Patents by Inventor John Belz

John Belz 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).

  • Apparatus for activation and deactivation of instruction tracing through use of conditional trace field in branch instructions
    Patent number: 5359608
    Abstract: A conditional trace system in a computer system for controlling the enablement of a trace operation in the computer system, the computer system including a set of instructions for operating said computer, the set of instructions including branch instructions, the branch instruction generating a jump signal whenever the branch instruction performs a branch operation, the conditional trace system comprising a conditional trace field in each branch instruction where the conditional trace field has either a first or second value and a first means responsive to the value of said conditional trace field and the jump signal for selectively enabling and disenabling the trace operation within the computer system.
    Type: Grant
    Filed: November 24, 1992
    Date of Patent: October 25, 1994
    Assignee: Amdahl Corporation
    Inventors: John Belz, Linda Newell