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Conditional-Sum Addition Logic

机译:条件和加法逻辑

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摘要

Conditional-sum addition is a new mechanism for parallel, high-speed addition of digitally-represented numbers. Its design is based on the computation of ``conditional'' sums and carries that result from the assumption of all the possible distributions of carries for various groups of columns. A rapid-sequence mode of operation provides an addition rate that is invariant with the lengths of the summands. Another advantage is the possibility of realizing the adder with ``integrated devices'' or ``modules.'' The logic of conditional-sum addition is applicable to all positive radices, as well as to multisummand operation. In a companion paper, a comparison of several adders shows that, within a set of stated assumptions, conditional-sum addition is superior in certain respects, including processing speed.
机译:条件和加法是一种新的机制,用于对数字表示的数字进行并行,高速加法。它的设计基于``条件''总和的计算,并通过假定各种组列的进位的所有可能分布来得出该结果。快速序列操作模式提供的加法率与被加数的长度无关。另一个优点是可以用“集成设备”或“模块”实现加法器。条件和加法的逻辑适用于所有正半径以及多加法运算。在随附的论文中,对几个加法器的比较表明,在一组陈述的假设中,条件和加法在某些方面(包括处理速度)是优越的。

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