We extracted and posted the 6502 code because it was a piece of computer history that could be of interest to others, and because if we hadn't, it might have been lost for all time. We did this for fun, not profit. As the author and copyright holder of this source code, I personally have no problem with anyone studying it, modifying it, attempting to run it, etc. Please understand that this does NOT constitute a grant of rights of any kind in Prince of Persia, which is an ongoing Ubisoft game franchise. Ubisoft alone has the right to make and distribute Prince of Persia games.