The scope of system instructions are not covered in this book. Refer to the Intel and AMD specific documentation for full specifications. They are considered OS/System instructions and as such will not be discussed in this book. Some are accessible by the application layer at the low privilege level but are not part of the general application development process. They are only referenced here for informational purposes and to ensure this book lists all instructions available at the time of its publication.
Windows Assembly Language and Systems Programming: 16- and 32-Bit Low-Level Programming for the PC and Windows