This document contains the following: Volume 1: Describes the architecture and programming environment of processors supporting IA-32 and Intel® 64 architectures. Volume 2: Includes the full instruction set reference, A-Z. Describes the format of the instruction and provides reference pages for instructions. Volume 3: Includes the full system programming guide, parts 1, 2, 3, and 4. Describes the operating-system support environment of Intel® 64 and IA-32 architectures, including: memory management, protection, task management, interrupt and exception handling, multi-processor support, thermal and power management features, debugging, performance monitoring, system management mode, virtual machine extensions (VMX) instructions, Intel® Virtualization Technology (Intel® VT), and Intel® Software Guard Extensions (Intel® SGX). Volume 4: Describes the model-specific registers of processors supporting IA-32 and Intel® 64 architectures.