Half Byte Loader SVN r97 is released. Half Byte Loader is a project to build an easy to port user-mode homebrew loader for game exploits.

How to install and use Half Byte Loader:
1. Install the Patapon 2 Demo
2. Connect PSP with USB
3. Copy the “hbl” directory and the “h.bin” file to ms0: (copy them to the root)
4. Copy UCUS98732_DATA02 (Patapon 2 SAVEDATA) to ms0:/PSP/SAVEDATA
5. Copy your homebrew to ms0:/PSP/GAME
6. Load the demo, load the hacked save, load your homebrew.

Half Byte Loader SVN Changelog:
r97
wololo
- fix for issue 296 (off by 1 error). No visible change
- fix for issue 137 (reset graphics). Fixes graphic issues with PSP Rhythm,
Spider solitaire, FCE Ultra,...
- added an option for "force exit". Allows to come back to HBL menu for
homebrews that don't have an exit menu. This is an attempt to mitigate issue 181
(exit button not working anymore)
- syscalls_known can now be overriden in the config file for tests purposes
(untested)

Download: Half Byte Loader SVN r97
Source:Here