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Vol. 2A 1-1
CHAPTER 1
ABOUT THIS MANUAL
The Intel
®
64 and IA-32 Architectures Software Developer’s Manual, Volumes
2A & 2B: Instruction Set Reference (order numbers 253666 and 253667) are part of
a set that describes the architecture and programming environment of all Intel 64
and IA-32 architecture processors. Other volumes in this set are:
• The Intel
®
64 and IA-32 Architectures Software Developer’s Manual, Volume 1:
Basic Architecture (Order Number 253665).
• The Intel
®
64 and IA-32 Architectures Software Developer’s Manual, Volumes
3A & 3B: System Programming Guide (order numbers 253668 and 253669).
The Intel
®
64 and IA-32 Architectures Software Developer’s Manual, Volume 1,
describes the basic architecture and programming environment of Intel 64 and IA-32
processors. The Intel
®
64 and IA-32 Architectures Software Developer’s Manual,
Volumes 2A & 2B, describe the instruction set of the processor and the opcode struc-
ture. These volumes apply to application programmers and to programmers who
write operating systems or executives. The Intel
®
64 and IA-32 Architectures Soft-
ware Developer’s Manual, Volumes 3A & 3B, describe the operating-system support
environment of Intel 64 and IA-32 processors. These volumes target operating-
system and BIOS designers. In addition, the Intel
®
64 and IA-32 Architectures Soft-
ware Developer’s Manual, Volume 3B, addresses the programming environment for
classes of software that host operating systems.
1.1 IA-32 PROCESSORS COVERED IN THIS MANUAL
This manual set includes information pertaining primarily to the most recent Intel 64
and IA-32 processors, which include:
• Pentium
®
processors
• P6 family processors
• Pentium
®
4 processors
• Pentium
®
M processors
• Intel
®
Xeon
®
processors
• Pentium
®
D processors
• Pentium
®
processor Extreme Editions
• 64-bit Intel
®
Xeon
®
processors
• Intel
®
Core™ Duo processor
• Intel
®
Core™ Solo processor
• Dual-Core Intel
®
Xeon
®
processor LV