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:
Dec. 22, 1998
Filed:
Dec. 19, 1995
Derrick Lin, Foster City, CA (US);
Romamohan R Vakkalagadda, Fremont, CA (US);
Andrew F Glew, Hillsboro, OR (US);
Larry M Mennemeier, Boulder Creek, CA (US);
Alexander D Peleg, Haifa, IL;
David Bistry, Cupertino, CA (US);
Millind Mittal, South San Francisco, CA (US);
Carole Dulong, Saratoga, CA (US);
Eiichi Kowashi, Ibaraki, JP;
Benny Eitan, Haifa, IL;
Intel Corporation, Santa Clara, CA (US);
Abstract
A method and apparatus for executing floating point and packed data instructions using a single physical register file that is aliased. According to one aspect of the invention, a processor is provided that includes a decode unit, a mapping unit, and a storage unit. The decode unit is configured to decode instructions and their operands from at least one instruction set including at least a first and second set of instructions. The storage unit includes a physical register file. The mapping unit is configured to map operands used by the first set of instructions to the physical register file in a stack referenced manner. In addition, the mapping unit is configured to map operands used by the second set of instructions to the same physical register file in a non-stack reference manner.