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Operand

Operand-kind

Get the kind (tag) of a operand structure.

Signature
(operand-kind x) → kind
Arguments: x — Guard (operandp x).

Definitions and Theorems

Function: operand-kind$inline

(defun operand-kind$inline (x)
  (declare (xargs :guard (operandp x)))
  (let ((__function__ 'operand-kind))
    (declare (ignorable __function__))
    (mbe :logic (cond ((or (atom x) (eq (car x) :literal))
                       :literal)
                      ((eq (car x) :register) :register)
                      ((eq (car x) :program) :program)
                      (t :selfcaller))
         :exec (car x))))

Theorem: operand-kind-possibilities

(defthm operand-kind-possibilities
  (or (equal (operand-kind x) :literal)
      (equal (operand-kind x) :register)
      (equal (operand-kind x) :program)
      (equal (operand-kind x) :selfcaller))
  :rule-classes
  ((:forward-chaining :trigger-terms ((operand-kind x)))))