Atari 800 Basic Reference Manual

OPERATOR
PRECEDENCE
AND
OR
Logical AND
Logical OR
Examples:
10 IF A=12 AND T=0 THEN F'RWT "Q)00
11
Both expressions must
be true before GOOD is
printed.
10 A=(C>l) AND (N<1)
10 A = (C+l) OR Ol-1)
Hi A = NOT< C+ 1 )
If both expressions
true,
A= + 1; otherwise
A=O.
If either expression
true, A=
+ 1; otherwise
A=O.
If expression is false,
A= + 1; otherwise A= 0.
The rest of the binary operators are relational.
< The first expression is less than the second expression.
> The first expression is greater than the second.
- The expressions are equal to each other.
< = The first expression is less than or equal to the second.
> = The first expression is greater than or equal to the second.
< >The two expressions are not equal to each other.
These operators are most frequently used in IF/THEN statements and logical
arithmetic.
Operations within the innermost set of parentheses are performed first and pro-
ceed out to the next level. When sets of parentheses are enclosed in another set,
they are said to be "nested". Operations on the same nesting level are performed
in the following order:
Highest <, >,=,<=, >=,<->
precedence
* ' I
+, -
Lowest
precedence
NOT
AND
OR
Relational operators used in string expres-
sions. Have same precedence and are per-
formed from left to right.
Unary minus
Exponentiation.
Multiplication and division have the same
precedence level and are performed from left
to right.
Addition and subtraction have the same
precedence level and are performed from left
to right.
Relational operations in numeric expressions
have the same precedence level from left to
right.
Unary operator
Logical AND
Logical OR
General Information 7

Atari 800 Specifications

General

Brand	Atari
Model	800
Category	Desktop
Language	English