When designing data-path of the microprocessor, it is a very important issue about how to design a highspeed and low power multiplier,especially the bit-width is very large (such as 32*32,54*54 and 64*64).

• 如何以合理的代价构造尽可能高速的低功耗的乘法器,尤其是位数较宽的乘法器(如32~*32,54~*54和64~*64等)是微处理器数据通路设计中极其重要的环节。