1

build.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!-- You may freely edit this file. See commented blocks below for -->
+<!-- some examples of how to customize the build. -->
+<!-- (If you delete it and reopen the project it will be recreated.) -->
+<!-- By default, only the Clean and Build commands use this build script. -->
+<!-- Commands such as Run, Debug, and Test only use this build script if -->
+<!-- the Compile on Save feature is turned off for the project. -->
+<!-- You can turn off the Compile on Save (or Deploy on Save) setting -->
+<!-- in the project's Project Properties dialog box.-->
+<project name="AsmAnalyzer" default="default" basedir=".">
+    <description>Builds, tests, and runs the project AsmAnalyzer.</description>
+    <import file="nbproject/build-impl.xml"/>
+    <!--
+
+    There exist several targets which are by default empty and which can be 
+    used for execution of your tasks. These targets are usually executed 
+    before and after some main targets. They are: 
+
+      -pre-init:                 called before initialization of project properties
+      -post-init:                called after initialization of project properties
+      -pre-compile:              called before javac compilation
+      -post-compile:             called after javac compilation
+      -pre-compile-single:       called before javac compilation of single file
+      -post-compile-single:      called after javac compilation of single file
+      -pre-compile-test:         called before javac compilation of JUnit tests
+      -post-compile-test:        called after javac compilation of JUnit tests
+      -pre-compile-test-single:  called before javac compilation of single JUnit test
+      -post-compile-test-single: called after javac compilation of single JUunit test
+      -pre-jar:                  called before JAR building
+      -post-jar:                 called after JAR building
+      -post-clean:               called after cleaning build products
+
+    (Targets beginning with '-' are not intended to be called on their own.)
+
+    Example of inserting an obfuscator after compilation could look like this:
+
+        <target name="-post-compile">
+            <obfuscate>
+                <fileset dir="${build.classes.dir}"/>
+            </obfuscate>
+        </target>
+
+    For list of available properties check the imported 
+    nbproject/build-impl.xml file. 
+
+
+    Another way to customize the build is by overriding existing main targets.
+    The targets of interest are: 
+
+      -init-macrodef-javac:     defines macro for javac compilation
+      -init-macrodef-junit:     defines macro for junit execution
+      -init-macrodef-debug:     defines macro for class debugging
+      -init-macrodef-java:      defines macro for class execution
+      -do-jar-with-manifest:    JAR building (if you are using a manifest)
+      -do-jar-without-manifest: JAR building (if you are not using a manifest)
+      run:                      execution of project 
+      -javadoc-build:           Javadoc generation
+      test-report:              JUnit report generation
+
+    An example of overriding the target for project execution could look like this:
+
+        <target name="run" depends="AsmAnalyzer-impl.jar">
+            <exec dir="bin" executable="launcher.exe">
+                <arg file="${dist.jar}"/>
+            </exec>
+        </target>
+
+    Notice that the overridden target depends on the jar target and not only on 
+    the compile target as the regular run target does. Again, for a list of available 
+    properties which you can use, check the target you are overriding in the
+    nbproject/build-impl.xml file. 
+
+    -->
+</project>

nbproject/genfiles.properties

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+build.xml.data.CRC32=2439a656
+build.xml.script.CRC32=1475b172
+build.xml.stylesheet.CRC32=28e38971@1.56.0.46
+# This file is used by a NetBeans-based IDE to track changes in generated files such as build-impl.xml.
+# Do not edit this file. You may delete it but then the IDE will never regenerate such files for you.
+nbproject/build-impl.xml.data.CRC32=2439a656
+nbproject/build-impl.xml.script.CRC32=44145888
+nbproject/build-impl.xml.stylesheet.CRC32=c6d2a60f@1.56.0.46

nbproject/private/private.properties

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+compile.on.save=true
+do.depend=false
+do.jar=true
+javac.debug=true
+javadoc.preview=true
+user.properties.file=C:\\Users\\aNNiMON\\AppData\\Roaming\\NetBeans\\dev\\build.properties

nbproject/private/private.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project-private xmlns="http://www.netbeans.org/ns/project-private/1">
+    <editor-bookmarks xmlns="http://www.netbeans.org/ns/editor-bookmarks/2" lastBookmarkId="0"/>
+</project-private>

