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PSP game updates were distributed as NPDRM .pkg files holding a patched EBOOT (PBOOT.PBP) plus the data files the patch replaces. PkgUnpack reads one: header, item table, both PARAM.SFOs, and the AES-128-CTR that covers everything past the header - including the per-item key split, where an item's pspType byte picks between the PSP and PS3 keys. Nothing new is needed to decrypt these. All packages checked use PRX tag 0x2E5E10F0 for their PBOOT, which PrxDecrypter already has a key for. Also adds "PPSSPPHeadless --install-pkg=DIR", a sibling of --unpack-updater, which installs without any UI. All packages install through it byte -identically to a reference implementation. Format notes are in docs/pkg_notes.md. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
================================================================ NOTE: These are legacy instructions for building using ndk-build. We mostly only use this on CI because it's faster than gradle. There might also be some holdouts around still using eclipse. ================================================================ First, build the C++ static library: > cd android > ./ab.sh Or > ./ab.cmd as appropriate. Start Eclipse, import the android directory as an existing project You need to also load the "native" project into your eclipse workspace Build and run. If you modify the C++ code, you need to rebuild the static library, of course. To get Eclipse to understand that you have in fact changed something if you haven't also changed any Java code, just add a space character to PPSSPPActivity.java, or right click the project and choose Refresh, and then relaunch the app on the device. A real Android device is strongly recommended for testing. Don't trust the emulator.