forums.ps2dev.org

nem · Joined: 13 Jan 2005 Posts: 73

Greeting fellows. It's Hello World for PSP.
http://anon.ug.to/sec/index.html

ooPo · Posted: Thu May 05, 2005 5:03 pm Post subject:

Woohoo! Great work.

More pictures are available at:

http://pics.oopo.net/2005-05-05-HELLOPSP

Grover · Joined: 23 Feb 2005 Posts: 50

Well now.. that is frikkin sweet!!!
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originalself · Joined: 09 Apr 2005 Posts: 9

congratulations.

Neila · Joined: 23 Apr 2005 Posts: 79 Location: Canada

Congratulations! =)
that IS sweet
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Grover · Joined: 23 Feb 2005 Posts: 50

Interestingly this EBOOT.PBP wasnt put together with elf2psp command line tool - either there is a necessary update for this tool, or need a different tool? BTW please bash me.. for being so pessimistic about this.. there has been alot of hype.. and has been driving me nuts.. Its wiked this is now possible...
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ooPo · Posted: Thu May 05, 2005 5:26 pm Post subject:

Any pbp packer would do, such as the nice one pdc did a while back.

http://forums.ps2dev.org/viewtopic.php?t=1316

konfig · Joined: 06 Jan 2005 Posts: 68

excellent work!

This brings great hope of full dev.

MelGibson · Joined: 10 Apr 2005 Posts: 58

Amazing Times we're living in :D

Now thats something....

ripnet · Joined: 05 May 2005 Posts: 12

... has anyone independently verified that this boots on a 1.0 psp? i only have 1.5 and cant check, but until someone else checks it and verifys that its actually running code, all we have is a custom image on a psp, which is default behaviour supported by Sony... i find it very hard to believe that Sony failed to lock down the v1.0 THAT badly :)

Drakonite · Site Admin Joined: 17 Jan 2004 Posts: 989

Grover · Joined: 23 Feb 2005 Posts: 50

yah.. Oopo has basically shown what people asked for in the other thread. This is the s**t.. kudos to you Oops.. thanks..
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malloc · Joined: 28 Apr 2005 Posts: 23

Great, now that the PBP hack on 1.0 has been verified by others,
we can go forward :)
We need to find a way to make it work on 1.5 !

inomine · Joined: 05 May 2005 Posts: 53

This boots fine on my Jap V1 PSP, pictures can be arranged for all you non-believers. Great work, I am practically salivating at the possibilities.

weak · Joined: 13 Jan 2005 Posts: 114 Location: Vienna, Austria

nice work!

let the games begin ;)

btw: works like a charm

engstrom · Joined: 23 Apr 2005 Posts: 9

Pit0711 · Posted: Thu May 05, 2005 9:26 pm Post subject:

Great work...
but i have a 1.5 :-(

1.5 movie :-)
http://www.putfile.com/media.php?n=IMAG0039

asmodi · Posted: Thu May 05, 2005 9:30 pm Post subject:

Thought I would see even more crazyness when you released nem :p
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ripnet · Joined: 05 May 2005 Posts: 12

Sorry oPPO - i didnt realise you had independently tested it and were trusted :) Lookin' good... g

sq377 · Joined: 11 Apr 2005 Posts: 87

Now try that code in a wipeout pure ghost save file. Those were suspected of being able to execute code as well.

subbie · Joined: 05 May 2005 Posts: 122

I too can verify it works this morning. WOOOT

*pats him self on the sholder*

I knew there was a good damn reason not to update my firmware! :D

Grover · Joined: 23 Feb 2005 Posts: 50

Im not sure if this is the right place for this but, if the version 1.0 Jap versions (like I have) were updated then the EBOOT.PBP installer they run, must be unencrypted right? If this is so, then sure this can be reverse engineered to find out the 'flags/whatever' needed to turn encryption back off again :-)

I updated to 1.5.. and well.. yeah.. Im hoping this seems logical..
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lmx · Joined: 01 Apr 2005 Posts: 25

Grover · Joined: 23 Feb 2005 Posts: 50

I think lmx misunderstood what I said. Basically if the EBOOT.PBP is run to _install_ V1.5 onto a V1.0 system, then the EBOOT.PBP would be unencrypted because the V1.5 isnt yet installed? Hence, you pull apart EBOOT.PBP, say the DATA.PSAR or DATA.PSP and try and find the likely parts that are doing this (ie, would need some serious dissasembly.. on a 3.7 or 10.1 MB file). Then, modify the 1.5 installer to _not_ turn on the encryption that was activated with it - this assumes that this firmware would replace the current one on your PSP, and then youd have a V1.5 with no exe encrpytion? Or maybe I have totally missed something.
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PspPet · Joined: 30 Mar 2005 Posts: 210

Cool!
Glad this one didn't turn out to be a hoax like all the rest...

-----
re: encryption issues
Since the PSP 1.0 JP firmware has both the exploit (load unencrypted ELF) and the code for unencrypting encrypted programs (ie. an EBOOT.PBP for flash update, and for encrypted games), this is the best of both worlds.

As hinted, there may be an easier way to revert a version 1.5 PSP back to the 1.0 version, but if not...
Someone with a 1.0 PSP can now start looking at the system and seeing how the existing firmware works (assuming it is not heavily protected on the inside). This may open up many more possibilities.

As suggested, one possibility would be to add the unencrypted ELF exploit to the 1.5 firmware, or make a different loader option. However the encryption technology must be understood first.

Of course if someone gets a reflashing tool working now, then a lot more people can jump on the homebrew bandwagon (without having to find a non-updated PSP import)

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> Basically if the EBOOT.PBP is run to _install_ V1.5 onto a V1.0 system, then the EBOOT.PBP would be unencrypted because the V1.5 isnt yet installed? ...
The 1.0 system can do both. Encryption wasn't just added in the V1.5 update - it was there all along. Apparently the V1.5 update patches the hole.
NOTE: Sony did this same thing with their AIBO, in 2 different cases. One case (RCODE) was originally released in Japan with a big hole, but was patched by the time they did the US release.

originalself · Joined: 09 Apr 2005 Posts: 9

Now that would be tedious work, but anything is possible. If a fairly easy flashing system is developed down the road, custom updates would be a good way to keep users systems up to date and homebrew friendly.

Orion_ · Joined: 27 Jan 2005 Posts: 69

great work nem :)
would it be possible to have some technical info about how you did this hello world ?
how did you find how to init hardware, and show something on the screen ?

sq377 · Joined: 11 Apr 2005 Posts: 87

Orion_ · Joined: 27 Jan 2005 Posts: 69

pixel · Joined: 30 Jan 2004 Posts: 791

Seems it has quite nothing to do... Their source seems to contain too much of the SDK stuff. Nuff said.
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