Effect

Performs a bitwise AND-operation (logical conjunction) between two expressions.

The bit is set if both bits are set. For each bit, the results are:

0 AND 0 = 0
0 AND 1 = 0
1 AND 0 = 0
1 AND 1 = 1

The AND-operation is often used to "mask" one or more bits.

Syntax

<Value> AND <Value>

Parameter

<Value> is a value between -32768 and 32767. It can also be a numeric variable, an mathematical expression or expression from a condition.

Notes:
- If you use binary expressions, it is best to put the first expression in parenthesis to avoid the bug in interpreter that causes a syntax error. This problem does not happen with decimal, hexadecimal or octal expressions.
- When the expression is performed in a condition (IF...THEN...ELSE or IF...GOTO...ELSE), if the result of the whole expression is zero the value is taken as false, otherwise it's taken as true.

Examples

PRINT 15 AND 11

11

Binary explanation:

1111 
1011  AND
----
1011

PRINT 6 AND 13

4

Binary explanation:

0110
1101 AND
----
0100

PRINT &B00001111 AND &B11110001

15
Syntax error

PRINT (&B00001111) AND &B11110001

1

Related to

EQV, IMP, MOD, NOT, OR, XOR

Compatibility

MSX-BASIC 1.0 or higher