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Popsloader.prx: Increase PSX emulation compatibility on PSP

Date: 03-27-2009   Click: 1687
UPDATE: Latest CFW is 5.0 M33-3. There is now a new popsloader for 5.0 M33-3 (not for M33-2 or less), supporting FW up do 5.0. As usual on dark-alex.org
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UPDATE INFO:

You should always use the latest M33 and the latest popsloader found on dark-alex.org regardless wich version the guide tells you to use (unless specified). I don't know if I have the time to update everytime DaX updates his stuff. If there should be any major changes that are not covered, you can contact me via PM.

Since I did not see that many PSP related guides on snesorama, i decidet to write a guide on how to install the popsloader plugin (incl. creating your own firmware dump) to increase the compatibility of the (more or less) official Sony PSX emulator for the PSP.


Some history lesson
skip this if you are familiar with the psp scene

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Almost a year ago Sony released firmware version 3.00, that enabled the PSP to run PSX games bought at the Sony online store. The games itself came in a PSP specific container (eboot.pbp) in order to prevent us from converting our own games (that we bought years ago from our hard earned money).
Well, the famous PSP hacker Dark~Alex, famous for his custom firmwares, downgraders and homebrew enablers, managed to write a handy little tool called popstation.exe, giving us the possibility to convert our PSX images into eboot.pbp and let them run under DeviceHook firmware emulation (that means on any homebrew enabled PSP) or under his own custom firmware series (OE - Open Edition).
How to convert PSX games to PSP eboot.pbp?

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See http://snesorama.us/board/showthread.php?t=23280 for a guide.
See http://snesorama.us/board/showthread.php?t=23281 for trouble shooting.
Why popsloader.prx?
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Since the original emulator made by Sony is only optimized for the games you can buy an the Sony online store, many games certain bug and crash issues. Alot of those issues can be solved by using a proper image, applying a patch (like FF9 and it's copy protection), or simply using Game ID "SLPS-01222" (for this is the ID of the Game used to hack the emulator).
But in some cases, a certain firmware version "accidently" supports a certain game better than older/newer ones. Final Fantasy 7, to give an example, used to run under 3.10 without any special issiues, but every other version, including the later ones, seemed to cause random crashes and massiv graphic/speedbugs.

Since there is a custom firmware for every Sony released orignal firmware, it would be a pain in the butt to be forced to reinstall the firmware for every PSP game you want to play. Furthermore, the new PSP Slim&Light is not capable of using a firmware below 3.60, since it has a different screen resolution. Well, Dark~Alex (and the team around him) invented a tiny little plugin, giving us a way to load the old popstation-files from older firmwares without beeing forced to flash the psp between every buggy game.

 
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