diff --git a/dexlib/src/main/java/org/jf/dexlib/Code/FiveRegisterInstruction.java b/dexlib/src/main/java/org/jf/dexlib/Code/FiveRegisterInstruction.java
new file mode 100644
index 00000000..f4c3b611
--- /dev/null
+++ b/dexlib/src/main/java/org/jf/dexlib/Code/FiveRegisterInstruction.java
@@ -0,0 +1,10 @@
+package org.jf.dexlib.Code;
+
+public interface FiveRegisterInstruction {
+    byte getRegCount();
+    byte getRegisterA();
+    byte getRegisterD();
+    byte getRegisterE();
+    byte getRegisterF();
+    byte getRegisterG();
+}
diff --git a/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction35c.java b/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction35c.java
index 2ea0552c..e402054e 100644
--- a/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction35c.java
+++ b/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction35c.java
@@ -28,6 +28,7 @@
 
 package org.jf.dexlib.Code.Format;
 
+import org.jf.dexlib.Code.FiveRegisterInstruction;
 import org.jf.dexlib.Code.Instruction;
 import org.jf.dexlib.Code.InstructionWithReference;
 import org.jf.dexlib.Code.Opcode;
@@ -39,7 +40,7 @@ import org.jf.dexlib.TypeIdItem;
 import org.jf.dexlib.Util.NumberUtils;
 import org.jf.dexlib.Util.AnnotatedOutput;
 
-public class Instruction35c extends InstructionWithReference {
+public class Instruction35c extends InstructionWithReference implements FiveRegisterInstruction {
     public static final Instruction.InstructionFactory Factory = new Factory();
     private byte regCount;
     private byte regA;
@@ -103,14 +104,14 @@ public class Instruction35c extends InstructionWithReference {
         return Format.Format35c;
     }
 
-    public byte getRegisterA() {
-        return regA;
-    }
-
     public byte getRegCount() {
         return regCount;
     }
 
+    public byte getRegisterA() {
+        return regA;
+    }
+
     public byte getRegisterD() {
         return regD;
     }
diff --git a/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction35ms.java b/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction35ms.java
index 1f247cf2..06f48036 100644
--- a/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction35ms.java
+++ b/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction35ms.java
@@ -28,6 +28,7 @@
 
 package org.jf.dexlib.Code.Format;
 
+import org.jf.dexlib.Code.FiveRegisterInstruction;
 import org.jf.dexlib.Code.Instruction;
 import org.jf.dexlib.Code.Opcode;
 import org.jf.dexlib.Util.NumberUtils;
@@ -35,7 +36,7 @@ import org.jf.dexlib.Util.AnnotatedOutput;
 import org.jf.dexlib.DexFile;
 
 
-public class Instruction35ms extends Instruction {
+public class Instruction35ms extends Instruction implements FiveRegisterInstruction {
     public static final Instruction.InstructionFactory Factory = new Factory();
     private byte regCount;
     private byte regA;
@@ -97,14 +98,14 @@ public class Instruction35ms extends Instruction {
         return Format.Format35ms;
     }
 
-    public byte getRegisterA() {
-        return regA;
-    }
-
     public byte getRegCount() {
         return regCount;
     }
 
+    public byte getRegisterA() {
+        return regA;
+    }
+
     public byte getRegisterD() {
         return regD;
     }
diff --git a/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction35msf.java b/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction35msf.java
index 5374d3f4..34afaf07 100644
--- a/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction35msf.java
+++ b/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction35msf.java
@@ -28,12 +28,13 @@
 
 package org.jf.dexlib.Code.Format;
 
+import org.jf.dexlib.Code.FiveRegisterInstruction;
 import org.jf.dexlib.Code.Opcode;
 import org.jf.dexlib.Code.InstructionWithReference;
 import org.jf.dexlib.MethodIdItem;
 import org.jf.dexlib.Util.AnnotatedOutput;
 
-public class Instruction35msf extends InstructionWithReference {
+public class Instruction35msf extends InstructionWithReference implements FiveRegisterInstruction {
     private final Instruction35ms unfixedInstruction;
 
     public Instruction35msf(Opcode opcode, Instruction35ms unfixedInstruction, MethodIdItem method) {
@@ -61,14 +62,14 @@ public class Instruction35msf extends InstructionWithReference {
         return Format.Format35msf;
     }
 
-    public byte getRegisterA() {
-        return unfixedInstruction.getRegisterA();
-    }
-
     public byte getRegCount() {
         return unfixedInstruction.getRegCount();
     }
 
+    public byte getRegisterA() {
+        return unfixedInstruction.getRegisterA();
+    }
+
     public byte getRegisterD() {
         return unfixedInstruction.getRegisterD();
     }
diff --git a/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction35s.java b/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction35s.java
index 026b15df..f30e0bbb 100644
--- a/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction35s.java
+++ b/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction35s.java
@@ -28,6 +28,7 @@
 
 package org.jf.dexlib.Code.Format;
 
+import org.jf.dexlib.Code.FiveRegisterInstruction;
 import org.jf.dexlib.Code.Instruction;
 import org.jf.dexlib.Code.Opcode;
 import org.jf.dexlib.Code.InstructionWithReference;
@@ -39,7 +40,7 @@ import org.jf.dexlib.DexFile;
 import org.jf.dexlib.TypeIdItem;
 import org.jf.dexlib.MethodIdItem;
 
