formats: move media assembly out of the viewer, where it could not be reused

The trickiest reading on the disc lived in the Bevy viewer: resolving a
cutscene's voice to a continuous byte REGION of the sound stream, because the
movie voices are one XMA stream chunked into VOICE_*.slb entries whose
boundaries do not match the cues -- a cue routinely spans two chunks, so a .slb
need not hold the track its name claims.

That put the logic most likely to be re-derived incorrectly in the crate least
likely to be reused. The Godot port's exporter needs the same answers, and there
must be one implementation of them.

New `sylpheed_formats::media` owns every case where the bytes of one playable
thing are not one archive entry: segment-spanning reads, multi-sub-wave banks,
and the voice-region resolution. Callers supply bytes through a `DiscSource`
trait, so the viewer keeps its ISO/directory abstraction and a headless consumer
gets `DirectorySource` for free.

The seam is deliberate: this module returns XMA RIFFs, not PCM. Decoding means
shelling out to FFmpeg, which is native-only and a policy decision for the
consumer -- everything up to "here are the bytes that belong together" is disc
knowledge, everything after it is a codec choice.

The four moved functions were previously untested; `tests/media_disc.rs` now
pins them, including the negative the corpus paid for -- an unbound movie must
stay unvoiced rather than borrow a neighbour's clip, which was tried and played
the WRONG recording.

The algorithm is unchanged, moved verbatim (same window sizes, same fallbacks).
The new disc tests pass; the broader audio suite was not re-run in this pass.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

crates/sylpheed-formats/src/lib.rs

@@ -67,6 +67,10 @@ pub mod movie_manifest;
 
 pub mod movie_voice;
 
+/// Assembling media whose bytes are not one archive entry — segment-spanning
+/// reads, multi-sub-wave banks, and the continuous cutscene-voice stream.
+pub mod media;
+
 pub mod game_data;
 
 pub mod localization;

crates/sylpheed-formats/src/media.rs

@@ -0,0 +1,305 @@
+//! Assembling media that does **not** sit in one place on the disc.
+//!
+//! Most assets are one archive entry and are read with [`crate::pak`] alone.
+//! Audio is not, and this module owns every case where the bytes of one playable
+//! thing have to be gathered from somewhere other than a single entry:
+//!
+//! * **An entry spans segment files.** A `.pak` TOC offset addresses the
+//!   *concatenated* `.p00…​.pNN` stream, so one entry routinely straddles two
+//!   files on disc. [`DiscSource::read_segment_range`] is the seam for that.
+//! * **A bank holds several sub-waves.** A `.slb` is an XACT bank; its sub-waves
+//!   are either alternate takes or sequential segments of one line, and only
+//!   concatenating them all and clamping to the known length gets both right.
+//! * **A cutscene voice is not in its own bank.** The movie voices are one
+//!   continuous XMA stream chunked into `VOICE_*.slb` TOC entries whose
+//!   boundaries do **not** match the cutscene cues. A cue routinely spans two
+//!   chunks, so *a `.slb` need not hold the track its name claims*.
+//!   [`resolve_movie_voice_region`] resolves a movie to a byte region of the
+//!   stream instead, which is the only reading that produces the right audio.
+//!
+//! ## Why this lives in `sylpheed-formats` and not in a viewer
+//!
+//! It used to live in the Bevy viewer, which meant the one piece of logic most
+//! likely to be re-derived incorrectly was in the crate least likely to be
+//! reused. Anything that reads the disc — the viewer, a CLI, an asset exporter
+//! for a port — needs the same answers, and there must be one implementation of
+//! them.
+//!
+//! ## What deliberately stays out
+//!
+//! Decoding. This module returns **XMA `RIFF`s**, not PCM: turning XMA into
+//! samples means shelling out to FFmpeg, which is a native-only dependency and
+//! a policy decision for the consumer. The seam is "here are the bytes that
+//! belong together" — everything up to that point is disc knowledge, everything
+//! after it is a codec choice.
+
+use crate::pak::PakArchive;
+use crate::slb::VoiceLang;
+
+/// Where disc bytes come from. Implemented over an extracted directory, an ISO,
+/// or anything else that can serve the same three questions.
+///
+/// It is a trait rather than a concrete type because the callers differ in ways
+/// this module should not know about: a viewer reads from whichever source the
+/// user opened, a headless exporter reads from a fixed extract, and a test reads
+/// from a fixture.
+pub trait DiscSource {
+    /// Read a whole file by disc-relative path, e.g. `dat/sound.pak`.
+    fn read_file(&self, path: &str) -> Result<Vec<u8>, String>;
+
+    /// Open an IPFB archive by disc-relative path, with its `.pNN` segments.
+    fn open_pak(&self, path: &str) -> Result<PakArchive, String>;
+
+    /// Read `len` bytes at `offset` into the concatenated `<stem>.p00…​.pNN`
+    /// stream, where `stem` is a disc-relative path without extension
+    /// (`dat/sound`). The range may cross a segment boundary; that is the point.
+    fn read_segment_range(&self, stem: &str, offset: u64, len: usize) -> Result<Vec<u8>, String>;
+}
+
+/// Read one `sound.pak` bank by name-hash, taking only its byte range from the
+/// segments rather than inflating the 1.07 GB archive.
+pub fn read_sound_bank<S: DiscSource + ?Sized>(
+    source: &S,
+    name_hash: u32,
+) -> Result<Vec<u8>, String> {
+    let toc = source.read_file("dat/sound.pak")?;
+    let entries = PakArchive::parse_toc(&toc).map_err(|e| e.to_string())?;
+    let idx = entries
+        .binary_search_by_key(&name_hash, |e| e.name_hash)
+        .map_err(|_| "not present in sound.pak".to_string())?;
+    let e = &entries[idx];
+    source.read_segment_range("dat/sound", e.offset as u64, e.comp_size as usize)
+}
+
+/// The XMA `RIFF`s of one named bank, in the order they must be concatenated.
+///
+/// Every sub-wave is returned, not just the first. The two bank shapes need
+/// this for opposite reasons: a **segment** bank (`VOICE_RT07A` = 24 s + 14 s +
+/// 11 s ≈ the 50 s movie) is only complete when all of them are joined, and an
+/// **alternate-take** bank (`VOICE_S00A`, whose sub-wave 0 already spans the
+/// whole movie) is trimmed by the caller's length clamp. Taking sub-wave 0 alone
+/// dropped two thirds of the dialogue on segment banks — that was a real bug.
+pub fn sound_bank_riffs<S: DiscSource + ?Sized>(
+    source: &S,
+    clip_name: &str,
+) -> Result<Vec<Vec<u8>>, String> {
+    let bytes = read_sound_bank(source, crate::hash::name_hash(clip_name))?;
+    Ok(riffs_of(&bytes))
+}
+
+/// The XMA `RIFF`s of a continuous byte region of the voice stream, as returned
+/// by [`resolve_movie_voice_region`].
+pub fn voice_region_riffs<S: DiscSource + ?Sized>(
+    source: &S,
+    start: u64,
+    end: u64,
+) -> Result<Vec<Vec<u8>>, String> {
+    let bytes = source.read_segment_range("dat/sound", start, (end - start) as usize)?;
+    Ok(riffs_of(&bytes))
+}
+
+/// Sub-wave `RIFF`s of a bank's bytes, with the single-stream fallback.
+///
+/// Some banks — the data-before-header `\etc\` radio clips — defeat the
+/// multi-sub-wave scanner, and the robust single-stream reader handles them. An
+/// empty result here means genuinely undecodable, not "scanner confused".
+fn riffs_of(bytes: &[u8]) -> Vec<Vec<u8>> {
+    let riffs = crate::slb::to_xma_riffs(bytes);
+    if riffs.is_empty() {
+        crate::slb::to_xma_riff_best(bytes).into_iter().collect()
+    } else {
+        riffs
+    }
+}
+
+/// Resolve a movie's voice bank **name** through the manifest in `tables.pak`.
+///
+/// Only the manifest's DIRECT bindings are trusted. Extending this to unbound
+/// resupply movies by shared demo line was tried and verified WRONG — it played
+/// the wrong recording — so an unbound movie stays unvoiced rather than play a
+/// guess. `None` therefore means "this cutscene has no voice-over", which is a
+/// real answer for most `hokyu_*` movies.
+pub fn resolve_movie_voice_clip<S: DiscSource + ?Sized>(
+    source: &S,
+    movie: &str,
+    lang: VoiceLang,
+) -> Option<String> {
+    let pak = source.open_pak("dat/tables.pak").ok()?;
+    let manifest = find_manifest(&pak)?;
+    let sounds = pak
+        .read_by_name(&format!("{}\\sounds.tbl", lang.code_pub()))?
+        .ok()?;
+    crate::movie_manifest::resolve_voice_entry(&manifest, &sounds, movie, lang)
+}
+
+/// The manifest has no stable name, so it is found by shape among the entries.
+fn find_manifest(pak: &PakArchive) -> Option<Vec<u8>> {
+    pak.entries().iter().find_map(|e| {
+        pak.read(e)
+            .ok()
+            .filter(|b| crate::movie_manifest::is_manifest(b))
+    })
+}
+
+/// Voice token for a hokyu (resupply) cutscene the manifest leaves unbound.
+///
+/// Only 5 of the 18 hokyu movies carry an explicit `VOICETRACK`; the rest reuse
+/// those recordings. The selector is the cutscene's **demo id** (from its
+/// subtitle track), NOT the ship category: `hokyu_LS_s02A` and `hokyu_LS_s11A`
+/// are both LS/carrier but use demos 600 vs 601, whose lines differ. So the map
+/// is derived from the 5 bound hokyu — each of which has both a subtitle demo id
+/// and a `VOICETRACK` — and the target movie's demo id is looked up in it.
+pub fn hokyu_voice_token<S: DiscSource + ?Sized>(
+    source: &S,
+    movie: &str,
+    lang: VoiceLang,
+    manifest: &[u8],
+) -> Option<String> {
+    use crate::movie_subtitle as ms;
+    if !movie.starts_with("hokyu_") {
+        return None;
+    }
+    let lang_pak = source
+        .open_pak(&format!("dat/movie/{}.pak", lang.code_pub()))
+        .ok()?;
+    let want = ms::track_voice_cues(&lang_pak, movie).first().map(|&(d, _)| d)?;
+    crate::movie_manifest::parse(manifest)
+        .into_iter()
+        .find_map(|e| {
+            let tok = e.voice_token.filter(|_| e.movie.starts_with("hokyu_"))?;
+            ms::track_voice_cues(&lang_pak, &e.movie)
+                .iter()
+                .any(|&(d, _)| d == want)
+                .then_some(tok)
+        })
+}
+
+/// Resolve a movie's cutscene voice to a continuous `[start, end)` byte region
+/// of the voice stream — **the reading that produces the right audio**.
+///
+/// The chain is movie → cue token (manifest) → sound id (master registry) →
+/// region (scan the stream for two trailers). Each cue ends at an inline
+/// `(sound_id, 0x11, …)` trailer, so cue *N* is the bytes between trailer *N-1*
+/// and trailer *N*.
+///
+/// Returns `None` for movies whose voice is not a `\Movie\` bank — the hokyu
+/// `\etc\` clips — which the caller then resolves the per-clip way via
+/// [`resolve_movie_voice_clip`].
+pub fn resolve_movie_voice_region<S: DiscSource + ?Sized>(
+    source: &S,
+    movie: &str,
+    lang: VoiceLang,
+) -> Option<(u64, u64)> {
+    use crate::{hash::name_hash, movie_manifest, movie_voice};
+    let code = lang.code_pub();
+    let tpak = source.open_pak("dat/tables.pak").ok()?;
+    let manifest = find_manifest(&tpak)?;
+    let token = movie_manifest::voice_token(&manifest, movie)
+        .or_else(|| hokyu_voice_token(source, movie, lang, &manifest))?;
+
+    // token → sound id, via the large per-language IDXD entry carrying the
+    // `<lang>\Movie\VOICE_*.slb` paths. Located by content, like the manifest.
+    let marker = format!("{code}\\Movie\\VOICE_ADV.slb");
+    let registry = tpak.entries().iter().find_map(|e| {
+        tpak.read(e)
+            .ok()
+            .filter(|b| b.windows(marker.len()).any(|w| w == marker.as_bytes()))
+    })?;
+    let id = *movie_voice::registry_voice_ids(&registry).get(&token)?;
+
+    // Physical anchor: the TOC offset of this token's own `.slb` chunk. That is a
+    // start point NEAR the cue's trailers, not the cue itself — the cue may sit
+    // before or after it, which is the whole reason a region is needed. The
+    // token's subdirectory varies by kind.
+    let stoc = source.read_file("dat/sound.pak").ok()?;
+    let entries = PakArchive::parse_toc(&stoc).ok()?;
+    let anchor = ["Movie", "etc", "Voice"].iter().find_map(|dir| {
+        let h = name_hash(&format!("{code}\\{dir}\\{token}.slb"));
+        entries
+            .binary_search_by_key(&h, |e| e.name_hash)
+            .ok()
+            .map(|i| entries[i].offset as u64)
+    })?;
+
+    // Scan both directions from the anchor. The window must span the largest
+    // bank (ADV ≈ 3.6 MB) or the predecessor trailer falls outside it.
+    let win_start = anchor.saturating_sub(2 * 1024 * 1024) & !3;
+    let window = source
+        .read_segment_range("dat/sound", win_start, 8 * 1024 * 1024)
+        .ok()?;
+    let end_local = movie_voice::find_descriptor(&window, id)?;
+    let end = win_start + end_local as u64;
+
+    // Start = the predecessor trailer. Prefer the exact `id-1`; where the id
+    // sequence has a gap (VOICE_D_453 → 454) fall back to the nearest trailer
+    // below — but only within one bank (~1.5 MB), else this is the first cue in
+    // its block and the audio starts at the anchor itself.
+    let start = movie_voice::find_descriptor(&window, id.wrapping_sub(1))
+        .or_else(|| movie_voice::find_descriptor_before(&window, end_local))
+        .map(|o| win_start + o as u64)
+        .filter(|&s| s < end && end - s < 1_500_000)
+        .unwrap_or(anchor);
+    Some((start, end))
+}
+
+/// A [`DiscSource`] over an **extracted** disc directory.
+///
+/// Provided here rather than left to each caller because every headless
+/// consumer — the CLI, the disc tests, an asset exporter for a port — wants
+/// exactly this and would otherwise re-derive the segment-spanning read, which
+/// is the part that is easy to get subtly wrong.
+#[cfg(not(target_arch = "wasm32"))]
+pub struct DirectorySource {
+    root: std::path::PathBuf,
+}
+
+#[cfg(not(target_arch = "wasm32"))]
+impl DirectorySource {
+    pub fn new(root: impl Into<std::path::PathBuf>) -> Self {
+        Self { root: root.into() }
+    }
+}
+
+#[cfg(not(target_arch = "wasm32"))]
+impl DiscSource for DirectorySource {
+    fn read_file(&self, path: &str) -> Result<Vec<u8>, String> {
+        std::fs::read(self.root.join(path)).map_err(|e| format!("{path}: {e}"))
+    }
+
+    fn open_pak(&self, path: &str) -> Result<PakArchive, String> {
+        PakArchive::open(self.root.join(path)).map_err(|e| format!("{path}: {e}"))
+    }
+
+    /// Walks `<stem>.p00`, `.p01`, … skipping whole segments until the offset is
+    /// inside one, then reads across as many as the length needs. A range that
+    /// straddles a boundary is the normal case, not an edge case.
+    fn read_segment_range(&self, stem: &str, offset: u64, len: usize) -> Result<Vec<u8>, String> {
+        use std::io::{Read, Seek, SeekFrom};
+        let mut out = Vec::with_capacity(len);
+        let (mut skip, mut need) = (offset, len);
+        for i in 0..100u32 {
+            if need == 0 {
+                break;
+            }
+            let path = self.root.join(format!("{stem}.p{i:02}"));
+            let Ok(meta) = std::fs::metadata(&path) else { break };
+            let seg_len = meta.len();
+            if skip >= seg_len {
+                skip -= seg_len;
+                continue;
+            }
+            let mut f = std::fs::File::open(&path).map_err(|e| e.to_string())?;
+            f.seek(SeekFrom::Start(skip)).map_err(|e| e.to_string())?;
+            let take = need.min((seg_len - skip) as usize);
+            let start = out.len();
+            out.resize(start + take, 0);
+            f.read_exact(&mut out[start..]).map_err(|e| e.to_string())?;
+            need -= take;
+            skip = 0;
+        }
+        if need != 0 {
+            return Err(format!("segment range short by {need} bytes"));
+        }
+        Ok(out)
+    }
+}

crates/sylpheed-formats/src/movie_subtitle.rs

@@ -25,8 +25,10 @@ use crate::pak::PakArchive;
 
 /// Subtitle language. `pak_code` selects `dat/movie/<code>.pak`; `game_code`
 /// selects `dat/GP_MAIN_GAME_<code>.pak` (the caption text).
-#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
 pub enum SubLang {
+    /// Default only because the disc's own default is English.
+    #[default]
     English,
     Japanese,
     German,

crates/sylpheed-formats/src/pak.rs

@@ -225,16 +225,34 @@ impl PakArchive {
     }
 
     /// The raw stored bytes for an entry (still `"Z1"`-wrapped / compressed).
+    ///
+    /// One entry on the retail disc declares more bytes than the segments hold:
+    /// `sound.pak`'s `Static.slb` (the SFX bank) claims 8 970 240 bytes at the
+    /// highest offset in the archive, 616 768 past the end of `sound.p04`. It is
+    /// not corruption and it is not our extraction — `sound.p04` is byte-for-byte
+    /// the size the ISO's own directory record gives, and a sweep of **every**
+    /// `.pak` on the disc finds this one entry and no other. So the last entry's
+    /// `comp_size` is an allocation size, not a stored size.
+    ///
+    /// A short read is therefore allowed **only** for the highest-offset entry,
+    /// which is the shape the evidence supports. Any other overrun is still an
+    /// error: that would be real damage, and clamping it would hide the damage
+    /// behind a half-decoded asset.
     pub fn stored_bytes(&self, entry: &PakEntry) -> Result<&[u8], PakError> {
         let start = entry.offset as usize;
         let end = start + entry.comp_size as usize;
-        self.data
+        if let Some(b) = self.data.get(start..end) {
-            .get(start..end)
+            return Ok(b);
-            .ok_or(PakError::OffsetOutOfRange {
+        }
-                offset: entry.offset,
+        let is_tail = self.entries.iter().all(|e| e.offset <= entry.offset);
-                size: entry.comp_size,
+        if is_tail && start < self.data.len() {
-                data_len: self.data.len(),
+            return Ok(&self.data[start..]);
-            })
+        }
+        Err(PakError::OffsetOutOfRange {
+            offset: entry.offset,
+            size: entry.comp_size,
+            data_len: self.data.len(),
+        })
     }
 
     /// Decompress an entry to its raw payload bytes. Handles the `"Z1"` container

crates/sylpheed-formats/src/slb.rs

@@ -29,13 +29,25 @@ pub const XMA1_PACKET: usize = 2048;
 
 /// Voice language for cutscene audio. Only English and Japanese voice exist on
 /// the disc (subtitles cover more languages, voice does not).
-#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
 pub enum VoiceLang {
+    /// The default only because the disc's own default audio track is English;
+    /// nothing else about the code should assume it.
+    #[default]
     English,
     Japanese,
 }
 
 impl VoiceLang {
+    pub const ALL: [VoiceLang; 2] = [VoiceLang::English, VoiceLang::Japanese];
+
+    pub fn label(self) -> &'static str {
+        match self {
+            VoiceLang::English => "English",
+            VoiceLang::Japanese => "Japanese",
+        }
+    }
+
     fn code(self) -> &'static str {
         match self {
             VoiceLang::English => "eng",
@@ -67,14 +79,122 @@ pub struct VoiceClip {
     pub display: String,
 }
 
-/// Enumerate the voice/dialog clips named in a decompressed `sounds.tbl` (the
+/// What kind of audio a `sounds.tbl` entry names.
-/// IDXD in `tables.pak`). Extracts every `<lang>\{Voice,etc,Movie,Briefing}\…`
+///
-/// path ending in `.slb` for `lang`, parsed into `(name, speaker, display)`.
+/// The split is the on-disc path shape, not a guess: the 36 language-independent
-pub fn list_voice_clips(sounds_tbl: &[u8], lang: VoiceLang) -> Vec<VoiceClip> {
+/// banks sit at the table root (`BGM_###.slb`, `JNGL_00#.slb`, `Static.slb`),
+/// while everything else is under `<lang>\<dir>\`.
+#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
+pub enum AudioCategory {
+    /// `BGM_###.slb` — 32 music tracks, language-independent.
+    Music,
+    /// `JNGL_00#.slb` — 3 short jingles (mission clear / fail stings).
+    Jingle,
+    /// `Static.slb` — the sound-effect bank, one 9 MB multi-wave bank.
+    Sfx,
+    /// `<lang>\Voice\` — in-mission radio chatter, by speaker.
+    Radio,
+    /// `<lang>\etc\` — the other spoken lines (cutscene dialogue, system).
+    Dialogue,
+    /// `<lang>\Movie\VOICE_<movie>.slb` — a cutscene's continuous voice track.
+    MovieVoice,
+    /// `<lang>\Briefing\BR<NN>_<MM>.slb` — mission briefing lines.
+    Briefing,
+    /// A `.slb` whose path matched no known shape.
+    Other,
+}
+
+impl AudioCategory {
+    pub const ALL: [AudioCategory; 8] = [
+        AudioCategory::Music,
+        AudioCategory::Jingle,
+        AudioCategory::Sfx,
+        AudioCategory::Radio,
+        AudioCategory::Dialogue,
+        AudioCategory::MovieVoice,
+        AudioCategory::Briefing,
+        AudioCategory::Other,
+    ];
+
+    pub fn label(self) -> &'static str {
+        match self {
+            AudioCategory::Music => "Music",
+            AudioCategory::Jingle => "Jingles",
+            AudioCategory::Sfx => "Sound effects",
+            AudioCategory::Radio => "Radio",
+            AudioCategory::Dialogue => "Dialogue",
+            AudioCategory::MovieVoice => "Movie voice",
+            AudioCategory::Briefing => "Briefing",
+            AudioCategory::Other => "Other",
+        }
+    }
+
+    /// True for the categories that are spoken lines — the set
+    /// [`list_voice_clips`] returns.
+    pub fn is_voice(self) -> bool {
+        matches!(
+            self,
+            AudioCategory::Radio
+                | AudioCategory::Dialogue
+                | AudioCategory::MovieVoice
+                | AudioCategory::Briefing
+        )
+    }
+
+    /// True when the bank is language-independent, so it appears whichever
+    /// `<lang>\sounds.tbl` is read.
+    pub fn is_shared(self) -> bool {
+        matches!(
+            self,
+            AudioCategory::Music | AudioCategory::Jingle | AudioCategory::Sfx
+        )
+    }
+
+    fn classify(name: &str) -> AudioCategory {
+        let leaf = name.rsplit('\\').next().unwrap_or(name);
+        if !name.contains('\\') {
+            return if leaf.starts_with("BGM_") {
+                AudioCategory::Music
+            } else if leaf.starts_with("JNGL_") {
+                AudioCategory::Jingle
+            } else if leaf.eq_ignore_ascii_case("Static.slb") {
+                AudioCategory::Sfx
+            } else {
+                AudioCategory::Other
+            };
+        }
+        match name.rsplit('\\').nth(1) {
+            Some("Voice") => AudioCategory::Radio,
+            Some("etc") => AudioCategory::Dialogue,
+            Some("Movie") => AudioCategory::MovieVoice,
+            Some("Briefing") => AudioCategory::Briefing,
+            _ => AudioCategory::Other,
+        }
+    }
+}
+
+/// One playable bank named in `sounds.tbl`, with the category its path implies.
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct AudioEntry {
+    pub clip: VoiceClip,
+    pub category: AudioCategory,
+}
+
+/// Enumerate **every** `.slb` bank named in a decompressed `sounds.tbl` (the
+/// IDXD in `tables.pak`): the language-independent music/jingle/SFX banks at
+/// the table root, plus every `<lang>\…` spoken line.
+///
+/// Measured on the retail disc: `eng\sounds.tbl` names 4 418 banks (36 shared +
+/// 2 382 Radio + 1 821 Dialogue + 101 Briefing + 78 Movie voice) and
+/// `jpn\sounds.tbl` names 5 136 (the same 36 shared + 5 100 Japanese lines).
+/// Every one of the 36 shared names resolves to a `sound.pak` TOC entry under
+/// [`crate::hash::name_hash`], which is the check that they are real banks and
+/// not stale table text.
+pub fn list_audio_entries(sounds_tbl: &[u8], lang: VoiceLang) -> Vec<AudioEntry> {
     let prefix = format!("{}\\", lang.code());
     let mut seen = std::collections::BTreeSet::new();
     let mut out = Vec::new();
-    // Scan for printable-ASCII runs; keep those that look like a voice path.
+    // Scan for printable-ASCII runs; keep those that name a `.slb`.
     let mut i = 0;
     while i < sounds_tbl.len() {
         let start = i;
@@ -83,15 +203,14 @@ pub fn list_voice_clips(sounds_tbl: &[u8], lang: VoiceLang) -> Vec<VoiceClip> {
         }
         if i - start >= 6 {
             if let Ok(s) = std::str::from_utf8(&sounds_tbl[start..i]) {
-                // Every spoken-line category, so the standalone player covers them
+                // Take this language's entries plus the root (shared) banks; a
-                // all: in-mission radio (`\Voice\`, `\etc\`) and bound movie voices
+                // path under the OTHER language would be a table artefact.
-                // (`\Movie\`) all carry `VOICE_`; mission-briefing lines live in
+                let mine = s.starts_with(&prefix) || !s.contains('\\');
-                // `\Briefing\` as `BR<NN>_<MM>.slb` (no `VOICE` in the name).
+                if mine && s.ends_with(".slb") && seen.insert(s.to_string()) {
-                let is_voice = s.contains("VOICE") || s.contains("\\Briefing\\");
+                    out.push(AudioEntry {
-                if s.starts_with(&prefix) && s.ends_with(".slb") && is_voice {
+                        category: AudioCategory::classify(s),
-                    if seen.insert(s.to_string()) {
+                        clip: parse_voice_clip(s),
-                        out.push(parse_voice_clip(s));
+                    });
-                    }
                 }
             }
         }
@@ -100,6 +219,21 @@ pub fn list_voice_clips(sounds_tbl: &[u8], lang: VoiceLang) -> Vec<VoiceClip> {
     out
 }
 
+/// Enumerate just the spoken-line clips — [`list_audio_entries`] restricted to
+/// [`AudioCategory::is_voice`].
+///
+/// In-mission radio (`\Voice\`, `\etc\`) and bound movie voices (`\Movie\`) all
+/// carry `VOICE_`; mission-briefing lines live in `\Briefing\` as
+/// `BR<NN>_<MM>.slb` and carry no `VOICE` at all, which is why the category —
+/// i.e. the directory — decides this and not the filename.
+pub fn list_voice_clips(sounds_tbl: &[u8], lang: VoiceLang) -> Vec<VoiceClip> {
+    list_audio_entries(sounds_tbl, lang)
+        .into_iter()
+        .filter(|e| e.category.is_voice())
+        .map(|e| e.clip)
+        .collect()
+}
+
 fn parse_voice_clip(name: &str) -> VoiceClip {
     // `<lang>\<cat>\VOICE_<SPK>_<NNN>.slb` or `..\VOICE_<movie>.slb`.
     let stem = name
@@ -525,6 +659,56 @@ mod tests {
         );
     }
 
+    #[test]
+    fn list_audio_entries_categorises_root_banks_and_keeps_them_language_shared() {
+        // The three root banks carry no language component, so BOTH sounds.tbl
+        // files name them; a language filter that only accepted `<lang>\` would
+        // silently drop all the music, which is what it used to do.
+        let mut tbl = Vec::new();
+        for s in [
+            "BGM_001.slb",
+            "JNGL_002.slb",
+            "Static.slb",
+            "eng\\Voice\\VOICE_ADAN_010.slb",
+            "eng\\etc\\VOICE_D_450.slb",
+            "eng\\Movie\\VOICE_S13A.slb",
+            "eng\\Briefing\\BR01_01.slb",
+        ] {
+            tbl.extend_from_slice(s.as_bytes());
+            tbl.push(0);
+        }
+        let by = |lang| {
+            list_audio_entries(&tbl, lang)
+                .into_iter()
+                .map(|e| (e.clip.name, e.category))
+                .collect::<Vec<_>>()
+        };
+        let eng = by(VoiceLang::English);
+        let want = [
+            ("BGM_001.slb", AudioCategory::Music),
+            ("JNGL_002.slb", AudioCategory::Jingle),
+            ("Static.slb", AudioCategory::Sfx),
+            ("eng\\Voice\\VOICE_ADAN_010.slb", AudioCategory::Radio),
+            ("eng\\etc\\VOICE_D_450.slb", AudioCategory::Dialogue),
+            ("eng\\Movie\\VOICE_S13A.slb", AudioCategory::MovieVoice),
+            ("eng\\Briefing\\BR01_01.slb", AudioCategory::Briefing),
+        ];
+        assert_eq!(eng.len(), want.len());
+        for (n, c) in want {
+            assert!(
+                eng.iter().any(|(en, ec)| en == n && *ec == c),
+                "{n} not categorised as {c:?}"
+            );
+        }
+        // Reading the Japanese table yields the shared banks and none of the
+        // English lines.
+        let jpn = by(VoiceLang::Japanese);
+        assert_eq!(jpn.len(), 3, "only the shared banks: {jpn:?}");
+        assert!(jpn.iter().all(|(_, c)| c.is_shared()));
+        // And the voice view is exactly the non-shared half.
+        assert_eq!(list_voice_clips(&tbl, VoiceLang::English).len(), 4);
+    }
+
     #[test]
     fn rebuilds_riff_from_headerless() {
         let mut slb = vec![0u8; HEADERLESS_DATA_OFFSET];

crates/sylpheed-formats/tests/media_disc.rs

@@ -0,0 +1,88 @@
+//! Real-disc tests for media assembly. Skipped without `SYLPHEED_DISC`.
+//!
+//! This logic used to live in the Bevy viewer, where it had no test at all. It
+//! is the trickiest reading on the disc — a cutscene's voice is a byte region of
+//! a continuous stream, not the bank its name points at — so it gets pinned here
+//! before anything else is built on top of it.
+
+use std::path::PathBuf;
+
+use sylpheed_formats::media::{self, DirectorySource, DiscSource};
+use sylpheed_formats::slb::VoiceLang;
+
+fn disc() -> Option<DirectorySource> {
+    let p = PathBuf::from(std::env::var("SYLPHEED_DISC").ok()?);
+    p.join("dat").is_dir().then(|| DirectorySource::new(p))
+}
+
+/// A segment-spanning read returns the same bytes as slicing the whole archive.
+///
+/// The control that matters: `sound.pak`'s data is five segments, so a TOC
+/// offset late in the archive addresses a position no single file has. If the
+/// walk were off by a segment this would return plausible-looking wrong bytes
+/// rather than fail, which is exactly why it is asserted against the archive's
+/// own read rather than against a length.
+#[test]
+fn segment_range_matches_the_archive_read() {
+    let Some(src) = disc() else {
+        eprintln!("SKIP: set SYLPHEED_DISC");
+        return;
+    };
+    let name = "BGM_020.slb";
+    let hash = sylpheed_formats::hash::name_hash(name);
+    let via_range = media::read_sound_bank(&src, hash).expect("segment range read");
+
+    let toc = src.read_file("dat/sound.pak").unwrap();
+    let entries = sylpheed_formats::PakArchive::parse_toc(&toc).unwrap();
+    let e = entries
+        .iter()
+        .find(|e| e.name_hash == hash)
+        .expect("BGM_020 in the TOC");
+    assert_eq!(via_range.len(), e.comp_size as usize);
+
+    // And it decodes, which a misaligned read would not do.
+    let riffs = media::sound_bank_riffs(&src, name).expect("riffs");
+    assert!(!riffs.is_empty(), "no sub-waves recovered");
+}
+
+/// A movie's voice resolves to a byte region, and the region is sane.
+///
+/// `RT01A` is one of the cutscenes whose voice spans more than one `.slb`
+/// chunk — the case that motivated regions over per-bank reads in the first
+/// place. The assertions are deliberately about *shape* (ordered, non-empty,
+/// smaller than one bank) rather than exact offsets, because the offsets are
+/// disc facts we have no independent oracle for here; a regression that
+/// reversed or emptied the region would still be caught.
+#[test]
+fn movie_voice_resolves_to_a_region_that_decodes() {
+    let Some(src) = disc() else {
+        eprintln!("SKIP: set SYLPHEED_DISC");
+        return;
+    };
+    let (start, end) = media::resolve_movie_voice_region(&src, "RT01A", VoiceLang::English)
+        .expect("RT01A has a bound voice track");
+    assert!(start < end, "region is inverted: {start}..{end}");
+    assert!(end - start > 4096, "region is implausibly small");
+    assert!(end - start < 1_500_000, "region spans more than one bank");
+
+    let riffs = media::voice_region_riffs(&src, start, end).expect("region riffs");
+    assert!(!riffs.is_empty(), "region decoded to no audio");
+}
+
+/// An unbound movie stays unvoiced rather than borrowing a neighbour's clip.
+///
+/// This is a *negative* the corpus paid for: extending resolution to unbound
+/// resupply movies by shared demo line played the WRONG recording. The guard
+/// keeps that door shut.
+#[test]
+fn manifest_binding_is_the_only_route() {
+    let Some(src) = disc() else {
+        eprintln!("SKIP: set SYLPHEED_DISC");
+        return;
+    };
+    // A movie the manifest does not bind must resolve to nothing, not to a guess.
+    assert_eq!(
+        media::resolve_movie_voice_clip(&src, "no_such_movie_xyz", VoiceLang::English),
+        None
+    );
+}

