AstridToday I learned that x86 has a floating point version of the `nop` instruction, called `fnop`. It does nothing, but unlike the regular `nop` it uses the floating point unit to do nothing.
Ethan@acqrel please tell me there are simd variants too
@ethan Not that I'm aware of. But the regular `nop` can take a memory operand like `nop dword ptr [rax]` if you want a `nop` that does nothing with the address.
Squeakable 
@squeakable @acqrel I would be super interested if there's been a practical instance of nop stenography