mirror of
https://github.com/dmolony/DiskBrowser.git
synced 2025-01-14 07:30:01 +00:00
added header underlines
This commit is contained in:
Denis Molony
parent
147f7e03f2
commit
600c3a5ce2
@ -1,454 +1,488 @@
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package com.bytezone.diskbrowser.applefile;
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import java.io.BufferedReader;
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import java.io.DataInputStream;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import com.bytezone.diskbrowser.gui.AssemblerPreferences;
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import com.bytezone.diskbrowser.gui.DiskBrowser;
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import com.bytezone.diskbrowser.utilities.HexFormatter;
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public class AssemblerProgram extends AbstractFile
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{
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static AssemblerPreferences assemblerPreferences; // set by MenuHandler
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private static Map<Integer, String> equates;
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private final int loadAddress;
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private int executeOffset;
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private byte[] extraBuffer = new byte[0];
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private List<Integer> entryPoints;
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private List<StringLocation> stringLocations;
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public static void setAssemblerPreferences (AssemblerPreferences assemblerPreferences)
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{
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AssemblerProgram.assemblerPreferences = assemblerPreferences;
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}
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public AssemblerProgram (String name, byte[] buffer, int address)
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{
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super (name, buffer);
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this.loadAddress = address;
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if (equates == null)
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getEquates ();
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// AssemblerBlocks assemblerBlocks = new AssemblerBlocks (buffer, address);
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}
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public AssemblerProgram (String name, byte[] buffer, int address, int executeOffset)
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{
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this (name, buffer, address);
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this.executeOffset = executeOffset;
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}
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public void setExtraBuffer (byte[] fullBuffer, int offset, int length)
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{
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if (length >= 0)
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{
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this.extraBuffer = new byte[length];
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System.arraycopy (fullBuffer, offset, extraBuffer, 0, length);
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}
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else
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System.out.println ("Invalid length in setExtraBuffer() : " + length);
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}
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@Override
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public String getHexDump ()
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{
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// It might be useful to add opt-O to change the offset. Sometimes it's useful
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// to see the hex dump offset from zero, other times it's better to use the
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// load address.
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String text = HexFormatter.format (buffer, 0, buffer.length, loadAddress);
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if (extraBuffer.length == 0)
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return text;
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return text + "\n\nData outside actual buffer:\n\n" + HexFormatter
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.format (extraBuffer, 0, extraBuffer.length, loadAddress + buffer.length);
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}
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@Override
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public String getAssembler ()
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{
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if (buffer == null)
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return "No buffer";
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if (assembler == null)
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this.assembler = new AssemblerProgram (name, buffer, loadAddress);
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if (extraBuffer.length == 0)
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return assembler.getText ();
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String extraName = String.format ("%s (extra)", name);
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AssemblerProgram assemblerProgram =
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new AssemblerProgram (extraName, extraBuffer, loadAddress + buffer.length);
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return assembler.getText () + "\n\n" + assemblerProgram.getText ();
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}
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private void addHeader (StringBuilder pgm)
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{
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pgm.append (String.format ("Name : %s%n", name));
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pgm.append (String.format ("Length : $%04X (%,d)%n", buffer.length, buffer.length));
