gistfile1.c

#include<xmmintrin.h>
#include<stdio.h>

#define N 8

int main()

{
  /* unsigned char a[N] = {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07}; */
  /* unsigned char b[N] = {0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f}; */

  /* unsigned char a[N] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; */
  /* unsigned char b[N] = {0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; */

  __m64 a = (__m64)0x0000000000000000LL;
  __m64 b = (__m64)0x0808000000000000LL;

  __m64 res = _mm_sad_pu8(a, b);

  /* int i; */
  /* for (i = 0; i < N; i=i+8) { */
  /*   __m64 newa = (__m64)((long long int)*(a + i)); */
  /*   __m64 newb = (__m64)((long long int)*(b + i)); */
  /*   __m64 res = _mm_sad_pu8((__m64)((long long int)*(a + i)), */
  /*                           (__m64)((long long int)*(b + i))); */

  /*   unsigned long long int to_print = (unsigned long long int) res; */

  /*   printf("%llx\n", to_print); */
  /* } */

  unsigned long long int to_print = (unsigned long long int) res;

  printf("%llx\n", to_print);


  return 0;

}