Method and apparatus for integer division

Details Method and apparatus for integer division Method and apparatus for integer division

2007-12-30

2011-11-15

Mai, Tan V (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

Reexamination Certificate

active

08060551

ABSTRACT:
A method, arithmetic divider unit, and system are disclosed for dividing a dividend DZM . . . Z0having a most significant bit ZMand a plurality of less significant bits ZM−1through Z0by a divisor RZN . . . Z0having a most significant bit ZNand a plurality of less significant bits ZN−1through Z0. The method, arithmetic divisor unit, and system round the divisor to the next significant bit greater than the divisor's most significant bit ZNto produce a first partial divisor RZN+1, divide the dividend DZM . . . Z0by the first partial divisor RZN+1to produce a first partial quotient QN, calculate one or more additional partial quotients based on one or more divisor bits selected from the plurality of divisor bits ZN−1through Z0, and add the first partial quotient QNand one or more additional partial quotients to produce an estimated final quotient.

REFERENCES:
patent: 5661674 (1997-08-01), Smith, Sr.
patent: 7672990 (2010-03-01), Dupaquis et al.
patent: 2005/0289209 (2005-12-01), Robison

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