#[derive(Debug, Clone, Copy)]
#[repr(u32)]
pub enum ExitCode {
    Success = 0x10,
    Failure = 0x11,
}

pub fn exit(code: ExitCode) -> ! {
    unsafe {
        x86_64::instructions::port::Port::<u32>::new(0x501).write(code as u32);
    }
    loop {
        x86_64::instructions::hlt();
    }
}