FIELD: computer equipment.
SUBSTANCE: disclosed multi-digit parallel adder modulo with serial transfer realizes summation of input numbers A and B modulo M in two steps by performing summation operation in single-digit parallel adders modulo. At first step, expression value (A+B)-M is determined. If the obtained value is greater than or equal to zero, i.e. (A+B)-M≥0, desired value is obtained. If the obtained value is less than zero, i.e. (A+B)-M<0, then the desired value is obtained at the second step by repeated summation of the numbers A and B.
EFFECT: providing a multi-digit parallel adder modulo with serial transfer.
1 cl, 2 dwg, 1 tbl
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