Xref: utzoo comp.sys.apple:23977 comp.sys.apple2:3773
Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uwm.edu!rutgers!att!watmath!watserv1!rmhennin
From: rmhennin@watserv1.waterloo.edu (Roland M. Henning)
Newsgroups: comp.sys.apple,comp.sys.apple2
Subject: AppleSoft Basic question
Keywords: vtab htab call
Message-ID: <1990Jul20.045331.18045@watserv1.waterloo.edu>
Date: 20 Jul 90 04:53:31 GMT
Distribution: comp
Organization: University of Waterloo
Lines: 24


Hi there,

I have a question concerning some AppleSoft Basic code.
The code runs on an Apple II+.

I would like to know exactly what the following code does:

          vtab 9 : htab 1 : call -868

I am unfamiliar with this code but from the context I'm guessing that it
has to do with cursor postioning on the screen.  If possible I would like
to know exactly what call -868 does.  I understand that it is a machine 
subroutine call but I don't know exactly what for.

Any comments are welcome.

I don't normally read this newsgroup but I will follow it for a while.

Email: rmhennin@watserv1.waterloo.edu or post if you feel it necessary.

Sorry to use up bandwidth.

Thanks.