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dmolony-DiskBrowser
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This commit is contained in:
Denis Molony 2020-02-08 18:28:22 +10:00
parent 04557bab39
commit add2b8f946
7 changed files with 1141 additions and 1026 deletions
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33
src/com/bytezone/diskbrowser/dos/AbstractCatalogEntry.java
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@ -28,7 +28,9 @@ import com.bytezone.diskbrowser.gui.DataSource;
import com.bytezone.diskbrowser.utilities.HexFormatter;
import com.bytezone.diskbrowser.utilities.Utility;
// -----------------------------------------------------------------------------------//
abstract class AbstractCatalogEntry implements AppleFileSource
// -----------------------------------------------------------------------------------//
{
protected Disk disk;
protected DosDisk dosDisk;
@ -47,8 +49,9 @@ abstract class AbstractCatalogEntry implements AppleFileSource
private CatalogEntry link;
public AbstractCatalogEntry (DosDisk dosDisk, DiskAddress catalogSector,
byte[] entryBuffer)
// ---------------------------------------------------------------------------------//
AbstractCatalogEntry (DosDisk dosDisk, DiskAddress catalogSector, byte[] entryBuffer)
// ---------------------------------------------------------------------------------//
{
this.dosDisk = dosDisk;
this.disk = dosDisk.getDisk ();
@ -88,7 +91,9 @@ abstract class AbstractCatalogEntry implements AppleFileSource
catalogName = getName (base, entryBuffer).replace ("^", "");
}
// ---------------------------------------------------------------------------------//
private String getName (String base, byte[] buffer)
// ---------------------------------------------------------------------------------//
{
StringBuilder text = new StringBuilder (base);
int max = buffer[0] == (byte) 0xFF ? 32 : 33;
@ -115,7 +120,9 @@ abstract class AbstractCatalogEntry implements AppleFileSource
return text.toString ();
}
// ---------------------------------------------------------------------------------//
protected String getFileType ()
// ---------------------------------------------------------------------------------//
{
switch (fileType)
{
@ -143,15 +150,19 @@ abstract class AbstractCatalogEntry implements AppleFileSource
// maybe this should be in the FormattedDisk
// maybe DiskAddress should have a 'valid' flag
// ---------------------------------------------------------------------------------//
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 DataSource getDataSource ()
// ---------------------------------------------------------------------------------//
{
if (appleFile != null)
return appleFile;
@ -297,7 +308,9 @@ abstract class AbstractCatalogEntry implements AppleFileSource
return appleFile;
}
// ---------------------------------------------------------------------------------//
private byte[] getExactBuffer (byte[] buffer)
// ---------------------------------------------------------------------------------//
{
byte[] exactBuffer;
@ -319,14 +332,18 @@ abstract class AbstractCatalogEntry implements AppleFileSource
return exactBuffer;
}
// ---------------------------------------------------------------------------------//
private boolean isRunCommand (byte[] buffer)
// ---------------------------------------------------------------------------------//
{
// see Stargate - Disk 1, Side A.woz
return buffer[0] == 0x4C && buffer[1] == (byte) 0xFC && buffer[2] == (byte) 0xA4
&& buffer[3] == 0x00;
}
// ---------------------------------------------------------------------------------//
private boolean isScrunched (int reportedLength)
// ---------------------------------------------------------------------------------//
{
if ((name.equals ("FLY LOGO") || name.equals ("FLY LOGO SCRUNCHED"))
&& reportedLength == 0x14FA)
@ -338,8 +355,10 @@ abstract class AbstractCatalogEntry implements AppleFileSource
return false;
}
// ---------------------------------------------------------------------------------//
@Override
public boolean contains (DiskAddress da)
// ---------------------------------------------------------------------------------//
{
for (DiskAddress sector : tsSectors)
if (sector.matches (da))
@ -354,21 +373,27 @@ abstract class AbstractCatalogEntry implements AppleFileSource
return false;
}
// ---------------------------------------------------------------------------------//
@Override
public String getUniqueName ()
// ---------------------------------------------------------------------------------//
{
// this might not be unique if the file has been deleted
return name;
}
// ---------------------------------------------------------------------------------//
@Override
public FormattedDisk getFormattedDisk ()
// ---------------------------------------------------------------------------------//
{
return dosDisk;
}
// ---------------------------------------------------------------------------------//
@Override
public List<DiskAddress> getSectors ()
// ---------------------------------------------------------------------------------//
{
List<DiskAddress> sectors = new ArrayList<> ();
sectors.add (catalogSectorDA);
@ -377,13 +402,17 @@ abstract class AbstractCatalogEntry implements AppleFileSource
return sectors;
}
// ---------------------------------------------------------------------------------//
void link (CatalogEntry catalogEntry)
// ---------------------------------------------------------------------------------//
{
this.link = catalogEntry;
}
// ---------------------------------------------------------------------------------//
@Override
public String toString ()
// ---------------------------------------------------------------------------------//
{
return catalogName;
}

