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Denis Molony 2020-02-07 21:52:46 +10:00
parent 467f5db110
commit e4ed878f69
10 changed files with 1441 additions and 1343 deletions
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186
src/com/bytezone/diskbrowser/applefile/PascalCode.java
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@ -1,88 +1,100 @@
package com.bytezone.diskbrowser.applefile;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import com.bytezone.diskbrowser.utilities.FileFormatException;
import com.bytezone.diskbrowser.utilities.HexFormatter;
public class PascalCode extends AbstractFile
implements PascalConstants, Iterable<PascalSegment>
{
private final List<PascalSegment> segments = new ArrayList<> (16);
private final String comment;
// private final int blockOffset;
// private final Relocator relocator;
public static void print ()
{
for (int i = 0; i < 216; i++)
System.out.printf ("%3d %d %3s %s%n", i + 128, PascalConstants.mnemonicSize[i],
PascalConstants.mnemonics[i], PascalConstants.descriptions[i]);
}
public PascalCode (String name, byte[] buffer, int blockOffset)
{
super (name, buffer);
SegmentDictionary segmentDictionary = new SegmentDictionary (name, buffer);
if (!segmentDictionary.isValid ())
throw new FileFormatException ("Error in PascalSegment");
// this.blockOffset = blockOffset;
// this.relocator = relocator;
// if (relocator != null)
// relocator.getMultiDiskAddress ("SEG-DIC", blockOffset, 1);
int nonameCounter = 0;
// Create segment list (up to 16 segments)
for (int i = 0; i < 16; i++)
{
String codeName = HexFormatter.getString (buffer, 0x40 + i * 8, 8).trim ();
int size = HexFormatter.intValue (buffer[i * 4 + 2], buffer[i * 4 + 3]);
if (codeName.length () == 0 && size > 0)
codeName = "<NULL" + ++nonameCounter + ">";
if (size > 0)
{
// this could throw an exception
PascalSegment pascalSegment =
new PascalSegment (codeName, buffer, i, blockOffset);
segments.add (pascalSegment);
}
}
comment = HexFormatter.getPascalString (buffer, 0x1B0);
}
@Override
public String getText ()
{
StringBuilder text = new StringBuilder (getHeader ());
text.append ("Segment Dictionary\n==================\n\n");
text.append ("Slot Addr Blks Byte Name Kind"
+ " Txt Seg Mch Ver I/S I/S Disk:Block\n");
text.append ("---- ---- ---- ---- -------- ---------------"
+ " --- --- --- --- --- --- ---------------------\n");
for (PascalSegment segment : segments)
text.append (segment.toText () + "\n");
text.append ("\nComment : " + comment);
return text.toString ();
}
private String getHeader ()
{
return "Name : " + name + "\n\n";
}
@Override
public Iterator<PascalSegment> iterator ()
{
return segments.iterator ();
}
package com.bytezone.diskbrowser.applefile;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import com.bytezone.diskbrowser.utilities.FileFormatException;
import com.bytezone.diskbrowser.utilities.HexFormatter;
// ---------------------------------------------------------------------------------//
public class PascalCode extends AbstractFile
implements PascalConstants, Iterable<PascalSegment>
// ---------------------------------------------------------------------------------//
{
private final List<PascalSegment> segments = new ArrayList<> (16);
private final String comment;
// private final int blockOffset;
// private final Relocator relocator;
// ---------------------------------------------------------------------------------//
public static void print ()
// ---------------------------------------------------------------------------------//
{
for (int i = 0; i < 216; i++)
System.out.printf ("%3d %d %3s %s%n", i + 128, PascalConstants.mnemonicSize[i],
PascalConstants.mnemonics[i], PascalConstants.descriptions[i]);
}
// ---------------------------------------------------------------------------------//
public PascalCode (String name, byte[] buffer, int blockOffset)
// ---------------------------------------------------------------------------------//
{
super (name, buffer);
SegmentDictionary segmentDictionary = new SegmentDictionary (name, buffer);
if (!segmentDictionary.isValid ())
throw new FileFormatException ("Error in PascalSegment");
// this.blockOffset = blockOffset;
// this.relocator = relocator;
// if (relocator != null)
// relocator.getMultiDiskAddress ("SEG-DIC", blockOffset, 1);
int nonameCounter = 0;
// Create segment list (up to 16 segments)
for (int i = 0; i < 16; i++)
{
String codeName = HexFormatter.getString (buffer, 0x40 + i * 8, 8).trim ();
int size = HexFormatter.intValue (buffer[i * 4 + 2], buffer[i * 4 + 3]);
if (codeName.length () == 0 && size > 0)
codeName = "<NULL" + ++nonameCounter + ">";
if (size > 0)
{
// this could throw an exception
PascalSegment pascalSegment =
new PascalSegment (codeName, buffer, i, blockOffset);
segments.add (pascalSegment);
}
}
comment = HexFormatter.getPascalString (buffer, 0x1B0);
}
// ---------------------------------------------------------------------------------//
@Override
public String getText ()
// ---------------------------------------------------------------------------------//
{
StringBuilder text = new StringBuilder (getHeader ());
text.append ("Segment Dictionary\n==================\n\n");
text.append ("Slot Addr Blks Byte Name Kind"
+ " Txt Seg Mch Ver I/S I/S Disk:Block\n");
text.append ("---- ---- ---- ---- -------- ---------------"
+ " --- --- --- --- --- --- ---------------------\n");
for (PascalSegment segment : segments)
text.append (segment.toText () + "\n");
text.append ("\nComment : " + comment);
return text.toString ();
}
// ---------------------------------------------------------------------------------//
private String getHeader ()
// ---------------------------------------------------------------------------------//
{
return "Name : " + name + "\n\n";
}
// ---------------------------------------------------------------------------------//
@Override
public Iterator<PascalSegment> iterator ()
// ---------------------------------------------------------------------------------//
{
return segments.iterator ();
}
}

