IF-THEN

IF Condition [THEN | GOTO] [Label | EXIT]

Function
Evaluate Condition and, if it is true, jump to the point in the program designated by Label.

Condition is a simple statement, such as "x = 7" that can be evaluated as True or False.
Label specifies where to go in the event that Condition statement evaluates as True.

Explanation
IF...THEN is decision maker that affects program flow. It tests a Condition statement and, if that statement is True, goes to a point in the program specified by Label. The available comparison operators are:

Comparison Operator	Definition
=	Equal
<>	Not Equal
>	Greater Than
<	Less Than
>=	Greater Than or Equal To
<=	Less Than or Equal To

Comparisons are always written in the form: Variable Op Value.

Variable is a bit, byte or word variable.
Op is the comparison operator.
Value is a variable or constant for comparison.

Main:
  IF StartBtn = 1 THEN Main                     ' wait for input to go low

Check_Mode:
  IF ModePin = 0 GOTO Show_AMPM                 ' use HH:MM xM format if mode = 0

Some programmers may prefer a more verbose style; the following syntax is also supported:

Check_Mode:
  IF ModePin = 0 THEN GOTO Show_AMPM            ' use HH:MM xM format if mode = 0

Related instructions: IF ... THEN ... ELSE, BRANCH, GOTO, and EXIT