10
src/com/bytezone/diskbrowser/dos/CatalogEntry.java
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@ -5,13 +5,17 @@ import com.bytezone.diskbrowser.disk.DiskAddress;
import com.bytezone.diskbrowser.dos.DosDisk.FileType;
import com.bytezone.diskbrowser.utilities.HexFormatter;
// -----------------------------------------------------------------------------------//
class CatalogEntry extends AbstractCatalogEntry
// -----------------------------------------------------------------------------------//
{
private int textFileGaps;
private int length;
private int address;
public CatalogEntry (DosDisk dosDisk, DiskAddress catalogSector, byte[] entryBuffer)
// ---------------------------------------------------------------------------------//
CatalogEntry (DosDisk dosDisk, DiskAddress catalogSector, byte[] entryBuffer)
// ---------------------------------------------------------------------------------//
{
super (dosDisk, catalogSector, entryBuffer); // build lists of ts and data sectors
@ -127,7 +131,9 @@ class CatalogEntry extends AbstractCatalogEntry
}
}
public String getDetails ()
// ---------------------------------------------------------------------------------//
String getDetails ()
// ---------------------------------------------------------------------------------//
{
int actualSize = dataSectors.size () + tsSectors.size () - textFileGaps;
String addressText = address == 0 ? "" : String.format ("$%4X", address);

16
src/com/bytezone/diskbrowser/dos/DeletedCatalogEntry.java
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@ -5,13 +5,17 @@ import com.bytezone.diskbrowser.disk.AppleDiskAddress;
import com.bytezone.diskbrowser.disk.DiskAddress;
import com.bytezone.diskbrowser.gui.DataSource;
// -----------------------------------------------------------------------------------//
class DeletedCatalogEntry extends AbstractCatalogEntry
// -----------------------------------------------------------------------------------//
{
boolean allSectorsAvailable = true;
boolean debug = false;
public DeletedCatalogEntry (DosDisk dosDisk, DiskAddress catalogSector,
byte[] entryBuffer, int dosVersion)
// ---------------------------------------------------------------------------------//
DeletedCatalogEntry (DosDisk dosDisk, DiskAddress catalogSector, byte[] entryBuffer,
int dosVersion)
// ---------------------------------------------------------------------------------//
{
super (dosDisk, catalogSector, entryBuffer);
@ -93,15 +97,19 @@ class DeletedCatalogEntry extends AbstractCatalogEntry
allSectorsAvailable = false;
}
// ---------------------------------------------------------------------------------//
@Override
public String getUniqueName ()
// ---------------------------------------------------------------------------------//
{
// name might not be unique if the file has been deleted
return "!" + name;
}
// ---------------------------------------------------------------------------------//
@Override
public DataSource getDataSource ()
// ---------------------------------------------------------------------------------//
{
if (!allSectorsAvailable && appleFile == null)
{
@ -112,7 +120,9 @@ class DeletedCatalogEntry extends AbstractCatalogEntry
return super.getDataSource ();
}
public String getDetails ()
// ---------------------------------------------------------------------------------//
String getDetails ()
// ---------------------------------------------------------------------------------//
{
return String.format ("%-30s %s", name,
allSectorsAvailable ? "Recoverable" : "Not recoverable");

