It is given that detailed design of the ALU unit, includes the execution unit, datapath, instruction and the trade-off in the design.

重点讨论了ALU的资源部件、数据通路、指令及在设计中的平衡规则。

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The arithmetic logic unit(ALU) decides the performance of the Central Processing Unit(CPU), while the adder decides that of the ALU.

算术逻辑运算单元（ALU）决定着中央处理器（CPU）的性能，而加法器又决定着ALU的性能。

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The arithmetic is realized by logic operations and implemented by the spatial encoding technique, which offers an efficient design of optical arithmetic logic unit(ALU).

这些基本运算都可通过空间编码与解码的光学逻辑实现，从而提供了一种有效的光学算术-逻辑单元（ALU）设计方案。

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