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. 02, 2025
Filed:
Jan. 31, 2024
Applicant:
Sifive, Inc., San Mateo, CA (US);
Inventors:
Andrew Waterman, Berkeley, CA (US);
Krste Asanovic, Oakland, CA (US);
Josh Smith, San Francisco, CA (US);
Assignee:
SiFive, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/30 (2018.01); G06F 9/24 (2006.01); G06F 9/38 (2018.01);
U.S. Cl.
CPC ...
G06F 9/3806 (2013.01); G06F 9/24 (2013.01);
Abstract
Systems and methods are disclosed for macro-op fusion in pipelined architectures. For example, some methods include detecting a sequence of macro-ops stored in an instruction decode buffer, the sequence of macro-ops including a first macro-op, followed by one or more intervening macro-ops, followed by a last macro-op; determining a micro-op that is equivalent to the first macro-op combined with the last macro-op; and forwarding the micro-op to one or more execution resource circuitries for execution.