The folks at the Viewpoints Research Institute created a DSL to describe the TCP/IP stack using an ASCII diagram: http://www.moserware.com/2008/04/towards-moore

The folks at the Viewpoints Research Institute created a DSL to describe the TCP/IP stack using an ASCII diagram: http://www.moserware.com/2008/04/towards-moores-law-software-part-3-of-3.html http://www.moserware.com/2008/04/towards-moores-law-software... Befunge is also a sort of control flow diagram: http://en.wikipedia.org/wiki/Befunge http://en.wikipedia.org/wiki/Befunge