Patent · US Active

Method and apparatus for register renaming

US7769986B2 · kind B2 · utility

7Cited by

5References

16Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Christopher M. Abernathy · Austin, US
William E. Burky · Austin, US
Jens Leenstra · Nagold, DE
Nicolas Maeding · Holzgerlingen, DE

Key dates

Filing date	May 1, 2007
Grant date	Aug 3, 2010
Priority date	—
Expiry date	Sep 30, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG06F9/3858
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A method and apparatus for register renaming are provides in the illustrative embodiments. A mapper receives a request for a data in a logical register. The mapper searches an in-flight map table and a set of architected map tables for the data in the logical register. The mapper identifies an entry in one of the in-flight map table and an architected map table in the set of architected map tables that corresponds with the logical register in the request. The mapper returns a location of a physical register, which holds the requested data.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.