fabi/Sylpheed
1
0
Fork 0
Code Issues 9 Pull Requests Actions Packages Projects Releases Wiki Activity

re: which archives the disc can name -- 100% for menu paks, 0.0% for the 2D paks and READY_ROOM

Browse Source 
Chasing more prefixes for the 419 HUD config paths would have been the
same mistake twice, so this censuses the whole disc: harvest every
plausible asset-name string from every archive (6027), hash each under
the 16 known path prefixes, and ask per archive what fraction of its TOC
that explains.  idxd-container.md and idxd-tag-hash.md own the hash;
neither says which archives are reachable by it.

The result is bimodal.  GP_TITLE 16/16, GP_PAUSE_MENU 11/11,
GP_STAGE_CLEAR 44/44, GP_CHALLENGE 151/151, GP_MOVIE_THEATER 56/56,
MiscBin 40/40, GP_GAMEOVER, GP_BUNK, GP_SYSTEM, GP_TUTORIAL and fonts
are at 100%; tables.pak 78/79, GP_DIALOG 139/140, the six language paks
115/117; GP_MAIN_GAME_* 751/1119.  Then the cliff: the six
GP_MAIN_GAME_*2D.pak at 0 of 711 each, and GP_READY_ROOM at 6 of 1106 --
the largest UI pak on the disc, not previously noted anywhere.

Eleven paks at 100% in the same run is the control that makes 0.0% a
finding rather than a failed guess.

So the 419 HUD paths are not missing assets: nothing in the 2D paks is
reachable by name from the disc's own strings at all.  Those TOC keys
hash names that are not written anywhere readable.

Also refuted first: the 419 values under 13 name transformations, every
one scoring 0 against the E2D 711 and against all 16630 entries.

Not settled: what those names are.  The lever left is the hash's shape
-- the top byte is the character-sum checksum -- but that needs a name
corpus the disc does not contain.

New structure doc, artefact and regenerator; the other eight regenerate
byte-identical.
This commit is contained in:
Sylpheed RE agent
2026-08-27 15:08:24 +00:00
parent 152704afeb
commit 4e9d7deeb8
5 changed files with 199 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
docs/re/BACKLOG.md
View File

@@ -827,6 +827,42 @@ unknown, what evidence exists, and what the first step would be. Move an item in
field; the stat keys in records not opened here (`MegaTons`, `BulletLimit`,
`CrewCount`, `HP_CLASS`); why the roster lists 59 of 131.
* ✅ **(2026-08-27) WHICH ARCHIVES THE DISC CAN NAME — 100 % for eleven menu
paks, **0.0 %** for all six 2D paks AND `GP_READY_ROOM`.**
[structures/archive-naming](structures/archive-naming.md), artefact
`data/archive-naming.txt`, regenerator `tools/re-capture/archive_naming.py`.
Chasing more prefixes for the 419 HUD paths would have been the same mistake
twice, so this censuses the whole disc: harvest **every** plausible asset-name
string from **every** archive (**6 027**), hash each under the 16 known
prefixes, and ask per archive what fraction of its TOC that explains.
`idxd-container.md`/`idxd-tag-hash.md` own the hash; neither says which
archives are REACHABLE by it.
🔑 **The result is bimodal.** `GP_TITLE` 16/16, `GP_PAUSE_MENU` 11/11,
`GP_STAGE_CLEAR` 44/44, `GP_CHALLENGE` 151/151, `GP_MOVIE_THEATER` 56/56,
`MiscBin` 40/40, `GP_GAMEOVER`, `GP_BUNK`, `GP_SYSTEM`, `GP_TUTORIAL`, `fonts`
— **100 %**; `tables.pak` 78/79, `GP_DIALOG` 139/140, the six language paks
115/117, `GP_SAVE_LOAD`/`GP_LEADERBOARD`/`GP_OPTIONS`/`GP_MISSION_LOG` 91-94 %;
`GP_MAIN_GAME_*` 751/1119 = 67 %. Then the cliff: **the six
`GP_MAIN_GAME_*2D.pak` at 0 of 711 EACH**, and **`GP_READY_ROOM` at 6 of
1 106 = 0.5 %** — the largest UI pak on the disc, and not previously noted
anywhere in `docs/re/`.
🧪 Eleven paks at 100 % in the same run is the control that makes 0.0 % a
finding rather than a failed guess: the method works; these archives are
outside it.
🔑 **So the 419 HUD paths are not "missing assets"** — nothing in the 2D paks
is reachable by name from the disc's own strings at all. Those TOC keys hash
names that are **not written anywhere readable**: composed by the tool chain or
by the executable, or listed outside these archives.
❌ Also refuted first: the 419 config values under **13 name transformations**
(as-is, forward slashes, basename, basename-no-ext, no-ext, UPPER, `.rat`
substituted, `2d\`/`eng\`/`hud\`/`GP_MAIN_GAME_2D\` prefixed, first-directory
stripped) — **every one scored 0**, against the E2D 711 and against all 16 630
entries on the disc.
🟡 Not settled: what those names are. The one lever left is the hash's shape —
the top byte is the character-sum checksum, so candidates are cheap to reject —
but that needs a name corpus the disc does not contain. Also unexplained:
`DefTables` 8.9 % and `GP_HANGAR_ARSENAL` 22.6 % sitting in the middle.
* ✅ **(2026-08-27) THE WHOLE IN-GAME HUD CONFIG IS OPEN — 16 records, 419 asset
paths, a per-stage `ResourceTable` — and NONE of it is name-hash addressed.**
[structures/hud-config](structures/hud-config.md), artefact