724
src/com/bytezone/diskbrowser/applefile/PascalCodeStatement.java
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@ -1,352 +1,374 @@
package com.bytezone.diskbrowser.applefile;
import java.util.ArrayList;
import java.util.List;
import com.bytezone.diskbrowser.utilities.HexFormatter;
public class PascalCodeStatement implements PascalConstants
{
private static final String[] compValue =
{ "invalid", "", "REAL", "", "STR", "", "BOOL", "", "POWR", "", "BYT", "", "WORD" };
int length;
int val;
int p1, p2, p3;
String mnemonic;
String extras = "";
String description;
String text;
int ptr; // temp
byte[] buffer;
boolean jumpTarget;
List<Jump> jumps = new ArrayList<> ();
public PascalCodeStatement (byte[] buffer, int ptr, int procPtr)
{
this.ptr = ptr;
this.buffer = buffer;
length = 1;
val = buffer[ptr] & 0xFF;
if (val <= 127)
{
mnemonic = "SLDC";
extras = "#" + val;
description = "Short load constant - push #" + val;
}
else if (val >= 248)
{
mnemonic = "SIND";
extras = "#" + (val - 248);
description = "Short index load - push word *ToS + #" + (val - 248);
}
else if (val >= 232)
{
mnemonic = "SLDO";
extras = "#" + (val - 231);
description = "Short load global - push BASE + #" + (val - 231);
}
else if (val >= 216)
{
mnemonic = "SLDL";
extras = "#" + (val - 215);
description = "Short load local - push MP + #" + (val - 215);
}
else
{
mnemonic = mnemonics[val - 128];
description = descriptions[val - 128];
length = mnemonicSize[val - 128];
if (length != 1)
{
switch (val)
{
// W1, W2, W3, <table> - word aligned case jump
case 172: //XJP
int padding = (ptr % 2) == 0 ? 1 : 0;
p1 = getWord (buffer, ptr + padding + 1);
p2 = getWord (buffer, ptr + padding + 3);
p3 = getWord (buffer, ptr + padding + 5);
length = (p2 - p1 + 1) * 2 + 7 + padding;
setParameters (p1, p2, String.format ("%04X", p3));
int v = p1;
int min = ptr + padding + 7;
int max = min + (p2 - p1) * 2;
for (int i = min; i <= max; i += 2)
{
jumps.add (new Jump (i,
i - HexFormatter.intValue (buffer[i], buffer[i + 1]), v++));
}
break;
// UB, <block> - word aligned
case 179: //LDC
p1 = buffer[ptr + 1] & 0xFF;
padding = ptr % 2 == 0 ? 0 : 1;
length = p1 * 2 + padding + 2;
setParameters (p1);
break;
// UB, <chars>
case 166: // LSA
case 208: // LPA
p1 = buffer[ptr + 1] & 0xFF;
length = p1 + 2;
if (val == 166)
{
text = HexFormatter.getPascalString (buffer, ptr + 1);
description += ": " + text;
}
break;
// W
case 199: // LDCI
p1 = getWord (buffer, ptr + 1);
setParameters (p1);
break;
// B
case 162: // INC
case 163: // IND
case 164: // IXA
case 165: // LAO
case 168: // MOV
case 169: // LDO
case 171: // SRO
case 198: // LLA
case 202: // LDL
case 204: // STL
case 213: // BPT
length = getLengthOfB (buffer[ptr + 1]) + 1;
p1 = getValueOfB (buffer, ptr + 1, length - 1);
setParameters (p1);
break;
// DB, B or UB, B
case 157: // LDE
case 167: // LAE
case 178: // LDA
case 182: // LOD
case 184: // STR
case 209: // STE
length = getLengthOfB (buffer[ptr + 2]) + 2;
p1 = buffer[ptr + 1] & 0xFF;
p2 = getValueOfB (buffer, ptr + 2, length - 2);
setParameters (p1, p2);
break;
// UB1, UB2
case 192: // IXP
case 205: // CXP
p1 = buffer[ptr + 1] & 0xFF;
p2 = buffer[ptr + 2] & 0xFF;
setParameters (p1, p2);
break;
// SB or DB
case 161: // FJP
case 173: // RNP
case 185: // UJP
case 193: // RBP
case 211: // EFJ
case 212: // NFJ
p1 = buffer[ptr + 1];
if (val == 173 || val == 193) // return from procedure
setParameters (p1);
else if (p1 < 0)
{
// look up jump table entry
int address = procPtr + p1;
int ptr2 = address
- ((buffer[address + 1] & 0xFF) * 256 + (buffer[address] & 0xFF));
extras = String.format ("$%04X", ptr2);
jumps.add (new Jump (ptr, ptr2));
}
else
{
int address = ptr + length + p1;
extras = String.format ("$%04X", address);
jumps.add (new Jump (ptr, address));
}
break;
// UB
case 160: // AOJ
case 170: // SAS
case 174: // CIP
case 188: // LDM
case 189: // STM
case 194: // CBP
case 206: // CLP
case 207: // CGP
p1 = buffer[ptr + 1] & 0xFF;
setParameters (p1);
break;
// CSP
case 158:
p1 = buffer[ptr + 1] & 0xFF;
if (p1 < CSP.length)
description = "Call standard procedure - " + CSP[p1];
else
description = "Call standard procedure - index out of bounds";
break;
// Non-integer comparisons
case 175:
case 176:
case 177:
case 180:
case 181:
case 183:
p1 = buffer[ptr + 1] & 0xFF; // 2/4/6/8/10/12
if (p1 < 0 || p1 >= compValue.length)
{
System.out.printf ("%d %d %d%n", val, p1, ptr);
mnemonic += "******************************";
break;
}
mnemonic += compValue[p1];
if (p1 == 10 || p1 == 12)
{
length = getLengthOfB (buffer[ptr + 2]) + 2;
p2 = getValueOfB (buffer, ptr + 2, length - 2);
setParameters (p2);
}
break;
default:
System.out.println ("Forgot : " + val);
}
}
}
}
private int getWord (byte[] buffer, int ptr)
{
return (buffer[ptr + 1] & 0xFF) * 256 + (buffer[ptr] & 0xFF);
}
private int getLengthOfB (byte b)
{
return (b & 0x80) == 0x80 ? 2 : 1;
}
private int getValueOfB (byte[] buffer, int ptr, int length)
{
if (length == 2)
return (buffer[ptr] & 0x7F) * 256 + (buffer[ptr + 1] & 0xFF);
return buffer[ptr] & 0xFF;
}
private void setParameters (int p1)
{
description = description.replaceFirst (":1", p1 + "");
extras = "#" + p1;
}
private void setParameters (int p1, int p2)
{
setParameters (p1);
extras += ", #" + p2;
description = description.replaceFirst (":2", p2 + "");
}
private void setParameters (int p1, int p2, String p3)
{
setParameters (p1, p2);
description = description.replaceFirst (":3", p3);
}
@Override
public String toString ()
{
String hex = getHex (buffer, ptr, length > 4 ? 4 : length);
StringBuilder text = new StringBuilder ();
text.append (String.format ("%2s%05X: %-11s %-6s %-10s %s%n",
jumpTarget ? "->" : "", ptr, hex, mnemonic, extras, description));
if (length > 4)
{
int bytesLeft = length - 4;
int jmp = 0;
int p = ptr + 4;
while (bytesLeft > 0)
{
String line = getHex (buffer, p, (bytesLeft > 4) ? 4 : bytesLeft);
text.append (" " + line);
if (jumps.size () > 0)
{
if (jmp < jumps.size ())
text.append (" " + jumps.get (jmp++));
if (jmp < jumps.size ())
text.append (" " + jumps.get (jmp++));
}
text.append ("\n");
bytesLeft -= 4;
p += 4;
}
}
return text.toString ();
}
private String getHex (byte[] buffer, int offset, int length)
{
if ((offset + length) >= buffer.length)
{
System.out.println ("too many");
return "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
}
StringBuilder text = new StringBuilder ();
for (int i = 0; i < length; i++)
text.append (String.format ("%02X ", buffer[offset + i]));
if (text.length () > 0)
text.deleteCharAt (text.length () - 1);
return text.toString ();
}
class Jump
{
int addressFrom;
int addressTo;
boolean caseJump;
int caseValue;
public Jump (int addressFrom, int addressTo)
{
this.addressFrom = addressFrom;
this.addressTo = addressTo;
}
public Jump (int addressFrom, int addressTo, int value)
{
this (addressFrom, addressTo);
this.caseValue = value;
this.caseJump = true;
}
@Override
public String toString ()
{
if (caseJump)
return String.format ("%3d: %04X", caseValue, addressTo);
return String.format ("%04X", addressTo);
}
}
}
/* from Wizardry info 1.txt
LDC instruction
---------------
Earlier today I noticed the LDC pcode instruction seems to display
differently at times. Then I realized that it is operating with WORD
values and needs to have them aligned on an even BYTE boundary. For
example:
5004 B3 02 8C 3F CD CC
LDC. PUSH 02 WORDS
5017 B3 02 (02)8C 3F CD CC
LDC. PUSH 02 WORDS
package com.bytezone.diskbrowser.applefile;
import java.util.ArrayList;
import java.util.List;
import com.bytezone.diskbrowser.utilities.HexFormatter;
// -----------------------------------------------------------------------------------//
public class PascalCodeStatement implements PascalConstants
// -----------------------------------------------------------------------------------//
{
private static final String[] compValue =
{ "invalid", "", "REAL", "", "STR", "", "BOOL", "", "POWR", "", "BYT", "", "WORD" };
int length;
int val;
int p1, p2, p3;
String mnemonic;
String extras = "";
String description;
String text;
int ptr; // temp
byte[] buffer;
boolean jumpTarget;
List<Jump> jumps = new ArrayList<> ();
// ---------------------------------------------------------------------------------//
public PascalCodeStatement (byte[] buffer, int ptr, int procPtr)
