_mm_add_round_sd
Classification
AVX-512, Arithmetic, CPUID Test: AVX512F
Header File
Instruction
VADDSD xmm, xmm, xmm {er}
Synopsis
_mm_add_round_sd(__m128d a, __m128d b, int rounding);
Description
Add the lower double-precision (64-bit) floating-point element in "a" and "b", store the result in the lower element of "dst", and copy the upper element from "a" to the upper element of "dst".
[round_note]
Operation
dst[63:0] := a[63:0] + b[63:0]
dst[127:64] := a[127:64]
dst[MAX:128] := 0