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diff --git a/src/com/quemaster/transformations/mjc2wsl/MicroJavaInput.java b/src/com/quemaster/transformations/mjc2wsl/MicroJavaInput.java
--- /dev/null
@@ -0,0 +1,151 @@
+package com.quemaster.transformations.mjc2wsl;
+
+/*
+ Copyright (C) 2014 Doni Pracner
+
+ This file is part of mjc2wsl.
+
+ mjc2wsl is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ mjc2wsl is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with mjc2wsl. If not, see <http://www.gnu.org/licenses/>.
+ */
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.util.HashMap;
+
+public class MicroJavaInput {
+ private HashMap<Integer, String> opMap;
+ public String opCodeFile = "mj-bytecodes.properties";
+ private InputStream mainIn;
+ int counter = -1;
+
+ int mainAdr;
+
+ int numberOfWords;
+ private int codesize;
+
+ public MicroJavaInput() {
+
+ }
+
+ public int get() {
+ int res = -1;
+ try {
+ res = mainIn.read();
+ if (res >= 0)
+ res = res << 24 >>> 24;
+ } catch (IOException ex) {
+ ex.printStackTrace();
+ }
+ counter++;
+ return res;
+ }
+
+ public int get2() {
+ return (get() * 256 + get()) << 16 >> 16;
+ }
+
+ public int get4() {
+ return (get2() << 16) + (get2() << 16 >>> 16);
+ }
+
+ public void processHeader(mjc2wsl mjc2wsl) throws Exception {
+ byte m = (byte) get();
+ byte j = (byte) get();
+ if (m != 'M' || j != 'J')
+ throw new Exception("Wrong start of bytecode file");
+ codesize = get4();
+ setNumberOfWords(get4());
+ setMainAdr(get4());
+ }
+
+ public void setStream(InputStream ins) {
+ mainIn = ins;
+ }
+
+ public int getCounter() {
+ return counter;
+ }
+
+ public int getCodesize() {
+ return codesize;
+ }
+
+ public int getMainAdr(mjc2wsl mjc2wsl) {
+ return mainAdr;
+ }
+
+ public int getNumberOfWords(mjc2wsl mjc2wsl) {
+ return numberOfWords;
+ }
+
+ void setNumberOfWords(int numberOfWords) {
+ this.numberOfWords = numberOfWords;
+ }
+
+ void setMainAdr(int mainAdr) {
+ this.mainAdr = mainAdr;
+ }
+
+ String getRelationFor(int opcode) throws Exception {
+ switch (opcode) {
+ case mjc2wsl.jeq:
+ return "=";
+ case mjc2wsl.jne:
+ return "<>";
+ case mjc2wsl.jlt:
+ return "<";
+ case mjc2wsl.jle:
+ return "<=";
+ case mjc2wsl.jgt:
+ return ">";
+ case mjc2wsl.jge:
+ return ">=";
+ }
+ throw new Exception("Wrong opcode for a relation");
+ }
+
+ boolean isJumpCode(int opcode) {
+ return (opcode >= mjc2wsl.jmp) && (opcode <= mjc2wsl.jge);
+ }
+
+ private HashMap<Integer, String> getOpMap() {
+ if (opMap == null) {
+ opMap = new HashMap<Integer, String>(60, 0.98f);
+ try {
+ BufferedReader in = new BufferedReader(new InputStreamReader(
+ getClass().getResourceAsStream(opCodeFile)));
+ String str = in.readLine();
+ while (str != null) {
+ String[] ss = str.split("=");
+ opMap.put(Integer.parseInt(ss[0]), ss[1]);
+ str = in.readLine();
+ }
+ in.close();
+ } catch (Exception ex) {
+ ex.printStackTrace();
+ }
+ }
+ return opMap;
+ }
+
+ public String getOpString(int op) {
+ return getOpMap().get(op);
+ }
+
+ public String describeOpCode(int op) {
+ return op + " (" + getOpString(op) + ")";
+ }
+
+}
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