Bit-shifting a byte array by N bits

Question

Hello quick question regarding bit shifting

I have a value in HEX: new byte[] { 0x56, 0xAF }; which is 0101 0110 1010 1111

I want to

Answer 1

you want something like...

var HEX = new byte[] {0x56, 0xAF};
var bits = new BitArray(HEX);
int bitstoShiftRight = 4;
for (int i = 0; i < bits.Length; i++)
{
   bits[i] = i < (bits.Length - bitstoShiftRight) ? bits[i + bitstoShiftRight] : false;
}
bits.CopyTo(HEX, 0);