Claude (auto-RE)
6c7025851e
Measured pitch with the rows properly pinned, against this craft's own disc caps
(AV_PitchPlus_Min 150, AV_PitchPlus_Max 70):
min speed (LT) 1391.0 deg / 8.00 s, clock x1.326 -> 131.1 deg/game-s vs 150
max speed (RT) 989.0 deg / 8.05 s, clock x1.318 -> 93.2 deg/game-s vs 70
A rate 33% ABOVE a cap is not a finding, it is a broken instrument. The HUD speed
is in the same bracketing screenshots that give the clock, so read it:
slow phase 102 -> 18
fast phase 1193 -> 589
The speed is NOT constant during the dwell -- pitching halves it in 8 seconds.
The cap is speed-dependent, so as the craft slowed its cap rose, and an 8-second
average necessarily lands between the max-speed cap and a mid-speed one. The 133%
is entirely the instrument.
This also weakens the roll result committed earlier: same method, so 120.9 vs
AV_Roll_Max 125 is CONSISTENT but is not a tight test -- the true cap could be
lower and still produce that average. Said plainly in the doc rather than left
standing as a clean confirmation. Min-speed figures are less affected; there is
little speed left to lose.
Proper fix, not yet done: dwell ~1-2 s so speed barely moves, or sample HUD speed
continuously and fit rate against INSTANTANEOUS speed -- which yields the whole
rate-vs-speed curve instead of two points.
Separately this is a flight-model finding: TURNING COSTS SPEED, steeply, with the
throttle still at maximum. A reimplementation treating the throttle as a speed the
craft simply holds will be wrong during manoeuvres.
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Older variant: wait for the title (green Ⓐ glyph at px 625,618) and tap A. Superseded by skip_intro.sh.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.