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:
Apr. 08, 2014
Filed:
Dec. 27, 2007
Doron Orenstien, Haifa, IL;
Zeev Sperber, Zichron Yaakov, IL;
Robert Valentine, Qirvat Tivon, IL;
Benny Eitan, Haifa, IL;
Doron Orenstien, Haifa, IL;
Zeev Sperber, Zichron Yaakov, IL;
Robert Valentine, Qirvat Tivon, IL;
Benny Eitan, Haifa, IL;
Intel Corporation, Santa Clara, CA (US);
Abstract
When legacy instructions, that can only operate on smaller registers, are mixed with new instructions in a processor with larger registers, special handling and architecture are used to prevent the legacy instructions from causing problems with the data in the upper portion of the registers, i.e., the portion that they cannot directly access. In some embodiments, the upper portion of the registers are saved to temporary storage while the legacy instructions are operating, and restored to the upper portion of the registers when the new instructions are operating. A special instruction may also be used to disable this save/restore operation if the new instruction are not going to use the upper part of the registers.