Darrel,
In my PBP code the only assembly routine would be your code for the interrupt and I have no branch routines. My interrupt routine is in PBP, not assembly, but if is was, could this then be a possible issue. Also in searching this thread, I did see the possibly of inserting "@ errorlevel -306 " to suppress the warning, if this is a OK, where does it makes sense to insert it, such as right after the includes.
Thanks for your help,
Terry