nbproject/project.properties

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+annotation.processing.enabled=true
+annotation.processing.enabled.in.editor=false
+annotation.processing.processors.list=
+annotation.processing.run.all.processors=true
+annotation.processing.source.output=${build.generated.sources.dir}/ap-source-output
+application.title=AsmAnalyzer
+application.vendor=aNNiMON
+build.classes.dir=${build.dir}/classes
+build.classes.excludes=**/*.java,**/*.form
+# This directory is removed when the project is cleaned:
+build.dir=build
+build.generated.dir=${build.dir}/generated
+build.generated.sources.dir=${build.dir}/generated-sources
+# Only compile against the classpath explicitly listed here:
+build.sysclasspath=ignore
+build.test.classes.dir=${build.dir}/test/classes
+build.test.results.dir=${build.dir}/test/results
+# Uncomment to specify the preferred debugger connection transport:
+#debug.transport=dt_socket
+debug.classpath=\
+    ${run.classpath}
+debug.test.classpath=\
+    ${run.test.classpath}
+# This directory is removed when the project is cleaned:
+dist.dir=dist
+dist.jar=${dist.dir}/AsmAnalyzer.jar
+dist.javadoc.dir=${dist.dir}/javadoc
+endorsed.classpath=
+excludes=
+includes=**
+jar.compress=false
+javac.classpath=
+# Space-separated list of extra javac options
+javac.compilerargs=
+javac.deprecation=false
+javac.processorpath=\
+    ${javac.classpath}
+javac.source=1.6
+javac.target=1.6
+javac.test.classpath=\
+    ${javac.classpath}:\
+    ${build.classes.dir}
+javac.test.processorpath=\
+    ${javac.test.classpath}
+javadoc.additionalparam=
+javadoc.author=false
+javadoc.encoding=${source.encoding}
+javadoc.noindex=false
+javadoc.nonavbar=false
+javadoc.notree=false
+javadoc.private=false
+javadoc.splitindex=true
+javadoc.use=true
+javadoc.version=false
+javadoc.windowtitle=
+main.class=com.annimon.asm.Main
+manifest.file=manifest.mf
+meta.inf.dir=${src.dir}/META-INF
+mkdist.disabled=false
+platform.active=default_platform
+run.classpath=\
+    ${javac.classpath}:\
+    ${build.classes.dir}
+# Space-separated list of JVM arguments used when running the project.
+# You may also define separate properties like run-sys-prop.name=value instead of -Dname=value.
+# To set system properties for unit tests define test-sys-prop.name=value:
+run.jvmargs=
+run.test.classpath=\
+    ${javac.test.classpath}:\
+    ${build.test.classes.dir}
+source.encoding=windows-1251
+src.dir=src
+test.src.dir=test

nbproject/project.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://www.netbeans.org/ns/project/1">
+    <type>org.netbeans.modules.java.j2seproject</type>
+    <configuration>
+        <data xmlns="http://www.netbeans.org/ns/j2se-project/3">
+            <name>AsmAnalyzer</name>
+            <source-roots>
+                <root id="src.dir"/>
+            </source-roots>
+            <test-roots>
+                <root id="test.src.dir"/>
+            </test-roots>
+        </data>
+    </configuration>
+</project>

