Method and apparatus for arithmetic operation and recording...

G - Physics – 09 – C

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G09C 1/00 (2006.01) G06F 7/72 (2006.01) G06F 17/00 (2006.01) G06Q 10/00 (2006.01)

Patent

CA 2284713

An integer Z101 is divided by an integer I102 to obtain a remainder R109. The integer I102 includes a polynomial of power of a basic operational unit of a computer. In this way, the integer I for divisor is limited based on the basic operational unit of the computer, thus a shift operation, which is required for a conventional operation method, can be eliminated. The remainder can be calculated by only addition and subtraction. Accordingly, a code size becomes compact and the remainder of the integer can be calculated at a high speed.

On décrit un entier Z101 qu'on divise par un autre entier I102 pour déterminer le reste R109. L'entier I102 est exprimé par un élément polynominal comprenant des puissances de l'unité de base d'une opération sur ordinateur. Lorsque le diviseur est limité conformément à l'unité de base d'une opération sur ordinateur, aucune opération de décalage n'est requise contrairement à la méthode classique, et les restes peuvent ainsi être déterminés simplement par addition et soustraction. On obtient ainsi une dimension de code compacte et, partant, une détermination très rapide des restes d'entier.

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