A block diagram of a 4-bit <a href="https://en.wikipedia.org/wiki/carry-lookahead_adder" class="extiw" title="en:carry-lookahead adder">carry-lookahead adder</a>.
<a href="//commons.wikimedia.org/wiki/User:Inductiveload" title="User:Inductiveload">Inductiveload</a>
2009-05-28
<span class="int-own-work" lang="en">Own work</span>