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:
Jul. 18, 2000
Filed:
Dec. 28, 1995
Ofri Wechsler, Ramat Ishai, IL;
Intel Corporation, Santa Clara, CA (US);
Abstract
A method of processing instructions having register dependencies in a pipelined superscalar processor comprises the steps of fetching operands specified by a first instruction during a first pipestage, then computing address of a source operand for a second instruction so that the subsequent instruction can be processed without incurring data errors. A status bit of a destination register of the first instruction is checked during the decoding stages of the second instruction to determine whether the register is busy or free for use in performing the operation specified. In the case where the register is busy, processing of the subsequent instruction is temporarily frozen. In another situation, a result obtained by a first instruction is provided as a source operand for the second instruction so that the second instruction can be executed without delay.