Jasik ResError
Volume Number: 11
Issue Number: 2
Column Tag: The Inquisitive Programmer
A Quick Trip Into the Depths 
ResError Considered Harmful?
by Steve Jasik, Menlo Park, CA, macnosy@netcom.com
Note: Source code files accompanying article are located on MacTech CD-ROM orsource code disks.
Nosy is over 10 years old, having been introduced to the world in Nov ’84 and first
shipped in Jan ’85. It has been a few years since I have written an article for
MacTech. Since ’84, the Mac has become more powerful than the mainframes I used to
work on, and the system has advanced in utility and complexity. Nosy hasn’t changed
too much, and some pseudo alternatives to it, such as the ResEdit CODE Editor have
come along, but I used it recently to get the global view of a piece of the ROM.
The particular example I’ll show here came to me as a bug in my debugger that
showed up on a IIfx running System 7.5. After some investigation, it turned out that
the problem was some less-than-robust code in Sound Manager 3.0. The crux of the