I'm using a Squeak 3.8g 6527 image on Mac OS X.  I've built my VM from 
Ian Pumarta's latest stable Unix VM sources.

With those same sources, i've loaded the latest VM into my image and 
regenerated the VM sources.  WIth the exception of a small number of 
other fixes that I understand, I can't figure out is supposed to happen 
when methods in the VM invoke dispatchFunctionPointer (and in some 
cases, dispatchFunctionPointerOnIn).  The way I read this, the 
generated VM should just make a function call to a function passed as 
an argument (or looked up in a table using in an index).

I found a reference in June '04 to John Mc putting 
"dispatchFunctionPointer" support into his VM, based on Tim's changes.  
Anybody have any idea what dispatchFunctionPointer and 
dispatchFunctionPointerOnIn should do?  My VM doesn't link because 
these functions are missing.

Thanks in advance!