diff --git a/src/arm/assembler-arm.h b/src/arm/assembler-arm.h
index cc6ec05..be9aa92 100644
--- a/src/arm/assembler-arm.h
+++ b/src/arm/assembler-arm.h
@@ -120,6 +120,11 @@
     ASSERT(is_valid());
     return 1 << code_;
   }
+  void split_code(int* vm, int* m) const  {
+    ASSERT(is_valid());
+    *m = code_ & 0x1;
+    *vm = code_ >> 1;
+  }
 
   int code_;
 };
@@ -152,6 +157,11 @@
     ASSERT(is_valid());
     return 1 << code_;
   }
+  void split_code(int* vm, int* m) const  {
+    ASSERT(is_valid());
+    *m = (code_ & 0x10) >> 4;
+    *vm = code_ & 0x0F;
+  }
 
   int code_;
 };