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Feat-base

Feat-base-kind

Get the kind (tag) of a feat-base structure.

Signature
(feat-base-kind x) → kind
Arguments: x — Guard (feat-basep x).

Definitions and Theorems

Function: feat-base-kind$inline

(defun feat-base-kind$inline (x)
  (declare (xargs :guard (feat-basep x)))
  (let ((__function__ 'feat-base-kind))
    (declare (ignorable __function__))
    (mbe :logic (cond ((or (atom x) (eq (car x) :rv32i))
                       :rv32i)
                      ((eq (car x) :rv64i) :rv64i)
                      ((eq (car x) :rv32e) :rv32e)
                      (t :rv64e))
         :exec (car x))))

Theorem: feat-base-kind-possibilities

(defthm feat-base-kind-possibilities
  (or (equal (feat-base-kind x) :rv32i)
      (equal (feat-base-kind x) :rv64i)
      (equal (feat-base-kind x) :rv32e)
      (equal (feat-base-kind x) :rv64e))
  :rule-classes
  ((:forward-chaining :trigger-terms ((feat-base-kind x)))))