Hi I’m new to this forum and wanted to know what are the best graphic, sound and system settings for PPSSPP on iOS 11.2.6. I’m playing Tekken 6 on my iPhone X that has some sound glitches. The graphics could be improved as well. I haven’t found any new recommendations of recent for iPhone. Thanks.

Hello! Not sure whether there's a better place to post this so apologies if there is.

I've been wondering whether there is a way to use the tools in PPSSPP and other potentially relevant third-party tools (e.g. Cheat Engine) to determine how a game uses its RNG for certain random actions. In particular, I'm curious about how the game Senjou no Valkyria 3: Extra Edition determines enemy placement when choosing a mission. (Want to see if a certain placement pattern is possible -- just continually trying to roll for it hasn't proven fruitful.)

I already have a few observations about its behavior:
- If you buffer the "Accept mission" button when loading a state, the game uses the same enemy placement. Doesn't seem to be based on in-game clock (wasting some frames, then using Cheat Engine to force the in-game clock to the same framecount does not produce the same enemy placement).
- The enemy placement changes substantially depending on which frame you accept the mission (there doesn't seem to be "local similarity" in adjacent frames).

I have some potentially useful files to help with this: two non-identical savestates (for the Windows 64-bit build of PPSSPP v1.5.4) which yield the same enemy placement if the confirm button is buffered when loading state.
I tried seeing if I could use Cheat Engine to see what values are identical between the two savestates (with a few subsequent searches to remove values that remain the same regardless of the frame) but I still end up with thousands of values to sift through. (I'd start my search at the start of the default load address and would have a search space of ~0x1000000000 iirc.)

I've also tried noodling around using Cheat Engine to see if I could find the memory that contains PPSSPP's RNG algorithms (so I could see what calls it/whether reverting the values will yield the same enemy placements). I see on the github repo (@ /hrydgard/ppsspp/blob/master/ext/native/util/random/rng.h) that there are two potential algorithms. I couldn't find the incrementing counter or the "magic numbers" for the Mersenne Twister implementation, and though I could find potential locations for the RNG seeds (1337 and 31337) for GMRng(), I couldn't seem to locate the actual R32() function which spits out the random numbers. (I've tried searching for a "shr *,16" or "shl *,15", but it would take a seemingly interminable amount of time on my laptop and I guess could also not exist depending on how the compiler performed its optimizations.)

I may be just going about this the wrong way. Anyone have a better idea on how to approach this? Maybe I should just clone the repo, stick some breakpoints in the rng.h file, build, and monitor/modify the values that way? Only reason why I haven't tried that yet is I remember having a lot of trouble attempting to build off the repo before.
EDIT: Have since tried this -- in-game, the emulator seems to only call GMRng() on the initial loadstate and on no frame afterward. So I guess my lack of PSP/PPSSPP knowledge is showing. Is the in-game RNG not handled by the emulator? Perhaps in a different function?


tl;dr: What would be the best way to use PPSSPP to dissect a game's RNG?

I have recently encountered this problem that had never occur before. While playing Djmax clazziquai and portable 3, the sound felt like it's missing some sound/channel, the lower bass are mostly gone. I Google it and see that on psp the game have like a mono sound output for PSP e1000. Why did my emu certainly have this problem ?I didn't have this problem before and even after switching to different version and change the psp version problem still exist?? This is only for DJMAX games, no other games have this proble.. another person on gamefaq have this similar problem and I think we share the same problem Is there a way to trick the game to switch back to stereo ??

So I found more about this problem, according to the gamefaq link in question the game have 2 audio track One audio track is quieter than the other Not sure why it become a thing after many years of playing just fine??

Does anyone know why, in games like silent hill origin, the letters of the subtitles are shown so large? Is there any solution?

ppsspp 1.5.4
I can start game but it does not deal，so it is not playable...
Is it a bug？or something wrong with my ISO？
NPEH00020 UNO [PSP]

Hello I recently play FF type-0 and when I reached chapter 6 it stucked not at the beginning but when I defeat the guys on the bridge when I move forward party organization come and it stuck there is a video in YouTube and there was a save point but it does not appear for me plz help me _(sry if my English is horrible)

I'm playing LBP, and after a scuffle about the game running at around 500% the right speed and figuring out I was just holding down a button that made it do that on accident, I now run the game at the proper 100% speed. Unfortunately, that means 30 fps, along with some stutter for no reason (even though the fps remains the same??). I was just wondering if there's a way to raise the fps and keep the speed at 100%.
Thank you for the reply in advance.

So I've been trying to use this command line to get my desired PPSSPP games to launch directly from Steam.

"I:\Games\PPSSPP\PPSSPPWindows64.exe" "I:\Games\PPSSPP\Iso\Final Fantasy I.iso" --fullscreen

This is what i usually use for other emulators and it works but for PPSSPP the emulator opens and gives a "PPSSPP has stopped working" error.

Could i be doing something wrong? is there a different command line?

does the releases today is major?

Can you use keyboard with MGS Peace Walker? If so how?