ARBITRARY PRECISION ARITHMETIC APPARATUS, ARBITRARY PRECISION ARITHMETIC METHOD, AND ELECTRONIC DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an arbitrary precision arithmetic apparatus with a comparatively simple structure so as to perform calculation by applying the same calculation algorithm regardless of precision in data.;SOLUTION: The arbitrary precision arithmetic apparatus includes a master process part (2) for dividing first and second arbitrary precision numerical values X, Y respectively by N (N is a natural number) bits from lower order and outputting them in order as the first and second input values with an N bit length; and an N bit arithmetic apparatus (1) for performing the calculation of the supplied first and second input values X, Y, making a request to the master process part (2) for the calculation of the succeeding N bits whenever the calculation is completed, and adding the carry generated in the calculation to the calculation of the subsequent N bits.;COPYRIGHT: (C)2006,JPO&NCIPI