_blsi_u64
Classification
Other, Bit Manipulation, CPUID Test: BMI1
Header File
immintrin.h
Instruction
BLSI r64, r64
Synopsis
 _blsi_u64(unsigned __int64 a);
Description
Extract the lowest set bit from unsigned 64-bit integer "a" and set the corresponding bit in "dst". All other bits in "dst" are zeroed, and all bits are zeroed if no bits are set in "a".
Operation
dst := (-a) AND a