Patents by Inventor HAW-LUEN TSAI

HAW-LUEN TSAI 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).

  • Method for compressing variable-length instructions including PC-relative instructions and processor for executing compressed instructions using an instruction table
    Patent number: 9672041
    Abstract: A method for compressing instruction is provided, which includes the following steps. Analyze a program code to be executed by a processor to find one or more instruction groups in the program code according to a preset condition. Each of the instruction groups includes one or more instructions in sequential order. Sort the one or more instruction groups according to a cost function of each of the one or more instruction groups. Put the first X of the sorted one or more instruction groups into an instruction table. X is a value determined according to the cost function. Replace each of the one or more instruction groups in the program code that are put into the instruction table with a corresponding execution-on-instruction-table (EIT) instruction. The EIT instruction has a parameter referring to the corresponding instruction group in the instruction table.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: June 6, 2017
    Assignee: ANDES TECHNOLOGY CORPORATION
    Inventors: Wei-Hao Chiao, Hong-Men Su, Haw-Luen Tsai
  • Executing instructions for managing constant pool base register used for accessing constants during subroutine execution
    Patent number: 8972705
    Abstract: A constant data accessing system having a constant pool comprises a computer processor having a constant pool base register, a compiler having a constant pool handler, and an instruction set module having a constant pool instruction set unit. The constant pool base register is configured to store a value of constant pool base address of one or a plurality of subroutines which have constants to be accessed.
    Type: Grant
    Filed: November 16, 2011
    Date of Patent: March 3, 2015
    Assignee: Andes Technology Corporation
    Inventors: Wei-Hao Chiao, Haw-Luen Tsai, Chen-Wei Chang, Hong-Men Su
  • METHOD FOR COMPRESSING INSTRUCTION AND PROCESSOR FOR EXECUTING COMPRESSED INSTRUCTION
    Publication number: 20150039863
    Abstract: A method for compressing instruction is provided, which includes the following steps. Analyze a program code to be executed by a processor to find one or more instruction groups in the program code according to a preset condition. Each of the instruction groups includes one or more instructions in sequential order. Sort the one or more instruction groups according to a cost function of each of the one or more instruction groups. Put the first X of the sorted one or more instruction groups into an instruction table. X is a value determined according to the cost function. Replace each of the one or more instruction groups in the program code that are put into the instruction table with a corresponding execution-on-instruction-table (EIT) instruction. The EIT instruction has a parameter referring to the corresponding instruction group in the instruction table.
    Type: Application
    Filed: August 1, 2013
    Publication date: February 5, 2015
    Applicant: ANDES TECHNOLOGY CORPORATION
    Inventors: Wei-Hao Chiao, Hong-Men Su, Haw-Luen Tsai
  • CONSTANT DATA ACESSING SYSTEM AND METHOD THEREOF
    Publication number: 20130124836
    Abstract: A constant data accessing system having a constant pool comprises a computer processor having a constant pool base register, a compiler having a constant pool handler, and an instruction set module having a constant pool instruction set unit. The constant pool base register is configured to store a value of constant pool base address of one or a plurality of subroutines which have constants to be accessed.
    Type: Application
    Filed: November 16, 2011
    Publication date: May 16, 2013
    Applicant: ANDES TECHNOLOGY CORPORATION
    Inventors: WEI-HAO CHIAO, HAW-LUEN TSAI, CHEN-WEI CHANG, HONG-MEN SU