采用VHDL实现的CPU设计代码，工程中包含测试波形。包含CPU设计文档，如指令格式设计和各功能模块说明和指令测试序列，能下载到实验台上直接运行。-CPU design is realized by VHDL Language, the project contains the test waveform. Contains the CPU design documents, such as directives format, instructions for each function mo