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:
Mar. 08, 2016
Filed:
Nov. 30, 2011
Ramesh B. Gunna, San Jose, CA (US);
Peter J. Bannon, Concord, MA (US);
Rajat Goel, Saratoga, CA (US);
Ramesh B. Gunna, San Jose, CA (US);
Peter J. Bannon, Concord, MA (US);
Rajat Goel, Saratoga, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
An apparatus and method for avoiding bubbles and maintaining a maximum instruction throughput rate when cracking microcode instructions. A lookahead pointer scans the newest entries of a dispatch queue for microcode instructions. A detected microcode instruction is conveyed to a microcode engine to be cracked into a sequence of micro-ops. Then, the sequence of micro-ops is placed in a queue, and when the original microcode instruction entry in the dispatch queue is selected for dispatch, the sequence of micro-ops is dispatched to the next stage of the processor pipeline.