ruled out
Last iteration I recorded eff3's absence as unexplained after withdrawing a bad
explanation for it. The previous capture survived on disk with 6907 frames, and
the attract loop returns to the title, so it contains a SECOND build-in at
frames 5942..7025. eff3 is absent there too.
Three alternative explanations tested and failed:
* sampling phase -- eff3 is non-zero for t in (58,64), SIX units, against a
2.23-unit step. A window wider than the step cannot be missed; frames 133
(t=60.1) and 134 (t=62.3) sit inside it and draw eff2 and eff4 instead.
* a draw the log cannot see -- exactly 2 draws per frame carry no geometry,
on all 932 settled title frames, always the same full-screen-triangle
shader, and present on frames where no wipe element is active.
* a bad position guess -- dropping position entirely, ZERO quads anywhere on
screen in either build-in window have a width within +-30 of 408. The width
spectrum jumps straight from 262 to 748.
Draw counts across both entries: eff1 4, eff2 3, eff3 0, eff4 6, against ~5
expected each. The four are a right-aligned wipe (938+258, 788+408, 447+749,
64+1133, all ending at x~1196) -- a left-growing reveal in four widths, of
which the game draws three.
Why is NOT established: nothing in eff3's element record differs from its
neighbours. Classified measured, not decoded, and the port is told that
dropping eff3 means authoring a behaviour I cannot derive from the file.
Two further corrections, both to my own earlier claims:
* "frame 107 is the title composited once" was an over-read. It binds NO
texture and only 4 of its 27 draws log geometry. The second title entry
has no such frame.
* the two build-ins are NOT frame-identical. I had that from a coincidentally
aligned pair of rows; aligned properly only 4 of 46 frames match. They are
the same animation at different sampling phases -- which is precisely what
makes the eff3 result robust.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
test that refutes 105
Two claims shipped this morning are withdrawn, and the port had already acted
on one of them.
WITHDRAWN 1: "eff3 was never drawn because a 2-unit flash peak is sub-frame."
eff3's alpha is non-zero for t in (58,64), and the capture's frames 133 and 134
sit at t = 60.0 and 62.2 -- squarely inside that window, with eff2 and eff4
both drawn in the same frames. It should have been submitted and was not. The
absence is real and UNEXPLAINED; it is not sampling phase.
WITHDRAWN 2: "a port drawing all five flashes shows more sweep than the
console". No evidence behind it. The port checked against its own renderer and
found it draws them sequentially at their declared times, never more than two
at once -- which is exactly what frames 131-135 show the game doing. The
pile-up worth warning about was the rest() bug, now fixed.
Kept, at the port's request: a frame-by-frame comparison of the build-in WILL
disagree about which flash lands in which frame -- 2 units per submitted frame
against this run's 2.231 units per presented frame -- and neither side is
wrong. Without that stated, the discrepancy reads as a port defect.
Added, and stronger than the argument it replaces: a calibration-free test of
105 vs 120. The glow's draw is omitted when its alpha reaches zero, and the
smallest alpha actually submitted across 807 drawn frames is 1, so the culling
threshold is read off the data rather than assumed. Measured dark fraction
17.7% (173 of 980 settled frames); a 120-unit cycle with its declared 15-unit
hold predicts 14.4%; a 105-unit cycle predicts 2.2%. 105 is out by 8x and
would need a threshold of alpha 11 out of a peak of 80, while the capture
contains submitted draws at alpha 1..12. No frame rate, no pacing factor, no
wall clock.
Also recorded: a regression of five build-in events against their declared
times (residuals <=0.9 frames) recovers t=0 at frame 106.1 when the composite
spike, not in the fit, is frame 107 -- and that same slope makes the glow's
period imply a 114-unit cycle against a declared 120, which is unexplained.
And the vertex-alpha identity holds for the glow but does NOT generalise:
eff4 reads 255/127/254 on consecutive frames.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
The settle-time decode was confirmed only against a SETTLED frame, which shows
the end state is right and says nothing about whether the five flashes ever
happen. This runs the oracle: a draw capture armed before the title exists,
so the window contains the frames in which the screen is built.
The flashes fire in a six-frame window and are absent from all 155 other
sampled frames. `ptlogo_back2eff1` is drawn in exactly two frames at t = 54.0
against a decoded peak of t54-56; `ptlogo1` first appears at t = 42.2 against
a decoded t42. Units-per-frame was taken from the GLOW's period alone, a
different element, so the timings are not circular. The two holders are
continuous from frame 134.
The plate glow's quad carries a per-vertex colour whose alpha IS the element's
fade alpha, so the ramp is read straight out of the guest: observed range
0..80 against a decoded peak of 80, exact and unfitted; period 51.158
presented frames over 20 cycle starts. Fitting the decoded ramp gives RMS
13.16 alpha levels against 38.18 for the same ramp REVERSED -- if the shape
carried no information those would be equal, so the asymmetry is real and
correctly directed. Further controls: symmetric triangle 15.73, flat 31.13.
`ptlogo_back2eff3` was never drawn, and that is expected rather than a miss: a
2-unit flash peak is 0.85 of a presented frame, so catching one is a matter of
phase. A port drawing all five every time shows more sweep than the console.
METHOD.md gains the trap this cost: a 2D draw's identity is its vertex
geometry, not its bound texture. These sprites sample shared pages, and
matching texture dimensions produced a false negative (no flash is ever drawn)
and a false positive (the intro movie's 640x360 YUV planes read as `ptbase2`)
in the same pass.
Also records the top-level restriction on the settle window, which the port
raised and which is verified here: top-level [160,236] width 76, including the
`ptloop` leaves [269,540] width 271 -- an instant past the end of every
top-level element's timeline.
Evidence committed as a derived per-frame series, not the 7 MB raw log.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
Answers the question the port agent asked: does the `PRESS A` plate's pulse
group loop from its start, or hold at alpha 0 between cycles? It holds.
A nested record is itself a RATC bundle with its own header, and that header's
`+0x08` is the loop length -- the same field ui_header_time_disc already tests
as an animation length at the top level. Its keyframes need not fill it, and
the slack is a hold at the final pose. `ptbtn00f` is 105 units of ramp inside
a 120-unit cycle, so the glow rests dark for 15 units between pulses. The five
main-menu focus records fill their 120 exactly, which is what shows the slack
belongs to this record rather than to the format.
Disc-wide over 1 781 timed nested records: 92.3% declare exactly their last
keyframe time, 7.7% declare more, and 0 declare less. That last row is the
falsifier -- a cycle cannot restart before its own last pose -- and it never
fires; the 7.7% is what keeps the reading from being an unfalsifiable
relabelling of the keyframes.
Falsification against the running game, using a pacing factor measured
INDEPENDENTLY on the main menu's focus ring (declared 120 units, measured
2.177 s, factor 1.0885): to reach the corpus's four measurements of the plate
pulse (2.12/2.19/2.34/2.31 s), a 105-unit period needs a factor of 1.211-1.337,
which EXCLUDES the ring's; a 120-unit period needs 1.060-1.170, which CONTAINS
it. Predicted 2.177 s against a measured 2.12-2.34. The two elements are in
different bundles and were measured in separate runs; the only thing tying
them together is that both declare 120.
So the port should stop shipping 105. Its 123-vs-129 ambiguity straddled the
right answer without containing it, and 129 only fitted because it was
105 + the exit_ramp_units constant it has since correctly deleted.
Reach is stated: this says where a cycle ends, not which records cycle, and
the TOP-level +0x08 is a different field left untouched -- every GP_TITLE
entry declares 300 while its elements end at 244-269.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
Closes the open half of Q3. `ui-paint-order-derived-check.md` bounded WHERE a
wrong tie-break could show -- overlapping same-key pairs -- and said outright
that nobody had measured how many change a pixel.
