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From: robert@polari.UUCP (robert)
Newsgroups: comp.sys.mac.programmer
Subject: Re: trap patches
Summary: StdFile, Pack3
Message-ID: <2818@polari.UUCP>
Date: 30 Nov 90 20:30:54 GMT
References: <1990Nov26.040223.8193@ucselx.sdsu.edu> <46831@apple.Apple.COM>
Organization: Seattle Online Public Unix (206) 328-4944
Lines: 24


In article <46831@apple.Apple.COM>, stevec@Apple.COM (Steve Christensen) writes:
> s-zeerox@steer.calstate.edu (Stan Malyshev) writes:
> >Does anyone have any SIMPLE code to illustrate a trap patch via and INIT?
> >My creation bombs (ID = 02) at startup, and I can't figure out what's
> >wrong.  Arrghhhh!
>
> Here's a quickie in assembly:

    This example looks very useful, but my BIG problem right now is
 that what I need to do requires patching routines in the Standard File
 package. Pack3 is a complex trap. Apparently, calls to Pack3 involve
 passing a routine "selector" of some kind. I haven't found any 
 documentation on this. Does anyone have any information? Any examples
 or pointers to examples? A sharp razor?

                                            Robert Riebman

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