2.6.  Routines

     Routines in ADL are represented by	(what else?) sixteen
bit  Routine  IDs.   The only operations allowed on routines
are calling them and  passing  them  to	 other	routines  as
parameters.   The  syntax  of  ADL  routines is	described in
Chapter	6.  The	routine	"START"	is predeclared	by  ADL	 and
must  be  defined  by  the  programmer	or execution will be
prematurely terminated.	 The Routines  "DWIMI"	and  "DWIMD"
are  also  predeclared	by  ADL	and should be defined by the
programmer.  DWIMI and DWIMD are called	under  circumstances
detailed in Chapter 4.