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inverter byte

elegante inversion.


/*------------------------------------------------------------------------------

                                        INVERSION DE BYTE 8 BIT, LSB ->  MSB

------------------------------------------------------------------------------*/
unsigned char mr;

unsigned char invertir_byte (mr) {

  mr = (mr & 0x0F) << 4 | (mr & 0xF0) >> 4;
  mr = (mr & 0x33) << 2 | (mr & 0xCC) >> 2;
  mr = (mr & 0x55) << 1 | (mr & 0xAA) >> 1;

return (mr);

}


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