libhashsum_reverse_byte__.c


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/* See LICENSE file for copyright and license details. */
#include "common.h"


uint8_t
libhashsum_reverse_byte__(uint8_t x)
{
	x = (uint8_t)(((x & 0xAAU) >> 1) | ((x << 1) & 0xAAU));
	x = (uint8_t)(((x & 0xCCU) >> 2) | ((x << 2) & 0xCCU));
	x = (uint8_t)(((x & 0xF0U) >> 4) | ((x << 4) & 0xF0U));
	return x;
}