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Inst

Inst->opcode

Get the opcode field from a inst.

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

This is an ordinary field accessor created by defprod.

Definitions and Theorems

Function: inst->opcode$inline

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

Theorem: strict-opcode-p-of-inst->opcode

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

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

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

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

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