QJ.net Game Discussion - PSP, Xbox, Wii, PS3, PSP Homebrew, and PSP Guides

mefdada · 06-25-2006, 03:23 AM

Hi, i have an easy(i hope for you it is easy to answer) question.

What I've found yet is the 'PBP Unpacker v0.94' to open the PBP files. But now - is there any way i can get asm code, or anything else out of the .PSP files? I mean if theres a compiler, then there must also be a thing to do the opposite?
I'm not really into coding Homebrew myself but im just interessted in the content of all those files :mrgreen: . What ive done is search on google and here on the forums. But google gives me tons of progs to open PSP (PaintShopPro) files, but nothing for the psp I mean, so maybe anyone out there could give me a hint..

mef

**SG57** · 06-25-2006, 03:47 AM

'The opposite of a compiler' is a 'decompiler' and there isnt one for the PSP. Atleast not down to raw ASM source.

As for seeing the content in it, it soley depends on what it came from. Saved game, update, UMD...

But im kinda guessing here and there so feel free to correct me if im wrong somewhere.

**will1234** · 06-25-2006, 04:04 AM

there is a psp decompiler. infact theres a few of them but i cant remember the names. sg57 if there wasnt a decompiler how do u figure darkalex decompiled umd emulator

mefdada · 06-25-2006, 05:20 AM

The thing is, i downloaded PortableVNC. I knew it wouldnt run but I wanted to play arround with it a bit. So when i first tried to start it i got directly the error message. Then I played arround a bit with the SFO file of PortableVNC(copied some elements from locoroco). Now it shows first that animation showing "PlaystationPortable" (the same that it shows when you start any game). Well i still get the error afterwards

Since I sort of started 'homebrewing' half a day ago I don't think thats anything great (?). But I have experience in programming C and regarding reverse engineering I wouldn't call myself a 100% noob so .. I would want to know whats in the PSP File ;-)

btw. Unfortunatly I'm using 2.71, I accidentally installed it some time cause that 'demo' stuff freaked me out somehow. Kinda sucks that there are still only two demos out yet -.-

**will1234** · 06-25-2006, 06:00 AM

u wont get any nearer to running it by decompliling it.

**SG57** · 06-25-2006, 06:15 AM

Quote:

Originally Posted by will1234

there is a psp decompiler. infact theres a few of them but i cant remember the names. sg57 if there wasnt a decompiler how do u figure darkalex decompiled umd emualtor

I could have sworn darkalex had decomplied it from binary to ASM... AKA manual decompilation.

jesistehsux · 06-25-2006, 06:34 AM

Lightforce released a "psp" extraction tool. I do not know if it is a universal format but if you look for "Outrun 2006: Coast to Coast" by LFC you may find a standalone release of the .psp unpacker utility.

If I am not mistaken Sony is cramming most PRX files into the data.psp file to prevent them from being swapped/patched in from other titles in order to get games working partially.

**will1234** · 06-25-2006, 07:03 AM

http://www.umdgen.com/utilities.html the bottom 4 are psp disassemblers. enjoy

**Flamingwolf** · 06-25-2006, 07:03 AM

sg57, Darkalex decompiled a PRX, and that was manually cuz there is no tool to decompile PRXs

**SG57** · 06-25-2006, 02:35 PM

Mkay, I knew he decompiled something manually.

