Recognizer for sdm-instruction-table-entry structures.
(sdm-instruction-table-entry-p x) → *
Theorem: consp-when-sdm-instruction-table-entry-p
(defthm consp-when-sdm-instruction-table-entry-p (implies (sdm-instruction-table-entry-p x) (consp x)) :rule-classes :compound-recognizer)