实地址

实地址CACHE与虚地址CACHE

Real address cache and virtual address cache

阐述内存的访问机制、保护方式与实地址方式的差别，以及它们之间转换时的连代关系，说明实地址方式下访问可达4GB内存空间的方法。

Expound the mechanism of access memory , tell protected virtual address mode from real address mode , and relation in conversion each other . Explain the method of access memory under real address mode .

实地址就是当禁用了虚拟地址到物理地址的转换时所生成的地址。

The real address is the address generated when virtual to physical address translation is disabled .

在分页存储器系统中，虚或实总地址中定义包含所需地址的页面的字段（中的内容）。

That field of the total address ( virtual or physical ) that defines the page containing the desired address in apaged memory system .

在采用实模式访问内存时，物理处理器会将RMO寄存器的值与分区特定的实地址相加，以使得它能够引用物理内存中的实地址。

Whenever memory is accessed in real mode , the physical processor adds the value of the RMO register to the partition 's specific real address so that it references a true address in the physical memory .