Re: Number of NAND gates in the HACK computer

Posted by Renslay on Feb 17, 2025; 10:35am
URL: http://nand2tetris-questions-and-answers-forum.52.s1.nabble.com/Number-of-NAND-gates-in-the-HACK-computer-tp4038281p4038360.html

WBahn wrote

In practice, various designs such as fast-carry and carry-lookahead are used to speed things up, but the concepts behind these approaches are not the easiest to grasp.

This reminds me that independently from the N2T course, I implemented a 4 bit carry-lookahead adder (CLA) in logisim from basic chips (and/or/xor), which I was able to hierarchically expand to a 16 bit CLA, and from that a 64 bit CLA. It was fun, and I greatly recommend for anyone as a practice! Understanding how CLAs work was a marvel on its own for me. :)