_mm512_mask3_fmsubadd_ps
Classification
AVX-512, Arithmetic, CPUID Test: AVX512F
Header File
immintrin.h
Instruction
VFMSUBADD132PS zmm {k}, zmm, zmm
Synopsis
 _mm512_mask3_fmsubadd_ps(__m512 a, __m512 b, __m512 c, __mmask16 k);
Description
Multiply packed single-precision (32-bit) floating-point elements in "a" and "b", alternatively subtract and add packed elements in "c" from/to the intermediate result, and store the results in "dst" using writemask "k" (elements are copied from "c" when the corresponding mask bit is not set).
Operation
FOR j := 0 to 15
	i := j*32
	IF k[j]
		IF ((j & 1) == 0)
			dst[i+31:i] := (a[i+31:i] * b[i+31:i]) + c[i+31:i]
		ELSE
			dst[i+31:i] := (a[i+31:i] * b[i+31:i]) - c[i+31:i]
		FI
	ELSE
		dst[i+31:i] := c[i+31:i]
	FI
ENDFOR
dst[MAX:512] := 0