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Expired Canadian patentCanada

High performance speculative misaligned load operations

CA 2260308 C · Owner: Tung, Shih-Hsiung Stephen · Inventors: Ray, David Scott; Williamson, Barry Duane; Tung, Shih-Hsiung Stephen

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Abstract From the Canadian patent

One aspect of the invention relates to a method for processing load instructions in a superscalar, processor having a data cache and a register file. In one embodiment the , method includes the steps, of dispatching a misaligned load instruction to access a block of data that is misaligned in the cache;, while continuing to dispatch aligned instructions: generating a first access and a final access to the, cache in response to the misaligned load instruction; storing data retrieved from the first access until, data from the final access is available; reassembling the data from the first and final access into the, order required by the load instruction; and storing the re-assembled data …

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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

  • Filed January 25, 1999 and granted October 9, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 25, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 25, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 25, 1999
GrantedOctober 9, 2001
Term endedJanuary 25, 2019
Patent numberCA 2260308 C
Classification (IPC)G06F9/30 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedJan 25, 1999Patent grantedOct 9, 2001Term endedJan 25, 2019

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.