I am trying to learn assembly and I just downloaded yasm but I am reading that it only supports x86 or at least that's what I'm getting. Please let me know if there is another option or if it is still possible to use yasm on my machine.

I am thinking that maybe I should download nasm seeing how I got a powerbook g4 1.5ghz 15" with lubuntu on it. Please shed some light if you have some experience on this, Thanx.