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pgm.append (String.format ("Load at : $%04X (%,d)%n", loadAddress, loadAddress));
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if (executeOffset > 0)
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pgm.append (String.format ("Entry : $%04X%n", (loadAddress + executeOffset)));
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pgm.append ("\n");
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}
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@Override
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public String getText ()
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{
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StringBuilder pgm = new StringBuilder ();
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if (assemblerPreferences.showHeader)
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addHeader (pgm);
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pgm.append (getListing ());
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if (assemblerPreferences.showStrings)
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pgm.append (getStringsText ());
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return pgm.toString ();
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}
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private String getListing ()
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{
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StringBuilder pgm = new StringBuilder ();
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List<AssemblerStatement> lines = getLines ();
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if (stringLocations == null)
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getStrings ();
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// if the assembly doesn't start at the beginning, just dump the bytes that
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// are skipped
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for (int i = 0; i < executeOffset; i++)
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pgm.append (String.format (" %04X: %02X%n", (loadAddress + i), buffer[i]));
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for (AssemblerStatement cmd : lines)
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{
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StringBuilder line = new StringBuilder ();
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String arrowText = assemblerPreferences.showTargets ? getArrow (cmd) : "";
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line.append (
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String.format ("%3.3s %04X: %02X ", arrowText, cmd.address, cmd.value));
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if (cmd.size > 1)
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line.append (String.format ("%02X ", cmd.operand1));
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if (cmd.size > 2)
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line.append (String.format ("%02X ", cmd.operand2));
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while (line.length () < 23)
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line.append (" ");
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line.append (cmd.mnemonic + " " + cmd.operand);
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if (cmd.offset != 0)
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{
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int branch = cmd.address + cmd.offset + 2;
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line.append (String.format ("$%04X", branch < 0 ? branch += 0xFFFF : branch));
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}
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else if (cmd.target > 0
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&& (cmd.target < loadAddress - 1 || cmd.target > (loadAddress + buffer.length)))
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{
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while (line.length () < 40)
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line.append (" ");
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String text = equates.get (cmd.target);
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if (text != null)
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line.append ("; " + text);
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else
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for (int i = 0, max = ApplesoftConstants.tokenAddresses.length; i < max; i++)
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if (cmd.target == ApplesoftConstants.tokenAddresses[i])
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{
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line.append ("; Applesoft - " + ApplesoftConstants.tokens[i]);
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break;
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}
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}
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pgm.append (line.toString () + "\n");
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}
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if (pgm.length () > 0)
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pgm.deleteCharAt (pgm.length () - 1);
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return pgm.toString ();
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}
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// private int showString (AssemblerStatement cmd, StringBuilder line)
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// {
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// int key = cmd.address - loadAddress;
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// if (strings.containsKey (key))
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// {
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// while (line.length () < 40)
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// line.append (" ");
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// String s = strings.get (key);
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// line.append ("# " + s);
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// return s.length () - cmd.size;
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// }
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// return 0;
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// }