At the instant the player sees, the answer is: at most 1 px at max channel
difference 1, on the JAPANESE title only (`ptlogo2` x `ptlogo_tm`, 5 px of
shared ink). Exactly 0 px on all five port screens.
The earlier 24-pair bound was counted at `rest()`, and 10 of the title's 11
overlapping tied pairs are between `ptlogo_back2eff1`..`eff5` -- the five
transient flashes from the settle-time finding, transparent on the settled
screen. A tie between two invisible elements cannot cost a pixel.
Not a knife-edge. Sweeping every keyframe time and every midpoint between
keyframe times, the live-pair count is flat across the ENTIRE settle window:
1 on the EN title, 2 on the JP title, 0 on all four loading bundles -- whose
tie is live only at t17..t33, during the build-in, which matters because
their settle windows are narrow enough to deserve little trust otherwise.
Controls: every entry reporting zero also swaps an overlapping DIFFERENT-key
pair, which must and does move pixels (25 310 / 268 698 / ~765 000 px). Zeros
are explained by shared-ink counts rather than asserted -- the `ptframe` pairs
overlap by bounding box and share 0 px of ink. Entries 0/1/12/15 have NO live
control and their zeros rest on keyframe data rather than a render; recorded
as the weaker claim it is.
Refutation attempt on the corpus's "24 overlapping pairs": it SURVIVES as a
rest-pose count -- an independent recount reproduces entry 7's 16 exactly.
What is overturned is its interpretation as the risk surface.
`tie_break_pixel_cost` gains a settle-time case and an alpha/scale filter on
its rect test; `tie_cost_over_time` is new. Also strips 611 bytes of captured
cargo warnings from the head of the committed tie census.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
Records the settle-time decode, and corrects two claims it overturns.
docs/re/structures/ui-settle-time.md is the finding: a settled screen is one
instant every element is posed at, the disc names it (the midpoint of the
longest keyframe-free interval), and the title's arc closes from 33.22 to
11.79 with the clipped-pixel count landing on the console's 1459 within 0.5%.
Includes the disc-wide reach -- only 30% of bundles have a window wide enough
to trust -- and a three-way figure.
Withdrawn in ui-rotation-implemented.md:
* "Flat. No minimum." was not a property of rotation. `at` posed LEAVES ONLY,
so the scan moved the light sweeps and never touched the top-level flashes.
* "our renderer does not draw ptlogo1/ptlogo2 at all" is wrong. Both are
drawn; the four elements the diagnostic named are kind-0x4 ghosts sharing
their template's name. Hiding the real ones makes the error WORSE by
+5.20 and +7.47.
* Its 10.92 baseline is not reproducible -- 14.07 at its own pre-change tag
and 14.07 today -- so the "1.7% better" verdict rests on an unrecorded
recipe. Flagged in title-residual-tone-vs-geometry.md too.
METHOD.md gains two traps: a shared CARGO_TARGET_DIR makes a `git worktree`
build silently replace the binary you run next (it cost three renders here,
caught only because a missing flag was a hard error rather than a wrong
number); and an aggregate computed per-element is not a state of the system.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
Found by inspection while the disc tests ran. The leaf branch set its
something-was-drawn flag unconditionally after calling blit, but blit returns
early on a zero scale -- collapsed to nothing, not unset. So a scale-0 leaf would
have been counted as drawn, its parent skipped, and the element blanked outright.
pgloading_loop5 s leaf is scale (0,0), so this was live on all four loading
screens, and scale-0 is one of the failures this corpus is already named for.
Fixed by skipping a zero-scale leaf pose before it can claim the draw; the
loading builds render afterwards at 4.0 percent non-black.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
The rotation decision needs a size, not just a direction. A per-level LUT fitted
on a screen is the most general tone model possible, so whatever it cannot close
is by construction spatial. Self-fitted, it closes 70.3 percent on the main menu
-- the positive control, where the port measures 0.06 percent so geometry is
right -- and only 32.0 percent on the title. At most a third of the title s
disagreement is tone; at least two thirds is geometry.
Also warns the port off a global tone correction: the curve does not transfer.
Fitted on the title and applied to the menu it closes 29.7 percent; the other way
round it makes the title 24 percent worse.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
Left open earlier as do-not-fit. Closed by adding observables rather than tuning
a parameter.
The draw s vertex buffer carries positions and colours at the same instant, so
all four quantities must agree on one t. Solving independently: quad A x gives
357.88, quad B x 357.58, quad A alpha 355.75, quad B alpha 354.09. The alphas are
about 50x less precise per unit of time because alpha is a byte changing by only
0.27 to 0.33 levels per keyframe unit, so a single level of quantisation is worth
1.5 to 1.9 units, which at 4 px per unit is 6 to 8 px of sweep. The 11.5 px was
that.
At the position-derived t = 357.7 every observable lands: centres within 0.70 and
0.48 px, both alphas inside one level, and the parent alpha is 0 throughout. And
there is no pivot correction to find -- the leaf pivot is (200,90) against a
399x180 sprite, so the pivot is the sprite centre and rotation displaces it by
nothing.
The methodological point is the one this exchange started with, inverted. Earlier
a rule looked confirmed because it was checked against alpha, the insensitive
field. Here the same insensitivity manufactured an apparent 11.5 px error. The
insensitive quantity does not merely fail to falsify, it invents residuals. Solve
on the fastest-moving field and check the slow one, never the reverse.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
They implemented the leaf rule and reported the leaf top-left at x about -324 at
t=355, off-screen left, against 781 here, and asked how a rotated 600-percent
quad s declared pos relates to its drawn centre. It is not a geometry question.
Their stated pairing is t=150 at x=-639, t=540 at x=-39. On the disc the poses
-639 / -39 / 1521 carry times 0 / 150 / 540. Their pairing gives each pose the
NEXT pose s time -- exactly the association ui-keyframe-record-layout.md refuted
and HANDOFF carries a red banner about. Feeding their pairing into the same
interpolation reproduces -324 to the digit.
With the corrected association t=355 gives top-left 781 and centre 980.5 for the
399-wide sprite, against 992.0 measured off the capture.
So the leaf path still carries the pre-fix association although the top-level
parser was corrected: a leaf is parse_build on a sub-slice, so anything reading
leaves through a separate path can still be shifted.
And the reason it looked confirmed is worth keeping: alpha at t=355 sits inside a
long segment where a one-keyframe shift barely moves it, while x sweeps 1560 px
over the same span. The rule matched on the insensitive quantity and was wrong on
the sensitive one -- check a new interpretation against the fastest-moving field,
not the one that happens to agree.
The residual 11.5 px between 980.5 and 992.0 is left open rather than fitted; a
rotation about a declared pivot rather than the centre would displace by roughly
that much and nothing here measures it.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
The port asked for the composition rule and declined to guess it, which was the
right call. Delivered on the page they read: draw the leaf on its own timeline,
do not multiply the parent s alpha in, with the refutation stated -- multiplying
predicts zero at the observed time and the sweeps would be invisible.
Keeps the two limits that matter to a consumer. It is not a universal precedence
rule: here the parent is a container with no sprite, while for a button the leaf
duplicates the parent and the parent wins, so the discriminator is which record
carries the geometry. And because every observation has parent alpha zero, leaf
wins is not separated from parent ignored because it draws nothing.
Also flags their title_jp ptlogo_eff2 lead as untested by me, with the reason it
is worth checking: if its two-element leaf carries the geometry the same way, the
125 percent scale may be the parent s.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
The port asked whether a blend field exists and whether _eff layers draw
additively, naming it as their largest remaining oracle gap. Both answers are no
and the cause is already decoded.
