I'm getting interested in this stuff. I haven't looked up any standard circuits, but I'm fairly certain my adder could be realized with fewer NANDs. I also didn't take any care for execution order, so there's some odd results before it all gets sorted. At first I was going to use [sig~] and [env~] at all the inputs and outputs, but I don't know that it would matter.
Hmm, now I'm looking at the logical operators already present. Oh well...
-Chuckk