Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!purdue!bu-cs!mirror!francis
From: francis@mirror.UUCP (Joe Francis)
Newsgroups: comp.sys.mac.programmer
Subject: Re: How to Argue Technical Points (was Re: Tail patches)
Message-ID: <33514@mirror.UUCP>
Date: 1 Dec 89 19:58:14 GMT
References: <2744@dogie.macc.wisc.edu> <5532@internal.Apple.COM>
Reply-To: francis@prism.TMC.COM (Joe Francis)
Organization: Mirror Systems, Cambridge Mass.
Lines: 36

In article <5532@internal.Apple.COM> chewy@apple.com (Paul Snively) writes:
>In article <2744@dogie.macc.wisc.edu> yahnke@vms.macc.wisc.edu (Ross 
>Yahnke, MACC) writes:
>> Apple documents all traps that may move memory, as an aid to promote
>> safe programming practices. Would it make any sense or be any help 
>> if Apple were to do a similar list? How about a tech note that
>> documents which traps are patched, and maybe for what reason, so
>> as to guide those who will inevitably go and patch things in spite
>> of Apple's admonitions?
>
>It's a really great idea, but it's really not feasible because different 
>Systems patch different ROMs on different CPUs differently.  That list 
>would have to be revved at every System release for every CPU and every 
>version of the System file. 

Hmmm. There are other pieces of mac documentation that are constantly
being revved.  How 'bout this:  Have a list of traps which have, in at
least one System/CPU/Quickdraw/MultiFinder/fillintheblank combination, 
been patched?  Just a list with no details about the patch(es) or what
combination(s) have a patch(es), would be neato.

I know another thing that would be neato - so neato, in fact that maybe
already been done.  Does anyone know where I can find a list of what
Toolbox routines may place gobs of stuff on the stack?  I had a problem
with ScrollRect once, and while it was probably some mistake of my own,
I kept wondering if it was trying to put this rather large 8-bit pixel
depth rectangle I was orking with onto the stack.  I never solved the
problem (just abandoned ScrollRect instead) and I still don't know if
this might be the case.

Any pointers about where I could get such a list would be very welcome.

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