A bit of Googling found this blog post[1] which lists a number of Crenshaw-based variants.
Two other quick finds: a more readable pdf version of the Crenshaw tutorial itself[2], and "an x86 compiler written in Ruby"[3] made by following along in the Crenshaw tutorial.
Two other quick finds: a more readable pdf version of the Crenshaw tutorial itself[2], and "an x86 compiler written in Ruby"[3] made by following along in the Crenshaw tutorial.
[1] http://blog.spacesocket.com/2011/06/24/lets-build-a-compiler...
[2] http://www.stack.nl/~marcov/compiler.pdf
[3] https://github.com/samsonjs/compiler