Correction circuit for approximate quotient

Details Correction circuit for approximate quotient Correction circuit for approximate quotient

1982-04-07

1984-12-11

Malzahn, David H.

Boots, shoes, and leggings

G06F 752

Patent

active

044882475

ABSTRACT:
An approximate quotient-correcting circuit wherein an approximate quotient Q.sub.H, a divisor D, and the least significant bit of the fraction part of a dividend N are read out; the approximate quotient Q.sub.H and the divisor D are multiplied; it is decided whether the lower m digits of Q.sub.H .times.D are not all `0` and whether the m-th significant bit of Q.sub.H .times.D is coincident with the m-th significant bit of N; and when the result of the decision is positive, Q.sub.H -2.sup.-m is provided as a quotient.

REFERENCES:
patent: 3508038 (1970-04-01), Goldschmidt et al.
patent: 3633018 (1972-01-01), Ling
patent: 3648038 (1972-03-01), Sierra
patent: 3777132 (1973-12-01), Bennett, Jr.
patent: 4364115 (1982-12-01), Asai

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