Patents by Inventor Abhijit Radhakrishnan

Abhijit Radhakrishnan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System and method for register renaming with register assignment based on an imbalance in free list banks
    Patent number: 9354879
    Abstract: A free list in processor includes multiple banks for indicating availability of register identifiers used for register renaming. A register rename unit receives one or more destination architectural registers to rename with physical register identifiers. Responsive to determining the multiple banks within the free list are unbalanced with available physical register identifiers, one or more returning physical register identifiers are assigned to the destination architectural registers before assigning any physical register identifiers from any bank of the multiple banks with a lowest number of available physical register identifiers. A returning physical register identifier is a physical register identifier that is available again for assignment to a destination architectural register but not yet indicated in the free list as available. Each of the banks includes a single bit width decoded vector for indicating availability of given physical register identifiers.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: May 31, 2016
    Assignee: Apple Inc.
    Inventors: Suparn Vats, John H. Mylius, Abhijit Radhakrishnan
  • LOW POWER AND HIGH PERFORMANCE PHYSICAL REGISTER FREE LIST IMPLEMENTATION FOR MICROPROCESSORS
    Publication number: 20140013085
    Abstract: A system and method for reducing latency and power of register renaming. A free list in processor includes multiple banks for indicating availability of register identifiers used for register renaming. A register rename unit receives one or more destination architectural registers to rename with physical register identifiers. Responsive to determining the multiple banks within the free list are unbalanced with available physical register identifiers, one or more returning physical register identifiers are assigned to the destination architectural registers before assigning any physical register identifiers from any bank of the multiple banks with a lowest number of available physical register identifiers. A returning physical register identifier is a physical register identifier that is available again for assignment to a destination architectural register but not yet indicated in the free list as available.
    Type: Application
    Filed: July 3, 2012
    Publication date: January 9, 2014
    Inventors: Suparn Vats, John H. Mylius, Abhijit Radhakrishnan