Is that series endorsed by xorpd or an account just called xorpd? Udemy is known for allowing anyone to steal, upload, and profit from video series.
EDIT: Looks like it is. https://www.xorpd.net/pages/x86_adventures.html
EDIT: Looks like it is. https://www.xorpd.net/pages/x86_adventures.html
The exercises are open source and can be found here: https://github.com/xorpd/asm_prog_ex I think that more experienced developers can take the instruction set and bash through the exercises.