_mm_mask_getmant_pd
Classification
AVX-512, Miscellaneous, CPUID Test: AVX512F
Header File
immintrin.h
Instruction
VGETMANTPD xmm {k}, xmm, imm8
Synopsis
 _mm_mask_getmant_pd(__m128d src, __mmask8 k, __m128d a, _MM_MANTISSA_NORM_ENUM interv, _MM_MANTISSA_SIGN_ENUM sc);
Description
Normalize the mantissas of packed double-precision (64-bit) floating-point elements in "a", and store the results in "dst" using writemask "k" (elements are copied from "src" when the corresponding mask bit is not set). This intrinsic essentially calculates "±(2^k)*|x.significand|", where "k" depends on the interval range defined by "interv" and the sign depends on "sc" and the source sign. [getmant_note]
Operation
FOR j := 0 to 1
	i := j*64
	IF k[j]
		dst[i+63:i] := GetNormalizedMantissa(a[i+63:i], sc, interv)
	ELSE
		dst[i+63:i] := src[i+63:i]
	FI
ENDFOR
dst[MAX:128] := 0