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:
Sep. 18, 2012
Filed:
Apr. 08, 2009
Pradip Bose, Yorktown Heights, NY (US);
Alper Buyuktosunoglu, White Plains, NY (US);
Michael Stephen Floyd, Cedar Park, TX (US);
Dung Quoc Nguyen, Austin, TX (US);
Bruce Joseph Ronchetti, Austin, TX (US);
Pradip Bose, Yorktown Heights, NY (US);
Alper Buyuktosunoglu, White Plains, NY (US);
Michael Stephen Floyd, Cedar Park, TX (US);
Dung Quoc Nguyen, Austin, TX (US);
Bruce Joseph Ronchetti, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The illustrative embodiments described herein provide a computer-implemented method, apparatus, and a system for managing instructions. A load/store unit receives a first instruction at a port. The load/store unit rejects the first instruction in response to determining that the first instruction has a first reject condition. Then, the instruction sequencing unit activates a first bit in response to the load/store unit rejection the first instruction. The instruction sequencing unit blocks the first instruction from reissue while the first bit is activated. The processor unit determines a class of rejection of the first instruction. The instruction sequencing unit starts a timer. The length of the timer is based on the class of rejection of the first instruction. The instruction sequencing unit resets the first bit in response to the timer expiring. The instruction sequencing unit allows the first instruction to become eligible for reissue in response to resetting the first bit.