export fn set_controller_down(button: u8, state: *uxn) void = {
	const cur = state.dev[0x82];
	const new = cur | button;
	state.dev[0x82] = new;	
};
export fn set_controller_up(button: u8, state: *uxn) void = {
	const cur = state.dev[0x82];
	const invbutton = 0xff ^ button;
	const new = cur & invbutton;
	state.dev[0x82] = new;	
};

export fn set_key_down(key: u8, state: *uxn) void = {
	state.dev[0x83] = key;	
};
export fn clear_key_down(state: *uxn) void = {
	state.dev[0x83] = 0;	
};