摘要
本文分析了80486CPU的工作方式切换机理和寻址方式机制,指出了工作方式切换的要点和步骤,提出了保护方式下的DOS中断调用方法和在实方式下直接访问4GB内存的方法。
This paper makes an analysis of the principle about changed operation mode and the access operation of 80486CPU, main factors and procedure of changed operation mode was suggested, the approaches are posed for access 4GB memory and DOS interrupt in protective mode.
出处
《湖北汽车工业学院学报》
1997年第1期13-18,共6页
Journal of Hubei University Of Automotive Technology