// ---------------------------------------------------------------------------------//
{
this.ptr = ptr;
this.buffer = buffer;
length = 1;
val = buffer[ptr] & 0xFF;
if (val <= 127)
{
mnemonic = "SLDC";
extras = "#" + val;
description = "Short load constant - push #" + val;
}
else if (val >= 248)
{
mnemonic = "SIND";
extras = "#" + (val - 248);
description = "Short index load - push word *ToS + #" + (val - 248);
}
else if (val >= 232)
{
mnemonic = "SLDO";
extras = "#" + (val - 231);
description = "Short load global - push BASE + #" + (val - 231);
}
else if (val >= 216)
{
mnemonic = "SLDL";
extras = "#" + (val - 215);
description = "Short load local - push MP + #" + (val - 215);
}
else
{
mnemonic = mnemonics[val - 128];
description = descriptions[val - 128];
length = mnemonicSize[val - 128];
if (length != 1)
{
switch (val)
{
// W1, W2, W3, <table> - word aligned case jump
case 172: //XJP
int padding = (ptr % 2) == 0 ? 1 : 0;
p1 = getWord (buffer, ptr + padding + 1);
p2 = getWord (buffer, ptr + padding + 3);
p3 = getWord (buffer, ptr + padding + 5);
length = (p2 - p1 + 1) * 2 + 7 + padding;
setParameters (p1, p2, String.format ("%04X", p3));
int v = p1;
int min = ptr + padding + 7;
int max = min + (p2 - p1) * 2;
for (int i = min; i <= max; i += 2)
{
jumps.add (new Jump (i,
i - HexFormatter.intValue (buffer[i], buffer[i + 1]), v++));
}
break;
// UB, <block> - word aligned
case 179: //LDC
p1 = buffer[ptr + 1] & 0xFF;
padding = ptr % 2 == 0 ? 0 : 1;
length = p1 * 2 + padding + 2;
setParameters (p1);
break;
// UB, <chars>
case 166: // LSA
case 208: // LPA
p1 = buffer[ptr + 1] & 0xFF;
length = p1 + 2;
if (val == 166)
{
text = HexFormatter.getPascalString (buffer, ptr + 1);
description += ": " + text;
}
break;
// W
case 199: // LDCI
p1 = getWord (buffer, ptr + 1);
setParameters (p1);
break;
// B
case 162: // INC
case 163: // IND
case 164: // IXA
case 165: // LAO
case 168: // MOV
case 169: // LDO
case 171: // SRO
case 198: // LLA
case 202: // LDL
case 204: // STL
case 213: // BPT
length = getLengthOfB (buffer[ptr + 1]) + 1;
p1 = getValueOfB (buffer, ptr + 1, length - 1);
setParameters (p1);
break;
// DB, B or UB, B
case 157: // LDE
case 167: // LAE
case 178: // LDA
case 182: // LOD
case 184: // STR
case 209: // STE
length = getLengthOfB (buffer[ptr + 2]) + 2;
p1 = buffer[ptr + 1] & 0xFF;
p2 = getValueOfB (buffer, ptr + 2, length - 2);
setParameters (p1, p2);
break;
// UB1, UB2
case 192: // IXP
case 205: // CXP
p1 = buffer[ptr + 1] & 0xFF;
p2 = buffer[ptr + 2] & 0xFF;
setParameters (p1, p2);
break;
// SB or DB
case 161: // FJP
case 173: // RNP
case 185: // UJP
case 193: // RBP
case 211: // EFJ
case 212: // NFJ
p1 = buffer[ptr + 1];
if (val == 173 || val == 193) // return from procedure
setParameters (p1);
else if (p1 < 0)
{
// look up jump table entry
int address = procPtr + p1;
int ptr2 = address
- ((buffer[address + 1] & 0xFF) * 256 + (buffer[address] & 0xFF));
extras = String.format ("$%04X", ptr2);
jumps.add (new Jump (ptr, ptr2));
}
else
{
int address = ptr + length + p1;
extras = String.format ("$%04X", address);
jumps.add (new Jump (ptr, address));
}
break;
// UB
case 160: // AOJ
case 170: // SAS
case 174: // CIP
case 188: // LDM
case 189: // STM
case 194: // CBP
case 206: // CLP
case 207: // CGP
p1 = buffer[ptr + 1] & 0xFF;
setParameters (p1);
break;
// CSP
case 158:
p1 = buffer[ptr + 1] & 0xFF;
if (p1 < CSP.length)
description = "Call standard procedure - " + CSP[p1];
else
description = "Call standard procedure - index out of bounds";
break;
// Non-integer comparisons
case 175:
case 176:
case 177:
case 180:
case 181:
case 183:
p1 = buffer[ptr + 1] & 0xFF; // 2/4/6/8/10/12
if (p1 < 0 || p1 >= compValue.length)
{
System.out.printf ("%d %d %d%n", val, p1, ptr);
mnemonic += "******************************";
break;
}
mnemonic += compValue[p1];
if (p1 == 10 || p1 == 12)
{
length = getLengthOfB (buffer[ptr + 2]) + 2;
p2 = getValueOfB (buffer, ptr + 2, length - 2);
setParameters (p2);
}
break;
default:
System.out.println ("Forgot : " + val);
}
}
}
}
// ---------------------------------------------------------------------------------//
private int getWord (byte[] buffer, int ptr)
// ---------------------------------------------------------------------------------//
{
return (buffer[ptr + 1] & 0xFF) * 256 + (buffer[ptr] & 0xFF);
}
// ---------------------------------------------------------------------------------//
private int getLengthOfB (byte b)
// ---------------------------------------------------------------------------------//
{
return (b & 0x80) == 0x80 ? 2 : 1;
}
// ---------------------------------------------------------------------------------//
private int getValueOfB (byte[] buffer, int ptr, int length)
// ---------------------------------------------------------------------------------//
{
if (length == 2)
return (buffer[ptr] & 0x7F) * 256 + (buffer[ptr + 1] & 0xFF);
return buffer[ptr] & 0xFF;
}
// ---------------------------------------------------------------------------------//
private void setParameters (int p1)
// ---------------------------------------------------------------------------------//
{
description = description.replaceFirst (":1", p1 + "");
extras = "#" + p1;
}
// ---------------------------------------------------------------------------------//
private void setParameters (int p1, int p2)
// ---------------------------------------------------------------------------------//
{
setParameters (p1);
extras += ", #" + p2;
description = description.replaceFirst (":2", p2 + "");
}
// ---------------------------------------------------------------------------------//
private void setParameters (int p1, int p2, String p3)
// ---------------------------------------------------------------------------------//
{
setParameters (p1, p2);
description = description.replaceFirst (":3", p3);
}
// ---------------------------------------------------------------------------------//
@Override
public String toString ()
// ---------------------------------------------------------------------------------//
{
String hex = getHex (buffer, ptr, length > 4 ? 4 : length);
StringBuilder text = new StringBuilder ();
text.append (String.format ("%2s%05X: %-11s %-6s %-10s %s%n",
jumpTarget ? "->" : "", ptr, hex, mnemonic, extras, description));
if (length > 4)
{
int bytesLeft = length - 4;
int jmp = 0;
int p = ptr + 4;
while (bytesLeft > 0)
{
String line = getHex (buffer, p, (bytesLeft > 4) ? 4 : bytesLeft);
text.append (" " + line);
if (jumps.size () > 0)
{
if (jmp < jumps.size ())
text.append (" " + jumps.get (jmp++));
if (jmp < jumps.size ())
text.append (" " + jumps.get (jmp++));
}
text.append ("\n");
bytesLeft -= 4;
p += 4;
}
}
return text.toString ();
}
// ---------------------------------------------------------------------------------//
private String getHex (byte[] buffer, int offset, int length)
// ---------------------------------------------------------------------------------//
{
if ((offset + length) >= buffer.length)
{
System.out.println ("too many");
return "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
}
StringBuilder text = new StringBuilder ();
for (int i = 0; i < length; i++)
text.append (String.format ("%02X ", buffer[offset + i]));
if (text.length () > 0)
text.deleteCharAt (text.length () - 1);
return text.toString ();
}
// ---------------------------------------------------------------------------------//
class Jump
// ---------------------------------------------------------------------------------//
{
int addressFrom;
int addressTo;
boolean caseJump;
int caseValue;
public Jump (int addressFrom, int addressTo)
{
this.addressFrom = addressFrom;
this.addressTo = addressTo;
}
public Jump (int addressFrom, int addressTo, int value)
{
this (addressFrom, addressTo);
this.caseValue = value;
this.caseJump = true;
}
@Override
public String toString ()
{
if (caseJump)
return String.format ("%3d: %04X", caseValue, addressTo);
return String.format ("%04X", addressTo);
}
}
}
/* from Wizardry info 1.txt
LDC instruction
---------------
Earlier today I noticed the LDC pcode instruction seems to display
differently at times. Then I realized that it is operating with WORD
values and needs to have them aligned on an even BYTE boundary. For
example:
5004 B3 02 8C 3F CD CC
LDC. PUSH 02 WORDS
5017 B3 02 (02)8C 3F CD CC
LDC. PUSH 02 WORDS
*/

