Apple-2-Tools/dmolony-DiskBrowser
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Woz2 changes

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This commit is contained in:
Denis Molony 2019-03-22 10:01:08 +11:00
parent 220a2f1cf9
commit 01b481339e
4 changed files with 125 additions and 50 deletions
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1
src/com/bytezone/diskbrowser/cpm/DirectoryEntry.java
View File

@ -113,7 +113,6 @@ public class DirectoryEntry implements AppleFileSource
public String line ()
{
// int blocks = ((rc & 0xF0) >> 3) + (((rc & 0x0F) + 7) / 8);
String bytes = HexFormatter.getHexString (blockList, 0, 16);
bytes = bytes.replaceAll ("00", " ");

4
src/com/bytezone/diskbrowser/disk/DiskFactory.java
View File

@ -254,8 +254,8 @@ public class DiskFactory
}
catch (Exception e)
{
// System.out.println (e);
e.printStackTrace ();
System.out.println (e);
// e.printStackTrace ();
return null;
}
}

10
src/com/bytezone/diskbrowser/nib/MC3470.java
View File

@ -98,8 +98,11 @@ class MC3470
{
++zeroBits;
if (zeroBits > 2)
System.out.printf (zeroBits + " consecutive zeroes @ %d/%d %s%n",
diskSectors.size (), dataPtr, currentState);
{
if (debug)
System.out.printf (zeroBits + " consecutive zeroes @ %d/%d %s%n",
diskSectors.size (), dataPtr, currentState);
}
}
if ((value & 0x80) != 0) // value is not valid until the hi-bit is set
@ -132,7 +135,8 @@ class MC3470
{
inPtr = offset;
restarted = true;
System.out.println ("wrapping around");
if (debug)
System.out.println ("wrapping around");
}
}

