If region is set to Japan, emulates HPD-200 controller.
If region is set to US/UE, emulates export paddle which is non-existent but implemented in some games.
Tested with these games which support paddle.
Game
Japan
US/UE
Alex Kidd BMX Trial (JP)
✅
✅
Galactic Protector (JP)
✅
✅
Megumi Rescue (JP)
✅
✅
OutRun (World)
✅
❌
OutRun 3D (EU)
✅
❌
Super Racing (JP)
✅
❌
Woody Pop (JP)
✅
✅
I don't know if the failures are due to something missing in this addition, or if it is not supported originally.
By the way, HPD-200 with US/UE region or export paddle with Japan region did not worked,
so I didn't make it selectable but dependent on region setting.
If region is set to Japan, emulates HPD-200 controller. If region is set to US/UE, emulates export paddle which is non-existent but implemented in some games.
Tested with these games which support paddle.
I don't know if the failures are due to something missing in this addition, or if it is not supported originally.
By the way, HPD-200 with US/UE region or export paddle with Japan region did not worked, so I didn't make it selectable but dependent on region setting.
Reference: https://www.smspower.org/Development/Paddle https://www.raphnet.net/electronique/sms_paddle/index_en.php