Is "un-nopping" memory addresses possible?

[Suicide Bomb]

Is "un-nopping" memory addresses possible? If so, how do I do it? Thanks.

I'd also like to ask the memory address of SA-MP's SetWeather in 0.3.7.

 

[springfield]

Write the original bytes back, use ce/olly to get the original instruction at that mem. address.

 

[Suicide Bomb]

Thanks for the answer, I'll try what you've said.