Reciprocal estimate computation methods and apparatus

Details Reciprocal estimate computation methods and apparatus Reciprocal estimate computation methods and apparatus

2005-11-17

2009-12-15

Mai, Tan V (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

Reexamination Certificate

active

07634527

ABSTRACT:
In a first aspect, a first method of reciprocal estimate computation using floating point pipeline logic is provided. The first method includes the steps of (1) receiving an input value having an exponent and a mantissa when represented as a floating point number on which a reciprocal estimate computation is to be performed; (2) determining whether the exponent is one of a plurality of predetermined numbers; and (3) if the exponent is one of the plurality of predetermined numbers, adjusting at least one of a plurality of modified mantissa bits (e.g., mantissa bits internal to leading zero anticipator (LZA) logic) and the exponent so as to prevent an underflow result of the reciprocal estimate computation. Numerous other aspects are provided.

REFERENCES:
patent: 4594680 (1986-06-01), Schomburg et al.
patent: 6163791 (2000-12-01), Schmookler et al.
patent: 6223192 (2001-04-01), Oberman et al.
patent: 6732134 (2004-05-01), Rosenberg et al.
patent: 2002/0116431 (2002-08-01), Ho et al.

Affiliated with

Also associated with

Rating

Reciprocal estimate computation methods and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reciprocal estimate computation methods and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reciprocal estimate computation methods and apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4065615