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Article View: comp.sys.atari.st
Article #35225

Re: illegal instructions

#35225
From: Hartmut Semken
Date: Sat, 26 Nov 1988 09:36
33 lines
1970 bytes
In article <1236@atari.UUCP> apratt@atari.UUCP (Allan Pratt) writes:
>In article <881116021045.085584@DOCKMASTER.ARPA> Cothrell@DOCKMASTER.ARPA writes:
>> Well, I just tried to get cute and replace the 68000 in my 1040 with a
>> 68010.  Didn't work.
>
>No kidding.  The 68010's stack frame format for all exceptions is
>different from the 68000's.  This means there is an extra word between
>the stack pointer and the arguments to a GEMDOS, BIOS, or XBIOS call
>made from Super mode.  It is possible to write code which deals with
>this situation

A hacker in Germany did it.

He hacked TOS to run with the PAK68 processor replacement board (020
plus 881). He removed alle Line-A calls (replaced them with Line-F) and
dealed with the stack frame.

This version runs with the 010, too. The 010 will give just about 2.5
per cent more performance... I think, it is not worth the effort (the
hacked TOS is incompatible with a lot of programs...).


Pathed versions of a piece of software, you already have a lincence to,
are LEAGAL in Germany. If you payed for a software licence, you are free
to use the software at will; you must not give away your patched
version, but are free to sell the patches.

hase
-- 
Hartmut Semken, Lupsteiner Weg 67, 1000 Berlin 37 hase@netmbx.UUCP
In a space in the forest, on an empty patch of wet ground between a
circle of craning trees, appeared quietly and without fuss a plain white
door.
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Message-ID: <1755@netmbx.UUCP>
Path: arc1-ca.pugleaf.net!utzoo!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!bloom-beacon!gatech!mcnc!ece-csc!ncrcae!ncrlnk!uunet!mcvax!unido!tub!tmpmbx!netmbx!hase
References: <881116021045.085584@DOCKMASTER.ARPA> <1236@atari.UUCP>

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From: hase@netmbx.UUCP (Hartmut Semken)
Newsgroups: comp.sys.atari.st
Subject: Re: illegal instructions
Message-ID: <1755@netmbx.UUCP>
Date: 26 Nov 88 09:36:03 GMT
References: <881116021045.085584@DOCKMASTER.ARPA> <1236@atari.UUCP>
Reply-To: hase@netmbx.UUCP (Hartmut Semken)
Organization: netmbx Public Access Unix, Berlin, West Germany
Lines: 33