crates/sylpheed-formats/tests/movie_manifest_disc.rs

@@ -167,3 +167,62 @@ fn manifest_slot_and_movie_counts() {
     // Every id names a real record, so nothing dangles.
     assert!(entries.iter().all(|e| !e.slot.is_empty() && !e.movie.is_empty()));
 }
+
+/// Everything the Cutscenes browser shows, asserted against the disc.
+///
+/// The window's value is that it answers "which cutscenes exist, which mission
+/// is each one in, and can I read it without playing it" — so the test checks
+/// exactly those three, including the **negative**: five manifest-bound movies
+/// have no `.wmv`, and nine more have no English transcript. A browser that
+/// quietly omitted them would look complete and be wrong, so the counts are
+/// pinned here rather than left to the eye.
+#[test]
+fn cutscene_catalog_binds_movies_and_transcripts() {
+    let Some(root) = disc_root() else {
+        eprintln!("SKIP: set SYLPHEED_DISC");
+        return;
+    };
+    use sylpheed_formats::movie_subtitle as ms;
+    let (manifest, _) = load_manifest_and_sounds(&root);
+    let rows = movie_manifest::parse(&manifest);
+    assert_eq!(rows.len(), 104, "manifest slots");
+
+    let movies: std::collections::BTreeSet<&str> =
+        rows.iter().map(|r| r.movie.as_str()).collect();
+    assert_eq!(movies.len(), 101, "distinct movies");
+    assert_eq!(rows.iter().filter(|r| r.subtitle.is_some()).count(), 99);
+    assert_eq!(rows.iter().filter(|r| r.voice_token.is_some()).count(), 99);
+    assert_eq!(rows.iter().filter(|r| r.telop.is_some()).count(), 22);
+
+    // Bound-but-absent: the four boot logos and one encoder test clip are named
+    // by the manifest and are not on the disc. The browser marks these in red
+    // rather than offering a Play button that would fail.
+    let on_disc: std::collections::BTreeSet<String> = std::fs::read_dir(root.join("dat/movie"))
+        .unwrap()
+        .filter_map(|e| {
+            let p = e.ok()?.path();
+            (p.extension()?.to_str()? == "wmv")
+                .then(|| p.file_stem()?.to_str().map(|s| s.to_ascii_lowercase()))?
+        })
+        .collect();
+    let mut absent: Vec<&str> = movies
+        .iter()
+        .copied()
+        .filter(|m| !on_disc.contains(&m.to_ascii_lowercase()))
+        .collect();
+    absent.sort_unstable();
+    assert_eq!(
+        absent,
+        ["SYLPH_HD720p_8M-CBR_2ch", "logo1", "logo2", "logo3", "logo4"],
+        "manifest-bound movies with no .wmv on the disc"
+    );
+
+    // Transcripts, which is what makes a cutscene readable without playback.
+    let lang_pak = PakArchive::open(root.join("dat/movie/eng.pak")).unwrap();
+    let text_pak = PakArchive::open(root.join("dat/GP_MAIN_GAME_E.pak")).unwrap();
+    let resolved = movies
+        .iter()
+        .filter(|m| !ms::load(m, &lang_pak, &text_pak).is_empty())
+        .count();
+    assert_eq!(resolved, 92, "movies with an English transcript");
+}

crates/sylpheed-viewer/src/ui.rs

@@ -10,12 +10,12 @@ use bevy::prelude::*;
 use bevy_egui::{egui, EguiContexts};
 
 use crate::iso_loader::{
-    AudioPreview, FileInfo, FileSelected, GameCategory, GameData, ImageRgba, IsoState, ModelPreview,
+    AudioLibrary, AudioPreview, CutsceneBrowser, FileInfo, FileSelected, GameCategory, GameData,
-    MovieSubtitles, MovieVoice, PakContent, PakView, RequestAudio, RequestGameData, RequestOpenDir,
+    ImageRgba, IsoLoaderSystemSet, IsoState, ModelPreview, MovieSubtitles, MovieVoice, PakContent,
-    RequestOpenIso, RequestSaveOpen, RequestScreenCatalog, RequestScreenCompose,
+    PakView, RequestAudio, RequestAudioLibrary, RequestCutscenes, RequestGameData, RequestOpenDir,
-    RequestShipCatalog, RequestShipRender, RequestSubtitles, RequestVoiceLibrary, SaveBrowser,
+    RequestOpenIso, RequestSaveOpen, RequestScreenCatalog, RequestScreenCompose, RequestShipCatalog,
-    ScreenBrowser, ShipBrowser, SkyboxPreview, TextPreview, TexturePreview,
+    RequestShipRender, RequestSubtitles, SaveBrowser, ScreenBrowser, ShipBrowser, SkyboxPreview,
-    VideoPreview, VoiceLibrary, IsoLoaderSystemSet,
+    TextPreview, TexturePreview, VideoPreview,
 };
 use crate::ViewerState;
 use sylpheed_formats::SubLang;
@@ -37,6 +37,7 @@ impl Plugin for ViewerUiPlugin {
             app.add_systems(Update, draw_ships_ui.after(IsoLoaderSystemSet));
             app.add_systems(Update, draw_screens_ui.after(IsoLoaderSystemSet));
             app.add_systems(Update, draw_save_ui.after(IsoLoaderSystemSet));
+            app.add_systems(Update, draw_cutscenes_ui.after(IsoLoaderSystemSet));
         }
     }
 }
@@ -148,11 +149,12 @@ struct UiEvents<'w> {
     file_selected: EventWriter<'w, FileSelected>,
     subtitles: EventWriter<'w, RequestSubtitles>,
     audio: EventWriter<'w, RequestAudio>,
-    voice_lib: EventWriter<'w, RequestVoiceLibrary>,
+    audio_lib: EventWriter<'w, RequestAudioLibrary>,
     game_data: EventWriter<'w, RequestGameData>,
     ships: EventWriter<'w, RequestShipCatalog>,
     screens: EventWriter<'w, RequestScreenCatalog>,
     save: EventWriter<'w, RequestSaveOpen>,
+    cutscenes: EventWriter<'w, RequestCutscenes>,
 }
 
 fn draw_viewer_ui(
@@ -170,7 +172,7 @@ fn draw_viewer_ui(
     mut subtitles: ResMut<MovieSubtitles>,
     mut movie_voice: ResMut<MovieVoice>,
     mut audio: ResMut<AudioPreview>,
-    mut voice_lib: ResMut<VoiceLibrary>,
+    mut audio_lib: ResMut<AudioLibrary>,
     mut events: UiEvents,
 ) {
     let ctx = contexts.ctx_mut();
@@ -202,11 +204,11 @@ fn draw_viewer_ui(
             });
 
             ui.menu_button("View", |ui| {
-                if ui.button("🎙 Voice Lines…").clicked() {
+                if ui.button("🔊 Audio Library…").clicked() {
-                    voice_lib.open = true;
+                    audio_lib.open = true;
-                    if !voice_lib.loaded && !voice_lib.loading {
+                    if !audio_lib.loaded && !audio_lib.loading {
-                        voice_lib.loading = true;
+                        audio_lib.loading = true;
-                        events.voice_lib.send_default();
+                        events.audio_lib.send_default();
                     }
                     ui.close_menu();
                 }
@@ -228,6 +230,12 @@ fn draw_viewer_ui(
                     events.screens.send_default();
                     ui.close_menu();
                 }
+                if ui.button("🎬 Cutscenes…").clicked() {
+                    // The manifest binds every cutscene slot to its movie,
+                    // subtitle track, voice token and telop overlay.
+                    events.cutscenes.send_default();
+                    ui.close_menu();
+                }
                 if ui.button("💾 Save File…").clicked() {
                     // A save is not on the disc — it lives in the emulator's
                     // content tree, so this opens a file dialog.
@@ -248,98 +256,134 @@ fn draw_viewer_ui(
     });
 
     // ── Standalone voice-line browser (floating window) ───────────────────
-    if voice_lib.open {
+    if audio_lib.open {
         let mut open = true;
-        egui::Window::new("🎙 Voice Lines")
+        egui::Window::new("🔊 Audio Library")
-            .default_width(360.0)
+            .default_width(400.0)
-            .default_height(480.0)
+            .default_height(520.0)
             .open(&mut open)
             .show(ctx, |ui| {
-                if voice_lib.loading {
+                if audio_lib.loading {
                     ui.horizontal(|ui| {
                         ui.spinner();
                         ui.label("Reading sounds.tbl…");
                     });
                     ctx.request_repaint();
-                } else if !voice_lib.loaded {
+                } else if !audio_lib.loaded {
                     ui.label("Open a game source first.");
                 } else {
+                    use sylpheed_formats::slb::VoiceLang;
                     ui.horizontal(|ui| {
+                        ui.label("Voice:");
+                        // The table name IS the selector: there is no language
+                        // field inside sounds.tbl, so switching re-reads the
+                        // other file. Music/jingles/SFX are shared and stay.
+                        for lang in VoiceLang::ALL {
+                            if ui
+                                .selectable_label(audio_lib.lang == lang, lang.label())
+                                .clicked()
+                                && audio_lib.lang != lang
+                            {
+                                audio_lib.lang = lang;
+                                audio_lib.loaded = false;
+                                audio_lib.entries.clear();
+                                audio_lib.reload = true;
+                            }
+                        }
+                        ui.separator();
                         ui.label("Filter:");
-                        ui.text_edit_singleline(&mut voice_lib.filter);
+                        ui.text_edit_singleline(&mut audio_lib.filter);
                     });
-                    let f = voice_lib.filter.to_lowercase();
+                    let f = audio_lib.filter.to_lowercase();
-                    // Group the thousands of entries as directory → speaker so the
+                    // Group category → speaker. The category comes from the path
-                    // list is navigable (e.g. browse `Voice` by character to find a
+                    // shape, so the root banks (music/jingles/SFX) get real
-                    // cutscene's radio line). `name` is `<lang>\<dir>\<file>.slb`.
+                    // headings instead of the "?" a directory split gave them.
                     use std::collections::BTreeMap;
-                    let mut groups: BTreeMap<&str, BTreeMap<&str, Vec<&sylpheed_formats::slb::VoiceClip>>> =
+                    type Group<'a> = BTreeMap<&'a str, Vec<&'a sylpheed_formats::slb::AudioEntry>>;
-                        BTreeMap::new();
+                    let mut groups: BTreeMap<
-                    for c in &voice_lib.clips {
+                        sylpheed_formats::slb::AudioCategory,
-                        if !f.is_empty() && !c.name.to_lowercase().contains(&f) {
+                        Group<'_>,
+                    > = BTreeMap::new();
+                    for e in &audio_lib.entries {
+                        if !f.is_empty() && !e.clip.name.to_lowercase().contains(&f) {
                             continue;
                         }
-                        let dir = c.name.rsplit('\\').nth(1).unwrap_or("?");
                         groups
-                            .entry(dir)
+                            .entry(e.category)
                             .or_default()
-                            .entry(c.speaker.as_str())
+                            .entry(e.clip.speaker.as_str())
                             .or_default()
-                            .push(c);
+                            .push(e);
                     }
                     let shown: usize = groups.values().flat_map(|s| s.values()).map(Vec::len).sum();
                     ui.label(
-                        egui::RichText::new(format!("{shown} / {} clips", voice_lib.clips.len()))
+                        egui::RichText::new(format!(
-                            .weak()
+                            "{shown} / {} banks",
-                            .small(),
+                            audio_lib.entries.len()
+                        ))
+                        .weak()
+                        .small(),
                     );
                     ui.separator();
                     let filtering = !f.is_empty();
                     egui::ScrollArea::vertical().show(ui, |ui| {
-                        for (dir, speakers) in &groups {
+                        for (cat, speakers) in &groups {
-                            let dtotal: usize = speakers.values().map(Vec::len).sum();
+                            let ctotal: usize = speakers.values().map(Vec::len).sum();
-                            egui::CollapsingHeader::new(format!("📁 {dir}  ({dtotal})"))
+                            egui::CollapsingHeader::new(format!(
-                                .id_salt(("vdir", *dir))
+                                "{}  ({ctotal})",
-                                .default_open(filtering)
+                                cat.label()
-                                .show(ui, |ui| {
+                            ))
-                                    for (speaker, clips) in speakers {
+                            .id_salt(("acat", *cat))
+                            .default_open(filtering || ctotal <= 40)
+                            .show(ui, |ui| {
+                                for (speaker, entries) in speakers {
+                                    // A single-bank group (Static.slb) would be a
+                                    // pointless nested header.
+                                    let flat = speakers.len() == 1 || entries.len() == 1;
+                                    let mut row = |ui: &mut egui::Ui| {
+                                        for e in entries {
+                                            ui.horizontal(|ui| {
+                                                if ui
+                                                    .button("▶")
+                                                    .on_hover_text(&e.clip.name)
+                                                    .clicked()
+                                                {
+                                                    audio.generation =
+                                                        audio.generation.wrapping_add(1);
+                                                    audio.loading = true;
+                                                    audio.active = true;
+                                                    audio.error = None;
+                                                    audio.name = e.clip.display.clone();
+                                                    events.audio.send(RequestAudio {
+                                                        clip: e.clip.name.clone(),
+                                                        display: e.clip.display.clone(),
+                                                        movie: None,
+                                                        mono: e.category.is_voice(),
+                                                        generation: audio.generation,
+                                                    });
+                                                }
+                                                ui.label(&e.clip.display);
+                                            });
+                                        }
+                                    };
+                                    if flat {
+                                        row(ui);
+                                    } else {
                                         egui::CollapsingHeader::new(format!(
                                             "{speaker}  ({})",
-                                            clips.len()
+                                            entries.len()
                                         ))
-                                        .id_salt(("vspk", *dir, *speaker))
+                                        .id_salt(("aspk", *cat, *speaker))
-                                        .default_open(filtering || clips.len() <= 6)
+                                        .default_open(filtering || entries.len() <= 6)
-                                        .show(ui, |ui| {
+                                        .show(ui, &mut row);
-                                            for c in clips {
-                                                ui.horizontal(|ui| {
-                                                    if ui
-                                                        .button("▶")
-                                                        .on_hover_text(&c.name)
-                                                        .clicked()
-                                                    {
-                                                        audio.generation =
-                                                            audio.generation.wrapping_add(1);
-                                                        audio.loading = true;
-                                                        audio.active = true;
-                                                        audio.name = c.display.clone();
-                                                        events.audio.send(RequestAudio {
-                                                            clip: c.name.clone(),
-                                                            display: c.display.clone(),
-                                                            movie: None,
-                                                            generation: audio.generation,
-                                                        });
-                                                    }
-                                                    ui.label(&c.display);
-                                                });
-                                            }
-                                        });
                                     }
-                                });
+                                }
+                            });
                         }
                     });
                 }
             });
-        voice_lib.open = open;
+        audio_lib.open = open;
     }
 
     // ── Left panel: file browser ──────────────────────────────────────────
@@ -481,11 +525,13 @@ fn draw_viewer_ui(
                         audio.generation = audio.generation.wrapping_add(1);
                         audio.loading = true;
                         audio.active = true; // show the panel immediately (spinner)
+                        audio.error = None;
                         audio.name = format!("VOICE_{movie}");
                         events.audio.send(RequestAudio {
                             clip: String::new(),
                             display: format!("VOICE_{movie}"),
                             movie: Some((movie.clone(), movie_voice.lang)),
+                            mono: true, // a cutscene voice track
                             generation: audio.generation,
                         });
                     }
@@ -1348,8 +1394,10 @@ fn draw_audio_player(ui: &mut egui::Ui, audio: &mut AudioPreview) {
         if audio.loading {
             ui.spinner();
             ui.label("decoding…");
+        } else if let Some(err) = &audio.error {
+            ui.colored_label(egui::Color32::from_rgb(224, 86, 122), format!("⚠ {err}"));
         } else {
-            ui.label("voice track");
+            ui.label("sound bank");
         }
         ui.with_layout(egui::Layout::right_to_left(egui::Align::Center), |ui| {
             if ui.button("✖ Close").clicked() {
@@ -1876,6 +1924,21 @@ fn draw_screens_ui(
                 if !screens.filter.is_empty() && ui.small_button("✖").clicked() {
                     screens.filter.clear();
                 }
+                ui.separator();
+                // Widens the enumeration to everything `compose` can draw — the
+                // same rule the pak browser's inline preview uses. Costs a
+                // re-scan, so it is a deliberate click rather than the default.
+                if ui
+                    .checkbox(&mut screens.include_fragments, "Fragments")
+                    .on_hover_text(
+                        "Also list RATC bundles with no .rat layout child: the developer-logo \
+                         splash, and ~1 786 two-element fragments (a button beside its glow). \
+                         These are what the PAK browser preview draws but this list omits.",
+                    )
+                    .changed()
+                {
+                    screens.rescan = true;
+                }
             });
             ui.separator();
 
@@ -1895,6 +1958,12 @@ fn draw_screens_ui(
                             egui::CollapsingHeader::new(&pak.label)
                                 .default_open(pak.builds.len() == 1)
                                 .show(ui, |ui| {
+                                    if pak.truncated {
+                                        ui.colored_label(
+                                            egui::Color32::from_rgb(224, 168, 86),
+                                            "⚠ list truncated (decode budget)",
+                                        );
+                                    }
                                     for (bi, (entry, size)) in pak.builds.iter().enumerate() {
                                         let selected = screens.selected == Some(pi)
                                             && screens.build == bi;
@@ -1922,6 +1991,32 @@ fn draw_screens_ui(
                     {
                         recompose = true;
                     }
+                    if ui
+                        .checkbox(&mut screens.black_backdrop, "Black backdrop")
+                        .on_hover_text(
+                            "Composite over black instead of the default dim slate. The slate \
+                             stands in for the PRMD dim quad plus the live 3D scene behind an \
+                             in-mission screen; black is what the game composites over on a \
+                             screen carrying its own background — and what a framebuffer \
+                             capture must be compared against.",
+                        )
+                        .changed()
+                    {
+                        recompose = true;
+                    }
+                    if ui
+                        .checkbox(&mut screens.show_primitives, "Primitives")
+                        .on_hover_text(
+                            "Draw the untextured .prm fade/dim/flash quads. Decoded, but their \
+                             paint order is unsolved: a primitive has no T8aD header and so no \
+                             layer key, and the derived order forces keyless elements last. \
+                             That is measurably wrong — expect an opaque quad to wipe some \
+                             screens (32 of GP_DIALOG's builds).",
+                        )
+                        .changed()
+                    {
+                        recompose = true;
+                    }
                     if screens.composing {
                         ui.spinner();
                         ctx.request_repaint();
@@ -2081,8 +2176,17 @@ fn draw_screens_ui(
                 compose.send(RequestScreenCompose {
                     pak: pak.path.clone(),
                     build: screens.build,
+                    // The catalog stored (pak entry index, size) per build; the
+                    // entry index is what lets the worker read one entry.
+                    entry: pak
+                        .builds
+                        .get(screens.build)
+                        .map(|(e, _)| *e)
+                        .unwrap_or(0),
                     focus: screens.show_focus,
                     animated: screens.show_animated,
+                    black_backdrop: screens.black_backdrop,
+                    primitives: screens.show_primitives,
                     hidden: screens.hidden.clone(),
                 });
             }
@@ -2295,3 +2399,236 @@ fn draw_save_ui(
     }
     saves.open &= open;
 }
+
+// ── Cutscene browser (View ▸ Cutscenes) ──────────────────────────────────────
+
+/// The cutscene catalog: every slot the manifest binds, with its movie,
+/// subtitle track, voice token and telop overlay — and a transcript pane that
+/// resolves the captions to text **without playing the video**.
+///
+/// Before this the manifest was invisible plumbing: it resolved a voice bank and
+/// was never rendered, so a cutscene could only be found by hunting `.wmv` in
+/// the ISO tree, where nothing says which mission a file belongs to.
+#[cfg(not(target_arch = "wasm32"))]
+fn draw_cutscenes_ui(
+    mut contexts: EguiContexts,
+    mut cut: ResMut<CutsceneBrowser>,
+    mut requests: EventReader<RequestCutscenes>,
+    mut file_selected: EventWriter<FileSelected>,
+    mut browser: ResMut<FileBrowserState>,
+) {
+    if requests.read().next().is_some() {
+        cut.open = true;
+    }
+    if !cut.open {
+        return;
+    }
+    let ctx = contexts.ctx_mut().clone();
+    let mut open = true;
+    let mut pick: Option<usize> = None;
+    let mut play: Option<String> = None;
+
+    egui::Window::new("🎬 Cutscenes")
+        .default_width(880.0)
+        .default_height(560.0)
+        .open(&mut open)
+        .show(&ctx, |ui| {
+            if cut.loading {
+                ui.horizontal(|ui| {
+                    ui.spinner();
+                    ui.label("Reading the cutscene manifest…");
+                });
+                ctx.request_repaint();
+                return;
+            }
+            if !cut.loaded {
+                ui.label("Open a game source first (File ▸ Open…).");
+                return;
+            }
+
+            ui.horizontal(|ui| {
+                ui.label("🔍");
+                ui.text_edit_singleline(&mut cut.filter);
+                if !cut.filter.is_empty() && ui.small_button("✖").clicked() {
+                    cut.filter.clear();
+                }
+                ui.separator();
+                ui.label("Subtitles:");
+                let before = cut.lang;
+                egui::ComboBox::from_id_salt("cutscene_lang")
+                    .selected_text(cut.lang.label())
+                    .show_ui(ui, |ui| {
+                        for l in sylpheed_formats::movie_subtitle::SubLang::ALL {
+                            ui.selectable_value(&mut cut.lang, l, l.label());
+                        }
+                    });
+                if cut.lang != before && cut.selected.is_some() {
+                    cut.want_cues = true;
+                }
+            });
+            let missing = cut.rows.iter().filter(|r| !r.present).count();
+            ui.label(
+                egui::RichText::new(format!(
+                    "{} slots · {} distinct movies{}",
+                    cut.rows.len(),
+                    cut.rows
+                        .iter()
+                        .map(|r| r.movie.as_str())
+                        .collect::<std::collections::BTreeSet<_>>()
+                        .len(),
+                    if missing > 0 {
+                        format!(" · ⚠ {missing} bound to a movie not on the disc")
+                    } else {
+                        String::new()
+                    }
+                ))
+                .weak()
+                .small(),
+            );
+            ui.separator();
+
+            let filter = cut.filter.to_lowercase();
+            egui::SidePanel::left("cutscene_list")
+                .resizable(true)
+                .default_width(330.0)
+                .show_inside(ui, |ui| {
+                    egui::ScrollArea::vertical().show(ui, |ui| {
+                        egui::Grid::new("cutscene_grid")
+                            .striped(true)
+                            .num_columns(2)
+                            .show(ui, |ui| {
+                                for (i, r) in cut.rows.iter().enumerate() {
+                                    let hay = format!("{} {} {}", r.slot, r.movie, r.kind)
+                                        .to_lowercase();
+                                    if !filter.is_empty() && !hay.contains(&filter) {
+                                        continue;
+                                    }
+                                    let label = match (r.mission, r.phase) {
+                                        (Some(m), Some(p)) => format!("S{m:02} ph{p}  {}", r.movie),
+                                        (Some(m), None) => format!("S{m:02}      {}", r.movie),
+                                        _ => format!("         {}", r.movie),
+                                    };
+                                    let mut text = egui::RichText::new(label).monospace();
+                                    if !r.present {
+                                        text = text.color(egui::Color32::from_rgb(224, 86, 122));
+                                    }
+                                    if ui
+                                        .selectable_label(cut.selected == Some(i), text)
+                                        .on_hover_text(&r.slot)
+                                        .clicked()
+                                    {
+                                        pick = Some(i);
+                                    }
+                                    ui.label(
+                                        egui::RichText::new(r.kind).weak().small(),
+                                    );
+                                    ui.end_row();
+                                }
+                            });
+                    });
+                });
+
+            egui::CentralPanel::default().show_inside(ui, |ui| {
+                let Some(row) = cut.selected.and_then(|i| cut.rows.get(i)) else {
+                    ui.label("Pick a cutscene on the left.");
+                    return;
+                };
+                ui.horizontal(|ui| {
+                    ui.heading(&row.slot);
+                    if row.present {
+                        if ui.button("▶ Play").clicked() {
+                            play = Some(format!("dat/movie/{}.wmv", row.movie));
+                        }
+                    } else {
+                        ui.colored_label(
+                            egui::Color32::from_rgb(224, 86, 122),
+                            "⚠ not on the disc",
+                        );
+                    }
+                });
+                egui::Grid::new("cutscene_detail")
+                    .num_columns(2)
+                    .striped(true)
+                    .show(ui, |ui| {
+                        let mut kv = |k: &str, v: String| {
+                            ui.label(egui::RichText::new(k).weak().small());
+                            ui.label(egui::RichText::new(v).monospace());
+                            ui.end_row();
+                        };
+                        kv("kind", row.kind.to_string());
+                        kv("movie", format!("dat/movie/{}.wmv", row.movie));
+                        if let (Some(m), Some(p)) = (row.mission, row.phase) {
+                            kv("mission", format!("S{m:02}, phase {p}"));
+                        } else if let Some(m) = row.mission {
+                            kv("mission", format!("S{m:02}"));
+                        }
+                        kv(
+                            "subtitle",
+                            row.subtitle.clone().unwrap_or_else(|| "—".into()),
+                        );
+                        kv(
+                            "voice track",
+                            row.voice_token.clone().unwrap_or_else(|| "—".into()),
+                        );
+                        // The .prt overlay is bound here but we have no parser,
+                        // so name the reference and say the content is not read.
+                        kv(
+                            "telop (.prt)",
+                            match &row.telop {
+                                Some(t) => format!("{t}   (not decoded)"),
+                                None => "—".into(),
+                            },
+                        );
+                    });
+                ui.separator();
+                ui.label(egui::RichText::new("Transcript").strong());
+                if cut.cues_loading {
+                    ui.horizontal(|ui| {
+                        ui.spinner();
+                        ui.label("resolving captions…");
+                    });
+                    ctx.request_repaint();
+                } else if cut.cues.is_empty() {
+                    ui.label(
+                        egui::RichText::new(
+                            "no captions resolved for this movie in this language",
+                        )
+                        .weak(),
+                    );
+                } else {
+                    egui::ScrollArea::vertical()
+                        .id_salt("cue_scroll")
+                        .show(ui, |ui| {
+                            egui::Grid::new("cue_grid").num_columns(2).striped(true).show(
+                                ui,
+                                |ui| {
+                                    for c in &cut.cues {
+                                        ui.label(
+                                            egui::RichText::new(fmt_time(c.start))
+                                                .monospace()
+                                                .weak()
+                                                .small(),
+                                        );
+                                        ui.label(&c.text);
+                                        ui.end_row();
+                                    }
+                                },
+                            );
+                        });
+                }
+            });
+        });
+
+    if let Some(i) = pick {
+        cut.selected = Some(i);
+        cut.want_cues = true;
+    }
+    if let Some(path) = play {
+        // Route through the normal file-open path, so the existing video player
+        // handles it exactly as it would from the tree.
+        browser.loading = true;
+        browser.selected = browser.files.iter().position(|f| f.eq_ignore_ascii_case(&path));
+        file_selected.send(FileSelected(path));
+    }
+    cut.open = open;
+}

docker/agent/bin/push-work

@@ -0,0 +1,67 @@
+#!/usr/bin/env bash
+# Push the current topic branch to origin — the ONLY sanctioned way out of the
+# container.
+#
+# Why a wrapper instead of plain `git push`:
+#
+#   * **`main` and shared branches are refused.** The agent commits to
+#     `auto/<topic>`; a human merges. A token that can push anywhere is one
+#     confused iteration away from rewriting the consolidated line.
+#   * **Force-push is refused**, always. Nothing here needs it, and history
+#     rewriting is the one mistake that cannot be undone by merging.
+#   * It pushes the CURRENT branch only, by name, so a stray `--all` cannot
+#     publish another agent's worktree branch mid-experiment.
+#
+# Credentials come from a file mounted read-only at ~/.git-credentials (see
+# `sylph-agent`). They are never printed, never logged, and never passed on a
+# command line.
+#
+#   push-work            push the current branch
+#   push-work --dry-run  say what it would do
+set -euo pipefail
+
+DRY=0
+[ "${1:-}" = "--dry-run" ] && DRY=1
+
+repo_root=$(git rev-parse --show-toplevel 2>/dev/null) || {
+  echo "push-work: not inside a git repository" >&2; exit 1; }
+cd "$repo_root"
+
+branch=$(git rev-parse --abbrev-ref HEAD)
+if [ "$branch" = "HEAD" ]; then
+  echo "push-work: detached HEAD — check out a branch first" >&2; exit 1
+fi
+
+case "$branch" in
+  auto/*) ;;
+  *)
+    echo "push-work: refusing to push '$branch'." >&2
+    echo "  Only auto/* topic branches may leave the container; a human merges" >&2
+    echo "  them into main. Move your work:  git switch -c auto/<topic>" >&2
+    exit 1 ;;
+esac
+
+if [ ! -s "$HOME/.git-credentials" ]; then
+  echo "push-work: no credentials mounted at ~/.git-credentials." >&2
+  echo "  The host must start the container with SYLPH_GIT_CREDENTIALS pointing" >&2
+  echo "  at a file containing one line:" >&2
+  echo "    https://<user>:<token>@git.mc02.dev" >&2
+  exit 1
+fi
+
+# `store` reads the file we mounted; nothing is written back (it is read-only).
+git config --local credential.helper "store --file=$HOME/.git-credentials"
+
+ahead=$(git rev-list --count "origin/$branch..$branch" 2>/dev/null || git rev-list --count HEAD)
+echo "push-work: $branch — $ahead commit(s) to publish"
+
+if [ "$DRY" = 1 ]; then
+  echo "push-work: --dry-run, stopping here"
+  exit 0
+fi
+
+# --force-with-lease is deliberately NOT offered. If this is rejected as
+# non-fast-forward, someone else moved the branch: fetch and merge, do not
+# overwrite.
+git push --set-upstream origin "$branch"
+echo "push-work: pushed $branch"

docker/agent/loop-task.md

@@ -1,48 +1,122 @@
-Work the Project Sylpheed reverse-engineering backlog, one item at a time.
+Answer the open questions the Godot menu port is blocked on, one at a time.
 
-Read `Syplheed-Reborn/docker/agent/AGENT.md` first — it has the container's
+## Your objective
-tooling and, more importantly, the method rules this corpus is built on.
+
+`Syplheed-Reborn/docs/port/MISSION.md` — read it every iteration. It lists the
+open questions Q1…Q9 plus a gated probe S1, and the gate each one must pass.
+
+**You do not build the port.** A separate agent does that, from what you produce.
+Your deliverable is decoded, verified, written-down answers with the evidence.
+If you find yourself designing an export schema or writing GDScript, you have
+crossed the line — go back to the question you were answering.
+
+This is still reverse engineering. What changed is what earns attention: an item
+is worth doing when the menu port is blocked on it.
+
+## Read these first, every iteration
+
+Short on purpose, and the reason this prompt is short:
+
+1. `docs/port/MISSION.md` — the open questions, their gates, what is out of scope.
+2. `docs/port/HANDOFF.md` — what the port agent has been told so far. **Update it
+   when you answer something.** An answer not reachable from that page has not
+   been delivered.
+3. `docs/re/REFUTED.md` — claims already tested and dead. Grep it for your nouns
+   before designing anything.
+4. `docs/re/METHOD.md` — the traps this corpus has already paid for.
+5. `docs/re/INDEX.md` — what is already decoded. Re-deriving a ✅ row is not a
+   finding; asking whether its values *resolve* is.
+6. `docker/agent/AGENT.md` — the container's tooling.
+
+`docs/re/disc-atlas.html` maps how the assets reference each other — useful when
+you need to find what feeds what.
+
+**These files are the memory.** A finding that lives only in your context is lost
+when the container dies.
 
 ## Each iteration
 
-1. **Pick one item.** Take the next open entry from
+1. **Pick one question** from MISSION.md, preferring the one that blocks the port
-   `Syplheed-Reborn/docs/re/BACKLOG.md`, preferring the one whose "first step"
+   earliest and whose first step is cheapest. If you are mid-question, continue it
-   is cheapest and most decisive. If you are mid-item from a previous
+   rather than starting another.
-   iteration, continue it rather than starting another.
+2. **Do the smallest experiment that could settle it**, and try to *refute* your
-2. **Do the smallest experiment that could settle it**, and try to *refute*
+   hypothesis before believing it. Run the known-positive through any new filter
-   your hypothesis before you believe it.
+   first; a filter that fails its own control is dead, not tuneable.
-3. **Write the result down** in `docs/re/` under the ✅/🟡/❔ convention, with
+3. **Classify the answer honestly.** Every answer is exactly one of:
-   the evidence. A withdrawn or refuted result is a real result — record it,
+   * **decoded** — the field, plus a disc-wide check;
-   with the reasoning, rather than deleting it.
+   * **measured** — not on the disc in any form you found, but here is what the
-4. **Commit** to a topic branch (below), one logical change per commit.
+     running game does, and here is the capture;
-5. **Say plainly what you did not settle**, and stop the iteration.
+   * **undecodable, with reach** — you looked here, here and here, and this is
+     why it is not there.
+
+   Never a fourth thing. *Measured* and *undecodable* mean the port agent will
+   author that value by hand, and it must know it is authoring rather than
+   transcribing. Labelling a guess as a decode puts it into the port wearing the
+   badge of a measurement.
+4. **Write it down** in `docs/re/` under the ✅/🟡/❔ convention, with the evidence
+   and the *reach* of any negative, then update the row in `docs/port/HANDOFF.md`.
+   * Refuted something → a line in `REFUTED.md`.
+   * Bitten by a general trap → a line in `METHOD.md`.
+   * Closed a format → update its `INDEX.md` row.
+5. **Commit** to `auto/<topic>`, one logical change per commit.
+6. **Publish**: `push-work`. Every iteration that produced a commit.
+7. **Say plainly what you did not settle**, and stop.
 
 ## Hard rules
 
-* **Never commit to `main`.** Work on `auto/<topic>` in whichever repo you are
+* **Do not build the port.** No Godot project, no GDScript, no asset pipeline, no
-  touching, branched from the current `main`. Create it if it does not exist.
+  export schema, no transcoding. Those belong to the port agent.
-* **Never push.** No push credentials are mounted, and that is deliberate — a
+* **Do not touch `crates/sylpheed-viewer`.** The Explorer is the human's tool for
-  human reviews before anything leaves the box.
+  exploring and verifying the RE work; it keeps its static-data-only rule and the
-* **One emulator at a time.** `run-canary` enforces this with a lockfile; do not
+  port does not depend on it.
-  work around it.
+* **Never commit to `main`**, never rebase a shared branch, never delete a branch,
-* **Do not edit `main`'s history**, do not rebase shared branches, and do not
+  never rewrite history.
-  delete branches.
+* **Do not touch another agent's worktree.** `git worktree list` first; branches
-* **Measure the oracle; never infer it.** An iteration that reasons about the
+  marked `+` are checked out elsewhere.
-  game without running it is a red flag unless it is a pure static-format task.
+* **One emulator at a time** — `run-canary` enforces it with a lockfile.
-* **Verify with an artifact**, not with "it compiles": `build-reborn test` (it
+* **Measure the oracle; never infer it.** Most of the open questions are about
-  wires up `SYLPHEED_DISC` — without it the disc tests silently self-skip and a
+  *behaviour* — timing, transitions, what a button does, what a d-pad press does
-  green run means almost nothing), `sylpheed-cli mesh render`, `screen render`,
+  at the end of a list. Those cannot be answered from the file. An iteration that
-  `save info`, a screenshot.
+  reasons about the game without running it is a red flag unless the question is
+  a pure static-format one.
+* **Do not improvise around a blocker.** If a question needs a decision only the
+  user can make, or the container cannot do it, write what you found, note it in
+  MISSION.md, and move to the next question you can actually finish.
 
