由8 位加法器构成的以时序方式设计的8 位乘法器，采用逐项移位相加的方 法来实现相乘的VHDL程序代码。包含几个小模块和一个顶层设计文件，运行可用。-an 8 bit multiplier combined with 8 bit adder using a design by way of timing,and it use a way of Itemized shift to implement the multiply.It include some little module and