Apple-2-Tools/dmolony-DiskBrowser
1
0
Fork 0
mirror of https://github.com/dmolony/DiskBrowser.git synced 2025-03-02 23:30:44 +00:00
Code Issues Projects Releases Wiki Activity

fixed REM alignment issue

Browse Source
This commit is contained in:
Denis Molony 2021-02-22 09:24:34 +10:00
parent a8030c469c
commit 5507271a74
3 changed files with 75 additions and 64 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

106
src/com/bytezone/diskbrowser/applefile/ApplesoftBasicProgram.java
View File

@ -62,21 +62,13 @@ public class ApplesoftBasicProgram extends BasicProgram implements ApplesoftCons
super (name, buffer);
int ptr = 0;
int currentAddress = 0;
int max = buffer.length - 6; // need at least 6 bytes to make a SourceLine
while (ptr <= max)
while (buffer[ptr + 1] != 0) // msb of link field
{
int nextAddress = unsignedShort (buffer, ptr);
if (nextAddress <= currentAddress) // usually zero when finished
break;
SourceLine line = new SourceLine (this, buffer, ptr);
sourceLines.add (line);
checkXref (line);
ptr += line.length; // assumes lines are contiguous
currentAddress = nextAddress;
ptr += line.length; // assumes lines are contiguous
}
endPtr = ptr;
@ -127,56 +119,59 @@ public class ApplesoftBasicProgram extends BasicProgram implements ApplesoftCons
{
int loadAddress = getLoadAddress ();
int ptr = 0;
int nextLine;
int linkField;
byte b;
StringBuilder text = new StringBuilder ();
StringBuilder currentLine = new StringBuilder ();
while ((nextLine = unsignedShort (buffer, ptr)) != 0)
while ((linkField = unsignedShort (buffer, ptr)) != 0)
{
int lineNumber = unsignedShort (buffer, ptr + 2);
text.append (String.format (" %d ", lineNumber));
currentLine.append (String.format (" %d ", lineNumber));
ptr += 4;
while ((b = buffer[ptr++]) != 0)
if (isHighBitSet (b))
text.append (String.format (" %s ", ApplesoftConstants.tokens[b & 0x7F]));
currentLine
.append (String.format (" %s ", ApplesoftConstants.tokens[b & 0x7F]));
else
switch (b)
{
case Utility.ASCII_CR:
text.append (NEWLINE);
currentLine.append (NEWLINE);
break;
case Utility.ASCII_BACKSPACE:
if (text.length () > 0)
text.deleteCharAt (text.length () - 1);
if (currentLine.length () > 0)
currentLine.deleteCharAt (currentLine.length () - 1);
break;
case Utility.ASCII_LF:
int indent = getIndent (text);
text.append ("\n");
int indent = getIndent (currentLine);
currentLine.append ("\n");
for (int i = 0; i < indent; i++)
text.append (" ");
currentLine.append (" ");
break;
default:
text.append ((char) b);
currentLine.append ((char) b);
}
if (ptr != (nextLine - loadAddress))
if (ptr != (linkField - loadAddress))
{
System.out.printf ("ptr: %04X, nextLine: %04X%n", ptr, nextLine - loadAddress);
// ptr = nextLine - loadAddress;
System.out.printf ("%s: ptr: %04X, nextLine: %04X%n", name, ptr + loadAddress,
linkField);
// ptr = linkField - loadAddress; // use this one day
}
text.append (NEWLINE);
currentLine.append (NEWLINE);
// List<String> lines = wrap (text, 29);
// fullText.append (String.format ("%d %s%n", lineNumber, lines.get (0)));
// for (int i = 1; i < lines.size (); i++)
// fullText.append (String.format (" %s%n", lines.get (i)));
fullText.append (text);
text.setLength (0);
fullText.append (currentLine);
currentLine.setLength (0);
}
}
@ -329,8 +324,8 @@ public class ApplesoftBasicProgram extends BasicProgram implements ApplesoftCons
int ptr = endPtr + 2;
if (ptr < buffer.length - 1) // sometimes there's an extra byte on the end
{
int offset = unsignedShort (buffer, 0);
int programLoadAddress = offset - getLineLength (0);
int linkField = unsignedShort (buffer, 0);
int programLoadAddress = linkField - getLineLength (0);
fullText.append ("\nExtra data:\n\n");
fullText.append (HexFormatter.formatNoHeader (buffer, ptr, buffer.length - ptr,
programLoadAddress + ptr));
@ -786,8 +781,8 @@ public class ApplesoftBasicProgram extends BasicProgram implements ApplesoftCons
private String getDebugText (StringBuilder text)
// ---------------------------------------------------------------------------------//
{
int offset = unsignedShort (buffer, 0);
int programLoadAddress = offset - getLineLength (0);
int linkField = unsignedShort (buffer, 0);
int programLoadAddress = linkField - getLineLength (0);
for (SourceLine sourceLine : sourceLines)
{
@ -815,7 +810,7 @@ public class ApplesoftBasicProgram extends BasicProgram implements ApplesoftCons
int length = buffer.length - endPtr;
int ptr = endPtr;
if (length > 2)
if (length >= 2)
{
text.append (" ");
text.append (
@ -825,19 +820,22 @@ public class ApplesoftBasicProgram extends BasicProgram implements ApplesoftCons
length -= 2;
}
// show the extra bytes as a hex dump
String formattedHex = HexFormatter.formatNoHeader (buffer, ptr, buffer.length - ptr,
programLoadAddress + ptr);
for (String bytes : formattedHex.split (NEWLINE))
text.append (String.format (" %s%n", bytes));
if (length > 0)
{
// show the extra bytes as a hex dump
String formattedHex = HexFormatter.formatNoHeader (buffer, ptr,
buffer.length - ptr, programLoadAddress + ptr);
for (String bytes : formattedHex.split (NEWLINE))
text.append (String.format (" %s%n", bytes));
// show the extra bytes as a disassembly
byte[] extraBuffer = new byte[length];
System.arraycopy (buffer, ptr, extraBuffer, 0, extraBuffer.length);
AssemblerProgram assemblerProgram =
new AssemblerProgram ("extra", extraBuffer, programLoadAddress + ptr);
text.append ("\n");
text.append (assemblerProgram.getText ());
// show the extra bytes as a disassembly
byte[] extraBuffer = new byte[length];
System.arraycopy (buffer, ptr, extraBuffer, 0, extraBuffer.length);
AssemblerProgram assemblerProgram =
new AssemblerProgram ("extra", extraBuffer, programLoadAddress + ptr);
text.append ("\n");
text.append (assemblerProgram.getText ());
}
}
return Utility.rtrim (text);
@ -878,29 +876,25 @@ public class ApplesoftBasicProgram extends BasicProgram implements ApplesoftCons
int getLoadAddress ()
// ---------------------------------------------------------------------------------//
{
int programLoadAddress = 0;
if (buffer.length > 1)
{
int offset = unsignedShort (buffer, 0);
programLoadAddress = offset - getLineLength (0);
}
return programLoadAddress;
return (buffer.length > 1) ? unsignedShort (buffer, 0) - getLineLength (0) : 0;
}
// ---------------------------------------------------------------------------------//
private int getLineLength (int ptr)
// ---------------------------------------------------------------------------------//
{
int offset = unsignedShort (buffer, ptr);
if (offset == 0)
return 0;
int linkField = unsignedShort (buffer, ptr);
if (linkField == 0)
return 2;
ptr += 4; // skip offset and line number
ptr += 4; // skip link field and line number
int length = 5;
while (ptr < buffer.length && buffer[ptr++] != 0)
length++;
// System.out.printf ("Length: %4d, Ptr: %4d%n", length, ptr);
assert length == ptr;
return length;
}

