Patents by Inventor David W. Sollender

David W. Sollender 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 for aligning bytes of variable multi-bytes length operand based on alu byte length and a number of unprocessed byte data
    Patent number: 5168571
    Abstract: A hardware data string operation controller is provided which (1) performs variable length main store string operation; (2) executes at least a subset of both left to right and right to left instructions, having variable length multibyte operands; and (3) performs multicycle storage to storage operations on variable length multibyte operand data, all under the control of a single control word. The controller comprises (a) means for dynamically determining (and if necessary, adjusting) the maximum number of operand related data string bytes that can be processed (by the controller) during each machine cycle (referred to as"data mode" calculation/alteration); (b) means for performing partial machine "holdoffs" (i.e.
    Type: Grant
    Filed: January 24, 1990
    Date of Patent: December 1, 1992
    Assignee: International Business Machines Corporation
    Inventors: Russell D. Hoover, John D. Irish, David W. Sollender