Cache accessing using a micro TAG
US8151055B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2009 |
| Grant date | Apr 3, 2012 |
| Priority date | — |
| Expiry date | Aug 29, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0864
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data processing apparatus includes a data processor, and a data store for storing a plurality of identifiers identifying a cache way in which a corresponding value from a set associative cache is stored. The plurality of identifiers corresponding to a plurality of values stored in consecutive addresses such that a data store stores identifiers for values stored in a region of said memory. Included is a current pointer store for pointing to a most recently accessed storage location in said data store and circuitry to determine an offset of an address of said cache access request to an immediately preceding cache access request. Lookup circuitry determines if said pointer is pointing to an address within said region and said data processor identifies said cache way from said stored identifier pointed to by said current pointer if it has a valid indicator associated therewith.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.