Patents by Inventor Eileen Samberg

Eileen Samberg 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).

  • Method and apparatus using a source operand list and a source operand pointer queue between the execution unit and the instruction decoding and operand processing units of a pipelined data processor
    Patent number: 5109495
    Abstract: To execute variable-length instructions independently of instruction preprocessing, a central processing unit is provided with a set of queues in the data and control paths between an instruction unit and an execution unit. The queues include a "fork" queue, a source queue, a destination queue, and a program counter queue. The fork queue contains an entry of control information for each instruction processed by the instruction unit. This control information corresponds to the opcode for the instruction, and preferably it is a microcode "fork" address at which a microcode execution unit begins execution to execute the instruction. The source queue specifies the source operands for the instruction. Preferably the source queue stores source pointers and the operands themselves are included in a separate "source list" in the case of operands fetched from memory or immediate data from the instruction stream, or are the contents of a set of general purpose registers in the execution unit.
    Type: Grant
    Filed: February 3, 1989
    Date of Patent: April 28, 1992
    Assignee: Digital Equipment Corp.
    Inventors: David B. Fite, Tryggve Fossum, William R. Grundmann, Dwight P. Manely, Francis X. McKeen, John E. Murray, Ronald M. Salett, Eileen Samberg, Daniel P. Stirling