Recompiled Demon's Souls (PS3) into a native Windows port with Claude

The project creates a native Windows executable for Demon's Souls (PS3, USA, BLUS-30443) by statically recompiling the game's PowerPC and SPU code into C/C++ using the ps3recomp toolchain. The resulting program runs as a native x64 application rather than through emulation. The build process requires a user-provided disc image, which is decrypted using RPCS3 to obtain the EBOOT.elf. The port includes a custom runtime, a Direct3D 12 renderer, and various patches to handle frame pacing, audio streaming, and vector float math optimizations. The author reports that the entire game is playable, with support for uncapped frame rates up to 240 fps and keyboard or controller input. Performance monitoring tools are integrated to record frame timing and assist in debugging stutters or crashes. Development commits credit Claude Opus 5.5 as a co-author for contributions including renderer optimizations, audio streaming fixes, and the implementation of stutter recording and teleportation features. The project documentation is available at https://raw.githubusercontent.com/timboat/demons-souls-recomp/HEAD/README.md.