Detailed reference for the INCF instruction in PIC18 ISA.
Increment the contents of file register f.
d = 0 → result is stored in WREG.d = 1 → result is stored back into register f.a = 0 → Access‑bank addressing.a = 1 → Banked addressing.; d=0, a=0 → result in WREG, Access bank
INCF 0x20, 0, 0 ; W = 0x20 + 1; d=0, a=0 → result in WREG, Access bank
INCF 0x20, 0, 0 ; W = 0x20 + 1; d=0, a=1 → result in WREG, Banked address
INCF 0x20, 0, 1 ; W = 0x20 + 1; d=0, a=1 → result in WREG, Banked address
INCF 0x20, 0, 1 ; W = 0x20 + 1; d=1, a=0 → result stored back into f, Access bank
INCF 0x20, 1, 0 ; 0x20 = 0x20 + 1; d=1, a=0 → result stored back into f, Access bank
INCF 0x20, 1, 0 ; 0x20 = 0x20 + 1; d=1, a=1 → result stored back into f, Banked address
INCF 0x20, 1, 1 ; 0x20 = 0x20 + 1; d=1, a=1 → result stored back into f, Banked address
INCF 0x20, 1, 1 ; 0x20 = 0x20 + 1; Load literal into WREG then increment, result in WREG (Access bank)
MOVLW 0x10
INCF 0x20, 0, 0 ; W = 0x20 + 1; Load literal into WREG then increment, result in WREG (Access bank)
MOVLW 0x10
INCF 0x20, 0, 0 ; W = 0x20 + 1