exMARS combines the latest advance in corewar simulation technology, with proactive performance optimizations. Actually exMARS is a redcode simulator, just like exhaust and pMARS. In fact, I have shamelessly taken sourcecode from pMARS, exhaust, some ideas from qMars, a shot of optimizations, shook everything well, and garnished everything with a high level interface for Ruby. The resulting program has the following main features: * Uses the parser from pMARS, so no previous parsing is neccessary. At first this was my main motivation for exMARS. * Speed: 50% faster than pmars on a Pentium III, and often more than twice as fast than pmars on a Pentium 4 (using gcc 3.3.1, and the same compiler options). * Rewritten the code in a more object oriented way, which allows different Mars at the same time in the same program, it should also be thread save. NOTE: This is only Ruby interface part. To install exmars use games/exmars port. Author: Martin Ankerl WWW: http://corewar.co.uk/ankerl/exmars.htm