// connect 8 leds to port A; connect 8 push button switches to portB 
// press 1 4 7 switches one by one ---> glow 5th led.
// press 5 3 2 switches one by one ---> off 5th led. 

#include "ecen.h"

void setup(){
  init_portA();
  init_portB();
  Serial.begin(9600);
}

void loop(){
  volatile long j;
  if(inputB()==0x02){
    for(j=0;j<=50000;j++);
    Serial.println("hi");
    while(inputB()==0x00);
    if(inputB()==0x10){
      for(j=0;j<=50000;j++);
      Serial.println("hi hi");
      while(inputB()==0x00);
      if(inputB()==0x80){
        Serial.println("hi hi hi");
        outputA(0x20);
      }
    }
  }
  if(inputB()==0x20){
    for(j=0;j<50000;j++);
    Serial.println("hi");
    while(inputB()==0x00);
    if(inputB()==0x08){
      for(j=0;j<50000;j++);
      Serial.println("hi  hi");
      while(inputB()==0x00);
      if(inputB()==0x04){
        Serial.println("hi hi hi");
        outputA(0x00);
      }
    }
  }
  }