> Suppose I have an interrupt- how can I tell from inside the interrupt
> handler code what the PC was immediately before the interrupt
> occurred?

An argument to the interrupt handler is a frame pointer.  The PC is
stored in there.

> (I want to set a VIA timer to see where the PC is inside the ROM
> routines at specific times.  Will this work?)

Might--I dunno...  Keep in mind that actually printing stuff out will
affect your timing...  ;-)

-allen

-- 
Allen Briggs - end killing - allen.briggs@bev.net ** MacBSD == NetBSD/mac68k **