Alternative using mmx
n
Iu8vec8 *v1,*v2,*v3;
n
int i,j,k;
n
for(i=0;i<31;i++){
n
*v3=(*v1++)+(*v2++);
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v3++;
n
}
n
_mm_empty();
Type represents 8 by 8bit integers
Arithmetic on 8 bytes at a time
Indicates MMX regs are now free