kernel thread

In effort to have a better understanding of System Architecture (main course next semester) I'm writing a little kernel.
It will have at least one runtime for a language that is not C or C++.

What language do you think I should pick, and if the runtime requires a garbage collector (D, Go, Python) should I add one to the kernel as well?

>>3

Im comfortable with assembly. I'd rather have a slightly higher level language than Forth so I can write a basic IPV6 stack and run a webserver. Forth doesn't look like the ideal language for heavy string manipulation and therefore isn't suitable for anything in the application-layer.