Do tumbleweed supports old processor via c3 samuel 2 ?
Good question.
The base system probably yes. But it depends on your use case too, certain applications do at least require SSE even on 32bit, AFAICT this CPU only supports MMX.
Best thing is to download a LiveCD I suppose and try out yourself whether it works for you.
http://download.opensuse.org/tumbleweed/iso/