Re: And another IIgs question: change BRAM without GS/OS?

From	dempson@actrix.gen.nz (David Empson)
Newsgroups	comp.sys.apple2.programmer
Subject	Re: And another IIgs question: change BRAM without GS/OS?
Date	2012-01-13 21:17 +1300
Organization	A noiseless patient Spider
Message-ID	<1kdttgk.1g7lenyhp3p3N%dempson@actrix.gen.nz> (permalink)
References	<ea96b023-5fce-45a3-b908-9e563b78b9b8@do4g2000vbb.googlegroups.com>

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Ivan X <ivan@ivanx.com> wrote:

> I'd like to be able to perform what the "Network" control panel does
> -- switch between booting into GS/OS or ProDOS 8 -- without needing
> the Network control panel. I'm assuming it changes something in
> battery RAM. I'm also assuming there's got to be some way of changing
> stuff into there from assembly without needing GS/OS loaded.

If memory serves, the Network control panel's setting for which OS to
boot gets stored in the ATINIT file, not in the parameter RAM. It should
be easy enough to confirm this by copying the file, changing the setting
and comparing ATINIT with the copy.

-- 
David Empson
dempson@actrix.gen.nz

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And another IIgs question: change BRAM without GS/OS? Ivan X <ivan@ivanx.com> - 2012-01-12 21:00 -0800
  Re: And another IIgs question: change BRAM without GS/OS? dempson@actrix.gen.nz (David Empson) - 2012-01-13 21:17 +1300
  Re: And another IIgs question: change BRAM without GS/OS? A2CPM <a2@wilserv.com> - 2012-01-13 06:57 -0800
  Re: And another IIgs question: change BRAM without GS/OS? "ict@ccess" <gids.rs@sasktel.net> - 2012-01-13 08:32 -0800
  Re: And another IIgs question: change BRAM without GS/OS? A2CPM <a2@wilserv.com> - 2012-01-15 10:20 -0800
  Re: And another IIgs question: change BRAM without GS/OS? A2CPM <a2@wilserv.com> - 2012-01-15 11:02 -0800
    Re: And another IIgs question: change BRAM without GS/OS? Geoff Body <gbody4@bigpond.com> - 2012-01-16 05:32 -0800
      Re: And another IIgs question: change BRAM without GS/OS? Antoine Vignau <antoine.vignau@laposte.net> - 2012-01-16 12:40 -0800
        Re: And another IIgs question: change BRAM without GS/OS? Ivan X <ivan@ivanx.com> - 2012-01-16 13:18 -0800
          Re: And another IIgs question: change BRAM without GS/OS? Geoff Body <gbody4@bigpond.com> - 2012-01-17 05:40 -0800

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