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<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"><HTML><HEAD><TITLE>80386 Programmer's Reference Manual -- Chapter 01</TITLE></HEAD><BODY><B>up:</B> <A HREF="toc.htm">Table of Contents</A><BR><B>next:</B> <A HREF="s01_01.htm">1.1 Organization of This Manual</A><P><HR><P><H1>Chapter 1 -- Introduction to the 80386</H1><P>The 80386 is an advanced 32-bit microprocessor optimized for multitaskingoperating systems and designed for applications needing very highperformance. The 32-bit registers and data paths support 32-bit addressesand data types. The processor can address up to four gigabytes of physicalmemory and 64 terabytes (2^(46) bytes) of virtual memory. The on-chipmemory-management facilities include address translation registers,advanced multitasking hardware, a protection mechanism, and paged virtualmemory. Special debugging registers provide data and code breakpoints evenin ROM-based software.<P><A HREF="s01_01.htm">1.1 Organization of This Manual</A><BR><A HREF="s01_02.htm">1.2 Related Literature</A><BR><A HREF="s01_03.htm">1.3 Notational Conventions</A><BR><P><HR><B>up:</B> <A HREF="toc.htm">Table of Contents</A><BR><B>next:</B> <A HREF="s01_01.htm">1.1 Organization of This Manual</A></BODY>⌨️ 快捷键说明
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