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:
Jun. 23, 2026
Filed:
Jun. 30, 2023
Sifive, Inc., San Mateo, CA (US);
Andrew Waterman, Berkeley, CA (US);
Krste Asanovic, Oakland, CA (US);
SiFive, Inc., Santa Clara, CA (US);
Abstract
Systems and methods are disclosed for supporting multiple vector lengths with a configurable vector register file. For example, an integrated circuit (e.g., a processor) includes a data store configured to store a vector length parameter; a processor core including a vector register, wherein the processor core is configured to: while a first value of the vector length parameter is stored in the data store, store a single architectural register of an instruction set architecture in the vector register; and, while a second value of the vector length parameter is stored in the data store, store multiple architectural registers of the instruction set architecture in respective disjoint portions of the vector register. For example, the integrated circuit may be used to emulate a processor with smaller vector registers for the purpose of migrating a thread to a processor core of the integrated circuit for continued execution.