Emulation Homebrew PS1/2 Emulator ARMSX2-NX Initial Release

Sluggerx · 2026-07-09T18:05:51+0100

Valkyrie profile silmeria test on armsx2 2.0.0

API vulkan
2x resolution
Cpu 1785mhz
Gpu 921.6.mhz
Mem 1600.0 mhz

DarkKRPG · 2026-07-10T02:58:49+0100

PalindromicBreadLoaf said:
I doubt it. Nothing on the CPU side was changed. I am working on ARMSX2-refresh currently, which has a bunch of CPU improvements, so that may get it booting. Overclock was 2091/921/1700.

I see, hopefully ARMSX2-refresh allows Klonoa to boot, and for P4 to not require such a big overclock

kohntarkosz · 2026-07-10T13:56:32+0100

I successfully ran the siren in original resolution using 60% emulated clock and max oc. the framerate was stable enough, around 25 (the cap afaik) with occasional drops to ~15. Cutscenes are a big problem though because it seems like they have more fps than the game, or maybe there is a bug/an inefficiency in the IPU implementation (?). They are noticeably laggy and have stretching sound. Otherwise the game is almost playable, maybe with a couple of optimizations it will be ideal.>

PalindromicBreadLoaf said:
fastmem doesn't work on Switch and never will

Hello, I want to thank you for your work! I think switch's hardware is more powerful than many people think and ps2 emulation isn't impossible on switch (pcsx2 running on linux kinda proves it). I'm not sure why you say that fastmem can't be implemented on switch. I'm no switch dev, but I researched the question a little and it seems like horizon allows for some kind of memory mappings (?) and system exception handlers, which would be enough to have at least some sort of fastmem (which would be very beneficial as software address translation is very slow). I'd like to help you where I can, even if I know little about pcsx2 codebase.

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