Re: Walking Icons?

[Jim Murphy <murph@apple.com>]

In article <1993Aug14.120545.9274@msuvx2.memst.edu>, 
ustai@msuvx2.memst.edu writes:
>screen) WARNING:  Infinite Loop While Walking Icon List or a very similar
>message.  Any ideas what's a walking icon??  I was trying to change the

     This means Finder decided that the icon object list that it was
walking (probably to update a window with the latest file information) was
damaged. You're the second person who's reported seeing this, and they
have both involved file manipulations with 3rd-party utilities. Most
interesting. I'll have to think about this one. This shouldn't happen,
but obviously something is causing it in extremely rare circumstances.

>	Anyone know what's happening?  How do you test for infinite loops
>anyways??

     The icon object walking code simply checks if the link to the next
icon references the same icon. This happens if the end link somehow gets
pointing to a non-existant bank, like $AB. If you fetch any data from
that bank, or any bank from $80-$DF, which the GS doesn't decode, you'll
get a read of the last value on the data bus, which was the bank address
byte (due to the multiplexed nature of the GS address/data bus). 

    One question. Was the folder that contained the file you were making
filetype changes to open in a window?


Jim Murphy                                                 murph@apple.com

"...never quite said what I wanted to say to you,                 The Cure
  never quite managed the words to explain to you..."             Untitled