Ipsy is a tool for applying IPS (International/Internal Patch System) files. They are typically used for distributing emulator ROM changes as distributing the patched ROM would violate copyright law.
You can install ipsy-0.1 via pypi `pip3 install ipsy` or via the wheel below.
Features
- Merge
- Combine multiple IPS patches into one large patch
- Patch
- Apply an IPS patch to target file
- Option to skip false EOF markers
- Diff
- Create IPS patch given an unaltered and altered version
- Option to use run length encoding
Issues
- RLE algorithm doesn't find all possible compression opportunities, only the obvious ones.
- Merge overlooks some instances where records could be simplified.