diff --git a/src/main/java/jace/applesoft/ApplesoftHandler.java b/src/main/java/jace/applesoft/ApplesoftHandler.java
index a261816..74cc154 100644
--- a/src/main/java/jace/applesoft/ApplesoftHandler.java
+++ b/src/main/java/jace/applesoft/ApplesoftHandler.java
@@ -4,12 +4,16 @@ import jace.Emulator;
 import jace.ide.Program;
 import jace.ide.CompileResult;
 import jace.ide.LanguageHandler;
+import java.util.Collections;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
 
 /**
  *
  * @author blurry
  */
-public class ApplesoftHandler implements LanguageHandler<Program> {
+public class ApplesoftHandler implements LanguageHandler<ApplesoftProgram> {
 
     @Override
     public String getNewDocumentContent() {
@@ -17,13 +21,49 @@ public class ApplesoftHandler implements LanguageHandler<Program> {
     }
 
     @Override
-    public CompileResult<Program> compile(Program program) {
-        return null;
+    public CompileResult<ApplesoftProgram> compile(Program program) {
+        final ApplesoftProgram result = ApplesoftProgram.fromString(program.getValue());
+        final Map<Integer, String> warnings = new LinkedHashMap<>();
+//        int lineNumber = 1;
+//        for (Line l : result.lines) {
+//            warnings.put(lineNumber++, l.toString());
+//        }
+        return new CompileResult<ApplesoftProgram>() {
+            @Override
+            public boolean isSuccessful() {
+                return result != null;
+            }
+
+            @Override
+            public ApplesoftProgram getCompiledAsset() {
+                return result;
+            }
+
+            @Override
+            public Map<Integer, String> getErrors() {
+                return Collections.EMPTY_MAP;
+            }
+
+            @Override
+            public Map<Integer, String> getWarnings() {
+                return warnings;
+            }
+
+            @Override
+            public List<String> getOtherMessages() {
+                return Collections.EMPTY_LIST;
+            }
+
+            @Override
+            public List<String> getRawOutput() {
+                return Collections.EMPTY_LIST;
+            }
+        };
     }
 
     @Override
-    public void execute(CompileResult<Program> lastResult) {
-        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
+    public void execute(CompileResult<ApplesoftProgram> lastResult) {
+        lastResult.getCompiledAsset().run();
     }
     
 }
diff --git a/src/main/java/jace/applesoft/ApplesoftProgram.java b/src/main/java/jace/applesoft/ApplesoftProgram.java
index 7475239..6d6c98f 100755
--- a/src/main/java/jace/applesoft/ApplesoftProgram.java
+++ b/src/main/java/jace/applesoft/ApplesoftProgram.java
@@ -18,6 +18,7 @@
  */
 package jace.applesoft;
 
+import jace.Emulator;
 import jace.core.RAM;
 import java.io.File;
 import java.io.FileInputStream;
@@ -40,6 +41,7 @@ public class ApplesoftProgram {
 
     List<Line> lines = new ArrayList<>();
     public static final int startingAddressPointer = 0x067;
+    public static final int BASIC_RUN = 0x0e000;
     int startingAddress = 0x0801;
 
