const int clockPin = 8;  
int s0 = 11;
int s1 = 12;
int s2 = 13;

int si = 28;
int sii = 29;
void setup() {
  pinMode(clockPin, OUTPUT);
  pinMode(s0, OUTPUT);
  pinMode(s1, OUTPUT);
  pinMode(s2, OUTPUT);
}
//for input: 000 - PC, 010- IR, 011-Adder/Sub
//for output: 00-MAR, 01-Acc  , 10-IR, 11-B register
void loop() {
  digitalWrite(clockPin, HIGH);
  digitalWrite(s0, LOW);
  digitalWrite(s1,LOW);
  digitalWrite(s2, LOW);

  digitalWrite(si, LOW);
  digitalWrite(sii, LOW);

  delayMicroseconds(1000);  // Adjust the delay to control the clock frequency
  digitalWrite(clockPin, LOW);
  delayMicroseconds(1000);  // Adjust the delay to control the clock frequency
}