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:
Jun. 25, 2019
Filed:
Nov. 11, 2017
International Business Machines Corporation, Armonk, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for performing tiny detection in floating-point operations with a floating-point unit. The floating-point unit is configured to implement a fused-multiply-add operation on three wide operands. The floating-point unit comprise: a multiplier, a left shifter, a right shifter a select circuit comprising a 3-to-2 compressor, an adder connected to the dataflow from the select circuit, a first feedback path connecting a carry output) of the adder to the select circuit, and a second feedback path connecting an output of the adder to the left and right shifters for passing an intermediate wide result through the left and right shifters. The adder is configured to provide an unrounded result for tiny detection.