一个关于设计简单ALU的说明书，当中附有源代码，测试可行，同时效率比较高，算法也比较完善-A simple ALU design specification, which attached to the source code, test feasible, while more efficient, the algorithm is also relatively perfect

描述乘法器，组成原理vhdl实现一位乘法器程序代码-Describe the multiplier, the composition principle to achieve a multiplier vhdl code