title: Labyrinth using ARM
body: <p>I have to do this exercise using a recursion subroutine:</p>
  <p>Do a program that allows you to find the exit of a labyrinth represented in memory like a 15x15 matrix where:
  -Value 2, is the objetive
  -Value 1, is a wall
  -Value 0, is a free space</p>
  <p>The program receives an starter point (xi,yi) and bring back the point where the solution is (2).</p>
  <p>I don't know how to do it, let's see if someone could help me.</p>
  <p>Thanks</p>
  <p>I have design the main program but I don't know how to do the subroutine to do what the exercise want.</p>