185
src/com/bytezone/diskbrowser/applefile/PascalConstants.java
View File

@ -1,92 +1,95 @@
package com.bytezone.diskbrowser.applefile;
public interface PascalConstants
{
static String[] mnemonics =
{ "ABI", "ABR", "ADI", "ADR", "LAND", "DIF", "DVI", "DVR", "CHK", "FLO", "FLT",
"INN", "INT", "LOR", "MODI", "MPI", "MPR", "NGI", "NGR", "LNOT", "SRS", "SBI",
"SBR", "SGS", "SQI", "SQR", "STO", "IXS", "UNI", "LDE", "CSP", "LDCN", "ADJ",
"FJP", "INC", "IND", "IXA", "LAO", "LSA", "LAE", "MOV", "LDO", "SAS", "SRO",
"XJP", "RNP", "CIP", "EQU", "GEQ", "GRT", "LDA", "LDC", "LEQ", "LES", "LOD",
"NEQ", "STR", "UJP", "LDP", "STP", "LDM", "STM", "LDB", "STB", "IXP", "RBP",
"CBP", "EQUI", "GEQI", "GRTI", "LLA", "LDCI", "LEQI", "LESI", "LDL", "NEQI",
"STL", "CXP", "CLP", "CGP", "LPA", "STE", "???", "EFJ", "NFJ", "BPT", "XIT",
"NOP" };
static int[] mnemonicSize =
//
// 128 - 155
// 156 - 183
// 184 - 211
// 212 - 239
// 240 - 255
{ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 3, 2, 1, 2, 2, 2, 2, 2, 2, 0, 3, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 3, 0, 2, 2,
3, 2, 3, 2, 1, 1, 2, 2, 1, 1, 3, 2, 2, 1, 1, 1, 2, 3, 1, 1, 2, 1, 2, 3, 2, 2, 0,
3, 1, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 };
static String[] descriptions =
{ "Absolute value of integer - push ABS(ToS)",
"Absolute value of real - push abs((real)ToS)", "Add integers (tos + tos-1)",
"Add reals - push ToS + ToS-1", "Logical AND",
"Set difference - push difference of sets ToS-1 and ToS",
"Divide integers - push ToS-1 / ToS", "Divide reals - push ToS-1 / ToS",
"Check subrange bounds - assert ToS-1 <= ToS-2 <= ToS, pop ToS, pop ToS-1",
"Float next-to-ToS - push integer ToS-1 after converting to a real",
"Float ToS - push integer ToS after converting to a float",
"Set Membership - if int ToS-1 is in set ToS, push true, else push false",
"Set Intersection - push TOS AND TOS-1", "Logical OR",
"Modulo integers - push ToS-1 % ToS", "Multiply TOS by TOS-1",
"Multiply reals - push ToS-1 * ToS",
"Negate Integer - push two's complement of ToS",
"Negate real - push -((real)ToS)", "Logical Not - push one's complement of ToS",
"Build a subrange set", "Subtract Integers push ToS-1 - ToS",
"Subtract reals - push ToS-1 - ToS", "Build a singleton set",
"Square integer - push ToS ^ 2", "Square real - push ToS ^ 2",
"Store indirect word - store ToS into word pointed to by ToS-1",
"Index string array - push &(*ToS-1 + ToS)",
"Set union - push union of sets ToS OR ToS-1",
"Load extended word - push word at segment :1+:2",
"Call Standard Procedure #:1 - ", "Load Constant NIL", "Adjust set",
"Jump if ToS false", "Increment field ptr - push ToS+:1",
"Static index and load word", "Compute word pointer from ToS-1 + ToS * :1 words",
"Load Global - push (BASE+:1)", "Load constant string address",
"Load extended address - push address of word at segment :1+:2",
"Move words - transfer :1 words from *ToS to *ToS-1",
"Load Global Word - push BASE+:1", "String Assign", "Store TOS into BASE+:1",
"Case Jump - :1::2, Error: :3", "Return from non-base procedure (pass :1 words)",
"Call intermediate procedure #:1", "ToS-1 == ToS", "ToS-1 >= ToS", "ToS-1 > ToS",
"Load Intermediate Address - push :1th activation record +:2 bytes",
"Load multi-word constant - :1 words", "ToS-1 <= ToS", "ToS-1 < ToS",
"Load Intermediate Word - push :1th activation record +:2 bytes", "ToS-1 <> ToS",
"Store intermediate word - store TOS into :2, traverse :1", "Unconditional jump",
"Load Packed Field - push *ToS", "Store into packed field",
"Load multiple words - push block of unsigned bytes at *ToS",
"Store multiple words - store block of UB at ToS to *ToS-1",
"Load Byte - index the byte pointer ToS-1 by integer index ToS and push that byte",
"Store Byte - index the byte pointer ToS-2 by integer index ToS-1 and move ToS to that location",
"Index packed array - do complicated stuff with :1 and :2",
"Return from base procedure (pass :1 words)",
"Call Base Procedure :1 at lex level -1 or 0", "Compare Integer : ToS-1 = ToS",
"Compare Integer : TOS-1 >= TOS", "Compare Integer : TOS-1 > ToS",
"Load Local Address - push MP+:1", "Load Word - push #:1",
"Compare Integer : TOS-1 <= TOS", "Compare Integer : TOS-1 < ToS",
"Load Local Word - push MP+:1", "Compare Integer : TOS-1 <> TOS",
"Store Local Word - store ToS into MP+:1",
"Call external procedure #:2 in segment #:1", "Call local procedure #:1",
"Call global procedure #:1", "Load a packed array - use :1 and :2",
"Store extended word - store ToS into word at segment :1+:2", "210 ",
"Equal false jump - jump :1 if ToS-1 <> ToS",
"Not equal false jump - jump :1 if ToS-1 == ToS",
"Breakpoint - not used (does NOP)", "Exit OS - cold boot", "No-op" };
static String[] CSP =
{ "000", "NEW", "MVL", "MVR", "EXIT", "", "", "IDS", "TRS", "TIM", "FLC", "SCN", "",
"", "", "", "", "", "", "", "", "021", "TNC", "RND", "", "", "", "", "", "", "",
"MRK", "RLS", "33", "34", "POT", "36", "37", "38", "39", "40" };
static String[] SegmentKind = { "Linked", "HostSeg", "SegProc", "UnitSeg", "SeprtSeg",
"UnlinkedIntrins", "LinkedIntrins", "DataSeg" };
package com.bytezone.diskbrowser.applefile;
// -----------------------------------------------------------------------------------//
public interface PascalConstants
// -----------------------------------------------------------------------------------//
{
static String[] mnemonics =
{ "ABI", "ABR", "ADI", "ADR", "LAND", "DIF", "DVI", "DVR", "CHK", "FLO", "FLT",
"INN", "INT", "LOR", "MODI", "MPI", "MPR", "NGI", "NGR", "LNOT", "SRS", "SBI",
"SBR", "SGS", "SQI", "SQR", "STO", "IXS", "UNI", "LDE", "CSP", "LDCN", "ADJ",
"FJP", "INC", "IND", "IXA", "LAO", "LSA", "LAE", "MOV", "LDO", "SAS", "SRO",
"XJP", "RNP", "CIP", "EQU", "GEQ", "GRT", "LDA", "LDC", "LEQ", "LES", "LOD",
"NEQ", "STR", "UJP", "LDP", "STP", "LDM", "STM", "LDB", "STB", "IXP", "RBP",
"CBP", "EQUI", "GEQI", "GRTI", "LLA", "LDCI", "LEQI", "LESI", "LDL", "NEQI",
"STL", "CXP", "CLP", "CGP", "LPA", "STE", "???", "EFJ", "NFJ", "BPT", "XIT",
"NOP" };
static int[] mnemonicSize =
//
// 128 - 155
// 156 - 183
// 184 - 211
// 212 - 239
// 240 - 255
{ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 3, 2, 1, 2, 2, 2, 2, 2, 2, 0, 3, 2, 2, 2, 2, 0, 2, 2, 2, 2, 2, 3, 0, 2, 2,
3, 2, 3, 2, 1, 1, 2, 2, 1, 1, 3, 2, 2, 1, 1, 1, 2, 3, 1, 1, 2, 1, 2, 3, 2, 2, 0,
3, 1, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 };
static String[] descriptions =
{ "Absolute value of integer - push ABS(ToS)",
"Absolute value of real - push abs((real)ToS)", "Add integers (tos + tos-1)",
"Add reals - push ToS + ToS-1", "Logical AND",
"Set difference - push difference of sets ToS-1 and ToS",
"Divide integers - push ToS-1 / ToS", "Divide reals - push ToS-1 / ToS",
"Check subrange bounds - assert ToS-1 <= ToS-2 <= ToS, pop ToS, pop ToS-1",
"Float next-to-ToS - push integer ToS-1 after converting to a real",
"Float ToS - push integer ToS after converting to a float",
"Set Membership - if int ToS-1 is in set ToS, push true, else push false",
"Set Intersection - push TOS AND TOS-1", "Logical OR",
"Modulo integers - push ToS-1 % ToS", "Multiply TOS by TOS-1",
"Multiply reals - push ToS-1 * ToS",
"Negate Integer - push two's complement of ToS",
"Negate real - push -((real)ToS)", "Logical Not - push one's complement of ToS",
"Build a subrange set", "Subtract Integers push ToS-1 - ToS",
"Subtract reals - push ToS-1 - ToS", "Build a singleton set",
"Square integer - push ToS ^ 2", "Square real - push ToS ^ 2",
"Store indirect word - store ToS into word pointed to by ToS-1",
"Index string array - push &(*ToS-1 + ToS)",
"Set union - push union of sets ToS OR ToS-1",
"Load extended word - push word at segment :1+:2",
"Call Standard Procedure #:1 - ", "Load Constant NIL", "Adjust set",
"Jump if ToS false", "Increment field ptr - push ToS+:1",
"Static index and load word", "Compute word pointer from ToS-1 + ToS * :1 words",
"Load Global - push (BASE+:1)", "Load constant string address",
"Load extended address - push address of word at segment :1+:2",
"Move words - transfer :1 words from *ToS to *ToS-1",
"Load Global Word - push BASE+:1", "String Assign", "Store TOS into BASE+:1",
"Case Jump - :1::2, Error: :3", "Return from non-base procedure (pass :1 words)",
"Call intermediate procedure #:1", "ToS-1 == ToS", "ToS-1 >= ToS", "ToS-1 > ToS",
"Load Intermediate Address - push :1th activation record +:2 bytes",
"Load multi-word constant - :1 words", "ToS-1 <= ToS", "ToS-1 < ToS",
"Load Intermediate Word - push :1th activation record +:2 bytes", "ToS-1 <> ToS",
"Store intermediate word - store TOS into :2, traverse :1", "Unconditional jump",
"Load Packed Field - push *ToS", "Store into packed field",
"Load multiple words - push block of unsigned bytes at *ToS",
"Store multiple words - store block of UB at ToS to *ToS-1",
"Load Byte - index the byte pointer ToS-1 by integer index ToS and push that byte",
"Store Byte - index the byte pointer ToS-2 by integer "
+ "index ToS-1 and move ToS to that location",
"Index packed array - do complicated stuff with :1 and :2",
"Return from base procedure (pass :1 words)",
"Call Base Procedure :1 at lex level -1 or 0", "Compare Integer : ToS-1 = ToS",
"Compare Integer : TOS-1 >= TOS", "Compare Integer : TOS-1 > ToS",
"Load Local Address - push MP+:1", "Load Word - push #:1",
"Compare Integer : TOS-1 <= TOS", "Compare Integer : TOS-1 < ToS",
"Load Local Word - push MP+:1", "Compare Integer : TOS-1 <> TOS",
"Store Local Word - store ToS into MP+:1",
"Call external procedure #:2 in segment #:1", "Call local procedure #:1",
"Call global procedure #:1", "Load a packed array - use :1 and :2",
"Store extended word - store ToS into word at segment :1+:2", "210 ",
"Equal false jump - jump :1 if ToS-1 <> ToS",
"Not equal false jump - jump :1 if ToS-1 == ToS",
"Breakpoint - not used (does NOP)", "Exit OS - cold boot", "No-op" };
static String[] CSP =
{ "000", "NEW", "MVL", "MVR", "EXIT", "", "", "IDS", "TRS", "TIM", "FLC", "SCN", "",
"", "", "", "", "", "", "", "", "021", "TNC", "RND", "", "", "", "", "", "", "",
"MRK", "RLS", "33", "34", "POT", "36", "37", "38", "39", "40" };
static String[] SegmentKind = { "Linked", "HostSeg", "SegProc", "UnitSeg", "SeprtSeg",
"UnlinkedIntrins", "LinkedIntrins", "DataSeg" };
}

