 + firstSector;
|
||||
for (int i = firstSector; i < max; i += 4)
|
||||
{
|
||||
String extra = "";
|
||||
if (i == firstSector && bootSectorEmpty)
|
||||
extra = "(unusable)";
|
||||
else if (i == 124)
|
||||
extra = "(VTOC and Catalog)";
|
||||
addText (text, buffer, i, 4, String.format ("Track %02X %s %s",
|
||||
(i - firstSector) / 4, getBitmap (buffer, i), extra));
|
||||
}
|
||||
|
||||
text.deleteCharAt (text.length () - 1);
|
||||
|
||||
return text.toString ();
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
private String createDosText ()
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
StringBuilder text = getHeader ("VTOC Sector");
|
||||
addText (text, buffer, 0, 1, "Not used");
|
||||
addText (text, buffer, 1, 2, "First directory track/sector");
|
||||
addText (text, buffer, 3, 1, "DOS release number");
|
||||
addText (text, buffer, 4, 2, "Not used");
|
||||
addTextAndDecimal (text, buffer, 6, 1, "Diskette volume");
|
||||
addText (text, buffer, 7, 4, "Not used");
|
||||
addText (text, buffer, 11, 4, "Not used");
|
||||
addText (text, buffer, 15, 4, "Not used");
|
||||
addText (text, buffer, 19, 4, "Not used");
|
||||
addText (text, buffer, 23, 4, "Not used");
|
||||
addText (text, buffer, 27, 4, "Not used");
|
||||
addText (text, buffer, 31, 4, "Not used");
|
||||
addText (text, buffer, 35, 4, "Not used");
|
||||
addTextAndDecimal (text, buffer, 39, 1, "Maximum TS pairs");
|
||||
addText (text, buffer, 40, 4, "Not used");
|
||||
addText (text, buffer, 44, 4, "Not used");
|
||||
addTextAndDecimal (text, buffer, 48, 1, "Last allocated track");
|
||||
addText (text, buffer, 49, 1, "Direction to look when allocating the next file");
|
||||
addText (text, buffer, 50, 2, "Not used");
|
||||
addTextAndDecimal (text, buffer, 52, 1, "Maximum tracks");
|
||||
addTextAndDecimal (text, buffer, 53, 1, "Maximum sectors");
|
||||
addTextAndDecimal (text, buffer, 54, 2, "Bytes per sector");
|
||||
|
||||
boolean bootSectorEmpty = parentDisk.getDisk ().isSectorEmpty (0);
|
||||
int firstSector = 0x38;
|
||||
int max = maxTracks * 4 + firstSector;
|
||||
for (int i = firstSector; i < max; i += 4)
|
||||
{
|
||||
String extra = "";
|
||||
if (i == firstSector && bootSectorEmpty)
|
||||
extra = "(unusable)";
|
||||
String bits = getBitmap (buffer, i);
|
||||
int track = (i - firstSector) / 4;
|
||||
addText (text, buffer, i, 4,
|
||||
String.format ("Track %02X %s %s", track, bits, extra));
|
||||
}
|
||||
|
||||
text.deleteCharAt (text.length () - 1);
|
||||
|
||||
return text.toString ();
|
||||
}
|
||||
|
||||
// private String getBitmap (byte left, byte right)
|
||||
// {
|
||||
// StringBuilder text = new StringBuilder ();
|
||||
//
|
||||
// int base = maxSectors == 13 ? 3 : 0;
|
||||
// right >>= base;
|
||||
//
|
||||
// for (int i = base; i < 8; i++)
|
||||
// {
|
||||
// if ((right & 0x01) == 1)
|
||||
// text.append (".");
|
||||
// else
|
||||
// text.append ("X");
|
||||
// right >>= 1;
|
||||
// }
|
||||
//
|
||||
// for (int i = 0; i < 8; i++)
|
||||
// {
|
||||
// if ((left & 0x01) == 1)
|
||||
// text.append (".");
|
||||
// else
|
||||
// text.append ("X");
|
||||
// left >>= 1;
|
||||
// }
|
||||
//
|
||||
// return text.toString ();
|
||||
// }
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
private String getBitmap (byte[] buffer, int offset)
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
StringBuilder text = new StringBuilder ();
|
||||
int value = HexFormatter.getLongBigEndian (buffer, offset);
|
||||
|
||||
String bits = "0000000000000000000000000000000" + Integer.toBinaryString (value);
|
||||
bits = bits.substring (bits.length () - 32);
|
||||
bits = bits.substring (0, maxSectors);
|
||||
bits = bits.replace ('0', 'X');
|
||||
bits = bits.replace ('1', '.');
|
||||
text.append (bits);
|
||||
|
||||
return text.reverse ().toString ();
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
private void flagSectors2 ()
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
int firstSector = 0x38;
|
||||
int max = maxTracks * 4 + firstSector;
|
||||
for (int i = firstSector; i < max; i += 4)
|
||||
{
|
||||
int track = (i - firstSector) / 4;
|
||||
String bits = getBitmap (buffer, i);
|
||||
|
||||
// System.out.printf ("%08X %s%n", track, bits);
|
||||
int blockNo = track * maxSectors;
|
||||
char[] chars = bits.toCharArray ();
|
||||
for (int sector = 0; sector < maxSectors; sector++)
|
||||
{
|
||||
// System.out.printf ("%3d %s%n", blockNo, chars[sector]);
|
||||
if (chars[sector] == '.')