Additive blending is refuted specifically: T8aD +0x04 bit 0x02 as an additive
selector was tested and every measure worsens against the capture. The export
carries no blend field because none has been found -- the per-draw capture
records primitive type, index count, shader hashes, texture bindings and vertex
attribute 0, but no RB_BLENDCONTROL, and reading real blend state needs a Canary
change that is blocked here.
One of their three eliminations is overturned. They ruled out the ptloop sweeps
as 399x180 at (441,270) with keyframes holding position constant -- that is the
unscaled, unrotated geometry. Measured off a GPU draw capture, the live title
submits two rotated quads: ptloop01 at 400x1076 rotated +30.26 degrees centred
(992,359), and ptloop02 at 400x1444 rotated -45.28 degrees centred (467,360),
the scales being 600 and 800 percent. Two quads at x about 467 and 992, leaning
opposite ways, is exactly their signature of darker centre-left and brighter
right nearly cancelling. Our own renderer shows the same residual from the same
cause, tiles running -38.6 then +33.8 across the band, so it is a shared decode
gap rather than a defect in their compositor.
The rotation itself is decoded: keyframe block +12, degrees, clockwise-positive,
confirmed against a framebuffer capture. So their biggest oracle gap and the
rotation question they raised for the human are the same item.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
The port asked for this to have its own line rather than sitting inside a drive
report, and they are right -- it is a third independent confirmation of a claim
that the port authors from.
The claim rested on GamePart_Title s sub_821C5580 playing cue 1103 (static code)
and on the bank s two declared wave sizes matching what an XMA probe saw (disc
census). On a driven boot, BGM_103 s two waves were handed to the XMA decoder at
the moment the main menu appeared -- observed being decoded on arrival at the
screen, rather than inferred from a table or matched by size afterwards.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
Records the port s measurement on the page they read, because it closes the last
open question and my own pages carried the hypothesis it settles. Keeps all
three limits as they stated them, including that streams 2 and 3 are
indistinguishable to the instrument so no selection rule is vindicated, and that
the one-of-three-streams warning stands with its character changed rather than
its colour.
Also names the capture that would strengthen it most and says plainly that I have
not taken it: S00A rather than a longer ADV, why it is structurally different,
and what it costs -- a driven rendered run, so no --gpu=null and the additive
padding comes with it.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
The pulse-period argument for trusting the settle-time run is withdrawn, and the
port authors from those numbers so it belongs on the page they read. The plate
delay survives because it agrees with three independent prior readings; the menu
build-in and B-to-title are anchored by nothing, so a few per cent of emulator
slowdown sits inside them undetected. That is a second, independent reason to
treat those two as provisional beyond their being one-run figures.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
I wrote that BGM_001 s declared 173.821 s disagreed with a decoded 167.663 s,
and explained the gap as declared covering the encoded stream including trailing
silence while decoded is where the audio stops. The port decoded it fully: the
bank yields 173.809 s of PCM. There is no disagreement -- 167.663 s is where the
music fades out, measured from the audio, and the stream continues silent to its
declared end inside that same decode.
So the declared-rate method is better than this page claimed, and is now
cross-checked on three banks against independent decodes: BGM_103 87.750 vs
87.744, BGM_102 37.487 vs 37.482, BGM_001 173.821 vs 173.809 -- agreement 5 to
12 ms.
The conclusion survives unchanged and is the useful half: trust it for lengths,
not for musical boundaries. A declared length includes whatever silence the
encode carries, so it is not a loop point.
Also records in METHOD a defect shape the port hit three times in one pipeline,
each invisible to every check except a level: normalising by how many inputs
there are rather than how many carry signal. A silent chunk in a voice sum, a
silent channel in a mono fold, and a silent sub-wave -- the 10240-byte bank
header wrapped to 10300 B -- counted as a third stem in a music sum, which put
every real stem at 1/3 instead of 1/2 and cost 3.52 dB on all menu music for two
iterations. This corpus s census said two waves and the exporter s divisor said
three; the count that disagrees with a census is the one that is wrong.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
States the identification, the caution that it does NOT establish which screen
BGM_102 belongs to, and the one thing the port can use today: BGM durations from
the corrected XMA1 PsuedoBytesPerSec with no decoder. Flags that those durations
include trailing silence -- BGM_001 reads 173.821 declared against 167.663
decoded, a gap matching the 6.15 s of silence this page already records -- so a
menu loop point must use the decoded figure.
Also records that a refutation attempt on this page s own BGM_103 wave sizes
failed: both match the disc exactly.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
The finding landed in docs/re/ in the previous commit; an answer not reachable
from HANDOFF is not delivered. States plainly that "take one stream" was mine,
that the port implemented it, and that it is withdrawn -- together with the
caution that summing is not thereby right, because an equal-gain 1/n sum of
channel pairs is not a downmix and the port s measured 6.02 dB loss was real.
Neither rule is established, so the manifest should say the value is authored.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
The port chose a voice presentation on the argument that ADV chunk 1 is
mono-in-stereo and chunk 2 is dual-mono, so chunk 2 s extra bytes encode a
duplicated channel rather than fidelity -- which would explain its higher
declared PsuedoBytesPerSec without appealing to encode quality.
Their ADV channel measurement stands. The generalisation does not. If stream 3
were systematically the same take with its channel duplicated, its size ratio to
stream 2 would be tight across the 28 three-stream cues. Measured:
min 0.0778 (S00A, the silent one)
median 1.2565
max 2.9163 (S06A)
sd 0.5057
within 15 percent of 1.0: 12 of 28
A 37x spread is not a duplicated channel, and the declared rates scatter with
them -- S06A is 5661 against 16513 B/s. Whatever distinguishes the three streams
varies per cue rather than being a fixed channel-configuration triple.
This does not touch the port s decision, which is to take the loudest
presentation: that is a per-asset content measurement, not a structural rule, so
a scattering ratio cannot undermine it. It touches the explanation, which should
not harden into a fact about the format.
Two curiosities recorded: S12B s three streams are byte-size identical at 14396
each, and BIRD_224 is 3-stream while being a non-movie cue, so the shape is not
exclusive to cutscenes.
Also narrows the settle-time page s own generalisation. The port measured its
boot the way this corpus measured the game and found the sequencer NOT late --
its 0.6 s discrepancy was arrival-to-arrival timestamps compared against visible
spans, the plate-delay trap in a second place. So what is supported is that
rest.t is the wrong landmark for the TITLE, not that everything paced off it is
late. And the offered re-take of the one-run menu figures is recorded as
declined, with the reason, rather than left looking unfinished.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
The port s boot sequencer paces every screen off rest.t, which is the last hold
keyframe rather than when a screen arrives. Measured on one cold boot: the
container had no Xenia storage root at all, so this is a fresh profile with no
shader cache, the slowest case.
title build-in (first ink -> art fully drawn) 0.23 s
title settled -> PRESS A plate on 2.247 s (disc declares 120 units)
plate pulse period ~2.37 s
main menu build-in 0.531 s
B -> title 0.482 s
A -> menu 3.763 s DO NOT AUTHOR, see below
The title s rest.t is 251 units = 4.183 s and its art is finished at about 2 s,
so a sequencer pacing off rest.t holds it roughly twice as long as the game does.
Instrument controlled before the run: 9/9 on the content classifier including
the movie-frame and difficulty-screen negatives, 4/4 on the plate detector; the
run sampled 7.99 fps against a requested 8 with an independent one-shot grab
cross-checking every 20 s.