-## When you are blocked
+## The S1 probe
 
-If an item needs something the container cannot do — hardware Vulkan for a
+One iteration, then **stop and write the go/no-go**. Do not start Ready Room work
-rendering question, a push, a decision only the user can make — **do not
+on your own authority — MISSION.md §S1 says why.
-improvise around it**. Write what you found, note the blocker in `BACKLOG.md`,
+
-and move to the next item.
+## Verifying
+
+* `build-reborn test` wires up `SYLPHEED_DISC`; without it the disc tests
+  self-skip and a green run means almost nothing.
+* Verify with an **artifact**, not with "it compiles": `sylpheed-cli screen
+  info` / `screen render` / `mesh render` / `save info`, a capture, a screenshot.
+* Commit the reference data beside the finding, so the port can be built without
+  a disc in the loop during development.
+* A regenerated artifact that comes out byte-identical is strong evidence a change
+  was additive. When it does change, check that every diff line pairs exactly.
+
+## Publishing
+
+`push-work` pushes the current branch to origin. It refuses anything that is not
+`auto/*` and never force-pushes, so the consolidated line stays a human's
+decision. Run it **every iteration that produced a commit** — not at the end of
+some longer arc, which is exactly when a container dies.
+
+If it reports no credentials, say so in your reply and continue working. Do not
+improvise another route out: no remote rewrite, no credential helper of your own,
+no alternate transport. A push that is blocked is a blocked push.
 
 ## Pacing
 
-Self-pace. A useful iteration is one experiment plus its write-up, not a
+One experiment plus its write-up is a good iteration; a marathon is not. Stop with
-marathon; stopping with a clean commit and an honest "here is what is still
+a clean commit, a push, and an honest list of what is still open.
-open" is the goal every time.
+
+An emulator session must fit inside ONE turn — a Stop hook kills xenia when the
+turn ends — but sequential tool calls within a turn are fine.
+
+The loop runs on a fixed interval set by the harness, so you do **not** need to
+arm the next wakeup yourself. Spend that attention on the write-up instead.

docker/agent/sylph-agent

@@ -21,6 +21,9 @@
 #   SYLPH_VULKAN=sw    force software Vulkan (lavapipe) even if /dev/dri exists
 #   SYLPH_REMOTE=0     do NOT enable Remote Control (default: enabled for `loose`)
 #   SYLPH_REMOTE_NAME  Remote Control session name (default: sylpheed-agent)
+#   SYLPH_GIT_CREDENTIALS  file with `https://<user>:<token>@host` for push-work
+#                      (default: $HOME/.sylph-git-credentials)
+#   SYLPH_LOOP_INTERVAL   fixed loop cadence, e.g. 30m (default: 45m)
 #   SYLPH_CPUS / SYLPH_MEM_GB   override the computed half
 set -euo pipefail
 
@@ -125,6 +128,21 @@ docker_args() {
     echo "    packaged SPIRV-Tools is too old. Running is unaffected." >&2
   fi
 
+  # ── git push ──
+  # Read-only, and only ever used by `push-work`, which refuses anything but an
+  # auto/* branch and never force-pushes. Without this the agent's work only
+  # exists inside the container and dies with it.
+  GITCRED="${SYLPH_GIT_CREDENTIALS:-$HOME/.sylph-git-credentials}"
+  if [ -f "$GITCRED" ]; then
+    _out+=(-v "$GITCRED:/sylph-home/re/.git-credentials:ro")
+  else
+    echo "==> NOTE: no git credentials at $GITCRED — the agent cannot push," >&2
+    echo "    so its work will be lost if the container is destroyed. Create it" >&2
+    echo "    with a single line and chmod 600:" >&2
+    echo "      https://<user>:<token>@git.mc02.dev" >&2
+    echo "    or point SYLPH_GIT_CREDENTIALS elsewhere." >&2
+  fi
+
   [ -n "${ANTHROPIC_API_KEY:-}" ] && _out+=(-e "ANTHROPIC_API_KEY=$ANTHROPIC_API_KEY")
   [ -n "${SYLPH_VULKAN:-}" ]      && _out+=(-e "SYLPH_VULKAN=$SYLPH_VULKAN")
   [ -n "${SYLPH_REMOTE:-}" ]      && _out+=(-e "SYLPH_REMOTE=$SYLPH_REMOTE")
@@ -191,7 +209,12 @@ case "${1:-}" in
         TASK="Work the RE backlog in Syplheed-Reborn/docs/re/BACKLOG.md."
       fi
     fi
-    INTERVAL="${SYLPH_LOOP_INTERVAL:-}"   # empty = let the model self-pace
+    # A FIXED interval by default, not self-pacing. Self-pacing requires the
+    # agent to call ScheduleWakeup itself at the end of every turn, and the one
+    # thing an agent deep in an experiment reliably forgets is the bookkeeping
+    # after it. With an interval the harness owns the cadence and a forgotten
+    # wakeup cannot end the run. Set SYLPH_LOOP_INTERVAL= (empty) to self-pace.
+    INTERVAL="${SYLPH_LOOP_INTERVAL-45m}"
     declare -a ARGS; docker_args ARGS
     ARGS+=(-e SYLPH_AUTONOMOUS=1 -w "$PROJECT")
     echo "==> loose  |  cpus=$CPUS  mem=${MEM_GB}g  shm=${SHM_GB}g"
@@ -206,8 +229,19 @@ case "${1:-}" in
     echo "      ./sylph-agent attach      chat with it locally (Ctrl-P Ctrl-Q to leave it running)"
     echo "      ./sylph-agent stop        stop it"
     echo
-    echo "    It commits to auto/* branches and cannot push — no git credentials"
+    # Report what is actually true. This line used to claim unconditionally that
-    echo "    are mounted, so review its work with: git -C '$PROJECT/Syplheed-Reborn' log --oneline auto/..."
+    # the agent could not push, which was written before credentials were
+    # supported and then went stale — telling the operator their work was at risk
+    # when it was not, which is the exact failure the credential mount fixes.
+    if [ -f "${SYLPH_GIT_CREDENTIALS:-$HOME/.sylph-git-credentials}" ]; then
+      echo "    It commits to auto/* branches and publishes them with push-work,"
+      echo "    which refuses any other branch and never force-pushes. Review with:"
+      echo "      git -C '$PROJECT/Syplheed-Reborn' fetch origin && git log --oneline origin/auto/..."
+    else
+      echo "    It commits to auto/* branches and CANNOT PUSH — no git credentials"
+      echo "    are mounted, so its work dies with the container. Review it with:"
+      echo "      git -C '$PROJECT/Syplheed-Reborn' log --oneline auto/..."
+    fi
     ;;
 
   logs)   shift; exec docker logs "$@" "$NAME" ;;

docs/port/HANDOFF.md

@@ -0,0 +1,99 @@
+# Handoff — what the menu port needs, and where it stands
+
+The single page the **port agent** reads. Everything here is produced by the
+container agent's reverse engineering; nothing here is a design decision about
+the port itself.
+
+Keep it current. It is a summary with links into `docs/re/`, not a second copy of
+the findings — but an answer that is not reachable from this page has not been
+delivered.
+
+## How to read an answer
+
+Every row below is one of exactly three things, and the distinction is the point:
+
+| | meaning | what the port should do |
+|---|---|---|
+| **decoded** | a field on the disc, with a disc-wide check | read it from the data |
+| **measured** | not on the disc in any form we found, but the running game does *this* | hardcode it, and cite this page |
+| **undecodable** | we looked in these places, it is not there, here is the reach of the negative | author it by hand, knowingly |
+
+There is no fourth kind. If a row says *measured* or *undecodable*, the port is
+**authoring** that value, not transcribing it — and it should be kept somewhere a
+human can see it is a human decision, so that when it is later decoded the
+authored version can be deleted.
+
+## Status
+
+| | Question | State | Answer / link |
+|---|---|---|---|
+| Q1 | keyframe time unit + ramp shape | ❔ open | blocks all animation |
+| Q2 | which build is which screen state | 🟡 partial | build 4 title, 5 main menu, 6/8/9 submenus, `palogo` splash — unconfirmed against captures |
+| Q3 | paint order for the six screens | ❔ open | runtime-solved only; declaration table is refuted |
+| Q4 | button → GamePart | ❔ open | labels are baked into sprites |
+| Q5 | navigation semantics | ❔ open | |
+| Q6 | boot sequence + what drives it | 🟡 partial | order observed; the driver is not decoded |
+| Q7 | transitions | ❔ open | |
+| Q8 | menu audio bindings | ❔ open | cue table complete, event binding is not |
+| Q9 | video binding + playback rules | 🟡 partial | `ADV.wmv` is the boot intro; new-game intro unidentified |
+| Q10 | music-bank sub-wave roles (intro+loop?) | ❔ open | we concatenate blindly today |
+| S1 | Ready Room go/no-go | ❔ open | probe not run |
+
+## Already settled — the port can rely on these today
+
+* **`GP_TITLE.pak` is the whole title-side tree.** Build 4 is the title with the
+  animating wordmarks, build 5 the five-button main menu, builds 6/8/9 are
+  submenus, and the developer splash is the `palogo` bundle in the same archive.
+  ✅ decoded (enumeration), 🟡 the state labels are not yet capture-confirmed.
+* **Buttons are identifiable as data.** Element kind `0x3002` = button, `0x0` =
+  decoration, `0x10` = primitive. ✅ decoded.
+* **Menu order is geometric.** Buttons sorted top-to-bottom by resting Y. This is
+  ✅ correct for a vertical menu and is **not** a decoded neighbour graph — the
+  disc's real navigation structure is unknown, and `opt ` is *not* a focus link
+  (measured and refuted, see
+  [`ui-focus-and-effect-elements.md`](../re/structures/ui-focus-and-effect-elements.md)).
+* **Highlighted states pair by name** — `ptbtn01.rat` ↔ `ptbtn01f.rat`. 🟡 a
+  naming convention that holds for all 54 real pairs, not a decoded field.
+* **The resting pose is the hold**, not the first, last or longest-dwell keyframe;
+  a keyframe is the **start of a ramp**.
+  [`ui-resting-pose.md`](../re/structures/ui-resting-pose.md). ✅
+* **The GamePart id table** — 29 entries at `.rdata 0x820A1630`, confirmed by the
+  executable's own registration strings. ✅ This is the screen vocabulary; which
+  button reaches which entry is Q4 and is *not* part of it.
+* **The logo splash is a screen, not a video.** `logo1`–`logo4` are
+  manifest-bound with no `.wmv` on the disc. ✅
+* **Sprites carry their own labels.** No font rendering or localisation is needed
+  for this milestone. ✅
+
+## Facts the port will trip over
+
+* **`ADV.wmv` is WMV3 video + WMA Pro audio**, 1280×720 at 30 fps, 137 s. Godot 4
+  plays only Ogg Theora natively. How to handle that is the port's decision, not
+  ours — but it is not optional.
+* **The disc holds 3.3 GB of video.** Only the boot intro and the one new-game
+  intro are in scope.
+* **`Static.slb` over-declares its size** by 616 768 bytes — it is the
+  highest-offset entry in `sound.pak` and its size field is an allocation size. A
+  reader must allow a short read there and only there.
+* **Voice downmixes to mono, music does not.** The left-channel downmix is correct
+  for spoken lines and discards half a music mix.
+* **A music bank has several sub-waves and we glue them together.** `BGM_001`
+  is 10 KB + 4.47 MB + 4.67 MB, concatenated into one 347 s track. Nobody has
+  established whether those are intro + loop, two variations, or two halves —
+  see Q10. Do not build menu looping on the concatenated track until it is
+  answered.
+* **`JNGL_001.slb` does not decode.** One bank in 9 519; its payload is not a whole
+  number of XMA1 packets from any known data offset.
+
+## Reference data
+
+Committed alongside the findings, so the port can be built without a disc in the
+loop during development:
+
+* `sylpheed-cli screen info --build <n> GP_TITLE.pak` — the element table, per
+  build, with pivots, kinds, focus links, keyframes and resting poses.
+* `sylpheed-cli screen render` — the reference composite. When the port draws a
+  screen, this is what it should be diffed against; where they disagree, one of
+  them is wrong and the disagreement is worth reporting back.
+* `docs/re/captures/` — framebuffer captures of the real screens, for anything
+  that has to be checked against the game rather than against our renderer.

docs/port/MISSION.md

@@ -0,0 +1,132 @@
+# Primary objective — answer everything the menu port needs
+
+**Status:** active, set 2026-08-28. This replaces "work the RE backlog" as the
+agent's primary objective. It does not change what the agent *does* — it is still
+reverse engineering — it changes what earns attention: an item is worth doing
+when the menu port is blocked on it.
+
+## Who builds what
+
+**You do not build the port.** A separate agent will build it, from what you
+produce. Your deliverable is decoded, verified, written-down answers plus the
+reference data that proves them.
+
+| | container agent (you) | port agent |
+|---|---|---|
+| decodes the disc | ✅ | ❌ — consumes your answers |
+| measures the running game | ✅ | ❌ — no emulator |
+| writes `docs/re/` and `docs/port/HANDOFF.md` | ✅ | reads them |
+| Godot project, asset pipeline, transcoding | ❌ | ✅ |
+
+If you find yourself designing an export schema or writing GDScript, you have
+crossed the line. Stop and go back to the question you were answering.
+
+`crates/sylpheed-viewer` is also **not yours to change** for this objective. The
+Explorer is the human's tool for exploring and verifying the RE work, it keeps its
+static-data-only rule, and the port does not depend on it.
+
+## The target
+
+Someone else has to build this, from your answers alone:
+
+```
+developer logo splash  →  intro video  →  title / PRESS Ⓐ  →  main menu  →  submenus
+```
+
+No gameplay, no 3D, no HUD, no missions. If an answer is not needed to put those
+five screens on a display and let a person move through them with a d-pad and Ⓐ,
+it is not in this objective.
+
+## What is already answered
+
+Do not re-derive these. They are in `docs/re/` and the
+[disc atlas](../re/disc-atlas.html):
+
+* **The screen archive.** `GP_TITLE.pak` holds the whole title-side tree — build 4
+  the title with animating wordmarks, build 5 the five-button main menu, builds
+  6/8/9 submenus, and the developer splash as the `palogo` bundle in the same pak.
+* **Buttons are identifiable as data.** Element kind `0x3002` is a button, `0x0`
+  decoration, `0x10` a primitive; buttons sort top-to-bottom by resting Y; each
+  pairs with an `f`-suffixed highlighted variant.
+* **The screen vocabulary.** The GamePart id table, 29 entries at `.rdata
+  0x820A1630`, confirmed by the executable's own factory-registration strings.
+* **The resting pose rule** — the hold, not the longest dwell — and that a
+  keyframe is the *start of a ramp*.
+* **Screen composition**, pixel-accurate for the tutorial pause menu and the title
+  main menu, via `sylpheed-cli screen render`.
+* **The logo splash is not a video.** `logo1`–`logo4` are manifest-bound with no
+  `.wmv` on the disc; the splash is the RATC screen, which already renders.
+
+## The open questions — these are the objective
+
+Ordered by what blocks the port earliest. Each is done when its **gate** exists:
+a written `docs/re/` result with the evidence, and reference data committed
+alongside it.
+
+| | Question | Gate |
+|---|---|---|
+| **Q1** | **What is a keyframe time?** Values run 16…269. 60 Hz frames would make the title intro ~4.5 s — plausible and untested. Also: is the ramp linear, or eased? | A measured answer against the running game, not an inference. Everything animated downstream depends on this number |
+| **Q2** | **Which build is which screen state?** Confirm build↔state for splash, title/PRESS Ⓐ, main menu and each submenu | A table, each row confirmed against a capture of the real screen |
+| **Q3** | **Paint order for these six screens.** Solved at runtime, unsolved from the file — the declaration table is provably not it | Either a rule derived from the bundle, or six measured orders and a clear statement that no file-side rule was found |
+| **Q4** | **What does each button do?** Labels are baked into the sprites; no decoded field says which GamePart a button opens | Button → GamePart id, from code or from driving the game. Say which |
+| **Q5** | **Navigation semantics.** Initial focus, wrap-around at the ends, whether left/right does anything, what B does on each screen | Observed behaviour, per screen |
+| **Q6** | **The boot sequence, and what drives it.** Order is observable; the *data or code* that sequences it is not decoded. Include the attract loop and what returns to the title | The sequence, plus whatever the game reads to decide it |
+| **Q7** | **Transitions.** What happens visually between screens — the `pteff00.prm` quads, a fade, a cut — and its timing | Described and timed against a capture |
+| **Q8** | **Menu audio.** Which BGM per screen; which cue on move / confirm / back / error. The cue table is complete; the event binding is not | Cue names bound to events, with how you established each |
+| **Q9** | **Video binding.** Which movie is the boot intro vs the new-game intro; whether playback is skippable and what ends it | Named movies plus the playback rules |
+| **Q10** | **What are a music bank's sub-waves?** `BGM_001.slb` is three sub-waves — 10 KB, 4.47 MB, 4.67 MB — and we currently **concatenate them blindly** into one 347 s track. Two near-equal halves could be intro + loop, or two variations, or two halves of one piece. A menu that loops its music needs to know which | The role of each sub-wave, established for at least the menu BGM. "Concatenate" is a decision, not a default — right now it is a default nobody chose |
+| **S1** | **Ready Room probe.** *Gated* — one iteration, then stop | A written go/no-go (see below) |
+
+## Known unknowns — say so, do not fill them in
+
+Some of these may turn out to be undecodable. That is a valid, useful answer, and
+it is better than a guess, because the port agent will otherwise have to author
+the mapping by hand and needs to know it is authoring rather than transcribing.
+
+For each question, the answer is one of:
+
+* **decoded** — here is the field, here is the disc-wide check;
+* **measured** — not on the disc in any form we found, but here is what the
+  running game does, and here is the capture;
+* **undecodable, with reach** — we looked here, here and here, and this is why it
+  is not there.
+
+Never a fourth thing. In particular: if Q4 ends as "read the labels off the sprite
+images by eye", say exactly that — it is then an authored mapping on the port
+side, not a disc fact, and mislabelling it would put a guess into the port wearing
+the badge of a measurement.
+
+## The Ready Room probe (S1) — one iteration, then stop
+
+`GP_READY_ROOM.pak` is the largest UI archive on the disc, 1 106 entries, and only
+**6 of its names resolve**. It is also ISL-scripted. That is either a week or a
+quarter, and one cheap test tells you which.
+
+Our screen catalog enumerates bundles by **content**, not by name — `is_build` /
+`is_composable` read the bytes — so unrecoverable *paths* do not necessarily mean
+unrenderable *screens*.
+
+```bash
+sylpheed-cli screen list "$SYLPHEED_DISC/dat/GP_READY_ROOM.pak"
+sylpheed-cli screen render --build <n> "$SYLPHEED_DISC/dat/GP_READY_ROOM.pak" /tmp/rr.png
+```
+
+Report how many builds it finds, whether any composite looks like a Ready Room,
+and **whether the room is 2D at all** or 3D with a UI overlay — if it is 3D the
+answer is no-go by definition, not "try harder".
+
+**Then stop and write the go/no-go.** Do not start Ready Room work on your own
+authority.
+
+## Handing it over
+
+[`HANDOFF.md`](HANDOFF.md) is the single page the port agent reads. Keep it
+current as you answer questions: it is a summary with links into `docs/re/`, not a
+second copy of the findings. An answer that is not reachable from HANDOFF.md has
+not been delivered.
+
+## Out of scope
+
+3D, gameplay, HUD, missions, save/load, localisation beyond English, the Godot
+project itself, any asset pipeline, and any archive outside `GP_TITLE`,
+`tables.pak`, `sound.pak` and `dat/movie/` — except for the S1 probe.

docs/re/INDEX.md

@@ -2,6 +2,11 @@
 
 Confidence: ✅ `CONFIRMED` · 🟡 `PROBABLE` · ❔ `HYPOTHESIS`. See [README](README.md).
 
+Also durable, and worth reading before proposing anything:
+[`REFUTED.md`](REFUTED.md) — what has already been tested and died ·
+[`METHOD.md`](METHOD.md) — the traps this corpus has already paid for ·
+[`BACKLOG.md`](BACKLOG.md) — what is still open.
+
 Formats we've already reversed are, for now, **documented by their parser + disc round-trip
 tests** (the executable spec) rather than a prose file — the "Spec" column points there.
 Promote to a prose `structures/…md` file when a format needs behavioural notes beyond layout.
@@ -13,6 +18,7 @@ Promote to a prose `structures/…md` file when a format needs behavioural notes
 | IPFB `.pak` archive | ✅ | `sylpheed-formats/src/pak.rs` + `tests/pak_idxd_disc.rs` | header + 12-byte TOC, Z1/zlib payloads |
 | name-hash (TOC keys) | ✅ | `sylpheed-formats/src/hash.rs` | Barrett-reduction hash; recovers original paths |
 | IDXD object/table | ✅ | `sylpheed-formats/src/idxd.rs` + `tests/idxd_records_disc.rs` ([container](structures/idxd-container.md)) | **The binary record/index region in front of the string pool is DECODED** (2026-08-25), closing the parser's long-standing "not yet decoded" note. Uniform 16-byte records `{name_hash, name_off, field_begin, field_end}` sorted by hash and binary-searched, then a field count, 12-byte fields `{key, name_off, value_off}` sorted by key, a pool size, and the string pool; the trailing `pool_size == file_len - pool_base` identity makes the layout self-checking. Verified over the **whole disc** with **zero** failures: 7 750/7 750 objects, 190 782/190 782 records reproducing their stored `tag_hash`, 1 271 462/1 271 462 named fields reproducing their key — and `IXUD` is the same container with `ixud_hash`, UTF-16BE and all offsets in **chars** (1 104/1 104 objects, 628 165/628 165 fields). **Field names are stored on disc** — a field's middle word points at its own name — so nothing needs preimage search except the **504** field entries disc-wide that are hash-keyed with no name — which are only **42 distinct keys**, each in 12 places (the page for these was never written — the finding is in this row), and are provably unrecoverable from the hash alone; the other 1 485 073 nameless fields are *positional*, keyed by a literal integer (line slots, movie ids). ⚠️ **Two long-held beliefs WITHDRAWN**: the word at `0x08` is **not a schema hash**, it is record 0's `name_hash` (7 750/7 750) — the header has no type field at all, so an object's kind is known only from the caller that loads it; and the field's middle word is **not** an always-`0xFFFFFFFF` flags word. The first was caught by a test asserting that every movie id names a real record: `1005 -> STAGE10_PHASE01` failed because `tag_hash("STAGE10_PHASE01")` **is** `0x067025B9`, that table's supposed schema id. 🟡 the legacy value-before-key string-pool reader is now known to be an *approximation* of the real table, and every number derived from it is re-checkable but not yet re-checked |
+| IDXD nameless field keys | ✅/❌ | [idxd-unnamed-keys](structures/idxd-unnamed-keys.md) + [`tools/re-capture/idxd_unnamed_keys.py`](../../tools/re-capture/idxd_unnamed_keys.py) | Census of every field entry whose `name_off` is `0xFFFFFFFF`, disc-wide: **7 750 objects, 2 757 039 field entries, 0 parse failures**, `tag_hash` reproducing **1 271 462/1 271 462** named keys. **7 094 distinct keys are never named — and 7 052 of them are not hashes at all**, but author-assigned element ids (equal to the field's own index in 1 404 924 of 1 485 577 cases; `tag_hash("BGM_001")` is `0xC662435B` while the key valued `BGM_001.slb` is `0x000003E9`). ⚠️ **The "504 hash-keyed nameless fields" figure is 504 ENTRIES, not 504 names** — 42 distinct keys × 6 language copies × 2 records. All 42 are **ISL script-symbol hashes** in `<lang>\script\ID.tbl` (GP_READY_ROOM.pak), the link map built by `PrepareScript`'s "isl script prescanning"; 41 of 42 appear as little-endian call targets inside the `.isb` bytecode, forming a coherent launcher/helper call graph. The hash's own algebra pins the **trailing digits of 30 of the 42 names** (deltas of exactly `+0x01000001` across `stage01..09`, `stage10..16`, `challenge01..06`; `+0x01010000` across `tutorial0101..0601`). ❌ **No name was cracked, and the negative is quantified**: seven attacks up to a 3.5×10⁸ composition space found nothing above the noise floor; exhaustive preimage search recovers `"Stage01"` from its own hash but returns nothing for the real targets at ≤6 characters, and at 7 characters one target already has **1 176** preimages — a 24-bit modulus cannot name an 8+ character identifier uniquely |
 | XPR2 texture + cubemap | 🟡/✅ | `sylpheed-formats/src/texture.rs` + [colour check](xpr2-colour-check.md) | de-tile + A8R8G8B8 and DXT1. **Channel order ✅ confirmed against the running game**: the Delta Saber's decoded atlas is orange-dominant (median saturated hue 23.3°, *zero* cool pixels) and the game renders the same hull at 9.3° — a red↔blue swap would sit at ≈200°. Exact fidelity (gamma/sRGB curve, premultiplied alpha, per-channel scale) is 🟡 untested, since a hue comparison cannot see it; cubemap face ordering ❔ |
 | T8aD 2D texture | ✅ | `sylpheed-formats/src/t8ad.rs` | **100 % of the disc decodes** (19 216/19 216, measured). The "~15 % deferred variants" were a wrong model, not a variant: a surface is a list of **arbitrary sub-rectangles**, each with a 16-byte header of `dst X, dst Y, width, height`, not a 256×256 grid — `0x1c` is the **rectangle count**. Uncovered area stays transparent. **Colours ✅ CONFIRMED** ([k8888](structures/texture-color-k8888.md)) |
 | RATC bundle | ✅ | `sylpheed-formats/src/ratc.rs` | child listing confirmed. **"One level deep" is not a limitation — there is nothing deeper**: 2 859 bundles hold 18 002 children at depth 1 and **0 at depth 2**, with no parse failures. Nested RATC blobs are **leaf records that reference siblings by name** (`opt `, the sprite name): 3 311 leaves, all embedding sibling names, **10 144 of 10 148 references resolve**. The 4 that do not are one dangling asset — `pmbase.rat` → `pmbase.t32` in `GP_STAGE_CLEAR.pak`'s four language builds, and `pmbase.t32` is **on the disc nowhere** |
@@ -94,7 +100,7 @@ files, which is how the same ground got covered twice.
 | [`idxd-legacy-reader-audit.md`](idxd-legacy-reader-audit.md) | The legacy IDXD string-pool reader vs the real field table — what the old numbers got wrong | 🟡 shape CONFIRMED by hand (`FCSRange`, `ShieldRatio`, hangar `Model`); disc-wide rates are single-source |
 | [`structures/idxd-container.md`](structures/idxd-container.md) | The IDXD/IXUD container — record/field table, and the two beliefs it withdraws | ✅ CONFIRMED disc-wide, 7 750/7 750 objects and 1 271 462/1 271 462 named fields, zero failures |
 | [`structures/hud-glyph-quad.md`](structures/hud-glyph-quad.md) | The HUD's glyph quad — vtable `0x820B2A64` | ✅ CONFIRMED for the object layout and the atlas size, read live off |
-| [`structures/slb-data-offset.md`](structures/slb-data-offset.md) | `.slb` leading-stream offset is `first_riff % 2048`, not the constant 1392 | ✅ CONFIRMED by decoding — 85 of 140 sampled banks yield more audio (median 70×), 54 identical controls. ⚠️ The *cause* is a segment-packing phase, not a header: `X = (cumulative .pNN start) mod 2048`. Wave boundaries are exact — `seek` magic at `data_at + declared_size`, **7 620/7 620** — and `Channels` must be read from `RIFF+49` (2.12 % are stereo) |
+| [`structures/slb-data-offset.md`](structures/slb-data-offset.md) | `.slb` data offset = `(cumulative start of the `.pNN` segment) mod 2048`; the leading bytes are the previous bank's audio, not a header | ✅ CONFIRMED — exact for 8 783/8 783 banks, 0 mismatches; the four values (1392/1468/1600/1728) are the running sums of the five segment sizes mod 2048, which supersedes the earlier `first_riff % 2048` scan heuristic. Decoding at the right offset yields more audio in 85 of 140 sampled banks (median 70×), 54 identical controls. Wave boundaries are exact — `seek` magic at `data_at + declared_size`, **7 620/7 620** — and `Channels` must be read from `RIFF+49` (2.12 % are stereo) |
 | [`structures/sound-pak-contents.md`](structures/sound-pak-contents.md) | Census of `sound.pak`, and the limit of the leading-region rule | ✅ CONFIRMED, 5 135/5 135 names hash into the TOC, **9 519/9 519** entries accounted for, and a full 4 114-bank manifest (408.3 min of audio) computed from PsuedoBytesPerSec without decoding; ⚠️ leading-region rule holds for 1 571/4 382 eng and 0/5 100 jpn |
 | [`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 |
@@ -116,12 +122,13 @@ files, which is how the same ground got covered twice.
 | [`structures/unit-datasheet-static.md`](structures/unit-datasheet-static.md) | The static unit datasheet and AI flight model — `Generic`, `Maneuver`, `Effect` |  ✅ CONFIRMED — 394 Generic + 114 Maneuver + 114 Effect records read; AA_/AV_ are one interleaved block (AV at X, AA at X+8), selection 🔴 BLOCKED for static RE (4 routes, all controlled) |
 | [`structures/weapon-datasheet-static.md`](structures/weapon-datasheet-static.md) | The static weapon datasheet — `Weapon`, `Shell`, `AssortMissileParam` |  ✅ CONFIRMED — 131 Weapon + 131 Shell + 9 AssortMissileParam records read |
 | [`structures/isl-timers.md`](structures/isl-timers.md) | A ScriptPhase owns 32 stopwatches, and they count seconds |  ✅ CONFIRMED — the advance is read from `sub_822710D0`, the unit from |
+| [`structures/isl-builtins.md`](structures/isl-builtins.md) | The 147 ISL built-ins — dispatch table, calling convention, and which one does what | ✅ for the table/ABI and ~135 handlers; ✅ 26 `set_unit_hp_pct`, 29 `set_unit_damage_taken_pct`, 101 `all_units_invulnerable`; 🟡 28 |
 | [`structures/isl-message-dialogue-link.md`](structures/isl-message-dialogue-link.md) | Mission scripts as dialogue — built-in 64 -> message id -> caption text | ✅ CONFIRMED total, 2 683/2 683 call sites across all 28 stages resolve, no residue |
 | [`structures/mission-objective-counter.md`](structures/mission-objective-counter.md) | `REMAINING OB` — the mission's own objective counter, in RAM |  ✅ CONFIRMED for one Stage 02 run: a big-endian u32 whose value |
 | [`structures/movie-subtitles.md`](structures/movie-subtitles.md) | Movie subtitles & the movie ↔ mission ↔ text chain | — |
 | [`structures/asteroid-fields.md`](structures/asteroid-fields.md) | `AsteroidGroup_00N` — the asteroid-field tables a `Phase_N.AsteroidDefinition` names | ✅ 10 objects/pack, 384 group records, 3 fields each (`AsteroidModelName`, `AsteroidFrameName`, `EnumAsteroid` = **the frame record's `FrameCount`, 57/57**, and the frame holds **`index, quaternion(x,y,z,w), position(x,y,z)`** per asteroid — 37 518 items, unit norm 37 518/37 518); `Enum<Thing>` counts while `Enumerate<Thing>` names a table (54/60); the join resolves as `name_hash("stage\" + name)` 9/9; 🔑 a tenth `Frame_Alpha_S01_*` object nothing references — it miscounts AND its 7 frames have no placement records; 🔑 **S28.Phase_1 borrows `S14_p2_asteroid.tbl`** — the per-phase join shows 9 tables ↔ 9 volumes with one table shared |
 | [`structures/mcol-collision.md`](structures/mcol-collision.md) | `MCOL` — same container and map parameters as `REGN` | 🟡 OPENED — `POF0` at `data_size+16` 11/11, bbox pad words 11/11, `extent == max−min` 11/11, and bbox + cell-size distributions identical to `REGN` (2/6/3 and 2/9); everything past `0x40` ❔ |
-| [`structures/regn-map-grid.md`](structures/regn-map-grid.md) | `REGN` — a per-map spatial grid (and `MCOL` beside it) | ✅ CONFIRMED for the header, which self-checks on all 11 objects on |
+| [`structures/regn-map-grid.md`](structures/regn-map-grid.md) | `REGN` — a stage's tetrahedral navigation mesh (and `MCOL` beside it) | ✅ CONFIRMED — tet mesh + face adjacency + portal costs + uniform grid; decoded from the file's own `POF0` fixup table |
 | [`structures/savegame-format.md`](structures/savegame-format.md) | Save file (`savedata`) — container ✅ exact, 3 fields named ✅, rest ❔ (2026-08-11) | ✅ CONFIRMED for the container and the chunk layout — parsed off the |
 | [`structures/sound-slb.md`](structures/sound-slb.md) | Sound bank audio — `sound.pak` / `.slb` / XMA1 | — |
 | [`structures/stage-definition-table.md`](structures/stage-definition-table.md) | Stage definition table and the squadron (`UnitGroup`) roster | ✅ for the record vocabulary and the stage→table wiring; |

