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. 10, 2022
Filed:
Aug. 21, 2019
Arm Limited, Cambridge, GB;
Michael David Achenbach, Austin, TX (US);
Robert Greg McDonald, Austin, TX (US);
Nicholas Andrew Pfister, Austin, TX (US);
Kelvin Domnic Goveas, Austin, TX (US);
Michael Filippo, Driftwood, TX (US);
. Abhishek Raja, Austin, TX (US);
Zachary Allen Kingsbury, Austin, TX (US);
Arm Limited, Cambridge, GB;
Abstract
An apparatus provides an issue queue having a first section and a second section. Each entry in each section stores operation information identifying an operation to be performed. Allocation circuitry allocates each item of received operation information to an entry in the first section or the second section. Selection circuitry selects from the issue queue, during a given selection iteration, an operation from amongst the operations whose required source operands are available. Availability update circuitry updates source operand availability for each entry whose operation information identifies as a source operand a destination operand of the selected operation in the given selection iteration. A deferral mechanism inhibits from selection, during a next selection iteration, any operation associated with an entry in the second section whose source operands are now available due to that operation having as a source operand the destination operand of the selected operation in the given selection iteration.