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:
Dec. 16, 2025
Filed:
Dec. 07, 2023
Apple Inc., Cupertino, CA (US);
Deepankar Duggal, Sunnyvale, CA (US);
Richard F. Russo, San Jose, CA (US);
Haoyan Jia, Ellicott City, MD (US);
Apple Inc., Cupertino, CA (US);
Abstract
Techniques are disclosed relating to physical register sharing. In some embodiments, a processor includes, in a register file, physical registers of a largest architected register size for a given operand type defined in an instruction set architecture (ISA). A register rename circuit of the processor is configured to assign a first physical register to an architected register of the largest architected register size. The register rename circuit is also configured to assign a first portion of a second physical register to a second ISA-defined architected register of a smaller size than the largest architected register size and a second portion of the second physical register to a third ISA-defined architected register of the smaller size. In the second assignment, the second and third architected registers of the smaller size are separate and distinct registers in the ISA.