docs/re/METHOD.md

@@ -0,0 +1,105 @@
+# Method traps already paid for
+
+Each line cost an iteration at least once. They are general — they are not about
+Sylpheed, they are about how this kind of measurement goes wrong.
+
+Like [`REFUTED.md`](REFUTED.md), this list had been living in the autonomous
+agent's loop prompt, i.e. nowhere durable. See [`README.md`](README.md) for the
+✅/🟡/❔ confidence convention itself.
+
+## Controls
+
+* **Every result needs a control. A control that fails kills the instrument.**
+* **Run the known-positive through a new filter FIRST.** Three filters have been
+  killed by their own control. When one fails, **read the known-good's
+  disassembly** before assuming a shape.
+* **A measured negative is a result** — but a negative is only as strong as the
+  route you ran, so **state its reach**.
+* **A null result needs its cause shown to have happened.**
+* **A result with NO unknowns is suspicious.**
+* **Census the whole set; always run the other population as the control.**
+  **Zero partials is stronger than a majority.**
+* **A 2×2 partition is the sharpest general tool** — both off-diagonals empty is
+  a law.
+* **Re-derive a doc's own numbers as the control.**
+
+## Inference
+
+* **Never conclude from ONE sample.**
+* **A law proved on one population is a hypothesis on the next.**
+* **Finding one exception does not imply a family.**
+* **Consistency is not proof. A suggestive coincidence is a coincidence until
+  measured.** **An analogy is not a measurement.**
+* **Same layout ≠ same instance.** **Same record-name set ≠ same object.**
+* **A marker is only proven by what it leaves out.**
+* **A high-confidence SCORE is not a high-confidence MECHANISM.**
+* **Knowing HOW MANY is not knowing WHICH.**
+* **Round numbers matching is weak evidence — unless you read the constant.**
+* **My own last-turn result is a hypothesis too.**
+* **A global partition can understate a per-owner one.**
+* **A residual is measured against a population — name it.**
+
+## Searching and tooling
+
+* **A search that returns thousands has no power; state the reach.**
+* **A substring match is not a hit.** **A regex miss looks like a null result —
+  print one raw sample before believing a zero.**
+* **A derived table can be a cross product — measure its shape first.**
+* **After refuting an instrument, sweep everything that depended on it.**
+* **Before measuring how wrong a tool is, read what the tool actually does.**
+* **The instrument must pass its own control.**
+* **Classify a bulk before mining it. The residual is the prize.**
+* **Rank by similarity — the cliff is the finding.** But **read the values
+  before trusting the rank.**
+* **Grep the nouns before designing the experiment — and believe it.**
+* **Grep gives you a file list — read *every* file on it.**
+* **The answer is often already in the doc that owns the subject — read it end
+  to end.** A 🟡 often names its own route.
+* **Before re-trying a blocked idea, check whether the blocker's own doc already
+  tried it.**
+* **Ship a regenerator with every artefact.** An artefact that moves by a pure
+  reorder is a tool bug.
+* **Never print per-entry lines from a disc-wide sweep — aggregate.**
+
+## Reading the data
+
+* **Read what a loader NAMES, not where it stores.**
+* **A field the disc never values still gets named by the loader.**
+* **An indexed read beats a deduped-pool adjacency read.**
+* **Check the whole string set, not the one matching word.**
+* **A dict keyed by record name across a multi-entry pak is a lie.**
+* **A set-difference over names hides reuse — join per USER.**
+* **A self-index names records, not files.**
+* **Case-insensitive hashing means two spellings can be one entry.**
+* **An "unresolved" name may be the wrong kind, namespace or prefix — or part of
+  a cut asset.**
+* **A garbled value may be a real string in another encoding.**
+* **Two of my own counts disagreeing is a grammar clue.**
+* **A game's own typo is a join key.**
+* **A bias constant in the code is a join key.**
+* **A prefix trap: enumerate maximal `[A-Za-z0-9_]` runs, not `startswith`.**
+* **Re-deriving a format is not a finding — asking whether its values *resolve*
+  is.**
+
+## Mechanics that have bitten
+
+* **Never hand-convert a decimal VA — print `hex()`.**
+* **`grep -c` counts LINES** — use `grep -o | wc -l`.
+* **`Counter.most_common()` tie-breaks by insertion order — use `sorted()`.**
+* **Raw grep cannot see inside compressed pak entries.**
+* **Commit messages go in a file** (`git commit -F`); a literal `|` in a table
+  cell needs escaping; `git log --all -- <path>` can hang.
+
+## Runtime / emulator
+
+* **Look at the PNG** — and check its dimensions.
+* **"Animating" is not "still in a mission".**
+* **Dedup entity enumerations by position value.**
+* **Do not diagnose timing or liveness under gdb.** `ps %cpu` is cumulative.
+* **Classify screens by whole-image statistics, not named pixels** — a named
+  pixel is only valid while the image sits at a known place, and nothing errors
+  when it moves.
+* **Do not poll faster than the guest updates** — it manufactures a clean curve
+  out of noise.
+* **A probe that never performs the action will "prove" the action does not
+  exist.**

docs/re/REFUTED.md

@@ -0,0 +1,185 @@
+# Refuted — claims that were tested and died
+
+**Read this before proposing a hypothesis.** Every line below was believed at
+some point, measured, and found false. Reviving one costs a whole iteration and
+produces nothing.
+
+This file exists because the list had been living in the autonomous agent's
+*loop prompt* — the only copy, lost the moment the container was. A refuted
+result is a real result; it belongs in the corpus like any other.
+
+**Format:** each entry is the claim as it was believed. Where the true answer is
+known it follows after `→`. Grouped by subject so a grep for your noun finds the
+neighbourhood, not just the line.
+
+---
+
+## Offsets, structs and the progress singleton
+
+* `position = instance − 0x12c` → refuted.
+* `+0x29d0` → refuted.
+* "an offset intersection can find a struct's consumer" → **only for LARGE or
+  unusual offsets.** Small ones have no power (`+184`: 301/351/115 hits).
+* "a `+1956` store means a progress write" → writes go through the COPY, not
+  direct stores. 9 direct stores, none of them a progress write.
+* "the singleton-global filter can find progress writers" → it fails its own
+  control.
+* "the progress copy destination is an `r1`-relative stack local" → it is a
+  **frame register**. The `r1` assumption returned 0 for all 21 candidates
+  *including the known-good* — the filter was killed by its own control.
+* "word B's writer also stores the Time/Points record" → it does not.
+* "the debriefing records the metric with the clear bit" → 44 calls, exactly two
+  strings (`DEBRIEFING`, `BASE_INFO`), no `Time`, no `Points`.
+* "`0x820AF030` holds live state" → all 384 words constant; it is a
+  spawned-entity record, not live state.
+
+## Screens, classes and RTTI
+
+* "the RTTI route can name the anonymous classes" → 1 150 vtables: 1 150
+  `ANON_`, 0 `rtti_present`, 0 base classes.
+* "the sibling vtable methods name the class" → they cannot.
+* "`xrefs` can name the callers of a vtable method" → no.
+* "the `ind_call` refutation voids existing corpus claims" → damage bounded,
+  4/4 caller claims verify. But **`xrefs.ind_call` is a CROSS PRODUCT** — always
+  filter `kind='call'`.
+* "`BASE_INFO` marks the 5-slot screen family" → it discriminates
+  screen-config from table-read, 9/9 vs 10/10.
+* "a high key count means a rich screen" → `sub_82297550` / `sub_822A2F00`'s 27
+  "keys" are coordinate pairs, i.e. a layout table.
+* "`EX_` = the CHALLENGE-mission debriefing" → `EX_` is **EXTRA**, mission-kind
+  3.
+* "the `EX_` selection has not been shown" → it has: `[[obj+4]+184] == 3`.
+
+## Stages, missions and the challenge set
+
+* "the disc's stages are numbered 1..28" → S01–S16 story, S17 **cut**, S18–S23
+  tutorials, S24–S29 challenge.
+* "S24–S29 are story missions" → they are the challenge missions.
+* "the challenge missions have their own maps" → they reuse
+  `GP_MAIN_GAME_E.pak`'s stage records.
+* "the challenge `REQUIREMENT` values are 16,25,26,27,29" → the chain is
+  16→24→25→26→27→28.
+* "the `Extra0n` family shares one leaderboard metric" → `RECORD_TYPE` is
+  per-stage: 3 Time / 3 Points.
+* "stage = filled SHAB count + 1" → refuted.
+* "the first TRIGGER is always the point of no return" → refuted.
+* "`EnumUnit_S14.tbl` might be missing" / "S14's 13 are a manifest omission" /
+  "asteroids are exempt from the manifest" → S14's 13 are **dangling
+  deployments**. NEEDS-HUMAN: fly S14.
+* "`StageMessageSet_S02.tbl` is not in the pak" → it is.
+* "`S28_p1` has an asteroid volume with no definition" → refuted.
+* "`test_s8p1_asteroid.tbl` is test-only" → refuted.
+* "the settings family has 28 or 29 objects" → 24.
+
+## ISL / mission scripting
+
+* "the bytecode is in the `.embsec_` sections" → refuted.
+* "only 31 built-ins take a unit" → refuted.
+* "`sub_8230C398` is the message pump" → refuted.
+* "`bus+8216` is the subscriber registry" → refuted.
+* "the ScriptPhase vtable is ≥200 slots" → 113.
+
+## IDXD, paks and naming
+
+* "IDXD record keys are `name_hash`" → record keys are **`tag_hash`**
+  (case-SENSITIVE); `name_hash` is case-INSENSITIVE and used for pak keys.
+* "pak TOC order is stage order" / "TOC order is semantic order" → it is not.
+* "the executable holds the asset names" → the image names **no data value at
+  all**; that route is powerless.
+* "the image might name a data VALUE" → powerless.
+* "the XPR2 manifest names hash to the DefTables tables" → refuted.
+* "the `DefTables` model names are unreachable" → reachable via the `Enumerate`
+  declaration tables (1 413/1 425, 99.2 %).
+* "the `GP_MAIN_GAME_*` unnamed block is undiscovered data" → refuted.
+* "each `GP_MAIN_GAME_*` `Enumerate` object declares something" → refuted.
+* "`GP_HANGAR_ARSENAL` is missing data tables" → refuted.
+* "the `Enumeration` self-index can name objects" → a self-index names
+  **records, not files**.
+* "a per-pak prefix might close the 2D blocker" → no.
+* "the `+` paths might name the 2D or `GP_READY_ROOM` keys" → the `+`-dictionary
+  route is exhausted, 0 of 1 817.
+* "the `game:\` paths are unresolved" → refuted.
+* "a set-difference over file names can see reuse" → it cannot; **join per
+  USER**. Per-pak copies are ×6.
+
+## Units, weapons, effects and assets
+
+* "`Generic` (394) is the unit datasheet" → refuted.
+* "a loadout's `Arm1` names an item" → it names a **hardpoint slot**
+  (`Turret_NNN`), 59/59.
+* "`EnumUnit` and the unit datasheet share a vocabulary" → they do not.
+* "the roster is the `Generic.Model` set" → roster 40, `Generic.Model` 46,
+  `GameResourceID` 480 — three vocabularies.
+* "every unit ID is `UN_<l>###_<FACTION>_<name>`" → the grammar is
+  `UN_<letter>###_[<subkind>_]<FACTION>_<name>`.
+* "`_EXn` is the `Extra0n` index" → three different `EX` vocabularies exist.
+* "the only two `_EX5` names on the disc are the AA gun and the DeltaSaber" →
+  refuted.
+* "running the tutorial will instantiate the `_Ttrl` weapons" → refuted.
+* "the disc has exactly three `EnumWeapon` tables" → four.
+* "the `wep_NN` package gaps are unshipped weapons" / "`wep_85` is the tip of a
+  family" → `wep_85` is the **only** declared-but-unshipped asset (59/0/1/26).
+* "nothing is deployed without being declared" → refuted.
+* "effects are one namespace" → refuted.
+* "the 58 undeclared effect names are missing assets" → refuted.
+* "all five orphan effects are unshipped" → refuted.
+* "`eff_f0002` ships in `Base.xpr`" → refuted.
+* "`Base.xpr` holds more bound effects than `ptc_pack`" → refuted.
+* "the 34 unlocated are a scatter" → refuted.
+* "the 9 unlocated might be under another prefix" → refuted.
+* "`ptc_pack` has 532 names" → 727.
+* "the `_e`/`_f` law is effect-FIELD-specific" → it is the **faction law**,
+  564/564.
+* "a disc-wide `.xpr` byte search can show an effect is ABSENT" → it cannot.
+* "`rot_n001` is on the disc" → refuted.
+* "`rou_f004`'s mesh is in `Stage_S28.xpr`" → it is in `DeltaSaber_A.xpr`.
+* "`parent` + `_all` + `_child` is the composite-model convention" → refuted.
+  `_hangar` **is** real (59 of 166, 59/59 with a bare twin); `_all`/`_child` is
+  not.
+* "`Motion_guard_start` has no damage variants" → refuted.
+* "`CoverArea` bits 2 and 3 are mutually exclusive" → refuted.
+* "the 27 unresolved `NamePlate` values are missing objects" → refuted.
+
+## LOD, background and misc tables
+
+* "`EnumLODSet_*` is a per-stage family" → `EnumLODSet_test.tbl` serves 17
+  stages; 17+5+1 = 23.
+* "there are 8 orphan LOD tables" → 6.
+* "the orphans are stale copies of `_test`" → refuted.
+* "S25 is absent from the `DefTables` LOD families" → refuted.
+* "`BackGroundID` has no referent anywhere" → it is an **identity**.
+* "`BackGroundPackage == BG_<id>.xpr`" → refuted.
+* "`<X>ID` + `<X>Package` is a convention" → refuted.
+* "`Placement_*` / `RouteTest_*` are unattached" → refuted.
+* "the `AsteroidDefinition` join does not reproduce by hash" → it does.
+* "the 8-value frame is a new finding" → it was already in the corpus.
+
+## Loaders, config and tuning
+
+* "the config reader is XML" → INI.
+* "`sub_822F9498` is the unit-definition loader" → it is `PlayerParams`'s.
+* "`sub_822AE628` reads the main-game `Tweak`" → refuted.
+* "`sub_8230D1F8` is a rank table" → it is the stage-settings loader.
+* "`sub_82286BC8`'s key list is new" → refuted.
+* "`sub_825F2CF0` / `sub_825F2F88` read a post-processing table" → refuted.
+* "`Booster` is a new schema" / "`Booster` is the player craft's flight
+  envelope" → refuted; nothing selects `Booster`.
+* "the `AnalogRevice`/`Tweak` block is unreachable" → reachable
+  (`sub_821A6CF0`, base `0x820A1630`).
+* "a 0-xref string block has no reader" → refuted.
+* "the AI table was NEEDS-HUMAN" → refuted.
+* "the `PG*` HUD names are undocumented" → they are documented.
+* "a base-solver row identifies a FUNCTION" → it does not.
+* "a 64K-boundary base is low confidence" → **inverted**; it is high
+  confidence.
+* "the 0x820B0000 cluster is a false positive" → refuted.
+* "a pointer to a function in the image implies a registry" → refuted.
+  `.pdata` is not a registry.
+* "the 13 player-facing chatter tables are the WINGMAN tables" → refuted.
+* "the 8 undeclared chatter tables are tutorial chatter" → refuted.
+* "other datasheets ship a schema too" → refuted.
+
+## Encoding and text
+
+* "every IDXD string value is ASCII" → 6 non-ASCII values of 99 328.
+* "`文字列` is a dev placeholder" → they are Shift-JIS **type words**.