9
src/com/bytezone/diskbrowser/applefile/PascalInfo.java
View File

@ -1,15 +1,20 @@
package com.bytezone.diskbrowser.applefile;
// -----------------------------------------------------------------------------------//
public class PascalInfo extends AbstractFile
// -----------------------------------------------------------------------------------//
{
// ---------------------------------------------------------------------------------//
public PascalInfo (String name, byte[] buffer)
// ---------------------------------------------------------------------------------//
{
super (name, buffer);
}
// ---------------------------------------------------------------------------------//
@Override
public String getText ()
// ---------------------------------------------------------------------------------//
{
StringBuilder text = new StringBuilder (getHeader ());
@ -22,7 +27,9 @@ public class PascalInfo extends AbstractFile
return text.toString ();
}
// ---------------------------------------------------------------------------------//
private String getHeader ()
// ---------------------------------------------------------------------------------//
{
return "Name : " + name + "\n\n";
}

386
src/com/bytezone/diskbrowser/applefile/PascalProcedure.java
View File

@ -1,189 +1,199 @@
package com.bytezone.diskbrowser.applefile;
import java.util.ArrayList;
import java.util.List;
import com.bytezone.diskbrowser.applefile.PascalCodeStatement.Jump;
import com.bytezone.diskbrowser.utilities.HexFormatter;
public class PascalProcedure
{
// all procedures have these fields
byte[] buffer;
int procOffset;
int offset;
int slot;
boolean valid;
// only valid procedures have these fields
int procedureNo;
int procLevel;
int codeStart;
int codeEnd;
int parmSize;
int dataSize;
List<PascalCodeStatement> statements = new ArrayList<> ();
AssemblerProgram assembler;
int jumpTable = -8;
public PascalProcedure (byte[] buffer, int slot)
{
this.buffer = buffer;
this.slot = slot;
int p = buffer.length - 2 - slot * 2;
offset = HexFormatter.intValue (buffer[p], buffer[p + 1]);
procOffset = p - offset;
valid = procOffset > 0;
if (valid)
{
procedureNo = buffer[procOffset] & 0xFF;
procLevel = buffer[procOffset + 1] & 0xFF;
codeStart = HexFormatter.intValue (buffer[procOffset - 2], buffer[procOffset - 1]);
codeEnd = HexFormatter.intValue (buffer[procOffset - 4], buffer[procOffset - 3]);
parmSize = HexFormatter.intValue (buffer[procOffset - 6], buffer[procOffset - 5]);
dataSize = HexFormatter.intValue (buffer[procOffset - 8], buffer[procOffset - 7]);
}
}
private void decode ()
{
if (statements.size () > 0 || assembler != null)
return;
int ptr = procOffset - codeStart - 2;
int max = procOffset + jumpTable;
if (codeEnd == 0)
{
int len = codeStart + jumpTable + 2;
if (len > 0)
{
byte[] asmBuf = new byte[len];
System.arraycopy (buffer, ptr, asmBuf, 0, len);
assembler = new AssemblerProgram ("Proc", asmBuf, ptr);
}
return;
}
while (ptr < max)
{
// System.out.printf ("ptr:%d, max:%d, buf:%d %n", ptr, max, buffer.length);
if (ptr >= buffer.length || ptr < 0)
{
System.out.printf ("Ptr outside buffer: %d %d%n", ptr, buffer.length);
break;
}
PascalCodeStatement cs = new PascalCodeStatement (buffer, ptr, procOffset);
if (cs.length <= 0)
{
System.out.println ("error - length <= 0 : " + cs);
break;
}
statements.add (cs);
if (cs.val == 185 || cs.val == 161)
if (cs.p1 < jumpTable)
{
jumpTable = cs.p1;
max = procOffset + jumpTable;
}
ptr += cs.length;
}
// Tidy up left-over bytes at the end
if (statements.size () > 1)
{
PascalCodeStatement lastStatement = statements.get (statements.size () - 1);
PascalCodeStatement secondLastStatement = statements.get (statements.size () - 2);
if (lastStatement.val == 0 && (secondLastStatement.val == 0xD6
|| secondLastStatement.val == 0xC1 || secondLastStatement.val == 0xAD))
statements.remove (statements.size () - 1);
}
// Mark statements that are jump targets
int actualEnd = procOffset - codeEnd - 4;
for (PascalCodeStatement cs : statements)
{
if (cs.ptr == actualEnd)
{
cs.jumpTarget = true;
continue;
}
for (Jump cj : cs.jumps)
for (PascalCodeStatement cs2 : statements)
if (cs2.ptr == cj.addressTo)
{
cs2.jumpTarget = true;
break;
}
}
}
public List<PascalCodeStatement> extractStrings ()
{
decode ();
List<PascalCodeStatement> strings = new ArrayList<> ();
for (PascalCodeStatement cs : statements)
if (cs.val == 166)
strings.add (cs);
return strings;
}
@Override
public String toString ()
{
if (!valid)
return "";
decode ();
StringBuilder text = new StringBuilder ("\nProcedure Header\n================\n\n");
if (false)
text.append (
HexFormatter.format (buffer, procOffset + jumpTable, 2 - jumpTable) + "\n\n");
text.append (
String.format ("Level.......%5d %02X%n", procLevel, procLevel & 0xFF));
text.append (String.format ("Proc no.....%5d %02X%n", procedureNo, procedureNo));
text.append (String.format ("Code entry..%5d %04X (%04X - %04X = %04X)%n",
codeStart, codeStart, (procOffset - 2), codeStart, (procOffset - codeStart - 2)));
text.append (String.format ("Code exit...%5d %04X", codeEnd, codeEnd));
if (codeEnd > 0)
text.append (String.format (" (%04X - %04X = %04X)%n", (procOffset - 4), codeEnd,
(procOffset - codeEnd - 4)));
else
text.append (String.format ("%n"));
text.append (String.format ("Parm size...%5d %04X%n", parmSize, parmSize));
text.append (String.format ("Data size...%5d %04X%n%n", dataSize, dataSize));
text.append ("Procedure Code\n==============\n\n");
int ptr = procOffset - codeStart - 2;
if (false)
text.append (HexFormatter.format (buffer, ptr, codeStart + jumpTable + 2) + "\n\n");
if (codeEnd == 0)
{
if (assembler != null)
text.append (assembler.getAssembler () + "\n");
else
text.append ("Null assembler in PascalProcedure");
}
else
{
for (PascalCodeStatement cs : statements)
text.append (cs);
if (jumpTable < -8 && false)
{
text.append ("\nJump table:\n");
for (int i = procOffset + jumpTable; i < procOffset - 8; i += 2)
{
ptr = i - ((buffer[i + 1] & 0xFF) * 256 + (buffer[i] & 0xFF));
text.append (String.format ("%05X : %02X %02X --> %04X%n", i, buffer[i],
buffer[i + 1], ptr));
}
}
}
return text.toString ();
}
package com.bytezone.diskbrowser.applefile;
import java.util.ArrayList;
import java.util.List;
import com.bytezone.diskbrowser.applefile.PascalCodeStatement.Jump;
import com.bytezone.diskbrowser.utilities.HexFormatter;
// -----------------------------------------------------------------------------------//
public class PascalProcedure
// -----------------------------------------------------------------------------------//
{
// all procedures have these fields
byte[] buffer;
int procOffset;
int offset;
int slot;
boolean valid;
// only valid procedures have these fields
int procedureNo;
int procLevel;
int codeStart;
int codeEnd;
int parmSize;
int dataSize;
List<PascalCodeStatement> statements = new ArrayList<> ();
AssemblerProgram assembler;
int jumpTable = -8;
// ---------------------------------------------------------------------------------//
public PascalProcedure (byte[] buffer, int slot)
// ---------------------------------------------------------------------------------//
{
this.buffer = buffer;
this.slot = slot;
int p = buffer.length - 2 - slot * 2;
offset = HexFormatter.intValue (buffer[p], buffer[p + 1]);
procOffset = p - offset;
valid = procOffset > 0;
if (valid)
{
procedureNo = buffer[procOffset] & 0xFF;
procLevel = buffer[procOffset + 1] & 0xFF;
codeStart = HexFormatter.intValue (buffer[procOffset - 2], buffer[procOffset - 1]);
codeEnd = HexFormatter.intValue (buffer[procOffset - 4], buffer[procOffset - 3]);
parmSize = HexFormatter.intValue (buffer[procOffset - 6], buffer[procOffset - 5]);
dataSize = HexFormatter.intValue (buffer[procOffset - 8], buffer[procOffset - 7]);
}
}
// ---------------------------------------------------------------------------------//
private void decode ()
// ---------------------------------------------------------------------------------//
{
if (statements.size () > 0 || assembler != null)
return;
int ptr = procOffset - codeStart - 2;
int max = procOffset + jumpTable;
if (codeEnd == 0)
{
int len = codeStart + jumpTable + 2;
if (len > 0)
{
byte[] asmBuf = new byte[len];
System.arraycopy (buffer, ptr, asmBuf, 0, len);
assembler = new AssemblerProgram ("Proc", asmBuf, ptr);
}
return;
}
while (ptr < max)
{
// System.out.printf ("ptr:%d, max:%d, buf:%d %n", ptr, max, buffer.length);
if (ptr >= buffer.length || ptr < 0)
{
System.out.printf ("Ptr outside buffer: %d %d%n", ptr, buffer.length);
break;
}
PascalCodeStatement cs = new PascalCodeStatement (buffer, ptr, procOffset);
if (cs.length <= 0)
{
System.out.println ("error - length <= 0 : " + cs);
break;
}
statements.add (cs);
if (cs.val == 185 || cs.val == 161)
if (cs.p1 < jumpTable)
{
jumpTable = cs.p1;
max = procOffset + jumpTable;
}
ptr += cs.length;
}
// Tidy up left-over bytes at the end
if (statements.size () > 1)
{
PascalCodeStatement lastStatement = statements.get (statements.size () - 1);
PascalCodeStatement secondLastStatement = statements.get (statements.size () - 2);
if (lastStatement.val == 0 && (secondLastStatement.val == 0xD6
|| secondLastStatement.val == 0xC1 || secondLastStatement.val == 0xAD))
statements.remove (statements.size () - 1);
}
// Mark statements that are jump targets
int actualEnd = procOffset - codeEnd - 4;
for (PascalCodeStatement cs : statements)
{
if (cs.ptr == actualEnd)
{
cs.jumpTarget = true;
continue;
}
for (Jump cj : cs.jumps)
for (PascalCodeStatement cs2 : statements)
if (cs2.ptr == cj.addressTo)
{
cs2.jumpTarget = true;
break;
}
}
}
// ---------------------------------------------------------------------------------//
public List<PascalCodeStatement> extractStrings ()
// ---------------------------------------------------------------------------------//
{
decode ();
List<PascalCodeStatement> strings = new ArrayList<> ();
for (PascalCodeStatement cs : statements)
if (cs.val == 166)
strings.add (cs);
return strings;
}
// ---------------------------------------------------------------------------------//
@Override
public String toString ()
// ---------------------------------------------------------------------------------//
{
if (!valid)
return "";
decode ();
StringBuilder text = new StringBuilder ("\nProcedure Header\n================\n\n");
if (false)
text.append (
HexFormatter.format (buffer, procOffset + jumpTable, 2 - jumpTable) + "\n\n");
text.append (
String.format ("Level.......%5d %02X%n", procLevel, procLevel & 0xFF));
text.append (String.format ("Proc no.....%5d %02X%n", procedureNo, procedureNo));
text.append (String.format ("Code entry..%5d %04X (%04X - %04X = %04X)%n",
codeStart, codeStart, (procOffset - 2), codeStart, (procOffset - codeStart - 2)));
text.append (String.format ("Code exit...%5d %04X", codeEnd, codeEnd));
if (codeEnd > 0)
text.append (String.format (" (%04X - %04X = %04X)%n", (procOffset - 4), codeEnd,
(procOffset - codeEnd - 4)));
else
text.append (String.format ("%n"));
text.append (String.format ("Parm size...%5d %04X%n", parmSize, parmSize));
text.append (String.format ("Data size...%5d %04X%n%n", dataSize, dataSize));
text.append ("Procedure Code\n==============\n\n");
int ptr = procOffset - codeStart - 2;
if (false)
text.append (HexFormatter.format (buffer, ptr, codeStart + jumpTable + 2) + "\n\n");
if (codeEnd == 0)
{
if (assembler != null)
text.append (assembler.getAssembler () + "\n");
else
text.append ("Null assembler in PascalProcedure");
}
else
{
for (PascalCodeStatement cs : statements)
text.append (cs);
if (jumpTable < -8 && false)
{
text.append ("\nJump table:\n");
for (int i = procOffset + jumpTable; i < procOffset - 8; i += 2)
{
ptr = i - ((buffer[i + 1] & 0xFF) * 256 + (buffer[i] & 0xFF));
text.append (String.format ("%05X : %02X %02X --> %04X%n", i, buffer[i],
buffer[i + 1], ptr));
}
}
}
return text.toString ();
}
}

