Patents by Inventor Michael C. Adler

Michael C. Adler 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).

  • Mechanism for enforcing the correct order of instruction execution
    Patent number: 5420990
    Abstract: An apparatus for enforcing that selected instructions are executed in a correct order, comprising a first content addressable memory for storing load addresses of data read from the memory by the selected instructions. The first content addressable memory comparing the store addresses with the load addresses of data to be written to the memory. The first content addressable memory generating a first signal, if one of the load addresses is identical to a subsequently compared one of the store addresses. The apparatus further including a second content addressable memory for storing and comparing states of the data read and written by the selected instructions. The second content addressable memory generating a second signal, if one of the stored states is identical to one of said compared states. The stored states including a program counter to repeat the execution of the selected instructions upon detecting the first and second signals.
    Type: Grant
    Filed: June 17, 1993
    Date of Patent: May 30, 1995
    Assignee: Digital Equipment Corporation
    Inventors: Francis X. McKeen, Michael C. Adler, Joel S. Emer, Robert P. Nix, David J. Sager, P. Geoffrey Lowney