The complete Intel Processor User Manual in English consists of 6 sections.

intel 处理器用户手册（英文），全，共6篇 包括：Volume1_Basic Architecture.pdf Volume2A_Instruction Set Reference, A-M.pdf Volume2B_Instruction Set Reference, N-Z.pdf Volume3A_System Programming Guide, Part 1.pdf Volume 3B_System Programming Guide, Part 2.pdf