468
src/com/bytezone/diskbrowser/applefile/PascalSegment.java
View File

@ -1,229 +1,241 @@
package com.bytezone.diskbrowser.applefile;
import java.util.ArrayList;
import java.util.List;
import com.bytezone.diskbrowser.utilities.FileFormatException;
import com.bytezone.diskbrowser.utilities.HexFormatter;
public class PascalSegment extends AbstractFile implements PascalConstants
{
private final static int BLOCK_SIZE = 512;
final int segmentNoHeader;
private int segmentNoBody;
// private final int blockOffset;
// private final Relocator relocator;
boolean debug = false;
public int blockNo;
// public int newBlockNo;
public final int size;
private final int segKind;
private final int textAddress;
private final int machineType;
private final int version;
private final int intrinsSegs1;
private final int intrinsSegs2;
private final int slot;
private int totalProcedures;
private List<PascalProcedure> procedures;
// private List<MultiDiskAddress> addresses;
public PascalSegment (String name, byte[] fullBuffer, int seq, int blockOffset)
{
super (name, fullBuffer); // sets this.buffer to the full buffer temporarily
this.slot = seq;
// this.blockOffset = blockOffset;
// this.relocator = relocator;
this.blockNo = HexFormatter.intValue (fullBuffer[seq * 4], fullBuffer[seq * 4 + 1]);
this.size = HexFormatter.intValue (fullBuffer[seq * 4 + 2], fullBuffer[seq * 4 + 3]);
segKind = HexFormatter.intValue (fullBuffer[0xC0 + seq * 2],
fullBuffer[0xC0 + seq * 2 + 1]);
textAddress = HexFormatter.intValue (fullBuffer[0xE0 + seq * 2],
fullBuffer[0xE0 + seq * 2 + 1]);
// segment 1 is the main segment, 2-6 are used by the system, and 7
// onwards is for the program
this.segmentNoHeader = fullBuffer[0x100 + seq * 2] & 0xFF;
int flags = fullBuffer[0x101 + seq * 2] & 0xFF;
// 0 unknown,
// 1 positive byte sex p-code
// 2 negative byte sex p-code (apple pascal)
// 3-9 6502 code (7 = apple 6502)
machineType = flags & 0x0F;
version = (flags & 0xD0) >> 5;
intrinsSegs1 = HexFormatter.intValue (fullBuffer[0x120 + seq * 4],
fullBuffer[0x120 + seq * 4 + 1]);
intrinsSegs2 = HexFormatter.intValue (fullBuffer[0x120 + seq * 4 + 2],
fullBuffer[0x120 + seq * 4 + 3]);
int offset = blockNo * 512;
// if (relocator != null)
// {
// // if (segmentNoHeader > 1)
// // {
// int sizeInBlocks = (size - 1) / BLOCK_SIZE + 1;
// int targetBlock = blockNo + blockOffset;
// addresses = relocator.getMultiDiskAddress (name, targetBlock, sizeInBlocks);
// if (addresses.size () > 0)
// {
// MultiDiskAddress multiDiskAddress = addresses.get (0);
// if (multiDiskAddress.diskNumber == 1)
// offset = (multiDiskAddress.physicalBlockNumber - blockOffset) * BLOCK_SIZE;
// else
// offset = -1;
// }
// // }
// }
if (offset < 0)
{
buffer = new byte[0];
}
else if ((offset + size) < fullBuffer.length)
{
buffer = new byte[size]; // replaces this.buffer with the segment buffer only
System.arraycopy (fullBuffer, offset, buffer, 0, size);
totalProcedures = buffer[size - 1] & 0xFF;
segmentNoBody = buffer[size - 2] & 0xFF;
if (debug)
if (segmentNoHeader == 0)
System.out.printf ("Zero segment header in %s seq %d%n", name, seq);
else if (segmentNoBody != segmentNoHeader)
System.out.println (
"Segment number mismatch : " + segmentNoBody + " / " + segmentNoHeader);
}
else
{
throw new FileFormatException ("Error in PascalSegment");
}
}
// void setMultiDiskAddresses (List<MultiDiskAddress> addresses)
// {
// this.addresses = addresses;
// }
private void buildProcedureList ()
{
procedures = new ArrayList<> (totalProcedures);
for (int i = 1; i <= totalProcedures; i++)
procedures.add (new PascalProcedure (buffer, i));
}
public String toText ()
{
int sizeInBlocks = (size - 1) / BLOCK_SIZE + 1;
return String.format (
" %2d %02X %02X %04X %-8s %-15s%3d " + "%02X %d %d %d %d %s",
slot, blockNo, sizeInBlocks, size, name, SegmentKind[segKind], textAddress,
segmentNoHeader, machineType, version, intrinsSegs1, intrinsSegs2,
getMultiDiskAddresses ());
}
@Override
public String getText ()
{
if (procedures == null)
buildProcedureList ();
StringBuilder text = new StringBuilder ();
String title = "Segment - " + name;
text.append (title + "\n"
+ "===============================".substring (0, title.length ()) + "\n\n");
String warning = segmentNoBody == segmentNoHeader ? ""
: String.format (" (%02X in routine)", segmentNoBody);
text.append (String.format ("Address........ %02X%n", blockNo));
// if (addresses != null)
text.append (String.format ("Multi disk .... %s%n", getMultiDiskAddresses ()));
text.append (String.format ("Length......... %04X%n", buffer.length));
text.append (String.format ("Machine type... %d%n", machineType));
text.append (String.format ("Version........ %d%n", version));
text.append (String.format ("Segment........ %02X%s%n", segmentNoHeader, warning));
text.append (String.format ("Total procs.... %d%n", procedures.size ()));
text.append ("\nProcedure Dictionary\n====================\n\n");
int len = procedures.size () * 2 + 2;
if (false)
text.append (HexFormatter.format (buffer, buffer.length - len, len) + "\n\n");
text.append ("Proc Offset Lvl Entry Exit Parm Data Proc header\n");
text.append (
"---- ------ --- ----- ---- ---- ---- --------------------\n");
for (PascalProcedure procedure : procedures)
{
if (procedure.valid)
{
int address = size - procedure.slot * 2 - 2;
text.append (String.format (
" %3d %04X %3d %04X %04X %04X %04X (%04X - %04X = %04X)%n",
procedure.procedureNo, procedure.offset, procedure.procLevel,
procedure.codeStart, procedure.codeEnd, procedure.parmSize,
procedure.dataSize, address, procedure.offset, procedure.procOffset));
}
else
text.append (String.format (" %3d %04X%n", procedure.slot, procedure.offset));
}
text.append ("\nStrings\n=======\n");
for (PascalProcedure pp : procedures)
{
List<PascalCodeStatement> strings = pp.extractStrings ();
for (PascalCodeStatement cs : strings)
text.append (
String.format (" %2d %04X %s%n", pp.procedureNo, cs.ptr, cs.text));
}
for (PascalProcedure procedure : procedures)
if (procedure.valid)
text.append (procedure);
return text.toString ();
}
private String getMultiDiskAddresses ()
{
String multiDiskAddressText = "";
// int sizeInBlocks = (size - 1) / BLOCK_SIZE + 1;
// if (segmentNoHeader == 1) // main segment
// {
// multiDiskAddressText = String.format ("1:%03X", (blockNo + blockOffset));
// }
// else
// if (relocator != null)
// {
// int targetBlock = blockNo + blockOffset;
// List<MultiDiskAddress> addresses =
// relocator.getMultiDiskAddress (name, targetBlock, sizeInBlocks);
// if (addresses.isEmpty ())
// multiDiskAddressText = ".";
// else
// {
// StringBuilder locations = new StringBuilder ();
// for (MultiDiskAddress multiDiskAddress : addresses)
// locations.append (multiDiskAddress.toString () + ", ");
// if (locations.length () > 2)
// {
// locations.deleteCharAt (locations.length () - 1);
// locations.deleteCharAt (locations.length () - 1);
// }
// multiDiskAddressText = locations.toString ();
// }
// }
return multiDiskAddressText;
}
package com.bytezone.diskbrowser.applefile;
import java.util.ArrayList;
import java.util.List;
import com.bytezone.diskbrowser.utilities.FileFormatException;
import com.bytezone.diskbrowser.utilities.HexFormatter;
// -----------------------------------------------------------------------------------//
public class PascalSegment extends AbstractFile implements PascalConstants
// -----------------------------------------------------------------------------------//
{
private final static int BLOCK_SIZE = 512;
final int segmentNoHeader;
private int segmentNoBody;
// private final int blockOffset;
// private final Relocator relocator;
boolean debug = false;
public int blockNo;
// public int newBlockNo;
public final int size;
private final int segKind;
private final int textAddress;
private final int machineType;
private final int version;
private final int intrinsSegs1;
private final int intrinsSegs2;
private final int slot;
private int totalProcedures;
private List<PascalProcedure> procedures;
// private List<MultiDiskAddress> addresses;
// ---------------------------------------------------------------------------------//
public PascalSegment (String name, byte[] fullBuffer, int seq, int blockOffset)
// ---------------------------------------------------------------------------------//
{
super (name, fullBuffer); // sets this.buffer to the full buffer temporarily
this.slot = seq;
// this.blockOffset = blockOffset;
// this.relocator = relocator;
this.blockNo = HexFormatter.intValue (fullBuffer[seq * 4], fullBuffer[seq * 4 + 1]);
this.size = HexFormatter.intValue (fullBuffer[seq * 4 + 2], fullBuffer[seq * 4 + 3]);
segKind = HexFormatter.intValue (fullBuffer[0xC0 + seq * 2],
fullBuffer[0xC0 + seq * 2 + 1]);
textAddress = HexFormatter.intValue (fullBuffer[0xE0 + seq * 2],
fullBuffer[0xE0 + seq * 2 + 1]);
// segment 1 is the main segment, 2-6 are used by the system, and 7
// onwards is for the program
this.segmentNoHeader = fullBuffer[0x100 + seq * 2] & 0xFF;
int flags = fullBuffer[0x101 + seq * 2] & 0xFF;
// 0 unknown,
// 1 positive byte sex p-code
// 2 negative byte sex p-code (apple pascal)
// 3-9 6502 code (7 = apple 6502)
machineType = flags & 0x0F;
version = (flags & 0xD0) >> 5;
intrinsSegs1 = HexFormatter.intValue (fullBuffer[0x120 + seq * 4],
fullBuffer[0x120 + seq * 4 + 1]);
intrinsSegs2 = HexFormatter.intValue (fullBuffer[0x120 + seq * 4 + 2],
fullBuffer[0x120 + seq * 4 + 3]);
int offset = blockNo * 512;
// if (relocator != null)
// {
// // if (segmentNoHeader > 1)
// // {
// int sizeInBlocks = (size - 1) / BLOCK_SIZE + 1;
// int targetBlock = blockNo + blockOffset;
// addresses = relocator.getMultiDiskAddress (name, targetBlock, sizeInBlocks);
// if (addresses.size () > 0)
// {
// MultiDiskAddress multiDiskAddress = addresses.get (0);
// if (multiDiskAddress.diskNumber == 1)
// offset = (multiDiskAddress.physicalBlockNumber - blockOffset) * BLOCK_SIZE;
// else
// offset = -1;
// }
// // }
// }
if (offset < 0)
{
buffer = new byte[0];
}
else if ((offset + size) < fullBuffer.length)
{
buffer = new byte[size]; // replaces this.buffer with the segment buffer only
System.arraycopy (fullBuffer, offset, buffer, 0, size);
totalProcedures = buffer[size - 1] & 0xFF;
segmentNoBody = buffer[size - 2] & 0xFF;
if (debug)
if (segmentNoHeader == 0)
System.out.printf ("Zero segment header in %s seq %d%n", name, seq);
else if (segmentNoBody != segmentNoHeader)
System.out.println (
"Segment number mismatch : " + segmentNoBody + " / " + segmentNoHeader);
}
else
{
throw new FileFormatException ("Error in PascalSegment");
}
}
// void setMultiDiskAddresses (List<MultiDiskAddress> addresses)
// {
// this.addresses = addresses;
// }
// ---------------------------------------------------------------------------------//
private void buildProcedureList ()
// ---------------------------------------------------------------------------------//
{
procedures = new ArrayList<> (totalProcedures);
for (int i = 1; i <= totalProcedures; i++)
procedures.add (new PascalProcedure (buffer, i));
}
// ---------------------------------------------------------------------------------//
public String toText ()
// ---------------------------------------------------------------------------------//
{
int sizeInBlocks = (size - 1) / BLOCK_SIZE + 1;
return String.format (
" %2d %02X %02X %04X %-8s %-15s%3d " + "%02X %d %d %d %d %s",
slot, blockNo, sizeInBlocks, size, name, SegmentKind[segKind], textAddress,
segmentNoHeader, machineType, version, intrinsSegs1, intrinsSegs2,
getMultiDiskAddresses ());
}
// ---------------------------------------------------------------------------------//
@Override
public String getText ()
// ---------------------------------------------------------------------------------//
{
if (procedures == null)
buildProcedureList ();
StringBuilder text = new StringBuilder ();
String title = "Segment - " + name;
text.append (title + "\n"
+ "===============================".substring (0, title.length ()) + "\n\n");
String warning = segmentNoBody == segmentNoHeader ? ""
: String.format (" (%02X in routine)", segmentNoBody);
text.append (String.format ("Address........ %02X%n", blockNo));
// if (addresses != null)
text.append (String.format ("Multi disk .... %s%n", getMultiDiskAddresses ()));
text.append (String.format ("Length......... %04X%n", buffer.length));
text.append (String.format ("Machine type... %d%n", machineType));
text.append (String.format ("Version........ %d%n", version));
text.append (String.format ("Segment........ %02X%s%n", segmentNoHeader, warning));
text.append (String.format ("Total procs.... %d%n", procedures.size ()));
text.append ("\nProcedure Dictionary\n====================\n\n");
int len = procedures.size () * 2 + 2;
if (false)
text.append (HexFormatter.format (buffer, buffer.length - len, len) + "\n\n");
text.append ("Proc Offset Lvl Entry Exit Parm Data Proc header\n");
text.append (
"---- ------ --- ----- ---- ---- ---- --------------------\n");
for (PascalProcedure procedure : procedures)
{
if (procedure.valid)
{
int address = size - procedure.slot * 2 - 2;
text.append (String.format (
" %3d %04X %3d %04X %04X %04X %04X (%04X - %04X = %04X)%n",
procedure.procedureNo, procedure.offset, procedure.procLevel,
procedure.codeStart, procedure.codeEnd, procedure.parmSize,
procedure.dataSize, address, procedure.offset, procedure.procOffset));
}
else
text.append (String.format (" %3d %04X%n", procedure.slot, procedure.offset));
}
text.append ("\nStrings\n=======\n");
for (PascalProcedure pp : procedures)
{
List<PascalCodeStatement> strings = pp.extractStrings ();
for (PascalCodeStatement cs : strings)
text.append (
String.format (" %2d %04X %s%n", pp.procedureNo, cs.ptr, cs.text));
}
for (PascalProcedure procedure : procedures)
if (procedure.valid)
text.append (procedure);
return text.toString ();
}
// ---------------------------------------------------------------------------------//
private String getMultiDiskAddresses ()
// ---------------------------------------------------------------------------------//
{
String multiDiskAddressText = "";
// int sizeInBlocks = (size - 1) / BLOCK_SIZE + 1;
// if (segmentNoHeader == 1) // main segment
// {
// multiDiskAddressText = String.format ("1:%03X", (blockNo + blockOffset));
// }
// else
// if (relocator != null)
// {
// int targetBlock = blockNo + blockOffset;
// List<MultiDiskAddress> addresses =
// relocator.getMultiDiskAddress (name, targetBlock, sizeInBlocks);
// if (addresses.isEmpty ())
// multiDiskAddressText = ".";
// else
// {
// StringBuilder locations = new StringBuilder ();
// for (MultiDiskAddress multiDiskAddress : addresses)
// locations.append (multiDiskAddress.toString () + ", ");
// if (locations.length () > 2)
// {
// locations.deleteCharAt (locations.length () - 1);
// locations.deleteCharAt (locations.length () - 1);
// }
// multiDiskAddressText = locations.toString ();
// }
// }
return multiDiskAddressText;
}
}

