Calculation unit

Details Calculation unit Calculation unit

1997-06-23

2000-01-04

Malzahn, David H.

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

708656, G06F 752

Patent

active

060120789

ABSTRACT:
A multiplier uses squaring units to find the product of two binary numbers A and B by exploiting the algebraic expansion of (A-B).sup.2 or (A+B).sup.2. The squaring units may be look-up memories. However, to multiply extremely large numbers, each squaring unit may itself have look-up memories and additional components. A divider may be formed by using the multiplier to multiply trial quotients by a divisor and by comparing the product with a dividend. The trial quotient is formed by shifting a one through a sequence of bit positions and latching the one at bit positions such that the trial quotient times the divisor does not exceed the dividend.

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patent: 5404324 (1995-04-01), Colon-Bonet
patent: 5422805 (1995-06-01), McIntyre et al.

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