--- a/graal/com.oracle.graal.word/src/com/oracle/graal/word/Word.java	Mon Jul 15 16:24:03 2013 +0200
+++ b/graal/com.oracle.graal.word/src/com/oracle/graal/word/Word.java	Mon Jul 15 16:24:08 2013 +0200
@@ -61,6 +61,7 @@
          READ,
          READ_COMPRESSED,
          WRITE,
+         INITIALIZE,
          ZERO,
          FROM_UNSIGNED,
          FROM_SIGNED,
@@ -758,6 +759,12 @@
     }
 
     @Override
+    @Operation(opcode = Opcode.INITIALIZE)
+    public void initializeWord(WordBase offset, WordBase val, LocationIdentity locationIdentity) {
+        unsafe.putAddress(add((Word) offset).unbox(), ((Word) val).unbox());
+    }
+
+    @Override
     @Operation(opcode = Opcode.WRITE)
     public native void writeObject(WordBase offset, Object val, LocationIdentity locationIdentity);
 
@@ -810,6 +817,12 @@
     }
 
     @Override
+    @Operation(opcode = Opcode.INITIALIZE)
+    public void initializeWord(int offset, WordBase val, LocationIdentity locationIdentity) {
+        initializeWord(signed(offset), val, locationIdentity);
+    }
+
+    @Override
     @Operation(opcode = Opcode.WRITE)
     public void writeObject(int offset, Object val, LocationIdentity locationIdentity) {
         writeObject(signed(offset), val, locationIdentity);