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Opcode

Opcode->rex

Get the rex field from a opcode.

Signature
(opcode->rex x) → rex
Arguments: x — Guard (opcode-p x).
Returns: rex — Type (rex-p rex).

This is an ordinary field accessor created by defprod.

Definitions and Theorems

Function: opcode->rex$inline

(defun opcode->rex$inline (x)
 (declare (xargs :guard (opcode-p x)))
 (declare (xargs :guard t))
 (let ((__function__ 'opcode->rex))
  (declare (ignorable __function__))
  (mbe
      :logic
      (b* ((x (and t x)))
        (rex-fix (std::prod-car (std::prod-car (std::prod-cdr x)))))
      :exec (std::prod-car (std::prod-car (std::prod-cdr x))))))

Theorem: rex-p-of-opcode->rex

(defthm rex-p-of-opcode->rex
  (b* ((rex (opcode->rex$inline x)))
    (rex-p rex))
  :rule-classes :rewrite)

Theorem: opcode->rex$inline-of-opcode-fix-x

(defthm opcode->rex$inline-of-opcode-fix-x
  (equal (opcode->rex$inline (opcode-fix x))
         (opcode->rex$inline x)))

Theorem: opcode->rex$inline-opcode-equiv-congruence-on-x

(defthm opcode->rex$inline-opcode-equiv-congruence-on-x
  (implies (opcode-equiv x x-equiv)
           (equal (opcode->rex$inline x)
                  (opcode->rex$inline x-equiv)))
  :rule-classes :congruence)