114
src/com/bytezone/diskbrowser/applefile/PascalText.java
View File

@ -1,53 +1,63 @@
package com.bytezone.diskbrowser.applefile;
public class PascalText extends AbstractFile
{
public PascalText (String name, byte[] buffer)
{
super (name, buffer);
}
@Override
public String getText ()
{
StringBuilder text = new StringBuilder (getHeader ());
int ptr = 0x400;
while (ptr < buffer.length)
{
if (buffer[ptr] == 0x00)
{
++ptr;
continue;
}
if (buffer[ptr] == 0x10)
{
int tab = buffer[ptr + 1] - 0x20;
while (tab-- > 0)
text.append (" ");
ptr += 2;
}
String line = getLine (ptr);
text.append (line + "\n");
ptr += line.length () + 1;
}
if (text.length () > 0)
text.deleteCharAt (text.length () - 1);
return text.toString ();
}
private String getHeader ()
{
return "Name : " + name + "\n\n";
}
private String getLine (int ptr)
{
StringBuilder line = new StringBuilder ();
while (buffer[ptr] != 0x0D)
line.append ((char) buffer[ptr++]);
return line.toString ();
}
package com.bytezone.diskbrowser.applefile;
// -----------------------------------------------------------------------------------//
public class PascalText extends AbstractFile
// -----------------------------------------------------------------------------------//
{
// ---------------------------------------------------------------------------------//
public PascalText (String name, byte[] buffer)
// ---------------------------------------------------------------------------------//
{
super (name, buffer);
}
// ---------------------------------------------------------------------------------//
@Override
public String getText ()
// ---------------------------------------------------------------------------------//
{
StringBuilder text = new StringBuilder (getHeader ());
int ptr = 0x400;
while (ptr < buffer.length)
{
if (buffer[ptr] == 0x00)
{
++ptr;
continue;
}
if (buffer[ptr] == 0x10)
{
int tab = buffer[ptr + 1] - 0x20;
while (tab-- > 0)
text.append (" ");
ptr += 2;
}
String line = getLine (ptr);
text.append (line + "\n");
ptr += line.length () + 1;
}
if (text.length () > 0)
text.deleteCharAt (text.length () - 1);
return text.toString ();
}
// ---------------------------------------------------------------------------------//
private String getHeader ()
// ---------------------------------------------------------------------------------//
{
return "Name : " + name + "\n\n";
}
// ---------------------------------------------------------------------------------//
private String getLine (int ptr)
// ---------------------------------------------------------------------------------//
{
StringBuilder line = new StringBuilder ();
while (buffer[ptr] != 0x0D)
line.append ((char) buffer[ptr++]);
return line.toString ();
}
}

6
src/com/bytezone/diskbrowser/applefile/PrintShopGraphic.java
View File

@ -5,9 +5,13 @@ import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.awt.image.DataBuffer;
// -----------------------------------------------------------------------------------//
public class PrintShopGraphic extends AbstractFile
// -----------------------------------------------------------------------------------//
{
// ---------------------------------------------------------------------------------//
public PrintShopGraphic (String name, byte[] buffer)
// ---------------------------------------------------------------------------------//
{
super (name, buffer);
@ -27,8 +31,10 @@ public class PrintShopGraphic extends AbstractFile
g2d.dispose ();
}
// ---------------------------------------------------------------------------------//
@Override
public String getText ()
// ---------------------------------------------------------------------------------//
{
StringBuilder text = new StringBuilder ();

6
src/com/bytezone/diskbrowser/applefile/SegmentDictionary.java
View File

@ -1,15 +1,21 @@
package com.bytezone.diskbrowser.applefile;
// -----------------------------------------------------------------------------------//
public class SegmentDictionary
// -----------------------------------------------------------------------------------//
{
private final boolean isValid;
// ---------------------------------------------------------------------------------//
public SegmentDictionary (String name, byte[] buffer)
// ---------------------------------------------------------------------------------//
{
isValid = !name.equals ("SYSTEM.INTERP"); // temporary
}
// ---------------------------------------------------------------------------------//
public boolean isValid ()
// ---------------------------------------------------------------------------------//
{
return isValid;
}

