(a+b)*(c+d)这个分别用一地址指令和二地址指令怎么算,,,,,,,,
http://wenku.baidu.com/link?url=hTcjTRlV7hGiBxM8yo48Ntg7tbrWOjPXzUCXMrnKTzxb75Pf4hzKd31H3T4Lvse_Q91SchAJoCTDfrwzRLy8p9EoNCpQUpu1dHJdzKzRpZG