itsy bitsy Unix

Thanks for the suggestions -- maybe I should be a little more specific. Jim L suggested Contiki, but actually Contiki is precisely *not* what I'm after (even though it's a quasi-multitasking environment for small systems); it's unsuitable for the task because: - source is in C (I should have specified I want assembler if possible) - it needs more than 16K to be useful anyway - it doesn't have a "classic" feel to it - it's not preemptively multitasking Also, I know Adam Dunkels well, he's a good guy, and I'll keep my pointy nose out of his active development. ;) Heinz suggested Tiny UNIX, which sounds like Mini UNIX. I googled for it, but all I get are tiny *Linux* distributions. Can anyone point me in the right direction? The closest suggestion to the feel I'm looking for was Zane's suggestions of RSX-11C for the PDP-11, or even better was TSS/8 for the PDP-8. The PDP-8 is actually an architecture very amenable to what I'm looking at doing. Do these have available assembler source? What other multitasking environments, Unixy or not, would be practical on a PDP-8 with 16kW or less? Or other similar mainframe? Thanks for all the suggestions; I should have been much more specific about what I was after. -- ---------------------------------- personal: http://www.armory.com/~spectre/ -- Cameron Kaiser, Floodgap Systems Ltd * So. Calif., USA * ckaiser at floodgap.com -- The best things in life are sold out. --------------------------------------