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private List<AssemblerStatement> getLines ()
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{
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List<AssemblerStatement> lines = new ArrayList<> ();
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Map<Integer, AssemblerStatement> linesMap = new HashMap<> ();
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List<Integer> targets = new ArrayList<> ();
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int ptr = executeOffset;
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int address = loadAddress + executeOffset;
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while (ptr < buffer.length)
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{
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AssemblerStatement cmd = new AssemblerStatement (buffer[ptr]);
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lines.add (cmd);
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linesMap.put (address, cmd);
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cmd.address = address;
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if (cmd.size == 2 && ptr < buffer.length - 1)
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cmd.addData (buffer[ptr + 1]);
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else if (cmd.size == 3 && ptr < buffer.length - 2)
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cmd.addData (buffer[ptr + 1], buffer[ptr + 2]);
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else
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cmd.size = 1;
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// JMP, JMP, JSR
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if (cmd.target >= loadAddress && cmd.target < (loadAddress + buffer.length)
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&& (cmd.value == 0x4C || cmd.value == 0x6C || cmd.value == 0x20))
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targets.add (cmd.target);
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// branch relative
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if (cmd.offset != 0)
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targets.add (cmd.address + cmd.offset + 2);
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address += cmd.size;
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ptr += cmd.size;
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}
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for (Integer target : targets)
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{
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AssemblerStatement cmd = linesMap.get (target);
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if (cmd != null)
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cmd.isTarget = true;
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}
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return lines;
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}
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private String getStringsText ()
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{
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if (stringLocations.size () == 0)
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return "";
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StringBuilder text = new StringBuilder ("\n\nPossible strings:\n\n");
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for (StringLocation stringLocation : stringLocations)
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{
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int address = stringLocation.offset + loadAddress;
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text.append (String.format ("%s %04X - %04X %s %n",
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entryPoints.contains (stringLocation.offset) ? "*" : " ", address,
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address + stringLocation.length, stringLocation));
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}
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if (text.length () > 0)
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text.deleteCharAt (text.length () - 1);
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return text.toString ();
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}
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private void getStrings ()
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{
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entryPoints = new ArrayList<> ();
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stringLocations = new ArrayList<> ();
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int start = 0;
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for (int ptr = 0; ptr < buffer.length; ptr++)
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{
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if ((buffer[ptr] & 0x80) != 0) // hi bit set
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continue;
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if (buffer[ptr] == 0x0D) // CR
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continue;
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if (ptr - start > 3)
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stringLocations.add (new StringLocation (start, ptr - 1));
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start = ptr + 1;
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}
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if (buffer.length - start > 3)
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stringLocations.add (new StringLocation (start, buffer.length - 1));
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int max = buffer.length - 2;
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for (StringLocation stringLocation : stringLocations)
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for (int ptr = 0; ptr < max; ptr++)
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if (stringLocation.matches (buffer, ptr))
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{
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entryPoints.add (stringLocation.offset);
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break;
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}
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}
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private String getArrow (AssemblerStatement cmd)
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{
