The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 2015
Filed:
Dec. 28, 2012
Intel Corporation, Santa Clara, CA (US);
Himanshu Kaul, Portland, OR (US);
Mark A. Anders, Hillsboro, OR (US);
Sanu K. Mathew, Hillsboro, OR (US);
Ram K. Krishnamurthy, Hillsboro, OR (US);
William C. Hasenplaugh, Cambridge, MA (US);
Randy L. Allmon, North Grafton, MA (US);
Jonathan Enoch, Worcester, MA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
Embodiments of the present invention may provide methods and circuits for energy efficient floating point multiply and/or add operations. A variable precision floating point circuit may determine the certainty of the result of a multiply-add floating point calculation in parallel with the floating-point calculation. The variable precision floating point circuit may use the certainty of the inputs in combination with information from the computation, such as, binary digits that cancel, normalization shifts, and rounding, to perform a calculation of the certainty of the result. A floating point multiplication circuit may determine whether a lowest portion of a multiplication result could affect the final result and may induce a replay of the multiplication operation when it is determined that the result could affect the final result.