英特尔64位和IA-32架构软件开发人员手册（全套最新）+最新历史更新说明-2022年4月

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Intel® 64 and IA-32 Architectures

Software Developer’s Manual

Combined Volumes:

1, 2A, 2B, 2C, 2D, 3A, 3B, 3C, 3D and 4

NOTE: This document contains all four volumes of the Intel 64 and IA-32 Architectures Software

Developer's Manual: Basic Architecture, Order Number 253665; Instruction Set Reference A-Z, Order

Number 325383; System Programming Guide, Order Number 325384; Model-Specific Registers, Order

Number 335592. Refer to all four volumes when evaluating your design needs.

Order Number: 325462-077US

April 2022

Notices & Disclaimers

Intel technologies may require enabled hardware, software or service activation.

No product or component can be absolutely secure.

Your costs and results may vary.

You may not use or facilitate the use of this document in connection with any infringement or other legal analysis concerning

Intel products described herein. You agree to grant Intel a non-exclusive, royalty-free license to any patent claim thereafter

drafted which includes subject matter disclosed herein.

All product plans and roadmaps are subject to change without notice.

The products described may contain design defects or errors known as errata which may cause the product to deviate from

published specifications. Current characterized errata are available on request.

Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability,

fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of

dealing, or usage in trade.

Code names are used by Intel to identify products, technologies, or services that are in development and not publicly

available. These are not “commercial” names and not intended to function as trademarks.

No license (express or implied, by estoppel or otherwise) to any intellectual property rights is granted by this document, with

the sole exception that a) you may publish an unmodified copy and b) code included in this document is licensed subject to

the Zero-Clause BSD open source license (0BSD), https://opensource.org/licenses/0BSD. You may create software

implementations based on this document and in compliance with the foregoing that are intended to execute on the Intel

product(s) referenced in this document. No rights are granted to create modifications or derivatives of this document.

names and brands may be claimed as the property of others.

Intel® 64 and IA-32 Architectures

Software Developer’s Manual

Volume 1:

Basic Architecture

NOTE: The Intel 64 and IA-32 Architectures Software Developer's Manual consists of four volumes:

Basic Architecture, Order Number 253665; Instruction Set Reference A-Z, Order Number 325383;

System Programming Guide, Order Number 325384; Model-Specific Registers, Order Number

335592. Refer to all four volumes when evaluating your design needs.

Order Number: 253665-077US

April 2022

Notices & Disclaimers

Intel technologies may require enabled hardware, software or service activation.

No product or component can be absolutely secure.

Your costs and results may vary.

You may not use or facilitate the use of this document in connection with any infringement or other legal analysis concerning

Intel products described herein. You agree to grant Intel a non-exclusive, royalty-free license to any patent claim thereafter

drafted which includes subject matter disclosed herein.

All product plans and roadmaps are subject to change without notice.

The products described may contain design defects or errors known as errata which may cause the product to deviate from

published specifications. Current characterized errata are available on request.

Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability,

fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of

dealing, or usage in trade.

Code names are used by Intel to identify products, technologies, or services that are in development and not publicly

available. These are not “commercial” names and not intended to function as trademarks.

No license (express or implied, by estoppel or otherwise) to any intellectual property rights is granted by this document, with

the sole exception that a) you may publish an unmodified copy and b) code included in this document is licensed subject to

the Zero-Clause BSD open source license (0BSD), https://opensource.org/licenses/0BSD. You may create software

implementations based on this document and in compliance with the foregoing that are intended to execute on the Intel

product(s) referenced in this document. No rights are granted to create modifications or derivatives of this document.

names and brands may be claimed as the property of others.

Vol. 1 iii

CONTENTS

PAGE

CHAPTER 1

ABOUT THIS MANUAL

1.1 INTEL

64 AND IA-32 PROCESSORS COVERED IN THIS MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

1.2 OVERVIEW OF VOLUME 1: BASIC ARCHITECTURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

1.3 NOTATIONAL CONVENTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

1.3.1 Bit and Byte Order. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6

1.3.2 Reserved Bits and Software Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6

1.3.2.1 Instruction Operands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6

1.3.3 Hexadecimal and Binary Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7

1.3.4 Segmented Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7

1.3.5 A New Syntax for CPUID, CR, and MSR Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7

1.3.6 Exceptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8

1.4 RELATED LITERATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

CHAPTER 2

INTEL

64 AND IA-32 ARCHITECTURES

2.1 BRIEF HISTORY OF INTEL

64 AND IA-32 ARCHITECTURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2.1.1 16-bit Processors and Segmentation (1978) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

2.1.2 The Intel

286 Processor (1982). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

2.1.3 The Intel386

™

Processor (1985) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

2.1.4 The Intel486

™

Processor (1989) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

2.1.5 The Intel

Pentium

Processor (1993). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2

2.1.6 The P6 Family of Processors (1995-1999) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2

2.1.7 The Intel

Pentium

4 Processor Family (2000-2006). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

2.1.8 The Intel

Xeon

Processor (2001- 2007). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

2.1.9 The Intel

Pentium

M Processor (2003-2006) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

2.1.10 The Intel

Pentium

Processor Extreme Edition (2005) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4

2.1.11 The Intel

Core

™

Duo and Intel

Core

™

Solo Processors (2006-2007) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-4

2.1.12 The Intel

Xeon

Processor 5100, 5300 Series and Intel

Core

™

2 Processor Family (2006) . . . . . . . . . . . . . . . . . . . . . . . .2-4

2.1.13 The Intel

Xeon

Processor 5200, 5400, 7400 Series and Intel

Core

™

2 Processor Family (2007) . . . . . . . . . . . . . . . . . .2-4

2.1.14 The Intel

Atom® Processor Family (2008) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

2.1.15 The Intel

Atom® Processor Family Based on Silvermont Microarchitecture (2013) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

2.1.16 The Intel

Core

™

i7 Processor Family (2008) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

2.1.17 The Intel

Xeon

Processor 7500 Series (2010) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

2.1.18 2010 Intel

Core

™

Processor Family (2010) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6

2.1.19 The Intel

Xeon

Processor 5600 Series (2010) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6

2.1.20 The Second Generation Intel

Core

™

Processor Family (2011) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6

2.1.21 The Third Generation Intel

Core

™

Processor Family (2012) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6

2.1.22 The Fourth Generation Intel

Core

™

Processor Family (2013) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7

2.2 MORE ON SPECIFIC ADVANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

2.2.1 P6 Family Microarchitecture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7

2.2.2 Intel NetBurst

Microarchitecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8

2.2.2.1 The Front End Pipeline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-9

2.2.2.2 Out-Of-Order Execution Core . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

2.2.2.3 Retirement Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

2.2.3 Intel

Core

™

Microarchitecture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

2.2.3.1 The Front End . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

2.2.3.2 Execution Core . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

2.2.4 Intel Atom®

Microarchitecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12

2.2.5 Nehalem Microarchitecture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

2.2.6 Sandy Bridge Microarchitecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

2.2.7 SIMD Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

2.2.8 Intel® Hyper-Threading Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

2.2.8.1 Some Implementation Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

2.2.9 Multi-Core Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18