
 BIT_TMP
 BIT_TMP
 A != B

      0   1   2   3   4 
    --------------------
  0|  1   0   0   0   3 
  1|  0   1   0   2   3 
  2|  0   0   2   0   3 
  3|  0   2   0   1   3 
  4|  4   4   4   4   4 

      0   1   2   3   4 
    --------------------
  0|  1   0   0   0   4 
  1|  0   1   0   2   4 
  2|  0   0   2   0   4 
  3|  0   2   0   1   4 
  4|  3   3   3   3   4 

