Actually I don't know if problem is Allegro or Allegro.pas. As I've said I didn't look to deep. I don't know why I can't compile Allegro by myself so I haven't a debuggable version to test properly.
Anyway, what are the most common problems related with 32bit->64bit porting? Is there a gide somewhere? I've found some docs at the Free Pascal's wiki but nothing specific.
Had you? So I should work on it.
Anyway I should ask to the Allegro's development team about what does changes between 32bit and 64bit...
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