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:
Jan. 10, 2017
Filed:
Sep. 10, 2014
Arm Limited, Cambridge, GB;
Chris Abernathy, Austin, TX (US);
Florent Begon, Sophia Antipolis, FR;
Michael Alan Filippo, Austin, TX (US);
ARM Limited, Cambridge, GB;
Abstract
A single threaded out-of-order processorincludes an architected register fileand a speculative register file. Speculative register allocation circuitryserves to allocate speculative registers for use in accordance with an allocation sequence and taken from a position determined by a tail point. Read suppression circuitryserves to maintain a boundary pointer corresponding to a position within the allocation sequence such that no speculative register more recently allocated within the allocation sequence than that corresponding to the boundary pointer can have a valid register value. The read suppression circuitryserves to suppress read operations for source operands lying within a read-suppression region delimited by the tail point and the boundary pointer. Separate boundary pointers may be maintained for different types of register values, such as integer register values and floating point register values.