Joukey Gm Checksum Plugin

Some Genesis games have a "Soft Reset" (A+B+C+Start) that triggers a checksum recalculation. Even if you bypass the boot check, the game might recalculate on reset and crash. Joukey’s plugin often patches the reset vector as well, preventing this secondary check.

: If the plugin doesn't appear in TunerPro, ensure you have the required Microsoft .NET 4.0 or Visual C++ Runtimes installed. joukey gm checksum plugin

GameMaker versions vary (GM8, GMS1, GMS2). The plugin attempts to parse the executable to understand which version it is dealing with, ensuring it looks for the checksum in the correct memory region. Some Genesis games have a "Soft Reset" (A+B+C+Start)

: Designed for newer 2MB E38 and E67 PCM binary files. : If the plugin doesn't appear in TunerPro,

| Tool | Accuracy | Batch Support | Header Detection | Easy GUI | |------|----------|---------------|------------------|-----------| | | Excellent | Yes (CLI) | Auto (BIN/SMD) | Basic but functional | | Gens Tracer | Good | No | Manual only | Yes | | FixCheckSum (by H. Østergaard) | Fair | Yes | Confused by interleaved SMD | No | | MAME ROM manager | Overkill | Yes | Requires XML dat | Complex |

Copy the .dll file into the Plugins folder inside your TunerPro V5 installation directory (e.g., C:\Program Files (x86)\TunerPro V5\Plugins ).