seed

pub fn seed(self: *RomuTrio, init_s: u64) void {
    // RomuTrio requires 192-bits of seed.
    var gen = std.Random.SplitMix64.init(init_s);

    self.x_state = gen.next();
    self.y_state = gen.next();
    self.z_state = gen.next();
}