The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 17, 2015
Filed:
Oct. 22, 2013
International Business Machines Corporation, Armonk, NY (US);
Brian D. Barrick, Pflugerville, TX (US);
Barry W. Krumm, Poughkeepsie, NY (US);
James R. Mitchell, Poughkeepsie, NY (US);
Bradley Nelson, Austin, TX (US);
Aaron Tsai, Poughkeepsie, NY (US);
Chung-Lung K. Shum, Wappingers Falls, NY (US);
Michael H. Wood, Poughkeepsie, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Embodiments relate to loading data in a pipelined microprocessor. An aspect includes issuing a load request that comprises a load address requiring at least one block of data the same size as a largest contiguous granularity of data returned from a cache. Another aspect includes determining that the load address matches at least one block address. Another aspect includes, based on determining that there is an address match, reading a data block from a buffer register and sending the data to satisfy the load request; comparing a unique set id of the data block to the set id of the matching address after sending the data block; based on determining that there is a set id match, continuing the load request, or, based on determining that there is not a set id match, setting a store-forwarding state of the matching address to no store-forwarding and rejecting the load request.