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Opcode

Opcode->vex

Get the vex field from a opcode.

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

This is an ordinary field accessor created by defprod.

Definitions and Theorems

Function: opcode->vex$inline

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

Theorem: maybe-vex-p-of-opcode->vex

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

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

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

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

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