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>
The old src/ppc.rs that re-implemented PPC formatting collapses into
a 30-line shim that delegates to xenia-cpu's single-source-of-truth
disasm. A new disasm.rs wraps the shared iterator and feeds enriched
items (analysis context: function membership, xrefs, mnemonics) into
pluggable sinks.
Sinks split: text.rs (objdump-like output), json.rs (JSONL stream
matching the new xenia dis --json mode), duckdb.rs (the analysis DB
ingest). db.rs is restructured into ingest_instructions +
write_analysis_results so a run can stop after raw ingest, and a new
target_hex column lands on the instructions table. sql_views.rs adds
five additive views layered on top of the raw tables.
Tests: assert-based JSON-fixture goldens (disasm_goldens) and a
PRAGMA-table_info schema golden (db_schema_golden) covering all
ingested tables and the SQL views.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Split the monolithic interpreter into cohesive modules: dedicated
decoder (decoder.rs) producing 8-byte DecodedInstr; opcode tables
(opcode.rs); explicit traps (trap.rs); FPSCR helpers (fpscr.rs);
overflow/carry helpers (overflow.rs); a 4 KiB-page-versioned decode
cache and basic-block cache (block_cache.rs); and a full VMX/VMX128
implementation (vmx.rs) covering AltiVec + Xenon's 128-bit extensions.
Add the parallel-execution substrate behind --parallel: a 7-party
phaser (phaser.rs) for round-based barrier sync, ReservationTable
(reservation.rs) for guest LL/SC, and the per-HW-thread scheduler
core (scheduler.rs) that owns ThreadRefs, runqueues, and pending IRQs.
Disassembler is now the single source of truth: disasm.rs gains the
full base + extended + VMX128 mnemonic set, with golden JSON fixtures
and a disasm_goldens test suite. Add a criterion-style interpreter
bench. context.rs grows the per-thread state the new modules need
(reservation slot, FPSCR, vector regs).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Re-shape MemoryAccess so write methods take &self and rely on interior
mutability (atomics in GuestMemory, Cell in test mocks). This unblocks
the &Arc<KernelState>-only execution model the CPU/HLE crates moved to.
GuestMemory grows: per-4 KiB-page write-version counter (page_version)
that the CPU's decode cache and the texture cache observe via Acquire,
fenced 32-bit/64-bit read/write helpers (Release on writer / Acquire on
reader) that PM4_EVENT_WRITE_SHD and the matching CPU consumers use to
synchronize fence publication, and broader page-table / heap accounting
needed by the new HLE allocators.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Workspace gains a new xenia-ui member that owns the winit/wgpu
window, the Xenos display pipeline (xenos_pipeline + render +
texture_cache_host), HUD font/blit shaders, and the input-bridge
plumbing the app uses to surface guest framebuffers and overlays.
Workspace dependencies grow accordingly: rusqlite is replaced with
duckdb (analysis pipeline now writes DuckDB stores), and tracing /
metrics / pprof / winit / wgpu / gilrs / pollster / crossbeam /
bytemuck are added at workspace level so xenia-ui and xenia-app
share versions. Cargo.lock regenerated.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
audit-out/ and audit-*.md are local report artifacts produced by the
PPCBUG audit pipeline; *.stdout/*.stderr/*.log are stress-harness run
captures. Switch /target/ to target/ so per-crate target dirs (e.g.
crates/xenia-app/target/ used as a stress-output sink) are also ignored.
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>
