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From: uereder@immd4.informatik.uni-erlangen.de (Uwe Reder )
Newsgroups: comp.sys.atari.st.tech
Subject: Re: Cookie Jar information...
Message-ID: <1991Feb8.121005.13888@informatik.uni-erlangen.de>
Date: 8 Feb 91 12:10:05 GMT
References: <8571204@nuthaus.UUCP>
Organization: CSD., University of Erlangen, Germany
Lines: 48

nut@nuthaus.UUCP (Adam G. Tilghman) writes:


>  I am currently writing a program which, if the system's cookie jar 
>does not already exist (or is too small) will need to create a new 
>one.  I am somewhat familiar with the jar's specifications, but there
>are some things that I need help with.
>  First of all, do I have to install a reset-routine which clears
>the $5a0 variable?  It makes sense to do so, since the globals aren't
>cleared after reset, but if I don't have to write the routine, so
>much the better (I like Pascal more than 68K!)

I think you have to like 68k! I wrote such a programme on my own, in
assembler language. You are right $5a0 is not cleared after reset. So you
have to do this, because of uninstalling the cookie jar the pointer
of $5a0 points to a so called cookie jar... your system may be confused of
this!

>  Second, is it kosher for my program to remove the cookie jar (or
>restore it to its old value) once it exits?  Do GEM or TOS place
>cookies in there after system startup?

I think its better to remove it.
TOS places several systemcookies. For example one for the processor used.
I can send you a list of the systemcookies later on. Please read on
'News' again, 4 or 5 days later, and watch out for my second reply.

>  Third, what are the default system cookies? I have heard mention
>of them describing the system config, and if I am going through
>the trouble of installing a jar, I might as well put them in also?

Wait for it...

>  As you can tell, I'm poor enough to not be able to afford the 
>Developer's documentation.  Hey, Atari, do you want to apply student
>discounts to the doc's?  Most hackers are in college, and probably
>would provide a nifty new software base if given the doc's!

Uwe Reder (University of Erlangen - Germany)

================================================================================
      Uwe Reder - Kopernikusstr.7 - D8074 Gaimersheim - Tel.: 08458/1239
               e-mail: uereder@faui09.informatik.uni-erlangen.de
================================================================================
-- 

      Toerless Eckert       | /C=de/A=dbp/P=uni-erlangen/OU=informatik/S=eckert
Imagine it is war and your tv set is broken | eckert@informatik.uni-erlangen.de