4
src/com/bytezone/diskbrowser/applefile/SourceLine.java
View File

@ -12,7 +12,7 @@ public class SourceLine implements ApplesoftConstants
// -----------------------------------------------------------------------------------//
{
ApplesoftBasicProgram parent;
int addressNext;
int linkField;
int lineNumber;
int linePtr;
int length;
@ -28,7 +28,7 @@ public class SourceLine implements ApplesoftConstants
this.buffer = buffer;
linePtr = ptr;
addressNext = unsignedShort (buffer, ptr);
linkField = unsignedShort (buffer, ptr);
lineNumber = unsignedShort (buffer, ptr + 2);
int startPtr = ptr += 4; // skip link to next line and lineNumber

29
src/com/bytezone/diskbrowser/applefile/SubLine.java
View File

@ -80,8 +80,9 @@ public class SubLine implements ApplesoftConstants
else if (isEndOfLine (firstByte)) // empty subline
return;
else // probably Beagle Bros 0D or 0A
System.out.printf ("Unexpected bytes at %5d: %s%n", parent.lineNumber,
HexFormatter.formatNoHeader (buffer, startPtr, length).substring (5));
System.out.printf ("%s unexpected bytes at %5d: %s%n", parent.parent.name,
parent.lineNumber,
HexFormatter.formatNoHeader (buffer, startPtr, length).substring (7));
}
String var = "";
@ -92,7 +93,7 @@ public class SubLine implements ApplesoftConstants
int stringPtr = 0;
int max = startPtr + length - 1;
if (isEndOfLine (buffer[max]))
while (isEndOfLine (buffer[max]))
--max;
while (ptr <= max)
@ -536,11 +537,16 @@ public class SubLine implements ApplesoftConstants
int ptr = startPtr + 1;
int max = startPtr + length - 1;
// apple format uses left-justified line numbers so the length varies
if (isFirst ())
{
text.setLength (0);
text.append (String.format (" %d REM ", parent.lineNumber)); // mimic apple
if (containsBackspaces (ptr, max)) // probably going to erase the line number
{
// apple format uses left-justified line numbers so the length varies
text.setLength (0);
text.append (String.format (" %d REM ", parent.lineNumber)); // mimic apple
}
else
text.append (" REM ");
}
else
text.append ("REM ");
@ -573,6 +579,17 @@ public class SubLine implements ApplesoftConstants
}
}
// ---------------------------------------------------------------------------------//
private boolean containsBackspaces (int ptr, int max)
// ---------------------------------------------------------------------------------//
{
while (ptr < max)
if (buffer[ptr++] == Utility.ASCII_BACKSPACE)
return true;
return false;
}
// ---------------------------------------------------------------------------------//
public String getAlignedText (int alignEqualsPos)
// ---------------------------------------------------------------------------------//