1A Processor: Control, Administrative, and Utility Software

Control, administrative, and utility software has been developed for the 1A Processor that simplifies the task of using input/output devices, managing system time and memory resources, providing control over the many program interfaces that exist, and finally providing an interactive facility that permits analysis of system behavior. Figure 1 provides a high-level block diagram of the manner in which the control, administrative, and utility features interact and fit into the software system. A maintenance control structure has been provided with the 1A Processor to control system time and memory resources used by maintenance programs. These programs are executed concurrently with call processing. This facility allocates the resources associated with the maintenance function based on a priority arrangement, provides initialization between disjoint time intervals of program execution, and also provides a collection of general-purpose control functions. A standard interface provides access to these functions as well as to other control 237