The binary relational operators are =, ==, !=, <>, <, <=, >, and >=.
Equal:
<operand> = <operand>
<operand> == <operand>
Not equal:
<operand> != <operand>
<operand> <> <operand>
Less than: <operand> < <operand>
Less than or equal:
<operand> <= <operand>
Greater than:
<operand> > <operand>
Greater than or equal:
<operand> >= <operand>
These operators compare two operands and return 1 if the condition is true or 0 if the condition is false.
The operands can be any expression evaluating to an absolute expression.
See the following listing for an example of the binary relational operators
3 >= 4 ; = 0 (FALSE) label = 4 ; = 1 (TRUE) if label is 4, 0 or (FALSE) otherwise. 9 < $B ; = 1 (TRUE)