Records a refutation attempt of mine that FAILED. The probe s own marks gave a
plate delay of 3.203 s against the corpus s 2.13 s, which on a cold-cache boot
looked like a real effect. It was the instrument: the plate pulse period is an
internal clock for presentation rate and measures 2.369 s here against the
corpus s 2.3, so the run is not slowed, and re-measuring from content gives
2.247 s. The probe s title_static mark fires during the crossfade out of the
attract movie, before the wordmark has drawn -- glyph was still 0 when it fired.
Also a third independent reproduction of the A-path load stall: 13 frames,
1.53 s, surface mean 26.631 against the earlier 14/1.53 and 12/1.39 at 26.626.
This boot had no shader cache, so it is not a warm-cache artefact. Noted that
the earlier pair agreed to six decimals and mine agrees to three.
Reach: one run. The menu build-in and B->title rest on it alone.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
The port implemented "take the highest-rate stream" and reported that on ADV it
selects the QUIETER presentation -- chunk 2, 1171516 B at -8.3 dBFS, over
chunk 1, 1118268 B at 0.0. They were right to flag it rather than accept it.
My sentence was "the highest-rate, highest-gain one is chunk 1". Those two
criteria do not select the same stream and the sentence should never have joined
them; the parenthetical named chunk 1 while the rule named chunk 2. Withdrawn.
What the header does decode, read off the bytes: the fmt chunk is a 32-byte
XMAWAVEFORMAT, little-endian, and +0x20 is a declared PsuedoBytesPerSec -- 8142
and 8530 on ADV s two presentations, agreeing with the computed rates to 0.02
percent, with 48000 Hz at +0x24. So the rate is decoded rather than inferred.
What it does not decode: wEncodeOptions (0x10d6), channel count and channel mask
are byte-identical across the presentations. Nothing in the header ranks them,
so stream selection stays an authored choice and the port must know it is
authoring. Settleable in one emulator run -- a capture of the intro with the
dialogue audible says which level the game plays -- and not yet done.
Also records that sylpheed-cli audio info is misaligned for XMA1: its "16
channels / 4310 Hz / 2-bit" is wBitsPerSample, wEncodeOptions and the channel
fields read at the wrong offsets.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
Closes the last open question on the voice regions: why one cue s byte span
decodes to ~2.6x the movie s length.
The port measured, with controls including a cross-movie negative, that a
region s leading chunk is the TAIL of the full-length chunk that follows it --
r = 0.998 at a lag that puts it flush against that chunk s end, residual 16.7 dB
down over 84.5 s. They withdrew their own earlier 0.768, which came from a
search that scored best on the boundary of its own lag range.
Checked it here by an independent route that needs no decoder. If the leading
chunk is the tail of a full-length first stream, the whole leading stream should
be one complete take of chunk 1 s duration. For ADV: 504464 + 808304 = 1312768 B
at chunk 0 s byte rate of 9559.7 B/s is 137.323 s, against chunk 1 s measured
137.324 s. One millisecond over 137 seconds, from byte rates rather than from
envelope correlation.
And the byte structure settles the shape disc-wide. Counting stream starts inside
every inter-descriptor span: 258 hold exactly 1 stream, 28 hold exactly 3, and
nothing holds 2 or any other number. All 20 spans over 1.5 MB are 3-stream. The
95 movie regions decompose 70 + 8 + 17, and the 8 are independently the same 8
the first census found as bank-header-with-3-chunks.
So 359 s = 84.55 + 137.32 + 137.32: three presentations of one take, the first
clipped by resolve_movie_voice_region s own 1.5 MB guard.
Consequences recorded for the port: dropping the leading chunk is removing a
duplicate rather than truncating, so the hedge is lifted; but summing chunk 1
and chunk 2 is wrong, because they are the same take at different gain, not two
stems. Take one stream.
Also flags a coincidence I nearly built on: the 504464 B constant is structural,
not proportional -- ADV s proportional prediction lands within 8 bytes of it and
S00A s is 4305 B out.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
My own leading hypothesis -- that the leading chunk is an in-mission VOICE_D_*
line -- is refuted, on the route the port suggested: widen the enumeration past
the 95 manifest-bound movies and the byte-span test settles it without anyone
listening.
Scanning the stream for every trailer descriptor (the (id, 0x11) pair whose id
repeats at +0x800) gives the complete cue partition, mission lines included:
287 descriptors in a 116.2 MB window, all 287 carrying an id the 4280-name
registry names. Every one of the 17 leading spans is bracketed by
desc(N-1)..desc(N) where desc(N) is that movie s OWN cue id. Zero mission lines.
The mechanism is a guard in our own resolver. resolve_movie_voice_region takes
the predecessor trailer as the region start, guards it with
end - start < 1_500_000, and falls back to the .slb TOC anchor when that fails.
Cues with a true span over the guard: 17, of which 17 are stream-opening. Cues
under it: 78, of which 0. Perfect discrimination both ways. The anchor sits a
constant 504464 B after the true predecessor trailer on all 17, which is
unexplained.
Not established, and stated as such: this does NOT mean the export truncates N
seconds. The port s decode already has ADV s region at 359 s against a 137 s
movie, so it over-covers and the byte-to-time mapping is not linear. No XMA1
decoder in this container to check.
Also withdraws a claim this page had adopted from the port -- that chunks 1 and
2 are two stems of one performance. The port refuted its own claim by decoding:
S00A chunk 2 is digital silence, ADV chunk 2 is 0.60x chunk 1 with the residual
26.8 dB down. Equal duration was a shape match and Q10 s music census should not
have been carried across to voice on it.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
The port hit a 2+1 chunk signature on a resolved movie-voice region and asked
whether the bank-header explanation that closed HANDOFF Q10 also covers it,
rather than assuming it. It does not, and the discriminator is mechanical.
Disc-wide over the 95 English movie-voice regions the manifest binds:
78 open with a bank header -- bank_header_len fires, 10240 B = 5 packets
exactly, every time. That is the BGM case.
17 open with a leading headerless stream -- bank_header_len is None, and all
17 have length congruent to 1392 mod 2048, the disc s own derived data
offset. No other residue occurs.
0 begin at a RIFF.
Counting chunks does not discriminate: 8 bank-header regions also yield three
chunks. slb.rs already predicted this in its own doc comment -- the header
signature has "zero false positives on the 7993 mid-bank windows, where the
leading region IS real" -- and a voice region is a mid-bank window by
construction.
Also tested the obvious defence of dropping the leading chunk, that it is the
predecessor cue s audio: 0 of 17 leading spans lie inside any other resolved
region, 0.0 percent on every one. The test finds overlaps where they exist (16
overlapping pairs among the regions, 60 exactly-adjacent boundaries, 73 of 78
bank-header regions starting where another ends), so the zero is not the
instrument.
Left open, with reach: the census covers movie-voice regions only, and the same
stream carries the in-mission VOICE_D_* cues, which are not enumerated -- the
leading bytes plausibly belong to one of those. Could not be settled by
listening: no XMA1 decoder in this container, and sylpheed-cli audio info
reports these chunks as 16 channels / 4310 Hz / 2-bit, which is visibly wrong.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
`menu-navigation-semantics.md` advertised "the cheap way to finish this":
read 0x828A690C as a live screen id and 0x828F38AC as the cursor, under
--gpu=null with no screenshots. `menu-state-in-memory.md` withdrew exactly that
identity ON THE SAME DAY it was published -- three back presses send the
"cursor" 36 -> 38 -> 40 -> 41, and a cursor returns when you go back. They are
monotonic counters; the cross-run agreement is the same key sequence producing
the same count.
The recommendation stood for three days after the page it cited had killed it,
and either document would have been believed on its own. Marked withdrawn where
it was recommended, with what the words ARE still good for (did the game react?)
and the consequence: a measured button->GamePart-id binding stays unfinished
because no screen enum has been located.