src/com/annimon/asm/AnalyzerPanel.java

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+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.annimon.asm;
+
+import com.annimon.asm.exceptions.ExceptionWithLineNumber;
+import java.awt.BorderLayout;
+import java.awt.Dimension;
+import java.awt.Font;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import javax.swing.JButton;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+import javax.swing.JScrollPane;
+import javax.swing.JTextPane;
+import javax.swing.event.CaretEvent;
+import javax.swing.event.CaretListener;
+import javax.swing.text.BadLocationException;
+import javax.swing.text.JTextComponent;
+import javax.swing.text.Utilities;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public class AnalyzerPanel extends JPanel {
+    
+    private JLabel lineNumberLabel;
+    private JTextPane textPane;
+    private JButton analyzeButton;
+
+    public AnalyzerPanel() {
+        lineNumberLabel = new JLabel("Line: 1");
+        initTextPane();
+        initAnalyzeButton();
+        
+        setLayout(new BorderLayout(0, 0));
+        add(lineNumberLabel, BorderLayout.NORTH);
+        add(new JScrollPane(textPane));
+        add(analyzeButton, BorderLayout.SOUTH);
+    }
+    
+    private void initTextPane() {
+        textPane = new JTextPane();
+        textPane.setPreferredSize(new Dimension(300, 300));
+        textPane.addCaretListener(new CaretListener() {
+
+            @Override
+            public void caretUpdate(CaretEvent caretEvent) {
+                JTextComponent textComponent = (JTextComponent)caretEvent.getSource();
+
+                int pos = caretEvent.getDot();
+                int rowNumber = (pos == 0) ? 1 : 0;
+                try {
+                    int offset = pos;
+                    while (offset > 0) {
+                        offset = Utilities.getRowStart(textComponent, offset) - 1;
+                        rowNumber++;
+                    }
+                } catch (BadLocationException ex) {}
+
+                lineNumberLabel.setText("Line: " + rowNumber);
+            }
+        });
+        textPane.setFont(new Font("Consolas", Font.PLAIN, 14));
+        textPane.setText(getTextFromResource("/test.asm"));
+    }
+
+    private void initAnalyzeButton() {
+        analyzeButton = new JButton("Analyze");
+        analyzeButton.addActionListener(new ActionListener() {
+
+            @Override
+            public void actionPerformed(ActionEvent actionEvent) {
+                String allText = textPane.getText();
+                LexicalAnalyzer lex = new LexicalAnalyzer(allText);
+                lex.analyze();
+                
+                SyntaxAnalyzer syn = new SyntaxAnalyzer(lex.getLexicTable());
+                try {
+                    syn.analyze();
+                } catch (ExceptionWithLineNumber ex) {
+                    System.out.println(ex.getMessage());
+                }
+            }
+        });
+    }
+    
+    private String getTextFromResource(String res) {
+        try {
+            InputStream is = getClass().getResourceAsStream(res);
+            BufferedReader reader = new BufferedReader(new InputStreamReader(is));
+            
+            StringBuilder text = new StringBuilder();
+            String line;
+            while( (line = reader.readLine()) != null ) {
+                text.append(line).append(System.lineSeparator());
+            }
+            
+            reader.close();
+            return text.toString();
+        } catch (IOException ex) {}
+        return "";
+    }
+}

src/com/annimon/asm/DirectiveConvertor.java

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+package com.annimon.asm;
+
+import com.annimon.asm.directives.*;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public class DirectiveConvertor {
+    
+    private static final Directive[] DIRECTIVES = {
+        new Comma(),
+        new DB(), new DW(),
+        new InfinityValue(), new ByteValue(), new WordValue(),
+        new Add(), new Mul(), new Push(), new Pop(),
+        new ByteRegister(), new WordRegister(),
+        new Variable()
+    };
+    
+    /**
+     * Êîíâåðòèðîâàòü äèðåêòèâó â å¸ èäåíòèôèêàòîð.
+     * @param text äèðåêòèâà (dw, push, 0 è ò.ä.)
+     * @return èäåíòèôèêàòîð äèðåêòèâû
+     */
+    public static int convert(String text) {
+        for (int i = 0; i < DIRECTIVES.length; i++) {
+            if (DIRECTIVES[i].isDirective(text)) {
+                return DIRECTIVES[i].getId();
+            }
+        }
+        
+        return -1;
+    } 
+}

src/com/annimon/asm/LexicLine.java

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+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.annimon.asm;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public class LexicLine {
+
+    int lineNumber;
+    int[] line;
+
+    public LexicLine(int lineNumber, int[] line) {
+        this.lineNumber = lineNumber;
+        this.line = line;
+    }
+}

