Patents by Inventor Hiroyuki Mizumo

Hiroyuki Mizumo 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).

  • Loop iteration prediction by supplying pseudo branch instruction for execution at first iteration and storing history information in branch prediction unit
    Patent number: 7886134
    Abstract: This invention combines a loop support mechanism and a branch prediction mechanism. After an instruction execution unit executes an end block instruction of a block repeat, the loop control unit branches to the first instruction in the loop and sends a pseudo branch instruction to the instruction execution unit. The instruction execution unit acts as if the last instruction in the block is an instruction for branching to the start address of the block. This is stored in the branch prediction unit and branch prediction is performed thereafter.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: February 8, 2011
    Assignee: Texas Instruments Incorporated
    Inventor: Hiroyuki Mizumo
  • Processor and Signal Processing Method
    Publication number: 20090150658
    Abstract: This invention combines a loop support mechanism and a branch prediction mechanism. After an instruction execution unit executes an end block instruction of a block repeat, the loop control unit branches to the first instruction in the loop and sends a pseudo branch instruction to the instruction execution unit. The instruction execution unit acts as if the last instruction in the block is an instruction for branching to the start address of the block. This is stored in the branch prediction unit and branch prediction is performed thereafter.
    Type: Application
    Filed: December 5, 2008
    Publication date: June 11, 2009
    Inventor: Hiroyuki Mizumo