-public class Instruction35s extends InstructionWithReference {
+public class Instruction35s extends InstructionWithReference implements FiveRegisterInstruction {
     public static final Instruction.InstructionFactory Factory = new Factory();
     private byte regCount;
     private byte regA;
@@ -103,14 +104,14 @@ public class Instruction35s extends InstructionWithReference {
         return Format.Format35s;
     }
 
-    public byte getRegisterA() {
-        return regA;
-    }
-
     public byte getRegCount() {
         return regCount;
     }
 
+    public byte getRegisterA() {
+        return regA;
+    }
+
     public byte getRegisterD() {
         return regD;
     }
diff --git a/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction35sf.java b/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction35sf.java
index 7480ed05..ae721fce 100644
--- a/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction35sf.java
+++ b/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction35sf.java
@@ -28,11 +28,12 @@
 
 package org.jf.dexlib.Code.Format;
 
+import org.jf.dexlib.Code.FiveRegisterInstruction;
 import org.jf.dexlib.Code.Opcode;
 import org.jf.dexlib.Code.InstructionWithReference;
 import org.jf.dexlib.Util.AnnotatedOutput;
 
-public class Instruction35sf extends InstructionWithReference {
+public class Instruction35sf extends InstructionWithReference implements FiveRegisterInstruction {
     private final Instruction35s unfixedInstruction;
 
     public Instruction35sf(Instruction35s unfixedInstruction) {
@@ -59,14 +60,14 @@ public class Instruction35sf extends InstructionWithReference {
         return Format.Format35sf;
     }
 
-    public byte getRegisterA() {
-        return unfixedInstruction.getRegisterA();
-    }
-
     public byte getRegCount() {
         return unfixedInstruction.getRegCount();
     }
 
+    public byte getRegisterA() {
+        return unfixedInstruction.getRegisterA();
+    }
+
     public byte getRegisterD() {
         return unfixedInstruction.getRegisterD();
     }
diff --git a/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction3rc.java b/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction3rc.java
index eacf241c..1c0a2426 100644
--- a/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction3rc.java
+++ b/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction3rc.java
@@ -32,6 +32,8 @@ import org.jf.dexlib.Code.Instruction;
 import org.jf.dexlib.Code.InstructionWithReference;
 import org.jf.dexlib.Code.Opcode;
 import static org.jf.dexlib.Code.Opcode.*;
+
+import org.jf.dexlib.Code.RegisterRangeInstruction;
 import org.jf.dexlib.DexFile;
 import org.jf.dexlib.Item;
 import org.jf.dexlib.MethodIdItem;
@@ -39,7 +41,7 @@ import org.jf.dexlib.TypeIdItem;
 import org.jf.dexlib.Util.NumberUtils;
 import org.jf.dexlib.Util.AnnotatedOutput;
 
-public class Instruction3rc extends InstructionWithReference {
+public class Instruction3rc extends InstructionWithReference implements RegisterRangeInstruction {
     public static final Instruction.InstructionFactory Factory = new Factory();
     private byte regCount;
     private short startReg;
diff --git a/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction3rms.java b/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction3rms.java
index b26d5eef..bda501ab 100644
--- a/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction3rms.java
+++ b/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction3rms.java
@@ -30,11 +30,12 @@ package org.jf.dexlib.Code.Format;
 
 import org.jf.dexlib.Code.Instruction;
 import org.jf.dexlib.Code.Opcode;
+import org.jf.dexlib.Code.RegisterRangeInstruction;
 import org.jf.dexlib.Util.NumberUtils;
 import org.jf.dexlib.Util.AnnotatedOutput;
 import org.jf.dexlib.DexFile;
 
-public class Instruction3rms extends Instruction {
+public class Instruction3rms extends Instruction implements RegisterRangeInstruction {
  public static final Instruction.InstructionFactory Factory = new Factory();
     private byte regCount;
     private short startReg;
diff --git a/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction3rmsf.java b/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction3rmsf.java
index 9081c57a..7fbd4a3d 100644
--- a/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction3rmsf.java
+++ b/dexlib/src/main/java/org/jf/dexlib/Code/Format/Instruction3rmsf.java
@@ -30,10 +30,11 @@ package org.jf.dexlib.Code.Format;
 
 import org.jf.dexlib.Code.Opcode;
 import org.jf.dexlib.Code.InstructionWithReference;
+import org.jf.dexlib.Code.RegisterRangeInstruction;
 import org.jf.dexlib.MethodIdItem;
 import org.jf.dexlib.Util.AnnotatedOutput;
 
-public class Instruction3rmsf extends InstructionWithReference {
+public class Instruction3rmsf extends InstructionWithReference implements RegisterRangeInstruction {
     private final Instruction3rms unfixedInstruction;
 
     public Instruction3rmsf(Opcode opcode, Instruction3rms unfixedInstruction, MethodIdItem method) {
diff --git a/dexlib/src/main/java/org/jf/dexlib/Code/RegisterRangeInstruction.java b/dexlib/src/main/java/org/jf/dexlib/Code/RegisterRangeInstruction.java
new file mode 100644
index 00000000..c557fb01
--- /dev/null
+++ b/dexlib/src/main/java/org/jf/dexlib/Code/RegisterRangeInstruction.java
@@ -0,0 +1,6 @@
+package org.jf.dexlib.Code;
+
+public interface RegisterRangeInstruction {
+    short getRegCount();
+    int getStartRegister();
+}