boxed comments

boxed comments n.  Comments (explanatory notes attached to
   program instructions) that occupy several lines by themselves; so
   called because in assembler and C code they are often surrounded by
   a box in a style something like this:

     /*************************************************
      *
      * This is a boxed comment in C style
      *
      *************************************************/

   Common variants of this style omit the asterisks in column 2 or add
   a matching row of asterisks closing the right side of the box.  The
   sparest variant omits all but the comment delimiters themselves;
   the `box' is implied.  Oppose {winged comments}.