_mm512_exp2a23_pd
Classification
AVX-512, Elementary Math Functions, CPUID Test: AVX512ER
Header File
Instruction
VEXP2PD zmm, zmm
Synopsis
_mm512_exp2a23_pd(__m512d a);
Description
Compute the approximate exponential value of 2 raised to the power of packed double-precision (64-bit) floating-point elements in "a", and store the results in "dst". The maximum relative error for this approximation is less than 2^-23.
Operation
FOR j := 0 to 7
i := j*64
dst[i+63:i] := POW(2.0, a[i+63:i])
ENDFOR
dst[MAX:512] := 0