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