mirror of
https://github.com/dmolony/DiskBrowser.git
synced 2024-11-25 16:34:00 +00:00
DOS 4.1 changes
This commit is contained in:
Denis Molony
parent
d9b656cfa0
commit
1b5f3f95a9
@ -18,7 +18,7 @@ public class SimpleText2 extends AbstractFile
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// store a pointer to each new line
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int ptr = 0;
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while (buffer[ptr] != -1)
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while (ptr < buffer.length && buffer[ptr] != -1)
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{
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int length = buffer[ptr] & 0xFF;
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lineStarts.add (ptr);
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@ -37,6 +37,8 @@ public class SimpleText2 extends AbstractFile
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for (Integer i : lineStarts)
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text.append (String.format ("%05X %s%n", i, getLine (i)));
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if (text.charAt (text.length () - 1) == '\n')
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text.deleteCharAt (text.length () - 1);
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return text.toString ();
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}
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@ -46,8 +48,8 @@ public class SimpleText2 extends AbstractFile
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StringBuilder text = new StringBuilder ();
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for (Integer i : lineStarts)
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text.append (HexFormatter.formatNoHeader (buffer, i, (buffer[i] & 0xFF) + 1)
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+ "\n");
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text.append (
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HexFormatter.formatNoHeader (buffer, i, (buffer[i] & 0xFF) + 1) + "\n");
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text.append (HexFormatter.formatNoHeader (buffer, buffer.length - 2, 2) + "\n");
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return text.toString ();
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@ -396,7 +396,8 @@ public class AppleDisk implements Disk
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int ptr = 0;
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for (DiskAddress da : daList)
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{
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if (da != null && da.getBlock () > 0) // sparse text/PNT/PIC files may have gaps
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// sparse text/PNT/PIC files may have gaps
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if (da != null && (da.getBlock () > 0 || ((AppleDiskAddress) da).zeroFlag ()))
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readBuffer (da, buffer, ptr);
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ptr += sectorSize;
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}
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@ -458,6 +459,9 @@ public class AppleDisk implements Disk
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@Override
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public DiskAddress getDiskAddress (int track, int sector)
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{
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// track &= 0x3F;
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// sector &= 0x1F;
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if (!isValidAddress (track, sector))
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{
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System.out.println ("Invalid block : " + track + "/" + sector);
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@ -502,10 +506,14 @@ public class AppleDisk implements Disk
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@Override
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public boolean isValidAddress (int track, int sector)
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{
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track &= 0x3F;
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sector &= 0x1F;
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if (track < 0 || track >= this.tracks)
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return false;
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if (sector < 0 || sector >= this.sectors)
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return false;
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return true;
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}
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@ -6,6 +6,7 @@ public class AppleDiskAddress implements DiskAddress
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private final int track;
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private final int sector;
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public final Disk owner;
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private boolean zeroFlag;
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public AppleDiskAddress (Disk owner, int block)
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{
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@ -19,15 +20,15 @@ public class AppleDiskAddress implements DiskAddress
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public AppleDiskAddress (Disk owner, int track, int sector)
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{
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this.owner = owner;
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this.track = track;
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this.sector = sector;
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this.block = track * owner.getSectorsPerTrack () + sector;
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zeroFlag = (track & 0x40) != 0;
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this.track = track & 0x3F;
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this.sector = sector & 0x1F;
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this.block = this.track * owner.getSectorsPerTrack () + this.sector;
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}
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@Override
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public String toString ()
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public boolean zeroFlag ()
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{
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return String.format ("[Block=%3d, Track=%2d, Sector=%2d]", block, track, sector);
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return zeroFlag;
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}
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@Override
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@ -65,4 +66,11 @@ public class AppleDiskAddress implements DiskAddress
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{
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return owner;
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}
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@Override
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public String toString ()
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{
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return String.format ("[Block=%3d, Track=%2d, Sector=%2d, Zero=%s]", block, track,
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sector, zeroFlag);
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}
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}
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@ -1,5 +1,6 @@
