Circuit for performing square root functions

Details Circuit for performing square root functions Circuit for performing square root functions

1985-10-31

1988-03-29

Harkcom, Gary V.

Boots, shoes, and leggings

G06F 7552

Patent

active

047348780

ABSTRACT:
Circuitry for computing the square root of a number wherein the input number is partitioned into digit pairs left and right of the radix point. Pairs of zeros are added after the radix point for each digit of the desired precision. The most significant zero digit pairs are skipped to the first digit pair which is not zero, accordingly the first answer bit is a 1. A residue is formed by subtracting the 1 from the digit pair, multiplying by 4, and adding the next most significant digit pair. The procedure is repeated for subsequent bit pairs by defining trial divisors and determining residue values.

REFERENCES:
patent: 3280314 (1966-10-01), Weigler
patent: 3576983 (1971-05-01), Cochran
patent: 3829672 (1974-08-01), Sather
patent: 3906210 (1975-09-01), Mignot
patent: 4336599 (1982-06-01), Wong

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