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Description : PSP Developer Wololo has written a pretty interesting post about Frequently Asked Questions about Half-Byte Loader on PS vita . This will hopefully help answers some question that PS Vita owners and the homebrew community has been asking about the HBL on PS Vita .
So if you are a fan of HBL (Half-Byte Loader) and are wondering HBL on PS Vita and HBL features that will be made available on the PS Vita . You might to go ahead and read the FAQ below . Please note that this FAQ provided on this post about HBL on PS Vita was written by Wololo a respected PSP Developer in the homebrew community .
The following information is from Wololo post title “A FAQ for HBL on the Vita ”
What is HBL?
HBL stands for “Half Byte Loader”. This is a homebrew loader for the PSP, which was written initially by m0skit0, then improved and maintained by a bunch of devs including myself (those two links are good old memories, when HBL wasn’t loading a single homebrew properly). It basically allows to run fanmade games, emulators, etc… on the PSP. We’ve found that it can run on the PS Vita through the PSP emulator.
Will this allow to run PSP backups (isos)?
Although in theory that would be possible, HBL only has access to the PSP “user mode” which is fairly limited. Practically, all teams who have tried to create an iso loader in user mode on the PSP have failed so far.
Will this allow to run PS Vita game backups?
Does this give us access to the Vita hardware (touch screen, etc…)?
No. HBL accesses the hardware through the PSP emulator, and therefore only has access to what is mapped to the PSP controls. It also only has access to 32MB of ram, etc…
Does this give us possibilities to hack the vita further?
Most likely, not. HBL is stuck in user mode, in a sandboxed emulator. To get access to Vita information, we would need first to get kernel access in the emulator (through a psp kernel exploit), and then find other exploits in the emulator/OS itself to break away from the sandbox (which, if the Vita OS is as secure as I think it is, is close to impossible)
But will it give us more horsepower than the psp? Can we expect emulators to run faster, etc?
This still needs to be investigated deeper, but from what I’ve seen, not really. Memory stick access is definitely faster on the vita (Wagic loads between 5 and 10 times faster on the vita than on a psp go), but the rest seems to follow the psp limitations (as one would expect from an emulator)
Will this be made public?
Yes. Teck4 (who found the exploit) and I agreed to making this public at some point.
When will this be made public?
Some time after the Vita is released worldwide.
I heard Sony can patch this very easily as soon as it’s made public?
Yes. Since this uses a vulnerability in a PSP game, as soon as they know which game it is, Sony can remove the game from the PS Store. Once they do that, they can patch the Vita firmware to reject the “malicious” files (either by preventing them from being copied through the content manager assistant, or by patching the PSP emulator, or by patching the PSP game, etc…). At that point, people who don’t already have the game on their console won’t be able to use HBL. Also, people who do have HBL will need to never upgrade their firmware, will have to use some tools such as OpenCMA in order to copy files to the vita, and will be locked out of the PS Store as long as they want to use homebrews.
So shouldn’t you keep this under wraps instead?
Meh, it’s not like anything is really secret here besides the name of the game. It’s already pretty sure this is not useful for hacking the vita further, so even if it gets patched I don’t think we will lose “too much”.
No iso, no access to the vita internals, and Sony will patch it as soon as it’s out, so basically it’s useless?
Yes and No. Technically, a hacked PSP is way cheaper and will allow you to do more than that. But this is, as I write these lines, the only way to run unsigned code on the Vita, which in itself makes it a great achievement (and it’s always cool to show your friends that your Vita can run Mario, and theirs can’t). Also, it didn’t take too much time to adapt since most of the code was already available from our past work in the psp scene. It would have been even more useless to say “oh yeah, interesting, we can run psp exploits on the vita” and not do anything with it.
How do you copy/install homebrews to the ps vita, since it cannot be mounted as a regular usb drive?
This will be explained when HBL is released.
So hopefully reading this FAQ for HBL on PS Vita was able to give you a bit inside view about HBL on PS Vita and the feature HBL will utilize on the PS Vita . We do hope that wololo and rest of the developers behind the development will release a PS Vita version HBL for the homebrew community sometime in the next coming weeks when the PS Vita is finally release to the rest of the region coming this Feb 22nd of 2012 .
Keep checking back as we will tried to bring you all the latest information about HBL – Half Byte loader for PS Vita .
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