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package com.bytezone.diskbrowser.dos;
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import java.time.LocalDateTime;
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import java.util.ArrayList;
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import java.util.List;
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@ -10,6 +11,7 @@ import com.bytezone.diskbrowser.disk.FormattedDisk;
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import com.bytezone.diskbrowser.dos.DosDisk.FileType;
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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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abstract class AbstractCatalogEntry implements AppleFileSource
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{
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@ -22,6 +24,7 @@ abstract class AbstractCatalogEntry implements AppleFileSource
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protected int reportedSize;
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protected boolean locked;
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protected DataSource appleFile;
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protected LocalDateTime lastModified;
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protected DiskAddress catalogSectorDA;
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protected final List<DiskAddress> dataSectors = new ArrayList<DiskAddress> ();
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@ -34,33 +37,34 @@ abstract class AbstractCatalogEntry implements AppleFileSource
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{
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this.dosDisk = dosDisk;
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this.disk = dosDisk.getDisk ();
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this.disk = dosDisk.getDisk ();
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this.catalogSectorDA = catalogSector;
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reportedSize = HexFormatter.unsignedShort (entryBuffer, 33);
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int type = entryBuffer[2] & 0xFF;
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locked = (type & 0x80) > 0;
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if ((type & 0x7F) == 0)
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int type = entryBuffer[2] & 0x7F;
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locked = (entryBuffer[2] & 0x80) != 0;
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if (type == 0)
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fileType = FileType.Text;
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else if ((type & 0x01) > 0)
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else if ((type == 0x01))
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fileType = FileType.IntegerBasic;
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else if ((type & 0x02) > 0)
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else if ((type == 0x02))
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fileType = FileType.ApplesoftBasic;
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else if ((type & 0x04) > 0)
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else if ((type == 0x04))
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fileType = FileType.Binary;
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else if ((type & 0x08) > 0)
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else if ((type == 0x08))
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fileType = FileType.SS;
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else if ((type & 0x10) > 0)
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else if ((type == 0x10))
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fileType = FileType.Relocatable;
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else if ((type & 0x20) > 0)
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else if ((type == 0x20))
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fileType = FileType.AA;
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else if ((type & 0x40) > 0)
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else if ((type == 0x40))
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fileType = FileType.BB;
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else
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System.out.println ("Unknown file type : " + (type & 0x7F));
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System.out.println ("Unknown file type : " + type);
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name = getName ("", entryBuffer);
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lastModified = Utility.getDateTime (entryBuffer, 0x1B);
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// CATALOG command only formats the LO byte - see Beneath Apple DOS pp4-6
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String base = String.format ("%s%s %03d ", (locked) ? "*" : " ", getFileType (),
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(entryBuffer[33] & 0xFF));
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@ -71,6 +75,8 @@ abstract class AbstractCatalogEntry implements AppleFileSource
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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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if (dosDisk.getVersion () >= 0x41)
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max = 27;
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for (int i = 3; i < max; i++)
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{
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int c = buffer[i] & 0xFF;
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@ -1,5 +1,6 @@
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package com.bytezone.diskbrowser.dos;
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import com.bytezone.diskbrowser.disk.AppleDiskAddress;
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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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@ -20,7 +21,7 @@ class CatalogEntry extends AbstractCatalogEntry
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DiskAddress da = disk.getDiskAddress (entryBuffer[0], entryBuffer[1]);
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// Loop through all TS-list sectors
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loop: while (da.getBlock () > 0)
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loop: while (da.getBlock () > 0 || ((AppleDiskAddress) da).zeroFlag ())
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{
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if (dosDisk.stillAvailable (da))
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dosDisk.sectorTypes[da.getBlock ()] = dosDisk.tsListSector;
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@ -55,7 +56,7 @@ class CatalogEntry extends AbstractCatalogEntry
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sectorBuffer[i], sectorBuffer[i + 1], name.trim ());
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break loop;
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}
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if (da.getBlock () == 0)
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if (da.getBlock () == 0 && !((AppleDiskAddress) da).zeroFlag ())
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{
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if (fileType != FileType.Text)
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break;
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@ -132,6 +133,10 @@ class CatalogEntry extends AbstractCatalogEntry
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String lengthText = length == 0 ? "" : String.format ("$%4X %,6d", length, length);
