/LISTING

  The /LISTING qualifier causes the compiler  to  create  a  source  listing
  file.

  The format of the /LISTING qualifier is as follows:

     /[NO]LISTING[=file-spec]

  To create a listing file with an explicit file specification, you must use
  the  /LISTING  qualifier in the form /LISTING = file-spec.  Otherwise, the
  listing file has the same name as its corresponding source file and a file
  type  of  .LIS.   All  other  file  specification attributes depend on the
  placement of the qualifier in the command.

  Note that the /LISTING qualifier only controls whether or not the compiler
  produces  a listing file.  The /SHOW qualifier controls which parts of the
  listing are produced.

  The default is /NOLISTING from a terminal, and /LISTING in batch mode.