
\subsection{Other}


masks in bitwise operations. take only desired part by doing and operation with mask

setting values. or operator with target values if want to set to 1.
what if want to set 0? invert map and use and. or just use xor


hexidecimal
4 bits

2**4 is 16

use 0 to 15, 0 to f

shift left is x2
shift right is /2




