anchor.diff:           (setf (aref vec i) (load-integer stream)))
          vec))
       (#.+llf-ratio+
  -     (/ (load-integer stream)
  -        (load-integer stream)))
  +     (let* ((num (load-integer stream))
  +            (denom (load-integer stream)))
  +       (/ num denom)))
       (#.+llf-array+
        (load-llf-array stream stack))
       (#.+llf-funcall+
  
positive.code:                      (gethash id omap)
                     (unless value-p
                       (error "Unknown backlink ID ~D." id))
                     (vector-push-extend value stack))))
                (#.+llf-add-backlink+
                 (let ((id (load-integer stream)))
  
negative.code:                    (declare (ignore existing-value))
                     (when existing-value-p
                       (error "Duplicate backlink ID ~D." id)))
                   (when *noisy-load*
                     (format t "ADD-BACKLINK ~S~%" id))
                   (setf (gethash id omap) (vector-pop stack))))
                (t (let ((value (multiple-value-list (load-one-object command stream stack))))
                     (when value
  