I've never seen this kind of movement in any of the 2d zelda-like games I've played. The Crescent Dodge.
Link moves in a forward 180 degree arc via r button in the space of a 3x3 tile grid in front of him, with solidity detection of course.
facing right
facing up
He can arc in either side of the circle, or both with extra controls, scripter's choice. Extra internets if you get him to move over a 3x4 tile grid. It's basically like an alternate roll script.
Extra clarification:
CODE
A-B-C
E-F-G
H-I-J
If he started at E facing east, he would go through A-B-C and end up at G facing east; OR
If he started at E facing east, and would go through H-I-J and end up at G facing east
Anyone up for this? No one at AGN seems to have tried yet.