Path: utzoo!utdoe!generic!pnet91!ericmcg
From: ericmcg@pnet91.cts.com (Eric Mcgillicuddy)
Newsgroups: comp.sys.apple2
Subject: Re: safe 0-page addresses
Message-ID: <172@generic.UUCP>
Date: 13 Nov 90 15:15:09 GMT
Sender: root@generic.UUCP
Organization: People-Net [pnet91], Etobicoke, ON
Lines: 21

>I can never keep track of what 0-page addresses are used by
>what program and I need about 7 of them (3 pairs plus one)
>that won't be used by applesoft, basic.system, or prodos.
>Does anyone have any 0-page maps (with actual meanings
>rather than just saying which ones are used)? I only have
>monitor locations now.

From Inside the Apple //c:
$06, 07,08, 09, 19, 1a, 1b, 1c, 1d, 1e, ce, cf, d7, e3, eb, ec, ed, ee ,ef,
fa, fb, fc, fd, fe, ff

These are all available. Of course there may be mage 3 utilities that use some
of these, one knows?

and if you are using HyperC, nothing above $c3 is available.

If you are really worried, just swap the locations as you need them. 7 bytes
is not much space.

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