SECTION VI-14: Instruction Size of the PIC18 ADDLW Instruction Formation

The ADDLW is a 2 byte (16 bit) instruction. Of the 16 bits, the first 8 bits are set aside for the opcode and the other 8 bits are used for the literal value of 00 to FFH. This is shown below.

ADDLW Instruction Formation PIC18 microcontroller