diff --git a/src/main/java/org/JesusFreke/dexlib/code/Format/Format11n.java b/src/main/java/org/JesusFreke/dexlib/code/Format/Format11n.java
new file mode 100644
index 00000000..d12eb61d
--- /dev/null
+++ b/src/main/java/org/JesusFreke/dexlib/code/Format/Format11n.java
@@ -0,0 +1,75 @@
+/*
+ * [The "BSD licence"]
+ * Copyright (c) 2009 Ben Gruver
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package org.JesusFreke.dexlib.code.Format;
+
+import org.JesusFreke.dexlib.code.Instruction;
+import org.JesusFreke.dexlib.code.Opcode;
+import org.JesusFreke.dexlib.DexFile;
+
+public class Format11n extends Format
+{
+    public static final Format11n Format = new Format11n();
+
+    private Format11n() {
+    }
+
+    public Instruction make(DexFile dexFile, byte opcode, byte regA, byte litB) {
+        byte[] bytes = new byte[2];
+        
+        Opcode op = Opcode.getOpcodeByValue(opcode);
+
+        checkOpcodeFormat(op);
+
+
+        if (regA >= 1<<4) {
+            throw new RuntimeException("The register number must be less than v16");
+        }
+
+        if (litB < -(1<<3) ||
+            litB >= 1<<3) {
+            throw new RuntimeException("The literal value must be between -8 and 7 inclusive");
+        }
+
+        bytes[0] = opcode;
+        bytes[1] = (byte)((litB << 4) | regA);
+
+
+        return new Instruction(dexFile, bytes, null);
+    }
+
+    public int getByteCount()
+    {
+        return 2;
+    }
+
+    public String getFormatName()
+    {
+        return "11n";
+    }
+}