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String message = "";
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String lockedFlag = (locked) ? "*" : " ";
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if (dosDisk.dosVTOCSector.dosVersion >= 0x41)
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{
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message = lastModified.toString ().replace ('T', ' ');
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}
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if (reportedSize != actualSize)
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message += "Bad size (" + reportedSize + ") ";
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if (dataSectors.size () == 0)
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@ -4,6 +4,7 @@ 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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@ -12,73 +13,119 @@ class DosCatalogSector extends AbstractSector
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"SS file", "Relocatable file", "AA file", "BB file" };
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private static int CATALOG_ENTRY_SIZE = 35;
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public DosCatalogSector (Disk disk, byte[] buffer, DiskAddress diskAddress)
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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 = getHeader ("Catalog Sector");
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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 (true)
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{
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if (buffer[i] == (byte) 0xFF)
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{
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addText (text, buffer, i + 0, 2,
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"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));
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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)
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{
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addText (text, buffer, i + 0, 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));
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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
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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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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 String getName (byte[] buffer, int offset)
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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 = 3; i < max; i++)
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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 + offset] & 0xFF;
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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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@ -87,10 +134,10 @@ class DosCatalogSector extends AbstractSector
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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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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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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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@ -18,7 +18,7 @@ public class DosDisk extends AbstractFormattedDisk
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private static final int CATALOG_TRACK = 17;
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private static final int VTOC_SECTOR = 0;
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private final DosVTOCSector dosVTOCSector;
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final DosVTOCSector dosVTOCSector;
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private final Color green = new Color (0, 200, 0);
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private final DefaultMutableTreeNode volumeNode;
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@ -152,6 +152,12 @@ public class DosDisk extends AbstractFormattedDisk
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int track = sectorBuffer[1] & 0xFF;
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int sector = sectorBuffer[2] & 0xFF;
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if (dosVTOCSector.dosVersion >= 0x41)
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{
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track = track & 0x3F;
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sector = sector & 0x1F;
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}
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if (!disk.isValidAddress (track, sector))
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break;
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@ -254,6 +260,28 @@ public class DosDisk extends AbstractFormattedDisk
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return false;
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}
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public String getVersionText ()
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{
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switch (getVersion ())
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{
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case 0x01:
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return "3.1";
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case 0x02:
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return "3.2";
|
||||
case 0x03:
|
||||
return "3.3";
|
||||
case 0x41:
|
||||
return "4.1";
|
||||
default:
|
||||
return "??";
|
||||
}
|
||||
}
|
||||
|
||||
public int getVersion ()
|
||||
{
|
||||
return dosVTOCSector.dosVersion;
|
||||
}
|
||||
|
||||
private static int checkFormat (AppleDisk disk)
|
||||
{
|
||||
byte[] buffer = disk.readSector (0x11, 0x00);
|
||||
@ -272,10 +300,10 @@ public class DosDisk extends AbstractFormattedDisk
|
||||
// // return 0;
|
||||
// }
|
||||
|
||||
int version = buffer[3];
|
||||
if (version < -1 || version > 4)
|
||||
int version = buffer[3] & 0xFF;
|
||||
if (version > 0x42 && version != 0xFF)
|
||||
{
|
||||
System.out.println ("Bad version : " + buffer[3]);
|
||||
System.out.printf ("Bad version : %02X%n", version);
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -347,7 +375,7 @@ public class DosDisk extends AbstractFormattedDisk
|
||||
if (type == tsListSector)
|
||||
return new DosTSListSector (getSectorFilename (da), disk, buffer, da);
|
||||
if (type == catalogSector)
|
||||
return new DosCatalogSector (disk, buffer, da);
|
||||
return new DosCatalogSector (this, disk, buffer, da);
|
||||
if (type == dataSector)
|
||||
return new DefaultSector (
|
||||
"Data Sector at " + address + " : " + getSectorFilename (da), disk, buffer, da);
|
||||
@ -369,7 +397,7 @@ public class DosDisk extends AbstractFormattedDisk
|
||||
{
|
||||
String newLine = String.format ("%n");
|
||||
String line = "- --- --- ------------------------------ ----- -------------"
|
||||
+ " -- ---- ----------------" + newLine;
|
||||
+ " -- ---- -------------------" + newLine;
|
||||
StringBuilder text = new StringBuilder ();
|
||||
text.append (String.format ("Disk : %s%n%n", getAbsolutePath ()));
|
||||
text.append ("L Typ Len Name Addr"
|
||||
@ -405,33 +433,33 @@ public class DosDisk extends AbstractFormattedDisk
|
||||
}
|
||||
|
||||
/* From http://apple2history.org/history/ah15/
|
||||
*
|
||||
There were actually three versions of DOS 3.3 that Apple released without
|
||||
*
|
||||
There were actually three versions of DOS 3.3 that Apple released without
|
||||
bumping the version number:
|
||||
|
||||
The first version that was released had FPBASIC and INTBASIC files that were 50
|
||||
sectors in size.
