I believe later versions of setexit/reset (which were published in the USENIX
newsletter, and I believe were in PWB/UNIX 1.0) had "reset" take an argument
like "longjmp" which was "returned" by "setexit" when it came back from the
"reset".
Guy Harris
{seismo,mcnc,brl-bmd,allegra}!rlgvax!guy