x86 Instruction Set

These websites provide reference documentation of the x86 instruction set:

• https://kernfunny.org/x86/ / https://c9x.me/x86/
• https://www.felixcloutier.com/x86/index.html
  • Linked from Godbolt
• http://ref.x86asm.net/coder.html
  • It provides an index for single- and double-byte opcodes based on the bytes