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Microsoft Specific

Conditionally stores byte elements of d to address p.

void _mm_maskmove_si64(__m64 d , __m64 n , char * p);

The high bit of each byte in the selector n determines whether the corresponding byte in d will be stored.

if (sign(n0)) p[0] := d0
if (sign(n1)) p[1] := d1
if (sign(n7)) p[7] := d7

Header: mmintrin.h

END Microsoft Specific