06-25-2006, 03:23 AM	#1
mefdada Join Date: Jun 2006 Posts: 3 Trader Feedback: 0	.PSP files Hi, i have an easy(i hope for you it is easy to answer) question. What I've found yet is the 'PBP Unpacker v0.94' to open the PBP files. But now - is there any way i can get asm code, or anything else out of the .PSP files? I mean if theres a compiler, then there must also be a thing to do the opposite? I'm not really into coding Homebrew myself but im just interessted in the content of all those files :mrgreen: . What ive done is search on google and here on the forums. But google gives me tons of progs to open PSP (PaintShopPro) files, but nothing for the psp I mean, so maybe anyone out there could give me a hint.. mef

06-25-2006, 03:47 AM	#2
SG57 ...in a dream... Join Date: Jul 2005 Posts: 4,957 Trader Feedback: 0	'The opposite of a compiler' is a 'decompiler' and there isnt one for the PSP. Atleast not down to raw ASM source. As for seeing the content in it, it soley depends on what it came from. Saved game, update, UMD... But im kinda guessing here and there so feel free to correct me if im wrong somewhere. __________________ ...you'll never know what it's like... spending your whole life in a dream... Launch a Kitten out of a Cannon and win real cash! Checkout my newly updated site for all my projects (Kitten Cannon, BOXHEAD, Light Cycle 3D)

06-25-2006, 04:04 AM	#3
will1234 Join Date: Oct 2005 Real First Name: Will Location: Sheffield, UK Posts: 844 Trader Feedback: 0	there is a psp decompiler. infact theres a few of them but i cant remember the names. sg57 if there wasnt a decompiler how do u figure darkalex decompiled umd emulator Last edited by will1234; 06-25-2006 at 06:00 AM..

06-25-2006, 05:20 AM	#4
mefdada Join Date: Jun 2006 Posts: 3 Trader Feedback: 0	The thing is, i downloaded PortableVNC. I knew it wouldnt run but I wanted to play arround with it a bit. So when i first tried to start it i got directly the error message. Then I played arround a bit with the SFO file of PortableVNC(copied some elements from locoroco). Now it shows first that animation showing "PlaystationPortable" (the same that it shows when you start any game). Well i still get the error afterwards Since I sort of started 'homebrewing' half a day ago I don't think thats anything great (?). But I have experience in programming C and regarding reverse engineering I wouldn't call myself a 100% noob so .. I would want to know whats in the PSP File ;-) btw. Unfortunatly I'm using 2.71, I accidentally installed it some time cause that 'demo' stuff freaked me out somehow. Kinda sucks that there are still only two demos out yet -.- Last edited by mefdada; 06-25-2006 at 05:23 AM..

06-25-2006, 07:03 AM	#9
Flamingwolf Join Date: Jan 2006 Posts: 923 Trader Feedback: 0	sg57, Darkalex decompiled a PRX, and that was manually cuz there is no tool to decompile PRXs __________________ [CENTER][COLOR="DarkOrange"]--> ˙ƃuıʎɐs ɯɐ ı ʇɐɥʍ ɟo pɹoʍ ǝıƃuıs ɐ puɐʇsɹǝpun ʇ,uop ı sǝɯıʇǝɯos ʇɐɥʇ ɹǝʌǝıɔ os ɯɐ ı <--[/COLOR][/CENTER]

06-25-2006, 06:00 AM	#5
will1234 Join Date: Oct 2005 Real First Name: Will Location: Sheffield, UK Posts: 844 Trader Feedback: 0	u wont get any nearer to running it by decompliling it.

06-25-2006, 06:34 AM	#7
jesistehsux Join Date: Aug 2005 Posts: 42 Trader Feedback: 0	Lightforce released a "psp" extraction tool. I do not know if it is a universal format but if you look for "Outrun 2006: Coast to Coast" by LFC you may find a standalone release of the .psp unpacker utility. If I am not mistaken Sony is cramming most PRX files into the data.psp file to prevent them from being swapped/patched in from other titles in order to get games working partially.

06-25-2006, 02:35 PM	#10
SG57 ...in a dream... Join Date: Jul 2005 Posts: 4,957 Trader Feedback: 0	Mkay, I knew he decompiled something manually. __________________ ...you'll never know what it's like... spending your whole life in a dream... Launch a Kitten out of a Cannon and win real cash! Checkout my newly updated site for all my projects (Kitten Cannon, BOXHEAD, Light Cycle 3D)