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.
PR: ports/83920
Submitted by: Alejandro Pulver (alejandro at varnet.biz)