sse2

gistfile1.txt

#include <emmintrin.h> //sse2
#include <stdio.h>
/*
#include <xmmintrin.h> //sse
#include <mmintrin.h> //mmx

intro
http://www.linuxjournal.com/content/introduction-gcc-compiler-intrinsics-vector-processing

printf && set
http://stackoverflow.com/questions/13257166/print-a-m128i-variable

gcc -mfpmath=sse -mmmx -msse -msse2
*/

int main(int argc, char * argv[]){

    __m128i a = _mm_set_epi32(1, 2, 3, 4);
    __m128i b = _mm_set_epi32(5, 6, 7, 8);
    __m128i c;
    c= _mm_add_epi32(a,b);
    uint32_t *val = (uint32_t*) &c;
    printf("%d, %d, %d, %d\n", val[0], val[1], val[2], val[3]);
return 0;
}