(user)  256 .dict .def user .begin
(util.jam) .run
(errordefs.jam) .run
.end
(.start)(.version
user .begin).cvx .def
.start
(graphics.jam).run (jamsave.jam).run
$commands .begin
user (.dup .itype 7 .eq (.exch .def)(.pop .pop) /ifelse).cvx .dictforall
.end