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From: dundas@granite.jpl.nasa.gov (John Dundas)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Whaddya do in ioCompletion routine?
Keywords: ioCompletion Asynchronous
Message-ID: <1991Mar7.204208.20535@jato.jpl.nasa.gov>
Date: 7 Mar 91 20:42:08 GMT
References: <63044@bbn.BBN.COM> <49791@apple.Apple.COM>
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Reply-To: dundas@granite.Jpl.Nasa.Gov (John Dundas)
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Organization: Jet Propulsion Laboratory, Pasadena, CA
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Read Inside Macintosh II, pp. 181-183 carefully.  To quote:  "When your
completion routine is called, register A0 points to the parameter block
of the asynchronous call and register D0 contains the result code."

John Dundas