_mm512_mask_getmant_round_pd
Classification
AVX-512, Miscellaneous, CPUID Test: AVX512F
Header File
Instruction
VGETMANTPD zmm {k}, zmm, imm8 {sae}
Synopsis
_mm512_mask_getmant_round_pd(__m512d src, __mmask8 k, __m512d a, _MM_MANTISSA_NORM_ENUM interv, _MM_MANTISSA_SIGN_ENUM sc, int sae);
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][sae_note]
Operation
FOR j := 0 to 7
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:512] := 0