AND              Bitwise Logical AND                            MASM Operator

expression1 AND expression2

Performs a bitwise logical AND between expression1 and expression2.
The following table shows the results from ANDing two bits:

Bit      Bit      Result
0        0         0
0        1         0
1        0         0
1        1         1

See also: NOT
See also: OR
See also: XOR

AND Bitwise Logical AND