Arithmetic-logic unit with modulo addition/substraction function

Details Arithmetic-logic unit with modulo addition/substraction function Arithmetic-logic unit with modulo addition/substraction function

1992-05-29

1994-09-06

Malzahn, David H.

Boots, shoes, and leggings

G06F 772

Patent

active

053454103

ABSTRACT:
An arithmetic-logic unit ALU having three data input ports A, B and C, a modulo adder/subtracter for executing an arithmetic-logic operation of (A.+-.B) mod (C+1), a comparator for determining whether the input data A, B and C satisfy at least one of the relationship of A.ltoreq.B.ltoreq., A.ltoreq.B<C, A<B.ltoreq.C and A<B<C from a modulo operation viewpoint, and outputting a comparison judgment signal, a two-input ALU for executing an arithmetic-logic operation of two data, and one data output port for outputting operation results.

REFERENCES:
patent: 4722067 (1988-01-01), Williams
patent: 4742479 (1988-05-01), Kloker et al.
patent: 4744043 (1988-05-01), Kloker

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