DiscImageDevice now walks the GDFX tree at open() and caches every
file/dir entry by full relative path; the previous root-only scan
returned ENOENT for any path under a subdirectory (dat/tables.pak,
media/x.wav). Lookups become O(n) over the cached vec.
xex::load_image gains a tracing span plus per-load metrics
(xex.load_image_ms histogram, xex.bytes_{in,out} counters) so the
observability subscriber the app installs can see decompression cost.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Rust reimplementation of the xenia Xbox 360 emulator targeting reverse-
engineering and preservation, initially scoped to Project Sylpheed.
Includes:
- XEX2 loader (LZX decompression, AES decryption, PE parsing)
- XISO / XGD2 disc image VFS
- PPC interpreter with 200+ opcodes and VMX128 decoding
- Static analyzer: functions, cross-references, labels, asm + SQLite output
- HLE kernel covering the xboxkrnl/xam subset used by Sylpheed init
- Debugger with in-memory and SQLite-backed execution tracing
- `xenia-rs` CLI with extract/dis/exec commands that produce cumulative,
superset SQLite databases and opt-in instruction/import/branch traces
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
