title: How to ignore bits in a variable
body: <p>I would like to know how to delete bits in a bit value.</p>
  
  <p>I receive a 10 bits value (bit 0 to bit 9) and I have to send a variable which ignore bit 0, bit 2, bit 4 and bit 6 of the received value then my variable will be : bit 987531. How can I do ? I heard about mask bit I don't really know how to use it even if I know the mask would be <strong>0x55</strong></p>
  
  <p>Thank you for helping me </p>