Re: ALU Help

Posted by snowkel on Sep 14, 2016; 5:41am
URL: http://nand2tetris-questions-and-answers-forum.52.s1.nabble.com/ALU-Help-tp4030242p4030250.html

So I understand that it's using the logic gate AND but I'm a bit lost on what exactly 0100 AND 1111 mean. Should I be thinking about it like this?
http://imgur.com/a/TinNm
If so, I still don't understand how 0100 AND 1111 gives us the output of just x. Apologies if I'm not seeing the obvious.