Bit Twiddling Hacks

Previous submissions:<p><a href="http://news.ycombinator.com/item?id=2019306" rel="nofollow">http://news.ycombinator.com/item?id=2019306</a><p><a href="http://news.ycombinator.com/item?id=1519869" rel="nofollow">http://news.ycombinator.com/item?id=1519869</a><p><a href="http://news.ycombinator.com/item?id=513935" rel="nofollow">http://news.ycombinator.com/item?id=513935</a> &#60;- A few comments<p><a href="http://news.ycombinator.com/item?id=86419" rel="nofollow">http://news.ycombinator.com/item?id=86419</a> &#60;- A few comments

Hank Warren's book, Hacker's Delight, ought to be on everyone's bookshelf. Also the venerable MIT TR, Hakmem.