This is part of a too-elaborate "super-assembler" I've developed, which I
hope to post on the Web soon.  I use a 16C76 or '77 because of the "bankless
ROM" feature, a good location for TempW.  This works on MPLAB 3.99.

;***************************************************************************
***

GoSub   MACRO   Subrtn

;Perform a "call subroutine" anywhere in memory.
;Note: W is preserved, so GoSub behaves just like a call.

;***************************************************************************
***

        movwf   TempW
        movlw   HIGH Subrtn
        movwf   PCLATH
        movfw   TempW

        call    Subrtn

        movwf   TempW
        movlw   HIGH $
        movwf   PCLATH
        movfw   TempW

        ENDM


> ----------
> From:         White Horse Design[SMTP:whd@ZETNET.CO.UK]
> Reply To:     pic microcontroller discussion list
> Sent:         Friday, December 04, 1998 5:58 AM
> To:   PICLIST@MITVMA.MIT.EDU
> Subject:      PIC page seleclt macros
>
> Has anyone written a simple macro to call subroutines across page
> boundaries?
>
> e.g.
>
> pcall func_in_page0
> pcall func_in_page1
>
> ???
>
> Regards
>
> Adrian
> ---
> WWW    WWW   Adrian Gothard
> WWW WW WWW   White Horse Design
> WWWWWWWWWW   +44-385-970009 (Mobile/SMS), +44-118-962-8913/4 (voice/fax)
> WWWW  WWWW   whd@zetnet.co.uk, http://www.users.zetnet.co.uk/whd
> ---
> Developers of GPS satellite-based tracking systems for
> vehicles/helicopters
>