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Decimal multiplication using digit recoding
Decimal multiplication using digit recoding
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机译:使用数字重新编码的十进制乘法
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摘要
A system and methodology for decimal multiplication in a microprocessor comprising: a recoder configured to recode decimal digits of a first operand to a corresponding set of {−5 to +5}. The recoder also configured to recode decimal digits of a second operand to a corresponding set of {−5 to +5}. The system also includes a multiplier array of digit multipliers, each digit multiplier configured to generate a partial product of a selected digit of a recoded first operand and a recoded second operand; and an adder array of digit adders, each adder configured to generate a sum of the partial products, wherein a least significant digit of the sum is shifted to a results register, and each adder includes carry feedback.
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