Half Byte Loader SVN r109 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:
r108
JJS
- This is WORK IN PROGRESS AND NOT RECOMMENDED FOR BINARY DISTRIBUTION
- added alternative version of Hot Shots Golf: Open Tee
r109
JJS
- This is WORK IN PROGRESS AND NOT RECOMMENDED FOR BINARY DISTRIBUTION
- fixed issue 342 (some homebrew crashing on exit)
- added code to track opened files by hooking sceIoOpen/sceIoClose and to close
remaining files on homebrew exit
- now releasing all subinterrupt handler, should fix that no homebrew could run
after gpsp

Download: Half Byte Loader SVN r109 Patapon2
Download: Half Byte Loader SVN r109 Everybody-EU
Download: Half Byte Loader SVN r109 Everybody2-EU
Source: Here