AZO

I seem same speed Horizontal and Vertical, using joypad to move mouse. not double speed.

I want know when it's operation need. Are you not enough, using Keyboard's arrow keys and Joypad's mouse?

On Retroarch, operation with Joypad must controll guest Keyboard/Mouse/Joypad. I think toggling 3 mode with R2 button press. How about you?

And I think "now mode" indicate on screen necessary. Then, it is difficult. And it'll affects other games.

Sorry, now I don't have good idea. If I find good method, report to you. Thanks.

いつもありがとうございます。 ご返事が遅れまして大変申し訳ございません。 > #define _POSIX_C_SOURCE 199309L ビルドエラー回避？と思われますが、忘れました・・・。😥 libretroが「C99、C++99を目指そう」としているので、その意気込みを入れたのかも？ 外して、再チェックしてみますね。

Apple系はLLVMで、gccとは異なるので、 規約通りの動きをしてくれない事が多いです。

There is 'Serial options' in X11 NP2's menu. But I click it, work nothing. I think that the predecessor tried to implement it. I try implementing with reference to NP21/W.

Thanks your report! Probrem you said means on MIDI? or FM sound? NP2kai using MIDI without buffer. (Libretro may has something buffer.) FM sound use libretro's sound buffer. Regards.

Did you install xnp2kai with 'sudo make install'? additon: Do you use GNOME flavor distribution？