What does mov eax, ??? mean in assembly language?

Question

assembler

What are these numbers, are they some kind of operation or function codes? Doesn't wobble at all.
Or the same commands ret 1 ret 2 ret 4, I can not find a table, or even information about them.

Answer 1

In any textbook, almost on the first pages it is described.

Answer 2

none7, but there is no Russian Wikipedia? Then it doesn't wobble. if there is not a single Russian source.

Daniel , do you have a conscience? Or brains?

Answer 3

mov eax, ???
VVVVV
eax = ???
---------
ret 4
VVVVV

add esp, 4
ret