epr-18022.ic2 file is a specific EEPROM/BIOS dump required to run various Sega arcade systems in MAME, most notably the Sega Versus City Billboard
For further technical details or source code verification, you can reference the MAME source code on GitHub . mame/src/mame/sega/segabill.cpp at master - GitHub epr18022ic2 mame download exclusive
folder; do not extract them unless you create a sub-folder with the exact zip name. epr-18022
: It is located at position IC2 on the drive board. epr18022ic2 mame download exclusive