> ;how can I add number of ff rollovers as stored in overflow to the table?
>
> table1                      ;750-1000 lines
>        addwf   pcl,f
>        retlw     .
>        retlw     .
> ;etc

I've just tried a quick test with this and it seems to work. I wasn't sure
if it would, not having used big tables on the F628 before. Try it and
monitor program flow with Watch

          movlw   0x04              ;base address high byte
          addwf   overflow,w     ;add number of blocks offset
          movwf   pclath
          movf    time,w             ;offset within block
          call     table

........rest of code

 org 400h                     ;Table start address

table   addwf  pcl    ; w = value in "time"
                                 ;also writes PCLATH into PCH
                                 ;causing a jump ahead of 256 bytes

         retlw  data000
         retlw  data002
         ........
         ........
         retlw  data999

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