|
||||
|
||||
The second version of DOS 3.3, often referred to as “DOS 3.3e”, appeared at the
|
||||
time the Apple IIe was released. In this version, the FPBASIC and INTBASIC files
|
||||
were 42 sectors in size. The changes introduced at that time included code to turn
|
||||
off the IIe 80-column card at boot time, and an attempt to fix a bug in the APPEND
|
||||
command. This fix reportedly introduced an even worse bug, but as the command was
|
||||
not heavily used it did not make much of an impact on most programmers. The APPEND
|
||||
|
||||
The second version of DOS 3.3, often referred to as “DOS 3.3e”, appeared at the
|
||||
time the Apple IIe was released. In this version, the FPBASIC and INTBASIC files
|
||||
were 42 sectors in size. The changes introduced at that time included code to turn
|
||||
off the IIe 80-column card at boot time, and an attempt to fix a bug in the APPEND
|
||||
command. This fix reportedly introduced an even worse bug, but as the command was
|
||||
not heavily used it did not make much of an impact on most programmers. The APPEND
|
||||
fix was applied by utilizing some formerly unused space in the DOS 3.3 code.
|
||||
|
||||
The third version of DOS 3.3 appeared just before the first release of ProDOS.
|
||||
The only mention of this in the press was in the DOSTalk column of Softalk magazine.
|
||||
This final version of DOS 3.3 included a different fix for the APPEND bug, using
|
||||
|
||||
The third version of DOS 3.3 appeared just before the first release of ProDOS.
|
||||
The only mention of this in the press was in the DOSTalk column of Softalk magazine.
|
||||
This final version of DOS 3.3 included a different fix for the APPEND bug, using
|
||||
another bit of unused space in DOS 3.3.
|
||||
|
||||
With regard to the FPBASIC and INTBASIC files: There were three differences between
|
||||
the 50 sector and the 42 sector versions of the INTBASIC file. Firstly, the
|
||||
$F800-$FFFF section was removed. This area was the code for the Monitor, and with
|
||||
the changes introduced in the Apple IIe, it could cause some things to “break” if
|
||||
the older Monitor code was executed. Secondly, a FOR/NEXT bug in Integer BASIC was
|
||||
fixed. Finally, there was a three-byte bug in the Programmer’s Aid ROM #1 chip.
|
||||
The code for this chip was included in the INTBASIC file, and could therefore be
|
||||
With regard to the FPBASIC and INTBASIC files: There were three differences between
|
||||
the 50 sector and the 42 sector versions of the INTBASIC file. Firstly, the
|
||||
$F800-$FFFF section was removed. This area was the code for the Monitor, and with
|
||||
the changes introduced in the Apple IIe, it could cause some things to “break” if
|
||||
the older Monitor code was executed. Secondly, a FOR/NEXT bug in Integer BASIC was
|
||||
fixed. Finally, there was a three-byte bug in the Programmer’s Aid ROM #1 chip.
|
||||
The code for this chip was included in the INTBASIC file, and could therefore be
|
||||
patched.
|
||||
*/
|
||||
}
|
||||
@ -4,12 +4,13 @@ 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;
|
||||
int dosVersion; // 1, 2, 3 or 0x41...
