mame mslug -bios aes # Run as AES (home console) mame mslug -bios euro # European MVS Edit mame.ini :
Use a (e.g., ClrMAMEPro, ROMVault) to keep BIOS files up-to-date with your MAME version. 6. Configuring BIOS in MAME Default behavior MAME automatically loads the correct BIOS based on the game driver. No manual config needed if files are present. Manual BIOS selection (multiple versions) Some systems have alternative BIOS versions (e.g., Neo Geo: MVS vs AES, or different regions). mame bios
mame -verifyroms neogeo Output should be: mame mslug -bios aes # Run as AES
romset neogeo is good Check all BIOS files at once (slow): Neo Geo: MVS vs AES
mame gamename -bios biostag Find biostag in MAME’s -listxml output:
