Answer 1

Assembly is specific to each processor and is not a common language that can be learned from a general tutorial site.

Answer 2

So the 'conclusion' of this discussion for the average reader may be that learning msdos and assembly could be quite educational and enjoyable but it also could be a fairly frustrating and futile journey (depending on your goals and personality)??

Answer 3

you can completely understand assembly from here:
https://www.tutorialspoint.com/assembly_programming/index.htm