Apple-2-Tools/dmolony-DiskBrowser
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Dos Master exploring

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This commit is contained in:
Denis Molony 2020-07-23 17:39:41 +10:00
parent 8b18988dd3
commit 419ce93f65
3 changed files with 52 additions and 17 deletions
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2
src/com/bytezone/diskbrowser/applefile/ExoBuffer.java
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@ -74,7 +74,7 @@ public class ExoBuffer
if (address != 0x6000 && address != 0x8000 && address != 0xA000)
return false;
return false; // not dealing with fuckwits
return true; // not dealing with fuckwits
}
// ---------------------------------------------------------------------------------//

63
src/com/bytezone/diskbrowser/dosmaster/DosMasterDisk.java
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@ -11,7 +11,6 @@ import java.util.List;
import com.bytezone.diskbrowser.disk.Disk;
import com.bytezone.diskbrowser.disk.DiskAddress;
import com.bytezone.diskbrowser.prodos.ProdosDisk;
import com.bytezone.diskbrowser.utilities.HexFormatter;
import com.bytezone.diskbrowser.utilities.Utility;
// -----------------------------------------------------------------------------------//
@ -24,7 +23,39 @@ public class DosMasterDisk
public static boolean isDos33 (ProdosDisk parentDisk, byte[] buffer)
// ---------------------------------------------------------------------------------//
{
// System.out.println (HexFormatter.format (buffer, 0x38, 0x30));
// System.out.println (HexFormatter.format (buffer, 0x38, 0x30, 0x38));
System.out.printf ("%nTotal Blocks: %04X (%<,d)%n",
parentDisk.getDisk ().getTotalBlocks ());
System.out.print ("\nSlots/Drives: ");
for (int i = 0; i < 8; i++)
{
System.out.printf ("%02X ", buffer[0x38 + i]);
if (i % 2 == 1)
System.out.print (": ");
}
System.out.print ("\nFirst Block : ");
for (int i = 0; i < 16; i += 2)
{
System.out.printf ("%04X ", Utility.unsignedShort (buffer, 0x40 + i));
if (i % 4 == 2)
System.out.print (": ");
}
System.out.print ("\nLast Block : ");
for (int i = 0; i < 8; i += 2)
System.out.printf ("%04X : ", Utility.unsignedShort (buffer, 0x50 + i));
System.out.print ("\nImage Size : ");
for (int i = 0; i < 8; i += 2)
System.out.printf ("%04X : ", Utility.unsignedShort (buffer, 0x58 + i));
System.out.print ("\nAddress : ");
for (int i = 0; i < 8; i += 2)
System.out.printf ("%04X : ", Utility.unsignedShort (buffer, 0x60 + i));
System.out.println ();
System.out.println ();
System.out.println ("# S D B Lo B Hi Size Vols Secs");
@ -45,18 +76,20 @@ public class DosMasterDisk
int lastBlock = Utility.unsignedShort (buffer, 0x50 + skip); // of last volume
int volSize = Utility.unsignedShort (buffer, 0x58 + skip);
int originalFirstBlock = firstBlock;
if (firstBlock > lastBlock) // WTF?
firstBlock -= 16 * 4096;
firstBlock -= 0x10000;
int vols = (lastBlock - firstBlock) / volSize - 1;
int sectors = volSize * 2;
System.out.printf ("%d %02X %d %d %04X %04X %04X %3d %3d%n", i,
buffer[0x38 + i], slot, drive, firstBlock, lastBlock, volSize, vols, sectors);
System.out.printf ("%d %02X %d %d %04X %04X %04X %3d %4d%n", i,
buffer[0x38 + i], slot, drive, originalFirstBlock, lastBlock, volSize, vols,
sectors);
if (vols > 0 && true)
{
int volNo = 10;
int volNo = 1;
int firstDiskBlock = firstBlock + volNo * volSize;
int lastDiskBlock = firstDiskBlock + volSize;
@ -66,15 +99,17 @@ public class DosMasterDisk
daList.add (disk.getDiskAddress (block));
byte[] diskBuffer = disk.readBlocks (daList);
System.out.println (HexFormatter.format (diskBuffer));
System.out.printf ("Buffer: %,d%n", diskBuffer.length);
System.out.printf ("Blocks: %,d x 2 = %,d%n", daList.size (), daList.size () * 2);
// System.out.println (HexFormatter.format (diskBuffer));
// System.out.printf ("Buffer: %,d%n", diskBuffer.length);
// System.out.printf ("Blocks: %,d x 2 = %,d%n", daList.size (), daList.size () * 2);
if (false)
createDisk (String.format ("%sVol%03d.dsk", base, i), diskBuffer);
createDisk (String.format ("%sVol%03d.dsk", base, volNo), diskBuffer);
}
}
// oldCode (parentDisk, buffer);
return false;
}
@ -101,7 +136,7 @@ public class DosMasterDisk
}
// ---------------------------------------------------------------------------------//
private void oldCode (ProdosDisk parentDisk, byte[] buffer)
private static void oldCode (ProdosDisk parentDisk, byte[] buffer)
// ---------------------------------------------------------------------------------//
{
@ -139,8 +174,8 @@ public class DosMasterDisk
int ptr = v0 + 2 * d0 + 2 * dr;
int st = Utility.unsignedShort (buffer, ptr); // start block of first volume
int sz = Utility.unsignedShort (buffer, vsiz + d0); // blocks per volume
int v = Utility.unsignedShort (buffer, size + d0); // end block of last volume
int sz = Utility.unsignedShort (buffer, vsiz + d0); // blocks per volume
if (st > v)
st -= 16 * 4096;
@ -156,8 +191,8 @@ public class DosMasterDisk
if (num > 0 && false)
{
// for (int i = 1; i <= num; i++)
int i = 15;
for (int i = 1; i <= num; i++)
// int i = 15;
{
int firstBlock = st + i * sz;
int lastBlock = firstBlock + sz;

4
src/com/bytezone/diskbrowser/prodos/FileEntry.java
View File

@ -357,8 +357,8 @@ class FileEntry extends CatalogEntry implements ProdosConstants
}
// else if (name.endsWith (".PIC")) // 0091 X-BASIC../../XBASIC.PIC
// file = new SHRPictureFile2 (name, exactBuffer, fileType, auxType, endOfFile);
else if (name.equals ("DOS.3.3") && endOfFile == 0x2800
&& DosMasterDisk.isDos33 (parentDisk, exactBuffer))
else if ((name.equals ("DOS.3.3") || name.equals ("DDOS.3.3"))
&& endOfFile == 0x2800 && DosMasterDisk.isDos33 (parentDisk, exactBuffer))
{
}