> > I agree that falling off the end of main() is not a good idea, but the
> > code won't wander off into uninitialzed code space.  Code generated by
> > the Hi-Tech compilers jumps back to the beginning after the closing
> > brace of main().
>
> Are you absolutely certain of that? Does HiTech put a "goto" at the end
> brace? I would be very surprised and disturbed if they did.

After inspecting the assembler generated by HiTech, I can tell you that
HiTech defines "global start" at the head of the assembler file, and at
the end of the program instructions it does an "ljmp start".


>
> Remember, that if execution DOES go into "never never" land, and all of
> that place is uninitialized, the PIC will simply see 3ff as the op code.
> Since that is an invalid op code it will treat it as a NOP and increment
> the PC. Eventually the PC will wrap and hit address 0, which of course
> is the first instruction of your program, which will "rerun" your
> program, giving the ILLUSION that the program "restarted".

_______________________________________________________________________
  Adam Woodworth
  SMTP : adam@mirkwood.com
  HTTP : http://www.mirkwood.com
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