Also delivers Q4 to HANDOFF in the shape the port asked for -- exactly one
main-menu button opens a GP_TITLE entry (EXTRAS -> entry 6/9); the other four
leave the archive. That was measured on 2026-08-28 and was reachable only from
docs/re/, which the protocol counts as undelivered.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
The port challenged HANDOFF's loading-screen row and was right. The Q2 row said
"0/1 and 10/11 are the LOADING screen"; the dated section above it says
"entries 0, 1, 12, 15". Both are true, in different index spaces, and the page
did not say which.
Verified against the bytes rather than the table:
screen list GP_TITLE.pak -> 12 builds, ordinals 0..11
screen list --all GP_TITLE.pak -> 16 builds, ordinals 0..15
Only under --all does the ordinal equal the pak entry. Without it ordinal 10 is
entry 12 and ordinal 11 is entry 15. `screen info --all --build 10` shows
palogo_sqex; --build 11 shows palogo_gamearts / seta / anima; 12 and 15 show
pgloading_*. So in ENTRY space 10/11 are the publisher and developer splashes,
which is exactly the screen the wrong reading would have renamed.
It would have validated silently: the port's screen_names.json is keyed by
entry. Q2 row corrected to entry space and marked; the trap is in METHOD under
"Mechanics that have bitten", with the rule that a number leaving this
repository says "entry N", never "build N".
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QsEPXWVaEpyfudtR6re1Pd
The port challenged HANDOFF's "costs one element's blend on one screen" with a
census of 105 elements sharing a layer key across 12 of 16 screens. The two
numbers count different things -- elements vs overlapping pairs -- so it is not
the contradiction it looked like, but the objection stands and the line was
wrong.
paint_order_audit already reports overlapping ties per entry, and over all 16
GP_TITLE entries: 5 use a measured order and carry no tie risk; of the 11 that
fall back to the derived order, 7 have overlapping ties, 24 pairs in total. The
Japanese title (entry 7) alone has 16, because it is the twin of the one build
whose measured order exists and has none of its own.
Overlap bounds where a wrong tie-break COULD show, not what it costs; nobody has
measured how many of the 24 change a pixel, and the port is right about that too.
The rule itself is unaffected: the layer key is still decoded and the derived
order still reproduces every measured order exactly except the title's eight
tied pairs.
Census committed at docs/re/data/paint-order-ties-gp_title.txt.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Nsxw1A9JseUw99Yw1ZRQzY
The port caught this before writing a name: over the twelve bundles is_build
accepts, ordinals 10/11 are entries 12/15, while ENTRIES 10/11 are the two
splash bundles. A key written from an ordinal names the publisher wordmark as a
loading screen and still validates. Restated in entry space throughout.
The port caught this with arithmetic off the disc, and it was right: build 2 has
a keyframe group of its own, so "when build 4 has settled, wait 2.13 s, then
composite build 2" puts the plate at settle + 2.13 + 3.97 s. Confirmed build 2's
group here independently of their message: `ptbtn00.t32` reaches a=255 at t=238.
The reconciliation needs no free parameter. Both builds run on ONE clock, started
together, and the premise that fails is `rest.t`:
rest.t is NOT when a screen settles. It is the last HOLD keyframe before the
exit. ptlogo1 rests at t=251 and stops moving at t=42.
The title's visible build-in ends at t=118, where pteff01, pteff02.prm and
ptlogoall_eff end their ramps together. 238 - 118 = 120 units = 2.000 s, against
a measured 2.138 and 2.132. So the interval the two runs agreed on to 6 ms was a
DECLARED one and I handed over a wall-clock reading of it.
That reading is 6.7% long, and the corpus already knew why: 120 units in 2.135 s
is the game presenting at 28.06 / 28.14 fps against a nominal 30, and the idle
title was independently measured at 28.5 fps before these runs. Corroborated from
inside the same two runs -- first pixels -> settle is 1.643 s and 2.131 s, a 30%
spread, while settle -> plate is 2.138 and 2.132. Frames are dropped during the
build-in, not during the hold, which a change in the game's own timing could not
do.
So the port authors nothing here. What is unchanged: ScreenView still has to draw
two builds at once and the boot's end state is still not plate-free.
Not settled, and said so on the page: which reading of the keyframe times is
right (it moves the plate by 2 units and I cannot separate them from these
traces), and my settle landmark to better than +/-5 units.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014voBspJ6kFncNErZJuZcLw
The port hit `sound_bank_riffs("BGM_103.slb")` returning three against a census
that says two, and refused to guess which to drop. It was our reader.
`to_xma_riffs`'s hybrid branch derives a leading packet stream's start as
`first_riff % XMA1_PACKET`. That is right only when the bank header is smaller
than one 2048-byte packet -- true of the voice banks the branch was written for
(1392/1468/1600/1728), false of a music bank, whose header is exactly five
packets. The modulus returned 0 and the whole 10 240-byte header was emitted as
sub-wave 0.
The header states its own length, so the guard needs no threshold: BE u32 0x800
at +0x18 with the bank id repeated at +0x00 and +0x20, header length in blocks at
+0x24. Disc-wide over sound.pak's 9 519 entries, 28 match at offset 0 -- every
music bank, ids 1001-1023 and 1101-1105 -- and on 28/28 the declared header ends
EXACTLY at the first RIFF. Zero have a gap, so a header and a leading packet
stream never coexist here; zero false positives among the other 9 491.
Controlled rather than argued: decoding the emitted region through the same
chain, on the same bank, in the same run gives 0.009 s of PCM where the bank's
real wave 0 gives 87.744 s against a declared 87.75. The region is also 99.1%
zero bytes. And the oracle had already said two -- the XMA probe at the main menu
saw exactly two streams, at BGM_103's two declared wave sizes.
BGM_106-109 are deliberately NOT in the 28: their entries start mid-bank, so they
have no header at offset 0 and their leading region is real audio. The
VOICE_D_453 recovery is untouched and its tests still pass, 10/10 green.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014voBspJ6kFncNErZJuZcLw
The one number the port said decides a structural question on its side: whether
`ScreenView` has to draw two builds at once. It does. The boot title shows
build 4 alone, and 2.13 s after build 4 stops animating it composites build 2
over it. Two independent boots agree to 6 ms (2.138 / 2.132), which is under one
sample interval.
Measure from SETTLED, not from first pixels. "First drawn -> plate" is 3.78 s in
one run and 4.26 s in the other, because the build-in animation itself ran 1.64 s
and 2.13 s -- that spread is the emulator's frame pacing, and it is exactly the
kind of number that looks like a measurement.
Ruled out before believing it: that the plate was pulsing all along, too dim for
a thresholded glyph counter. The counter reads EXACTLY 154 -- the committed
no-plate title's own value -- for every frame of a plateau nearly one full pulse
period long, with zero variation, and the surface mean is flat to +/-0.03 across
it. A cycling overlay moves both.
Also settled, and also not:
* the black hold between two screens is 0.14-0.30 s, which brackets the port's
authored 0.17-0.23 s and the file's declared 12 units. Their constant stands.
* the (A)->menu latency is STILL not available, and now the reason is known.
Both runs freeze one frame for ~1.4 s at surface mean 26.626 -- agreeing
between runs to six decimals, and reproduced in run 2 with stream restarts
disabled, so it is not the capture path. It is a guest load stall: the (B)
path, which loads nothing, has no freeze at all. Any figure from it would be
an emulator load time.
Refutation attempt, recorded whether or not it survived: navigation.md's "the
title is not input-ready for about ten seconds, and even then (A) registers
roughly half the time". At 7.29 s and 7.28 s after the title settled, (A) was
accepted first press in both runs, as was (B) on the menu. n=2 only makes "half
the time" unlikely (p ~ 0.25); it contradicts the ten seconds outright.
