Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!decwrl!hplabs!hpda!hpcuhb!hp-ses!hpcea!hpdtl!wallace
From: wallace@hpdtl.HP.COM (David E. Wallace)
Newsgroups: comp.lang.lisp
Subject: Re: Unknown functions in Common Lisp
Message-ID: <7080001@hpdtl.HP.COM>
Date: 21 Feb 89 19:18:32 GMT
References: <5010@abo.fi>
Organization: HP Design Tech. Lab., Palo Alto, CA
Lines: 26

These are system calls to local extensions in some dialect of Common
Lisp.  These functions are all defined in HP Common Lisp I; the definitions
from my manual are:

(sys:gc)
Initiate an immediate garbage collection; returns NIL.

(sys:listener-abort)
Exit all listeners by means of a THROW.  It then invokes a new top level
listener after setting *applyhook* and *evalhook* to NIL.
In other words, abort all the way back up to the top level.

(sys:exit)
Terminate lisp.

(sys:save-world ... )
Save an executable Lisp image.  The parameters are:
(system:save-world file &OPTIONAL init-forms message),
where file is the file to be created (string, pathname, or symbol),
init-forms is a list of forms to be executed when the new image is started,
and message is a message to be displayed when the new image is started.

Most Common Lisps have some variety of these functions; they have different
names (and slightly different features) in different dialects.

Dave W.		(david_wallace@hplabs.hp.com)