Block a user
Move some stuff to brlib: bitops, etc...
Add arch dependencies, and maybe self-detect
move stuff from brchess to brlib, add few bit functions
test x86_64 extensions performance
XOP was abandoned, forget about it. However, I started to make some tests before understanding this is a dead-end:
#include <stdio.h>
#include <stdalign.h>
#include <x86intrin.h>
t…