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String arrow = "";
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if (cmd.value == 0x4C || cmd.value == 0x6C || cmd.value == 0x60 || cmd.offset != 0)
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arrow = "<--";
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if (cmd.value == 0x20 && isLocal (cmd.target)) // JSR
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arrow = "<--";
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if (cmd.isTarget)
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if (arrow.isEmpty ())
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arrow = "-->";
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else
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arrow = "<->";
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return arrow;
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}
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private boolean isLocal (int target)
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{
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return target >= loadAddress
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&& target < loadAddress + buffer.length + extraBuffer.length;
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}
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private void getEquates ()
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{
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equates = new HashMap<Integer, String> ();
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DataInputStream inputEquates =
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new DataInputStream (DiskBrowser.class.getClassLoader ()
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.getResourceAsStream ("com/bytezone/diskbrowser/applefile/equates.txt"));
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BufferedReader in = new BufferedReader (new InputStreamReader (inputEquates));
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String line;
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try
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{
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while ((line = in.readLine ()) != null)
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{
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if (!line.isEmpty () && !line.startsWith ("*"))
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{
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int address = Integer.parseInt (line.substring (0, 4), 16);
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if (equates.containsKey (address))
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System.out.printf ("Duplicate equate entry : %04X%n" + address);
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else
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equates.put (address, line.substring (6));
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}
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}
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in.close ();
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}
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catch (IOException e)
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{
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e.printStackTrace ();
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}
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}
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class StringLocation
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{
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int offset;
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byte hi, lo;
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int length;
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boolean zeroTerminated;
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boolean lowTerminated;
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boolean hasLengthByte;
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int digits;
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int letters;
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int punctuation;
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int controlChars;
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int spaces;
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public StringLocation (int first, int last)
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{
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offset = first;
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length = last - offset + 1;
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int end = last + 1;
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zeroTerminated = end < buffer.length && buffer[end] == 0;
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lowTerminated = end < buffer.length && buffer[end] >= 32 && buffer[end] < 127;
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if (first > 0 && (buffer[first] & 0xFF) == length + 1)
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{
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hasLengthByte = true;
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--offset;
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++length;
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}
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hi = (byte) ((offset + loadAddress) >>> 8);
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lo = (byte) ((offset + loadAddress) & 0x00FF);
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for (int i = offset; i < offset + length; i++)
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{
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int val = buffer[i] & 0x7F;
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if (val < 32 || val == 127)
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++controlChars;
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else if (val == 32)
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++spaces;
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else if (val >= 48 && val <= 57)
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++digits;
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else if (val >= 65 && val <= 90)
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++letters;
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else if (val >= 97 && val <= 122)
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++letters;
