Claude (auto-RE)
eac3435cc7
Those three fields all hold 2, and "difficulty or stage, undecidable from one save" has been the reading since the format was parsed. Writing saves makes it decidable and the answer is neither. boot_menu.sh boots to the title menu WITHOUT loading anything, and LOAD GAME's slot list renders each slot's Details panel from that slot's payload. Extra slots can be fabricated (copy the directory plus a gameNN.header with its UTF-16BE display string and ASCII name patched), so four probes fit in one boot, read-only. Probed: +36 at 1/3/9, +52 and +56 at 1/9, and +0, +16, +32, +48, +28, SHAB[0].a. Every one left the panel at STAGE 02 / EASY / At Standby / Times Cleared 0. The negative is meaningful because the panel does read each payload -- slot 02 shows 5% clear ratio against the others' 6%, and Points tracked +24 exactly. Two controls: patching a slot header to "STAGE09 HARD" changed nothing (the display is payload-driven, not header text), and the row date follows the container FILETIME. Remaining candidates: +12, +20, +40 (u64), +60, +64, or the phase string. Also here: savegame_edit.py --slot for SHAB records, and boot_menu.sh itself -- nav_probe.sh's boot loads a save, which with probe slots on disc loads a probe, and a dropped d-pad step there put A on TAKE OFF and spent a boot loading a mission. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Runtime-capture harness (sylph-re container)
Screenshot-driven scripts for reading the running retail game's menus under Xenia
Canary + lavapipe, headless. They assume the container helpers screenshot,
vgamepad, pad are on $PATH and HOME=/sylph-home/re.
| Script | What it does |
|---|---|
skip_intro.sh |
Boot → main menu, unattended. Taps A only while the intro movie is actually playing (frame-to-frame RMSE), then once at the PRESS Ⓐ BUTTON title. Static logo screens are left alone, so a stray tap can never land on NEW GAME. |
wait_title.sh |
Older variant: wait for the title (green Ⓐ glyph at px 625,618) and tap A. Superseded by skip_intro.sh. |
step.sh |
One Arsenal navigation step (down/up/next/prev/none) + a compact capture: weapon list stacked over the DATA SHEET. |
sweep.sh |
Walk a whole weapon-type list, capturing only rows that show a DATA SHEET — locked rows (a "Conditions to Develop" panel) are detected by the brightness of the Range Class label box and skipped. |
type.sh |
Change weapon-type tab N times (RB) and report the header strip. |
hp.sh / cyc.sh |
Hangar hard-point carousel: cyc.sh steps it (d-pad down, not left/right) and captures the Name + DATA SHEET. |
Input timing under lavapipe: the game polls input at its own low frame rate, so a 60 ms d-pad tap is dropped roughly half the time. 200 ms is reliable; 300 ms starts to auto-repeat (two rows per press).
Findings produced with these: docs/re/weapon-datasheet-runtime.md.
Guest-memory tools (no screenshots)
| Script | What it does |
|---|---|
gmem.py |
Read the live guest address space out of /dev/shm/xenia_memory_* (Xenia's backing file), addressed by guest VA. find / read / words. |
weapon_runtime.py |
Solve the Weapon/Shell struct layouts against the disc records and read the fields the disc defaults. |
unit_discover.py |
Find which runtime class carries a set of ID strings, assuming no vtable: tallies the word at pointer_site - k across distinct IDs. |
unit_runtime.py |
Same solver for the unit\UN_*.tbl definition objects (vtable 0x820af844). Unions several snapshots — unit definitions are per-stage. |
schema_order.py |
Merge a sub-record's field-declaration order across all tables (topological sort); the layout check that pins fields no table ever values. |
order_check.py |
Test offset = base + 4*index for one table's sub-record against solver output. |
grab_tutorial.sh |
Cold-boot Canary, walk to the Nth TUTORIAL entry, wait for the stage load, snapshot guest RAM. One emulator per capture — backing out of a loaded mission wedges it. |
Snapshot first — cp --sparse=always /dev/shm/xenia_memory_* snap.bin (~2 s) — and
point $GMEM_FILE at the copy; the running emulator pegs every core under lavapipe.