Patents by Inventor David P. Tuttle

David P. Tuttle 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).

  • Data cache initialization
    Patent number: 5113508
    Abstract: A data processing system including a data cache with the capability to selectively zero the contents of the data cache. The invention includes a multiplexor arranged to provide a parallel data output that is greater than the parallel data input from either a central processing unit or from a memory that are each connected to access the data cache. This multiplexor is selectively controlled to provide a parallel data output of zeroes upon the decoding of a specific zeroing instruction.
    Type: Grant
    Filed: March 29, 1991
    Date of Patent: May 12, 1992
    Assignee: International Business Machines Corporation
    Inventors: Randall D. Groves, David P. Tuttle