jpolo1224 d6235c5802 Remove the PS2 leftovers a PS3 emulator was still carrying
The memory-card and PNACH patch screens were PS2 concepts with no PS3 counterpart
and no caller left -- the drawer had already been cleaned, so they were dead code
holding dead strings. The PNACH downloader went with its only consumer, and the
PCSX2-Android.ini seed could never exist under this package. The session log now
announces ARMSX3_INIT instead of PCSX2_INIT, which had every bug report opening
with the name of a different emulator.

The English map drops 46 PS2 strings and 619 orphans nothing references (1705 ->
1041 keys), rewords the four live strings that still said memory card, and renames
about.pcsx2.* to about.rpcs3.* to match what they already said.
2026-08-10 18:36:17 -04:00
2026-07-31 18:41:29 +02:00
2026-06-14 16:05:41 +02:00
2024-12-28 19:58:59 +01:00
2026-01-24 09:37:47 +01:00
2024-11-16 15:10:20 +01:00
2025-11-02 14:22:11 +02:00
2026-08-06 09:08:18 -04:00
2026-06-21 16:37:09 +02:00

ARMSX3

Proof of concept Android port of RPCS3.

Uses the latest RPCS3 upstream code (the recent ARM64 improvements included).

Status

From my testing, I only tried Skate 3. It boots, loads and reaches gameplay at roughly 20 to 30 fps on a Snapdragon 8 Gen 2. Rendering, audio, touch controls and physical controllers work. Almost nothing else has been tested. So the main stop gap at the moment is performance/speed.

Differences from upstream RPCS3

Some of the fixes here are not in upstream and affect any ARM64 build, not only Android:

  • Shaders declared runtime sized arrays inside uniform blocks, which requires VK_EXT_shader_uniform_buffer_unsized_array. Adreno does not support that extension, so every game pipeline failed to compile and nothing rendered. Concrete array bounds are emitted when the extension is missing.

  • The ARM64 SPU block verification checksum folded two thirds of every block through an absolute difference. That collides on the near identical job binaries an SPU job manager streams through the same local store address, so a cached block could end up running against another job's code. It sums now.

  • Thread affinity was compiled out on Android, and the core had no ARM big.LITTLE topology, so SPU and RSX threads were never placed on the fast cores.

  • The LLVM JIT target was pinned to cortex-a34, an in order core from 2016. It detects the host now.

Building

Only arm64-v8a is supported. You need the Android SDK with NDK r27 or newer, CMake 3.30 or newer, and a JDK 17. Android Studio ships all of these.

Clone with submodules, then fetch the two third party checkouts that are not submodules:

git clone --recursive https://github.com/ARMSX2/ARMSX3.git
cd ARMSX3
git clone https://github.com/SnowflakePowered/librashader 3rdparty/librashader
git clone https://github.com/bylaws/libadrenotools android/armsx3-ui/app/src/main/cpp/libadrenotools

Build the core. This is the long part and produces an unstripped library of around 1.3 GB:

export ANDROID_HOME=$HOME/Library/Android/sdk
cmake -B build-android -G Ninja \
  -DCMAKE_TOOLCHAIN_FILE=$ANDROID_HOME/ndk/<version>/build/cmake/android.toolchain.cmake \
  -DANDROID_ABI=arm64-v8a -DANDROID_PLATFORM=android-31 \
  -DCMAKE_BUILD_TYPE=RelWithDebInfo
cmake --build build-android --target rpcsx-android -j8

Strip it and put it where the app expects it:

llvm-strip --strip-unneeded build-android/android/libarmsx3-core.so
cp build-android/android/libarmsx3-core.so \
   android/armsx3-ui/app/src/main/jniLibs/arm64-v8a/

Then build the app:

cd android/armsx3-ui
export JAVA_HOME="/Applications/Android Studio.app/Contents/jbr/Contents/Home"
./gradlew :app:assembleRelease

The apk lands in app/build/outputs/apk/release/.

Note that the core library has to be rebuilt and copied again whenever anything under rpcs3/ or android/src/ changes. Gradle does not build it for you.

The Discord Social SDK is proprietary and is not redistributed here. Get it from Discord's developer portal and drop it in app/libs/ and app/src/main/cpp/discord_sdk/ if you want that feature. The build skips it otherwise.

Running it needs PS3 firmware, which is not included. License

GPL-2.0-only, the same as RPCS3. See LICENSE. Some files may be licensed differently, check the file headers.

Based on RPCS3, https://github.com/RPCS3/rpcs3

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