Dreamcast Arcade Stick problems!!!

[jamessocha]

I've set up my recal box as a mobile arcade system and the joystick and buttons work great with everything but dreamcast.
All of my directional controls are reversed with the dreamcast emulator and nothing else. seeing as this is my first time ever dealing with this could I get a walkthrough on how to fix this problem please. Thank you in advance. Also I only speak english.