The Free On-line Dictionary of Computing (19 January 2023):

USAModSim

    United States Army ModSim compiler.

   Version 1.0 runs on SPARC/SunOS, Silicon Graphics,
   MS-DOS.

   (ftp://max.cecer.army.mil/ftp/isle).

   E-mail: Charles Herring .

   (1993-12-29)