Patents by Inventor Evandro Carlos Menezes

Evandro Carlos Menezes 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).

  • Using the least significant bits of a called function's address to switch processor modes
    Patent number: 10055227
    Abstract: Systems and methods for tracking and switching between execution modes in processing systems. A processing system is configured to execute instructions in at least two instruction execution triodes including a first and second execution mode chosen from a classic/aligned mode and a compressed/unaligned mode. Target addresses of selected instructions such as calls and returns are forcibly misaligned in the compressed mode, such one or more bits, such as, the least significant bits (alignment bits) of the target address in the compressed mode are different from the corresponding alignment bits in the classic mode. When the selected instructions are encountered during execution in the first mode, a decision to switch operation to the second mode is based on analyzing the alignment bits of the target address of the selected instruction.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: August 21, 2018
    Assignee: QUALCOMM Incorporated
    Inventors: Charles Joseph Tabony, Erich James Plondke, Lucian Codrescu, Suresh K. Venkumahanti, Evandro Carlos Menezes
  • Table call instruction for frequently called functions
    Patent number: 9116685
    Abstract: An apparatus includes a memory that stores an instruction including an opcode and an operand. The operand specifies an immediate value or a register indicator of a register storing the immediate value. The immediate value is usable to identify a function call address. The function call address is selectable from a plurality of function call addresses.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: August 25, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Erich James Plondke, Lucian Codrescu, Charles Joseph Tabony, Ajay Anant Ingle, Suresh K. Venkumahanti, Evandro Carlos Menezes
  • Table Call Instruction for Frequently Called Functions
    Publication number: 20130024663
    Abstract: An apparatus includes a memory that stores an instruction including an opcode and an operand. The operand specifies an immediate value or a register indicator of a register storing the immediate value. The immediate value is usable to identify a function call address. The function call address is selectable from a plurality of function call addresses.
    Type: Application
    Filed: July 19, 2011
    Publication date: January 24, 2013
    Applicant: QUALCOMM INCORPORATED
    Inventors: Erich James Plondke, Lucian Codrescu, Charles Joseph Tabony, Ajay Anant Ingle, Suresh K. Venkumahanti, Evandro Carlos Menezes