1
docs/re/INDEX.md
View File

@@ -99,6 +99,7 @@ files, which is how the same ground got covered twice.
| [`structures/sound-cue-table.md`](structures/sound-cue-table.md) | The cue index in `tables.pak` — message id -> cue -> sound id -> `.slb` bank | ✅ CONFIRMED, 1 326/1 338 script message ids bind to a bank; SOUNDS and FILES agree on the same 12 absentees, 0 orphan files |
| [`structures/cutscene-message-table.md`](structures/cutscene-message-table.md) | Cutscene dialogue — speaker, portrait, on-screen seconds, audio cue per page | ✅ CONFIRMED, field count = 9·PageCount+2 for all 7 PageCounts, 1 252/1 252 caption keys match, 138 ids close both ways |
| [`structures/isl-mission-timer.md`](structures/isl-mission-timer.md) | The mission timer — two sequential countdowns, not a limit and a warning | ✅ CONFIRMED — read from `sub_822639B8`; the threshold reading is |
| [`structures/archive-naming.md`](structures/archive-naming.md) | Which archives the disc can name — 100% for menu paks, **0.0%** for the six 2D paks and `GP_READY_ROOM` | ✅ CONFIRMED — 6027 names × 16 prefixes, bimodal |
| [`structures/hud-config.md`](structures/hud-config.md) | The in-game HUD configuration — 16 records, 419 asset paths, and a per-stage `ResourceTable` | ✅ CONFIRMED — 0 of 419 config paths resolve as pak entries |
| [`structures/mission-script-manifest.md`](structures/mission-script-manifest.md) | `Stage\script.tbl`'s 11 non-`MISSION` fields, and the mission dialogue table they name | ✅ CONFIRMED — 1 of 7 values resolves (`message\MissionDialogMessage.tbl`, 200 records), controls in the same sweep |
| [`structures/stage-numbering-and-player-craft.md`](structures/stage-numbering-and-player-craft.md) | The disc's stage numbering (S01–S16, S18–S29) and the player's craft per stage | ✅✅ CONFIRMED — two independent files close on 6 + 15 + 1 + 6 = 28 |

49
docs/re/data/archive-naming.txt Normal file
View File

@@ -0,0 +1,49 @@
# How much of each pak's TOC can be named from the disc's own strings
# Regenerate: python3 tools/re-capture/archive_naming.py
# See docs/re/structures/archive-naming.md
candidate asset-name strings harvested: 6027
path prefixes tried: 16
archive entries named pct
sound.pak 9519 1 0.0%
GP_HANGAR_ARSENAL.pak 1538 347 22.6%
DefTables.pak 1465 130 8.9%
GP_MAIN_GAME_D.pak 1119 751 67.1%
GP_MAIN_GAME_E.pak 1119 751 67.1%
GP_MAIN_GAME_F.pak 1119 751 67.1%
GP_MAIN_GAME_I.pak 1119 751 67.1%
GP_MAIN_GAME_J.pak 1119 751 67.1%
GP_MAIN_GAME_S.pak 1119 751 67.1%
GP_READY_ROOM.pak 1106 6 0.5%
GP_MAIN_GAME_D2D.pak 711 0 0.0%
GP_MAIN_GAME_E2D.pak 711 0 0.0%
GP_MAIN_GAME_F2D.pak 711 0 0.0%
GP_MAIN_GAME_I2D.pak 711 0 0.0%
GP_MAIN_GAME_J2D.pak 711 0 0.0%
GP_MAIN_GAME_S2D.pak 711 0 0.0%
GP_DEBRIEFING_PILOTLOG.pak 234 78 33.3%
GP_CHALLENGE.pak 151 151 100.0%
GP_DIALOG.pak 140 139 99.3%
deu.pak 117 115 98.3%
eng.pak 117 115 98.3%
esp.pak 117 115 98.3%
fra.pak 117 115 98.3%
ita.pak 117 115 98.3%
jpn.pak 117 115 98.3%
GP_SAVE_LOAD.pak 108 102 94.4%
GP_MISSION_SELECT.pak 88 22 25.0%
GP_LEADERBOARD.pak 87 81 93.1%
tables.pak 79 78 98.7%
GP_MOVIE_THEATER.pak 56 56 100.0%
GP_STAGE_CLEAR.pak 44 44 100.0%
MiscBin.pak 40 40 100.0%
GP_OPTIONS.pak 26 24 92.3%
GP_MISSION_LOG.pak 24 22 91.7%
GP_TITLE.pak 16 16 100.0%
GP_GAMEOVER.pak 12 12 100.0%
GP_PAUSE_MENU.pak 11 11 100.0%
GP_BUNK.pak 10 10 100.0%
fonts.pak 3 3 100.0%
GP_SYSTEM.pak 2 2 100.0%
GP_TUTORIAL.pak 2 2 100.0%