src/com/annimon/asm/LexicTable.java

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+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.annimon.asm;
+
+import java.util.ArrayList;
+
+/**
+ * @author aNNiMON
+ */
+public class LexicTable {
+    
+    private ArrayList<LexicLine> lexicLines;
+    
+    public LexicTable() {
+        lexicLines = new ArrayList<LexicLine>();
+    }
+    
+    public void addLexicLine(int lineNumber, int[] line) {
+        lexicLines.add(new LexicLine(lineNumber, line));
+    }
+    
+    public int getSize() {
+        return lexicLines.size();
+    }
+    
+    public LexicLine getLexicAt(int pos) {
+        return lexicLines.get(pos);
+    }
+    
+    public void updateLexicAt(LexicLine lexic, int pos) {
+        lexicLines.set(pos, lexic);
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder text = new StringBuilder();
+        for(LexicLine lexic : lexicLines) {
+            text.append(lexic.lineNumber).append(':');
+            int[] array = lexic.line;
+            for (int i = 0; i < array.length; i++) {
+                text.append("   ");
+                text.append(array[i]);
+            }
+            text.append(System.lineSeparator());
+        }
+        return text.toString();
+    }
+    
+}

src/com/annimon/asm/LexicalAnalyzer.java

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+package com.annimon.asm;
+
+import com.annimon.asm.exceptions.ExceptionWithLineNumber;
+import java.util.ArrayList;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public class LexicalAnalyzer {
+    
+    private String[] lines;
+    private LexicTable lexicTable;
+
+    public LexicalAnalyzer(String text) {
+        lines = text.split(System.lineSeparator());
+        
+        lexicTable = new LexicTable();
+    }
+    
+    public LexicTable getLexicTable() {
+        return lexicTable;
+    }
+    
+    public void analyze() {
+        for (int i = 0; i < lines.length; i++) {
+            analyzeLine(i);
+        }
+        System.out.println(lexicTable.toString());
+    }
+    
+    private void analyzeLine(int lineNumber) {
+        String line = lines[lineNumber];
+        if(line.isEmpty()) return;
+        String[] parts = split(line);
+        
+        int length = parts.length;
+        int[] lexicIds = new int[length];
+        for (int i = 0; i < length; i++) {
+            lexicIds[i] = DirectiveConvertor.convert(parts[i].trim());
+        }
+        
+        lexicTable.addLexicLine(lineNumber+1, lexicIds);
+    }
+    
+    private String[] split(String text) {
+        ArrayList<String> parts = new ArrayList<String>();
+        int length = text.length();
+        StringBuilder sb = new StringBuilder();
+        for (int ch = 0; ch < length; ch++) {
+            int i = text.charAt(ch);
+            if (i == ' ') {
+                if (sb.length() > 0) {
+                    parts.add(sb.toString().trim());
+                    sb.setLength(0);
+                }
+            } else if (i == ',') {
+                if (sb.length() > 0) {
+                    parts.add(sb.toString().trim());
+                    parts.add(",");
+                    sb.setLength(0);
+                }
+            } else {
+                sb.append((char) i);
+            }
+        }
+        if (sb.length() > 0) {
+            parts.add(sb.toString().trim());
+        }
+        String[] m = new String[parts.size()];
+        m = parts.toArray(m);
+        return m;
+    }
+    
+}

src/com/annimon/asm/Main.java

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+package com.annimon.asm;
+
+import javax.swing.JFrame;
+
+/**
+ * @author aNNiMON
+ */
+public class Main extends JFrame {
+
+    public static void main(String[] args) {
+        new Main().setVisible(true);
+    }
+
+    public Main() {
+        super("Assembler analyzer");
+        setDefaultCloseOperation(EXIT_ON_CLOSE);
+        
+        add(new AnalyzerPanel());
+        pack();
+    }
+    
+}

src/com/annimon/asm/SyntaxAnalyzer.java

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+package com.annimon.asm;
+
+import com.annimon.asm.directives.ID;
+import com.annimon.asm.exceptions.ExceptionWithLineNumber;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public class SyntaxAnalyzer {
+    
+    private LexicTable lexicTable;
+
+    public SyntaxAnalyzer(LexicTable lexicTable) {
+        this.lexicTable = lexicTable;
+    }
+    
+    public void analyze() throws ExceptionWithLineNumber {
+        for (int i = 0; i < lexicTable.getSize(); i++) {
+            LexicLine line = lexicTable.getLexicAt(i);
+            analyzeLine(line.lineNumber, line.line);
+        }
+    }
+    
+    private void analyzeLine(int lineNumber, int[] lexic) throws ExceptionWithLineNumber {
+        if (lexic[0] == ID.VAR) {
+            
+        }
+    }
+    
+}

