Cannot set PSP Model on RetroArch, Toukiden does not work properly~！

[xiejinglan]

Game or games this happens in

ULJM06290 - Toukiden

What area of the game / PPSSPP

What should happen

Hope to be able to set PSP Model

Logs

No response

Platform

libretro / Retroarch

Mobile phone model or graphics card

Pixel 4a

PPSSPP version affected

RetroArch 1.9

Last working version

No response

Graphics backend (3D API)

OpenGL / GLES

Checklist

• Test in the latest git build in case it's already fixed.
• Search for other reports of the same issue.
• Try resetting settings or older versions and include if the issue is related.
• Try without any cheats and without loading any save states.
• Include logs or screenshots of issue.

[iota97]

I wonder if we should just default to PSP-2000 rather than adding another option.

Not sure if this game is going to work anyway, for reference the message is "Ad hoc play on PSP-1000 not available." (OCR + Google translate).

[Panderner]

It's looks like they forgot to add PSP Model selection for RetroArch core.

[xiejinglan]

@iota97
I tried setting g_Config.iPSPModel=PSP_MODEL_SLIM in retro_init and recompiling it, but it doesn't seem to have any effect, the error message still exists, so I wonder if there is something else that affects this field instead of just changing this field worth it

[iota97]

AFAIK that should be it. However if you load a savestate it will reset the PSP model (if I'm not mistaken) so be sure to restart the game and load a game save for testing.

Would be nice to know if it work on standalone version too.

[unknownbrackets]

g_Config.iPSPModel is processed whenever the CPU is initialized, and can't be changed while emulation is running. Retroarch isn't really built for emulators as optimized as PPSSPP (it's built for things like the SNES, which is 1% as powerful as the PSP), and runs into lots of conflicts and performance issues. It might be that timing of updating that value is one of them.

-[Unknown]

[iota97]

If that the case I think he could test changing it from here:

ppsspp/Core/System.cpp

Line 232 in aeb81c3

Memory::g_PSPModel = g_Config.iPSPModel;

Why does a game check for PSP model for AdHoc anyway? I thought there weren't many difference beside the UMD cache.

[unknownbrackets]

Somewhere I've read that the PSP-1000 chipset had issues running the wifi chip while the CPU was clocked at 333 Mhz. Might've been a voltage issue.

-[Unknown]

[xiejinglan]

I've tested setting g_Config.iPSPModel= PSP_MODEL_SLIM in CPU_Init; but still nothing changes.

[a7150607]

@unknownbrackets has nay way to fix it?

[xiejinglan]

It's my own problem, set in the wrong place！