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:
May. 09, 2006
Filed:
Mar. 13, 1998
Gilbert M. Wolrich, Framingham, MA (US);
Mark D. Matson, Acton, MA (US);
John D. Clouser, Pepperell, MA (US);
Gilbert M. Wolrich, Framingham, MA (US);
Mark D. Matson, Acton, MA (US);
John D. Clouser, Pepperell, MA (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
The shifters () that a floating-point processor ()'s addition pipeline () uses to align or normalize floating-point operands' mantissas before addition or subtraction shift a given mantissa pair one more bit to the left for subtraction than for addition. As a result, the addition pipeline's rounding circuitry () does not need to be capable of adding round bits in as many positions as it would without the shift difference, so it can be simpler and faster. Similarly, circuitry (and) employed for normalization after addition and subtraction can be simpler because it does not have to implement as shift options.