Basically, a random grid based movement?
Sorry, haven't played Zelda in a while, not sure exactly what you're asking.
Grid based movement is not required, just simple 8 or 4 dir movement.
You can see these pics if you remember:
<img src="http://mnrukat.files.wordpress.com/2008/09/zeldaages_2.jpg" border="0" />
<img src="http://www.nintenderos.com/wp-content/uploads/2011/12/the-legend-of-zelda-nes.jpg" border="0" />