Article View: comp.sys.mac
Article #221Re: [Stolen] Macintosh ROM Sources
From: Russ Nelson
Date: Thu, 15 Jun 1989 19:11
Date: Thu, 15 Jun 1989 19:11
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In article <3819@tank.uchicago.edu> ra_robert@gsbacd.uchicago.edu writes:
In article <14758.2494DD71@cmhgate.FIDONET.ORG>, Chris.Parson@f54.n382.z1.FIDONET.ORG (Chris Parson) writes...
> I don't understand the furor! MacNosy ( by Jasik Designs ) has
>been able to disassemble the Mac ROMs for years! So the code has
>been availible for years. Big deal.
It's a big deal because disassembly <> source code. Source code is
_much_ more informative. It's like having a copy of a book in
English and in a foreign language (which you don't speak). The
same information is there, but it's much easier to understand in
one version than the other.
I've disassembled quite a lot of software, on the order of 100K of
executable code. I estimate that the amount of work needed to produce
a compilable source of an executable is approximately equal to the
amount of work required to write it in the first place. If I were
producing a Macintosh clone, I would have two sets of people working
on it, one disassembling the existing code, and another rewriting it
from scratch. The two teams would communicate only by a third party,
and a lab notebook would be kept of all communications. Further, I
wouldn't bother to try to save space as the original Mac team did.
Better to reduce your profit with an extra ROM and get the clone out
the door.
--
--russ (nelson@clutx [.bitnet | .clarkson.edu])
A person who seeks peace using weapons will never find it. [Thanks, Clayton.]
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<NELSON.89Jun15151146@sun.soe.clarkson.edu>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!sun-barr!cs.utexas.edu!csd4.milw.wisc.edu!leah!rpi!sun.soe.clarkson.edu!nelsonReferences:
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!sun-barr!cs.utexas.edu!csd4.milw.wisc.edu!leah!rpi!sun.soe.clarkson.edu!nelson From: nelson@sun.soe.clarkson.edu (Russ Nelson) Newsgroups: comp.sys.mac Subject: Re: [Stolen] Macintosh ROM Sources Message-ID: <NELSON.89Jun15151146@sun.soe.clarkson.edu> Date: 15 Jun 89 19:11:46 GMT References: <3819@tank.uchicago.edu> Sender: news@sun.soe.clarkson.edu Reply-To: nelson@clutx.clarkson.edu Distribution: usa Organization: Clarkson University, Postdam NY Lines: 28 In-reply-to: ra_robert@gsbacd.uchicago.edu's message of 13 Jun 89 20:14:20 GMT