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what are the thoughts on solving this randomization thing? Or is psp assembly officially dead at 2.5?

EDIT: nm I have a working solution

sorry iso loader for 2.6 :P

Well, all I have to say is if everyone who has done anything great for the pspdev community on their own accord took a couple hours to write a page about what kinds of troubles they encountered, how they overcame them, and details that someone fresh on the scene would eat up; then I am sure we would...

Could you forward the same info my way?

bradskins (underscore) 28@hotmail.....

thanks!

AHH, the 2.50 memory dump is now avaliable without having to use other hardware . i was thinking something along the lines of a device that would be hardwired to the psp to know all of the memory, but if that was possible it would make things easy.

Im sorry if I am not skilled, but I do have time, and Iam study comsci at the university....... I guess to start I have to get the memory dumps going... or

where can I find memory dumps, can someone email/link dumps for me?

and the 2.50 memory dump..... it takes hardware to do that, right?

Ok now, I found a nice entry http://www.psphacks.net/content/view/180/ and it brings the question.... does GTA use this kind of encryption? Actually I should be asking... does GTA's savegame use this kind of encryption? If not, then I can see how we were able to run code, if the psp is not trying to...

are there any psar dumpers/prx decryptors for windows?

my psp is now 2.60, I dont have GTA to run the pasr/prx untils from my psp, and i need a dump of the 2.70 and 2.60 udates. If there are any windows programs that can do this please let me know.

bradskins_28@hotmail.com

Yeah, you are right, I do need to read up more. If the eboots need to be signed with a signature that has details about what the code is, then the psp can check the program and make sure it matches the signature. Right? on all fw >1.50. But GTA exploits works by... using an exploit something to do w...

oh yeah and I have looked at the downgrader example, but it is run within an environment. I want to know how to find a way to run any bit of code outside the GTA exploit, is the a way? I;m sure if user mode can be accesed outside of GTA then we can get to system access in the same way as the downgra...

and if I was working on an exploit, would I still want to pack my assembly in the usual way? For instance, how could I get my assembly code working on a version 2.60 psp? could I just R.E. the 2.71 update, as well as decrypt the PRX files, insert my line of code in an appropriate location, and then ...

Oh i forgot to mention, 0okm0000 gave me all I will ever need to compile C to assembly

Thanks man

Great example, but it is a little confusing because there are no syscalls. I was interested in finding a program that make use of the callbackthread syscalls and what not so I could write a program that uses the home and power functions properly. As for a reference I nabbed a copy of "See MIPS ...

I have a few questions about assembly language programming. 1. How can you dump C code to PSP assembly? 2. Does Fanjit's new TIFF exploit loader require 1.00, 1.50, 1.51 or 2.00 syscalls? 3. Can anyone who has some nicely documented assembly for the PSP please send me it to learn from? I know for su...

could you tell me the exact value of vramtop?

if it is 0x04000000 dont bother.... but if it is something else please tell me!

sorry i am working in mips only, so all these c variables dont mean anything unles i know their exact value

Another simple question,

What is the uncached memory location of the second buffer? Or is there only a cashed memory location?

Then if there is only a cached location for the second buffer, how do you set up the vram so it does not miss the start/stop commands?

ok well it wouldn't be a matter of simple interpretation.

First of all like was said before mipsIII is compatible with mipsIV so that wouldnt be a problem.

The problem lies in the device adresses and the perifrial things not on CPU instructs.

you can use mips asm as well, no problem, if your a hard noser

what about ASM?

but to stay in good spirit, good luck!

id thought hed be back...

geeze, dont give THOSE kinds answers, or else theyll come back for more!
:P

i was wondering, was this trailer in the demo version ever released in a UMD? I dont mean to flame, it just that when something looks too good to be true it usually is. Could this just be the PMF player striped down with a UMD-ripped preview? hopefully someone can confrm that it is not what i think...

i was wondering, was this trailer in the demo version ever released in a UMD? I dont mean to flame, it just that when something looks too good to be true it usually is. Could this just be the PMF player striped down with a UMD-ripped preview? hopefully someone can confrm that it is not what i think ...