> INCF FSR,F

POSTINC0

You'd load FSR0 with LFSR FSR0,location

When you access, via INDF0, the location that FSR0 is pointing to,
FSR0 will increment to location + 1

eg MOVF POSTINC0,W

= 16F, 8-bit  MOVF INDF,W    INCF FSR

18F have 16-bit FSRs

and eg a routine to clear 3 banks of RAM, limited by FSR0H = 1
or, IOW, location = 256

clr_ram  lfsr    fsr0,0x000 ;load FSRs
         lfsr    fsr1,0x100
         lfsr    fsr2,0x200
 
clear    clrf    postinc0   ;clear pointed-at locations
         clrf    postinc1
         clrf    postinc2
         btfss   fsr0h,0    ;loop until FSR0L rolls over and increments H
         bra     clear

wbr
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