Tim Crist <PICLIST@MITVMA.MIT.EDU> wrote:

> I have a question about subroutines that are located above and
> below 255H in the 16F84 and the 16C54A.

    Tim:

    I think you mean "0FFH", or "255 decimal".

> My question is:  Can I have a subroutine below 255H successfully
> call a subroutine above 255H without incident?

    On the 16F84, it'll work just fine; subroutines can be anywhere
    in the memory space and can be called from anywhere else without
    any special effort.

    On the 16C54, it's a different story... All subroutine
    entry-points must be located in the first half of memory,
    between 000H and 0FFH.

    -Andy

=== Andrew Warren - fastfwd@ix.netcom.com
=== Fast Forward Engineering - Vista, California
=== http://www.geocities.com/SiliconValley/2499