Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!ucsd!ucbvax!ulkyvx.BITNET!twdorr01
From: twdorr01@ulkyvx.BITNET (ThomasD)
Newsgroups: comp.sys.apple2
Subject: Re: Grumble, grumble, grumble. . .
Message-ID: <9012050038.AA19541@lilac.berkeley.edu>
Date: 5 Dec 90 00:38:46 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: University of Louisville, $peed $cientific
Lines: 17

In some article WKF2298@RITVAX.ISC.RIT.EDU (Wonko the Sane) writes:
>       Okay, so I took the address found at $C107. . . which is supposed to
>be the location of the output for slot 1 (Cx07) and plugged it into $36/$37.
>       No help!  When I check those locations, they are always set back to
>their original value. . . it never stays set to my new value.

I don't know if this is going to help or not, but I used to mess around with
changing that stuff too and quickly learned that under ProDOS (I assume that's
what you're using), any changes made to $36 and $37 by anything other than
ProDOS itself are never really made.  The reason (I guess.  I could never find
docs on it) is that ProDOS keeps it's own location for that stuff and
consistantly changes $36/$37 to contain those other values.  After a little
disassembly I found the locations to be like $BE38/$BE39.  I can't remember
exactly for sure, but it's somewhere around there.  And immediately following
that is the values that get placed into $38/$39.  Let me know if this helps.

ThomasD