Operating method for a processing system under control of a multi-tasking time slice operating system.

摘要

A method of operating a processing system under the control of a multi-tasking time slice operating system to provide continuous processing of multiple tasks using a variable time slice size, the processing system providing for real-time operation of a video display, the display operation defining a video frame refresh time, comprises the steps of: determining a desired system frame operating time dependent upon said video frame refresh time; preselecting an initial time slice time size; operating a system frame by sequentially enabling each of the multiple tasks to perform processing functions during the system frame, the maximum time allotted for each task being defined by the time slice time size; determining the elapsed system frame time; resetting the time slice time size as by increasing the time size if the determined elapsed time is less than the desired system frame time, or by decreasing the time size if the determined elapsed time is greater than the desired system frame time; and continually repeating steps c-e so that the time slice time size is varied as necessary to maintain the actual system frame time close to the desired system frame time. The method may be used to proved real-time operation of video displays used in an automatic bowling center system.