3 ms·
short and big "rep [sto|mov]s[bwdq]" hardware accelerated are very recent on AMD, I think you need at least a zen3.
by sylware 3y ago
short and big "rep [sto|mov]s[bwdq]" hardware accelerated are very recent on AMD, I think you need at least a zen3.
- brucehoult 3y agoThe instructions have been there since 1978. Nice if they're finally making them fast after 45 years, but most people's software has to run on older CPUs (and Intel CPUs) too.
- sylware 3y agoThis is exactly that, those were "accelerated" VERY recently. And 2 different versions: short and big memcpy/memset.