#[derive(Debug, Default)]
pub struct Sound {
    enabled: u8,
    sound_length_1: u8,
    sound_control_1: u8,
    sound_channel_volume_control: u8,
    sound_output_terminal_selector: u8,
    sound_freq_low: u8,
    sound_freq_high: u8,
}

impl Sound {
    pub fn new() -> Sound {
        Sound::default()
    }

    pub fn write_byte(&mut self, addr: u16, val: u8) {
        match addr {
            0xFF11 => self.sound_length_1 = val,
            0xFF12 => self.sound_control_1 = val,
            0xFF13 => self.sound_freq_low = val,
            0xFF14 => self.sound_freq_high = val,
            0xFF24 => self.sound_channel_volume_control = val,
            0xFF25 => self.sound_output_terminal_selector = val,
            0xFF26 => self.enabled = val,
            _ => panic!("Sound: Write {:02X} to {:04X} unsupported", val, addr),
        }
    }

    pub fn read_byte(&self, addr: u16) -> u8 {
        match addr {
            0xFF11 => self.sound_length_1,
            0xFF12 => self.sound_control_1,
            0xFF13 => self.sound_freq_low,
            0xFF14 => self.sound_freq_high,
            0xFF24 => self.sound_channel_volume_control,
            0xFF25 => self.sound_output_terminal_selector,
            0xFF26 => self.enabled,
            _ => panic!("Sound: Read from {:04X} unsupported", addr),
        }
    }
}