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I was able to get it working - it just can't be run under psplink for me. Probably just an old version issue.

Thanks for the sample cooleyes!

Has anyone got this working? I'm trying to test it out and am having a bit of trouble; I put an MP4 on my memory stick and ran the app, it prints out the track information for the file but it fails with 'err: sceMpegInit'. Using psplink's modlist command after this error, I see that sceMpeg_library ...

yeah, it'd be nice to have a concentrated effort at cracking these again - there are a lot of unknown user-mode nids

wow someone else working on an emulator - nice!

not sure if that makes me want to work harder on mine, or sit back and watch you finish yours :)

GPUs are highly optimized to do SIMD (Single Instruction on Multiple Data) stuff. yadda yadda I'm not disagreeing on GPGPU - believe me, I've done work with it myself. I'm strictly talking in the context of the PSPs graphics engine - you'd be much better off writing something for the ME (2nd proces...

The GE is a fixed-function pipeline - no real programmability. About all the GE can do is jump/call other display lists based on bounding box tests, and I'm not even sure that's fast enough to justify doing it there (I haven't seen it used).

I've got things working now! I get occasional crashes (bus errors - invalid instruction), probably memory access issues or stack overwriting. I did find a bug in psplink though - line 191 of psplink/kmode.S should be 8($sp), not 4($sp) - it's loading the same lower word in to the upper word return r...

Right - I'm just patching up the syscall table. I noticed weird behavior with psplink when hooking certain routines - maybe caused by psplink_user or other things launched from psplink. Any tips on how to get kernel mode prxs working from within psplink when not launched standalone? I noticed remote...

Yep, the output looks something like this: ~0x05053717 -> sceGeSetCallback&#91;0xA4FC06A4&#93;&#40;0x09FBFC90&#41; from 0x08943560 ~0x05053717 <- sceGeSetCallback&#91;0xA4FC06A4&#93; = 0 ~0x05053717 -> sceGeEdramGetAddr&#91;0xE47E40E4&#93;&#40;&#41; from 0x089...

I've needed a general API tracing tool for awhile and had been putting it off, but I finally came around to writing it yesterday. It allows you to define the routines you want to hook in a file and have them all logged to stdout. It's similar to the apihook stuff in psplink (and half based on it), b...

I'm also working on one!
http://code.google.com/p/pspplayer/

I set up some Google groups:
http://groups.google.com/group/pspplayer-general?hl=en
http://groups.google.com/group/pspplayer-dev?hl=en
You can also join me in #pspdev (on FreeNode) if you have any questions.

You need to be careful... most employers have a policy in the contracts that any work done at work belongs to them. Many have policies that even work done at home belongs to them (I had to have my last employer specifically remove that part before I'd sign). Yeah, I did the same thing - I just put ...

Wooo, Puzzle Bobble working in mine now :)

http://code.google.com/p/pspplayer/wiki/Screenshots

Yeah I have everything componentized and everything is fairly portable.... kind of. The current CPU and video plugins are written in C++/CLI, and mono doesn't (yet) support that. There's been talk of a gcc mod, and a google summer of code entry, but nothing that works. The frontend is fairly easy to...

Haha yeah :P Thanks! I went with the LGPL just because I wanted to give people the ability to write plugins without releasing the source. Not that anyone but me will ever write a plugin... I've got a GE impl - it's in a separate plugin. It needs a little tweaking, but runs ok. All of my machines are...

I did that - it makes things A LOT easier. I actually went one step further: I get a list of all modules and NIDs from libpspdoc.xml, then for each one search in the pspsdk header files for the function definition. This allows me to generate complete source files with arguments and everything. I eve...

I've got mine setup so that it has a lookaside during module loading. If the module from the game is unencrypted and not in the list, I just load it and this seems to work fine. If it's encrypted or in the lookaside list, it will load from the host machine. I decrypted a bunch of PRXs and stuck them...

Sweet! I remember seeing Aenea's tool. Wish it had source! Yeah I doubt the security will be cracked any time soon, and I think anyone who is trying to write an emulator is going the HLE approach (as too little is known about the hardware (especially around security) and computers aren't fast enough...

Yeah, that's the trick. I've found only a handful of commercial games (at least out of the ones that I own) don't have a valid BOOT.BIN. Demos seem to be the ones that most frequently don't have it (or have it zeroed). Another stumbling point are games that load modules - most games that use modules...

Good work ector. I've been working on mine on and off for a year and am just now getting to the point where I can run PB (I get to the taito screen, but deadlock after that). I haven't had a chance to look at your code yet, but I appreciate you releasing it to the public!

I was interested in this as well. I haven't seen them used. Anyone have any tips?

Good points! Thanks for the response!
Now I have to think on this for a little bit :)

Hey all, I was wondering if some of the gurus here could help me with some details of the GE. What I'm interested in is the overall operation of the GE and how it processes lists. First off, the flow. As I understand it, here's what happens in the trivial case (no stalling): - user builds display li...

Glad it worked for you, and thanks for posting the results. For anyone looking in the future, this will be the thread to see :)

hmm... if it rely on libjpeg, then the only improvement is the downsampling speed, but I guess the decompression with huffman and DCT ist the really time consuming stuff. Wrong. It only reads the lines from the image it needs for the desired size image. As long as the underlying file APIs are smart...

My day job deals with nothing but photos, so I've got some experience here :) My suggestion is to go with epeg ( http://www.enlightenment.org/Libraries/Epeg/ ) (or hack it up and change it to your liking like I did). It is incredibly fast at what it does, and combined with a few tricks (such as samp...

Great work, thanks :)

Cool!
Any chance of posting this as a png/psd with an alpha channel?

Yeah, sorry for polluting google. I may add a robot.txt so it doesn't get the code, but just the wiki. I confuse myself sometimes while searching for kernel functions, finding some linked code, and thinking 'what the hell is this?', only to realize it's mine ;) I can run PSPTris and trigonometry war...