Intel® 64 and IA-32 Architectures Software Developer’s Manual Combined Volumes: 1, 2A, 2B, 2C, 2D, 3A, 3B, 3C, 3D and 4
The link below refers to the manual produced in April 2022, which is no longer available on Intel's website. However, newer versions can be found here
- Link to the version "April 2022" Intel manual: April 2022 Manual