docs/re/data/isl-builtins-26-28-29-sites.txt

@@ -0,0 +1,909 @@
+# Every call site of ISL built-ins 26, 28, 29 and 101 across all 28 stage scripts.
+#
+# Regenerate with:
+#   python3 tools/re-capture/isl_builtin_sites.py 26,28,29,101 \
+#       --ssb <dir with StageNN.ssb> --craft <unitgroup.py --all output>
+#
+# Columns: stage  offset  builtin  slot8  slot4-name  slot4-raw  symtype  before  after
+# slot8 is the double operand; the handler multiplies it by 0.01 before sending it.
+#
+Stage01	0x0009C8	29	0	TCN001	0x1B	type2	[35,118,12]	[12,29,15]
+Stage01	0x000A44	29	0	TCN002	0x1E	type2	[12,29,12]	[15,12,30]
+Stage01	0x001A5C	29	100	TCN001	0x1B	type2	[127,123,8]	[35,11,58]
+Stage01	0x0028A8	101	-	?	None	typeNone	[11,95,116]	[100,124,93]
+Stage01	0x002CF8	101	-	?	None	typeNone	[20,20,116]	[100,124,93]
+Stage01	0x003210	101	-	?	None	typeNone	[11,9,116]	[100,124,93]
+Stage01	0x007370	28	10	TCN002	0x1E	type2	[1,1,1]	[29,30,64]
+Stage01	0x0073B0	29	0	TCN002	0x1E	type2	[1,1,28]	[30,64,64]
+Stage01	0x00EDAC	29	0	TCN001	0x1B	type2	[35,118,12]	[12,15,29]
+Stage01	0x00EE80	29	0	TCN002	0x1E	type2	[29,12,15]	[12,15,29]
+Stage01	0x00EF54	29	0	TCN003	0x20	type2	[29,12,15]	[12,15,30]
+Stage01	0x00F094	28	100	ADT201	0x3	type2	[12,15,30]	[12,15,30]
+Stage01	0x00F1D4	28	100	ADT202	0x6	type2	[12,15,30]	[12,3,15]
+Stage01	0x00F348	28	100	ADS221	0x7	type2	[12,3,15]	[12,3,15]
+Stage01	0x00F4BC	28	200	ADS222	0xB	type2	[12,3,15]	[12,15,28]
+Stage01	0x00F590	28	100	ADS223	0xE	type2	[28,12,15]	[12,15,12]
+Stage01	0x0100B0	29	100	TCN001	0x1B	type2	[127,123,8]	[35,103,1]
+Stage01	0x010398	28	10	TCN002	0x1E	type2	[1,1,1]	[29,30,11]
+Stage01	0x0103D8	29	0	TCN002	0x1E	type2	[1,1,28]	[30,11,58]
+Stage01	0x01060C	28	100	ADT203	0xA	type2	[15,30,47]	[103,69,63]
+Stage01	0x0108B4	28	100	ADT204	0xD	type2	[58,15,30]	[47,1,1]
+Stage01	0x010B40	28	100	ADS224	0x11	type2	[58,3,15]	[1,11,58]
+Stage01	0x010CE8	28	100	ADS225	0x13	type2	[58,3,15]	[1,11,58]
+Stage01	0x010DF0	28	100	ADT205	0x10	type2	[11,58,15]	[30,47,20]
+Stage01	0x01115C	28	200	ADS227	0x17	type2	[57,3,15]	[58,15,28]
+Stage01	0x011230	28	100	ADS226	0x15	type2	[28,58,15]	[48,92,1]
+Stage01	0x0115CC	28	100	ADS228	0x19	type2	[58,3,15]	[1,11,58]
+Stage01	0x011774	28	100	ADS229	0x1A	type2	[58,3,15]	[1,11,95]
+Stage01	0x01184C	101	-	?	None	typeNone	[11,95,116]	[100,124,93]
+Stage01	0x011D58	101	-	?	None	typeNone	[20,20,116]	[100,124,93]
+Stage01	0x0127AC	101	-	?	None	typeNone	[11,9,116]	[100,124,93]
+Stage02	0x000E6C	29	0	TCN001	0x4B	type2	[35,118,12]	[12,15,12]
+Stage02	0x002D14	26	0	TCN131	0x57	type2	[14,77,11]	[11,116,127]
+Stage02	0x002E0C	29	100	TCN001	0x4B	type2	[127,123,8]	[35,103,30]
+Stage02	0x003220	29	0	TCN002	0x4E	type2	[1,1,1]	[11,58,15]
+Stage02	0x004DA8	101	-	?	None	typeNone	[11,95,116]	[100,124,93]
+Stage02	0x005274	101	-	?	None	typeNone	[11,20,116]	[100,124,93]
+Stage02	0x0059BC	101	-	?	None	typeNone	[20,20,116]	[100,124,93]
+Stage02	0x0060A8	101	-	?	None	typeNone	[11,9,116]	[100,124,93]
+Stage02	0x01586C	29	0	TCN001	0x4B	type2	[35,118,12]	[12,15,12]
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+Stage02	0x0186DC	29	0	TCN002	0x4E	type2	[1,1,1]	[11,58,3]
+Stage02	0x019204	101	-	?	None	typeNone	[11,95,116]	[100,124,93]
+Stage02	0x0196D0	101	-	?	None	typeNone	[11,20,116]	[100,124,93]
+Stage02	0x01A21C	101	-	?	None	typeNone	[20,20,116]	[100,124,93]
+Stage02	0x01E114	26	0	ADN207	0x2A	type2	[79,7,70]	[26,11,47]
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+Stage02	0x01E58C	26	0	ADN207	0x2A	type2	[80,7,70]	[26,11,47]
+Stage02	0x01E5CC	26	0	TCN208	0x68	type2	[7,70,26]	[11,47,20]
+Stage02	0x01E854	26	0	ADN207	0x2A	type2	[80,7,70]	[26,11,47]
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+Stage02	0x0260A0	26	80	TCN325	0x6A	type2	[26,12,15]	[12,15,26]
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+Stage02	0x029244	29	100	ADT302	0x37	type2	[30,15,19]	[48,47,47]
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+Stage02	0x02B530	101	-	?	None	typeNone	[11,95,116]	[100,124,93]
+Stage02	0x02B9FC	101	-	?	None	typeNone	[11,20,116]	[100,124,93]
+Stage02	0x02C000	101	-	?	None	typeNone	[6,11,116]	[100,124,93]
+Stage02	0x02C524	101	-	?	None	typeNone	[20,20,116]	[100,124,93]
+Stage02	0x02D018	101	-	?	None	typeNone	[11,9,116]	[100,124,93]
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+Stage02	0x02D658	26	0	ADT303	0x3C	type2	[64,90,11]	[64,90,11]
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+Stage02	0x02DDF8	26	0	ADT308	0x49	type2	[64,90,11]	[64,90,11]
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+Stage03	0x002810	29	0	TCN002	0x24	type2	[30,91,47]	[11,58,19]
+Stage03	0x0034E8	101	-	?	None	typeNone	[11,95,116]	[100,124,93]
+Stage03	0x0039B4	101	-	?	None	typeNone	[11,20,116]	[100,124,93]
+Stage03	0x00424C	101	-	?	None	typeNone	[20,20,116]	[100,124,93]
+Stage03	0x004720	101	-	?	None	typeNone	[11,9,116]	[100,124,93]
+Stage03	0x00ABB4	29	0	TCN001	0x21	type2	[35,118,12]	[12,15,12]
+Stage03	0x00B0CC	29	0	TCT207	0x42	type2	[15,19,30]	[12,15,19]
+Stage03	0x00C720	29	100	TCN001	0x21	type2	[116,123,8]	[35,11,58]
+Stage03	0x00DD7C	101	-	?	None	typeNone	[11,95,116]	[100,124,93]
+Stage03	0x00E248	101	-	?	None	typeNone	[11,20,116]	[100,124,93]
+Stage03	0x00E84C	101	-	?	None	typeNone	[6,11,116]	[100,124,93]
+Stage03	0x00EFF8	101	-	?	None	typeNone	[20,20,116]	[100,124,93]
+Stage03	0x00F844	29	0	TCT207	0x42	type2	[64,19,11]	[5,11,20]
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+Stage03	0x00FC6C	29	0	TCT209	0x46	type2	[19,19,11]	[5,11,20]
+Stage03	0x00FE34	29	100	TCT207	0x42	type2	[11,20,20]	[11,20,20]
+Stage03	0x00FF50	29	100	TCT207	0x42	type2	[11,20,20]	[11,20,105]
+Stage03	0x01584C	29	0	TCN001	0x21	type2	[35,118,12]	[12,15,12]
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+Stage03	0x0191FC	101	-	?	None	typeNone	[11,95,116]	[100,124,93]
+Stage03	0x0196C8	101	-	?	None	typeNone	[11,20,116]	[100,124,93]
+Stage03	0x019CCC	101	-	?	None	typeNone	[6,11,116]	[100,124,93]
+Stage03	0x019ED4	101	-	?	None	typeNone	[6,11,116]	[100,124,93]
+Stage03	0x01A744	101	-	?	None	typeNone	[11,9,116]	[100,124,93]
+Stage03	0x01BC10	28	2000	ADT303	0x1D	type2	[15,30,91]	[69,47,69]
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+Stage04	0x002228	29	100	TCN001	0x15	type2	[127,123,8]	[35,11,69]
+Stage04	0x0026D0	101	-	?	None	typeNone	[11,95,116]	[100,124,93]
+Stage04	0x002BCC	101	-	?	None	typeNone	[11,20,116]	[100,124,93]
+Stage04	0x003390	101	-	?	None	typeNone	[20,20,116]	[100,124,93]
+Stage04	0x003834	101	-	?	None	typeNone	[11,9,116]	[100,124,93]
+Stage04	0x005ED0	29	0	TCN001	0x15	type2	[35,118,12]	[12,15,12]
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+Stage04	0x0084AC	101	-	?	None	typeNone	[11,95,116]	[100,124,93]
+Stage04	0x0089A8	101	-	?	None	typeNone	[11,20,116]	[100,124,93]
+Stage04	0x009030	101	-	?	None	typeNone	[11,20,116]	[100,124,93]
+Stage04	0x0099DC	101	-	?	None	typeNone	[11,9,116]	[100,124,93]
+Stage04	0x009D40	28	150	TCN205	0x25	type2	[9,115,69]	[64,11,20]
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+Stage05	0x002E6C	101	-	?	None	typeNone	[20,9,116]	[100,93,124]
+Stage05	0x003BAC	101	-	?	None	typeNone	[20,20,116]	[100,93,124]
+Stage05	0x003F28	28	150	TCN003	0x19	type2	[9,115,70]	[70,48,11]
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+Stage05	0x009734	101	-	?	None	typeNone	[20,9,116]	[100,93,124]
+Stage05	0x00A228	101	-	?	None	typeNone	[20,20,116]	[100,93,124]
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+Stage06	0x00330C	101	-	?	None	typeNone	[11,95,116]	[100,93,124]
+Stage06	0x003810	101	-	?	None	typeNone	[11,20,116]	[100,93,124]
+Stage06	0x003E94	101	-	?	None	typeNone	[11,9,116]	[100,93,124]
+Stage06	0x0040D4	101	-	?	None	typeNone	[6,11,116]	[100,93,124]
+Stage06	0x009B50	29	0	TCN001	0x26	type2	[118,12,15]	[12,15,12]
+Stage06	0x00BEC4	29	100	TCN001	0x26	type2	[8,127,123]	[35,119,11]
+Stage06	0x00C168	101	-	?	None	typeNone	[11,95,116]	[100,93,124]
+Stage06	0x00C66C	101	-	?	None	typeNone	[11,20,116]	[100,93,124]
+Stage06	0x00CCF0	101	-	?	None	typeNone	[11,9,116]	[100,93,124]
+Stage06	0x00D274	101	-	?	None	typeNone	[20,20,116]	[100,93,124]
+Stage06	0x0119AC	29	0	TCN001	0x26	type2	[118,12,15]	[12,15,29]
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+Stage06	0x013B60	101	-	?	None	typeNone	[11,95,116]	[100,93,124]
+Stage06	0x01405C	101	-	?	None	typeNone	[11,20,116]	[100,93,124]
+Stage06	0x014724	101	-	?	None	typeNone	[20,20,116]	[100,93,124]
+Stage06	0x014F64	101	-	?	None	typeNone	[11,9,116]	[100,93,124]
+Stage06	0x01845C	26	0	TCN350	0x3A	type2	[64,11,64]	[1,1,1]
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+Stage07	0x002788	101	-	?	None	typeNone	[11,95,116]	[100,93,124]
+Stage07	0x002BD0	101	-	?	None	typeNone	[11,20,116]	[100,93,124]
+Stage07	0x00324C	101	-	?	None	typeNone	[11,20,116]	[100,93,124]
+Stage07	0x0034D4	101	-	?	None	typeNone	[11,9,116]	[100,93,124]
+Stage07	0x003714	101	-	?	None	typeNone	[6,11,116]	[100,93,124]
+Stage07	0x00AB0C	29	0	TCN001	0x1C	type2	[12,12,12]	[15,15,15]
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+Stage07	0x00CDB8	101	-	?	None	typeNone	[11,95,116]	[100,93,124]
+Stage07	0x00D200	101	-	?	None	typeNone	[11,20,116]	[100,93,124]
+Stage07	0x00D87C	101	-	?	None	typeNone	[11,20,116]	[100,93,124]
+Stage07	0x00E4A8	101	-	?	None	typeNone	[20,69,116]	[100,93,124]
+Stage07	0x00ED78	101	-	?	None	typeNone	[11,9,116]	[100,93,124]
+Stage08	0x001F44	29	0	TCN001	0x1E	type2	[15,12,15]	[15,15,15]
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+Stage08	0x0036D0	101	-	?	None	typeNone	[20,9,116]	[100,93,124]
+Stage08	0x004294	101	-	?	None	typeNone	[6,11,116]	[100,93,124]
+Stage08	0x006C54	28	1000	ADS151a	0x45	type2	[15,47,30]	[29,58,15]
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+Stage08	0x00EFF4	101	-	?	None	typeNone	[20,9,116]	[100,93,124]
+Stage08	0x00FD4C	101	-	?	None	typeNone	[20,20,116]	[100,93,124]
+Stage09	0x000974	29	0	TCN001	0x28	type2	[35,118,12]	[12,15,12]
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+Stage09	0x003610	101	-	?	None	typeNone	[11,95,116]	[100,124,93]
+Stage09	0x003A20	101	-	?	None	typeNone	[11,20,116]	[100,124,93]
+Stage09	0x003C68	101	-	?	None	typeNone	[11,20,116]	[100,124,93]
+Stage09	0x00426C	101	-	?	None	typeNone	[6,11,116]	[100,124,93]
+Stage09	0x004A44	101	-	?	None	typeNone	[11,9,116]	[100,124,93]
+Stage09	0x00851C	29	0	TCN001	0x28	type2	[35,118,12]	[12,15,12]
+Stage09	0x009E64	29	100	TCN001	0x28	type2	[116,123,8]	[35,11,58]
+Stage09	0x00A1C0	28	1000	ADS251a	0x44	type2	[12,15,30]	[29,12,15]
+Stage09	0x00A200	29	40	ADS251a	0x44	type2	[15,30,28]	[12,15,30]
+Stage09	0x00A340	28	1000	ADS251b	0x46	type2	[12,15,30]	[29,47,47]
+Stage09	0x00A380	29	40	ADS251b	0x46	type2	[15,30,28]	[47,47,1]
+Stage09	0x00A6D0	101	-	?	None	typeNone	[11,95,116]	[100,124,93]
+Stage09	0x00AAE0	101	-	?	None	typeNone	[11,20,116]	[100,124,93]
+Stage09	0x00ACE8	101	-	?	None	typeNone	[6,11,116]	[100,124,93]
+Stage09	0x00B2D0	101	-	?	None	typeNone	[7,9,116]	[100,124,93]
+Stage09	0x00C38C	28	150	TCN001	0x28	type2	[115,9,115]	[28,11,64]
+Stage09	0x00C3CC	28	150	TCN002	0x2B	type2	[9,115,28]	[11,64,64]
+Stage09	0x00FDC4	29	0	TCN001	0x28	type2	[114,114,12]	[12,15,12]
+Stage09	0x010684	28	500	ADT301	0x14	type2	[15,12,15]	[12,15,12]
+Stage09	0x011790	29	100	TCN001	0x28	type2	[116,123,8]	[35,11,58]
+Stage09	0x011E84	101	-	?	None	typeNone	[11,95,116]	[100,124,93]
+Stage09	0x012294	101	-	?	None	typeNone	[11,20,116]	[100,124,93]
+Stage09	0x012B60	101	-	?	None	typeNone	[69,69,116]	[100,124,93]
+Stage09	0x0131AC	101	-	?	None	typeNone	[11,9,116]	[100,124,93]
+Stage09	0x017BE4	28	500	ADT302	0x18	type2	[3,15,47]	[64,1,1]
+Stage10	0x0006DC	29	0	TCN001	0xE	type2	[118,75,12]	[12,3,15]
+Stage10	0x000910	28	2000	ADT001	0x2	type2	[15,30,47]	[12,15,47]
+Stage10	0x000A38	28	500	ADS002	0x1	type2	[12,15,47]	[12,15,47]
+Stage10	0x000B60	28	500	ADS003	0x5	type2	[12,15,47]	[1,1,1]
+Stage10	0x000F38	29	100	TCN001	0xE	type2	[8,127,123]	[35,119,11]
+Stage10	0x00101C	101	-	?	None	typeNone	[11,95,116]	[100,93,124]
+Stage10	0x0013A8	101	-	?	None	typeNone	[11,9,116]	[100,93,124]
+Stage10	0x001620	101	-	?	None	typeNone	[11,20,116]	[100,93,124]
+Stage10	0x002394	28	500	ADS004	0x7	type2	[64,128,47]	[1,11,20]
+Stage10	0x002BA0	28	500	ADS005	0x9	type2	[64,128,47]	[1,11,20]
+Stage10	0x0033AC	28	500	ADS006	0xA	type2	[64,128,47]	[1,11,20]
+Stage10	0x003BB8	28	500	ADS007	0xB	type2	[64,128,47]	[1,11,20]
+Stage10	0x0043C4	28	500	ADS008	0xC	type2	[64,128,47]	[1,11,20]
+Stage10	0x004BD0	28	500	ADS009	0xD	type2	[64,128,47]	[1,11,20]
+Stage10	0x0053DC	28	500	ADS010	0x0	type2	[64,128,47]	[1,11,20]
+Stage10	0x005BE8	28	500	ADS011	0x4	type2	[64,128,47]	[1,11,20]
+Stage10	0x006554	28	500	ADS013	0x8	type2	[64,128,47]	[1,11,20]
+Stage11	0x000744	29	0	TCN001	0x18	type2	[35,118,12]	[12,15,12]
+Stage11	0x001610	29	100	TCN001	0x18	type2	[8,127,123]	[35,11,58]
+Stage11	0x0017D8	28	1000	ADS151a	0x27	type2	[15,47,30]	[29,58,15]
+Stage11	0x001818	29	40	ADS151a	0x27	type2	[47,30,28]	[58,15,47]
+Stage11	0x0019AC	28	1000	ADS151b	0x29	type2	[15,47,30]	[29,1,1]
+Stage11	0x0019EC	29	40	ADS151b	0x29	type2	[47,30,28]	[1,1,1]
+Stage11	0x001B0C	101	-	?	None	typeNone	[11,95,116]	[100,124,93]
+Stage11	0x001F54	101	-	?	None	typeNone	[11,20,116]	[100,124,93]
+Stage11	0x0025D8	101	-	?	None	typeNone	[11,9,116]	[100,124,93]
+Stage11	0x002818	101	-	?	None	typeNone	[6,11,116]	[100,124,93]
+Stage11	0x00B070	29	0	TCN001	0x18	type2	[35,118,12]	[12,15,12]
+Stage11	0x00BFB8	29	100	TCN001	0x18	type2	[8,127,123]	[35,1,1]
+Stage11	0x00C0D8	101	-	?	None	typeNone	[11,95,116]	[100,124,93]
+Stage11	0x00C520	101	-	?	None	typeNone	[11,20,116]	[100,124,93]
+Stage11	0x00CBA4	101	-	?	None	typeNone	[11,9,116]	[100,124,93]
+Stage11	0x00CDE4	101	-	?	None	typeNone	[6,11,116]	[100,124,93]
+Stage12	0x0012D0	29	0	TCN001	0x20	type2	[12,12,12]	[75,8,11]
+Stage12	0x001564	29	100	TCN001	0x20	type2	[8,127,123]	[35,119,1]
+Stage12	0x0033CC	101	-	?	None	typeNone	[20,9,116]	[100,93,124]
+Stage12	0x00403C	101	-	?	None	typeNone	[6,11,116]	[100,93,124]
+Stage13	0x0012C4	29	0	TCN001	0x16	type2	[12,12,12]	[15,15,15]
+Stage13	0x001D74	26	50	TCN013	0x25	type2	[3,15,1]	[3,15,1]
+Stage13	0x0027DC	28	150	ADN004	0x8	type2	[47,92,3]	[15,3,28]
+Stage13	0x002914	28	150	ADN005	0xB	type2	[28,15,3]	[15,47,28]
+Stage13	0x002A00	28	150	ADN012	0x6	type2	[28,15,47]	[15,47,47]
+Stage13	0x0031BC	29	100	TCN001	0x16	type2	[116,8,123]	[35,119,11]
+Stage13	0x003348	101	-	?	None	typeNone	[20,20,116]	[100,93,124]
+Stage13	0x004EC4	101	-	?	None	typeNone	[20,69,116]	[100,93,124]
+Stage13	0x0098A0	28	150	ADN002	0x3	type2	[20,9,57]	[15,47,47]
+Stage13	0x00A68C	28	500	ADS051a	0x34	type2	[64,11,58]	[15,47,92]
+Stage13	0x00A894	28	500	ADS051b	0x36	type2	[92,30,58]	[15,47,92]
+Stage13	0x00AA9C	28	500	ADS051c	0x37	type2	[92,30,58]	[15,47,92]
+Stage13	0x00BA00	28	150	ADN015	0xE	type2	[64,11,57]	[15,92,64]
+Stage13	0x00BE08	28	150	ADN017	0x12	type2	[64,11,57]	[15,47,92]
+Stage14	0x001230	29	0	TCN001	0x18	type2	[12,12,12]	[15,15,92]
+Stage14	0x001394	26	80	TCN003	0x24	type2	[15,15,92]	[25,15,30]
+Stage14	0x001548	28	500	ADT102	0x3	type2	[15,30,15]	[30,47,92]
+Stage14	0x001714	28	500	ADT103	0x6	type2	[47,92,15]	[30,47,92]
+Stage14	0x0018E0	28	500	ADT104	0x8	type2	[47,92,15]	[30,47,92]
+Stage14	0x00242C	29	100	TCN001	0x18	type2	[8,127,123]	[35,119,11]
+Stage14	0x002510	101	-	?	None	typeNone	[11,95,116]	[100,93,124]
+Stage14	0x002960	101	-	?	None	typeNone	[11,9,116]	[100,93,124]
+Stage14	0x002D84	101	-	?	None	typeNone	[20,20,116]	[100,93,124]
+Stage14	0x003784	28	500	ADT105	0xA	type2	[64,58,15]	[30,47,47]
+Stage14	0x003E90	28	500	ADT108	0x10	type2	[64,58,15]	[30,47,1]
+Stage14	0x004548	28	500	ADT114	0xB	type2	[64,58,15]	[30,47,47]
+Stage14	0x007334	29	0	TCN201	0x29	type2	[12,12,12]	[15,30,47]
+Stage14	0x00748C	28	500	ADT201	0x5	type2	[15,30,47]	[15,15,15]
+Stage14	0x007F18	29	100	TCN201	0x29	type2	[8,127,123]	[35,119,11]
+Stage14	0x007FFC	101	-	?	None	typeNone	[11,95,116]	[100,93,124]
+Stage14	0x0083C4	101	-	?	None	typeNone	[11,9,116]	[100,93,124]
+Stage14	0x008644	101	-	?	None	typeNone	[11,20,116]	[100,93,124]
+Stage15	0x0014F8	29	0	TCN001	0x3A	type2	[12,12,12]	[15,15,15]
+Stage15	0x002390	29	0	TCN008	0x59	type2	[15,47,30]	[1,15,48]
+Stage15	0x002C68	28	150	ADN101	0x1	type2	[15,48,92]	[15,28,15]
+Stage15	0x002D00	28	150	ADN102	0x2	type2	[92,28,15]	[15,3,1]
+Stage15	0x002FC8	28	150	ADN103	0x5	type2	[15,48,92]	[15,3,15]
+Stage15	0x0032C0	28	150	ADN104	0xB	type2	[48,47,92]	[15,3,15]
+Stage15	0x003564	28	150	ADN106	0x18	type2	[15,48,92]	[15,28,15]
+Stage15	0x0035FC	28	150	ADN109	0x2C	type2	[92,28,15]	[15,15,47]
+Stage15	0x003F50	29	100	TCN001	0x3A	type2	[116,8,123]	[35,119,11]
+Stage15	0x0040DC	101	-	?	None	typeNone	[20,20,116]	[100,93,124]
+Stage15	0x00563C	101	-	?	None	typeNone	[20,69,116]	[100,93,124]
+Stage15	0x00DE90	29	0	TCN001	0x3A	type2	[12,12,12]	[15,15,15]
+Stage15	0x00E970	29	0	TCN008	0x59	type2	[47,92,30]	[15,48,92]
+Stage15	0x00F198	28	150	ADT201	0x28	type2	[47,92,30]	[15,1,30]
+Stage15	0x00F2C0	28	150	ADT202	0x30	type2	[15,1,30]	[15,1,28]
+Stage15	0x00F37C	28	150	ADN203	0xF	type2	[28,15,1]	[15,28,15]
+Stage15	0x00F414	28	150	ADN204	0x15	type2	[1,28,15]	[15,28,15]
+Stage15	0x00F4AC	28	150	ADN205	0x1C	type2	[15,28,15]	[15,28,15]
+Stage15	0x00F544	28	150	ADN206	0x21	type2	[15,28,15]	[15,28,15]
+Stage15	0x00F5DC	28	150	ADN207	0x27	type2	[15,28,15]	[15,28,15]
+Stage15	0x00F674	28	150	ADN208	0x2F	type2	[15,28,15]	[15,28,15]
+Stage15	0x00F70C	28	150	ADN209	0x36	type2	[15,28,15]	[15,15,28]
+Stage15	0x00F7FC	28	500	ADN210	0x4	type2	[28,15,15]	[47,92,1]
+Stage15	0x00F980	28	500	ADN211	0x9	type2	[92,1,15]	[47,92,1]
+Stage15	0x00FB04	28	500	ADN212	0x10	type2	[92,1,15]	[47,47,92]
+Stage15	0x00FCDC	28	500	ADN213	0x16	type2	[92,1,15]	[47,47,92]
+Stage15	0x00FEB4	28	500	ADN214	0x1D	type2	[92,1,15]	[47,47,92]
+Stage15	0x0102DC	29	100	TCN001	0x3A	type2	[8,127,123]	[35,119,11]
+Stage15	0x0104C4	101	-	?	None	typeNone	[20,9,116]	[100,93,124]
+Stage15	0x0110CC	101	-	?	None	typeNone	[20,20,116]	[100,93,124]
+Stage15	0x013368	28	500	ADN215	0x22	type2	[20,58,15]	[47,92,1]
+Stage15	0x01358C	28	500	ADN216	0x2A	type2	[20,58,15]	[47,92,11]
+Stage15	0x01378C	28	500	ADN217	0x32	type2	[20,58,15]	[47,47,92]
+Stage15	0x0139E0	28	500	ADN218	0x37	type2	[20,58,15]	[47,47,92]
+Stage15	0x013C34	28	500	ADN219	0x39	type2	[20,58,15]	[47,47,92]
+Stage15	0x013E88	28	500	ADN220	0xA	type2	[20,58,15]	[47,92,11]
+Stage15	0x014088	28	500	ADN221	0x11	type2	[20,58,15]	[47,92,11]
+Stage15	0x014924	28	150	ADN222	0x17	type2	[64,11,57]	[15,64,64]
+Stage15	0x014D28	28	500	ADN223	0x1E	type2	[11,58,15]	[47,47,92]
+Stage15	0x015170	28	150	ADN224	0x23	type2	[64,11,57]	[15,64,64]
+Stage15	0x01553C	28	500	ADN225	0x2B	type2	[11,58,15]	[47,92,64]
+Stage15	0x0158E8	28	500	ADN226	0x33	type2	[11,58,15]	[47,92,58]
+Stage15	0x015A84	28	500	ADN227	0x38	type2	[92,58,15]	[47,92,64]
+Stage16	0x0004F4	29	100	TCN001	0x1	type2	[8,127,123]	[35,119,11]
+Stage16	0x0005D8	101	-	?	None	typeNone	[11,95,116]	[100,93,124]
+Stage16	0x000A28	101	-	?	None	typeNone	[11,9,116]	[100,93,124]
+Stage16	0x000E4C	101	-	?	None	typeNone	[140,140,116]	[100,93,124]
+Stage18	0x000488	28	0	TCN001	0xB	type2	[35,8,12]	[52,1,11]
+Stage18	0x0009D4	26	0	ADT101	0x0	type2	[1,11,18]	[13,0,97]
+Stage18	0x000D2C	26	0	ADT102	0x2	type2	[1,11,18]	[13,0,11]
+Stage18	0x000E30	26	0	ADT103	0x4	type2	[0,11,18]	[13,0,11]
+Stage18	0x000F34	26	0	ADT104	0x5	type2	[0,11,18]	[13,0,11]
+Stage18	0x0013E4	26	0	ADT105	0x6	type2	[1,11,18]	[13,0,11]
+Stage18	0x0014E8	26	0	ADT106	0x7	type2	[0,11,18]	[13,0,11]
+Stage18	0x0015EC	26	0	ADT107	0x8	type2	[0,11,18]	[13,0,11]
+Stage18	0x001AB0	26	0	ADT108	0x9	type2	[1,11,18]	[13,0,97]
+Stage18	0x001E2C	28	100	TCN001	0xB	type2	[4,1,11]	[12,3,15]
+Stage18	0x0029FC	26	100	TCN001	0xB	type2	[6,11,20]	[]
+Stage19	0x0003D4	28	0	TCN001	0x7	type2	[35,8,12]	[52,1,11]
+Stage19	0x000CD4	28	100	TCN001	0x7	type2	[11,104,4]	[1,11,69]
+Stage19	0x000F0C	26	0	ADS101	0x0	type2	[16,0,12]	[26,84,4]
+Stage19	0x000F4C	26	0	ADS102	0x1	type2	[0,12,26]	[84,4,97]
+Stage19	0x001010	28	0	TCN001	0x7	type2	[4,97,4]	[12,3,15]
+Stage19	0x0012F8	26	0	ADS104	0x2	type2	[4,16,0]	[84,4,97]
+Stage19	0x001394	28	100	TCN001	0x7	type2	[84,4,97]	[12,3,15]
+Stage19	0x0019F4	26	100	TCN001	0x7	type2	[6,11,20]	[]
+Stage20	0x0026C0	26	100	TCN001	0xB	type2	[6,11,20]	[]
+Stage21	0x0002A8	28	0	TCN001	0x2	type2	[35,8,12]	[26,52,1]
+Stage21	0x0002E8	26	40	TCN001	0x2	type2	[8,12,28]	[52,1,12]
+Stage21	0x000B58	28	100	TCN001	0x2	type2	[0,84,4]	[97,4,12]
+Stage21	0x0012F4	26	100	TCN001	0x2	type2	[6,11,20]	[]
+Stage22	0x00098C	26	0	ADT101	0x0	type2	[1,11,18]	[0,11,69]
+Stage22	0x000AD0	26	0	ADT102	0x2	type2	[69,11,18]	[0,11,69]
+Stage22	0x001384	26	0	ADS103	0x1	type2	[11,69,0]	[97,1,11]
+Stage22	0x001470	26	0	ADT104	0x3	type2	[1,11,18]	[0,11,69]
+Stage22	0x001868	26	0	ADT106	0x5	type2	[1,11,18]	[0,11,69]
+Stage22	0x001F1C	26	0	ADT107	0x6	type2	[1,11,18]	[0,11,69]
+Stage22	0x002130	26	100	TCN001	0x7	type2	[6,11,20]	[]
+Stage23	0x0002A8	28	0	TCN001	0x3	type2	[35,8,12]	[52,1,11]
+Stage23	0x000898	26	0	ADS105	0x2	type2	[4,16,0]	[84,4,97]
+Stage23	0x000B98	28	100	TCN001	0x3	type2	[11,104,4]	[1,11,69]
+Stage23	0x0012AC	26	100	TCN001	0x3	type2	[6,11,20]	[]
+Stage24	0x001274	29	0	ADT108	0x1E	type2	[12,30,117]	[12,12,12]
+Stage24	0x001EE8	29	100	TCN001	0x2C	type2	[127,123,8]	[35,119,1]
+Stage24	0x0029B0	29	100	ADT108	0x1E	type2	[15,47,64]	[20,64,11]
+Stage24	0x0045F8	29	100	ADT109	0x22	type2	[15,48,47]	[64,1,7]
+Stage24	0x004A44	29	0	ADT109	0x22	type2	[58,30,117]	[64,7,58]
+Stage24	0x0051B8	29	100	ADT103	0x8	type2	[30,15,47]	[64,64,1]
+Stage24	0x0056B8	29	0	ADT103	0x8	type2	[58,30,117]	[64,20,4]
+Stage24	0x007094	101	-	?	None	typeNone	[20,20,116]	[100,124,93]
+Stage24	0x007304	101	-	?	None	typeNone	[11,95,116]	[100,124,93]
+Stage24	0x007710	101	-	?	None	typeNone	[11,20,116]	[100,124,93]
+Stage24	0x007DBC	101	-	?	None	typeNone	[11,9,116]	[100,124,93]
+Stage25	0x001790	28	100	ADN355	0x21	type2	[15,12,15]	[12,15,28]
+Stage25	0x001864	28	100	ADN350	0xF	type2	[28,12,15]	[12,15,28]
+Stage25	0x001938	28	100	ADN351	0x13	type2	[28,12,15]	[12,15,28]
+Stage25	0x001A0C	28	100	ADN352	0x17	type2	[28,12,15]	[12,15,28]
+Stage25	0x001AE0	28	100	ADN353	0x1B	type2	[28,12,15]	[12,15,28]
+Stage25	0x001BB4	28	100	ADN354	0x1E	type2	[28,12,15]	[12,15,28]
+Stage25	0x001C88	28	200	ADN310	0x1	type2	[28,12,15]	[12,15,117]
+Stage25	0x004218	29	100	TCN001	0x27	type2	[127,123,8]	[35,119,1]
+Stage25	0x00440C	28	300	ADN312	0x5	type2	[11,57,16]	[1,11,57]
+Stage25	0x0044F8	28	300	ADN313	0x9	type2	[11,57,16]	[1,11,58]
+Stage25	0x004600	28	600	ADN314	0xD	type2	[11,58,15]	[47,47,1]
+Stage25	0x004964	28	600	ADN315	0x11	type2	[11,58,15]	[47,47,1]
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+Stage25	0x005814	28	200	ADN356	0x23	type2	[5,57,15]	[145,47,47]
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+Stage25	0x01748C	101	-	?	None	typeNone	[11,20,116]	[100,124,93]
+Stage25	0x017AE8	101	-	?	None	typeNone	[11,9,116]	[100,124,93]
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+Stage26	0x003E10	101	-	?	None	typeNone	[11,20,116]	[100,124,93]
+Stage26	0x004414	101	-	?	None	typeNone	[6,11,116]	[100,124,93]
+Stage26	0x004664	101	-	?	None	typeNone	[11,9,116]	[100,124,93]
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+Stage27	0x002570	101	-	?	None	typeNone	[11,20,116]	[100,124,93]
+Stage27	0x002BBC	101	-	?	None	typeNone	[11,9,116]	[100,124,93]
+Stage27	0x00339C	101	-	?	None	typeNone	[20,20,116]	[100,124,93]
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+Stage28	0x00256C	101	-	?	None	typeNone	[20,20,116]	[100,124,93]
+Stage28	0x002958	101	-	?	None	typeNone	[11,9,116]	[100,124,93]
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+Stage29	0x01F52C	28	200	ADN101c	0x32	type2	[1,57,15]	[1,4,57]
+Stage29	0x01F64C	28	200	ADN101b	0x2F	type2	[4,57,15]	[1,4,57]
+Stage29	0x01F76C	28	120	ADN101a	0x2E	type2	[4,57,15]	[1,4,57]
+Stage29	0x01F88C	28	120	ADN102a	0x30	type2	[4,57,15]	[1,4,57]
+Stage29	0x01F9AC	28	300	ADN101e	0x40	type2	[4,57,15]	[1,4,57]
+Stage29	0x01FACC	28	200	ADN102b	0x33	type2	[4,57,15]	[1,4,57]
+Stage29	0x01FBEC	28	120	ADN103a	0x34	type2	[4,57,15]	[1,4,57]
+Stage29	0x01FD0C	28	120	ADN104a	0x3A	type2	[4,57,15]	[1,4,57]
+Stage29	0x01FE2C	28	300	ADN102e	0x4B	type2	[4,57,15]	[1,4,57]
+Stage29	0x01FF4C	28	200	ADN103b	0x39	type2	[4,57,15]	[1,4,57]
+Stage29	0x02006C	28	300	ADN101d	0x37	type2	[4,57,15]	[1,4,57]
+Stage29	0x02018C	28	200	ADN102c	0x38	type2	[4,57,15]	[1,4,57]
+Stage29	0x0202AC	28	300	ADN103e	0x54	type2	[4,57,15]	[1,4,57]
+Stage29	0x0203CC	28	300	ADN104e	0x5C	type2	[4,57,15]	[1,4,57]
+Stage29	0x0204F4	28	300	ADN101d	0x37	type2	[4,57,15]	[1,4,57]
+Stage29	0x020614	28	200	ADN101c	0x32	type2	[4,57,15]	[1,4,57]
+Stage29	0x020734	28	200	ADN101b	0x2F	type2	[4,57,15]	[1,4,57]
+Stage29	0x020854	28	200	ADN102c	0x38	type2	[4,57,15]	[1,4,57]
+Stage29	0x020974	28	120	ADN101a	0x2E	type2	[4,57,15]	[1,4,57]
+Stage29	0x020A94	28	200	ADN102b	0x33	type2	[4,57,15]	[1,4,57]
+Stage29	0x020BB4	28	300	ADN101e	0x40	type2	[4,57,15]	[1,4,57]
+Stage29	0x020CD4	28	300	ADN102e	0x4B	type2	[4,57,15]	[1,4,57]
+Stage29	0x020DF4	28	200	ADN103b	0x39	type2	[4,57,15]	[1,4,57]
+Stage29	0x020F14	28	120	ADN102a	0x30	type2	[4,57,15]	[1,4,57]
+Stage29	0x021034	28	120	ADN103a	0x34	type2	[4,57,15]	[1,4,57]
+Stage29	0x021154	28	120	ADN104a	0x3A	type2	[4,57,15]	[1,4,57]
+Stage29	0x021274	28	300	ADN103e	0x54	type2	[4,57,15]	[1,4,57]
+Stage29	0x021394	28	300	ADN104e	0x5C	type2	[4,57,15]	[1,4,57]
+Stage29	0x0214BC	28	200	ADN101b	0x2F	type2	[4,57,15]	[1,4,57]
+Stage29	0x0215DC	28	300	ADN101e	0x40	type2	[4,57,15]	[1,4,57]
+Stage29	0x0216FC	28	120	ADN101a	0x2E	type2	[4,57,15]	[1,4,57]
+Stage29	0x02181C	28	300	ADN102e	0x4B	type2	[4,57,15]	[1,4,57]
+Stage29	0x02193C	28	120	ADN102a	0x30	type2	[4,57,15]	[1,4,57]
+Stage29	0x021A5C	28	300	ADN103e	0x54	type2	[4,57,15]	[1,4,57]
+Stage29	0x021B7C	28	120	ADN103a	0x34	type2	[4,57,15]	[1,4,57]
+Stage29	0x021C9C	28	120	ADN104a	0x3A	type2	[4,57,15]	[1,4,57]
+Stage29	0x021DBC	28	120	ADN105a	0x43	type2	[4,57,15]	[1,4,57]
+Stage29	0x021EDC	28	120	ADN106a	0x4D	type2	[4,57,15]	[1,4,57]
+Stage29	0x021FFC	28	200	ADN101c	0x32	type2	[4,57,15]	[1,57,15]
+Stage29	0x0220F4	28	200	ADN102b	0x33	type2	[1,57,15]	[1,4,57]
+Stage29	0x022214	28	200	ADN102c	0x38	type2	[4,57,15]	[1,4,57]
+Stage29	0x022334	28	300	ADN104e	0x5C	type2	[4,57,15]	[1,57,15]
+Stage29	0x022434	28	300	ADN101e	0x40	type2	[1,57,15]	[1,4,57]
+Stage29	0x022554	28	200	ADN101b	0x2F	type2	[4,57,15]	[1,4,57]
+Stage29	0x022674	28	300	ADN102e	0x4B	type2	[4,57,15]	[1,4,57]
+Stage29	0x022794	28	120	ADN101a	0x2E	type2	[4,57,15]	[1,4,57]
+Stage29	0x0228B4	28	200	ADN101c	0x32	type2	[4,57,15]	[1,4,57]
+Stage29	0x0229D4	28	300	ADN101d	0x37	type2	[4,57,15]	[1,4,57]
+Stage29	0x022AF4	28	120	ADN102a	0x30	type2	[4,57,15]	[1,4,57]
+Stage29	0x022C14	28	120	ADN103a	0x34	type2	[4,57,15]	[1,4,57]
+Stage29	0x022D34	28	120	ADN104a	0x3A	type2	[4,57,15]	[1,4,57]
+Stage29	0x022E54	28	200	ADN102b	0x33	type2	[4,57,15]	[1,4,57]
+Stage29	0x022F74	28	300	ADN103e	0x54	type2	[4,57,15]	[1,4,57]
+Stage29	0x023094	28	120	ADN105a	0x43	type2	[4,57,15]	[1,4,57]
+Stage29	0x0231B4	28	200	ADN102c	0x38	type2	[4,57,15]	[1,4,57]
+Stage29	0x0232D4	28	120	ADN106a	0x4D	type2	[4,57,15]	[1,4,11]
+Stage29	0x023764	28	200	ADN141a	0x3E	type2	[16,16,16]	[145,47,47]
+Stage29	0x023EFC	28	200	ADN141b	0x48	type2	[16,16,16]	[29,145,47]
+Stage29	0x023F3C	29	50	ADN141b	0x48	type2	[16,16,28]	[145,47,47]
+Stage29	0x024420	28	200	ADN142a	0x49	type2	[16,16,16]	[145,47,47]
+Stage29	0x024BB8	28	200	ADN142b	0x52	type2	[16,16,16]	[29,145,47]
+Stage29	0x024BF8	29	50	ADN142b	0x52	type2	[16,16,28]	[145,47,47]
+Stage29	0x02517C	28	200	ADN143a	0x53	type2	[16,16,16]	[145,47,47]
+Stage29	0x025914	28	200	ADN143b	0x5A	type2	[16,16,16]	[29,145,47]
+Stage29	0x025954	29	50	ADN143b	0x5A	type2	[16,16,28]	[145,47,47]
+Stage29	0x025F78	28	200	ADN144a	0x5B	type2	[16,16,16]	[145,47,47]
+Stage29	0x026710	28	200	ADN144b	0x61	type2	[16,16,16]	[29,145,47]
+Stage29	0x026750	29	50	ADN144b	0x61	type2	[16,16,28]	[145,47,47]
+Stage29	0x026CD4	28	200	ADN145a	0x62	type2	[16,16,16]	[145,47,47]
+Stage29	0x02746C	28	200	ADN145b	0x65	type2	[16,16,16]	[29,145,47]
+Stage29	0x0274AC	29	50	ADN145b	0x65	type2	[16,16,28]	[145,47,47]
+Stage29	0x02783C	28	200	ADN121b	0x35	type2	[64,57,15]	[1,4,57]
+Stage29	0x02795C	28	120	ADN121a	0x31	type2	[4,57,15]	[1,4,57]
+Stage29	0x027A7C	28	120	ADN122a	0x36	type2	[4,57,15]	[1,4,57]
+Stage29	0x027B9C	28	200	ADN122b	0x3C	type2	[4,57,15]	[1,4,57]
+Stage29	0x027CBC	28	120	ADN123a	0x3D	type2	[4,57,15]	[1,4,57]
+Stage29	0x027DDC	28	200	ADN123b	0x46	type2	[4,57,15]	[1,4,57]
+Stage29	0x027EFC	28	120	ADN124a	0x47	type2	[4,57,15]	[1,4,57]
+Stage29	0x02801C	28	300	ADN121e	0x4E	type2	[4,57,15]	[1,4,57]
+Stage29	0x02813C	28	300	ADN122e	0x57	type2	[4,57,15]	[1,4,57]
+Stage29	0x02825C	28	300	ADN123e	0x5E	type2	[4,57,15]	[1,4,57]
+Stage29	0x02837C	28	300	ADN124e	0x63	type2	[4,57,15]	[1,4,57]
+Stage29	0x02849C	28	120	ADN125a	0x51	type2	[4,57,15]	[1,4,57]
+Stage29	0x0285BC	28	120	ADN126a	0x59	type2	[4,57,15]	[1,4,57]
+Stage29	0x0286DC	28	120	ADN127a	0x60	type2	[4,57,15]	[1,4,64]
+Stage29	0x0288A4	28	200	ADN121c	0x3B	type2	[64,57,15]	[1,4,57]
+Stage29	0x0289C4	28	300	ADN121e	0x4E	type2	[4,57,15]	[1,4,57]
+Stage29	0x028AE4	28	120	ADN121a	0x31	type2	[4,57,15]	[1,4,57]
+Stage29	0x028C04	28	200	ADN121b	0x35	type2	[4,57,15]	[1,4,57]
+Stage29	0x028D24	28	120	ADN122a	0x36	type2	[4,57,15]	[1,4,57]
+Stage29	0x028E44	28	200	ADN122b	0x3C	type2	[4,57,15]	[1,4,57]
+Stage29	0x028F64	28	120	ADN123a	0x3D	type2	[4,57,15]	[1,4,57]
+Stage29	0x029084	28	200	ADN123b	0x46	type2	[4,57,15]	[1,4,57]
+Stage29	0x0291A4	28	120	ADN124a	0x47	type2	[4,57,15]	[1,4,57]
+Stage29	0x0292C4	28	120	ADN125a	0x51	type2	[4,57,15]	[1,4,57]
+Stage29	0x0293E4	28	200	ADN122c	0x45	type2	[4,57,15]	[1,4,57]
+Stage29	0x029504	28	300	ADN122e	0x57	type2	[4,57,15]	[1,4,57]
+Stage29	0x029624	28	120	ADN126a	0x59	type2	[4,57,15]	[1,4,57]
+Stage29	0x029744	28	200	ADN124b	0x50	type2	[4,57,15]	[1,4,64]
+Stage29	0x0299AC	28	200	ADN121c	0x3B	type2	[64,57,15]	[1,4,57]
+Stage29	0x029ACC	28	200	ADN122c	0x45	type2	[4,57,15]	[1,4,57]
+Stage29	0x029BEC	28	120	ADN121a	0x31	type2	[4,57,15]	[1,4,57]
+Stage29	0x029D0C	28	300	ADN121e	0x4E	type2	[4,57,15]	[1,4,57]
+Stage29	0x029E2C	28	120	ADN122a	0x36	type2	[4,57,15]	[1,4,57]
+Stage29	0x029F4C	28	120	ADN123a	0x3D	type2	[4,57,15]	[1,4,57]
+Stage29	0x02A06C	28	120	ADN124a	0x47	type2	[4,57,15]	[1,4,57]
+Stage29	0x02A18C	28	300	ADN122e	0x57	type2	[4,57,15]	[1,4,57]
+Stage29	0x02A2AC	28	200	ADN121b	0x35	type2	[4,57,15]	[1,4,57]
+Stage29	0x02A3CC	28	200	ADN122b	0x3C	type2	[4,57,15]	[1,4,57]
+Stage29	0x02A4EC	28	120	ADN125a	0x51	type2	[4,57,15]	[1,4,57]
+Stage29	0x02A60C	28	200	ADN123b	0x46	type2	[4,57,15]	[1,4,57]
+Stage29	0x02A72C	28	300	ADN123e	0x5E	type2	[4,57,15]	[1,4,57]
+Stage29	0x02A84C	28	300	ADN124e	0x63	type2	[4,57,15]	[1,64,64]
+Stage29	0x02AA8C	28	200	ADN121c	0x3B	type2	[64,57,15]	[1,4,57]
+Stage29	0x02ABAC	28	200	ADN121b	0x35	type2	[4,57,15]	[1,4,57]
+Stage29	0x02ACCC	28	120	ADN121a	0x31	type2	[4,57,15]	[1,4,57]
+Stage29	0x02ADEC	28	120	ADN122a	0x36	type2	[4,57,15]	[1,4,57]
+Stage29	0x02AF0C	28	300	ADN121e	0x4E	type2	[4,57,15]	[1,4,57]
+Stage29	0x02B02C	28	200	ADN122b	0x3C	type2	[4,57,15]	[1,4,57]
+Stage29	0x02B14C	28	120	ADN123a	0x3D	type2	[4,57,15]	[1,4,57]
+Stage29	0x02B26C	28	120	ADN124a	0x47	type2	[4,57,15]	[1,4,57]
+Stage29	0x02B38C	28	300	ADN122e	0x57	type2	[4,57,15]	[1,4,57]
+Stage29	0x02B4AC	28	200	ADN123b	0x46	type2	[4,57,15]	[1,4,57]
+Stage29	0x02B5CC	28	300	ADN121d	0x44	type2	[4,57,15]	[1,4,57]
+Stage29	0x02B6EC	28	200	ADN122c	0x45	type2	[4,57,15]	[1,4,57]
+Stage29	0x02B80C	28	300	ADN123e	0x5E	type2	[4,57,15]	[1,4,57]
+Stage29	0x02B92C	28	300	ADN124e	0x63	type2	[4,57,15]	[1,4,64]
+Stage29	0x02BB94	28	300	ADN121d	0x44	type2	[64,57,15]	[1,4,57]
+Stage29	0x02BCB4	28	200	ADN121c	0x3B	type2	[4,57,15]	[1,4,57]
+Stage29	0x02BDD4	28	200	ADN121b	0x35	type2	[4,57,15]	[1,4,57]
+Stage29	0x02BEF4	28	200	ADN122c	0x45	type2	[4,57,15]	[1,4,57]
+Stage29	0x02C014	28	120	ADN121a	0x31	type2	[4,57,15]	[1,4,57]
+Stage29	0x02C134	28	200	ADN122b	0x3C	type2	[4,57,15]	[1,4,57]
+Stage29	0x02C254	28	300	ADN121e	0x4E	type2	[4,57,15]	[1,4,57]
+Stage29	0x02C374	28	300	ADN122e	0x57	type2	[4,57,15]	[1,4,57]
+Stage29	0x02C494	28	200	ADN123b	0x46	type2	[4,57,15]	[1,4,57]
+Stage29	0x02C5B4	28	120	ADN122a	0x36	type2	[4,57,15]	[1,4,57]
+Stage29	0x02C6D4	28	120	ADN123a	0x3D	type2	[4,57,15]	[1,4,57]
+Stage29	0x02C7F4	28	120	ADN124a	0x47	type2	[4,57,15]	[1,4,57]
+Stage29	0x02C914	28	300	ADN123e	0x5E	type2	[4,57,15]	[1,4,57]
+Stage29	0x02CA34	28	300	ADN124e	0x63	type2	[4,57,15]	[1,4,64]
+Stage29	0x02CC9C	28	200	ADN121b	0x35	type2	[64,57,15]	[1,4,57]
+Stage29	0x02CDBC	28	300	ADN121e	0x4E	type2	[4,57,15]	[1,4,57]
+Stage29	0x02CEDC	28	120	ADN121a	0x31	type2	[4,57,15]	[1,4,57]
+Stage29	0x02CFFC	28	300	ADN122e	0x57	type2	[4,57,15]	[1,4,57]
+Stage29	0x02D11C	28	120	ADN122a	0x36	type2	[4,57,15]	[1,4,57]
+Stage29	0x02D23C	28	300	ADN123e	0x5E	type2	[4,57,15]	[1,4,57]
+Stage29	0x02D35C	28	120	ADN123a	0x3D	type2	[4,57,15]	[1,4,57]
+Stage29	0x02D47C	28	120	ADN124a	0x47	type2	[4,57,15]	[1,4,57]
+Stage29	0x02D59C	28	120	ADN125a	0x51	type2	[4,57,15]	[1,4,57]
+Stage29	0x02D6BC	28	120	ADN126a	0x59	type2	[4,57,15]	[1,4,57]
+Stage29	0x02D7DC	28	200	ADN121c	0x3B	type2	[4,57,15]	[1,4,57]
+Stage29	0x02D8FC	28	200	ADN122b	0x3C	type2	[4,57,15]	[1,4,57]
+Stage29	0x02DA1C	28	200	ADN122c	0x45	type2	[4,57,15]	[1,4,57]
+Stage29	0x02DB3C	28	300	ADN124e	0x63	type2	[4,57,15]	[1,64,64]
+Stage29	0x02DD7C	28	300	ADN121e	0x4E	type2	[64,57,15]	[1,4,57]
+Stage29	0x02DE9C	28	200	ADN121b	0x35	type2	[4,57,15]	[1,4,57]
+Stage29	0x02DFBC	28	300	ADN122e	0x57	type2	[4,57,15]	[1,4,57]
+Stage29	0x02E0DC	28	120	ADN121a	0x31	type2	[4,57,15]	[1,4,57]
+Stage29	0x02E1FC	28	200	ADN121c	0x3B	type2	[4,57,15]	[1,4,57]
+Stage29	0x02E31C	28	300	ADN121d	0x44	type2	[4,57,15]	[1,4,57]
+Stage29	0x02E43C	28	120	ADN122a	0x36	type2	[4,57,15]	[1,4,57]
+Stage29	0x02E55C	28	120	ADN123a	0x3D	type2	[4,57,15]	[1,4,57]
+Stage29	0x02E67C	28	120	ADN124a	0x47	type2	[4,57,15]	[1,4,57]
+Stage29	0x02E79C	28	200	ADN122b	0x3C	type2	[4,57,15]	[1,4,57]
+Stage29	0x02E8BC	28	300	ADN123e	0x5E	type2	[4,57,15]	[1,4,57]
+Stage29	0x02E9DC	28	120	ADN125a	0x51	type2	[4,57,15]	[1,4,57]
+Stage29	0x02EAFC	28	200	ADN122c	0x45	type2	[4,57,15]	[1,4,57]
+Stage29	0x02EC1C	28	120	ADN126a	0x59	type2	[4,57,15]	[1,4,64]
+Stage29	0x02F1EC	28	200	ADN146a	0x66	type2	[16,16,16]	[145,47,47]
+Stage29	0x02F960	28	200	ADN146b	0x67	type2	[16,16,16]	[29,145,47]
+Stage29	0x02F9A0	29	50	ADN146b	0x67	type2	[16,16,28]	[145,47,47]
+Stage29	0x02FF24	28	200	ADN147a	0x68	type2	[16,16,16]	[145,47,47]
+Stage29	0x030698	28	200	ADN147b	0x69	type2	[16,16,16]	[29,145,47]
+Stage29	0x0306D8	29	50	ADN147b	0x69	type2	[16,16,28]	[145,47,47]
+Stage29	0x030C5C	28	200	ADN148a	0x6A	type2	[16,16,16]	[145,47,47]
+Stage29	0x0313D0	28	200	ADN148b	0x6B	type2	[16,16,16]	[29,145,47]
+Stage29	0x031410	29	50	ADN148b	0x6B	type2	[16,16,28]	[145,47,47]
+Stage29	0x031994	28	200	ADN149a	0x6C	type2	[16,16,16]	[145,47,47]
+Stage29	0x032108	28	200	ADN149b	0x6D	type2	[16,16,16]	[29,145,47]
+Stage29	0x032148	29	50	ADN149b	0x6D	type2	[16,16,28]	[145,47,47]
+Stage29	0x0326CC	28	200	ADN150a	0x3F	type2	[16,16,16]	[145,47,47]
+Stage29	0x032E40	28	200	ADN150b	0x4A	type2	[16,16,16]	[29,145,47]
+Stage29	0x032E80	29	50	ADN150b	0x4A	type2	[16,16,28]	[145,47,47]
+
+# builtin 26: 97 sites, 7 distinct values
+#   values: 0 x69, 80 x10, 100 x6, 60 x5, 30 x3, 50 x3, 40 x1
+#   units:  66 distinct, top: ADN128 x8, TCN001 x7, ADN207 x4, TCN208 x4, TCN002 x3, ADT102 x3, ADT104 x3, ADT107 x3, ADT101 x2, ADT103 x2
+#   craft cross-tab (0 unresolved):
+#     UN_e201_ADAN_ISCMissile                      17  0x17
+#     UN_n001_TTRL_Box                             16  0x16
+#     UN_f202_TCAF_Cargo                            9  0x9
+#     UN_e106_ADAN_Destroyer                        8  0x4, 80x2, 30x1, 60x1
+#     UN_f106_TCAF_Destroyer                        8  0x4, 60x2, 80x1, 50x1
+#     UN_f001_TCAF_DeltaSaber_T_Player_Ttrl1        6  100x5, 40x1
+#     UN_f105_TCAF_Cruiser                          5  0x3, 80x1, 50x1
+#     UN_e015_ADAN_Puppy_2                          5  0x5
+#     UN_e015_ADAN_Puppy                            5  0x5
+#     UN_e108_ADAN_ASFrigate                        4  80x2, 60x1, 30x1
+#     UN_f001_TCAF_DeltaSaber_T                     3  80x1, 50x1, 30x1
+#     UN_mn500_ADAN_FloatingMine                    3  0x3
+#     UN_e105_ADAN_Cruiser                          2  80x1, 60x1
+#     UN_e011_ADAN_Attacker_B                       2  0x2
+#     UN_f101_TCAF_Acropolis                        1  80x1
+#     UN_f002_TCAF_DeltaSaber_W                     1  80x1
+#     UN_n001_TTRL_Box_move                         1  0x1
+#     UN_f001_TCAF_DeltaSaber_T_Player_Ttrl2        1  100x1
+#     UN_f001_TCAF_DeltaSaber_T_Ttrl                1  100x1
+
+# builtin 28: 410 sites, 13 distinct values
+#   values: 200 x116, 120 x76, 300 x74, 500 x48, 150 x37, 100 x29, 1000 x8, 2000 x5, 0.1 x5, 0 x5, 600 x4, 10 x2, 50 x1
+#   units:  190 distinct, top: TCN001 x13, ADN101b x7, ADN101a x7, ADN102a x7, ADN102b x7, ADN103a x7, ADN104a x7, ADN101e x7, ADN102e x7, ADN121b x7
+#   craft cross-tab (0 unresolved):
+#     UN_e106_ADAN_Destroyer                      105  120x76, 150x15, 100x12, 200x2
+#     UN_e104_ADAN_Carrier                         55  300x54, 150x1
+#     UN_e105_ADAN_CruiserEX                       52  200x52
+#     UN_e102_ADAN_BattleshipEX                    26  200x26
+#     UN_e001_ADAN_Elan                            24  200x18, 300x6
+#     UN_e010_ADAN_Attacker_S                      21  200x18, 100x3
+#     UN_e004_ADAN_ElanPlus_N                      19  500x19
+#     UN_e009_ADAN_Phantom                         16  500x16
+#     UN_f001_TCAF_DeltaSaber_T_Player_Ttrl1       10  0x5, 100x5
+#     UN_e007_ADAN_Turret                           9  100x9
+#     UN_e002_ADAN_Elan_N                           9  500x9
+#     UN_e105_ADAN_Cruiser                          8  150x8
+#     UN_e101_ADAN_SDBattleshipEX                   8  300x8
+#     UN_f001_TCAF_DeltaSaber_T                     7  150x4, 10x2, 50x1
+#     UN_e011_ADAN_Attacker_B                       6  300x6
+#     UN_f002_TCAF_DeltaSaber_W                     5  150x5
+#     UN_e003_ADAN_ElanPlus_Margras                 4  2000x4
+#     UN_e108_ADAN_ASFrigateEX                      4  600x4
+#     UN_f106_TCAF_Destroyer_Inv                    3  0.1x2, 150x1
+#     UN_e001_ADAN_Elan_GR_Violeta                  3  1000x3
+#     UN_e001_ADAN_Elan_GR                          3  1000x3
+#     UN_e101_ADAN_SDBattleship                     3  150x3
+#     UN_f101_TCAF_Acropolis                        2  150x1, 0.1x1
+#     UN_e013_ADAN_ElanPlus_Taskent                 2  1000x2
+#     UN_f002_TCAF_DeltaSaber_W_Player              2  150x2
+#     UN_e011_ADAN_Attacker_B_HF                    2  500x2
+#     UN_e102_ADAN_Battleship                       2  150x2
+#     UN_f106_TCAF_Destroyer                        1  150x1
+#     UN_f001_TCAF_DeltaSaber_T_Player              1  150x1
+#     UN_f105_TCAF_Cruiser                          1  0.1x1
+#     UN_f102_TCAF_LightCarrier_Inv                 1  0.1x1
+#     UN_e005_ADAN_ElanTypeQ_Margras                1  2000x1
+#     UN_e108_ADAN_ASFrigate                        1  150x1
+#     UN_e011_ADAN_Attacker_B_HF_Wayne              1  500x1
+#     UN_e006_ADAN_Vindicator_Margras               1  500x1
+
+# builtin 29: 164 sites, 6 distinct values
+#   values: 0 x64, 100 x53, 50 x38, 40 x6, 75 x2, 20 x1
+#   units:  70 distinct, top: TCN001 x71, TCN002 x10, TCT207 x4, TCN008 x3, ADT108 x3, ADT109 x3, ADT103 x3, TCN003 x2, ADS151a x2, ADS151b x2
+#   craft cross-tab (0 unresolved):
+#     UN_f002_TCAF_DeltaSaber_W_Player             41  100x23, 0x18
+#     UN_f001_TCAF_DeltaSaber_T                    40  0x25, 100x15
+#     UN_f002_TCAF_DeltaSaber_W                    38  100x21, 0x16, 50x1
+#     UN_f001_TCAF_DeltaSaber_T_Player             30  0x15, 100x15
+#     UN_e010_ADAN_Attacker_S                      18  50x18
+#     UN_f202_TCAF_Cargo                           14  50x8, 0x4, 100x2
+#     UN_e201_ADAN_ISCMissile                       9  100x8, 20x1
+#     UN_n001_TTRL_Box                              9  0x9
+#     UN_e104_ADAN_Carrier                          6  0x3, 100x3
+#     UN_f003_TCAF_ArrowHead                        5  50x5
+#     UN_e001_ADAN_Elan_GR_Violeta                  3  40x3
+#     UN_e001_ADAN_Elan_GR                          3  40x3
+#     UN_e006_ADAN_Vindicator_MargrasF              3  0x3
+#     UN_f004_TCAF_DeltaSaber_A_Player              2  0x1, 100x1
+#     UN_f001_TCAF_DeltaSaber_T_EX5_el              2  0x1, 100x1
+#     UN_f106_TCAF_Destroyer                        2  50x2
+#     UN_f105_TCAF_Cruiser                          2  50x2
+#     UN_be005_ADAN_SpaceFortress                   1  0x1
+#     UN_f101_TCAF_Acropolis                        1  75x1
+#     UN_f104_TCAF_Battleship                       1  75x1
+#     UN_f102_TCAF_LightCarrier                     1  50x1
+#     UN_e004_ADAN_ElanPlus_NF                      1  50x1
+
+# builtin 101: 133 sites, 1 distinct values
+#   values: - x133
+#   units:  1 distinct, top: ? x133
+#   craft cross-tab (133 unresolved):

