Anyone got the DOS call needed to clear the screen entirely and move the cursor to the very top so you can start up there?

Also, is there a way to clear only a certain part of the screen?

I've found a few through a search, but they're all for FASM or TASM or pretty much anything that ISN'T MASM. One of them actually worked, but it randomly works and randomly crashes the whole program with some error.

So anyone got the proper calls? Thanks.