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• Gprs-reads-and-writes

Rr16

Read from word general-purpose registers

Signature

(rr16 reg x86) → *

Definitions and Theorems

Function: rr16$inline

(defun rr16$inline (reg x86)
  (declare (xargs :stobjs (x86)))
  (declare (type (unsigned-byte 4) reg))
  (n16 (the (signed-byte 64) (rgfi reg x86))))

Theorem: n16p-rr16

(defthm n16p-rr16
 (unsigned-byte-p 16 (rr16 reg x86))
 :rule-classes
 (:rewrite
  (:type-prescription
      :corollary (natp (rr16 reg x86))
      :hints
      (("Goal" :in-theory '(unsigned-byte-p integer-range-p natp))))
  (:linear
   :corollary (and (<= 0 (rr16 reg x86))
                   (< (rr16 reg x86) 65536))
   :hints
   (("Goal"
        :in-theory '(unsigned-byte-p integer-range-p (:e expt)))))))