And the standing red banner is withdrawn: the interactive title IS reachable in
this container, twice, with no pad input, in ~3.5 minutes. Why it changed is NOT
established -- this container came up with no Xenia storage root at all, so run 1
created a profile -- and that is written as a correlation for the next session to
test rather than as a cause.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014voBspJ6kFncNErZJuZcLw
Two results and one retraction, all from the same session.
REFUTED: 'an ~8-10 s idle returns to the title' does not apply to the main menu.
Held untouched it stayed put for >= 60 s, correlation never leaving
0.9245-0.9249. That timer is real but belongs to the TITLE. It was the only
reason 'B leaves the main menu' was classed as authored, so Q5's B rule is
upgraded to measured-ordering: B is delivered (canary logs vk=5801) and is the
only input in >= 100 s before the return.
The PRESS (A) plate: the boot title presents build 4 WITHOUT the plate first --
green-glyph 154, against 159 on the committed no-plate capture and 753/977/1493
on plate titles -- and the plate arrives after. That is the port's third option.
RETRACTED: four durations taken the same day. classify_array costs 1503 ms per
frame; running it per frame against an 8 fps x11grab drained the pipe at
0.64 fps, so every classified frame was stale and increasingly so. It
manufactured 'plate 24.66 s after the title art', 'B->title 15.58 s', 'B->title
25.60 s' and 'A->menu 20.26 s'. The tell: a transition, a press and a fade do
not share a duration, and the two B figures GREW across a longer run.
A backlog preserves ordering and destroys durations, which is why the sequence
results above stand and every timing does not. The ring's period is unaffected
and that was checked, not assumed -- ring_period ran at 15.03 fps against a
requested 15.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KNR5Y79D1T4bBr6gJQaWFP
The audio work was three parts and I shipped two. The transcode-fidelity method
and the pinned 5.1 downmix landed; the null sink -- the only one that answers
"what does the GAME play" -- I deferred to "the next natural rebuild window" and
then rebuilt both images four times without doing it.
pulseaudio-utils is now in both, with tools/audio-capture wrapping it: a null
sink is a real device as far as an application is concerned, so Canary and Godot
open it normally and parec records what they emit.
This unblocks the decoder's Q8. The cue-to-event bindings are currently a name
match against the authors' own identifiers -- a plausible guess, not a
measurement -- and capturing what the game plays on a menu move converts them.
`audio-capture run` reports the peak level and warns when the capture is silent,
because silence is the failure that looks like success: a WAV of exactly the
right duration, full of zeroes, because the application opened a different sink.
A duration check alone passes it, which is how a confident wrong number gets
made.
The container was replaced at 11:07:38 UTC, 25 minutes after 3db09a3 wrote
"the decoder container has no disc". /disc is a real read-only bind mount
(device 2050 against /'s 92), 6.2 GB, 74 entries under dat/, and
`sylpheed-cli screen list` returns 12 GP_TITLE builds.
The reusable half is the instruments. `find / -xdev` cannot cross into a bind
mount on another device, so its "no ISO, no default.xex, no GP_TITLE.pak"
is what it returns whether or not the disc is there. `sylph-doctor` only ever
looks under /work and never consults $SYLPHEED_DISC, so it still reports
"no ISO" against a disc that works. Two instruments, one blind spot, read as
corroboration.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KNR5Y79D1T4bBr6gJQaWFP
find / -xdev turns up no ISO, no default.xex and no GP_TITLE.pak; /exchange is
empty; SYLPHEED_DISC is unset; sylph-doctor agrees. Everything else in the
container is healthy -- xenia_canary is built, :98 is up, screenshot works,
Vulkan enumerates. There is simply no game to boot.
The cause is in the launcher. Before c58196b, sylph-agent bind-mounted the
human's working tree at /work, and the ISO and sylph_extract/ live in that tree,
so the disc arrived incidentally with the repository mount. c58196b replaced
that with `-v sylpheed-decoder-repo:/work` -- correct for the collision class it
was written for -- and nothing was added to replace the disc. sylph-decoder
still forwards SYLPH_ISO, but as a bare environment variable naming a host path
that does not exist inside the container. sylph-port mounts the disc explicitly,
so the one container that owns the disc and the oracle is the one without them.
This shuts the oracle, every sylpheed-cli call that names a pak, the disc-gated
tests, and -- because the XEX is on the disc -- the static PPC route too. It
does not touch the committed corpus, which is what this iteration worked from.
A second, smaller casualty of the same migration: no git identity is configured
anywhere, so the first commit in a fresh container fails outright. Both are
recorded with their fixes; neither is worked around, since the launcher runs on
the host and this container cannot restart itself.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013UxPvE5cz7zekXBKi7Xw2r
The last structural fix for the collision class that has bitten three times. Both
containers now clone the repository into their OWN named volume instead of
bind-mounting a human's working tree, so an agent's local git config cannot
capture a human's commits, a credential helper cannot leak a container-only path
onto the host, and a `git add -A` cannot sweep another party's in-flight files.
Cloned once at startup and never auto-pulled: pulling under a running agent
moves files out from under whatever it is mid-edit, which is the same bug again.
Accepted knowingly: Claude Code keys per-project memory off the working
directory, so moving off the host path starts that memory empty. The corpus in
docs/ is the memory that matters and it travels with the clone.
Other changes:
* docker/agent -> docker/decoder; the launcher is sylph-decoder. Roles, not
"the agent", now that there is more than one.
* /reborn is gone -- one repository now, so the port reads HANDOFF from its own
checkout rather than through a live read-only mount of someone else's tree.
* Canary mounts separately at /canary; it stays a fork tracking upstream.
* A shared `sylpheed-exchange` volume at /exchange, with tools/ on PATH so
`share` is available in both.
* The decoder's credential file gets the .host-copy treatment the port already
had -- `credential.helper=store` rewrites by rename-over-target, which is
EBUSY on a bind mount and reports a fatal that is not one.
* Budget split deliberately: decoder 5 cpu / 6 GB, port 3 / 4, leaving room for
the planned Referee. "Half the host" was right when there was one agent.
Prompts move to docs/agents/ and are rewritten around the protocol: the oracle
is the running game, dynamic RE stays with the decoder, each iteration must
attempt to refute one claim of the other, and neither may verify its way out of
its own role.
Merges the Godot port into the reverse-engineering repository, preserving both
histories -- 1019 commits of corpus plus the port's 31, brought in by subtree
merge and then moved into place so git can follow each file across the rename.
The reason is not tidiness. The two-repo split forced the exporter to depend on
the decoders by pinned revision, and that created a whole class of failure that
now disappears: a sha reachable only from a topic branch, orphaned by a
squash-merge, breaking a fresh checkout silently at build time. It also forced a
live read-only mount of one agent's working tree into another's container, which
is why a contract file could move mid-iteration. With a path dependency, a
decoder change and the exporter change it requires land in the same commit or
not at all.
Canary stays separate: it is a fork tracking upstream.
New structure for the long term:
docs/game/ how the game is NAVIGATED -- menus, modals, prompts, alerts,
and in-game flight. Written so nobody rediscovers it. Mostly
open questions on purpose; the in-game tutorials are the
resource for the flight half.
docs/port/MODDING.md
modding as a constraint on the exporter TODAY, not a later
feature: one logical asset in one file (the disc splits nearly
everything, and resolving that is the exporter's job), names a
person recognises, PNG/OGG/OGV/JSON only, base-and-overrides so
re-exporting is always safe, provenance in every file.
data/base + data/mods
generated tree and drop-in overrides, both gitignored
exchange/ transient inter-agent files, deliberately outside history
docs/agents/ the team protocol
Both the README and the navigation doc lead with the correction that cost the
most: the oracle is the real game under Xenia Canary. Reborn's renderer is a
hypothesis under test, it has been wrong, and treating it as ground truth
propagated into three documents and both agents before a human caught it.
