Finally! I've used binary literals in real code. This feature, and the digits separator have been good additions to the C# language.
public static byte[] BreakIntoTwos(byte value) { var result = new byte[4]; result[0] = (byte)((value & 0b1100_0000) >> 6); result[1] = (byte)((value & 0b0011_0000) >> 4); result[2] = (byte)((value & 0b0000_1100) >> 2); result[3] = (byte) (value & 0b0000_0011); return result; }