Radix- $2^{r}$ Arithmetic for Multiplication by a Constant

Radix- $2^{r}$ Arithmetic for Multiplication by a Constant
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基数 - $2^{r}$ 乘以常数的算术

DOI:
10.1109/tcsii.2014.2312799
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发表时间:
2014
期刊:
IEEE Transactions on Circuits and Systems - II - Express Briefs
影响因子:
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通讯作者:
N. Chaillet
N. Chaillet
中科院分区:
--
文献类型:
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作者:
A. K. Oudjida;N. Chaillet

文献摘要

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在这个简短的,基数-2r算法的探索,以尽量减少在乘以一个常数的加法的数量。我们提供了正式的证明,对于一个N位常数,最大数量的加法使用基数-2ris低于Dimitrov的估计上限2。N/log(N)使用双基数系统(DBNS)。与规范符号数(CSD)和DBNS相比,新的基数2重新编码需要的64位常数的加法平均分别减少23.12%和3.07%。
In this brief, radix-2r arithmetic is explored to minimize the number of additions in the multiplication by a constant. We provide the formal proof that, for an N-bit constant, the maximum number of additions using radix- 2ris lower than Dimitrov's estimated upper bound 2. N/log(N) using the double-base number system (DBNS). In comparison with the canonical signed digit (CSD) and the DBNS, the new radix- 2rrecoding requires an average of 23.12% and 3.07% less additions for a 64-bit constant, respectively.