135 lines
4.4 KiB
Java
135 lines
4.4 KiB
Java
package com.bytezone.diskbrowser.dos;
|
|
|
|
import com.bytezone.diskbrowser.HexFormatter;
|
|
import com.bytezone.diskbrowser.disk.DiskAddress;
|
|
import com.bytezone.diskbrowser.dos.DosDisk.FileType;
|
|
|
|
class CatalogEntry extends AbstractCatalogEntry
|
|
{
|
|
int textFileGaps;
|
|
int length;
|
|
int address;
|
|
|
|
public CatalogEntry (DosDisk dosDisk, DiskAddress catalogSector, byte[] entryBuffer)
|
|
{
|
|
super (dosDisk, catalogSector, entryBuffer); // build lists of ts and data sectors
|
|
if (reportedSize > 0 && disk.isValidAddress (entryBuffer[0], entryBuffer[1]))
|
|
{
|
|
// Get address of first TS-list sector
|
|
DiskAddress da = disk.getDiskAddress (entryBuffer[0], entryBuffer[1]);
|
|
|
|
// Loop through all TS-list sectors
|
|
loop: while (da.getBlock () > 0)
|
|
{
|
|
if (dosDisk.stillAvailable (da))
|
|
dosDisk.sectorTypes[da.getBlock ()] = dosDisk.tsListSector;
|
|
else
|
|
{
|
|
System.out.print ("Attempt to assign TS sector to occupied sector : " + da);
|
|
System.out.println (" from " + name);
|
|
}
|
|
tsSectors.add (da);
|
|
byte[] sectorBuffer = disk.readSector (da);
|
|
|
|
int startPtr = 12;
|
|
// the tsList *should* start at 0xC0, but some disks start in the unused bytes
|
|
if (false)
|
|
for (int i = 7; i < startPtr; i++)
|
|
if (sectorBuffer[i] != 0)
|
|
{
|
|
startPtr = i;
|
|
break;
|
|
}
|
|
|
|
for (int i = startPtr, max = disk.getBlockSize (); i < max; i += 2)
|
|
{
|
|
da = getValidAddress (sectorBuffer, i);
|
|
if (da == null)
|
|
{
|
|
System.out.print ("T/S list in sector " + i);
|
|
System.out.printf (" contains an invalid address : %02X, %02X (file %s)%n",
|
|
sectorBuffer[i], sectorBuffer[i + 1], name.trim ());
|
|
break loop;
|
|
}
|
|
if (da.getBlock () == 0)
|
|
{
|
|
if (fileType != FileType.Text)
|
|
break;
|
|
++textFileGaps;
|
|
dataSectors.add (null);
|
|
}
|
|
else
|
|
{
|
|
dataSectors.add (da);
|
|
if (dosDisk.stillAvailable (da))
|
|
dosDisk.sectorTypes[da.getBlock ()] = dosDisk.dataSector;
|
|
else
|
|
{
|
|
System.out.print ("Attempt to assign Data sector to occupied sector : " + da);
|
|
System.out.println (" from " + name);
|
|
}
|
|
}
|
|
}
|
|
|
|
da = getValidAddress (sectorBuffer, 1);
|
|
if (da == null)
|
|
{
|
|
System.out.print ("Next T/S list in sector " + da);
|
|
System.out.printf (" is invalid : %02X, %02X%n", sectorBuffer[1], sectorBuffer[2]);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// remove trailing empty sectors
|
|
if (fileType == FileType.Text)
|
|
{
|
|
while (dataSectors.size () > 0)
|
|
{
|
|
DiskAddress da = dataSectors.get (dataSectors.size () - 1);
|
|
if (da == null)
|
|
{
|
|
dataSectors.remove (dataSectors.size () - 1);
|
|
--textFileGaps;
|
|
}
|
|
else
|
|
break;
|
|
}
|
|
}
|
|
|
|
// get the file length
|
|
if (dataSectors.size () > 0 && fileType != FileType.Text)
|
|
{
|
|
byte[] buffer = disk.readSector (dataSectors.get (0));
|
|
switch (fileType)
|
|
{
|
|
case IntegerBasic:
|
|
// length = HexFormatter.intValue (buffer[0], buffer[1]);
|
|
// break;
|
|
case ApplesoftBasic:
|
|
length = HexFormatter.intValue (buffer[0], buffer[1]);
|
|
break;
|
|
default:
|
|
address = HexFormatter.intValue (buffer[0], buffer[1]);
|
|
length = HexFormatter.intValue (buffer[2], buffer[3]);
|
|
}
|
|
}
|
|
}
|
|
|
|
public String getDetails ()
|
|
{
|
|
int actualSize = dataSectors.size () + tsSectors.size () - textFileGaps;
|
|
String addressText = address == 0 ? "" : String.format ("$%4X", address);
|
|
String lengthText = length == 0 ? "" : String.format ("$%4X %,6d", length, length);
|
|
String message = "";
|
|
String lockedFlag = (locked) ? "*" : " ";
|
|
if (reportedSize != actualSize)
|
|
message += "Bad size (" + reportedSize + ") ";
|
|
if (dataSectors.size () == 0)
|
|
message += "No data ";
|
|
return String.format ("%1s %1s %03d %-30.30s %-5s %-13s %2d %3d %s", lockedFlag,
|
|
getFileType (), actualSize, name, addressText, lengthText,
|
|
tsSectors.size (), (dataSectors.size () - textFileGaps),
|
|
message.trim ());
|
|
}
|
|
} |