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• Parse-expressions

Vl-build-range-select

Signature

(vl-build-range-select name indices range) → select-expr

Arguments

name — Guard (vl-scopeexpr-p name).

indices — Guard (vl-exprlist-p indices).

range — Guard (vl-erange-p range).

Returns

select-expr — Type (vl-expr-p select-expr).

Definitions and Theorems

Function: vl-build-range-select

(defun vl-build-range-select (name indices range)
 (declare (xargs :guard (and (vl-scopeexpr-p name)
                             (vl-exprlist-p indices)
                             (vl-erange-p range))))
 (let ((__function__ 'vl-build-range-select))
  (declare (ignorable __function__))
  (b* (((vl-erange range) range))
   (case
    range.type
    (:vl-index
      (make-vl-index
           :scope name
           :indices (append-without-guard indices (list range.left))
           :part (make-vl-partselect-none)))
    (:vl-colon
      (make-vl-index
           :scope name
           :indices indices
           :part
           (vl-range->partselect (make-vl-range :msb range.left
                                                :lsb range.right))))
    (:vl-pluscolon
     (make-vl-index :scope name
                    :indices indices
                    :part (vl-plusminus->partselect
                               (make-vl-plusminus :base range.left
                                                  :width range.right
                                                  :minusp nil))))
    (otherwise
     (make-vl-index :scope name
                    :indices indices
                    :part (vl-plusminus->partselect
                               (make-vl-plusminus :base range.left
                                                  :width range.right
                                                  :minusp t))))))))

Theorem: vl-expr-p-of-vl-build-range-select

(defthm vl-expr-p-of-vl-build-range-select
  (b* ((select-expr (vl-build-range-select name indices range)))
    (vl-expr-p select-expr))
  :rule-classes :rewrite)