forums.ps2dev.org

jason · Joined: 14 Apr 2005 Posts: 28

I have a question:

I recently heard about the Codewarrior leak, I also saw on these forums that the PSP_gcc-1.3.1.tgz (for linux) kit is included in the Codewarror package. Using this kit one could compile code for the PSP architecture (it's nothing but a cross compiler after all) everything (from what I saw on an irc channel, as I do not own the Codewarrior package) is included in the gcc cross compiler, gcc, as, ld etc (libraries from the Sony SDK kit, i.e. to access the soundcard or to do GFX are probably missing, but simple programs can be compiled just fine.)

One question remains, assuming one could produce code that would work just fine on the PSP, dropping the binary on the memory stick is not enough, some people tried and it's not working, is there a need to populate the memstick.ind file? or any other trick that would make the PSP see the binary as a 'game' and allow it to run?

I have another question, I do not have windows therefore I can not use PBP_unpacker, I would sincerly appreciate if one could make available the files DATA.PSP and DATA.PSAR, so I could take a look at them, thanks a lot!

I also recently heard that DATA.PSP is an executable and DATA.PSAR is a kind of filesystem (or PS ARchive) anyone confirms this and also knows what's the difference between a PSP file and a ELF 32-bit LSB MIPS-II relocatable, MIPS, version 1 (SYSV) executable? And which format is used for the DATA.PSAR file? Is it a tar/cpio/zip/rar like archive or a loopback filesystem?

Thanks for your time.

ChaosKnight · Joined: 14 Apr 2005 Posts: 142 Location: Florida, USA

For your platform problem getting files extracted, just download this file http://www.oopo.net/consoledev/files/unpack-pbp-1.0.1.c and compile it on any compiler. It will extract all files from a PBP file just fine. I also have a program with full C# source, so if you are running linux/mac os x you can get Mono and run that which will also build PBP files for you this link is http://www.animezilla.net/pbpexplorer.zip.

As for the cross-compiler being able to make programs, yes this is true, however Sony has a specific API that you need to hook into to make programs (yes, even pro developers have to use this API) and without that we won't know how to make anything run.

I hope that answers some of your questions.
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asmodi · Posted: Thu Apr 14, 2005 4:29 am Post subject:

First, don't talk about the SDK here, it's not legit.

Second, when did we not have a cross compiler for mips r4k? The problem here has nothing to do with the API. The PSP will not run code that isen't encrypted and digital signed. This has been posted before, so I think you should search the forum for a while.
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It's not in my nature to be mysterious, but I can't talk about it, and I can't talk about why.

jason · Joined: 14 Apr 2005 Posts: 28

jason · Joined: 14 Apr 2005 Posts: 28

ChaosKnight · Joined: 14 Apr 2005 Posts: 142 Location: Florida, USA

The API is more like an opearting system, if not actually an opearting system. Try running a game and hitting the Home key. Also connecting over WiFi will show OS screens. I think Sony really took a hint from Palm OS when they were making this handheld.
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jason · Joined: 14 Apr 2005 Posts: 28

Neil Stevens · Joined: 27 Jan 2005 Posts: 79 Location: California

pixel · Joined: 30 Jan 2004 Posts: 791

I fully agree with Neill. I am more than tempted to lock this thread. Hopefully, it'll still continue on the way it is, without mentionning the leaked Codewarrior SDK. People seem to moderate themselves. But I'll carefully watch the discussion over here, and I'll lock it heartlessly jihad-way if any other mention of the codewarrior SDK is made again there.
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pixel: A mischievous magical spirit associated with screen displays. The computer industry has frequently borrowed from mythology. Witness the sprites in computer graphics, the demons in artificial intelligence and the trolls in the marketing department.

jason · Joined: 14 Apr 2005 Posts: 28

Well, you can just forget about the Codewarrior thing, in any case building a cross-compiler is easy and would produce the same results as using the Codewarrior's xgcc, since no extra libs are provided in this package.

Unfortunately, we do not have any way to run signed binaries, unless they are called from an exploit (this is allowed by the DMCA: since it would be used for the sole purpose of writing interoperable software under Sect. 1201 (f) Reverse Engineering exception of the DMCA.) AES-128 being unfortunately very hard to break, even using a distributed.net architecture.