ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,229,561, issued on Feb. 18, was assigned to Apple Inc. (Cupertino, Calif.).

"Processing of data synchronization barrier instructions" was invented by Madhu Sudan Hari (Manor, Texas), Mridul Agarwal (Saratoga, Calif.), Kulin N Kothari (Cupertino, Calif.), John D Pape (Cedar Park, Texas) and Niket K Choudhary (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system may include multiple processors. One of the processors may receive an indication of a data synchronization barrier (DSB) instruction in another processor that follows a translation look-ahead buffer invalidate (TLBI) instruction to invalidate an entry of a translation look-ahea...