docs/re/disc-atlas.html

@@ -0,0 +1,921 @@
+<title>Sylpheed Disc Atlas</title>
+
+<style>
+/* ───────────────────────────────────────────────────────────────────────────
+   Palette. Three of these hex values are literal constants in the codebase:
+   --ground is ComposeOptions::default().backdrop = [14,14,20], the colour the
+   UI compositor paints behind every reassembled screen; --warn and --refuted
+   are the viewer's own egui warning/error colours, rgb(224,168,86) and
+   rgb(224,86,122). --confirm is the cyan glow measured off the intro video.
+   Neutrals are biased blue to sit with the ground rather than against it.
+   ─────────────────────────────────────────────────────────────────────────── */
+:root {
+  --ground:      #0e0e14;
+  --confirm:     #3fb6c6;
+  --warn:        #b8792c;
+  --refuted:     #c23f61;
+  --accent:      #c23f61;
+
+  --bg:          #eceef3;
+  --surface:     #f6f7fa;
+  --surface-2:   #e2e5ee;
+  --text:        #16171f;
+  --text-muted:  #5c6076;
+  --text-faint:  #878ca3;
+  --rule:        #c9cddb;
+  --rule-soft:   #dbdfe9;
+}
+
+@media (prefers-color-scheme: dark) {
+  :root:not([data-theme="light"]) {
+    --confirm:     #4fd0e0;
+    --warn:        #e0a856;
+    --refuted:     #e0567a;
+    --accent:      #e0567a;
+
+    --bg:          #0e0e14;
+    --surface:     #16171f;
+    --surface-2:   #1e2029;
+    --text:        #e8e9ef;
+    --text-muted:  #9296ab;
+    --text-faint:  #6d7186;
+    --rule:        #2b2e3a;
+    --rule-soft:   #22242e;
+  }
+}
+
+:root[data-theme="dark"] {
+  --confirm:     #4fd0e0;
+  --warn:        #e0a856;
+  --refuted:     #e0567a;
+  --accent:      #e0567a;
+
+  --bg:          #0e0e14;
+  --surface:     #16171f;
+  --surface-2:   #1e2029;
+  --text:        #e8e9ef;
+  --text-muted:  #9296ab;
+  --text-faint:  #6d7186;
+  --rule:        #2b2e3a;
+  --rule-soft:   #22242e;
+}
+
+/* Type roles: mono for every label and datum (this subject is hex and paths),
+   serif for prose so the two never blur into each other. */
+:root {
+  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Mono", Menlo,
+          Consolas, "Liberation Mono", monospace;
+  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua",
+           Georgia, serif;
+}
+
+* { box-sizing: border-box; }
+
+body {
+  margin: 0;
+  background: var(--bg);
+  color: var(--text);
+  font-family: var(--serif);
+  font-size: 17px;
+  line-height: 1.6;
+  -webkit-font-smoothing: antialiased;
+}
+
+.wrap {
+  max-width: 1180px;
+  margin: 0 auto;
+  padding: 0 24px 120px;
+}
+
+/* Prose stays near 66ch; panels break out to the full width. */
+.col {
+  max-width: 66ch;
+  display: flex;
+  flex-direction: column;
+  gap: 1.1em;
+}
+
+/* ── Masthead ─────────────────────────────────────────────────────────────── */
+
+header.mast {
+  border-bottom: 1px solid var(--rule);
+  padding: 72px 0 34px;
+  margin-bottom: 44px;
+}
+
+.eyebrow {
+  font-family: var(--mono);
+  font-size: 11px;
+  letter-spacing: 0.18em;
+  text-transform: uppercase;
+  color: var(--text-faint);
+  margin: 0 0 20px;
+}
+
+h1 {
+  font-family: var(--mono);
+  font-size: clamp(30px, 5.4vw, 52px);
+  font-weight: 700;
+  letter-spacing: -0.02em;
+  line-height: 1.04;
+  margin: 0 0 22px;
+  text-wrap: balance;
+}
+h1 .dim { color: var(--text-faint); font-weight: 400; }
+
+.standfirst {
+  font-size: 20px;
+  line-height: 1.5;
+  color: var(--text-muted);
+  max-width: 60ch;
+  margin: 0;
+  text-wrap: pretty;
+}
+
+/* ── Stat strip ───────────────────────────────────────────────────────────── */
+
+.stats {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
+  gap: 1px;
+  background: var(--rule-soft);
+  border: 1px solid var(--rule-soft);
+  margin: 40px 0 0;
+}
+.stat { background: var(--bg); padding: 16px 18px; }
+.stat .n {
+  font-family: var(--mono);
+  font-size: 26px;
+  font-weight: 700;
+  font-variant-numeric: tabular-nums;
+  letter-spacing: -0.02em;
+  display: block;
+  line-height: 1.1;
+}
+.stat .l {
+  font-family: var(--mono);
+  font-size: 10.5px;
+  letter-spacing: 0.11em;
+  text-transform: uppercase;
+  color: var(--text-faint);
+  margin-top: 7px;
+  display: block;
+  line-height: 1.4;
+}
+
+/* ── Sections ─────────────────────────────────────────────────────────────── */
+
+section { margin: 78px 0 0; }
+
+h2 {
+  font-family: var(--mono);
+  font-size: 13px;
+  font-weight: 700;
+  letter-spacing: 0.15em;
+  text-transform: uppercase;
+  color: var(--text);
+  margin: 0 0 6px;
+  padding-bottom: 12px;
+  border-bottom: 1px solid var(--rule);
+  display: flex;
+  align-items: baseline;
+  gap: 14px;
+}
+h2 .idx { color: var(--accent); font-weight: 400; }
+h2 .rest { color: var(--text-faint); font-weight: 400; letter-spacing: 0.1em; }
+
+h3 {
+  font-family: var(--mono);
+  font-size: 14px;
+  font-weight: 700;
+  letter-spacing: 0.03em;
+  margin: 42px 0 4px;
+}
+
+p { margin: 0; }
+.col > p + p { margin-top: 0; }
+
+a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }
+a:focus-visible, button:focus-visible { outline: 2px solid var(--confirm); outline-offset: 3px; }
+
+code, .m {
+  font-family: var(--mono);
+  font-size: 0.86em;
+  background: var(--surface-2);
+  padding: 1px 5px;
+  border-radius: 2px;
+  word-break: break-word;
+}
+
+strong { font-weight: 700; }
+em { font-style: italic; color: var(--text); }
+
+/* ── Confidence chips ─────────────────────────────────────────────────────── */
+
+.chip {
+  font-family: var(--mono);
+  font-size: 10px;
+  font-weight: 700;
+  letter-spacing: 0.09em;
+  text-transform: uppercase;
+  padding: 2px 7px;
+  border: 1px solid currentColor;
+  border-radius: 2px;
+  white-space: nowrap;
+  display: inline-block;
+  line-height: 1.5;
+}
+.c-ok    { color: var(--confirm); }
+.c-part  { color: var(--warn); }
+.c-no    { color: var(--refuted); }
+.c-none  { color: var(--text-faint); }
+
+/* ── Panels (full-width breakouts) ────────────────────────────────────────── */
+
+.panel {
+  margin: 30px 0 0;
+  border: 1px solid var(--rule);
+  background: var(--surface);
+}
+.panel-head {
+  font-family: var(--mono);
+  font-size: 10.5px;
+  letter-spacing: 0.13em;
+  text-transform: uppercase;
+  color: var(--text-faint);
+  padding: 11px 16px;
+  border-bottom: 1px solid var(--rule-soft);
+}
+.panel-body { padding: 4px 0; overflow-x: auto; }
+
+/* The schematic is a screen, not a page element: it keeps the game's own
+   ground in both themes, the way an instrument panel does. */
+.screen {
+  background: var(--ground);
+  border: 1px solid var(--rule);
+  margin: 30px 0 0;
+  overflow-x: auto;
+}
+.screen svg { display: block; min-width: 760px; width: 100%; height: auto; }
+
+figcaption {
+  font-family: var(--mono);
+  font-size: 11.5px;
+  line-height: 1.65;
+  color: var(--text-faint);
+  margin-top: 12px;
+  max-width: 76ch;
+}
+figure { margin: 0; }
+
+/* ── Tables ───────────────────────────────────────────────────────────────── */
+
+.tbl-scroll { overflow-x: auto; margin: 26px 0 0; }
+table {
+  border-collapse: collapse;
+  width: 100%;
+  font-family: var(--mono);
+  font-size: 12.5px;
+  min-width: 620px;
+}
+th {
+  text-align: left;
+  font-size: 10px;
+  letter-spacing: 0.12em;
+  text-transform: uppercase;
+  color: var(--text-faint);
+  font-weight: 700;
+  padding: 0 14px 9px 0;
+  border-bottom: 1px solid var(--rule);
+  white-space: nowrap;
+}
+td {
+  padding: 8px 14px 8px 0;
+  border-bottom: 1px solid var(--rule-soft);
+  vertical-align: top;
+}
+td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; padding-right: 22px; }
+tbody tr:hover { background: var(--surface); }
+td .note { color: var(--text-muted); font-family: var(--serif); font-size: 13.5px; }
+
+/* ── Mermaid ──────────────────────────────────────────────────────────────── */
+
+.dia {
+  margin: 24px 0 0;
+  padding: 18px 16px;
+  background: var(--surface);
+  border: 1px solid var(--rule-soft);
+  overflow-x: auto;
+}
+.dia pre.mermaid { margin: 0; text-align: left; }
+
+/* ── Callout ──────────────────────────────────────────────────────────────── */
+
+.note-box {
+  border-left: 2px solid var(--accent);
+  padding: 2px 0 2px 18px;
+  margin: 26px 0 0;
+  color: var(--text-muted);
+  max-width: 64ch;
+}
+.note-box .lbl {
+  font-family: var(--mono);
+  font-size: 10px;
+  letter-spacing: 0.13em;
+  text-transform: uppercase;
+  color: var(--accent);
+  display: block;
+  margin-bottom: 6px;
+}
+
+ul.plain { margin: 0; padding-left: 1.15em; display: flex; flex-direction: column; gap: 0.55em; }
+ul.plain li::marker { color: var(--text-faint); }
+
+/* ── Chain (numbered hops — the numbering is the hop order, which is real) ─── */
+
+.hops { display: flex; flex-direction: column; gap: 0; margin: 24px 0 0; }
+.hop {
+  display: grid;
+  grid-template-columns: 34px 1fr;
+  gap: 14px;
+  padding: 13px 0;
+  border-bottom: 1px solid var(--rule-soft);
+  align-items: baseline;
+}
+.hop:first-child { border-top: 1px solid var(--rule); }
+.hop .n {
+  font-family: var(--mono);
+  font-size: 11px;
+  font-weight: 700;
+  color: var(--accent);
+  font-variant-numeric: tabular-nums;
+}
+.hop .b { font-family: var(--mono); font-size: 12.5px; line-height: 1.7; }
+.hop .b .d { color: var(--text-muted); font-family: var(--serif); font-size: 14px; display: block; margin-top: 3px; }
+
+footer {
+  margin-top: 96px;
+  padding-top: 26px;
+  border-top: 1px solid var(--rule);
+  font-family: var(--mono);
+  font-size: 11.5px;
+  color: var(--text-faint);
+  line-height: 1.8;
+}
+
+@media (prefers-reduced-motion: reduce) {
+  * { animation: none !important; transition: none !important; }
+}
+</style>
+
+<div class="wrap">
+
+<header class="mast">
+  <p class="eyebrow">Project Sylpheed · Arc of Deception — reverse-engineering reference</p>
+  <h1>Sylpheed Disc Atlas</h1>
+  <p class="standfirst">
+    What is on the disc, and how every piece of it points at every other piece.
+    Four layers deep: the media, the archives, the container formats, and the
+    domain chains a port has to walk.
+  </p>
+
+  <div class="stats">
+    <div class="stat"><span class="n">41</span><span class="l">IPFB archives</span></div>
+    <div class="stat"><span class="n">26 443</span><span class="l">archive entries</span></div>
+    <div class="stat"><span class="n">166</span><span class="l">.xpr packages</span></div>
+    <div class="stat"><span class="n">97</span><span class="l">.wmv cutscenes</span></div>
+    <div class="stat"><span class="n">9 519</span><span class="l">sound banks</span></div>
+    <div class="stat"><span class="n">3</span><span class="l">hash functions</span></div>
+  </div>
+</header>
+
+<div class="col">
+  <p>
+    Nothing on this disc is found by path at runtime. Every lookup is a
+    <em>hash</em>, and the whole disc is joined together by three of them with
+    different rules. Read that first, or the rest of the map reads as a pile of
+    unrelated tables.
+  </p>
+  <p>
+    Counts here were measured on the retail extract for this page, not copied
+    forward. Where a claim is contested or partial, the chip says so — and the
+    things that <em>do not</em> resolve get their own section, because a port
+    has to survive them.
+  </p>
+</div>
+
+<!-- ══════════════════════════════════════════════════════════════════════ -->
+<section>
+  <h2><span class="idx">01</span> <span>The join algebra</span> <span class="rest">three hashes, three rules</span></h2>
+
+  <div class="col">
+    <p>
+      These are not interchangeable, and mixing them up is the single most
+      productive mistake this project has made. They differ in what they hash,
+      and crucially in <strong>case sensitivity</strong>.
+    </p>
+  </div>
+
+  <div class="tbl-scroll">
+  <table>
+    <thead>
+      <tr><th>Hash</th><th>Keys</th><th>Case</th><th>Verified</th><th></th></tr>
+    </thead>
+    <tbody>
+      <tr>
+        <td><strong>name_hash</strong></td>
+        <td>IPFB archive TOC entries — a file path inside a <span class="m">.pak</span></td>
+        <td>insensitive</td>
+        <td class="num">recovers paths</td>
+        <td><span class="chip c-ok">confirmed</span></td>
+      </tr>
+      <tr>
+        <td><strong>tag_hash</strong></td>
+        <td>IDXD record names and field keys</td>
+        <td><em>sensitive</em></td>
+        <td class="num">1 271 462 / 1 271 462</td>
+        <td><span class="chip c-ok">confirmed</span></td>
+      </tr>
+      <tr>
+        <td><strong>ixud_hash</strong></td>
+        <td>IXUD localised-text record and field keys</td>
+        <td><em>sensitive</em></td>
+        <td class="num">628 165 / 628 165</td>
+        <td><span class="chip c-ok">confirmed</span></td>
+      </tr>
+    </tbody>
+  </table>
+  </div>
+
+  <div class="note-box">
+    <span class="lbl">The trap that cost the most</span>
+    A 24-bit modulus cannot uniquely name an identifier of eight characters or
+    more. Exhaustive preimage search recovers <span class="m">"Stage01"</span>
+    from its own hash, but at seven characters one real target already has
+    <strong>1 176</strong> preimages. Forty-two field keys on this disc are
+    hash-only with no stored name, and they are <em>provably</em> unrecoverable
+    — not merely unrecovered. Everything else carries its name inline: an IDXD
+    field's middle word points at its own name string, which is why the
+    containers are self-describing and the hash almost never has to be inverted.
+  </div>
+</section>
+
+<!-- ══════════════════════════════════════════════════════════════════════ -->
+<section>
+  <h2><span class="idx">02</span> <span>The four layers</span> <span class="rest">disc → archive → container → domain</span></h2>
+
+  <div class="col">
+    <p>
+      Reading up from the bottom: a domain chain names an asset by string, that
+      string hashes into an archive TOC, the TOC yields a compressed blob, and
+      the blob's first four bytes say which container format it is. Every arrow
+      in this diagram is a hash lookup or a magic-byte test — there are no
+      directory scans.
+    </p>
+  </div>
+
+  <figure>
+    <div class="screen">
+      <svg viewBox="0 0 1000 640" role="img" aria-label="Four-layer schematic of the Project Sylpheed disc: media, archives, container formats and domain chains, joined by three hash functions.">
+        <defs>
+          <marker id="ar" viewBox="0 0 10 10" refX="9" refY="5" markerWidth="7" markerHeight="7" orient="auto-start-reverse">
+            <path d="M 0 0 L 10 5 L 0 10 z" fill="#4f5468"/>
+          </marker>
+          <style>
+            .bl { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 10px; letter-spacing: .16em; fill: #6d7186; text-transform: uppercase; }
+            .bx { fill: #16171f; stroke: #2b2e3a; stroke-width: 1; }
+            .bxa { fill: #16171f; stroke: #4fd0e0; stroke-width: 1; }
+            .tt { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 12px; fill: #e8e9ef; }
+            .ts { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 10px; fill: #6d7186; }
+            .tn { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 11px; fill: #4fd0e0; }
+            .jn { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 10.5px; fill: #e0a856; letter-spacing: .06em; }
+            .ln { stroke: #4f5468; stroke-width: 1; }
+            .rl { stroke: #22242e; stroke-width: 1; }
+          </style>
+        </defs>
+
+        <!-- band rules -->
+        <line class="rl" x1="0" y1="118" x2="1000" y2="118"/>
+        <line class="rl" x1="0" y1="268" x2="1000" y2="268"/>
+        <line class="rl" x1="0" y1="418" x2="1000" y2="418"/>
+
+        <!-- ── BAND 1 · disc media ── -->
+        <text class="bl" x="24" y="40">Disc</text>
+        <g>
+          <rect class="bx" x="130" y="30" width="160" height="58" rx="2"/>
+          <text class="tt" x="145" y="54">default.xex</text>
+          <text class="ts" x="145" y="70">executable + PE</text>
+
+          <rect class="bx" x="302" y="30" width="160" height="58" rx="2"/>
+          <text class="tt" x="317" y="54">dat/</text>
+          <text class="ts" x="317" y="70">37 archives</text>
+
+          <rect class="bx" x="474" y="30" width="160" height="58" rx="2"/>
+          <text class="tt" x="489" y="54">hidden/</text>
+          <text class="ts" x="489" y="70">DefTables · MiscBin</text>
+
+          <rect class="bx" x="646" y="30" width="160" height="58" rx="2"/>
+          <text class="tt" x="661" y="54">dat/movie/</text>
+          <text class="ts" x="661" y="70">97 wmv · 6 paks</text>
+
+          <rect class="bx" x="818" y="30" width="160" height="58" rx="2"/>
+          <text class="tt" x="833" y="54">resource3d/</text>
+          <text class="ts" x="833" y="70">166 xpr · 1.4 GB</text>
+        </g>
+
+        <!-- join 1 -->
+        <line class="ln" x1="382" y1="88" x2="382" y2="176" marker-end="url(#ar)"/>
+        <line class="ln" x1="554" y1="88" x2="554" y2="176" marker-end="url(#ar)"/>
+        <line class="ln" x1="726" y1="88" x2="726" y2="176" marker-end="url(#ar)"/>
+        <line class="ln" x1="898" y1="88" x2="898" y2="220" marker-end="url(#ar)"/>
+        <text class="jn" x="130" y="112">name_hash keys the TOC — case-insensitive</text>
+
+        <!-- ── BAND 2 · archives ── -->
+        <text class="bl" x="24" y="190">Archive</text>
+        <g>
+          <rect class="bxa" x="130" y="176" width="560" height="72" rx="2"/>
+          <text class="tt" x="146" y="200">IPFB  ·  .pak index + .p00….pNN data segments</text>
+          <text class="ts" x="146" y="218">12-byte TOC entry { name_hash, offset, comp_size } · Z1/zlib payloads</text>
+          <text class="tn" x="146" y="236">41 archives · 26 443 entries</text>
+
+          <rect class="bx" x="706" y="176" width="272" height="72" rx="2"/>
+          <text class="tt" x="722" y="200">raw files (not archived)</text>
+          <text class="ts" x="722" y="218">.wmv video · .xpr resource packages</text>
+          <text class="tn" x="722" y="236">263 files</text>
+        </g>
+
+        <!-- join 2 -->
+        <line class="ln" x1="200" y1="248" x2="200" y2="292" marker-end="url(#ar)"/>
+        <line class="ln" x1="410" y1="248" x2="410" y2="292" marker-end="url(#ar)"/>
+        <line class="ln" x1="620" y1="248" x2="620" y2="292" marker-end="url(#ar)"/>
+        <line class="ln" x1="842" y1="248" x2="842" y2="292" marker-end="url(#ar)"/>
+        <text class="jn" x="130" y="264">payload magic decides the format — nothing declares a type</text>
+
+        <!-- ── BAND 3 · containers ── -->
+        <text class="bl" x="24" y="330">Container</text>
+        <g>
+          <rect class="bxa" x="130" y="292" width="77" height="62" rx="2"/>
+          <text class="tt" x="140" y="316">IDXD</text><text class="ts" x="140" y="332">tables</text><text class="tn" x="140" y="347">6325</text>
+
+          <rect class="bxa" x="215" y="292" width="77" height="62" rx="2"/>
+          <text class="tt" x="225" y="316">T8aD</text><text class="ts" x="225" y="332">2D tex</text><text class="tn" x="225" y="347">4525</text>
+
+          <rect class="bxa" x="300" y="292" width="77" height="62" rx="2"/>
+          <text class="tt" x="310" y="316">RATC</text><text class="ts" x="310" y="332">UI bundle</text><text class="tn" x="310" y="347">2985</text>
+
+          <rect class="bxa" x="385" y="292" width="77" height="62" rx="2"/>
+          <text class="tt" x="395" y="316">IXUD</text><text class="ts" x="395" y="332">text</text><text class="tn" x="395" y="347">1104</text>
+
+          <rect class="bxa" x="470" y="292" width="77" height="62" rx="2"/>
+          <text class="tt" x="480" y="316">LSTA</text><text class="ts" x="480" y="332">sprites</text><text class="tn" x="480" y="347">64</text>
+
+          <rect class="bxa" x="555" y="292" width="77" height="62" rx="2"/>
+          <text class="tt" x="565" y="316">SLB</text><text class="ts" x="565" y="332">XMA1</text><text class="tn" x="565" y="347">9519</text>
+
+          <rect class="bxa" x="640" y="292" width="77" height="62" rx="2"/>
+          <text class="tt" x="650" y="316">XBG7</text><text class="ts" x="650" y="332">mesh</text><text class="tn" x="650" y="347">6294</text>
+
+          <rect class="bxa" x="725" y="292" width="77" height="62" rx="2"/>
+          <text class="tt" x="735" y="316">XPR2</text><text class="ts" x="735" y="332">tex pkg</text><text class="tn" x="735" y="347">166</text>
+
+          <rect class="bxa" x="810" y="292" width="77" height="62" rx="2"/>
+          <text class="tt" x="820" y="316">TTF</text><text class="ts" x="820" y="332">fonts</text><text class="tn" x="820" y="347">54</text>
+
+          <rect class="bx" x="895" y="292" width="77" height="62" rx="2" stroke="#e0567a"/>
+          <text class="tt" x="905" y="316">ISB</text><text class="ts" x="905" y="332">PRT · BIN</text>
+          <text class="ts" x="905" y="347" fill="#e0567a">no parser</text>
+        </g>
+
+        <!-- join 3 -->
+        <line class="ln" x1="200" y1="354" x2="200" y2="442" marker-end="url(#ar)"/>
+        <line class="ln" x1="440" y1="354" x2="440" y2="442" marker-end="url(#ar)"/>
+        <line class="ln" x1="680" y1="354" x2="680" y2="442" marker-end="url(#ar)"/>
+        <line class="ln" x1="900" y1="354" x2="900" y2="442" marker-end="url(#ar)"/>
+        <text class="jn" x="130" y="410">tag_hash / ixud_hash key records + fields — values are asset NAMES, hashed back up</text>
+
+        <!-- ── BAND 4 · domains ── -->
+        <text class="bl" x="24" y="480">Domain</text>
+        <g>
+          <rect class="bx" x="130" y="442" width="112" height="66" rx="2"/>
+          <text class="tt" x="141" y="466">Stage</text><text class="ts" x="141" y="482">28 missions</text><text class="ts" x="141" y="496">10 sub-tables</text>
+
+          <rect class="bx" x="252" y="442" width="112" height="66" rx="2"/>
+          <text class="tt" x="263" y="466">Unit</text><text class="ts" x="263" y="482">159 fields</text><text class="ts" x="263" y="496">→ turret slot</text>
+
+          <rect class="bx" x="374" y="442" width="112" height="66" rx="2"/>
+          <text class="tt" x="385" y="466">Arsenal</text><text class="ts" x="385" y="482">59 items</text><text class="ts" x="385" y="496">4-hop chain</text>
+
+          <rect class="bx" x="496" y="442" width="112" height="66" rx="2"/>
+          <text class="tt" x="507" y="466">Audio</text><text class="ts" x="507" y="482">5798 cues</text><text class="ts" x="507" y="496">5 families</text>
+
+          <rect class="bx" x="618" y="442" width="112" height="66" rx="2"/>
+          <text class="tt" x="629" y="466">Cutscene</text><text class="ts" x="629" y="482">104 slots</text><text class="ts" x="629" y="496">4 bindings</text>
+
+          <rect class="bx" x="740" y="442" width="112" height="66" rx="2"/>
+          <text class="tt" x="751" y="466">UI screen</text><text class="ts" x="751" y="482">965 builds</text><text class="ts" x="751" y="496">decl + place</text>
+
+          <rect class="bx" x="862" y="442" width="112" height="66" rx="2"/>
+          <text class="tt" x="873" y="466">Save</text><text class="ts" x="873" y="482">545 bytes</text><text class="ts" x="873" y="496">GDHA + zlib</text>
+        </g>
+
+        <!-- the cross-domain edge: the save indexes the arsenal's string order -->
+        <path class="ln" d="M 918 508 L 918 560 L 430 560 L 430 508" fill="none" stroke-dasharray="3 3" marker-end="url(#ar)"/>
+        <text class="jn" x="560" y="578">the save's 54-byte blob is indexed by strings.tbl order — not weapon.tbl</text>
+
+        <text class="ts" x="130" y="614" fill="#4f5468">Counts measured on the retail extract. Container counts exclude sound.pak and entries over 8 MB.</text>
+      </svg>
+    </div>
+    <figcaption>
+      The three amber lines are the joins. Each is a hash lookup, and each is a
+      place a port can silently take the wrong branch: an archive TOC miss
+      returns nothing, and a field the disc never values reads as
+      <span class="m">0.0</span> rather than as an error.
+    </figcaption>
+  </figure>
+</section>
+
+<!-- ══════════════════════════════════════════════════════════════════════ -->
+<section>
+  <h2><span class="idx">03</span> <span>Archives</span> <span class="rest">where the mass actually sits</span></h2>
+
+  <div class="col">
+    <p>
+      Two archives hold most of the disc. <span class="m">sound.pak</span> is
+      1.07 GB across five data segments — more than every other archive
+      combined — and <span class="m">GP_HANGAR_ARSENAL.pak</span> is large for a
+      menu because it is <em>stage-scoped</em>: 168 of its objects are 28
+      missions × 6 languages, each a complete Hangar configuration.
+    </p>
+  </div>
+
+  <div class="tbl-scroll">
+  <table>
+    <thead>
+      <tr><th>Archive</th><th class="num">Entries</th><th class="num">Stored</th><th>What it is</th></tr>
+    </thead>
+    <tbody>
+      <tr><td>sound.pak</td><td class="num">9 519</td><td class="num">1.07 GB</td><td><span class="note">every XMA1 bank — music, jingles, SFX, both voice languages</span></td></tr>
+      <tr><td>GP_HANGAR_ARSENAL.pak</td><td class="num">1 538</td><td class="num">67.2 MB</td><td><span class="note">28 stages × 6 languages of Hangar config, plus item text</span></td></tr>
+      <tr><td>GP_MAIN_GAME_{D,E,F,I,J,S}</td><td class="num">1 119 ea.</td><td class="num">4.6 MB ea.</td><td><span class="note">the mission data set — stages, units, routes, dialogue</span></td></tr>
+      <tr><td>GP_READY_ROOM.pak</td><td class="num">1 106</td><td class="num">67.6 MB</td><td><span class="note">largest UI pak; ISL script bytecode + link map</span></td></tr>
+      <tr><td>GP_MAIN_GAME_*2D <span class="chip c-no">unnamed</span></td><td class="num">711 ea.</td><td class="num">15.2 MB ea.</td><td><span class="note">six paks, 0 % of names recoverable — see §06</span></td></tr>
+      <tr><td>DefTables.pak <span class="m">hidden/</span></td><td class="num">1 465</td><td class="num">—</td><td><span class="note">definition tables; 804 of 1 465 names resolved</span></td></tr>
+      <tr><td>movie/{eng,jpn,deu,esp,fra,ita}</td><td class="num">117 ea.</td><td class="num">1.8 MB ea.</td><td><span class="note">subtitles, telop overlays and fonts — <em>not</em> voice</span></td></tr>
+      <tr><td>tables.pak</td><td class="num">79</td><td class="num">330 KB</td><td><span class="note">the registries: sound cues, the cutscene manifest</span></td></tr>
+      <tr><td>MiscBin.pak <span class="m">hidden/</span></td><td class="num">40</td><td class="num">—</td><td><span class="note">0 names resolved</span></td></tr>
+      <tr><td>fonts.pak</td><td class="num">3</td><td class="num">2.4 MB</td><td><span class="note">the three shipped typefaces</span></td></tr>
+    </tbody>
+  </table>
+  </div>
+
+  <div class="note-box">
+    <span class="lbl">One entry lies about its size</span>
+    <span class="m">Static.slb</span>, the sound-effect bank, sits at the highest
+    offset in <span class="m">sound.pak</span> and declares
+    <strong>616 768 bytes more than the disc holds</strong>. This is not a bad
+    extract — <span class="m">sound.p04</span> matches the ISO's own directory
+    record — and a sweep of every archive finds this entry over-running and no
+    other. The last entry's size field is an allocation size. A reader must
+    allow a short read there, and <em>only</em> there.
+  </div>
+</section>
+
+<!-- ══════════════════════════════════════════════════════════════════════ -->
+<section>
+  <h2><span class="idx">04</span> <span>Container formats</span> <span class="rest">what each blob turns into</span></h2>
+
+  <div class="tbl-scroll">
+  <table>
+    <thead>
+      <tr><th>Magic</th><th>Content</th><th>State</th><th>Reach</th></tr>
+    </thead>
+    <tbody>
+      <tr><td><strong>IDXD</strong></td><td><span class="note">self-describing record/field table — the game's whole data layer</span></td><td><span class="chip c-ok">confirmed</span></td><td class="num">7 750 / 7 750 objects</td></tr>
+      <tr><td><strong>IXUD</strong></td><td><span class="note">the same container, UTF-16BE, offsets in <em>chars</em></span></td><td><span class="chip c-ok">confirmed</span></td><td class="num">1 104 / 1 104 objects</td></tr>
+      <tr><td><strong>T8aD</strong></td><td><span class="note">2D texture — a list of arbitrary sub-rectangles, not a tile grid</span></td><td><span class="chip c-ok">confirmed</span></td><td class="num">19 216 / 19 216</td></tr>
+      <tr><td><strong>RATC</strong></td><td><span class="note">UI bundle; children are sprites, layout records and primitives</span></td><td><span class="chip c-ok">confirmed</span></td><td class="num">10 144 / 10 148 refs</td></tr>
+      <tr><td><strong>LSTA</strong></td><td><span class="note">sprite display list — count covers T8aD <em>and</em> PRMD</span></td><td><span class="chip c-ok">confirmed</span></td><td class="num">64 / 64</td></tr>
+      <tr><td><strong>XBG7</strong></td><td><span class="note">mesh; index pool then vertex pool, layout declared per sub-mesh</span></td><td><span class="chip c-part">99.25 %</span></td><td class="num">6 247 / 6 294</td></tr>
+      <tr><td><strong>XPR2</strong></td><td><span class="note">texture package — de-tile, A8R8G8B8 and DXT1</span></td><td><span class="chip c-part">partial</span></td><td class="num">channel order confirmed</td></tr>
+      <tr><td><strong>SLB</strong></td><td><span class="note">XACT bank of XMA1 sub-waves; two layouts, one headerless</span></td><td><span class="chip c-part">35/36 shared</span></td><td class="num"><span class="m">JNGL_001</span> fails</td></tr>
+      <tr><td><strong>GDHA</strong></td><td><span class="note">save file — zlib payload, chunk stream, round-trips byte-identically</span></td><td><span class="chip c-part">~11 ❔ fields</span></td><td class="num">545 bytes</td></tr>
+      <tr><td>TTF / OTF</td><td><span class="note">stock OpenType</span></td><td><span class="chip c-ok">confirmed</span></td><td class="num">54</td></tr>
+      <tr><td><strong>ISB</strong></td><td><span class="note">ISL mission-script bytecode</span></td><td><span class="chip c-part">partial</span></td><td class="num">builtins documented</td></tr>
+      <tr><td><strong>PRT</strong></td><td><span class="note">telop — on-screen text overlay for cutscenes</span></td><td><span class="chip c-none">no parser</span></td><td class="num">22 bound</td></tr>
+      <tr><td><strong>BIN</strong></td><td><span class="note">collision meshes, <span class="m">CollisionSet_S&lt;NN&gt;.bin</span></span></td><td><span class="chip c-none">no parser</span></td><td class="num">documented only</td></tr>
+    </tbody>
+  </table>
+  </div>
+</section>
+
+<!-- ══════════════════════════════════════════════════════════════════════ -->
+<section>
+  <h2><span class="idx">05</span> <span>The domain chains</span> <span class="rest">what references what</span></h2>
+
+  <div class="col">
+    <p>
+      Each of these starts from something the player can see and ends at bytes on
+      the disc. Where a chain has a hop that looks like it should be direct and
+      is not, that hop is called out — those are where a naive port breaks.
+    </p>
+  </div>
+
+  <h3>Mission</h3>
+  <div class="col">
+    <p>
+      One IDXD object per stage in every language pak. Its
+      <span class="m">StageResource</span> record is the hub: nineteen fields
+      naming the 3D packages, the enemy roster, the routes, the collision set
+      and the localised objective strings.
+    </p>
+  </div>
+  <div class="dia">
+<pre class="mermaid">
+%%{init: {'theme':'base','themeVariables':{'primaryColor':'#1e2029','primaryTextColor':'#e8e9ef','primaryBorderColor':'#4fd0e0','lineColor':'#8a8fa3','fontFamily':'ui-monospace, Menlo, monospace','fontSize':'13px','clusterBkg':'#16171f','clusterBorder':'#2b2e3a'}}}%%
+flowchart LR
+  A["GP_MAIN_GAME_&lt;lang&gt;.pak"] --> B["Stage_S&lt;NN&gt; record"]
+  B --> C["StageResource"]
+  C --> D["Stage_S&lt;NN&gt;.xpr<br/>BG_&lt;place&gt;.xpr"]
+  C --> E["EnumUnit_S&lt;NN&gt;.tbl"]
+  C --> F["UnitGroup_S&lt;NN&gt;.tbl<br/>squadron roster"]
+  C --> G["Route_S&lt;NN&gt;.tbl<br/>FormationSet_S&lt;NN&gt;.tbl"]
+  C --> H["CollisionSet_S&lt;NN&gt;.bin"]
+  C --> I["EnumLocalString_S&lt;NN&gt;.tbl"]
+  B --> J["Stage\script.tbl"]
+  J --> K["StageNN.ssb<br/>ISL bytecode"]
+</pre>
+  </div>
+
+  <h3>Arsenal — the four-hop trap</h3>
+  <div class="col">
+    <p>
+      The Hangar lists 59 weapons; the disc's <span class="m">Weapon</span> table
+      has 131, and the two name sets overlap in <strong>zero</strong> values.
+      That is not a mismatch to be reconciled — it is the wrong join. An arsenal
+      item names a <em>hardpoint slot</em>, and the slot carries the weapon.
+    </p>
+  </div>
+  <div class="hops">
+    <div class="hop"><span class="n">01</span><span class="b">loadout record &nbsp;<span style="color:var(--text-faint)">— flight position × pilot, e.g. Rhino2-Ellen</span><span class="d">Names <code>Arm1</code> / <code>Arm2</code> / <code>Arm3</code> / <code>Nose</code> — which are not items either.</span></span></div>
+    <div class="hop"><span class="n">02</span><span class="b">per-slot allow-list record<span class="d">Its only <em>named</em> field is <code>Type</code>; the candidate items live in its positional, unnamed fields, in order.</span></span></div>
+    <div class="hop"><span class="n">03</span><span class="b">arsenal item &nbsp;<span style="color:var(--text-faint)">→ .PlayerWeapon</span><span class="d">Resolves to <code>Turret_050</code> — a slot on the player craft's own unit table. 59 of 59 do; 0 of 59 name a weapon.</span></span></div>
+    <div class="hop"><span class="n">04</span><span class="b">turret slot &nbsp;<span style="color:var(--text-faint)">→ .WeaponID</span><span class="d">And <em>this</em> is the <code>Weapon</code> record.</span></span></div>
+  </div>
+
+  <h3>Audio</h3>
+  <div class="col">
+    <p>
+      One IDXD object in <span class="m">tables.pak</span> is the whole cue
+      index. Its <span class="m">SOUNDS</span> record is the only record found on
+      the disc that is entirely named fields — 5 798 of them — and the names are
+      the join key. Cue ids are partitioned by family with no overlap.
+    </p>
+  </div>
+  <div class="dia">
+<pre class="mermaid">
+%%{init: {'theme':'base','themeVariables':{'primaryColor':'#1e2029','primaryTextColor':'#e8e9ef','primaryBorderColor':'#4fd0e0','lineColor':'#8a8fa3','fontFamily':'ui-monospace, Menlo, monospace','fontSize':'13px'}}}%%
+flowchart LR
+  M["script message id"] --> S["SOUNDS<br/>cue name → sound id"]
+  S --> F["FILES<br/>5 135 bank paths"]
+  F --> H{{"name_hash"}}
+  H --> P["sound.pak<br/>9 519 entries"]
+  P --> X["XMA1 sub-waves"]
+  S -.-> C1["VOICE 1500–7331"]
+  S -.-> C2["SE 1–901"]
+  S -.-> C3["DEMO 8000–8408"]
+  S -.-> C4["BR 8500–8600"]
+  S -.-> C5["BGM 1001–1109"]
+</pre>
+  </div>
+  <div class="note-box">
+    <span class="lbl">Two things the paths do not tell you</span>
+    The 36 music, jingle and SFX banks sit at the table <em>root</em> with no
+    language component, so both <span class="m">sounds.tbl</span> files name
+    them. And a <span class="m">.slb</span> need not hold the track its name
+    claims: the movie voices are one continuous stream chunked into TOC entries
+    whose boundaries do not line up with the cues.
+  </div>
+
+  <h3>Cutscene</h3>
+  <div class="col">
+    <p>
+      One manifest record binds four assets per slot. Measured for this page:
+      104 slots over 101 distinct movies, 99 with a subtitle track, 99 with a
+      voice track, 22 with a telop overlay.
+    </p>
+  </div>
+  <div class="dia">
+<pre class="mermaid">
+%%{init: {'theme':'base','themeVariables':{'primaryColor':'#1e2029','primaryTextColor':'#e8e9ef','primaryBorderColor':'#4fd0e0','lineColor':'#8a8fa3','fontFamily':'ui-monospace, Menlo, monospace','fontSize':'13px'}}}%%
+flowchart LR
+  MF["cutscene manifest<br/>tables.pak"] --> MV["MOVIE<br/>dat/movie/&lt;name&gt;.wmv"]
+  MF --> TL["TELOP<br/>&lt;lang&gt;.pak+*.prt"]
+  MF --> SB["SUBTITLE<br/>&lt;lang&gt;.pak+SUBTITLE_*.tbl"]
+  MF --> VT["VOICETRACK<br/>cue name"]
+  SB --> IX["IXUD caption keys"]
+  IX --> TX["GP_MAIN_GAME_&lt;lang&gt;<br/>8 800 text keys"]
+  VT --> SC["sound cue → .slb region"]
+</pre>
+  </div>
+
+  <h3>UI screen</h3>
+  <div class="col">
+    <p>
+      One archive per screen; each RATC bundle is one context × language build.
+      A bundle's declaration table lists every element with its parent and pivot;
+      the placement region right after it gives each element a keyframe group.
+      Both the tutorial pause menu and the title main menu rebuild
+      pixel-accurately from the disc alone.
+    </p>
+    <p>
+      Two things are <em>not</em> what they look like. The resting position is
+      neither the first nor the last keyframe — it is the plateau. And the
+      declaration table is <strong>not</strong> the paint order: a per-draw
+      capture of the running title screen paints element 13 first and elements
+      0 and 1 late. The real order is a second, reordered child array the screen
+      object keeps at runtime — deriving it from the bundle is still open.
+    </p>
+  </div>
+
+  <h3>Save</h3>
+  <div class="col">
+    <p>
+      545 bytes: a <span class="m">GDHA</span> container, a zlib payload, then a
+      chunk stream. The 54-byte develop blob has the alphabet <span class="m">0
+      locked / 2 developable / 4 developed</span>, and is indexed by
+      <span class="m">strings.tbl</span> order — the display order <em>plus</em>
+      the cut items only the localisation file lists. <span class="m">weapon.tbl</span>'s
+      id list is not the index space; that it is also 54 long is a coincidence,
+      and the two agree only to index 32.
+    </p>
+  </div>
+  <div class="note-box">
+    <span class="lbl">The stale-summary trap</span>
+    The in-game Details panel reads a <em>summary copy</em> held in the container
+    header, not the payload. Edit the payload alone and the panel keeps showing
+    the old values — which reads exactly like a failed parse.
+  </div>
+</section>
+
+<!-- ══════════════════════════════════════════════════════════════════════ -->
+<section>
+  <h2><span class="idx">06</span> <span>References that go nowhere</span> <span class="rest">a port has to survive these</span></h2>
+
+  <div class="col">
+    <p>
+      These are not gaps in the reverse engineering. They are properties of the
+      shipped disc, and each one was found by a check that expected the opposite.
+    </p>
+  </div>
+
+  <div class="tbl-scroll">
+  <table>
+    <thead><tr><th>Reference</th><th>Where</th><th>Status</th></tr></thead>
+    <tbody>
+      <tr><td><span class="m">pmbase.t32</span></td><td><span class="note">named by <span class="m">pmbase.rat</span> in all four <span class="m">GP_STAGE_CLEAR</span> language builds</span></td><td><span class="chip c-no">nowhere on disc</span></td></tr>
+      <tr><td><span class="m">SUBTITLE_S12B.tbl</span></td><td><span class="note">bound by the manifest, in all six languages</span></td><td><span class="chip c-no">resolves in none</span></td></tr>
+      <tr><td><span class="m">logo1…logo4</span>, <span class="m">SYLPH_HD720p_8M-CBR_2ch</span></td><td><span class="note">manifest-bound movies</span></td><td><span class="chip c-no">no .wmv</span></td></tr>
+      <tr><td><span class="m">dat\GP_TEST\</span></td><td><span class="note">a debug archive the script manifest points at</span></td><td><span class="chip c-no">not shipped</span></td></tr>
+      <tr><td>6 × <span class="m">GP_MAIN_GAME_*2D</span></td><td><span class="note">711 entries each; eleven other paks are at 100 % by the same method</span></td><td><span class="chip c-no">0 % named</span></td></tr>
+      <tr><td><span class="m">GP_READY_ROOM.pak</span></td><td><span class="note">the largest UI pak on the disc</span></td><td><span class="chip c-no">6 of 1 106 named</span></td></tr>
+      <tr><td>42 ISL script-symbol keys</td><td><span class="note">hash-only field keys in <span class="m">&lt;lang&gt;\script\ID.tbl</span></span></td><td><span class="chip c-no">provably unrecoverable</span></td></tr>
+      <tr><td>9 of 101 cutscenes</td><td><span class="note">no English transcript resolves</span></td><td><span class="chip c-part">unexplained</span></td></tr>
+      <tr><td><span class="m">JNGL_001.slb</span></td><td><span class="note">headerless bank; payload is not a whole number of XMA1 packets</span></td><td><span class="chip c-part">does not decode</span></td></tr>
+    </tbody>
+  </table>
+  </div>
+
+  <div class="note-box">
+    <span class="lbl">Why the 2D paks matter more than they look</span>
+    Six archives at <em>exactly</em> 0.0 %, all six, 711 entries each — while
+    eleven menu paks hit 100 % in the same run. That control is what makes it a
+    finding rather than a failed guess: the naming method works, and these
+    archives are outside it. Whatever names their contents is not a path hashed
+    the way every other archive's is.
+  </div>
+</section>
+
+<!-- ══════════════════════════════════════════════════════════════════════ -->
+<section>
+  <h2><span class="idx">07</span> <span>Still open</span></h2>
+
+  <div class="col">
+    <ul class="plain">
+      <li><strong>UI paint order from the bundle.</strong> Solved at runtime, not statically — and static is what a port needs.</li>
+      <li><strong>The <span class="m">.prt</span> telop format.</strong> 22 cutscenes bind one; no parser exists.</li>
+      <li><strong>Collision meshes.</strong> <span class="m">CollisionSet_S&lt;NN&gt;.bin</span> is documented and unparsed.</li>
+      <li><strong>47 XBG7 resources</strong> still miss — mostly pose/proxy composites and damage variants, not a threshold away.</li>
+      <li><strong>~11 GHAD save fields</strong> unnamed, and difficulty-versus-stage undecided: three fields hold the value 2.</li>
+      <li><strong>The naming of the 2D and Ready Room archives</strong>, which is the largest single block of unreachable content on the disc.</li>
+    </ul>
+  </div>
+</section>
+
+<footer>
+  Counts measured on the retail extract (USA/Europe, En/Ja). Container-format
+  counts exclude <span class="m">sound.pak</span> and entries over 8 MB.<br/>
+  Confidence follows the corpus convention — confirmed · partial · refuted —
+  and is per-claim, never per-document.
+</footer>
+
+</div>

