// globale variablenliste

vip
	host						host info
		hostname
		µP, endian, alignment

	appl						interpreter info
		applname, version
		double size, malloc		compile-time options

	rsrc
		<filename>				geladenes script
			core				compiled vip code
			constants			number and text literals
			rowcolxref			rowcol/ip xref list for error position
			cachefile			opt. compiler cache
			filename			opt. script filename

	script				script from command line
	verbose				flag from -v
	runtype
	env
	prefs
	globals				main data sink
	user
	stdio
		stdin0			#0	original stream
		stdout0			#1	original stream
		stderr0			#2	original stream
		ttyattr			current attr set for tty

	streams				open streams	???

	threads
		[1]
			wdir				akt. arbeitsverzeichnis
			prio, state usw.	status info
			stack,heap,ip		laufzeitdaten


proc:
	pro instanz wird das zugehörige rsrc.filename 1x gelockt

	-> rsrc.dateiname			=> lock
	-> constants				-> für tNUM und tSTR
	-> start_of_proc			=> ip und los geht's!

	proc:
		tPROC.argc				<-- proc literal => kein statement!
		( <argumente> )
		{ <statements> }

	ground level:				include, require, run, call, sys, eval
		<statements>
		tEOF

	ground level:				eval ((function))
		tRETURN
		<value>
		tEOF