Portable | Joukey Gm Checksum Plugin

The plugin supports various checksum algorithms, including:

The is a free, dedicated utility designed specifically to recalculate and rewrite the checksum values in Sega Genesis/Mega Drive ROM headers. Named after its creator (Joukey), this plugin is often bundled with or used alongside ROM patching tools like GoodMerge , NSRT , or standalone hex editors. joukey gm checksum plugin

Using the Joukey plugin is generally a straightforward three-step process: The plugin supports various checksum algorithms

Set the to 0 and the End Address to your file's binary size. including: The is a free