Scripted modding stays possible without being built: no screen name is hardcoded
in GDScript and there is no native code in port/, which is what Godot Mod Loader
needs to be able to substitute behaviour later.
Two fixes to push-work and the policy that goes with them.
**Tags.** The port's exporter depends on sylpheed-formats BY REVISION, so a
commit of ours is part of its build -- and the commit it pinned lived on one
auto/* branch and nowhere else. Deleting that branch orphans it; squash-merging
it is worse, because squash creates NEW commits, so main appears to contain the
work while the pinned sha becomes unreachable and the port stops building for a
fresh checkout. Silently, at their build, long after the breakage.
push-work now pushes with --follow-tags, which publishes annotated tags
reachable from the pushed commits, and MISSION.md says to tag whatever the port
needs. formats-pin-2026-08-29 at 76653ca is the first, created after the fact.
**Credentials.** This script set credential.helper as --local config, which
PERSISTS in the repository. The repo is a bind mount the host also uses, so the
host's git inherited a path that exists only inside the container and every host
push failed with "unable to get credential storage lock". Now applied with -c to
the single push. Same fix already landed on the port side; this copy still had
the bug and would have re-leaked on the next push.
Committed with a pathspec so the agent's in-flight work is untouched.
1 SPLASH ADDRESSING (was blocking P3). No content predicate exists: design size
fails (every extra composable bundle sampled is 1280x720, like every screen) and
element count fails (fragments run 2..15, the splash halves are 3 and 7). But
GP_TITLE needs none -- `--all` adds exactly four bundles there and all four are
real screens, with the --all index equal to the pak entry index 1:1. And there
are TWO splash screens: 11/14 are the developer logos, 10/13 are the SQUARE ENIX
publisher wordmark, which the port did not have and which the boot shows first.
2 FADE-OUT (was blocking P3). It is (a), and it is bigger than the fade quad.
Every element ends on exactly ONE untimed keyframe, which rules out (b); that
block is where the screen plays out -- quad to a=255, buttons/labels/glows to
a=0, frames hold. (c) is refuted by a null test that discriminates: a black quad
alone holds the button/background brightness ratio constant, and through the
fade it falls 6.50 -> 1.94, 3.4x monotonic.
3 FOCUS (saves P5 rework). Over-vs-instead is unobservable -- the focused sprite
covers the base at 100.0% of base-visible pixels on three pairs once aligned
(true offset (7,7); the centre alignment reads a misleading 78-84%), and
compositing both ways differs by RMSE 1.1 inside the button rect. The real defect
is the focus record's SECOND element: ptbtn0Nf.rat declares ptbtneff01.t32 (a
42x46 glowing ring, focus only) plus the bright label, where the base declares
one sprite. That ring is the marker the port draws nowhere.
5 GAMMA. The capture is not neutral: capture ~ 255*(render/255)^g, g ~ 1.34-1.49,
and the chain says it is a ramp the GAME installed, not a capture artefact. So
RMSE against captures has a floor. Reach stated: the flat patches are all dark
(render ~0-60), so midtones and highlights are unconstrained.
4 ROTATION is a human's call and is recorded in MISSION, not acted on -- the port
rotating while the reference renderer does not would make verify-screen report a
large diff meaning "the port is right". The RE half is answered: rotation is
about the declared pivot, measured against a GPU capture.
The focus record's +20 element-count word is marked 🟡 not ✅ -- read on GP_TITLE's
ten button records only; the disc-wide check is written and still running.
Closes the reach caveat the `opt ` name fix left behind: 60 of 18 002 RATC
children carry no `opt ` block, and it was not established whether they lack one
or sit past our 128-byte window.
Neither. They are not children. `examples/ratc_optless_children.rs` re-runs
`ratc::parse`'s own guards over the disc and reports which one fired: all 60 are
"tag beyond the window", none is rejected by length, gap or charset, none is
child #0, and all 60 live in six bundles of one archive. Within a bundle the
distances back to the nearest tag are an exact arithmetic progression, step
60 600 -- ten different records finding the SAME tag, because there is only one.
Reading a bundle directly: children 1..10 are equal-size T8aD blocks under a
single `opt ` name, `pb_f15_eg_anm.tan`. `.tan` is a FRAME SEQUENCE. One block
declares the resource; its payload is a run of T8aD frames.
Disc-wide, over all 18 718 `opt ` names in all 33 paks: a RATC bundle names
exactly six kinds of resource -- `.t32` 14 756, `.rat` 3 311, `.prm` 367,
`.tbm` 224, `.sbo` 54, `.tan` 6. Six `.tan`, ten frames each = 60, the entire
population with nothing left over. The negative is closed, not narrowed.
Consequence recorded but deliberately not fixed: `ratc::parse` over-reports
there, listing a `.tan`'s frames as anonymous children. Nothing in the menu
milestone reads a `.tan` -- it occurs only in GP_READY_ROOM, which S1 ruled
out -- so no screen the port draws changes.
Also a METHOD entry for this container OOM-killing `slb_leading_segment_disc`
under default test parallelism (SIGKILL, no assertion; 8/8 pass with
--test-threads=1).
`ratc::parse` named each child by scanning backwards for the last printable run
of bytes before its magic. The format states the name explicitly instead, in an
`opt ` block: `"opt " | BE32 len | name | NUL | 3 bytes | magic` -- the same
block `ui_layout::opt_link` already read for a button's focus link.
The scan agrees with it 17 918 times out of 17 942 and is wrong 24 times, every
one the same failure: the 3 trailing payload bytes are themselves printable and
beat the real name. For `pteff05.t32` those bytes are `38 41 58` = `8AX`, so the
full-resolution background of all five menu screens registered under a name no
element declares, resolved to no sprite, and `compose` dropped it through an
early `continue` that -- unlike the two arms above it -- records nothing. The
screen lost its background and `screen render` still reported "all resolved".
`8AX` was never a name. Docs that treated it as one are corrected here.
Disc-wide, and the control is the 17 918 the scan already got right: the `opt `
reading reproduces every one of them. Effect on the five screens is the
signature of the same art at twice the resolution -- mean brightness unmoved,
high-frequency detail x1.15..x1.30 -- which is what the separately-measured
`ui-8ax-fullres-background` result said the game draws.
Also closes a long-standing dangling reference: `pmbase.t32`, recorded as "on
the disc nowhere", is the `GP_STAGE_CLEAR` child the scan called `8AX`. RATC
sibling references now resolve 10 148 of 10 148.
Verified: 114/114 sylpheed-formats unit tests (including two new ones pinning
the `8AX` case byte for byte and the no-block fallback), and every disc-gated
integration suite in sylpheed-formats/sylpheed-cli.
Last iteration I claimed the splash's measured_paint_order [0,2,4,6,1,3,5]
records, between its glow and logo halves, the temporal order they were
seen in rather than depth -- because the halves never share a frame.
The no-overlap measurement is right (glows f94-115, logos f116-211). The
inference is wrong, on two independent grounds:
* Wrong source. That vector is not a read of the draw capture. It is a
read of the live screen object's CHILD ARRAY -- ui-screen-runtime.md
records it literally as "paint order (child slots)". A child list has
a definite order whether or not its children are ever drawn together,
so co-occurrence does not bear on it. The capture was the CHECK.
* The order is in the file anyway. paint_order_audit on GP_TITLE entry
11: derived == measured, 0 inverted pairs, 0 same-layer-key ties. The
glows and logos carry distinct T8aD keys (0xa100 < 0xa110), so the
file orders the halves statically, no capture involved.
