RETLW Instruction

The RETLW instruction can be used to provide access to tables of constants. The recommended way to create such a table is shown in the following example.

Accessing Table of Constants Using the RETLW Instruction

constants
BRW                     ;Add Index in W to
;program counter to
;select data
RETLW DATA0             ;Index0 data
RETLW DATA1             ;Index1 data
RETLW DATA2
RETLW DATA3
my_function
;LOTS OF CODE....
MOVLW		DATA_INDEX
call constants
;THE CONSTANT IS IN W

The BRW instruction eases the implementation of this type of table.