_mm512_fnmadd_round_pd
Classification
KNC, Arithmetic, CPUID Test: KNCNI
Header File
Instruction
VFNMADD132PD zmm, zmm, zmm {er}
Synopsis
_mm512_fnmadd_round_pd(__m512d a, __m512d b, __m512d c, int rounding);
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".
[round_note]
Operation
FOR j := 0 to 7
i := j*64
dst[i+63:i] := -(a[i+63:i] * b[i+63:i]) + c[i+63:i]
ENDFOR
dst[MAX:512] := 0