Apparatus for executing division by high-speed convergence proce

Details Apparatus for executing division by high-speed convergence proce Apparatus for executing division by high-speed convergence proce

1988-12-15

1991-02-05

Shaw, Dale M.

Boots, shoes, and leggings

G06F 752

Patent

active

049911325

ABSTRACT:
A division apparatus for executing division operation by means of a convergence algorithm, the apparatus including a ROM having a table of inverse values stored therein which respectively correspond to all possible values of a first approximation for a divisor. Division is executed by reading out a corrsponding inverse value from the ROM, and performing a small number of successive multiplication operations on the divided and this inverse value, in conjunction with simple addition or subtraction operations which are determined by the specific form of the alogorithm which is used. A considerable increase in division speed is attainable, with a simple system configuration.

REFERENCES:
patent: 4364115 (1982-12-01), Asai
patent: 4481600 (1984-11-01), Asai
patent: 4636973 (1987-01-01), Cantwell
patent: 4716538 (1987-12-01), Mills et al.
patent: 4725974 (1988-02-01), Kanazawa
patent: 4744045 (1988-05-01), Mills et al.

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