Re: Special XOR for half-adder and full-adder

Posted by cadet1620 on Mar 02, 2016; 8:27pm
URL: http://nand2tetris-questions-and-answers-forum.52.s1.nabble.com/Special-XOR-for-half-adder-and-full-adder-tp4029600p4029609.html

Great to see another old-timer on the forum.

Feel free to jump in (please!) and answer people's questions from your experience.

There's another book by Maxfield and Brown, "How Computers do Math", that you might find interesting.
    http://www.clivemaxfield.com/diycalculator/

(I haven't seen Bebop Bytes Back yet, should be in my mailbox any day now...)

Carry look ahead, of some form, is usually used with adders. I understand that. Usually where some kind of balance is struck between group size, acceleration of carry, propagation delays, etc. Non-trivial, in practice. But fun.

There are some forum threads on various adder designs
    About carry lookahead adder
    Carry Lookahead Implementation
    Carry Select Adder (includes Carry Bypass Adder)

--Mark