MATLAB - Bitwise Operations

Quiz

MATLAB provides various functions for bit-wise operations like 'bitwise and', 'bitwise or' and 'bitwise not' operations, shift operation, etc.

The following table shows the commonly used bitwise operations −

Function	Purpose
bitand(a, b)	Bit-wise AND of integers a and b
bitcmp(a)	Bit-wise complement of a
bitget(a,pos)	Get bit at specified position pos, in the integer array a
bitor(a, b)	Bit-wise OR of integers a and b
bitset(a, pos)	Set bit at specific location pos of a
bitshift(a, k)	Returns a shifted to the left by k bits, equivalent to multiplying by 2^k. Negative values of k correspond to shifting bits right or dividing by 2^\|k\| and rounding to the nearest integer towards negative infinite. Any overflow bits are truncated.
bitxor(a, b)	Bit-wise XOR of integers a and b
swapbytes	Swap byte ordering

Example

Create a script file and type the following code −

a = 60;               % 60 = 0011 1100   
b = 13;               % 13 = 0000 1101 
c = bitand(a, b)      % 12 = 0000 1100  
c = bitor(a, b)       % 61 = 0011 1101 
c = bitxor(a, b)      % 49 = 0011 0001 
c = bitshift(a, 2)    % 240 = 1111 0000 */
c = bitshift(a,-2)    % 15 = 0000 1111 */

When you run the file, it displays the following result −

c =  12
c =  61
c =  49
c =  240
c =  15

matlab_operators.htm

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