Improved Logic Gates.

The Code to Emulate the AND logic gate in 8 pin DIP form [edit, fixed, only outputs High when BOTH are HIGH

/* Instructions
  1. Upload the ISP sketch to an Arduino board.
  2. Program the attiny accordingly.
  3. Upload this sketch via Aruduino as ISP
*/

//Arduino Emulating a Logic AND gate
//I Plan on doing a library of these, either to temp replace
//a faulty IC, or to improve on one..
//for example, No need to tie these pins down with pull up/down resistors
//add extra functionality of logic

void setup() 
{
  // put your setup code here, to run once:
  pinMode(4,INPUT);  // pin 3
  pinMode(3,INPUT);  //pin 2
  pinMode(0,OUTPUT); //pin 5  (this is your Logic HIGH/LOW)  
}

void loop() 
{  
  boolean Status1 = digitalRead(3);
  boolean Status2 = digitalRead(4);
    if ((Status1==HIGH) && (Status2==HIGH))
     { 
          digitalWrite(0,HIGH);  //Your Logic Result on Pin 5       
       //add a delay for example
       //delay(400);
     }
      else
        digitalWrite(0,LOW);
}