GPSP for VHBL R148 is an emulator for your PS Vita. Thanks to some nice recompliing work from developer Hysen this PSP emulator is now available for your PS Vita enjoyment. So if you have been in search of a Gameboy Advance emulator you search is now over. One thing to note is some users have reported that some ROMS not being able to be correctly saved and they received a save file error. But this issue seems to be limited to only a few games so they advise you to try saving your game first to make sure it is working correctly. See the additional developer notes below:
"WARNING: GBA.bios is needed! Put in in the root of the gpsp folder before you follow the intructions below. You must also have Winrar installed
- Put desired roms into gpSP/GBA/ROM
- Put any of your old save files into gpSP/GBA/SAV
- After that is done, right-click on the gpSP folder
– Select “add to archive”
– A window will pop up
– Select “ZIP” in the “Archive format” box
– Under Compression method, select “storage”
– Finish up by clicking “OK”
– then rename the new zip file to “install”
– delete or move the old gpsp folder
– delete or move this readme out of the folder
After this is done, you are ready to transfer the homebrew to your Vita via CMA."
Source: http://psvitacfw.com/gpsp-for-vhbl-r148