319
src/com/bytezone/diskbrowser/dos/DosCatalogSector.java
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@ -1,154 +1,167 @@
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 DosCatalogSector extends AbstractSector
{
private static final String[] fileTypes =
{ "Text file", "Integer Basic program", "Applesoft Basic program", "Binary file",
"SS file", "Relocatable file", "AA file", "Lisa file" };
private static int CATALOG_ENTRY_SIZE = 35;
private final DosDisk dosDisk;
public DosCatalogSector (DosDisk dosDisk, Disk disk, byte[] buffer,
DiskAddress diskAddress)
{
super (disk, buffer, diskAddress);
this.dosDisk = dosDisk;
}
@Override
public String createText ()
{
StringBuilder text =
getHeader ("DOS " + dosDisk.getVersionText () + " Catalog Sector");
addText (text, buffer, 0, 1, "Not used");
addText (text, buffer, 1, 2, "Next catalog track/sector");
addText (text, buffer, 3, 4, "Not used");
addText (text, buffer, 7, 4, "Not used");
boolean dos4 = dosDisk.getVersion () > 3;
for (int i = 11; i <= 255; i += CATALOG_ENTRY_SIZE)
{
text.append ("\n");
if (dos4)
createDos4Text (text, i);
else
createDos3Text (text, i);
}
text.deleteCharAt (text.length () - 1);
return text.toString ();
}
private void createDos4Text (StringBuilder text, int i)
{
int track = buffer[i] & 0x3F;
int sector = buffer[i + 1] & 0x1F;
int fileType = buffer[i + 2] & 0x7F;
boolean deleteFlag = (buffer[i] & 0x80) != 0;
boolean zeroTrackFlag = (buffer[i] & 0x40) != 0;
boolean lockedFlag = (buffer[i + 2] & 0x80) != 0;
if (buffer[i] == 0 && !zeroTrackFlag)
{
addText (text, buffer, i + 0, 2, "");
addText (text, buffer, i + 2, 1, "");
addText (text, buffer, i + 3, 4, "");
addText (text, buffer, i + 33, 2, "");
}
else
{
addText (text, buffer, i, 1,
String.format ("TS list track (%s, %s)", deleteFlag ? "deleted" : "not deleted",
zeroTrackFlag ? "track zero" : "not track zero"));
addText (text, buffer, i + 1, 1, "TS list sector");
addText (text, buffer, i + 2, 1,
String.format ("File type (%s)", lockedFlag ? "locked" : "unlocked"));
addText (text, buffer, i + 3, 4, getName (buffer, i + 3, 24));
for (int j = 0; j < 20; j += 4)
addText (text, buffer, i + 7 + j, 4, "");
addText (text, buffer, i + 27, 3,
"Date/time initialised: " + Utility.getDateTime (buffer, i + 27));
addText (text, buffer, i + 30, 3, "");
addTextAndDecimal (text, buffer, i + 33, 2, "File size");
}
}
private void createDos3Text (StringBuilder text, int i)
{
if (buffer[i] == (byte) 0xFF) // file is deleted
{
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)");
}
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 DosCatalogSector extends AbstractSector
// -----------------------------------------------------------------------------------//
{
private static final String[] fileTypes =
{ "Text file", "Integer Basic program", "Applesoft Basic program", "Binary file",
"SS file", "Relocatable file", "AA file", "Lisa file" };
private static int CATALOG_ENTRY_SIZE = 35;
private final DosDisk dosDisk;
// ---------------------------------------------------------------------------------//
DosCatalogSector (DosDisk dosDisk, Disk disk, byte[] buffer, DiskAddress diskAddress)
// ---------------------------------------------------------------------------------//
{
super (disk, buffer, diskAddress);
this.dosDisk = dosDisk;
}
// ---------------------------------------------------------------------------------//
@Override
public String createText ()
// ---------------------------------------------------------------------------------//
{
StringBuilder text =
getHeader ("DOS " + dosDisk.getVersionText () + " Catalog Sector");
addText (text, buffer, 0, 1, "Not used");
addText (text, buffer, 1, 2, "Next catalog track/sector");
addText (text, buffer, 3, 4, "Not used");
addText (text, buffer, 7, 4, "Not used");
boolean dos4 = dosDisk.getVersion () > 3;
for (int i = 11; i <= 255; i += CATALOG_ENTRY_SIZE)
{
text.append ("\n");
if (dos4)
createDos4Text (text, i);
else
createDos3Text (text, i);
}
text.deleteCharAt (text.length () - 1);
return text.toString ();
}
// ---------------------------------------------------------------------------------//
private void createDos4Text (StringBuilder text, int i)
// ---------------------------------------------------------------------------------//
{
int track = buffer[i] & 0x3F;
int sector = buffer[i + 1] & 0x1F;
int fileType = buffer[i + 2] & 0x7F;
boolean deleteFlag = (buffer[i] & 0x80) != 0;
boolean zeroTrackFlag = (buffer[i] & 0x40) != 0;
boolean lockedFlag = (buffer[i + 2] & 0x80) != 0;
if (buffer[i] == 0 && !zeroTrackFlag)
{
addText (text, buffer, i + 0, 2, "");
addText (text, buffer, i + 2, 1, "");
addText (text, buffer, i + 3, 4, "");
addText (text, buffer, i + 33, 2, "");
}
else
{
addText (text, buffer, i, 1,
String.format ("TS list track (%s, %s)", deleteFlag ? "deleted" : "not deleted",
zeroTrackFlag ? "track zero" : "not track zero"));
addText (text, buffer, i + 1, 1, "TS list sector");
addText (text, buffer, i + 2, 1,
String.format ("File type (%s)", lockedFlag ? "locked" : "unlocked"));
addText (text, buffer, i + 3, 4, getName (buffer, i + 3, 24));
for (int j = 0; j < 20; j += 4)
addText (text, buffer, i + 7 + j, 4, "");
addText (text, buffer, i + 27, 3,
"Date/time initialised: " + Utility.getDateTime (buffer, i + 27));
addText (text, buffer, i + 30, 3, "");
addTextAndDecimal (text, buffer, i + 33, 2, "File size");
}
}
// ---------------------------------------------------------------------------------//
private void createDos3Text (StringBuilder text, int i)
// ---------------------------------------------------------------------------------//
{
if (buffer[i] == (byte) 0xFF) // file is deleted
{
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)");
}
}

1022
src/com/bytezone/diskbrowser/dos/DosDisk.java
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172
src/com/bytezone/diskbrowser/dos/DosTSListSector.java
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@ -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 ();
}
}

595
src/com/bytezone/diskbrowser/dos/DosVTOCSector.java
View File

@ -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 ();
}
}