代码主要说明了乘积检波器的vhdl描述，同时压缩包中还附带的与之相关的rom,mul4*4乘法器的vhdl描述。 用quartus2软件即可打开使用。-Code shows the main detectors of vhdl product descr iptions, at the same time compressed package also comes with associated rom, mul4* 4 multiplier vhdl descr iption. Quart