76 lines
2.6 KiB
Java
76 lines
2.6 KiB
Java
/*
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* AppleCommander - An Apple ][ image utility.
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* Copyright (C) 2002-2022 by Robert Greene
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* robgreene at users.sourceforge.net
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package com.webcodepro.applecommander.storage.filters;
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import java.io.PrintWriter;
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import java.io.StringWriter;
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import java.util.List;
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import java.util.stream.Collectors;
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import com.webcodepro.applecommander.storage.FileEntry;
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import com.webcodepro.applecommander.storage.FileFilter;
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import io.github.applecommander.disassembler.api.Disassembler;
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import io.github.applecommander.disassembler.api.Instruction;
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import io.github.applecommander.disassembler.api.mos6502.InstructionSet6502;
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/**
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* Disassemble the given set of bytes.
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*/
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public class DisassemblyFileFilter implements FileFilter {
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public byte[] filter(FileEntry fileEntry) {
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List<Instruction> instructions = Disassembler.with(fileEntry.getFileData())
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.startingAddress(fileEntry.getAddress())
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.use(InstructionSet6502.for6502())
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.decode();
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String code = instructions.stream()
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.map(this::emitRaw)
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.collect(Collectors.joining());
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return code.getBytes();
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}
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public String getSuggestedFileName(FileEntry fileEntry) {
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String fileName = fileEntry.getFilename().trim();
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if (!fileName.toLowerCase().endsWith(".asm")) {
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fileName = fileName + ".asm";
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}
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return fileName;
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}
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public String emitRaw(Instruction instruction) {
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StringWriter sw = new StringWriter();
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PrintWriter pw = new PrintWriter(sw);
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pw.printf("%04X- ", instruction.getAddress());
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byte[] code = instruction.getBytes();
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for (int i=0; i<3; i++) {
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if (i >= code.length) {
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pw.printf(" ");
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} else {
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pw.printf("%02X ", code[i]);
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}
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}
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pw.printf(" %s\n", instruction.formatOperandWithValue());
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return sw.toString();
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}
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}
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