Patents by Inventor Hung Oui Le

Hung Oui Le 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).

  • Patent number: 6550002
    Abstract: A method and system for detecting flushed instructions without a flush indicator is provided. In order to monitor the flushing of an instruction in an instruction pipeline of a processor, an instruction is selected as a sampled instruction and the progress of the sampled instruction through the instruction pipeline is monitored. Upon selection of an instruction as a sampled instruction, a countdown value is initialized to a value equal to the maximum number of instructions within the instruction pipeline, and as instructions complete, the countdown value is decremented. If progress of the sampled instruction is detected as the instruction moves through the instruction pipeline, the countdown value is reinitialized. If the countdown value reaches zero, then a flush of the sampled instruction from the instruction pipeline is presumed, and an indication that the sampled instruction has been flushed is generated.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: April 15, 2003
    Assignee: International Business Machines Corporation
    Inventors: Joel Roger Davidson, Hung Oui Le, Alexander Erik Mericas