return (VM_Interface.readAvailableBitsWord(ref) & SMALL_OBJECT_MASK) == SMALL_OBJECT_MASK;
return VM_Interface.readAvailableBitsWord(ref).and(SMALL_OBJECT_MASK).EQ(SMALL_OBJECT_MASK);
  static public boolean isSmallObject(VM_Address ref)    throws VM_PragmaUninterruptible, VM_PragmaInline {    return (VM_Interface.readAvailableBitsWord(ref) & SMALL_OBJECT_MASK) == SMALL_OBJECT_MASK;  }