Developer Guide and Reference

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_mm256_extractf128_si256

Extracts 128-bit scalar integer values. The corresponding Intel® AVX instruction is
VEXTRACTF128
.

Syntax

extern __m128i _mm256_extractf128_si256(__m256i m1, const int offset);
Arguments
m1
integer source vector
offset
a constant integer value that represents the offset from where extraction must start
Description
Extracts 128-bit scalar integer values from the source vector
m1
, starting from the location specified by the value in the
offset
parameter.
Returns
Result of the extraction operation.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804