66
docs/re/structures/archive-naming.md Normal file
View File

@@ -0,0 +1,66 @@
# ✅ Which archives the disc can name — and the two it cannot
The previous pass found that **0 of 419** in-game HUD config paths hash to a pak
entry ([hud-config](hud-config.md)). Chasing more prefixes would have been the
same mistake twice, so this censuses the whole disc instead: harvest **every**
plausible asset-name string from **every** archive, hash each under the 16 known
path prefixes, and ask per archive **what fraction of its TOC that explains**.
`idxd-container.md` and `idxd-tag-hash.md` own the hash (`name_hash` = a
checksum byte over a 24-bit modular value, case-insensitive, distinct from
`tag_hash`); neither says which archives are *reachable* by it. Artefact
`../data/archive-naming.txt`, regenerator `tools/re-capture/archive_naming.py`
(**6 027** candidate names × 16 prefixes).
## The result is bimodal
| archive | entries | named | |
|---|---:|---:|---|
| `GP_TITLE`, `GP_PAUSE_MENU`, `GP_STAGE_CLEAR`, `GP_CHALLENGE`, `GP_MOVIE_THEATER`, `GP_GAMEOVER`, `GP_BUNK`, `GP_SYSTEM`, `GP_TUTORIAL`, `MiscBin`, `fonts` | 2–151 | **all** | **100 %** |
| `tables.pak` | 79 | 78 | 98.7 % |
| `GP_DIALOG` | 140 | 139 | 99.3 % |
| `deu/eng/esp/fra/ita/jpn.pak` | 117 | 115 | 98.3 % |
| `GP_SAVE_LOAD` / `GP_LEADERBOARD` / `GP_OPTIONS` / `GP_MISSION_LOG` | 24–108 | | 91–94 % |
| `GP_MAIN_GAME_{D,E,F,I,J,S}` | 1 119 | 751 | 67.1 % |
| `GP_DEBRIEFING_PILOTLOG` | 234 | 78 | 33.3 % |
| `GP_HANGAR_ARSENAL` | 1 538 | 347 | 22.6 % |
| `DefTables` | 1 465 | 130 | 8.9 % |
| `GP_MISSION_SELECT` | 88 | 22 | 25.0 % |
| **`GP_READY_ROOM`** | **1 106** | **6** | **0.5 %** |
| **`GP_MAIN_GAME_{D,E,F,I,J,S}2D`** | **711** each | **0** | **0.0 %** |
| `sound.pak` | 9 519 | 1 | 0.0 % (a separate format — [sound-pak-contents](sound-pak-contents.md)) |
🔑 **The six 2D paks are at exactly 0.0 %, all six, 711 entries each** — while
eleven menu paks are at 100 % by the same method in the same run. That is the
control that makes it a finding rather than a failed guess: the method works, and
these archives are outside it.
🔑 **`GP_READY_ROOM` is a second such archive** — 1 106 entries, **6** named.
Not previously noted anywhere in `docs/re/`; it is the largest UI pak on the
disc and its names are as unreachable as the 2D paks'.
## What that means for the 419
The in-game HUD's asset paths are not "missing". **Nothing in the 2D paks is
reachable by name from the disc's own strings**, whatever the extension. So the
2D and READY_ROOM TOC keys are hashes of names that are **not written anywhere
we can read** — built by the tool chain, or from a string the executable
composes, or from a name list held outside these archives.
## 🧪 Also refuted here — 13 name transformations
Before the census, the 419 config values were re-hashed under 13 rewrites:
as-is, forward slashes, basename, basename without extension, without extension,
uppercased, `.rat` substituted, `2d\`/`eng\`/`hud\`/`GP_MAIN_GAME_2D\` prefixed,
and first-directory stripped. **Every one scored 0, both against the E2D pak's
711 entries and against all 16 630 entries on the disc.**
## 🟡 Not settled
* What names the 2D and `GP_READY_ROOM` TOCs actually hash. The one lever left is
the hash's own shape — the top byte is the character-sum checksum, so any
candidate is cheap to reject — but that needs a name corpus this disc does not
contain.
* Why `DefTables` (8.9 %) and `GP_HANGAR_ARSENAL` (22.6 %) sit in the middle;
probably just that most of their entries are tables referenced by records this
harvest does not treat as filenames. Not chased.