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==External links== * [[Wikibooks:360 Assembly/Branch Instructions|Fast table lookup using input character as index for branch table]] * [https://web.archive.org/web/20120414190621/http://webster.cs.ucr.edu/AoA/Windows/HTML/TableLookups.html Art of Assembly: Calculation via Table Lookups] * [http://graphics.stanford.edu/~seander/bithacks.html#CountBitsSetTable "Bit Twiddling Hacks" (includes lookup tables)] By Sean Eron Anderson of [[Stanford University]] * [https://web.archive.org/web/20120831094028/http://apl.jhu.edu/~paulmac/c%2B%2B-memoization.html Memoization in C++] by Paul McNamee, [[Johns Hopkins University]] showing savings * [https://books.google.com/books?id=gJrmszNHQV4C&dq=beautiful+code+%22population+count%22&pg=PT169 "The Quest for an Accelerated Population Count"] by Henry S. Warren Jr. [[Category:Arrays]] [[Category:Associative arrays]] [[Category:Computer performance]] [[Category:Software optimization]] [[Category:Articles with example C code]]
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