_mm_extract_epi8
Classification
SSE_ALL, Swizzle, CPUID Test: SSE4.1
Header File
smmintrin.h
Instruction
PEXTRB r32, xmm, imm8
Synopsis
 _mm_extract_epi8(__m128i a, const int imm8);
Description
Extract an 8-bit integer from "a", selected with "imm8", and store the result in the lower element of "dst".
Operation
dst[7:0] := (a[127:0] >> (imm8[3:0] * 8))[7:0]
dst[31:8] := 0