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From: kskelm@happy.colorado.edu
Newsgroups: comp.sys.amiga.programmer
Subject: Re: 2.0 Compatibility problem
Message-ID: <1991May16.200647.1@happy.colorado.edu>
Date: 17 May 91 02:06:47 GMT
Sender: news@colorado.edu (The Daily Planet)
Organization: University of Colorado, Boulder
Lines: 27
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>>   The problem is this: my software package runs on EVERY machine under 1.3,
>>and I worked to get it 2.0 compatible, which it IS, on every machine BUT the
>>A3000.  That is, it works FINE on a 3000 under 1.3, but not 2.0; An A3000/2.0
>>is the ONLY platform it refuses to run on.
>
>	Does it work on an A2000 with a 68030 card, under 2.0 with the data and
>code caches enabled? If not, than you've got either a self-modifying code
>problem with the code cache, or a 68020/030 instruction set compatibility
>problem (on the 020/030/010, MOVE SR,xxx is a privileged instruction).
>	The other thing you might have problems with is that the A3000 has memory
>above the 16M addressing limit of the 68000.

    The software works fine on *EVERY* platform but A3000 under 2.0; it works
on a 500, a 1000, a 2000, a 2500 (all in both 1.3 and 2.0), and it works
on a 3000 in 1.3, but *NOT* in 2.0.

    It is written in Benchmark Modula-2, so I would *assume* it has no
self-modifying code.  Most perplexing.

+------------------------------------------------------------+
|      ///  Kevin "Visionary will be done RSN" Kelm          |
|     ///  kskelm@happy.colorado.edu                         |
| \\\/// "Reality is subjective-- if you can make your own,  |
|  \XX/ then who's crazy? That's entertainment software!"-me |
| C code run.  Run, code, run--PLEASE!                       |
+------------------------------------------------------------+