> I'd kill for a 128-bit architecture so a UUID compare would be a single instru... | Hacker News

Hacker News new | past | comments | ask | show | jobs | submit

login

mortehu on April 7, 2016 | parent | context | favorite | on: Design better databases

> I'd kill for a 128-bit architecture so a UUID compare would be a single instruction

Well, there's PCMPESTRI on Intel.

http://www.felixcloutier.com/x86/PCMPESTRI.html

jsmthrowaway on April 7, 2016 [–]

Yeah, I just said this in another comment, but SSE is my weak point; I stopped writing assembly and dealing with this stuff before SSE was even introduced.

That looks basically like what you need, though, yeah. Cool.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact