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:
Jul. 24, 2012
Filed:
Sep. 26, 2008
Sang Hoo Dhong, Austin, TX (US);
Harm Peter Hofstee, Austin, TX (US);
Christian Jacobi, Boeblingen, DE;
Silvia Melitta Mueller, Altdorf, DE;
Hwa-joon OH, Austin, TX (US);
Sang Hoo Dhong, Austin, TX (US);
Harm Peter Hofstee, Austin, TX (US);
Christian Jacobi, Boeblingen, DE;
Silvia Melitta Mueller, Altdorf, DE;
Hwa-Joon Oh, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for controlling rounding modes in a single instruction multiple data (SIMD) floating-point unit is disclosed. The SIMD floating-point unit includes a floating-point status-and-control register (FPSCR) having a first rounding mode bit field and a second rounding mode bit field. The SIMD floating-point unit also includes means for generating a first slice and a second slice. During a floating-point operation, the SIMD floating-point unit concurrently performs a first rounding operation on the first slice and a second rounding operation on the second slice according to a bit in the first rounding mode bit field and a bit in the second rounding mode bit field within the FPSCR, respectively.