5 ms·
The Magic of XOR
- codespair 9y agoWhen I read the swapping capability... mind -> blown.
- filereaper 9y agoIf anyone else is looking for a compendium of these sorts of nifty tricks, I highly recommend Hackers Delight by Hank Warren. Its a lovely book to have when you're stuck in tight corners.
- tmccrmck 9y agoSeconded. I doubt there's a person in the world who couldn't learn something from Hacker's Delight.
- tinus_hn 9y agoIt's nifty alright but be aware that are just about no situations where these kinds of tricks are useful. It's clever but slower, more unclear and uses more instructions which also is slower.
- hexane360 9y agoSwapping doesn't just work with XORs: http://chris-taylor.github.io/blog/2013/02/25/xor-trick/ http://chris-taylor.github.io/blog/2013/02/25/xor-trick/
- anon_lastname 9y agoXor is amazing. Look into it and you'll find it shits out fractals like they are nothing