Linux Kernel Module Cheat

Parent section: Section 28.10, “NOP instructions”

There are a few different ways to encode NOP, notably MOV a register into itself, and a dedicated miscellaneous instruction.

Example: userland/arch/arm/nop.S

Try disassembling the executable to see what the assembler is emitting:

Bibliography: https://stackoverflow.com/questions/1875491/nop-for-iphone-binaries