Porting a .exe to other platform (PSP, iPhone

Porting a .exe to other platform (PSP, iPhone/Touch, x360, Wii, anything)?
Is it possible to port a homemade .exe game to another platform? The game is created with RPG Maker 2003. The only user input buttons in the game are the arrow keys, enter, escape, and shift (and some other buttons routed to the ones mentioned before; X is escape, for example.) Could I port this say to PSP and map the controls to the PSP's control system? (Arrow keys, buttons, etc.)
Are there any default programs that do this or do I need to compile it in C++ or something?










---------------------------


xk3y x360 key usb usb x360key