Path: utzoo!mnetor!uunet!husc6!bloom-beacon!mit-eddie!ll-xn!ames!ncar!noao!mcdsun!nud!df
From: df@nud.UUCP (Dale Farnsworth)
Newsgroups: comp.sys.atari.st
Subject: Re: PC-Ditto speed "XDOS"
Message-ID: <780@nud.UUCP>
Date: 5 May 88 18:19:55 GMT
References: <2882@crash.cts.com> <1805@brahma.cs.hw.ac.uk>
Reply-To: df@nud.UUCP (Dale Farnsworth)
Organization: Motorola Microcomputer Division, Tempe, Az.
Lines: 19

Neil Forsyth (neil@cs.hw.ac.uk) writes:
=In article <2882@crash.cts.com> fred@pnet01.cts.com (Fred Brooks) writes:
=>What we really need is a product like 'XDOS'. XDOS takes a MS-DOS program
=>and converts it to 680X0 machine code. When this is done the program often
=>runs faster then the INTEL machine it was written for. This product is already
= 
= Interesting but I wonder what XDOS does about vector tables in the data
= segment since Intel and Motorola store longwords differently ie. reversed.
= And then there is always the clowns who pervert the idea by putting data in
= the code segment.

Yes, it has to maintain some data in the original Intel byte order.  There
is a performance hit, but it shouldn't be that difficult a programming task.

As to data in the code segment, this must be detected and accounted for.
It works.

-- 
Dale Farnsworth		602-438-3092	uunet!unisoft!nud!df