| 128 |  42 | 232 |  92 |  72 |  77 |  95 |  37 | 216 | 184 | 198 | 182 | 144 | 247 |  94 |   6 | -> cur
|  37 | 102 |   0 | 120 | 164 | 159 |   6 | 195 |  88 | 193 |  44 |  83 | 199 | 229 | 103 |  10 | -> ref

|  91 | 60  | 232 |  28 |  92 |  82 |  89 | 158 | 128 |   9 | 154 |  99 |  55 |  18 |   9 |   4 | -> abs dif
|    121    |    246    |    133    |    202    |    132    |    203    |     64    |     11    | -> wsad_l1
|          306          |          268          |          269          |          69           | -> wsad_l2
|                      440                      |                      303                      | -> wsad_l3
|                                              591                                              | -> wsad4x4


a = 2A = 00101010
cmp = 1
 -> a ^ cmp = 11010101

	-a = a ^ cmp + 1 = 11010110

b = 66 = 01100110
~cmp = 0
 -> b ^ (~cmp) = 01100110

suma = 11010110 + 
			 01100110							
      ----------
			100111100 ???
			
			 


