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Article #1795Re: Kodak statement about Photo CD System
From: Tim Smith
Date: Sun, 25 Oct 1992 10:01
Date: Sun, 25 Oct 1992 10:01
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sasrer@unx.sas.com (Rodney Radford) writes: >Nice idea, but you overlook items like different object file formats >and parameter passing conventions, making this nearly impossible in actual >practice. I didn't overlook different object file formats: note that I mentioned incorporating a hex dump of the object file into a Unix driver. That was to work around a different object file format. Basically, if you can get the thing you want to use on multiple operating systems down to a small number of functions that are mostly functions that take data and transform it in isolation, you can do what I suggested. If you pick a simple object file format, it is not that bad. You end up having to write something that understands how to find the entry point in that object file, and that understands the relocation table, but that's not to hard. Different parameter passing conventions aren't much of a problem. A little bit of assembly glue deals with that. At least, that is what I've found in practice. --Tim Smith
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f4ab8,8e0251a9a53aaef5 X-Google-Attributes: gidf4ab8,public X-Google-Thread: 11086b,5229c71b5803d592 X-Google-Attributes: gid11086b,public X-Google-Thread: 10b535,6f6989b360e1f876 X-Google-Attributes: gid10b535,public X-Google-Thread: 1025b4,6f6989b360e1f876 X-Google-Attributes: gid1025b4,public X-Google-Thread: feb82,8e0251a9a53aaef5 X-Google-Attributes: gidfeb82,public X-Google-ArrivalTime: 1992-10-24 21:22:04 PST Path: arc1-ca.pugleaf.net!sparky!uunet!dtix!darwin.sura.net!zaphod.mps.ohio-state.edu!uakari.primate.wisc.edu!usenet.coe.montana.edu!news.u.washington.edu!stein.u.washington.edu!tzs From: tzs@stein.u.washington.edu (Tim Smith) Newsgroups: alt.sources.d,alt.graphics.pixutils,comp.sys.mac.apps,misc.int-property,gnu.misc.discuss Subject: Re: Kodak statement about Photo CD System Message-ID: <1992Oct25.100159.8138@u.washington.edu> Date: 25 Oct 92 10:01:59 GMT References: <1992Oct23.225752.19365@netcom.com> <1992Oct24.085617.10668@u.washington.edu> <sasrer.719984822@cinnamon> Sender: news@u.washington.edu (USENET News System) Organization: University of Washington, Seattle Lines: 22