The pizza project aims to implement an interpreter for an assembler language. The spec will be uploaded in a few days, but for now here is an outline of the project.
Because it sounds like fun, and is unique.
The official wiki can be found here, it contains the specification of pizza and slice-lang.
pizza is under active development, to run the all tests for the current build simply run,
$ make test
If you wish to test by unit instead, see below.
$ make testlexer