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:
Apr. 17, 2012
Filed:
Dec. 05, 2008
Earl Swartzlander, Jr., Austin, TX (US);
Jordan Hani Saleh, Austin, TX (US);
Earl Swartzlander, Jr., Austin, TX (US);
Jordan Hani Saleh, Austin, TX (US);
Crossfield Technology LLC, Austin, TX (US);
Abstract
In a particular embodiment, a method is disclosed that includes receiving first and second operands at a floating-point fused add-subtract circuit. The method further includes simultaneously performing add and subtract operations on the first and second operands via the floating-point fused add-subtract circuit to produce a sum result output and a difference result output. The floating-point fused add-subtract circuit includes sign logic, exponent adjustment logic, and shift logic that are shared by an add/round and post-normalize circuit and a subtract/round and post-normalize circuit to produce the sum and difference result outputs.