It's better to use $4101 in case they change it in future ROM versions. Trey Jazz wrote: > 0C29 > > -----Original Message----- > From: caymran <caymran@geocities.com> > To: assembly-86@lists.ticalc.org <assembly-86@lists.ticalc.org> > Date: Tuesday, February 17, 1998 9:35 PM > Subject: A86: Rom Call > > > > >What was the call to shut off the calc? > > > >thanks, > >Caymran > >