_mm512_mask_fmsub_round_pd
Classification
KNC, Arithmetic, CPUID Test: KNCNI
Header File
immintrin.h
Instruction
VFMSUB132PD zmm {k}, zmm, zmm {er}
Synopsis
 _mm512_mask_fmsub_round_pd(__m512d a, __mmask8 k, __m512d b, __m512d c, int rounding);
Description
Multiply packed double-precision (64-bit) floating-point elements in "a" and "b", subtract packed elements in "c" from the intermediate result, and store the results in "dst" using writemask "k" (elements are copied from "a" when the corresponding mask bit is not set). [round_note]
Operation
FOR j := 0 to 7
	i := j*64
	IF k[j]
		dst[i+63:i] := (a[i+63:i] * b[i+63:i]) - c[i+63:i]
	ELSE
		dst[i+63:i] := a[i+63:i]
	FI
ENDFOR
dst[MAX:512] := 0