|
||||
{
|
||||
parentDisk.setSectorFree (blockNo, true);
|
||||
++freeSectors;
|
||||
}
|
||||
else
|
||||
{
|
||||
parentDisk.setSectorFree (blockNo, false);
|
||||
++usedSectors;
|
||||
}
|
||||
++blockNo;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// private void flagSectors ()
|
||||
// {
|
||||
// int block = 0;
|
||||
// int base = maxSectors == 13 ? 3 : 0;
|
||||
// int firstSector = 0x38;
|
||||
// int max = maxTracks * 4 + firstSector;
|
||||
// for (int i = firstSector; i < max; i += 4)
|
||||
// {
|
||||
// block = check (buffer[i + 1], block, base);
|
||||
// block = check (buffer[i], block, 0);
|
||||
// }
|
||||
// }
|
||||
|
||||
// private int check (byte b, int block, int base)
|
||||
// {
|
||||
// b >>= base;
|
||||
// for (int i = base; i < 8; i++)
|
||||
// {
|
||||
// if ((b & 0x01) == 1)
|
||||
// {
|
||||
// parentDisk.setSectorFree (block, true);
|
||||
// ++freeSectors;
|
||||
// }
|
||||
// else
|
||||
// {
|
||||
// parentDisk.setSectorFree (block, false);
|
||||
// ++usedSectors;
|
||||
// }
|
||||
// block++;
|
||||
// b >>= 1;
|
||||
// }
|
||||
// return block;
|
||||
// }
|
||||
|
||||
// duplicate of DosCatalogSector.getName()
|
||||
// ---------------------------------------------------------------------------------//
|
||||
private String getName (byte[] buffer, int offset)
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
StringBuilder text = new StringBuilder ();
|
||||
int max = 24;
|
||||
for (int i = 0; i < max; i++)
|
||||
{
|
||||
int c = buffer[i + offset] & 0xFF;
|
||||
if (c == 136)
|
||||
{
|
||||
if (text.length () > 0)
|
||||
text.deleteCharAt (text.length () - 1);
|
||||
continue;
|
||||
}
|
||||
if (c > 127)
|
||||
c -= c < 160 ? 64 : 128;
|
||||
if (c < 32) // non-printable
|
||||
text.append ("^" + (char) (c + 64));
|
||||
else
|
||||
text.append ((char) c); // standard ascii
|
||||
}
|
||||
return text.toString ();
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
@Override
|
||||
public String toString ()
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
StringBuffer text = new StringBuffer ();
|
||||
text.append ("DOS version : 3." + dosVersion);
|
||||
text.append ("\nVolume : " + volume);
|
||||
text.append ("\nMax TS pairs : " + maxTSPairs);
|
||||
text.append ("\nLast allocated T : " + lastAllocTrack);
|
||||
text.append ("\nDirection : " + direction);
|
||||
|
||||
return text.toString ();
|
||||
}
|
||||
}
|
||||
Loading…
x
Reference in New Issue
Block a user