1 typedef _Complex float __m128; 2 extern __m128 _mm_sub_ps (__m128 __A, __m128 __B); 3 extern __m128 _mm_mul_ps (__m128 __A, __m128 __B); 4 __m128 vq_nbest(const __m128 * codebook,__m128 d,__m128 in)5vq_nbest(const __m128 *codebook, __m128 d, __m128 in) 6 { 7 return _mm_sub_ps(d, _mm_mul_ps(in, *codebook++)); 8 } 9