80386是一种先进的32位微处理器的多任务优化

操作系统和应用需要很高的设计

性能。 32位寄存器和数据路径支持32位地址

和数据类型。该处理器可以处理多达4 GB的物理

内存和64兆兆字节（246字节的虚拟内存）。片上

内存管理的设施包括：地址转换寄存器，

先进的多任务硬件，一个保护机制，分页的虚拟

内存。特别调试寄存器提供的数据和代码甚至断点

ROM中的软件。-The 80386 is an advanced 32-bit microprocessor optimized for multitasking

operating systems and designed for applications needing very high

performance. The 32-bit registers and data paths support 32-bit addresses

and data types. The processor can address up to four gigabytes of physical

memory and 64 terabytes (246 bytes) of virtual memory. The on-chip

memory-management facilities include address translation registers,

advanced multitasking hardware, a protection mechanism, and paged virtual

memory. Special debugging registers provide data and code breakpoints even

in ROM-based software.