C# Language: Changing the First Four Bits in a Byte

Question

In order to utilize a byte to its fullest potential, I\'m attempting to store two unique values into a byte: one in the first four bits and another in the second four bits. How

Answer 1

You first mask out you the high four bytes using value & 0xF. Then you shift the new bits to the high four bits using newFirstFour << 4 and finally you combine them together using binary or.

public void changeHighFourBits(byte newHighFour)
{
    value=(byte)( (value & 0x0F) | (newFirstFour << 4));
}

public void changeLowFourBits(byte newLowFour)
{
    value=(byte)( (value & 0xF0) | newLowFour);
}