1ba5d0a4a3
All re-read twice — the handler, and the thing it calls — because each had been named from its shape rather than its effect. * id 11 `yield` -> `end_coroutine`. 0x82272624 is li r11,1 ; li r3,3 ; stw r11,164(r31), and the dispatcher's r3==3 arm erases the thread from the active list and returns it to the free list. It destroys the thread. 2945 sites game-wide, 372 in Stage 02 — the most-used built-in there was. * id 5 `await_label` -> `kill_coroutine(label)`. sub_82273B08 kills the thread parked at the target pc, or itself if the target is its own pc. It waits for nothing. * id 100 `push_trigger` -> `reset_phase_threads`. It clears the trigger container and then frees every thread whose pc differs from the caller's — the opposite of pushing a trigger. Corroborated by usage: its 12 Stage 02 sites all sit in the phase terminator, next to timer_stop, clear_flag(-1) and MARK_LAST_PHASE. One name recovered from the game's own text: opcode 992 prints "RequestScriptMessage %s" at 0x820A5700, so id 64 is request_script_message (2683 sites). Return codes documented properly: 1 = restart the coroutine from its entry (previously not recorded at all), 3 = terminate. And the blocking set was wrong in two places — it is 102, 120, 137, 142, 143. Id 97 does NOT block; its handler ends `b 0x822724F8`, so it always returns 0. Unit-operand resolution settled from DATA over all 28 stages rather than by reading 147 handlers: a slot qualifies only if every value is a valid symtab-2 index, it takes >=15 distinct values, AND its maximum reaches most of the table — that last clause is what discriminates, since every small integer is trivially "in range". 31 built-ins at slot 4, 8 at slot 12, one at slot 20. It also refutes set_flag's slot 0, whose maximum overruns the table, and the resolver now declines rather than inventing a name. New and unexplained: symtab-2 holds two types, 2 and 8, and built-ins 95 and 128 take type 8 at slot 12 in 100% of their sites. A downstream inference is withdrawn with it: the note reading the live trigger counter attributed it to "the script arming watches as it goes" via built-in 100. The measurement stands; the attribution does not. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01PMRJjbxLqZtsb5Vb7KunPE
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.
🔴 pgrep -f / pkill -f match YOUR OWN shell
An agent driving this toolkit runs its commands through a wrapper shell whose command line contains the pattern being searched for. So
pgrep -f 'pilot\.py' # matches the wrapper running this very command
pkill -f 'fly_session|pilot\.py' # kills that wrapper — the script dies mid-way
This has cost four separate mistakes in one session: two scripts killed
mid-execution, and twice a "is it already running?" guard that answered yes
because it had found itself. The [p]ilot bracket trick does not help when
the literal invocation (python3 pilot.py …) also appears on the wrapper's
command line.
What works:
pgrep -x xenia_canary # exact NAME match, no -f
ps -eo pid,args | grep 'python3 pilot.py' | grep -v snapshot-bash
kill -9 <explicit pid> # look it up first, then kill by pid
The snapshot-bash filter is the reliable tell: the wrapper's command line
always contains the shell-snapshot path.
🔴 The emulator does not survive the end of an agent turn
/work/.claude/settings.json defines a Stop hook that kill -9s every
xenia_canary when a turn ends, printing "Stop hook killed N stale xenia
process(es)".
So:
- never launch a run intending to read it in a later turn — it will be dead;
- an experiment has to produce its evidence within the turn that starts it;
- prefer measurements that land in the first minutes of flight.
REMAINING OBsteps4 → 8 → 12inside the first few minutes, which is why a two-pass differential works in one turn while a 25-minute freeze watch does not.
This cost three iterations of investigating a "mysterious external SIGKILL", complete with cgroup and host memory forensics, before the hook was found. When a process dies at a session boundary, check the harness first.