Floating point arithmetic unit using modified Newton-Raphson tec

Details Floating point arithmetic unit using modified Newton-Raphson tec Floating point arithmetic unit using modified Newton-Raphson tec

1993-05-05

1994-08-23

Mai, Tan V.

Boots, shoes, and leggings

G06F 738

Patent

active

053413210

ABSTRACT:
A floating point processing system which uses a multiplier unit and an adder unit to perform floating point division and square root operations using both a conventional and a modified form of the Newton-Raphson method. The modified form of the Newton-Raphson method is used in place of the final iteration of the conventional Newton-Raphson so as to compute high precision approximated results with a substantial improvement in speed. The invention computes approximated results faster and simplifies hardware requirements because no multiplications of numbers of the precision of the result are required.

REFERENCES:
patent: 4999801 (1991-03-01), Katsuno
patent: 4999802 (1991-03-01), Cocanougher et al.
patent: 5042001 (1991-08-01), Brightman et al.
patent: 5157624 (1992-10-01), Hesson
patent: 5220524 (1993-06-01), Hesson
Chai et al., "A 120 MFLOPS CMOS Floating-Point Processor", IEEE 1991 Custom Integrated Circuits Conference, pp. 15.1.1-15.1.4.
Waser et al., "Introduction to Arithmetic for Digital Systems Designers", Holt, Rinehart and Winston, pp. 193-211.
Karp, A., "Speeding up N-body Calculations on Machines without Hardware Square Root", Document No. G320-3565, IBM Scientific Center, pp. 1-7, Apr. 27, 1992.
Cody et al., "Software Manual for the Elementary Functions", Prentice-Hall, 1980, Chapter 4, pp. 17-34.
Markstein, P. W., "Computation of Elementary Functions of the IBM RISC System/6000 Processor", IBM Journal of Research and Development, vol. 34, No. 1, Jan. 1990, pp. 111-119.
Darley et al., "The TMS390C602A Floating-Point Coprocessor for Sparc Systems", IEEE Micro, Jun. 1990, pp. 36-47.

Affiliated with

Also associated with

Rating

Floating point arithmetic unit using modified Newton-Raphson tec does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Floating point arithmetic unit using modified Newton-Raphson tec, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Floating point arithmetic unit using modified Newton-Raphson tec will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-507674