Strange issue with TEXTOUT_P

[komame]

I just wanted to inform others about it, because other graphical commands like RECT_P or LINE_P work in this area (512+) and the TEXTOUT_P is the only exception.
I think it might be useful only for games with scrolling (for example), but rather not for professional use.
However, I still think that it should work since it is possible to create GROB wider than 512 pixels.