(* new interface KRML *)
UNSAFE INTERFACE RTStackRep;

(* This interface is marked as unsafe because mucking with the
   variables defined herein may damage the run-time system. *)

VAR
  currStackLow: ADDRESS;
  currStackHigh: ADDRESS;
  doStackOverflowChecks: BOOLEAN := FALSE;
  (* set to TRUE as soon as currStackLow and currStackHigh have
     been assigned their initial values (in main body of RTStackKRML
     module) *)

END RTStackRep.