_mm_maskz_fnmadd_pd
Classification
AVX-512, Arithmetic, CPUID Test: AVX512F
Header File
immintrin.h
Instruction
VFNMADD132PD xmm {z}, xmm, xmm
Synopsis
 _mm_maskz_fnmadd_pd(__mmask8 k, __m128d a, __m128d b, __m128d c);
Description
Multiply packed double-precision (64-bit) floating-point elements in "a" and "b", add the negated intermediate result to packed elements in "c", and store the results in "dst" using zeromask "k" (elements are zeroed out when the corresponding mask bit is not set).
Operation
FOR j := 0 to 1
	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] := 0
	FI
ENDFOR	
dst[MAX:128] := 0