Alright sure, instruction sets change between architectures and assembly languages, but most of them are the same.
A good rule is to have the 10-20 most common memorized and then to look up the rare instructions as you go. To start off, use cheat sheets.
I'm a fan of this one but it is a bit long: http://www.jegerlehner.ch/intel/IntelCodeTable.pdf
This one is much more manageable for right now: https://imgv2-2-f.scribdassets.com/img/document/21143282/original/46f3e4e2ca/1607612475?v=1
- Submit text discussing anything that you struggled with and didn't understand, and what you did to overcome that problem. If you still don't understand, tell us what specifically you did not understand.