I've looked in the device-specific data sheet, I've looked in the Mega-0 data sheet. I've looked in the Microchip AVR LibC documentation. Zilch! Found a vector table but nothing that looks like proper names!
Where does one find the proper names for gcc? I really hope they are not buried in the avr/io file morass! I have no clue about navigating that. Already spent more time than any mortal ought to need to spend!