Apparatus and method for synchronization of arithmetic exceptions in central processing units having pipelined execution units simultaneously executing instructions
CA 1304823 C · Owner: Witek, Richard T. · Inventors: Orbits, David A.; Cutler, David N.; Cardoza, Wayne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a data processing system in which the component central processing units can have a plurality of parallel pipelined execution units an, instruction, and apparatus for implementation of the instruction, are provided which facilitates the synchronization of arithmetic exceptions with the context environment in which the instruction should execute. The current invention permits the central processing unit to complete instructions currently being processed by the execution units but prevents, further instructions from being initiated until all currently executing instructions have been completed and all outstanding exception conditions have been resolved. After all the instructions preceding …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted July 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 2009.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.