If you are diving into arcade emulation or hardware preservation, you will inevitably encounter the term . Understanding how Tekken 3 utilizes NVRAM is the key to unlocking hidden characters, saving high scores, and troubleshooting emulation glitches. What is NVRAM?

Arcade configurations such as difficulty level, volume, coin settings, and region codes.

The System 12 CPU (a MIPS R3000-based Sony CPU) addresses the NVRAM through memory-mapped I/O. The BIOS handles the low-level read/write operations. The NVRAM is generally mapped to a specific address range that the game executable calls upon when saving high scores or checking DIP switch settings.