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else
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++punctuation;
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}
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}
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boolean matches (byte[] buffer, int ptr)
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{
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return lo == buffer[ptr] && hi == buffer[ptr + 1];
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}
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boolean likelyString ()
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{
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return spaces > 0 || letters > punctuation;
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}
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public String address ()
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{
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return String.format ("%04X %02X %02X", offset, hi, lo);
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}
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public String toStatisticsString ()
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{
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return String.format ("%2d, %2d, %2d, %2d, %2d", digits, letters, punctuation,
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controlChars, spaces);
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}
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@Override
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public String toString ()
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{
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StringBuilder text = new StringBuilder ();
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if (hasLengthByte)
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text.append ("<length>");
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for (int i = offset; i < offset + length; i++)
|
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{
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int val = buffer[i] & 0x7F;
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if (val == 4)
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text.append ("<ctrl-D>");
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else if (val == 10)
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text.append ("<LF>");
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else if (val == 13)
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text.append ("<CR>");
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else
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text.append ((char) val);
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}
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if (lowTerminated)
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text.append ((char) buffer[offset + length]);
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return text.toString ();
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}
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||||
}
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package com.bytezone.diskbrowser.applefile;
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import java.io.BufferedReader;
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import java.io.DataInputStream;
|
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import java.io.IOException;
|
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import java.io.InputStreamReader;
|
||||
import java.util.ArrayList;
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import java.util.HashMap;
|
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import java.util.List;
|
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import java.util.Map;
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|
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import com.bytezone.diskbrowser.gui.AssemblerPreferences;
|
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import com.bytezone.diskbrowser.gui.DiskBrowser;
|
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import com.bytezone.diskbrowser.utilities.HexFormatter;
|
||||
|
||||
// -----------------------------------------------------------------------------------//
|
||||
public class AssemblerProgram extends AbstractFile
|
||||
// -----------------------------------------------------------------------------------//
|
||||
{
|
||||
static AssemblerPreferences assemblerPreferences; // set by MenuHandler
|
||||
|
||||
private static Map<Integer, String> equates;
|
||||
|
||||
private final int loadAddress;
|
||||
private int executeOffset;
|
||||
|
||||
private byte[] extraBuffer = new byte[0];
|
||||
|
||||
private List<Integer> entryPoints;
|
||||
private List<StringLocation> stringLocations;
|
||||
|
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// ---------------------------------------------------------------------------------//
|
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public static void setAssemblerPreferences (AssemblerPreferences assemblerPreferences)
|
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// ---------------------------------------------------------------------------------//
|
||||
{
|
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AssemblerProgram.assemblerPreferences = assemblerPreferences;
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
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public AssemblerProgram (String name, byte[] buffer, int address)
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
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super (name, buffer);
|
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this.loadAddress = address;
|
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|
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if (equates == null)
|
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getEquates ();
|
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|
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// AssemblerBlocks assemblerBlocks = new AssemblerBlocks (buffer, address);
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}
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||||
|
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// ---------------------------------------------------------------------------------//
|
||||
public AssemblerProgram (String name, byte[] buffer, int address, int executeOffset)
