_mm_fmsubadd_ps
Classification
AVX_ALL, Arithmetic, CPUID Test: FMA
Header File
immintrin.h
Instruction
VFMSUBADD132PS xmm, xmm, xmm
Synopsis
 _mm_fmsubadd_ps(__m128 a, __m128 b, __m128 c);
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".
Operation
FOR j := 0 to 3
	i := j*32
	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
ENDFOR
dst[MAX:128] := 0