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Feat-bits

Feat-bits-kind

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

Signature
(feat-bits-kind x) → kind
Arguments: x — Guard (feat-bitsp x).

Definitions and Theorems

Function: feat-bits-kind$inline

(defun feat-bits-kind$inline (x)
  (declare (xargs :guard (feat-bitsp x)))
  (let ((__function__ 'feat-bits-kind))
    (declare (ignorable __function__))
    (mbe :logic (cond ((or (atom x) (eq (car x) :|32|)) :|32|)
                      (t :|64|))
         :exec (car x))))

Theorem: feat-bits-kind-possibilities

(defthm feat-bits-kind-possibilities
  (or (equal (feat-bits-kind x) :|32|)
      (equal (feat-bits-kind x) :|64|))
  :rule-classes
  ((:forward-chaining :trigger-terms ((feat-bits-kind x)))))