Wayne Bennett wrote:
>
> This is the code that I'm trying to use, its taken straight form the
> microchip app. note with little understanding on my part as to what the
> table end really is for.
>
> ;----------------------------------------------------------------------------
> MESSAGE1
>         MOVLW   0               ;TABLE ADDRESS OF START OF MESSAGE
> dispmsg1
>         MOVWF   MSG_TEMP        ; MSG_TEMP HOLDS START OF MESSAGE ADDRESS
>         CALL    TABLE1
>         ANDLW   0XFF            ; CHECK IF AT END OF MESSAGE
>         BTFSC   STATUS,Z        ; (ZERO RETURNED AT END)
>         GOTO    out1
>         CALL    SEND_CHAR       ; DISPLAY THE CHARACTER
>         MOVF    MSG_TEMP,W      ; POINT TO NEXT CHARACTER
>         ADDLW   1
>         GOTO    dispmsg1
> out1
>         RETURN
>
> TABLE1
>         ADDWF   PCL


I see this code have another error too ! What value you load to PCLATH -
I don't
know . When ADDWF PCL executed PC(HIGH) load from PCLATH (see manual)
and probably
you jump to wrong page without previously correct PCLATH loading .


>         RETLW   '*'
>         RETLW   '*'
>           .
>           .
>           .
> TABLE_END
>         RETLW   0
>
> ;----------------------------------------------------------------------------
> MESSAGE2
>         MOVLW   0               ;TABLE ADDRESS OF START OF MESSAGE
> dispmsg2
>         MOVWF   MSG_TEMP        ; MSG_TEMP HOLDS START OF MESSAGE ADDRESS
>         CALL    TABLE2
>         ANDLW   0XFF            ; CHECK IF AT END OF MESSAGE
>         BTFSC   STATUS,Z        ; (ZERO RETURNED AT END)
>         GOTO    out2
>         CALL    SEND_CHAR       ; DISPLAY THE CHARACTER
>         MOVF    MSG_TEMP,W      ; POINT TO NEXT CHARACTER
>         ADDLW   1
>         GOTO    dispmsg2
> out2
>         RETURN
>
> TABLE2
>         ADDWF   PCL


The same error situation as described above .


>         RETLW   '*'
>         RETLW   '*'
>           .
>           .
>           .
>
> TABLE_END
>         RETLW   0
> ;----------------------------------------------------------------------------
> ;----------------------------------------------------------------------------
>
> The error is stated as:
>
>      "ADDRESS LABEL DUPLICATED OR DIFFERENT IN SECOND PASS (TABLE_END)"
>
> Hope this makes it easier to identify the problem.
>
> Thanks
>          _/       _/      _/_/_/_/
>         _/       _/      _/     _/
>        _/       _/      _/     _/
>       _/  _/   _/      _/_/_/_/
>      _/ _/ _/ _/      _/      _/
>     _/_/   _/_/      _/      _/
>    _/       _/  _/  _/_/_/_/
>
> Wayne Bennett
> Griffith University
> Brisbane Australia
> w.bennett@sct.gu.edu.au


This message mean that label was dublicated. Change first label to
TABLE1_END
and second label to TABLE2_END .

WBR Dmitry.