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:
Dec. 04, 2018
Filed:
Feb. 24, 2017
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Nicolai Hähnle, Polling, DE;
Advanced Micro Devices, Inc., Santa Clara, CA (US);
Abstract
Systems, apparatuses, and methods for performing a division operation are disclosed. In one embodiment, a processor includes at least one arithmetic logic unit and a register file. In response to detecting a request to perform a division operation between a dividend and a divisor, the processor generates an initial approximation of the reciprocal of the divisor. Then, the processor converts the initial approximation of the reciprocal of the divisor into a fractional fixed point representation. The processor also introduces a small error into the initial approximation of the reciprocal of the divisor. Then, the processor implements one or more Newton-Raphson iterations for refining the approximation of the reciprocal and then multiplies the final reciprocal value by the dividend to generate the quotient.