Bitwise Operations

In C it is possible to perform logical operations on values and manipulate each bits of it. In the following, some of the operations will be show.

NOTE: For more information and examples on the practical use of bitwise operations, you should go through the ASM Tutorial as well.

Inverting

The unary inverting operator ~ inverts each bit in a value. Use: res = ~ value.

AND

The binary and operator & and's each bit of two values with each other. Use: res = value1 & value 2.

OR

The binary or operator | or's each bit of two values with each other. Use: res = value1 | value 2.

XOR

The binary xor operator ^ xor's each bit of two values with each other. Use: res = value1 ^ value 2.

Rightshift

The binary rightshift >> operator shifts a value n bits to right. Use: res = val >> n.

Leftshift

The binary leftshift << operator shifts a value n bits to the left. Use: res = value1 << n.

Blog Comments powered by Disqus.