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 2k. 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 |
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