     public static void main(String... args) {
@@ -113,4 +115,53 @@ public class ApplesoftProgram {
         out = lines.stream().map((l) -> l.toString() + "\n").reduce(out, String::concat);
         return out;
     }
+    
+    public static ApplesoftProgram fromString(String programSource) {
+        ApplesoftProgram program = new ApplesoftProgram();
+        for (String line : programSource.split("\\n")) {
+            if (line.trim().isEmpty()) continue;
+            program.lines.add(Line.fromString(line));
+        }
+        //correct line linkage
+        for (int i=0; i < program.lines.size(); i++) {
+            if (i > 0) {
+                program.lines.get(i).setPrevious(program.lines.get(i-1));
+            }
+            if (i < program.lines.size()-1) {
+                program.lines.get(i).setNext(program.lines.get(i+1));
+            }
+        }
+        return program;
+    };
+
+    public void run() {
+        RAM memory = Emulator.computer.memory;
+        Emulator.computer.pause();
+        int pos = memory.readWordRaw(startingAddressPointer);
+        for (Line line : lines) {
+            int nextPos = pos + line.getLength() + 1;
+            memory.write(pos++, (byte) (nextPos & 0x0ff), false, true);
+            memory.write(pos++, (byte) (nextPos>>8 & 0x0ff), false, true);
+            memory.write(pos++, (byte) (line.getNumber() & 0x0ff), false, true);
+            memory.write(pos++, (byte) (line.getNumber() >> 8 & 0x0ff), false, true);
+            boolean isFirst = true;
+            for (Command command : line.getCommands()) {
+                if (!isFirst) {
+                    memory.write(pos++, (byte) ':', false, true);
+                }
+                isFirst = false;
+                for (Command.ByteOrToken part : command.parts) {
+                    memory.write(pos++, part.getByte(), false, true);
+                }
+            }
+            memory.write(pos++, (byte) 0, false, true);
+        }
+        memory.write(pos++, (byte) 0, false, true);
+        memory.write(pos++, (byte) 0, false, true);
+        memory.write(pos++, (byte) 0, false, true);
+        memory.write(pos++, (byte) 0, false, true);
+        
+//        Emulator.computer.cpu.setProgramCounter(BASIC_RUN);
+        Emulator.computer.resume();
+    }
 }
diff --git a/src/main/java/jace/applesoft/Command.java b/src/main/java/jace/applesoft/Command.java
index d5759e3..ec006af 100755
--- a/src/main/java/jace/applesoft/Command.java
+++ b/src/main/java/jace/applesoft/Command.java
@@ -25,7 +25,7 @@ import java.util.List;
  * A command is a list of parts, either raw bytes (ascii text) or tokens. When
  * put together they represent a single basic statement.
  *
- * @author Brendan Robert (BLuRry) brendan.robert@gmail.com 
+ * @author Brendan Robert (BLuRry) brendan.robert@gmail.com
  */
 public class Command {
 
@@ -138,11 +138,32 @@ public class Command {
         LEFT((byte) 0x0E8, "LEFT$"),
         RIGHT((byte) 0x0E9, "RIGHT$"),
         MID((byte) 0x0EA, "MID$");
+
+        static TOKEN findMatch(String search, int start) {
+            for (TOKEN t : values()) {
+                int i = start;
+                boolean found = true;
+                for (int j = 0; j < t.toString().length() && j + i < search.length(); j++) {
+                    while (search.charAt(j + i) == ' ') {
+                        i++;
+                    }
+                    if (i + j >= search.length()
+                            || (search.charAt(i + j) != t.toString().charAt(j))) {
+                        found = false;
+                        break;
+                    }
+                }
+                if (found) {
+                    return t;
+                }
+            }
+            return null;
+        }
         private String str;
-        private byte b;
+        public byte code;
 
         TOKEN(byte b, String str) {
-            this.b = b;
+            this.code = b;
             this.str = str;
         }
 
@@ -153,7 +174,7 @@ public class Command {
 
         public static TOKEN fromByte(byte b) {
             for (TOKEN t : values()) {
-                if (t.b == b) {
+                if (t.code == b) {
                     return t;
                 }
             }
@@ -179,12 +200,25 @@ public class Command {
 
         }
 
+        public ByteOrToken(TOKEN token) {
+            isToken = true;
+            this.t = token;
+        }
+
         @Override
         public String toString() {
             return isToken
                     ? " " + t.toString() + " "
                     : String.valueOf((char) b);
         }
+
+        public byte getByte() {
+            if (isToken) {
+                return t.code;
+            } else {
+                return b;
+            }
+        }
     }
     List<ByteOrToken> parts = new ArrayList<ByteOrToken>();
 
diff --git a/src/main/java/jace/applesoft/Line.java b/src/main/java/jace/applesoft/Line.java
index 3926b58..103c5cd 100755
--- a/src/main/java/jace/applesoft/Line.java
+++ b/src/main/java/jace/applesoft/Line.java
@@ -18,21 +18,26 @@
  */
 package jace.applesoft;
 
+import jace.applesoft.Command.TOKEN;
+import static java.lang.Character.isDigit;
 import java.util.ArrayList;
 import java.util.List;
 
 /**
- * Representation of a line of applesoft basic, having a line number and a list of program commands.
- * @author Brendan Robert (BLuRry) brendan.robert@gmail.com 
+ * Representation of a line of applesoft basic, having a line number and a list
+ * of program commands.
+ *
+ * @author Brendan Robert (BLuRry) brendan.robert@gmail.com
  */
 public class Line {
 
