Rust byte splitting

bytesplit.rs

fn main() {
    let byte: u8 = 0b1001_0110;
    
    let mut high: u8 = 0b0000_0000;
    let mut low: u8 = 0b0000_0000;
    
      /*
      (1 << 0) -> 0000 0001
      (1 << 1) -> 0000 0010
      (1 << 2) -> 0000 0100
      (1 << 3) -> 0000 1000
      (1 << 4) -> 0001 0000
      (1 << 5) -> 0010 0000
      (1 << 6) -> 0100 0000
      (1 << 7) -> 1000 0000
      */
    
    //high
    if byte & (1 << 4) == 0b0001_0000 { high = high | 1 << 0; }
    if byte & (1 << 5) == 0b0010_0000 { high = high | 1 << 1; }
    if byte & (1 << 6) == 0b0100_0000 { high = high | 1 << 2; }
    if byte & (1 << 7) == 0b1000_0000 { high = high | 1 << 3; }
    
    //low
    if byte & (1 << 0) == 0b0000_0001 { low = low | 1 << 0; }
    if byte & (1 << 1) == 0b0000_0010 { low = low | 1 << 1; }
    if byte & (1 << 2) == 0b0000_0100 { low = low | 1 << 2; }
    if byte & (1 << 3) == 0b0000_1000 { low = low | 1 << 3; }
    
    println!("byte: {:08b}\nupper: {:04b}\nlower: {:04b}", byte, high, low);
}