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设计拥有我国自主版权的微处理器有着重大意义 .高特权级系统调用算法及高特权级系统调用测试单元PCU是拥有保护机制微处理器的重要组成部分 ,文中探讨了保护方式下高特权级系统调用的数据结构、定义 ,给出了高特权级系统调用算法 ,提出了高特权级系统调用测试单元 PCU的细胞群结构 ,并指出细胞是高特权级系统调用测试单元 PCU的基本测试单位 .细胞群结构概念的提出解决了微处理器保护测试单元结构设计的难题 ,使设计拥有自主版权的支持保护方式的微处理器成为可能 .细胞群结构已用于航空嵌入式拥有保护机制微处理器 NCS的设计 ,经 EDA工具 MENTOR GRAPHICS仿真与综合 ,验证了其正确性与有效性
It is of great significance to design microprocessors with independent copyright in our country.The high privilege level system invocation algorithm and high privilege level system invocation test unit PCU is an important part of microprocessors possessing the protection mechanism.The paper discusses the protection of high privilege level system The data structure and definition of the call are given, and the high-privilege-level system call algorithm is given. The cell structure of the high-privilege-level test unit PCU is proposed and the cell is the basic test unit of the high privilege level system test unit PCU. The proposed concept of group structure solves the problem of structural design of microprocessor protection test unit and makes it possible to design microprocessors with independent copyright protection and protection methods.Cell population structure has been used in aviation embedded protection mechanism microprocessor NCS The design, by the EDA tool MENTOR GRAPHICS simulation and synthesis, verify its correctness and effectiveness