_mm_fnmsub_ph
Classification
AVX-512, Arithmetic, CPUID Test: AVX512_FP16
Header File
Instruction
VFNMSUB132PH xmm, xmm, xmm
Synopsis
_mm_fnmsub_ph(__m128h a, __m128h b, __m128h c);
Description
Multiply packed half-precision (16-bit) floating-point elements in "a" and "b", subtract packed elements in "c" from the negated intermediate result, and store the results in "dst".
Operation
FOR j := 0 to 7
dst.fp16[j] := -(a.fp16[j] * b.fp16[j]) - c.fp16[j]
ENDFOR
dst[MAX:128] := 0