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:
May. 24, 2005
Filed:
Mar. 31, 1998
William C. Alexander, Iii, Hillsboro, OR (US);
Shreekant S. Thakkar, Portland, OR (US);
Patrice L. Roussel, Portland, OR (US);
Thomas Huff, Portland, OR (US);
Bryant E. Bigbee, Aloha, OR (US);
Stephen A. Fischer, Shingle Springs, CA (US);
William C. Alexander, III, Hillsboro, OR (US);
Shreekant S. Thakkar, Portland, OR (US);
Patrice L. Roussel, Portland, OR (US);
Thomas Huff, Portland, OR (US);
Bryant E. Bigbee, Aloha, OR (US);
Stephen A. Fischer, Shingle Springs, CA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
The present invention discloses a method and apparatus for saving and restoring registers. A single instruction is decoded. The single instruction moves contents of a plurality of registers associated with a functional unit in a processor to a memory; the processor operates under a plurality of operational modes and operand sizes. The single instruction arranges the contents in the memory according to a predetermined format into a plurality of groups, each group is aligned at an address boundary which corresponds to a multiple of 2bytes. The predetermined format is constant for the plurality of operational modes and operand sizes. The single instruction retains the contents of the plurality of registers after moving.