Primitive E module for a kind of nmos gate.
We use this to implement vl2014::*vl-1-bit-nmos*.
Definition: *esim-nmos*
(defconst *esim-nmos* '(:n *esim-nmos* :x (:out ((|out| zif |ctrl| |data| (z)))) :i ((|data|) (|ctrl|)) :o ((|out|))))
