Hi John ... as long as you are mindful of the differences it works
fine.  Several time I've used a 16F84 to develop code for 12C508s
and 12C509s.  I use the extra code space for serial output for
debugging.

Good luck and have fun,
 - Nick -

John Mullan wrote:
>
> Fellow PICsters:
>
> I do not have a suitable emulator for the 12C508, but I have some and want
> to use them for a project.
>
> PROBLEM:  If I develop the code on a 16C84 (being mindful of the Ports and
> RAM location differences) should the program work if compiled for the
> 12C508???