-    private static char STATEMENT_BREAK = ':'; // delimits multiple commands, the colon character
-    private int number;
+    private static final char STATEMENT_BREAK = ':'; // delimits multiple commands, the colon character
+
+    private int number = -1;
     private Line next;
     private Line previous;
     private List<Command> commands = new ArrayList<>();
-    private int length;
+    private int length = 0;
 
     /**
      * @return the number
@@ -109,7 +114,9 @@ public class Line {
         String out = String.valueOf(getNumber());
         boolean isFirst = true;
         for (Command c : commands) {
-            if (!isFirst) out += STATEMENT_BREAK;
+            if (!isFirst) {
+                out += STATEMENT_BREAK;
+            }
             out += c.toString();
             isFirst = false;
         }
@@ -118,7 +125,7 @@ public class Line {
 
     static Line fromBinary(List<Byte> binary, int pos) {
         Line l = new Line();
-        int lineNumber = (binary.get(pos+2) & 0x0ff) + ((binary.get(pos+3) & 0x0ff) << 8);
+        int lineNumber = (binary.get(pos + 2) & 0x0ff) + ((binary.get(pos + 3) & 0x0ff) << 8);
         l.setNumber(lineNumber);
         pos += 4;
         Command c = new Command();
@@ -138,4 +145,73 @@ public class Line {
         l.length = size;
         return l;
     }
-}
\ No newline at end of file
+
+    static Line fromString(String lineString) {
+        Line l = new Line();
+        boolean inString = false;
+        boolean hasLineNumber = false;
+        boolean isComment = false;
+        Command currentCommand = new Command();
+        l.commands.add(currentCommand);
+        l.length = 4;
+        lineString = lineString.trim();
+        String upperLineString = lineString.toUpperCase();
+        for (int i = 0; i < lineString.length(); i++) {
+            if (!hasLineNumber) {
+                int lineNumber = 0;
+                for (; i < lineString.length() && isDigit(lineString.charAt(i)); i++) {
+                    lineNumber = lineNumber * 10 + lineString.charAt(i) - '0';
+                }
+                i--;
+                l.setNumber(lineNumber);
+                hasLineNumber = true;
+            } else if (inString || isComment) {
+                if (!isComment && lineString.charAt(i) == '"') {
+                    inString = false;
+                }
+                currentCommand.parts.add(new Command.ByteOrToken((byte) lineString.charAt(i)));
+                l.length++;
+            } else if (lineString.charAt(i) == '"') {
+                inString = true;
+                currentCommand.parts.add(new Command.ByteOrToken((byte) lineString.charAt(i)));
+                l.length++;
+            } else if (lineString.charAt(i) == STATEMENT_BREAK) {
+                currentCommand = new Command();
+                l.commands.add(currentCommand);
+                l.length++;                
+            } else if (lineString.charAt(i) == '?') {
+                Command.ByteOrToken part = new Command.ByteOrToken(TOKEN.PRINT);
+                currentCommand.parts.add(part);
+                l.length++;                
+            } else {
+                TOKEN match = Command.TOKEN.findMatch(upperLineString, i);
+                if (match != null) {
+                    if (match == TOKEN.REM) {
+                        isComment = true;
+                    }
+                    Command.ByteOrToken part = new Command.ByteOrToken(match);
+                    currentCommand.parts.add(part);
+                    for (int j=0; j+i <= match.toString().length(); j++) {
+                        while (lineString.charAt(i+j) == ' ') {
+                            i++;
+                        }
+                    }
+                    i += match.toString().length() - 1;
+                    if (isComment) {
+                        while (i+1 < lineString.length() && lineString.charAt(i+1) == ' ') {
+                            i++;
+                        }
+                    }
+                    l.length++;
+                } else {
+                    if (lineString.charAt(i) != ' ') {
+                        currentCommand.parts.add(new Command.ByteOrToken((byte) upperLineString.charAt(i)));
+                        l.length++;                        
+                    }
+                }
+            }
+        }
+        return l;
+    }
+
+}
diff --git a/src/main/java/jace/ide/Program.java b/src/main/java/jace/ide/Program.java
index 405e7ae..f63fb8d 100644
--- a/src/main/java/jace/ide/Program.java
+++ b/src/main/java/jace/ide/Program.java
@@ -3,7 +3,6 @@ package jace.ide;
 import jace.applesoft.ApplesoftHandler;
 import jace.assembly.AssemblyHandler;
 import java.io.BufferedReader;
-import java.io.BufferedWriter;
 import java.io.File;
 import java.io.FileReader;
 import java.io.FileWriter;