Patents by Inventor Alexander E. Mericas

Alexander E. Mericas 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).

  • Simplified event selection for a performance monitor unit
    Patent number: 7500138
    Abstract: A method and a processor for counting events in a performance monitor unit (PMU) of the processor includes using a mask bit and match bit comparison for event data to determine occurrence of events and routing indications of occurrences to a counter for counting.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: March 3, 2009
    Assignee: International Business Machines Corporation
    Inventor: Alexander E. Mericas
  • SIMPLIFIED EVENT SELECTION FOR A PERFORMANCE MONITOR UNIT
    Publication number: 20070294054
    Abstract: A method and a processor for counting events in a performance monitor unit (PMU) of the processor includes using a mask bit and match bit comparison for event data to determine occurrence of events and routing indications of occurrences to a counter for counting.
    Type: Application
    Filed: May 17, 2006
    Publication date: December 20, 2007
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Alexander E. Mericas
  • Extending width of performance monitor counters
    Patent number: 7225105
    Abstract: A performance monitor includes at least one Monitor Mode Control Register (MMCR) and plural Performance Control Monitors (PMCs). Each PMC is controlled by the MMCR to pair or group the PMCs so that the overflow from one PMC can be directed to its pair/group. By coupling the PMCs so that overflow from one can be directed to another, the effective size of the counters can be increased.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: May 29, 2007
    Assignee: International Business Machines Corporation
    Inventor: Alexander E. Mericas
  • Extending width of performance monitor counters
    Patent number: 7225110
    Abstract: A performance monitor includes at least one Monitor Mode Control Register (MMCR) and plural Performance Control Monitors (PMCs). Each PMC is controlled by the MMCR to pair or group the PMCs so that the overflow from one PMC can be directed to its pair/group. By coupling the PMCs so that overflow from one can be directed to another, the effective size of the counters can be increased.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: May 29, 2007
    Assignee: International Business Machines Corporation
    Inventor: Alexander E. Mericas
  • Extending width of performance monitor counters
    Publication number: 20040122622
    Abstract: A performance monitor includes at least one Monitor Mode Control Register (MMCR) and plural Performance Control Monitors (PMCs). Each PMC is controlled by the MMCR to pair or group the PMCs so that the overflow from one PMC can be directed to its pair/group. By coupling the PMCs so that overflow from one can be directed to another, the effective size of the counters can be increased.
    Type: Application
    Filed: December 10, 2003
    Publication date: June 24, 2004
    Applicant: International Business Machines Corporation
    Inventor: Alexander E. Mericas
  • Extending width of performance monitor counters
    Publication number: 20030036883
    Abstract: A performance monitor includes at least one Monitor Mode Control Register (MMCR) and plural Performance Control Monitors (PMCs). Each PMC is controlled by the MMCR to pair or group the PMCs so that the overflow from one PMC can be directed to its pair/group. By coupling the PMCs so that overflow from one can be directed to another, the effective size of the counters can be increased.
    Type: Application
    Filed: August 16, 2001
    Publication date: February 20, 2003
    Applicant: International Business Machines Corp.
    Inventor: Alexander E. Mericas