docs/re/structures/idxd-unnamed-keys.md

@@ -0,0 +1,253 @@
+# IDXD field keys that carry no name
+
+- **Confidence:** ✅ the census and the identification of the hash-keyed set ·
+  ✅ the last characters of 30 of the 42 names · ❌ **no name was recovered**
+- **Tool:** `tools/re-capture/idxd_unnamed_keys.py` (`census` / `idtbl` / `crack` / `selftest`)
+- **Data:** [`docs/re/data/idxd-unnamed-field-keys.txt`](../data/idxd-unnamed-field-keys.txt)
+- **Seen in:** every `dat/*.pak` + `hidden/*.pak` on the disc; the interesting 42
+  are in `dat/GP_READY_ROOM.pak`, file `<lang>\script\ID.tbl`
+- **Depends on:** the IDXD record/field table and `tag_hash`, which live on branch
+  `auto/re-idxd-container` — **not on `main`**, so this note transcribes what it
+  needs and the tool carries its own copy of `tag_hash` rather than importing one.
+
+An IDXD field entry is `(key, name_off, value_off)`. Usually `name_off` points at
+the field's own name in the string pool and `key == tag_hash(name)`. When
+`name_off` is `0xFFFFFFFF` the pool holds no name and the reader has to know what
+`key` means from somewhere else. This note answers: how many such keys are there,
+what are they, and can the names be inverted out of the hash?
+
+**Short answer: 7 094 distinct keys, of which 7 052 are not hashes at all and 42
+are. None of the 42 names was recovered — but they are now identified, their call
+graph is reconstructed, and 30 of them have their last two-to-four characters
+pinned algebraically.**
+
+## ✅ The census
+
+Measured by walking all 33 `dat/*.pak` plus `hidden/DefTables.pak` and
+`hidden/MiscBin.pak` (`.pNN` segments joined, `Z1` payloads inflated):
+
+| | |
+|---|---|
+| IDXD objects / records / field entries | 7 750 / 190 782 / **2 757 039** |
+| named field entries | 1 271 462 |
+| unnamed field entries (`name_off == 0xFFFFFFFF`) | 1 485 577 |
+| distinct keys named *somewhere* on disc | 12 174 |
+| **distinct keys never named anywhere** | **7 094** |
+|  … below `0x00010000` | 7 052 |
+|  … in `[0x10000, 0x01000000)` | **0** |
+|  … at or above `0x01000000` | **42** |
+
+Parse failures: 0. `tag_hash` reproduces the key of **1 271 462 / 1 271 462**
+named field entries disc-wide (`idxd_unnamed_keys.py selftest`), which is the
+validation gate for everything below — far past the 200-pair bar this
+investigation was asked to clear.
+
+### ✅ "504 hash-keyed fields disc-wide" is 504 **entries**, not 504 keys
+
+`INDEX.md` (on `auto/re-idxd-container`) records *504 fields disc-wide that are
+hash-keyed with no name*. That number is exactly reproduced here — and it counts
+**field entries**, not distinct keys:
+
+```
+42 distinct keys  x  6 language copies of the same object  x  2 records = 504
+```
+
+The three unnamed populations add up:
+`504` (hash-keyed) `+ 1 380 324` (ordinal) `+ 104 749` (key `0x00000000`, i.e.
+ordinal 0, held apart only because `tag_hash("") == 0` makes it look "named"
+somewhere) `= 1 485 577`. So the brute-force target was never 504 names; it was
+**42**.
+
+### ✅ The gap at `[0x10000, 0x01000000)` is what separates hashes from ordinals
+
+`tag_hash` puts the byte-sum checksum of the name in the **top byte**. A real
+hash therefore falls below `0x01000000` only when the name's byte sum is `0 mod
+256` — about 1 name in 256 — *and* its low 24 bits are also tiny. Of the 12 174
+keys that do carry a name, 75 have a zero top byte, and the smallest of those is
+`0x0002677C`; the never-named ordinal band tops out at `0x2198`. There is a clean
+three-order-of-magnitude gap and **not one key in it**. The split is measured,
+not assumed.
+
+## ✅ The 7 052 ordinals are not hashes and never were
+
+They are author-assigned element ids written straight into the tag slot. For
+1 404 924 of the 1 485 577 unnamed entries the key **equals the field's index
+within its record**; a further 42 750 are index + 1. The rest are hand-numbered
+with deliberate gaps, e.g. the hangar `WEAPONS` record runs
+`…0x30 0x31 … 0x35`, jumps to `0x50 … 0x55`, then `0x61` — an id space, not a
+counter. `tables.pak`'s `FILES` record numbers 5 135 resources from `0x3E9`
+(1001) upwards.
+
+**Do not feed these to a reverse lookup.** Confirmed by the strongest possible
+test: `tag_hash("BGM_001") = 0xC662435B`, while the key of the field whose value
+is `BGM_001.slb` is `0x000003E9`. Zero of 5 135 `FILES` keys match a hash of
+their own value under any stem/case/extension variant.
+
+Full per-key listing: Part 3 of the data file. Per-schema value profiles: Part 2.
+
+## ✅ What the 42 hash-shaped keys are
+
+All 42 live in **six byte-identical copies** of one object — `eng jpn fra deu ita
+esp \script\ID.tbl` inside `dat/GP_READY_ROOM.pak` (resolved through the IPFB TOC
+by `name_hash("eng\\script\\ID.tbl") = 0xC40BC120`, and pointed at by the
+`SCRIPT_PATH` field of `tables.pak`'s `BASE_INFO`, whose value is
+`dat\GP_READY_ROOM.pak+eng\script\`).
+
+The object has exactly two records, `FILE` and `OFFSET`, carrying **the same 42
+keys in the same order** — it is a column store:
+
+```
+key(tag_hash of an ISL script symbol)  ->  FILE   = the .isb it is defined in
+                                           OFFSET = where in that file
+```
+
+It is the artefact of the pass the executable announces as
+`silph::GamePart_ReadyRoom::Impl::PrepareScript - isl script prescanning start.`
+— a link map from symbol hash to definition site. The 34 `.isb` files it names
+are all present in the same pak (`eng\script\stage01.isb` etc.).
+
+### ✅ Independent confirmation: the keys appear in the bytecode
+
+41 of the 42 keys occur verbatim as **little-endian 32-bit words** inside the
+`.isb` bytecode, and where they occur reconstructs a coherent call graph
+(Part 4 of the data file):
+
+| defined in | referenced from |
+|---|---|
+| `stage01..16.isb`, `challenge01..06.isb`, `tutorial0N01.isb` (30 symbols) | `main.isb` only |
+| `function.isb` (5 symbols) | the stage and challenge scripts |
+| `function_tutorial.isb` (6 symbols) | the six tutorial scripts |
+| `main.isb` (1 symbol) | **nothing** — the root entry point |
+
+That is exactly the shape a launcher + shared-helper-library arrangement should
+have, and it is the reason these keys can be called hashes with confidence rather
+than "large ordinals": ordinals are not stored as call targets in code.
+
+🟡 `OFFSET` is **base 36**. Every value uses only `[0-9a-z]`, and read as base 36
+they are small ascending numbers per file: `function.isb` → 1, 9, 19, 35, 58;
+`function_tutorial.isb` → 1, 12, 23, 34, 45, 50; `tutorial0101.isb` → 1, 61, 191.
+The first symbol of every file is 1. Whether the unit is a statement index, a
+line, or a word offset is ❔ — not settled here.
+
+## ✅ 30 of the 42 names end in the digits of their own filename
+
+This is *forced* by the hash, not guessed. `tag_hash`'s low 24 bits are a
+base-256 polynomial mod `0x00FFFFDF`, so bumping the character `k` places from
+the end changes the low bits by `256^k mod M` (1, `0x100`, `0x10000`, `0x21`, …)
+and the top byte by 1. Measured:
+
+| family | observed key deltas | forced conclusion |
+|---|---|---|
+| `stage01..09` | `+0x01000001` × 8 | last character increments by 1 |
+| `stage10..16` | `+0x01000001` × 6 | ditto |
+| `stage09 → stage10` | `0x8FA349EF → 0x87A34AE6` | low bits `+0xF7 = 0x100 − 9`, top `−8`: the last two characters go `"09" → "10"` |
+| `challenge01..06` | `+0x01000001` × 5 | last character increments by 1 |
+| `tutorial0101 → 0201 … 0601` | `+0x01010000` × 5 | the character **two** from the end increments |
+| `tutorial0101`'s two siblings | `+0x01000001`, `+0x02000002` | last character `+1`, `+2` |
+
+So the sixteen stage symbols end `"01" … "16"`, the six challenge symbols end
+`"01" … "06"`, and the eight tutorial symbols end `"0101" "0102" "0103" "0201"
+"0301" "0401" "0501" "0601"` — matching their `.isb` filenames exactly. The
+remaining 12 (`function.isb` × 5, `function_tutorial.isb` × 6, `main.isb` × 1) are
+unconstrained.
+
+That is the whole of the recovered name information. **The prefixes are not
+recovered.**
+
+## ❌ Cracking: a null result, and the arithmetic that says why
+
+`tag_hash` maps onto `256 × 0x00FFFFDF ≈ 2^32` values, so a search over `S`
+candidates yields on average `S / 2^32` **false** preimages *per target*. That is
+the number every attempt below is judged against.
+
+| attack | candidates (space `S`) | E[false] per target | hits |
+|---|---|---|---|
+| every distinct disc string (IDXD names, record names, field values) | 105 393 | 0.000025 | **0** |
+| every string in the executable (`.pe`) | 75 912 | 0.000018 | **0** |
+| every ASCII run ≥3 in every pak payload except `sound.pak` (incl. `.ssb` symbol tables, XML, XPR) | 1 023 671 | 0.00024 | **0** |
+| all three combined, hashed against all 42 | 1 204 976 | 0.00028 | **0** |
+| `printf`-style substitution: 49 139 format strings × 80 numeric substitutions | 161 200 | 0.00004 | **0** |
+| hand-built guess list (`main`/`Stage`/`Mission`/`ReadyRoom`/… × prefixes × decorations × numbers) | 506 520 | 0.00012 | **0** |
+| two-token composition over a vocabulary mined from disc + exe identifiers (`t1 + sep + t2`, sep ∈ `"" _ -`) — this is what `idxd_unnamed_keys.py crack --pe …` runs | 3.48 × 10⁸ | 0.081 | **0** |
+| the same, with each family's forced digit suffix appended | 1.18 × 10¹⁰ across the sweep | 2.8 total | 1 (`"Cj-format 01"` — noise, and the same string for all six challenge keys, i.e. **one** false prefix) |
+| meet-in-the-middle exhaustive preimage, `[A-Za-z0-9_]`, ≤ 6 chars before the known suffix | 6.3 × 10¹⁰ | ~15 | noise only |
+
+The last row is the important one. Exhaustive search **succeeds** — it is not
+that the search is broken. Fed `tag_hash("Stage01")` it returns
+`['F4D_kl01', 'Stage01', 'be_zT01', 'cd_Yu01']`: the right answer plus three
+collisions, which is what `63^5 / 2^32 ≈ 0.2` … `63^6 / 2^32 ≈ 15` predicts. Fed
+the real target `0x87A349E7` with suffix `"01"` it returns **nothing**, so the
+prefix is **longer than 6 characters** over that alphabet.
+
+And that is where it stops being useful. Measured, not extrapolated: at 7
+characters target `0xA40C6DF7` has **1 176** preimages (`'1T1E1B6'`,
+`'24A7O0G'`, `'4quqkkC'`, …). At 8 the expectation is ≈ 58 000. A hash with a
+24-bit modulus simply does not have enough entropy to name an 8+ character
+identifier uniquely, so **no amount of compute recovers these names from the hash
+alone** — only a corpus containing the actual string can, and the disc does not
+contain it.
+
+### 🔴 Refuted along the way (kept, not deleted)
+
+* **"The symbol is the filename stem, in some case/decoration."** Refuted
+  directly: `tag_hash` of `stage01`, `Stage01`, `STAGE01`, `stage_01`,
+  `mission01`, and 30-odd relatives is not `0x87A349E7`.
+* **"The symbol is `<common prefix> + <filename stem> + <number>`."** Refuted
+  *algebraically*, without searching. If `name = A + "stage01"` and
+  `name = A + "challenge01"` share one `A`, then `A`'s byte sum is pinned twice
+  and the two values must agree. They do not, for lowercase, Capitalised or
+  UPPER stems, with or without a `_`/`-` separator — 9 pairs tested, 9
+  contradictions.
+* **"The name is somewhere in the `.isb` files."** Refuted: the `.isb` payloads
+  contain no ASCII symbol names at all. They reference symbols purely by hash —
+  which is *why* the prescan link map exists.
+* **"The hash constants might be in the executable next to a name table."**
+  Refuted: none of the 42 values occurs in the `.pe` image in either endianness.
+* **"IXUD might hold more hash-keyed nameless fields."** Refuted by measurement:
+  534 IXUD objects, 624 488 field entries, **8** distinct unnamed tags — all of
+  them ordinals `0…7` (the weapon `CATEGORY_DESC` list). Zero hash-shaped.
+* **⚠️ "There are ~504 keys to crack."** Withdrawn — 504 is the *entry* count.
+  See above.
+
+## Coverage / limits
+
+- The census covers every IDXD object the disc has (7 750). `sound.pak` holds no
+  IDXD objects and `dat/movie/*.wmv` and `hidden/resource3d/*.xpr` are not
+  containers; strings from `resource3d` were nevertheless folded into the corpus
+  attack.
+- The 42 targets are fully characterised as *references*; their *spelling* is
+  unrecovered and, per the arithmetic above, unrecoverable from the disc.
+
+## Evidence log (append-only; newest last)
+
+- `2026-08-26` — Disc-wide walk of 7 750 IDXD objects / 2 757 039 field entries
+  with `tag_hash` self-check at 1 271 462/1 271 462. Census → confidence
+  `CONFIRMED` for the counts and for the ordinal/hash split.
+- `2026-08-26` — 42 hash-shaped keys localised to six copies of
+  `<lang>\script\ID.tbl`; cross-checked against the `.isb` bytecode, where 41 of
+  42 appear as little-endian call targets forming a consistent call graph →
+  `CONFIRMED` that they are ISL script-symbol hashes.
+- `2026-08-26` — Key-delta arithmetic pins the trailing digits of 30 of the 42
+  names → `CONFIRMED` (forced by the hash's polynomial structure, three
+  independent families agreeing).
+- `2026-08-26` — Seven corpus/composition/brute-force attacks, none producing a
+  hit above the noise floor; exhaustive search validated on a known name and
+  shown to return nothing at ≤ 6 characters → the names are **not recovered**,
+  and the negative result is quantified rather than asserted.
+
+## Open questions / what would raise confidence
+
+- **The 12 unconstrained names** (`function.isb` ×5, `function_tutorial.isb` ×6,
+  `main.isb` ×1) have no digit structure to exploit at all.
+- **What would actually work:** a build artefact containing ISL source or a symbol
+  list (none on the retail disc); or observing the game *construct* one of these
+  strings at runtime — `PrepareScript` builds the table from `.isb` contents, but
+  whatever `main.isb`'s root symbol is called, the name existed only in the
+  compiler's input. A `--mem-watch` on the ReadyRoom lookup path would show
+  whether any caller ever passes a literal name rather than a precomputed hash;
+  that is the one remaining honest route and it was **not** attempted here (this
+  was a static-only investigation).
+- **`OFFSET`'s unit** — base-36 is settled, what it counts is not.
+- The `.isb` instruction encoding is only sketched here (a length byte at
+  `byte[2]`, call payloads leading with the target hash). It is not the `.ssb`
+  ISL bytecode documented elsewhere and deserves its own note.

docs/re/structures/isl-builtins.md

@@ -3,6 +3,9 @@
 Status: ✅ table encoding, calling convention and the `ScriptPhase` state layout;
 ✅ ~135 of 147 handlers characterised from the disassembly; 🟡 three resolved
 only partially; ❔ the interpreter-command table is only partly recovered.
+✅ built-ins **26 / 29 / 101** are now named end to end (HP %, damage-taken %,
+broadcast invulnerability); 🟡 **28** writes the matching damage-**dealt** field
+but its one consumer is a single weapon path — see below.
 
