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:
Feb. 24, 2009
Filed:
Apr. 28, 2000
Nicholas J. Richardson, San Diego, CA (US);
Lun Bin Huang, San Diego, CA (US);
Nicholas J. Richardson, San Diego, CA (US);
Lun Bin Huang, San Diego, CA (US);
STMicroelectronics, Inc., Carrollton, TX (US);
Abstract
There is disclosed a data processor comprising 1) a register stack comprising a plurality of architectural registers that stores operands required by instructions executed by the data processor; 2) an instruction execution pipeline comprising N processing stages, where each processing stage performs one of a plurality of execution steps associated with a pending instruction being executed by the instruction execution pipeline; and 3) at least one mapping register associated with at least one of the N processing stages, wherein the at least one mapping register stores mapping data that may be used to determine a physical register associated with an architectural stack register accessed by the pending instruction.