Arduino N-Tier Demultiplexing

gistfile1.ino

int controlPin1 = 2;
int controlPin2 = 3;
int controlPin3 = 4;
int controlPin4 = 5;
int controlPin5 = 6;
int controlPin6 = 7;

int signalPin = 9;

int multiplexers[2][3] = {
   {0, 0, 0},
   {0, 0, 1}
};

int outputs[8][3] = {
   {0, 0, 0},
   {0, 0, 1},
   {0, 1, 0},
   {0, 1, 1},
   {1, 0, 0},
   {1, 0, 1},
   {1, 1, 0},
   {1, 1, 1}
};

void setup()
{
  pinMode(controlPin1, OUTPUT);
  pinMode(controlPin2, OUTPUT);
  pinMode(controlPin3, OUTPUT);
  pinMode(controlPin4, OUTPUT);
  pinMode(controlPin5, OUTPUT);
  pinMode(controlPin6, OUTPUT);
  pinMode(signalPin, OUTPUT);
}

void loop()
{
  for (int i = 0; i < 2; i++)
  {
    digitalWrite(controlPin1, multiplexers[i][0]);
    digitalWrite(controlPin2, multiplexers[i][1]);
    digitalWrite(controlPin3, multiplexers[i][2]);
    
    for (int j = 0; j < 8; j++)
    {
      digitalWrite(controlPin4, outputs[j][0]);
      digitalWrite(controlPin5, outputs[j][1]);
      digitalWrite(controlPin6, outputs[j][2]);
      
      for (int k = 0 ; k <= 255; k += 16) 
      { 
        analogWrite(signalPin, k);
        delay(30);
      } 
      
      for (int k = 255 ; k >= 0; k -= 16) 
      {
        analogWrite(signalPin, k);
        delay(30);                            
      } 
    }
  }
}

Errata: apparently I should have used byte as the type for the arrays, and there are better alternatives to the delay function.