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_mm256_extracti128_si256

Extracts 128-bits of packed integer data of the second source vector into the destination vector at a 128-bit offset from imm8[0]. The corresponding Intel® AVX2 instruction is
VEXTRACTI128
.

Syntax

extern __m128i _mm256_extracti128_si256(__m256i a, int offset);
Arguments
a
integer source vector
offset
integer constant specifying offset
Description
Extract 128 bits (composed of integer data) from a, selected with imm, and store the result in dst.
Extracts 128-bits of packed integer data from source vector
a
with
offset
. The remaining portions of the destination are written by the corresponding fields of the source vector. The destination may be either an
XMM
register or a 128-bit memory location. The high 7 bits of the immediate are ignored.
Returns