src/com/annimon/asm/directives/Add.java

@@ -0,0 +1,17 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.annimon.asm.directives;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public class Add extends Directive {
+
+    public Add() {
+        super("add", ID.ADD);
+    }
+    
+}

src/com/annimon/asm/directives/ByteRegister.java

@@ -0,0 +1,32 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.annimon.asm.directives;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public class ByteRegister extends Register {
+    
+    public ByteRegister() {
+        super();
+    }
+
+    @Override
+    public int getId() {
+        return ID.REGISTER_BYTE;
+    }
+
+    @Override
+    protected String[] getRegisterNames() {
+        return new String[] {
+            "ah", "al",
+            "bh", "bl",
+            "ch", "cl",
+            "dh", "dl",
+        };
+    }
+    
+}

src/com/annimon/asm/directives/ByteValue.java

@@ -0,0 +1,31 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.annimon.asm.directives;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public class ByteValue extends NumericValue {
+    
+    public ByteValue() {
+        super();
+    }
+
+    @Override
+    public int getId() {
+        return ID.NUMBER_BYTE;
+    }
+
+    @Override
+    protected boolean checkRange(Integer value) {
+        if (value == null) return false;
+        if ( (-128 <= value.intValue()) && (value.intValue() <= 255) ) {
+            return true;
+        }
+        return false;
+    }
+    
+}

src/com/annimon/asm/directives/Comma.java

@@ -0,0 +1,17 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.annimon.asm.directives;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public class Comma extends Directive {
+
+    public Comma() {
+        super(",", ID.COMMA);
+    }
+    
+}

src/com/annimon/asm/directives/DB.java

@@ -0,0 +1,17 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.annimon.asm.directives;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public class DB extends Directive {
+
+    public DB() {
+        super("db", ID.DB);
+    }
+    
+}

src/com/annimon/asm/directives/DW.java

@@ -0,0 +1,17 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.annimon.asm.directives;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public class DW extends Directive {
+
+    public DW() {
+        super("dw", ID.DW);
+    }
+    
+}

src/com/annimon/asm/directives/Directive.java

@@ -0,0 +1,33 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.annimon.asm.directives;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public abstract class Directive {
+    
+    protected String name;
+    protected int id;
+    
+    protected Directive(String name, int id) {
+        this.name = name;
+        this.id = id;
+    }
+    
+    public String getName() {
+        return name;
+    }
+
+    public int getId() {
+        return id;
+    }
+    
+    
+    public boolean isDirective(String text) {
+        return text.equalsIgnoreCase(name);
+    }
+}

src/com/annimon/asm/directives/ID.java

@@ -0,0 +1,36 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.annimon.asm.directives;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public class ID {
+
+    public static final int
+            NULL = -1,
+            
+            DB = 0,
+            DW = 1,
+            
+            COMMA = 5,
+            
+            ADD = 10,
+            MUL = 11,
+            PUSH = 12,
+            POP = 13,
+            
+            NUMBER_BYTE = 100,
+            NUMBER_WORD = 101,
+            NUMBER_INFINITY = 102,
+            
+            REGISTER_BYTE = 200,
+            REGISTER_WORD = 201,
+            
+            VAR = 500,
+            VAR_BYTE = 501,
+            VAR_WORD = 502;
+}

src/com/annimon/asm/directives/InfinityValue.java

@@ -0,0 +1,31 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.annimon.asm.directives;
+
+/**
+ * Íåîïðåäåë¸ííîå çíà÷åíèå (?)
+ * @author aNNiMON
+ */
+public class InfinityValue extends NumericValue {
+    
+    public InfinityValue() {
+        super();
+    }
+    
+    @Override
+    public int getId() {
+        return ID.NUMBER_INFINITY;
+    }
+
+    @Override
+    public boolean isDirective(String text) {
+        return text.equals("?");
+    }
+
+    @Override
+    protected boolean checkRange(Integer value) {
+        return true;
+    }
+}

src/com/annimon/asm/directives/Mul.java

@@ -0,0 +1,17 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.annimon.asm.directives;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public class Mul extends Directive {
+
+    public Mul() {
+        super("mul", ID.MUL);
+    }
+    
+}

