c++ Programming Glossary: vsum
SSE instructions to add all elements of an array http://stackoverflow.com/questions/10930595/sse-instructions-to-add-all-elements-of-an-array vector of all 1s for use with _mm_madd_epi16 __m128i vsum _mm_set1_epi32 0 initialise vector of four partial 32 bit sums.. of 16 bit values __m128i vh _mm_unpackhi_epi8 v vk0 vsum _mm_add_epi32 vsum _mm_madd_epi16 vl vk1 vsum _mm_add_epi32.. __m128i vh _mm_unpackhi_epi8 v vk0 vsum _mm_add_epi32 vsum _mm_madd_epi16 vl vk1 vsum _mm_add_epi32 vsum _mm_madd_epi16..
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