700
src/com/bytezone/diskbrowser/applefile/ShapeTable.java
View File

@ -1,346 +1,356 @@
package com.bytezone.diskbrowser.applefile;
import java.awt.AlphaComposite;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.awt.image.DataBuffer;
import java.util.ArrayList;
import java.util.List;
import com.bytezone.diskbrowser.utilities.HexFormatter;
/*-
* Offset Meaning
* 0 # of shapes
* 1 unused
* 2-3 offset to shape #1 (S1)
* 3-4 offset to shape #2 (S2)
* S1-S1+1 shape definition #1
* S1+n last byte = 0
* S2-S2+1 shape definition #1
* S2+n last byte = 0
*/
public class ShapeTable extends AbstractFile
{
private final List<Shape> shapes = new ArrayList<> ();
private static final int SIZE = 400;
int maxWidth = 0;
int maxHeight = 0;
public ShapeTable (String name, byte[] buffer)
{
super (name, buffer);
int minRow = 200;
int minCol = 200;
int maxRow = 200;
int maxCol = 200;
int totalShapes = buffer[0] & 0xFF;
for (int i = 0; i < totalShapes; i++)
{
Shape shape = new Shape (buffer, i);
if (!shape.valid)
continue; // shape table should be abandoned
shapes.add (shape);
minRow = Math.min (minRow, shape.minRow);
minCol = Math.min (minCol, shape.minCol);
maxRow = Math.max (maxRow, shape.maxRow);
maxCol = Math.max (maxCol, shape.maxCol);
}
maxHeight = maxRow - minRow + 1;
maxWidth = maxCol - minCol + 1;
for (Shape shape : shapes)
shape.convertGrid (minRow, minCol, maxHeight, maxWidth);
int cols = (int) Math.sqrt (shapes.size ());
int rows = (shapes.size () - 1) / cols + 1;
image = new BufferedImage ((cols + 1) * (maxWidth + 5), (rows + 1) * (maxHeight + 5),
BufferedImage.TYPE_BYTE_GRAY);
int x = 10;
int y = 10;
int count = 0;
Graphics2D g2d = image.createGraphics ();
g2d.setComposite (AlphaComposite.getInstance (AlphaComposite.SRC_OVER, (float) 1.0));
for (Shape shape : shapes)
{
g2d.drawImage (shape.image, x, y, null);
x += maxWidth + 5;
if (++count % cols == 0)
{
x = 10;
y += maxHeight + 5;
}
}
g2d.dispose ();
}
@Override
public String getText ()
{
StringBuilder text = new StringBuilder ();
text.append (String.format ("File Name : %s%n", name));
text.append (String.format ("File size : %,d%n", buffer.length));
text.append (String.format ("Total shapes : %d%n", shapes.size ()));
text.append (String.format ("Max dimensions : %d x %d%n%n", maxWidth, maxHeight));
for (Shape shape : shapes)
{
shape.drawText (text);
text.append ("\n");
}
return text.toString ();
}
public static boolean isShapeTable (byte[] buffer)
{
if (buffer.length == 0)
return false;
int totalShapes = buffer[0] & 0xFF;
if (totalShapes == 0)
return false;
// this flags large files that start with a very small value
// System.out.printf ("Average shape length: %d%n", buffer.length / totalShapes);
if (totalShapes * 500 < buffer.length)
return false;
for (int i = 0; i < totalShapes; i++)
{
// check index table entry is inside the file
int ptr = i * 2 + 2;
if (ptr >= buffer.length - 1)
return false;
// check index points inside the file
int offset = HexFormatter.unsignedShort (buffer, ptr);
if (offset == 0 || offset >= buffer.length)
return false;
// check if previous shape ended with zero
// if (i > 0 && buffer[offset - 1] > 0)
// return false;
}
return true;
}
class Shape
{
private final byte[] buffer;
private final int index;
int offset;
int actualLength;
int minRow, maxRow;
int minCol, maxCol;
int startRow = SIZE / 2;
int startCol = SIZE / 2;
int[][] grid = new int[SIZE][SIZE];
int[][] displayGrid;
boolean valid;
private BufferedImage image;
public Shape (byte[] buffer, int index)
{
this.index = index;
this.buffer = buffer;
int row = startRow;
int col = startCol;
offset = HexFormatter.unsignedShort (buffer, index * 2 + 2);
int ptr = offset;
while (ptr < buffer.length)
{
int value = buffer[ptr++] & 0xFF;
if (value == 0)
break;
// P = plot
// DD = direction to move
int v1 = value >>> 6; // DD......
int v2 = (value & 0x38) >>> 3; // ..PDD...
int v3 = value & 0x07; // .....PDD
// rightmost 3 bits
if (v3 >= 4)
if (!plot (grid, row, col))
return;
if (v3 == 0 || v3 == 4)
row--;
else if (v3 == 1 || v3 == 5)
col++;
else if (v3 == 2 || v3 == 6)
row++;
else
col--;
// middle 3 bits
if (v2 >= 4)
if (!plot (grid, row, col))
return;
// cannot move up without plotting if v1 is zero
if ((v2 == 0 && v1 != 0) || v2 == 4)
row--;
else if (v2 == 1 || v2 == 5)
col++;
else if (v2 == 2 || v2 == 6)
row++;
else if (v2 == 3 || v2 == 7)
col--;
// leftmost 2 bits (cannot plot or move up)
if (v1 == 1)
col++;
else if (v1 == 2)
row++;
else if (v1 == 3)
col--;
}
actualLength = ptr - offset;
// endRow = row;
// endCol = col;
// find min and max rows with pixels
minRow = startRow;
maxRow = startRow;
// minRow = Math.min (minRow, endRow);
// maxRow = Math.max (maxRow, endRow);
for (row = 1; row < grid.length; row++)
{
if (grid[row][0] > 0)
{
minRow = Math.min (minRow, row);
maxRow = Math.max (maxRow, row);
}
}
// find min and max columns with pixels
minCol = startCol;
maxCol = startCol;
// minCol = Math.min (minCol, endCol);
// maxCol = Math.max (maxCol, endCol);
for (col = 1; col < grid[0].length; col++)
{
if (grid[0][col] > 0)
{
minCol = Math.min (minCol, col);
maxCol = Math.max (maxCol, col);
}
}
valid = true;
}
void convertGrid (int offsetRows, int offsetColumns, int rows, int columns)
{
// System.out.printf ("Converting shape # %d%n", index);
// System.out.printf ("offsetRows %d offsetCols %d%n", offsetRows,
// offsetColumns);
// System.out.printf ("rows %d cols %d%n", rows, columns);
displayGrid = new int[rows][columns];
for (int row = 0; row < rows; row++)
for (int col = 0; col < columns; col++)
displayGrid[row][col] = grid[offsetRows + row][offsetColumns + col];
grid = null;
// draw the image
image = new BufferedImage (columns, rows, BufferedImage.TYPE_BYTE_GRAY);
DataBuffer dataBuffer = image.getRaster ().getDataBuffer ();
int element = 0;
for (int row = 0; row < rows; row++)
for (int col = 0; col < columns; col++)
dataBuffer.setElem (element++, displayGrid[row][col] == 0 ? 0 : 255);
startRow -= offsetRows;
startCol -= offsetColumns;
// endRow -= offsetRows;
// endCol -= offsetColumns;
}
private boolean plot (int[][] grid, int row, int col)
{
if (row < 0 || row >= SIZE || col < 0 || col >= SIZE)
{
System.out.printf ("Shape table out of range: %d, %d%n", row, col);
return false;
}
grid[row][col] = 1; // plot
grid[0][col]++; // increment total column dots
grid[row][0]++; // increment total row dots
return true;
}
public void drawText (StringBuilder text)
{
text.append (String.format ("Shape : %d%n", index));
text.append (String.format ("Size : %d%n", actualLength));
// text.append (String.format ("Width : %d%n", width));
// text.append (String.format ("Height : %d%n", height));
// append the shape's data
String bytes = HexFormatter.getHexString (buffer, offset, actualLength);
int ptr = offset;
for (String s : split (bytes))
{
text.append (String.format (" %04X : %s%n", ptr, s));
ptr += 16;
}
text.append ("\n");
for (int row = 0; row < displayGrid.length; row++)
{
for (int col = 0; col < displayGrid[0].length; col++)
if (col == startCol && row == startRow)
text.append (displayGrid[row][col] > 0 ? " @" : " .");
// else if (col == endCol && row == endRow)
// text.append (displayGrid[row][col] > 0 ? " #" : " .");
else if (displayGrid[row][col] == 0)
text.append (" ");
else
text.append (" X");
text.append ("\n");
}
text.append ("\n");
}
private List<String> split (String line)
{
List<String> list = new ArrayList<> ();
while (line.length () > 48)
{
list.add (line.substring (0, 47));
line = line.substring (48);
}
list.add (line);
return list;
}
@Override
public String toString ()
{
return String.format ("%3d %3d %3d %3d %3d", index, minRow, maxRow, minCol,
maxCol);
}
}
package com.bytezone.diskbrowser.applefile;
import java.awt.AlphaComposite;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.awt.image.DataBuffer;
import java.util.ArrayList;
import java.util.List;
import com.bytezone.diskbrowser.utilities.HexFormatter;
/*-
* Offset Meaning
* 0 # of shapes
* 1 unused
* 2-3 offset to shape #1 (S1)
* 3-4 offset to shape #2 (S2)
* S1-S1+1 shape definition #1
* S1+n last byte = 0
* S2-S2+1 shape definition #1
* S2+n last byte = 0
*/
// -----------------------------------------------------------------------------------//
public class ShapeTable extends AbstractFile
// -----------------------------------------------------------------------------------//
{
private final List<Shape> shapes = new ArrayList<> ();
private static final int SIZE = 400;
int maxWidth = 0;
int maxHeight = 0;
// ---------------------------------------------------------------------------------//
public ShapeTable (String name, byte[] buffer)
// ---------------------------------------------------------------------------------//
{
super (name, buffer);
int minRow = 200;
int minCol = 200;
int maxRow = 200;
int maxCol = 200;
int totalShapes = buffer[0] & 0xFF;
for (int i = 0; i < totalShapes; i++)
{
Shape shape = new Shape (buffer, i);
if (!shape.valid)
continue; // shape table should be abandoned
shapes.add (shape);
minRow = Math.min (minRow, shape.minRow);
minCol = Math.min (minCol, shape.minCol);
maxRow = Math.max (maxRow, shape.maxRow);
maxCol = Math.max (maxCol, shape.maxCol);
}
maxHeight = maxRow - minRow + 1;
maxWidth = maxCol - minCol + 1;
for (Shape shape : shapes)
shape.convertGrid (minRow, minCol, maxHeight, maxWidth);
int cols = (int) Math.sqrt (shapes.size ());
int rows = (shapes.size () - 1) / cols + 1;
image = new BufferedImage ((cols + 1) * (maxWidth + 5), (rows + 1) * (maxHeight + 5),
BufferedImage.TYPE_BYTE_GRAY);
int x = 10;
int y = 10;
int count = 0;
Graphics2D g2d = image.createGraphics ();
g2d.setComposite (AlphaComposite.getInstance (AlphaComposite.SRC_OVER, (float) 1.0));
for (Shape shape : shapes)
{
g2d.drawImage (shape.image, x, y, null);
x += maxWidth + 5;
if (++count % cols == 0)
{
x = 10;
y += maxHeight + 5;
}
}
g2d.dispose ();
}
// ---------------------------------------------------------------------------------//
@Override
public String getText ()
// ---------------------------------------------------------------------------------//
{
StringBuilder text = new StringBuilder ();
text.append (String.format ("File Name : %s%n", name));
text.append (String.format ("File size : %,d%n", buffer.length));
text.append (String.format ("Total shapes : %d%n", shapes.size ()));
text.append (String.format ("Max dimensions : %d x %d%n%n", maxWidth, maxHeight));
for (Shape shape : shapes)
{
shape.drawText (text);
text.append ("\n");
}
return text.toString ();
}
// ---------------------------------------------------------------------------------//
public static boolean isShapeTable (byte[] buffer)
// ---------------------------------------------------------------------------------//
{
if (buffer.length == 0)
return false;
int totalShapes = buffer[0] & 0xFF;
if (totalShapes == 0)
return false;
// this flags large files that start with a very small value
// System.out.printf ("Average shape length: %d%n", buffer.length / totalShapes);
if (totalShapes * 500 < buffer.length)
return false;
for (int i = 0; i < totalShapes; i++)
{
// check index table entry is inside the file
int ptr = i * 2 + 2;
if (ptr >= buffer.length - 1)
return false;
// check index points inside the file
int offset = HexFormatter.unsignedShort (buffer, ptr);
if (offset == 0 || offset >= buffer.length)
return false;
// check if previous shape ended with zero
// if (i > 0 && buffer[offset - 1] > 0)
// return false;
}
return true;
}
// ---------------------------------------------------------------------------------//
class Shape
// ---------------------------------------------------------------------------------//
{
private final byte[] buffer;
private final int index;
int offset;
int actualLength;
int minRow, maxRow;
int minCol, maxCol;
int startRow = SIZE / 2;
int startCol = SIZE / 2;
int[][] grid = new int[SIZE][SIZE];
int[][] displayGrid;
boolean valid;
private BufferedImage image;
public Shape (byte[] buffer, int index)
{
this.index = index;
this.buffer = buffer;
int row = startRow;
int col = startCol;
offset = HexFormatter.unsignedShort (buffer, index * 2 + 2);
int ptr = offset;
while (ptr < buffer.length)
{
int value = buffer[ptr++] & 0xFF;
if (value == 0)
break;
// P = plot
// DD = direction to move
int v1 = value >>> 6; // DD......
int v2 = (value & 0x38) >>> 3; // ..PDD...
int v3 = value & 0x07; // .....PDD
// rightmost 3 bits
if (v3 >= 4)
if (!plot (grid, row, col))
return;
if (v3 == 0 || v3 == 4)
row--;
else if (v3 == 1 || v3 == 5)
col++;
else if (v3 == 2 || v3 == 6)
row++;
else
col--;
// middle 3 bits
if (v2 >= 4)
if (!plot (grid, row, col))
return;
// cannot move up without plotting if v1 is zero
if ((v2 == 0 && v1 != 0) || v2 == 4)
row--;
else if (v2 == 1 || v2 == 5)
col++;
else if (v2 == 2 || v2 == 6)
row++;
else if (v2 == 3 || v2 == 7)
col--;
// leftmost 2 bits (cannot plot or move up)
if (v1 == 1)
col++;
else if (v1 == 2)
row++;
else if (v1 == 3)
col--;
}
actualLength = ptr - offset;
// endRow = row;
// endCol = col;
// find min and max rows with pixels
minRow = startRow;
maxRow = startRow;
// minRow = Math.min (minRow, endRow);
// maxRow = Math.max (maxRow, endRow);
for (row = 1; row < grid.length; row++)
{
if (grid[row][0] > 0)
{
minRow = Math.min (minRow, row);
maxRow = Math.max (maxRow, row);
}
}
// find min and max columns with pixels
minCol = startCol;
maxCol = startCol;
// minCol = Math.min (minCol, endCol);
// maxCol = Math.max (maxCol, endCol);
for (col = 1; col < grid[0].length; col++)
{
if (grid[0][col] > 0)
{
minCol = Math.min (minCol, col);
maxCol = Math.max (maxCol, col);
}
}
valid = true;
}
void convertGrid (int offsetRows, int offsetColumns, int rows, int columns)
{
// System.out.printf ("Converting shape # %d%n", index);
// System.out.printf ("offsetRows %d offsetCols %d%n", offsetRows,
// offsetColumns);
// System.out.printf ("rows %d cols %d%n", rows, columns);
displayGrid = new int[rows][columns];
for (int row = 0; row < rows; row++)
for (int col = 0; col < columns; col++)
displayGrid[row][col] = grid[offsetRows + row][offsetColumns + col];
grid = null;
// draw the image
image = new BufferedImage (columns, rows, BufferedImage.TYPE_BYTE_GRAY);
DataBuffer dataBuffer = image.getRaster ().getDataBuffer ();
int element = 0;
for (int row = 0; row < rows; row++)
for (int col = 0; col < columns; col++)
dataBuffer.setElem (element++, displayGrid[row][col] == 0 ? 0 : 255);
startRow -= offsetRows;
startCol -= offsetColumns;
// endRow -= offsetRows;
// endCol -= offsetColumns;
}
private boolean plot (int[][] grid, int row, int col)
{
if (row < 0 || row >= SIZE || col < 0 || col >= SIZE)
{
System.out.printf ("Shape table out of range: %d, %d%n", row, col);
return false;
}
grid[row][col] = 1; // plot
grid[0][col]++; // increment total column dots
grid[row][0]++; // increment total row dots
return true;
}
public void drawText (StringBuilder text)
{
text.append (String.format ("Shape : %d%n", index));
text.append (String.format ("Size : %d%n", actualLength));
// text.append (String.format ("Width : %d%n", width));
// text.append (String.format ("Height : %d%n", height));
// append the shape's data
String bytes = HexFormatter.getHexString (buffer, offset, actualLength);
int ptr = offset;
for (String s : split (bytes))
{
text.append (String.format (" %04X : %s%n", ptr, s));
ptr += 16;
}
text.append ("\n");
for (int row = 0; row < displayGrid.length; row++)
{
for (int col = 0; col < displayGrid[0].length; col++)
if (col == startCol && row == startRow)
text.append (displayGrid[row][col] > 0 ? " @" : " .");
// else if (col == endCol && row == endRow)
// text.append (displayGrid[row][col] > 0 ? " #" : " .");
else if (displayGrid[row][col] == 0)
text.append (" ");
else
text.append (" X");
text.append ("\n");
}
text.append ("\n");
}
private List<String> split (String line)
{
List<String> list = new ArrayList<> ();
while (line.length () > 48)
{
list.add (line.substring (0, 47));
line = line.substring (48);
}
list.add (line);
return list;
}
@Override
public String toString ()
{
return String.format ("%3d %3d %3d %3d %3d", index, minRow, maxRow, minCol,
maxCol);
}
}
}