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• Vl-print-nat

Vl-print-int-main

Signature

(vl-print-int-main n &key (ps 'ps)) → ps

Arguments

n — Guard (integerp n).

Definitions and Theorems

Function: vl-print-int-main-fn

(defun
 vl-print-int-main-fn (n ps)
 (declare (xargs :stobjs (ps)))
 (declare (xargs :guard (integerp n)))
 (declare (type signed-byte n))
 (declare (xargs :split-types t))
 (let
  ((__function__ 'vl-print-int-main))
  (declare (ignorable __function__))
  (b*
   ((n (lifix n))
    (ps
     (if
      (< n 0)
      (vl-ps-seq
          (vl-ps-update-rchars (cons #\- (vl-ps->rchars)))
          (vl-ps-update-col (the unsigned-byte (+ 1 (vl-ps->col)))))
      ps))
    (n (abs n))
    ((when (eql n 0))
     (vl-ps-seq
         (vl-ps-update-rchars (cons #\0 (vl-ps->rchars)))
         (vl-ps-update-col (the unsigned-byte (+ 1 (vl-ps->col))))))
    ((mv rchars col)
     (vl-print-natchars-aux n (vl-ps->rchars)
                            (vl-ps->col))))
   (vl-ps-seq (vl-ps-update-rchars rchars)
              (vl-ps-update-col col)))))

Theorem: vl-print-int-main-fn-of-ifix-n

(defthm vl-print-int-main-fn-of-ifix-n
        (equal (vl-print-int-main-fn (ifix n) ps)
               (vl-print-int-main-fn n ps)))

Theorem: vl-print-int-main-fn-int-equiv-congruence-on-n

(defthm vl-print-int-main-fn-int-equiv-congruence-on-n
        (implies (acl2::int-equiv n n-equiv)
                 (equal (vl-print-int-main-fn n ps)
                        (vl-print-int-main-fn n-equiv ps)))
        :rule-classes :congruence)