160
src/com/bytezone/diskbrowser/nib/WozFile.java
View File

@ -24,6 +24,8 @@ public class WozFile
private final boolean debug = false;
private int diskType; // 5.25 or 3.5
private int wozVersion;
private int bootSectorFormat;
public final File file;
byte[] diskBuffer;
@ -41,7 +43,15 @@ public class WozFile
byte[] buffer = readFile ();
boolean valid = false;
if (!matches (WOZ1_FILE_HEADER, buffer))
if (matches (WOZ1_FILE_HEADER, buffer))
{
wozVersion = 1;
}
else if (matches (WOZ2_FILE_HEADER, buffer))
{
wozVersion = 2;
}
else
{
System.out.println (HexFormatter.format (buffer, 0, 20));
throw new DiskNibbleException ("Header error");
@ -64,19 +74,45 @@ public class WozFile
int chunkSize = readInt (buffer, ptr, 4);
ptr += 4;
if (debug)
{
System.out.printf ("Offset : %06X%n", ptr - 8);
System.out.printf ("Chunk ID : %s%n", chunkId);
System.out.printf ("Chunk size: %,d%n", chunkSize);
}
if ("INFO".equals (chunkId))
{
if (debug)
{
System.out.println ();
System.out.printf ("Version ........... %02X%n", buffer[ptr]);
System.out.printf ("Disk type ......... %02X%n", buffer[ptr + 1]);
System.out.printf ("Write protected ... %02X%n", buffer[ptr + 2]);
System.out.printf ("Synchronised ...... %02X%n", buffer[ptr + 3]);
System.out.printf ("Cleaned ........... %02X%n", buffer[ptr + 4]);
System.out.printf ("Creator ........... %s%n%n",
new String (buffer, ptr + 5, 32));
System.out.printf ("Creator ........... %s%n",
new String (buffer, ptr + 5, 32).trim ());
if (wozVersion > 1)
{
System.out.printf ("Disk sides ........ %02X%n", buffer[ptr + 37]);
System.out.printf ("Boot format ....... %02X%n", buffer[ptr + 38]);
System.out.printf ("Optimal timing .... %02X%n", buffer[ptr + 39]);
System.out.printf ("Compatible flags .. %04X%n",
readInt (buffer, ptr + 40, 2));
System.out.printf ("Minimum RAM ....... %04X%n",
readInt (buffer, ptr + 42, 2));
System.out.printf ("Largest track ..... %04X%n",
readInt (buffer, ptr + 44, 2));
}
System.out.println ();
}
diskType = buffer[ptr + 1] & 0xFF;
if (wozVersion > 1)
bootSectorFormat = buffer[ptr + 38] & 0xFF;
ptr += INFO_SIZE;
}
else if ("TMAP".equals (chunkId))
@ -98,55 +134,92 @@ public class WozFile
{
if (debug)
{
System.out.println ("***************************************");
System.out.println ("***********************************************");
System.out.printf ("* Disk ......... %s%n", file.getName ());
System.out.println ("***************************************");
System.out.println ("***********************************************");
}
int tracks = chunkSize / TRK_SIZE;
for (int trackNo = 0; trackNo < tracks; trackNo++)
if (wozVersion == 1)
{
int bytesUsed = readInt (buffer, ptr + DATA_SIZE, 2);
int bitCount = readInt (buffer, ptr + DATA_SIZE + 2, 2);
int tracks = chunkSize / TRK_SIZE;
if (debug)
for (int trackNo = 0; trackNo < tracks; trackNo++)
{
System.out.println ("******************************");
System.out.printf ("* Track ......... %,6d *%n", trackNo);
System.out.printf ("* Bytes used .... %,6d *%n", bytesUsed);
System.out.printf ("* Bit count .... %,6d *%n", bitCount);
System.out.println ("******************************");
}
int bytesUsed = readInt (buffer, ptr + DATA_SIZE, 2);
int bitCount = readInt (buffer, ptr + DATA_SIZE + 2, 2);
try
{
// nibbleTracks.add (mc3470.getNibbleTrack (buffer, ptr, bytesUsed, bitCount));
List<RawDiskSector> diskSectors =
mc3470.readTrack (buffer, ptr, bytesUsed, bitCount);
if (trackNo == 0) // create disk buffer
if (debug)
{
if (mc3470.is13Sector ())
diskBuffer = new byte[35 * 13 * 256];
else if (mc3470.is16Sector ())
diskBuffer = new byte[35 * 16 * 256];
else
{
System.out.println ("unknown disk format");
break read;
}
System.out.println ("***************************************");
System.out.printf ("* Track ......... %,6d of %,6d *%n", trackNo,
tracks);
System.out.printf ("* Bytes used .... %,6d *%n", bytesUsed);
System.out.printf ("* Bit count .... %,6d *%n", bitCount);
System.out.println ("***************************************");
}
mc3470.storeSectors (diskSectors, diskBuffer);
}
catch (Exception e)
{
// e.printStackTrace ();
System.out.println (e);
break read;
}
try
{
// nibbleTracks.add (mc3470.getNibbleTrack (buffer, ptr, bytesUsed, bitCount));
List<RawDiskSector> diskSectors =
mc3470.readTrack (buffer, ptr, bytesUsed, bitCount);
ptr += TRK_SIZE;
if (trackNo == 0) // create disk buffer
{
if (mc3470.is13Sector ())
diskBuffer = new byte[35 * 13 * 256];
else if (mc3470.is16Sector ())
diskBuffer = new byte[35 * 16 * 256];
else
{
System.out.println ("unknown disk format");
break read;
}
}
mc3470.storeSectors (diskSectors, diskBuffer);
}
catch (Exception e)
{
System.out.println (e);
break read;
}
ptr += TRK_SIZE;
}
}
else
{
diskBuffer = new byte[(bootSectorFormat == 2 ? 13 : 16) * 35 * 256];
for (int trackNo = 0; trackNo < 160; trackNo++)
{
int p = 256 + trackNo * 8;
int startingBlock = readInt (buffer, p, 2);
int blockCount = readInt (buffer, p + 2, 2);
int bitCount = readInt (buffer, p + 4, 4);
if (startingBlock == 0)
break;
if (debug)
System.out.printf ("%3d %3d %6d%n", startingBlock, blockCount, bitCount);
try
{
// nibbleTracks.add (mc3470.getNibbleTrack (buffer, ptr, bytesUsed, bitCount));
List<RawDiskSector> diskSectors = mc3470.readTrack (buffer,
startingBlock * 512, blockCount * 512, bitCount);
mc3470.storeSectors (diskSectors, diskBuffer);
}
catch (Exception e)
{
System.out.println (e);
break read;
}
}
ptr += chunkSize;
}
}
else if ("META".equals (chunkId))
@ -162,8 +235,8 @@ public class WozFile
}
}
if (!valid)
readNibbleTracks (buffer);
// if (!valid)
// readNibbleTracks (buffer);
}
// ---------------------------------------------------------------------------------//
@ -182,7 +255,6 @@ public class WozFile
NibbleTrack nibbleTrack = mc3470.getNibbleTrack (buffer, ptr, bytesUsed, bitCount);
nibbleTracks.add (nibbleTrack);
}
// System.out.println (HexFormatter.format (nibbleTracks.get (2).buffer));
}
// ---------------------------------------------------------------------------------//