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• Sv::vl-expr.lisp

Vl-value-to-4vec

Signature

(vl-value-to-4vec x) → (mv err val)

Arguments

x — Guard (vl-value-p x).

Returns

err — Type (iff (vl-msg-p err) err).

val — Type (sv::4vec-p val).

Definitions and Theorems

Function: vl-value-to-4vec

(defun vl-value-to-4vec (x)
 (declare (xargs :guard (vl-value-p x)))
 (let ((__function__ 'vl-value-to-4vec))
  (declare (ignorable __function__))
  (vl-value-case
      x
      :vl-constint (mv nil
                       (4vec-extend x.origsign
                                    x.origwidth (sv::2vec x.value)))
      :vl-weirdint
      (mv nil
          (4vec-extend x.origsign (len x.bits)
                       (vl-bitlist->4vec (vl-weirdint->bits x))))
      :vl-extint (mv nil
                     (case x.value (:vl-1val (sv::2vec -1))
                           (:vl-0val (sv::2vec 0))
                           (:vl-xval (sv::4vec-x))
                           (:vl-zval (sv::4vec-z))))
      :vl-string
      (mv nil
          (sv::2vec (vl-string->bits x.value (length x.value))))
      :otherwise (mv (vmsg "Unsupported value type: ~a0"
                           (make-vl-literal :val x))
                     (sv::4vec-x)))))

Theorem: return-type-of-vl-value-to-4vec.err

(defthm return-type-of-vl-value-to-4vec.err
  (b* (((mv ?err ?val) (vl-value-to-4vec x)))
    (iff (vl-msg-p err) err))
  :rule-classes :rewrite)

Theorem: 4vec-p-of-vl-value-to-4vec.val

(defthm 4vec-p-of-vl-value-to-4vec.val
  (b* (((mv ?err ?val) (vl-value-to-4vec x)))
    (sv::4vec-p val))
  :rule-classes :rewrite)

Theorem: vl-value-to-4vec-of-vl-value-fix-x

(defthm vl-value-to-4vec-of-vl-value-fix-x
  (equal (vl-value-to-4vec (vl-value-fix x))
         (vl-value-to-4vec x)))

Theorem: vl-value-to-4vec-vl-value-equiv-congruence-on-x

(defthm vl-value-to-4vec-vl-value-equiv-congruence-on-x
  (implies (vl-value-equiv x x-equiv)
           (equal (vl-value-to-4vec x)
                  (vl-value-to-4vec x-equiv)))
  :rule-classes :congruence)