#include "rims.h"

/*
Exercise 1 Instructions:

1. A lock has two switches. These are A0 and A1. Once the proper sequence is followed, the lock
will open. Write C code for the lock using while loops to wait.
Start at State 0, waiting for State 1 to become true, pseudocode is:
while (!(State 1)) then wait for the correct next state condition to occur
State A1 A0
0 0 0
1 0 1
2 1 1
3 1 0 – open the lock
      */
unsigned char state = 0; //we initiate a variable state to zero

//We will foollow through the sequence and B0 will work as our lock

void main()
{
   while (1) {
      if(state == 0 && (!A0 && !A1))
      {
          state++;
      }
      if(state == 1 && (A0 && !A1))
      {
          state++;
      }
         if(state == 2 && (A0 && A1))
      {
          state++;
      }
           if(state == 3 && (A0 && !A1))
      {
          //Open the lock
          B0 = 1;
      }
   }
}