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. 23, 1996
Filed:
Nov. 30, 1994
Applicant:
Inventor:
Roland A Bechade, South Burlington, VT (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364745 ; 364748 ;
Abstract
A method and circuit for store rounding a number wherein the guard bit and least significant bit of the number are selectively exchanged depending on the IEEE rounding mode to simplify the decision-making circuit. Zero detection logic is performed on the guard, round and sticky bit positions to determine if incrementing is required. An incrementer provided with the number and a guard bit, which may be the true guard bit or a predetermined constant value depending on the rounding mode, responds to the zero detection logic to increment the number from the guard bit position.