Al says he got the note from the PICLIST.
I don't recall it...

Robert Rolf wrote:

> redtock8@dxtron wrote:
>
>> My table starts at h1000 and crosses a couple
>> of pages. It is a table of words to send to
>
>
> Couple? There's the problem. You only pass in an
> 8 bit 'offset' so you can't possibly compute a
> valid start address for any 'msg' past the first 255 bytes.
>
> You need to compute a two byte offset, and add BOTH
> bytes to PC to fetch the desired message bytes.
>
> Robert
>
>> a display. My problem is when the text crosses
>> a page. I could use an example if any one has one.
>
>
>> Thanks
>> Al
>
> redtock8@dxtron wrote:
>
>> I'm trying to display text entries from a large
>> table and am having a problem. My table crosses pages
>> so I am trying some code from PICLIST.COM.
>> works but always goes 8 address beyond
>> where the char is.
>> Thanks for any help
>> Al
>>
>> DISPLAY_TABLE
>>    movwf               offset                               ;save the 
>> table index
>>    call                    msg                                  ;go 
>> get char
>>    movwf               txsend                              ;move it 
>> to tx char buffer
>>    andlw                0xFF                               ;
>>    btfsc                 status,0x2                         ;is it 
>> zero ?
>>    goto                 done                                 ;yes-return
>>    call                   tx2display                         ;no-send 
>> to display
>>    movf                offset,w                             ;
>>    addlw              0x1                                   ;inc offset
>>    goto                DISPLAY_TABLE           ;GET NEXT CHAR 0xF4
>> DONE:
>>    return                                                       
>> ;return to calling routine
>> (got this code below from PICLIST.COM)
>> MSG
>>    movlw              high(table_start)
>>    movwf              pclath
>>    movf                offset,w
>>    addlw               table_start
>>    btfsc                ststus,c                    ;
>>    incf                  pclath
>>    movwf             pcl
>>
>> TABLE_START
>>                           retlw...............
>>                        last entry is retlw   0
>


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