Thanks Dave.

The PBP3 manual itself left me confused as per the examples below;

More Examples:
IF B0 <> 10 THEN
B0 = B0 + 1
B1 = B1 - 1
ENDIF
IF B0 = 20 THEN
led = 1
ELSE
led = 0
ENDIF
IF B0 >= 40 THEN old
IF PORTB.0 THEN itson
IF (B0 = 10) AND (B1 = 20) THEN mainloop
IF B0 <> 10 THEN B0 = B0 + 1: B1 = B1 - 1