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
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this (name, buffer, address);
|
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this.executeOffset = executeOffset;
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
public void setExtraBuffer (byte[] fullBuffer, int offset, int length)
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
if (length >= 0)
|
||||
{
|
||||
this.extraBuffer = new byte[length];
|
||||
System.arraycopy (fullBuffer, offset, extraBuffer, 0, length);
|
||||
}
|
||||
else
|
||||
System.out.println ("Invalid length in setExtraBuffer() : " + length);
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
@Override
|
||||
public String getHexDump ()
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
// It might be useful to add opt-O to change the offset. Sometimes it's useful
|
||||
// to see the hex dump offset from zero, other times it's better to use the
|
||||
// load address.
|
||||
String text = HexFormatter.format (buffer, 0, buffer.length, loadAddress);
|
||||
|
||||
if (extraBuffer.length == 0)
|
||||
return text;
|
||||
|
||||
return text + "\n\nData outside actual buffer:\n\n" + HexFormatter
|
||||
.format (extraBuffer, 0, extraBuffer.length, loadAddress + buffer.length);
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
@Override
|
||||
public String getAssembler ()
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
if (buffer == null)
|
||||
return "No buffer";
|
||||
|
||||
if (assembler == null)
|
||||
this.assembler = new AssemblerProgram (name, buffer, loadAddress);
|
||||
|
||||
if (extraBuffer.length == 0)
|
||||
return assembler.getText ();
|
||||
|
||||
String extraName = String.format ("%s (extra)", name);
|
||||
AssemblerProgram assemblerProgram =
|
||||
new AssemblerProgram (extraName, extraBuffer, loadAddress + buffer.length);
|
||||
|
||||
return assembler.getText () + "\n\n" + assemblerProgram.getText ();
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
private void addHeader (StringBuilder pgm)
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
pgm.append (String.format ("Name : %s%n", name));
|
||||
pgm.append (String.format ("Length : $%04X (%,d)%n", buffer.length, buffer.length));
|
||||
pgm.append (String.format ("Load at : $%04X (%,d)%n", loadAddress, loadAddress));
|
||||
|
||||
if (executeOffset > 0)
|
||||
pgm.append (String.format ("Entry : $%04X%n", (loadAddress + executeOffset)));
|
||||
pgm.append ("\n");
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
@Override
|
||||
public String getText ()
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
StringBuilder pgm = new StringBuilder ();
|
||||
|
||||
if (assemblerPreferences.showHeader)
|
||||
addHeader (pgm);
|
||||
|
||||
pgm.append (getListing ());
|
||||
|
||||
if (assemblerPreferences.showStrings)
|
||||
pgm.append (getStringsText ());
|
||||
|
||||
return pgm.toString ();
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
private String getListing ()
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
StringBuilder pgm = new StringBuilder ();
|
||||
|
||||
List<AssemblerStatement> lines = getLines ();
|
||||
|
||||
if (stringLocations == null)
|
||||
getStrings ();
|
||||
|
||||
// if the assembly doesn't start at the beginning, just dump the bytes that
|
||||
// are skipped
|
||||
for (int i = 0; i < executeOffset; i++)
|
||||
pgm.append (String.format (" %04X: %02X%n", (loadAddress + i), buffer[i]));
|
||||
|
||||
for (AssemblerStatement cmd : lines)
|
||||
{
|
||||
StringBuilder line = new StringBuilder ();
|
||||
|
||||
String arrowText = assemblerPreferences.showTargets ? getArrow (cmd) : "";
|
||||
line.append (
|
||||
String.format ("%3.3s %04X: %02X ", arrowText, cmd.address, cmd.value));
|
||||
|
||||
if (cmd.size > 1)
|
||||
line.append (String.format ("%02X ", cmd.operand1));
|
||||
if (cmd.size > 2)
|
||||
line.append (String.format ("%02X ", cmd.operand2));
|
||||
|
||||
while (line.length () < 23)
|
||||
line.append (" ");
|
||||
|
||||
line.append (cmd.mnemonic + " " + cmd.operand);
|
||||
|
||||
if (cmd.offset != 0)
|
||||
{
|
||||
int branch = cmd.address + cmd.offset + 2;
|
||||
line.append (String.format ("$%04X", branch < 0 ? branch += 0xFFFF : branch));
|
||||
}
|
||||
else if (cmd.target > 0
|
||||
&& (cmd.target < loadAddress - 1 || cmd.target > (loadAddress + buffer.length)))
|
||||
{
|
||||
while (line.length () < 40)
|
||||
line.append (" ");
|
||||
|
||||
String text = equates.get (cmd.target);
|
||||
if (text != null)
|
||||
line.append ("; " + text);
|
||||
else
|
||||
for (int i = 0, max = ApplesoftConstants.tokenAddresses.length; i < max; i++)
|
||||
if (cmd.target == ApplesoftConstants.tokenAddresses[i])
|
||||
{
|
||||
line.append ("; Applesoft - " + ApplesoftConstants.tokens[i]);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
pgm.append (line.toString () + "\n");
|
||||
}
|
||||
|
||||
if (pgm.length () > 0)
|
||||
pgm.deleteCharAt (pgm.length () - 1);
|
||||
|
||||
return pgm.toString ();
|
||||
}
|
||||
|
||||
// private int showString (AssemblerStatement cmd, StringBuilder line)
|
||||
// {
|
||||
// int key = cmd.address - loadAddress;
|
||||
// if (strings.containsKey (key))
|
||||
// {
|
||||
// while (line.length () < 40)
|
||||
// line.append (" ");
|
||||
// String s = strings.get (key);
|
||||
// line.append ("# " + s);
|
||||
// return s.length () - cmd.size;
|
||||
// }
|
||||
// return 0;
|
||||
// }
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
private List<AssemblerStatement> getLines ()
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
List<AssemblerStatement> lines = new ArrayList<> ();
|
||||
Map<Integer, AssemblerStatement> linesMap = new HashMap<> ();
|
||||
List<Integer> targets = new ArrayList<> ();
|
||||
|
||||
int ptr = executeOffset;
|
||||
int address = loadAddress + executeOffset;
|
||||
|
||||
while (ptr < buffer.length)
|
||||
{
|
||||
AssemblerStatement cmd = new AssemblerStatement (buffer[ptr]);
|
||||
lines.add (cmd);
|
||||
linesMap.put (address, cmd);
|
||||
cmd.address = address;
|
||||
|
||||
if (cmd.size == 2 && ptr < buffer.length - 1)
|
||||
cmd.addData (buffer[ptr + 1]);
|
||||
else if (cmd.size == 3 && ptr < buffer.length - 2)
|
||||
cmd.addData (buffer[ptr + 1], buffer[ptr + 2]);
|
||||
else
|
||||
cmd.size = 1;
|
||||
|
||||
// JMP, JMP, JSR
|
||||
if (cmd.target >= loadAddress && cmd.target < (loadAddress + buffer.length)
|
||||
&& (cmd.value == 0x4C || cmd.value == 0x6C || cmd.value == 0x20))
|
||||
targets.add (cmd.target);
