Source : Free On-Line Dictionary of Computing

SYMPL
     
         SYsteMs Programming Language.
     
        {CDC}'s derivative of {Jovial}.  SYMPL is a non-{re-entrant}
        {block structured} language with extensive {bit manipulation}
        facilities, which is linkable with {Fortran}.  Major parts of
        CDC systems during the 1970s were written in SYMPL.
     
        (1995-02-14)