> With version 0.3.0 RHDL moves a little bit closer to being an actual,
> usable Hardware Description Language.  Most notably, design hierarchy is
> now supported and a 'wait' statement has been added so that processes can
> be suspended until a condition becomes true.

So now there are two Ruby hardware definition languages

http://web.comlab.ox.ac.uk/oucl/work/geraint.jones/ruby/

Mikkel