1  int caller (unsigned int reg_type)
       2  {
       3    switch (reg_type)
       4      {
       5      case 0x80000000:
       6        return (int)foo();
       7  
       8      case 0x80000003:
       9        return (int) bar();
      10  
      11      case 0x80000001:
      12        return (int) baz();
      13  
      14      case 0x80000004:
      15        return (int) fooz();
      16      }
      17  }