I asked the question that started this iteration -- do the title and menu
orders have the same problem -- and the answer is that none of the three
does, for the same reason.
What survives is narrower and now recorded with numbers: how much of each
order its capture actually cross-checks. The title capture is stable (8
draws / 12 quads / 5 textures, identical in all five captured frames
across two logs) and confirms 7 of 24 positions; the menu capture is not
(texture 0x11C30000 present in frame 0, gone by frame 3); the splash
capture cannot cross-check its middle at all.
A counting trap worth the tool: count QUADS, not draws. The menu's draw 9
is indices=24 -- six quads batched from one texture. Counting draws reads
9 where 16 are on screen, and an earlier pass of this analysis briefly
"found" three quads for six declarations that way and concluded elements
were missing. They were batched.
METHOD: check what a "measured" value was measured FROM before reasoning
about its limits. The co-occurrence rule is real, and it is specific to
orders read from draw captures.
ui-prm-primitives recorded that where a .prm paints on a screen without a
measured order is unsolved. For the developer splash it is now measured.
Every frame opens with two full-screen draws before any sprite. The
second is untextured in all 212 frames with a constant vertex colour of
FF000000 -- opaque black -- matching palogo_eff0.prm's declaration
exactly: kind 0x10, pivot (640,360) -> 1280x720, one keyframe, a = 255.
So the splash backdrop is an opaque black full-screen quad from the
bundle itself, painted behind every sprite, which is why a splash render
needs --black rather than the default backdrop.
Not a general rule, and said so: the measured main-menu order puts
pteff02.prm at position 4 and pteff00.prm LAST, the latter being the
screen-transition fade.
And a correction to an existing row. measured_paint_order returns
[0, 2, 4, 6, 1, 3, 5] for the splash, described as "the .prm, then all
three glows, then the three logos". But the glows and the logos never
appear in the same frame -- 0 overlapping frames in 235 -- and two
elements that never co-occur have no observable relative depth. Between
those halves the vector records the order they were SEEN IN, not a
front-to-back relationship.
That does not make the render wrong, and element 0 is a real depth
observation since the .prm co-occurs with everything. But the type of the
claim matters: reading the vector as depth invites compositing all seven
elements at once, which is exactly what does not reproduce the screen.
METHOD: two things that never co-occur have no observable relative order;
when recording an order, note which pairs actually appeared together.
The activation decision is code, and MISSION already says the port
authors the sequence -- so the useful move is to hand over the sequence
measured rather than chase the code. From the 235-frame draw capture, at
1 frame = 1/30 s (2 units/frame, 1 unit = 1/60 s, both settled in Q1):
publisher: SQUARE ENIX logo f1-90 90 frames 3.00 s+ at 0.00
(gap, nothing drawn) f91-93 3 frames 0.10 s at 3.00
developer: both glows f94-115 22 frames 0.73 s at 3.10
developer: both logos f116-211 96 frames 3.20 s at 3.83
Three limits, stated with the numbers rather than after them. The capture
opens with palogo_sqex already at a=255, so the publisher phase began
before the window and 3.00 s is a FLOOR -- every "starts at" is relative
to the capture, not to boot. palogo_anima and palogo_anima_eff get 0
draws in all 214 frames, so a third pair's phase is not in this
measurement. And it is one capture, one run: the glow->logo switch being
a single frame boundary with no overlap is a strong shape, but each
duration is one sample.
What is solid is the part that matters: the 0.73 s and 3.20 s phases are
each within 2% of their element's declared span, so the durations are the
bundle's own and only the ordering is authored. That is the difference
between a port transcribing timing and inventing it.
Last iteration I withdrew "a bundle is a palette" because the evidence
did not choose between selective activation within one bundle and two
compositions shown in sequence. The alternative can be killed from the
disc, which I had not tried.
Hypothesis 2 needs a bundle declaring the GLOWS WITHOUT THE LOGOS. There
is none. Every GP_TITLE entry carrying palogo elements:
10, 13 (publisher twins) palogo_eff0.prm, palogo_sqex, palogo_sqex_eff
11, 14 (developer twins) palogo_eff0.prm + all three logos + all three glows
Four entries, and each developer entry declares the complete set of six.
So whichever bundle was active across frames 94-211 -- entry 11, entry
14, or both in turn -- it declared the logos and the glows, while the
game drew two sprites at a time in disjoint phases.
Therefore only a subset of a bundle's elements is drawn at any moment,
whatever the bundle-loading story is. The conclusion no longer depends on
resolving how many bundles are involved, which is why the texture-base
test's failure stopped mattering.
So the claim is reinstated -- this time by eliminating the alternative
rather than by assuming it away. What worked was not a better capture but
asking what the competing hypothesis would REQUIRE on the disc and
finding it absent.
METHOD: a hypothesis that predicts an artefact can be killed by looking
for the artefact, which is often far cheaper than measuring the behaviour.
Last iteration I wrote that a bundle is a palette whose elements are
selectively activated. The disjoint glow/logo phases have two
explanations and I asserted one:
1. one bundle, some elements run then others;
2. two bundle-loads shown in sequence (entries 11 and 14 are twins
declaring identical sprites).
The draw log's tex[base=...] looked like it would separate them. It does
not, and the control is in the same table:
publisher splash f1-90 0x11C30000, 0x10000000
glows f94-115 0x11C30000, 0x10000000
logos f116-211 0x11C30000, 0x10000000
The publisher splash is certainly a DIFFERENT bundle from the developer
splash, and it uses the same base. So 0x11C30000 is a reused upload slot,
not a bundle identity, and the test cannot choose between the two
hypotheses.
Survives: a bundle's declared elements are not what gets drawn.
palogo_anima and palogo_gamearts carry byte-identical keyframe times and
in the same run one is drawn 95 frames and the other none -- and
whichever twin was active declares both. The phases are strictly disjoint
(0 overlapping frames in 235).
Withdrawn: the mechanism. The practical consequence is unchanged --
compositing every element of a bundle does not reproduce what the game
shows over time -- but the why is not established and I stated it as
though it were.
What would separate them: a per-draw capture recording the bundle each
draw came from, or a file-IO log showing whether a second RATC entry is
read between frames 115 and 116.
METHOD: a shared resource address does not identify the resource's owner;
and state the mechanism as a separate claim from the observation, or the
weaker one inherits the stronger one's evidence.
Two checks on last iteration's "sequential, not simultaneous" reading.
First, the phases really are disjoint. If glows and logos ever shared a
frame the claim would be wrong. Across all 235 captured frames the count
of frames containing both is ZERO, and the switch is a single clean
boundary -- f110-115 draw 1280x720 + 262x108 + 525x90, f116 onward
1280x720 + 243x86 + 499x72. Two sprites either side, no transition frame.
Second, and larger: a third of the bundle is never drawn. Entry 11
declares three logo/glow pairs and only two appear.
palogo_gamearts / _eff 95 / 22 frames
palogo_seta / _eff 95 / 22 frames
palogo_anima / _eff never
palogo_anima declares the SAME keyframe times as palogo_gamearts. Two
elements with byte-identical data, 95 frames and 0 frames in one run.
Reach: the capture covers frames 1-214, so this is "never in the window".
So a bundle is a palette, not a script. Its elements say what to draw and
for how long; which of them run, and when each starts, is decided outside
the placement data. That is the same conclusion the boot-order work
reached from the other end -- the driver is code, not data -- now with a
per-element measurement behind it.
For the port, concretely: compositing every element of a bundle does not
reproduce what the game shows over time. It is the right thing for a
static screen that settles, and it is not a timeline.
METHOD: two elements with identical data and different outcomes is the
strongest possible evidence that the decision is elsewhere.
