The assembly languages are all little used enough (I'm guessing) that there aren't proper language grammars made yet. However they are really easy to make, just take a look at one of them. Basically just assign variables, functions, comments, etc to a scope (use the asm language grammars you have as an example) then use the color options to change the colors. It is not that hard, I made one for MIPS when I got frustrated with my MIPS project for school. :)