|
||||
|
||||
// branch relative
|
||||
if (cmd.offset != 0)
|
||||
targets.add (cmd.address + cmd.offset + 2);
|
||||
|
||||
address += cmd.size;
|
||||
ptr += cmd.size;
|
||||
}
|
||||
|
||||
for (Integer target : targets)
|
||||
{
|
||||
AssemblerStatement cmd = linesMap.get (target);
|
||||
if (cmd != null)
|
||||
cmd.isTarget = true;
|
||||
}
|
||||
|
||||
return lines;
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
private String getStringsText ()
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
if (stringLocations.size () == 0)
|
||||
return "";
|
||||
|
||||
StringBuilder text = new StringBuilder ("\n\nPossible strings:\n\n");
|
||||
for (StringLocation stringLocation : stringLocations)
|
||||
{
|
||||
int address = stringLocation.offset + loadAddress;
|
||||
text.append (String.format ("%s %04X - %04X %s %n",
|
||||
entryPoints.contains (stringLocation.offset) ? "*" : " ", address,
|
||||
address + stringLocation.length, stringLocation));
|
||||
}
|
||||
|
||||
if (text.length () > 0)
|
||||
text.deleteCharAt (text.length () - 1);
|
||||
|
||||
return text.toString ();
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
private void getStrings ()
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
entryPoints = new ArrayList<> ();
|
||||
stringLocations = new ArrayList<> ();
|
||||
|
||||
int start = 0;
|
||||
for (int ptr = 0; ptr < buffer.length; ptr++)
|
||||
{
|
||||
if ((buffer[ptr] & 0x80) != 0) // hi bit set
|
||||
continue;
|
||||
|
||||
if (buffer[ptr] == 0x0D) // CR
|
||||
continue;
|
||||
|
||||
if (ptr - start > 3)
|
||||
stringLocations.add (new StringLocation (start, ptr - 1));
|
||||
|
||||
start = ptr + 1;
|
||||
}
|
||||
|
||||
if (buffer.length - start > 3)
|
||||
stringLocations.add (new StringLocation (start, buffer.length - 1));
|
||||
|
||||
int max = buffer.length - 2;
|
||||
for (StringLocation stringLocation : stringLocations)
|
||||
for (int ptr = 0; ptr < max; ptr++)
|
||||
if (stringLocation.matches (buffer, ptr))
|
||||
{
|
||||
entryPoints.add (stringLocation.offset);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
private String getArrow (AssemblerStatement cmd)
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
String arrow = "";
|
||||
|
||||
if (cmd.value == 0x4C || cmd.value == 0x6C || cmd.value == 0x60 || cmd.offset != 0)
|
||||
arrow = "<--";
|
||||
|
||||
if (cmd.value == 0x20 && isLocal (cmd.target)) // JSR
|
||||
arrow = "<--";
|
||||
|
||||
if (cmd.isTarget)
|
||||
if (arrow.isEmpty ())
|
||||
arrow = "-->";
|
||||
else
|
||||
arrow = "<->";
|
||||
|
||||
return arrow;
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
private boolean isLocal (int target)
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
return target >= loadAddress
|
||||
&& target < loadAddress + buffer.length + extraBuffer.length;
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
private void getEquates ()
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
equates = new HashMap<Integer, String> ();
|
||||
DataInputStream inputEquates =
|
||||
new DataInputStream (DiskBrowser.class.getClassLoader ()
|
||||
.getResourceAsStream ("com/bytezone/diskbrowser/applefile/equates.txt"));
|
||||
BufferedReader in = new BufferedReader (new InputStreamReader (inputEquates));
|
||||
|
||||
String line;
|
||||
try
|
||||
{
|
||||
while ((line = in.readLine ()) != null)
|
||||
{
|
||||
if (!line.isEmpty () && !line.startsWith ("*"))
|
||||
{
|
||||
int address = Integer.parseInt (line.substring (0, 4), 16);
|
||||
if (equates.containsKey (address))
|
||||
System.out.printf ("Duplicate equate entry : %04X%n" + address);
|
||||
else
|
||||
equates.put (address, line.substring (6));
|
||||
}
|
||||
}
|
||||
in.close ();
|
||||
}
|
||||
catch (IOException e)
|
||||
{
|
||||
e.printStackTrace ();
|
||||
}
|
||||
}
|
||||
|
||||
// ---------------------------------------------------------------------------------//
|
||||
class StringLocation
|
||||
// ---------------------------------------------------------------------------------//
|
||||
{
|
||||
int offset;
|
||||
byte hi, lo;
|
||||
int length;
|
||||
boolean zeroTerminated;
|
||||
boolean lowTerminated;
|
||||
boolean hasLengthByte;
|
||||
int digits;
|
||||
int letters;
|
||||
int punctuation;
|
||||
int controlChars;
|
||||
int spaces;
|
||||
|
||||
public StringLocation (int first, int last)
|
||||
{
|
||||
offset = first;
|
||||
length = last - offset + 1;
|
||||
int end = last + 1;
|
||||
|
||||
zeroTerminated = end < buffer.length && buffer[end] == 0;
|
||||
lowTerminated = end < buffer.length && buffer[end] >= 32 && buffer[end] < 127;
|
||||
|
||||
if (first > 0 && (buffer[first] & 0xFF) == length + 1)
|
||||
{
|
||||
hasLengthByte = true;
|
||||
--offset;
|
||||
++length;
|
||||
}
|
||||
|
||||
hi = (byte) ((offset + loadAddress) >>> 8);
|
||||
lo = (byte) ((offset + loadAddress) & 0x00FF);
|
||||
|
||||
for (int i = offset; i < offset + length; i++)
|
||||
{
|
||||
int val = buffer[i] & 0x7F;
|
||||
if (val < 32 || val == 127)
|
||||
++controlChars;
|
||||
else if (val == 32)
|
||||
++spaces;
|
||||
else if (val >= 48 && val <= 57)
|
||||
++digits;
|
||||
else if (val >= 65 && val <= 90)
|
||||
++letters;
|
||||
else if (val >= 97 && val <= 122)
|
||||
++letters;
|
||||
else
|
||||
++punctuation;
|
||||
}
|
||||
}
|
||||
|
||||
boolean matches (byte[] buffer, int ptr)
|
||||
{
|
||||
return lo == buffer[ptr] && hi == buffer[ptr + 1];
|
||||
}
|
||||
|
||||
boolean likelyString ()
|
||||
{
|
||||
return spaces > 0 || letters > punctuation;
|
||||
}
|
||||
|
||||
public String address ()
|
||||
{
|
||||
return String.format ("%04X %02X %02X", offset, hi, lo);
|
||||
}
|
||||
|
||||
public String toStatisticsString ()
|
||||
{
|
||||
return String.format ("%2d, %2d, %2d, %2d, %2d", digits, letters, punctuation,
|
||||
controlChars, spaces);
|
||||
}
|
||||
|
||||
@Override
|
||||
public String toString ()
|
||||
{
|
||||
StringBuilder text = new StringBuilder ();
|
||||
|
||||
if (hasLengthByte)
|
||||
text.append ("<length>");
|
||||
|
||||
for (int i = offset; i < offset + length; i++)
|
||||
{
|
||||
int val = buffer[i] & 0x7F;
|
||||
if (val == 4)
|
||||
text.append ("<ctrl-D>");
|
||||
else if (val == 10)
|
||||
text.append ("<LF>");
|
||||
else if (val == 13)
|
||||
text.append ("<CR>");
|
||||
else
|
||||
text.append ((char) val);
|
||||
}
|
||||
if (lowTerminated)
|
||||
text.append ((char) buffer[offset + length]);
|
||||
|
||||
return text.toString ();
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
x
Reference in New Issue
Block a user