|
||||
int maxTSPairs;
|
||||
int lastAllocTrack;
|
||||
int direction;
|
||||
@ -25,7 +26,7 @@ class DosVTOCSector extends AbstractSector
|
||||
super (disk, buffer, diskAddress);
|
||||
|
||||
this.parentDisk = parentDisk;
|
||||
DOSVersion = buffer[3];
|
||||
dosVersion = buffer[3];
|
||||
volume = buffer[6] & 0xFF;
|
||||
maxTSPairs = buffer[39];
|
||||
lastAllocTrack = buffer[48];
|
||||
@ -38,6 +39,63 @@ class DosVTOCSector extends AbstractSector
|
||||
|
||||
@Override
|
||||
public String createText ()
|
||||
{
|
||||
return dosVersion <= 3 ? createDosText () : createOtherText ();
|
||||
}
|
||||
|
||||
private String createOtherText ()
|
||||
{
|
||||
StringBuilder text = getHeader ("DOS 4.1 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");
|
||||
addText (text, buffer, 7, 1, "Volume type " + (char) (buffer[7] & 0x7F));
|
||||
|
||||
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, "Not used");
|
||||
|
||||
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);
|
||||
for (int i = 0x38; i <= 0xC3; i += 4)
|
||||
{
|
||||
String extra = "";
|
||||
if (i == 0x38 && bootSectorEmpty)
|
||||
extra = "(unusable)";
|
||||
else if (i == 124)
|
||||
extra = "(VTOC and Catalog)";
|
||||
addText (text, buffer, i, 4, String.format ("Track %02X %s %s", (i - 56) / 4,
|
||||
getBitmap (buffer[i], buffer[i + 1]), extra));
|
||||
}
|
||||
|
||||
text.deleteCharAt (text.length () - 1);
|
||||
|
||||
return text.toString ();
|
||||
}
|
||||
|
||||
private String createDosText ()
|
||||
{
|
||||
StringBuilder text = getHeader ("VTOC Sector");
|
||||
addText (text, buffer, 0, 1, "Not used");
|
||||
@ -138,11 +196,35 @@ class DosVTOCSector extends AbstractSector
|
||||
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 ("DOS version : 3." + dosVersion);
|
||||
text.append ("\nVolume : " + volume);
|
||||
text.append ("\nMax TS pairs : " + maxTSPairs);
|
||||
text.append ("\nLast allocated T : " + lastAllocTrack);
|
||||
|
||||
@ -7,6 +7,7 @@ import java.util.Collections;
|
||||
import java.util.Iterator;
|
||||
import java.util.List;
|
||||
|
||||
import com.bytezone.diskbrowser.disk.AppleDiskAddress;
|
||||
import com.bytezone.diskbrowser.disk.Disk;
|
||||
import com.bytezone.diskbrowser.disk.DiskAddress;
|
||||
import com.bytezone.diskbrowser.disk.FormattedDisk;
|
||||
@ -152,7 +153,7 @@ class DiskLayoutSelection implements Iterable<DiskAddress>
|
||||
highlights.clear ();
|
||||
if (list != null)
|
||||
for (DiskAddress da : list)
|
||||
if (da != null && da.getBlock () > 0)
|
||||
if (da != null && (da.getBlock () > 0 || ((AppleDiskAddress) da).zeroFlag ()))
|
||||
highlights.add (da);
|
||||
}
|
||||
|
||||
|
||||
@ -2,6 +2,8 @@ package com.bytezone.diskbrowser.utilities;
|
||||
|
||||
import java.awt.Graphics2D;
|
||||
import java.awt.geom.AffineTransform;
|
||||
import java.time.DateTimeException;
|
||||
import java.time.LocalDateTime;
|
||||
import java.util.Arrays;
|
||||
import java.util.List;
|
||||
|
||||
@ -58,6 +60,24 @@ public class Utility
|
||||
return false;
|
||||
}
|
||||
|
||||
public static LocalDateTime getDateTime (byte[] buffer, int ptr)
|
||||
{
|
||||
try
|
||||
{
|
||||
int[] val = new int[6];
|
||||
for (int i = 0; i < 6; i++)
|
||||
val[i] = Integer.parseInt (String.format ("%02X", buffer[ptr + i] & 0xFF));
|
||||
|
||||
LocalDateTime date =
|
||||
LocalDateTime.of (val[3] + 2000, val[5], val[4], val[2], val[1], val[0]);
|
||||
return date;
|
||||
}
|
||||
catch (DateTimeException e)
|
||||
{
|
||||
return null;
|
||||
}
|
||||
}
|
||||
|
||||
public static boolean matches (byte[] buffer, int offset, byte[] key)
|
||||
{
|
||||
int ptr = 0;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user