src/com/annimon/asm/directives/NumericValue.java

@@ -0,0 +1,45 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.annimon.asm.directives;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public abstract class NumericValue extends Directive {
+    
+    public NumericValue() {
+        super("", ID.NULL);
+    }
+
+    @Override
+    public boolean isDirective(String text) {
+        if (text == null) return false;
+        
+        Integer value = parse(text);
+        return checkRange(value);
+    }
+    
+    protected abstract boolean checkRange(Integer value);
+
+    private Integer parse(String text) {
+        int value;
+        if (text.toLowerCase().endsWith("h")) {
+            String hex = text.substring(0, text.length() - 1);
+            try {
+                value = Integer.parseInt(hex, 16);
+                return value;
+            } catch (NumberFormatException numberFormatException) {
+                return null;
+            }
+        }
+        try {
+            value = Integer.parseInt(text);
+            return value;
+        } catch (NumberFormatException numberFormatException) {
+            return null;
+        }
+    }
+}

src/com/annimon/asm/directives/Pop.java

@@ -0,0 +1,17 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.annimon.asm.directives;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public class Pop extends Directive {
+
+    public Pop() {
+        super("pop", ID.POP);
+    }
+    
+}

src/com/annimon/asm/directives/Push.java

@@ -0,0 +1,17 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.annimon.asm.directives;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public class Push extends Directive {
+
+    public Push() {
+        super("push", ID.PUSH);
+    }
+    
+}

src/com/annimon/asm/directives/Register.java

@@ -0,0 +1,29 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.annimon.asm.directives;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public abstract class Register extends Directive {
+    
+    public Register() {
+        super("", ID.NULL);
+    }
+    
+    @Override
+    public boolean isDirective(String text) {
+        String[] names = getRegisterNames();
+        for (int i = 0; i < names.length; i++) {
+            if (text.equalsIgnoreCase(names[i])) {
+                return true;
+            }
+        }
+        return false;
+    }
+    
+    protected abstract String[] getRegisterNames();
+}

src/com/annimon/asm/directives/Variable.java

@@ -0,0 +1,22 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.annimon.asm.directives;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public class Variable extends Directive {
+    
+    public Variable() {
+        super("", ID.VAR);
+    }
+
+    @Override
+    public boolean isDirective(String text) {
+        return true;
+    }
+    
+}

src/com/annimon/asm/directives/WordRegister.java

@@ -0,0 +1,30 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.annimon.asm.directives;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public class WordRegister extends Register {
+    
+    public WordRegister() {
+        super();
+    }
+
+    @Override
+    public int getId() {
+        return ID.REGISTER_WORD;
+    }
+
+    @Override
+    protected String[] getRegisterNames() {
+        return new String[] {
+            "ax", "bx", "cx", "dx",
+            "cs", "ds", "ss", "es"
+        };
+    }
+    
+}

src/com/annimon/asm/directives/WordValue.java

@@ -0,0 +1,31 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.annimon.asm.directives;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public class WordValue extends NumericValue {
+    
+    public WordValue() {
+        super();
+    }
+
+    @Override
+    public int getId() {
+        return ID.NUMBER_WORD;
+    }
+    
+    @Override
+    protected boolean checkRange(Integer value) {
+        if (value == null) return false;
+        if ( (-32768 <= value.intValue()) && (value.intValue() <= 65535) ) {
+            return true;
+        }
+        return false;
+    }
+    
+}

src/com/annimon/asm/exceptions/ExceptionWithLineNumber.java

@@ -0,0 +1,30 @@
+/*
+ * To change this template, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package com.annimon.asm.exceptions;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public abstract class ExceptionWithLineNumber extends Exception {
+    
+    private int lineNumber;
+    
+    public ExceptionWithLineNumber(int lineNumber) {
+        super();
+        this.lineNumber = lineNumber;
+    }
+    
+    public ExceptionWithLineNumber(String message, int lineNumber) {
+        super(message);
+        this.lineNumber = lineNumber;
+    }
+
+    @Override
+    public String getMessage() {
+        return super.getMessage() + " at line " + lineNumber;
+    }
+    
+}

src/test.asm

@@ -0,0 +1,8 @@
+num1 db 12
+num2 dw 2000
+num3 dw ?
+
+add num1, num2
+push num2
+mul num1
+pop ax