RWBROOK interface functions: System Initialization/Deinitialization.
 
subroutine XYZInit
 
Prior to everything, the RWBROOK interface must be initialized.
The best way to do that is to place the following call:
 
call XYZInit
 
somewhere on the top of your application.
 
NOTE 1: without initialization RWBROOK will not function.  
NOTE 2: RWBROOK may be initialized  only once. Repeated
initialization will cause memory fault.