Patents Assigned to Hitachi Microcoputer System, Ltd.
  • Emulator and corresponding trace control method
    Patent number: 6055651
    Abstract: A trace memory in the emulator is formed into a plurality of memory banks. Data to be traced is in principle stored sequentially in each memory bank. A trace condition setting circuit (trace registers) and a trace condition agreement detecting circuit (comparators) are provided to generate a valid/invalid flag FB indicating whether or not the data meet the set condition. This flag FB is stored along with the trace data in each memory bank.
    Type: Grant
    Filed: December 10, 1996
    Date of Patent: April 25, 2000
    Assignees: Hitachi, Ltd., Hitachi Microcoputer System, Ltd.
    Inventors: Hiroyuki Sasaki, Yoshikazu Aoto, Shuya Fujita, Tatsuya Suzuki