IP核和乘法运算模块分别有两个输入端口a、b和clk时钟脉冲信号及一个输出端口p，用例化语句将这两个模块合成一个乘法器后就生成了由两个输入端口a、b和clk时钟脉冲信号及两个输出端口p1、p2组成。-IP cores and multiplication module respectively, the two input ports of a, b, and clk clock signal and an output port p, these two modules with the instantiation statements Synthesis of a multiplier by two input ports, a, b are generated after and the the CLK clock pulse signals and two output ports p1, p2.