Decoding multiple specifiers in a variable length instruction architecture
CA 1324671 C · Owner: Murray, John E. · Inventors: Fossum, Tryggve; Murray, John E.; Fite, David B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An instruction decoder for a pipelined data processing unit simultaneously decodes two source specifiers and one destination specifier. All three of the specifiers can be register specifiers in which the specified operand is the content of a specified register. Any one of the specifiers can be a complex specifier designating an index register, a base register and a, displacement. Any one of the source specifiers can specify short literal data. Data for locating the two source operands and the destination operand are transmitted over parallel buses to an execution unit so, that most instructions are executed at a rate of one instruction per clock cycle. The complex specifier can have a …
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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 November 23, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 23, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.