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Opcode-maps

Addressing-method-code-p

Codes for Operand Addressing Method; See Intel Vol. 2, Appendix A.2.1

This is an ordinary defenum.

Function: addressing-method-code-p

(defun addressing-method-code-p (x)
  (declare (xargs :guard t))
  (or (eq x 'a)
      (eq x 'b)
      (eq x 'c)
      (eq x 'd)
      (eq x 'e)
      (eq x 'f)
      (eq x 'g)
      (eq x 'h)
      (eq x 'i)
      (eq x 'j)
      (eq x 'rb)
      (eq x 'mb)
      (eq x 'k-reg)
      (eq x 'k-vex)
      (eq x 'k-r/m)
      (eq x 'k-evex)
      (eq x 'l)
      (eq x 'm)
      (eq x 'n)
      (eq x 'o)
      (eq x 'p)
      (eq x 'q)
      (eq x 'r)
      (eq x 's)
      (eq x 'u)
      (eq x 'v)
      (eq x 'w)
      (eq x 'x)
      (eq x 'y)))

Theorem: type-when-addressing-method-code-p

(defthm type-when-addressing-method-code-p
  (implies (addressing-method-code-p x)
           (if (symbolp x)
               (if (not (equal x 't))
                   (not (equal x 'nil))
                 'nil)
             'nil))
  :rule-classes :compound-recognizer)