Patents by Inventor Rekha Suryanarayana

Rekha Suryanarayana 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).

  • Immediate floating-point operand reformatting in a microprocessor
    Patent number: 5940311
    Abstract: A microprocessor (5) having an on-chip floating-point unit, or FPU, (31) is disclosed. Snoop logic (37) is present in the integer pipeline to detect the presence of floating-point load instructions, in which floating-point operands are retrieved from system main memory or from on-chip cache memory (6, 16.sub.d, 18) by load/store units 40. For such operations in which the floating-point operands are of single precision or double precision, immediate formatter (70) receives the retrieved operands on load/store buses (LOAD.sub.-- DATA0, LOAD.sub.-- DATA1) and reformats the operands into a higher precision format for use internally by FPU (31). Rebias circuitry (78) is provided within immediate formatter (70) to change the bias of the exponent portion of the reformatted floating-point operands.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: August 17, 1999
    Assignee: Texas Instruments Incorporated
    Inventors: Tuan Q. Dao, Rekha Suryanarayana, Naoki Hayashi