计算机组成原理课程设计.模型机设计四大类指令共十六条，其中包括算术逻辑指令、I／O指令、访问存储器及转移指令和停机指令。-Principles of Computer Organization Course Design. Model design commands a total of four major categories of 16, including the arithmetic logic instruction, I/O commands, access memory and transfer of command and shutdown command.