EatonZ released XePatch - a complete free/open-source patch editor that will let you edit compiled patches and compile new ones with ease.

Features
* Easy to navigate GUI.
* A full compiled patch editor. It allows you to edit the existing patches, add new patches, and delete existing patches.
* Supports v1 and v2 DashLaunch patches.
* Supports FreeBoot patches, as well as all patch slots.
* Validation features on all text fields to ensure that you do not input any invalid data or addresses.
* A simple patch source editor. Complete with a compiler thanks to the Xenon PPC assembly compilers (made by ?).

Future
* There are no future versions of XePatch planned outside of bug fixes. Full decompiling may be looked into in the future, but it doesn't seem possible.

Requirements
* The FULL version of .NET Framework v4.0. Download
* An up to date computer; visit Windows Update.
Official Site/Download: http://eaton-works.com/xepatch
http://www.xbox-scene.com/xbox1data/...VkvUhGHDTm.php