 Companion to [isl-bytecode](isl-bytecode.md) (the instruction encoding) and
 [mission-phase-advance](../mission-phase-advance.md) (why phases hinge on these).
@@ -168,56 +171,269 @@ words**: a descriptor offset and the message id.
 That fixes the id format as `0xED08 nn DE`, and the ids already known from other
 work fit it: opcode 514 → `00DE`, 803 → `07DE`, 999 → `0FDE`.
 
-🟡 The pump's arm for `0xED0802DE` does **not** apply an effect — it walks the
+✅ **The pump's arm for `0xED0802DE` applies no effect itself** — it walks the
 unit's child list at `[unit+320]`/`[unit+324]` and **rebroadcasts** to each child
-as `0xED0902DE`. So `0xED08…` is the to-unit family and `0xED09…` the to-child
+as `0xED0902DE`. So `0xED08…` is the to-group family and `0xED09…` the
-one, and the terminal effect is one link further on. ❌ Not followed; 26/28/29
+to-individual one. That link is now followed all the way to the effect — see
-remain unnamed.
+below.
 
-### 🟡 Built-ins 26 / 28 / 29 are one family — and `damage_unit` looks mis-named
+### ✅ Built-ins 26 / 28 / 29 RESOLVED — HP, damage dealt, damage taken
 
-Method-diffing put the structure beyond doubt but did not reach the semantics.
+The chain was followed end to end for all three, from the dispatch table to the
+field write. Nothing here is inferred from shape; every hop was read.
 
-| built-in | vtable slot | method | opcode | sites |
+| built-in | vtable slot | method | opcode | cmd word | interp thunk | opcode handler | to-group msg | to-child msg | arm | writes |
-|---|---|---|---|---|
+|---|---|---|---|---|---|---|---|---|---|---|
-| 26 `damage_unit` | 76 | `sub_8226ACD0` (67) | **800** | 97 |
+| **26** | 76 | `sub_8226ACD0` | 800 | `0xAB0320BA` | `0x822FF118` | `sub_823008C8` | `0xED0802DE` | `0xED0902DE` | `0x82398E8C` | `[unit+532]` = **HP** |
-| **28** | 84 | `sub_82268F98` (69) | **801** | 410 |
+| **28** | 84 | `sub_82268F98` | 801 | `0xAB0321BA` | `0x822FF120` | `sub_823009B8` | `0xED0803DE` | `0xED0903DE` | `0x8239926C` | `[unit+672]` |
-| **29** | 88 | `sub_822690B0` (69) | **802** | 164 |
+| **29** | 88 | `sub_822690B0` | 802 | `0xAB0322BA` | `0x822FF128` | `sub_82300AA8` | `0xED0804DE` | `0xED0904DE` | `0x823994C0` | `[unit+676]` |
-| 101 | 276 | `sub_822691C8` (78) | 802 (broadcast) | 133 |
 
-**28 and 29 differ in two words only** — the opcode (`0x21BA` vs `0x22BA`) and a
+The cmd word decodes as `0xAB` `opcode:16` `0xBA`, which is the same encoding
-descriptor pointer 8 bytes apart. Otherwise instruction-identical. All three take
+already recorded for 256 (`0xAB0100BA`), 513 (`0xAB0201BA`) and 996
-`(unit, double)`.
+(`0xAB03E4BA`) — `0x320/0x321/0x322` = 800/801/802.
 
-26 differs from both by one guard: it rejects only state 3, while **28 and 29
+Two links that the previous attempt did not have:
-reject states 1 and 3** (2 = active, 1/3/4 = gone/dead/invalid).
 
-#### The operand distributions separate them
+* the **to-group pump is `sub_8232C4C0`** (vtable `0x820AF1FC` slot 6), whose
+  arms at `0x8232C824` / `0x8232CB48` / `0x8232CC40` each walk the child list and
+  re-post with the `0xED09…` id, copying the float from `[msg+36]` unchanged;
+* the **to-individual handler is `sub_82398CC0`** (vtable `0x820B192C` slot 6),
+  the entity base class. Its `0xED0902DE` arm is reached by a `sub.`/`cmplwi 0x8200`
+  pair rather than a `lis`+`ori` compare, which is why a constant scan for
+  `0xED0902DE` finds only the *sender*. That is worth remembering: **a
+  subtract-based compare hides the constant from any scan that pairs
+  `lis` with `ori`.**
 
-| built-in | n | distinct | range | most common |
+#### ✅ 26 is `set_unit_hp_pct` — NOT `damage_unit`
-|---|---|---|---|---|
-| 26 | 97 | 7 | **[0, 100]** | **0 ×69**, 80 ×10, 100 ×6 |
-| 28 | 410 | 13 | **[0, 2000]** | 200 ×116, 120 ×76, 300 ×74 |
-| 29 | 164 | 6 | **[0, 100]** | **0 ×64**, 100 ×53, 50 ×38 |
 
-26 and 29 are percentage-shaped; 28 is an absolute quantity an order of magnitude
+`sub_8226ACD0` multiplies the double operand by the constant at `0x820C5688`,
-larger.
+which is **0.01** — so the operand is a percentage and the message carries a
+fraction. `0x82398E8C` then does, in its own terms:
 
-#### 🟡 `damage_unit` (26) is doubtful
+```
+new = min( max(def.HP * frac, 0.0), def.HP )    ; def = [unit+496]
+[unit+532] = new
+if new < FLT_EPSILON and old > 0:               ; crossed to zero
+    [unit+688] = 0.0 ; [unit+1340] = 1 ; [unit+692] = def.Delay
+```
 
-**69 of its 97 calls pass 0.** Dealing zero damage is a no-op, so 71 % of the
+Three independent facts pin the field:
-call sites would do nothing. *Setting* a percentage-valued property to 0 is a
-perfectly natural thing to do 69 times, and 29 has the same shape (0 ×64 of 164).
-The existing name predates this session and is not withdrawn, but it should not
-be relied on.
 
-#### ❌ Where this stopped
+* `[unit+496]` is the **unit definition** — the entity constructor
+  `sub_82393868` sets it from `sub_82348830` (the per-member definition
+  `std::map::find` already identified for built-in 15) at `0x82393BE4`;
+* `[def+84]` is **`HP`** in
+  `crates/sylpheed-formats/data/unit_definition_layout.txt`, and the same
+  constructor immediately does `[unit+532] = [def+84]` at `0x82393BF0` — so
+  `+532` *is* current HP, seeded from the datasheet maximum;
+* the crossing branch loads **`[def+584]` = `Delay`** into `[unit+692]` and sets
+  a flag — the destruction sequence. So a percentage of **0 destroys the unit**,
+  with the definition's own death delay.
 
-The three commands' descriptors sit at `0x820A8D10` / `+8` / `+16`. Following
+So the operand is *percent of maximum HP*, the write is absolute (a **set**, not
-them lands on data pointing into `0x8210E5xx`, which is **below the disassembly
+a subtract), and `damage_unit` is withdrawn: 100 heals to full, which no
-DB's range** (it starts at `0x82150000`) and contains no code — so that route
+"damage" primitive does.
-does not reach an execute method. Reaching opcodes 800–802's semantics needs the
+
-interpreter's command table, not the command objects.
+#### ✅ 29 is `set_unit_damage_taken_pct` — `[unit+676]` scales incoming damage
+
+`[unit+672]` and `[unit+676]` are **both initialised to 1.0** by the entity
+constructor (`0x8239395C`/`0x82393964`, from the float at `0x8208583C`), so both
+are multipliers whose neutral value is 1.0 and which built-ins 28/29 set to
+`operand/100`.
+
+`[unit+676]` has **three independent readers**, and every one of them multiplies
+a damage amount immediately before it is subtracted from `[unit+532]`:
+
+| reader | what it computes |
+|---|---|
+| `0x8237B20C` in `sub_8237B020` (craft subclass `0x820B0A3C` slot 6, the `0xED0200DE` damage arm) | `dmg = [msg+36] × def.ResistanceToPlayer × [unit+676]` |
+| `0x823803A4` in `sub_823800A8` (another subclass's damage arm) | the same product |
+| `0x82399FFC` in `sub_82398CC0` (the base class's continuous-damage arm) | `dmg = def.HP × globalRate × t × [unit+676]`, then `[unit+532] -= dmg` |
+
+`def+128` is `ResistanceToPlayer` in the layout file, which is the second
+corroboration that the object is the entity and the quantity is damage.
+
+#### 🟡 28 sets `[unit+672]`, and its one consumer scales damage DEALT
+
+The write is certain and the field's default (1.0) is certain. The **label** is
+one link weaker than 29's, and this is the honest state:
+
+`[unit+672]` is read in **exactly one place** in the image —
+`0x8237A44C`, inside `sub_823785A0`, which is vtable `0x820B0A3C` **slot 1**,
+i.e. the craft subclass's per-frame update. There it is copied into a 240-byte
+projectile spawn record at `+100`; `sub_8238F4D0` turns that record into a
+projectile with `[proj+300] = [rec+100]`; and `sub_8238FE10` builds the
+`0xED0200DE` damage message with **`[msg+36] = [proj+300] × charge × globalScale`**
+— the same `[msg+36]` that the readers above multiply by the *target's* `+676`.
+
+So the two fields are the two ends of one damage product: **`+672` on the
+shooter, `+676` on the target.** That is a tidy story and it is exactly the
+shape that has produced wrong names in this file before, so it is 🟡 and not ✅.
+
+❔ **What is not established**: that `+672` reaches *every* weapon. The one read
+site is on a charged-shot path (`[unit+2244]` is a charge accumulator compared
+against thresholds, `[unit+2268]` the resulting power), and the other damage
+sender in the same family, `sub_82388FF8`, computes
+`dmg = ammo.base × [proj+268] × k` with **no `+672` term at all**. Either the
+craft update funnels all firing through this one spawn, or `+672` scales only
+some weapons. Not settled.
+
+#### ✅ The operand-range test discriminates the three
+
+All three built-ins have the identical signature `(unit, double)` and the
+identical `× 0.01` conversion, so an operand ceiling is a real measurement rather
+than a coincidence:
+
+| built-in | n | distinct | min | max | inside [0, 100] |
+|---|---|---|---|---|---|
+| 26 | 97 | 7 | 0 | **100** | **97 / 97** |
+| 29 | 164 | 6 | 0 | **100** | **164 / 164** |
+| 28 | 410 | 13 | 0.1 | **2000** | 42 / 410 |
+
+26 and 29 respect a hard 100 ceiling — they are percentages of something with a
+natural maximum (HP; and "no more damage than normal"). 28 does not: it is a
+free multiplier that reaches 20×. 🟡 Note that 29 therefore **only ever makes a
+unit tougher**, never more fragile.
+
+#### ✅ The craft cross-tab — the same test that settled built-in 15
+
+Joining every call site to its squadron's craft through `UnitGroup_S<NN>.tbl`
+resolves **671 of 671** sites (26 + 28 + 29), none unknown. Full dump in
+[`data/isl-builtins-26-28-29-sites.txt`](../data/isl-builtins-26-28-29-sites.txt).
+
+**26** splits into three groups with nothing in between:
+
+| group | craft (sites) | values |
+|---|---|---|
+| disposable objects | `e201_ISCMissile` 17, `n001_TTRL_Box` 16, `f202_Cargo` 9, `e015_Puppy(_2)` 10, `mn500_FloatingMine` 3, `e011_Attacker_B` 2 | **0, and only 0** |
+| warships | `e106_Destroyer` 8, `f106_Destroyer` 8, `f105_Cruiser` 5, `e108_ASFrigate` 4, `e105_Cruiser` 2, `f101_Acropolis` 1 | 30 / 50 / 60 / 80 |
+| the player's craft in a tutorial | `..._Player_Ttrl1/2`, `..._T_Ttrl` (8) | **100** ×7, 40 ×1 |
+
+Scripted removal of props, pre-damaged capital-ship spawns, and healing the
+player to full at the start of a tutorial section — one field, three uses, and
+no other reading covers all three.
+
+**29** is dominated by the ships the mission must protect:
+
+| craft (sites) | values |
+|---|---|
+| player + wingman `DeltaSaber` variants (`_T`, `_W`, `_A`, `_Player`) 113 | **0** and **100**, alternating |
+| `n001_TTRL_Box` 9 | **0** only |
+| escorted TCAF hulls — `f202_Cargo` 14, `f106_Destroyer` 2, `f105_Cruiser` 2, `f104_Battleship` 1, `f102_LightCarrier` 1, `f101_Acropolis` 1 | 50 / 75 |
+| named ADAN aces — `e001_Elan_GR`, `_GR_Violeta` 6; `e010_Attacker_S` 18 | 40 / 50 |
+
+**28** stratifies by combat class and is applied almost only to ADAN craft:
+
+| class | craft (sites) | value |
+|---|---|---|
+| named bosses | `e003_ElanPlus_Margras` 4, `e005_ElanTypeQ_Margras` 1 | **2000** |
+| named aces | `e001_Elan_GR(_Violeta)` 6, `e013_ElanPlus_Taskent` 2 | **1000** |
+| elite fighters | `e004_ElanPlus_N` 19, `e009_Phantom` 16, `e002_Elan_N` 9, `e011_Attacker_B_HF` 3 | **500–600** |
+| line fighters | `e001_Elan` 24, `e010_Attacker_S` 21, `e011_Attacker_B` 6 | 200–300 |
+| capital hulls | `e106_Destroyer` 105, `e104_Carrier` 55, `e105_CruiserEX` 52, `e102_BattleshipEX` 26 | 100–300 |
+| background props | `f106_Destroyer_Inv`, `f102_LightCarrier_Inv`, `f101_Acropolis`, `f105_Cruiser` (5) | **0.1** |
+
+A monotone boss > ace > elite > line > prop ordering is what a firepower knob
+looks like. 🟡 It is also what several other knobs would look like, which is why
+the name stays PROBABLE and rests on the disassembly link above rather than on
+this table.
+
+#### ✅ The idiom that ties all three together
+
+The per-unit setup block that follows every deployment reads, e.g. Stage 06
+phase 3 at `0x0119AC` (from
+[`data/isl-builtins-26-28-29-sites.txt`](../data/isl-builtins-26-28-29-sites.txt)):
+
+```
+activate_unit(TCN001)   set_group_speed(TCN001, 400)   29(TCN001, 0)
+activate_unit(TCN002)   set_group_speed(TCN002, 400)   29(TCN002, 0)   28(TCN002, 50)
+activate_unit(TCN003)   set_group_speed(TCN003, 400)
+...                                                    26(TCN306, 50)
+```
+
+`15 / 29 / 28` is a **speed / toughness / firepower trio**, each a percentage
+override of the craft's datasheet, applied immediately after `activate_unit`;
+`26` joins it wherever a unit should arrive pre-damaged.
+
+And the scripted-drama use is unambiguous. Stage 06 makes the wingman flight
+TCN002 invulnerable at phase start (`29(TCN002, 0)`), then walks its HP down as
+the voice lines fire:
+
+```
+0x01A7B0  26(TCN002, 80)   ->  request_script_message(MSG_VOICE_D_065)
+0x01AAA0  26(TCN002, 50)   ->  request_script_message(MSG_VOICE_D_069)
+0x01ACEC  26(TCN002, 30)
+```
+
+You would only combine those two built-ins that way if they meant exactly "this
+unit cannot be hurt by combat" and "set this unit's HP to N %".
+
+#### ✅ Refutation attempts, and what they found
+
+Recorded because two of them turned into confirmations.
+
+* **"26 kills a unit the mission still needs."** Over all 28 stages there are
+  200 (stage, unit) pairs where a predicate on `u` follows a `26(u, 0)` in file
+  order. Every one inspected is a `unit_alive` / `unit_state` / `hp_pct_test`
+  **poll waiting for that death** — which is what a scripted kill implies, not a
+  contradiction. Not a counterexample, but the count is recorded rather than
+  hidden.
+* **"29 makes a unit invulnerable that the player is required to destroy."**
+  The nine `n001_TTRL_Box` targets in Stage 28 do get `29(box, 0)`. They are
+  then destroyed by **`26(box, 0)`** later in the same file — nine boxes, nine
+  pairs, invulnerability first (offsets 0x2E4C–0x48C8) and the scripted removal
+  second (0x50F8–0x5FA0). The tutorial target cannot be shot down; the script
+  removes it when the lesson ends. The counterexample became a confirmation.
+* **"28 is applied to something with no weapons."** Of the 35 craft classes it
+  touches, none is an unarmed prop — no asteroid, box, cargo or mine ever
+  receives 28, while 26 and 29 both do. The only near-miss is the four
+  `…_Inv` / background hulls at 0.1, i.e. deliberately harmless.
+* **"`+672`/`+676` have another consumer that contradicts damage."** Searched
+  every `lfs`/`stfs`/`addi`/`lfsx` reference to offsets 672 and 676 across the
+  whole `.text`, then filtered by base register. **No further entity-side reader
+  of either exists.** ⚠️ The search also produced the trap this file keeps
+  warning about: `sub_8238E0F0` writes `676(r3)` and `sub_82389558` reads
+  `672(r31)`, but in both `r3`/`r31` is a **projectile**, which has its own
+  fields at those offsets. Three of the five "extra readers" the raw offset
+  search returned were that mistake.
+* **What I could not refute and could not confirm**: that `+672` reaches every
+  weapon (see the ❔ above).
+
+#### ✅ Bonus: built-in 101 is `all_units_invulnerable`
+
+`sub_822691C8` is 29's **broadcast** twin — same descriptor `0x820A8D20`, same
+opcode 802 — but it takes **no operand**: the float it sends is the constant at
+`0x8209FD28`, which is **0.0**, and it loops over the phase's whole unit array
+posting `0xED0804DE` to each live entry.
+
+The usage confirms it. All **133** sites sit in one fixed phase-teardown idiom,
+with no exceptions:
+
+```
+builtin116(0)  ->  builtin101  ->  reset_phase_threads  ->  timer_stop  ->  clear_flag(-1)  ->  builtin118
+```
+
+133/133 preceded by 116 and 133/133 followed by 100. Freezing all damage is
+exactly the first step of tearing a phase down, and no other reading of "post
+0.0 to every unit" fits a teardown.
+
+#### ❌ Two corrections to this file's earlier entries
+
+* **The state guards were mis-stated.** Read directly: **26 rejects states 3 and
+  4**; **28 and 29 reject 1, 3 and 4**. This file said 26 rejects "only state 3"
+  and 28/29 "states 1 and 3". So 26 alone will still act on a state-1 unit.
+* **"28 is an absolute quantity, 26 and 29 are percentage-shaped"** was half
+  right for the wrong reason. All three are percentages of *something*; only 26
+  and 29 are percentages of a thing with a ceiling.
+
+#### 🗒️ The route that failed, kept
+
+The three commands' descriptors at `0x820A8D10` / `+8` / `+16` are **vtables**,
+not data: slot 0 of each is `0x82301C20` and slot 1 points into `0x8210E5xx`,
+below the disassembly DB's range. Chasing them still leads nowhere. The route
+that works is the one this file already recommended — the **interpreter command
+table** → `0x822FF118/120/128` → the three opcode handlers — and from there the
+**unit-message pump**, which is the part that was missing.
 
 ### ✅ Built-in 108 is `deploy_squadron_ex` — `deploy_squadron` plus a `1 << n` selector
 

docs/re/structures/regn-map-grid.md

@@ -1,8 +1,16 @@
-# `REGN` — a per-map spatial grid (and `MCOL` beside it)
+# `REGN` — a stage's tetrahedral navigation mesh (and `MCOL` beside it)
 
-**Status: ✅ `CONFIRMED` for the header**, which self-checks on all 11 objects on
+**Status: ✅ `CONFIRMED`.** A `REGN` object is a **tetrahedral navigation mesh
-the disc. ❔ the four data sections are undecoded. **New to this corpus** — no
+of the whole play volume** — vertices, tetrahedra, faces with full adjacency,
-document mentioned `REGN`, `MCOL` or `hidden/MiscBin.pak` before 2026-08-24.
+per-tetrahedron portal costs — plus a uniform grid for point location. The
+decode is complete except for two small fields; see
+[the 2026-08-26 section](#-2026-08-26--the-reader-found-regn-is-a-tetrahedral-navigation-mesh),
+which supersedes the offsets in the older sections below (they were read
+**16 bytes early** — the loader's fixup base is `chunk + 0x10`). The older
+sections are kept because their refutations are still instructive.
+
+**New to this corpus** — no document mentioned `REGN`, `MCOL` or
+`hidden/MiscBin.pak` before 2026-08-24.
 
 ## Where it is
 
@@ -131,23 +139,6 @@ thing is indexed *by*.
 partition and no more; the sections are unread. Treat this as the location of the
 world's spatial data, not as the wave table.
 
-> ❌ **SETTLED 2026-08-26 — `REGN` is not the wave scheduler, and cannot be.**
-> It is a **tetrahedral navigation mesh**: vertices, faces with plane equations
-> and adjacency, tetrahedra with portal costs between their face pairs, and a
-> grid that indexes which tetrahedra fall in each cell. Every section is
-> accounted for by that structure. There is nowhere in it for "what spawns, when,
-> on what trigger" to live — no time field, no unit reference, no trigger.
->
-> The hedge above was right to keep the reading provisional, but the reasoning
-> it hedged ("a grid is what a scheduler would be indexed by") was a **guess from
-> shape**, and the shape belonged to pathfinding. Worth noting because that guess
-> is what pointed this whole investigation at `REGN` in the first place.
->
-> The wave-scheduler search should now treat `REGN` as **excluded**, not as
-> unread. The arrival timetable already found in `Route_S<NN>.tbl` — keyframed
-> `(time, quat, pos)` per squadron per phase, with `t` in seconds — remains the
-> only located part of that mechanism.
-
 ## ✅ Update: `REGN` is a stage's **MapPath**
 
 The per-stage definition record (see
@@ -391,119 +382,338 @@ object in the executable and watch which fields it dereferences. That is static
 PE work (`/work/*.pe`, offset = VA − 0x82000000) of the same kind that cracked
 the `.slb` packing phase, and it is the honest next step rather than a
 twenty-first correlation.
+---
 
-## ⚠️ Open conflict with `auto/regn-reader` over the `+0x10` base
+# ✅ 2026-08-26 — the reader found: `REGN` is a **tetrahedral navigation mesh**
 
-**2026-08-26.** Branch `auto/regn-reader` decodes `REGN` as a **tetrahedral
+The previous section closed with "find what reads a `REGN` object in the
-navigation mesh** and reports the cell→geometry link solved, with strong checks
+executable and watch which fields it dereferences". That worked, and it did not
-(faces passing through 3 of 4 tet vertices, 253 722/253 722; portal cost equal to
+need the consumer: the **deserialiser** answers the question, because the file
-the distance between face centroids, 380 460/380 460). Its load-bearing structural
+carries its own pointer map and the deserialiser tells you how to read it.
-claim is that the `POF0` fixup base is **`chunk + 0x10`**, and therefore that
-"every offset previously recorded on that page was read 16 bytes early" — offered
-as the reason the ~20 correlation tests on this page returned chance.
 
-**I could not reproduce that as stated, on the one thing here that is
+## ✅ The reader — `sub_82465110` / `sub_82465138` / `sub_82465200`
-independently checkable.** Re-reading the plane list at both bases:
 
-| | records | unit normals |
+Three functions, all in the resource module around `0x82460000`:
-|---|---|---|
-| section at `chunk + offset` (what this page used) | 133 573 | **133 573 (100.00 %)** |
-| section at `chunk + 16 + offset` | 133 573 | **0 (0.00 %)** |
 
-And the plane identity `n·p + d = 0` holds to float round-off at the **unshifted**
+```
-base. A 16-byte shift destroys it completely. So for *this* record the unshifted
+sub_82465110   find_pof0(chunk)
-reading is right, and the blanket statement is not.
+  82465110  lwz  r11, 4(r3)        ; datasize
+  82465118  add  r11, r11, r3
+  82465120  addi r3,  r11, 16      ; -> chunk + 16 + datasize
+  82465124  lwz  r11, 0(r3)
+  82465114  lis  r10, 0x504F  /  8246511c  ori r10, r10, 0x4630   ; 'POF0'
+  82465128  cmplw cr6, r11, r10
+  8246512c  beqlr cr6                                ; else return 0
+```
 
-🟡 **The likely reconciliation is bookkeeping, not disagreement.** The other
+```
-branch describes a 48-byte **face** record whose plane fields sit at a different
+sub_82465138   relocate_chunk_chain(chunk)
-intra-record offset; `chunk+16` with the plane at `+0` addresses the same bytes as
+  82465164  lbz  r11, 8(r31)  /  clrlwi r11,r11,31   ; already-relocated bit
-`chunk+0` with the plane at `+16`, which is exactly what this page uses. If so
+  82465178  bl   0x82465110                          ; find the POF0 chunk
-both readings are correct and only the origin convention differs — but that is a
+  82465194  addi r4,  r11, 16                        ; POF0 payload
-guess, and I am not adopting either page's wording until it is checked.
+  82465198  lwz  r5,  4(r11)                         ; POF0 payload size
+  8246519c  addi r3,  r31, 16      ; ← THE FIXUP BASE = chunk + 0x10
+  824651a0  bl   0x82465200
+  824651a8  ori  r11, r11, 0x1  /  stb r11, 8(r31)   ; set the bit
+```
 
-**Also confirmed here, incidentally**: my section-0 point test passes at **100 %
+```
-at both bases**, so it never had the power to distinguish them. That test could
+sub_82465200   apply_pof0(base=r3, table=r4, size=r5)
-not have caught a 16-byte error and should not be cited as if it validated the
+  82465224  clrrwi r8, r10, 6      ; top two bits of the lead byte select
-offsets.
+  82465228  cmplwi cr6, r8, 0x40   ;   0x40 →  6-bit delta, 1 byte
+  82465230  cmplwi cr6, r8, 0x80   ;   0x80 → 14-bit delta, 2 bytes
+  82465238  cmplwi cr6, r8, 0xC0   ;   0xC0 → 22-bit delta, 3 bytes
+  82465258  add    r11, r10, r11   ; running WORD index, never reset
+  8246525c  slwi   r8,  r11, 2
+  82465260  lwzx   r10, r8, r3     ; slot = base[word]
+  82465264  cmplwi cr6, r10, 0x0
+  8246526c  add    r10, r10, r3    ; *slot += base   (skipped when *slot == 0)
+  82465270  stwx   r10, r8, r3
+```
 
-❔ Until the conflict is resolved, treat the plane/face layout on this page as
+Two things follow, and both are load-bearing:
-verified by its own arithmetic and the tetrahedral decode on `auto/regn-reader`
-as verified by its own — and do not merge the two offset conventions without
-re-running one check from each.
 
-## ✅ RESOLVED — the base IS `chunk + 0x10`, and my section-0 offsets were wrong
+1. **The fixup base is `chunk + 0x10`, not `chunk + 0`** (`82465198`:
+   `addi r3, r31, 16`). Every stored "offset" in a `REGN` file is relative to
+   file offset `0x10`, and every **record origin** on this page above is
+   therefore 16 bytes early.
+2. **The `POF0` table is an exact list of which words are pointers.** It is not
+   a heuristic — it is the data the retail loader itself walks. Decoding it
+   gives the pointer graph directly, with no guessing.
 
-**2026-08-26, same day.** The conflict above is settled, and it settles against
+### 🔴 A correction to how I first stated point 1
-me on the boundary while leaving the plane arithmetic intact.
 
-**The plane fields were never in dispute.** For object `3506e972`, the other
+The first version of this section said "everything on this page above was read
-branch's face record 0 begins at `0x1c700`, and its plane normal begins at the
+16 bytes early", which is **too broad and I withdraw it**. For the plane fields
-same address; my `chunk + offset_at_0x78 + 16` gives `0x1c700` too. **Same bytes,
+it is *false*: the older reading put the section at `chunk + offset` and the
-different bookkeeping** — exactly the reconciliation guessed above. The
+normal at intra-record `+16`, which addresses **exactly the same bytes** as
-`n·p + d = 0` result stands unchanged.
+`chunk + 0x10 + offset` with the normal at `+0`. Its unit-normal and
+`n·p + d = 0` results were measuring real planes and stand unchanged. On
+`3506e972`, both conventions put face record 0's normal at file offset
+**`0x1c700` (116 480)** = `0x10 + 0x1c6f0`, where the header word at `0x78` is
+`0x1c6f0`.
 
-**The base is `chunk + 0x10`**, on evidence that has power where my tests did
+What is genuinely wrong is the **record boundary**, and it matters for one
-not:
+reason: it decides which 48-byte record the four integer words belong to — and
+those integer words are the face adjacency, i.e. precisely the thing the
+correlation search was hunting for. It also mis-resolves every stored pointer
+by 16 bytes, twice over along the cell → item → ref → tetrahedron chain, which
+is the mechanical reason that chain never landed on anything.
 
-* the loader does it: `8246519c  addi r3, r31, 16`;
+### ✅ Which tests actually decide the origin — and which have no power
-* at `+0x10` the six `POF0`-relocated slots land exactly on `0x70`–`0x84`, the six
-  section pointers. At `+0` they would land on `0x60`–`0x74` — relocating the
-  `u16` **counts** and leaving two section pointers unrelocated. Not merely
-  wrong, non-functional;
-* section-0 record 0 reads as a bbox corner at `+0x10` and as garbage at `+0`.
 
-### ❌ And my point-list evidence was vacuous
+Most of the numbers on this page are **content** tests and address the same
+bytes under either convention, so they cannot settle the origin. Stated
+plainly, because the same trap caught the point-in-bbox test:
 
-I reported "13 467/13 467 section-0 points lie inside the bbox" as the check that
+| test | discriminates the base? |
-made section 0 a decode. Read at the correct base, record 0 of four objects is:
-
-    base +0    (1.4e-41, 5.3e-41, 0)      (2.2e-40, 2.7e-40, 0)
-    base +16   (-50000,-50000,-50000)     (-250000, 250000, -250000)
-
-So my offsets were 16 bytes early throughout. **Only 11 of 13 467 points read as
-denormal at the wrong base** — the rest were still plausible coordinates inside
-the box, because a 16-byte shift within a packed array of `f32` triples yields
-*other floats from the same array*. That is the general form of the failure and
-it is worth stating plainly:
-
-> **A containment test cannot detect a shift inside a homogeneous array.** The
-> shifted values are drawn from the same distribution as the correct ones, so the
-> test passes at 100 % either way. It is not a weak check — for this class of
-> error it is no check at all.
-
-The conclusion "section 0 is a point list" happens to be right. The evidence I
-gave for it was not evidence.
-
-✅ **Adopt `chunk + 0x10`.** The plane *fields* need no change; the record
-*boundary* moves, and the four integer words I described as "four zeros" move
-with it into the record they describe — which is where the face adjacency, and
-the answer to the cell→geometry question, was hiding. See branch
-`auto/regn-reader` for the tetrahedral decode.
-
-## ✅ Independent confirmation of the face decode
-
-**2026-08-26.** I re-derived the other branch's central check with my own code,
-my own reading of the record, and my own control — rather than accepting the
-number.
-
-Reading at base `chunk + 0x10`, taking the plane at intra-record `+0` and the
-**three `u16` vertex indices at `+32`**, and asking whether each named vertex
-satisfies its own face's plane equation:
-
-| | |
 |---|---|
-| faces where **all three** named vertices lie on the plane | **133 573 / 133 573 (100.00 %)** |
+| section-5 targets on 96-byte boundaries; ref-array packing | ❌ no — `target − start` cancels the base |
-| a **random** vertex lying on that plane (control) | 2 782 / 400 719 = **0.69 %** |
+| face passes through 3 of 4 vertices; portal-cost identity | ❌ no — same absolute bytes either way |
+| sphere reaches its cell (98.7 % vs 18–28 %) | ❌ no for the base; it discriminates the **axis order** |
+| points inside the bbox (the older section) | ❌ no — a denormal reads as ≈ 0, which is inside a ±250 km box |
+| **the loader's own `addi r3, r31, 16`** | ✅ direct |
+| **where `POF0` says the header pointers are** | ✅ at `+0x10` the six relocated slots are exactly `0x70`–`0x84`, the six section pointers. At `+0` they would be `0x60`–`0x74`: the loader would relocate the `u16` **counts** and would leave the pointers at `0x78`–`0x84` unrelocated. Not merely wrong — non-functional. |
+| **what section-0 record 0 contains** | ✅ at `+0x10` a real vertex (`-250000, 250000, -250000` on `d4c89536`); at `+0` the two remaining header pointer words read as floats — `2.2e-40, 2.7e-40, 0` |
+| **the section-2 record boundary** | ✅ see below, 100.000 % against 0.000 % |
 
-A 100 % against a 0.69 % baseline is not a fit — the face record genuinely names
+### ✅ The record boundary, settled
-the vertices of its own plane, and the `+0x10` base together with this layout is
-right.
 
-That also settles the record-boundary question from my side: the `u16`s that
+A tetrahedron names face `f`; the plane at record `f` is independently verified
-describe a plane sit **after** it in the same 48-byte record. My earlier reading
+(three of the tet's four vertices lie on it, 100 %). The question is whether the
-of "four zeros at the start of each record" was those integers seen 16 bytes out
+adjacency block that says *"I am face `f`, my tetrahedra are A and B, at their
-of position, one record late.
+face slots i and j"* sits in the **same** 48-byte record as that plane.
 
-This is worth having in the corpus independently of the other branch: two
+Requiring `own == f` **and** `tet[A].faces[i] == f`:
-different implementations, two different guesses at the intra-record layout, the
+
-same 100 %.
+    adjacency block taken from record f      (base + 0x10) : 100.000 %
+    adjacency block taken from record f + 1  (base + 0)    :   0.000 %
+
+11 of 11 objects, every face, both sides. The plane and the four integer words
+that describe it are one record, and that record starts at `chunk + 0x10 +
+offset + 48·f`.
+
+`sub_82465138` is reached from exactly two callers, `sub_82461018` (vtable slot
+9 of the class at `0x820af8bc`, the pak/resource file class) and
+`sub_82461DE8`; both store `chunk + 16` as the object's data pointer, which
+confirms the same `+0x10` base from the other side.
+
+### 🔴 …and the magic is never compared
+
+Worth recording because it is what sent the search to the fixup table:
+**`'REGN'` and `'MCOL'` are not constructed anywhere in the executable.** The
+title builds its four-character tags as `lis`/`ori` pairs, and a sweep of every
+such pair recovers 156 tags — `RATC`, `T8aD`, `XBG7`, `IPFB`, `IDXD`, `LSTA`,
+`POF0`, `PRMD`, `TBMD`, `WMV3` … — but neither of these. Nor does either half
+appear as an immediate anywhere: `0x474E` (`'GN'`) occurs **zero** times in
+1 865 751 instructions, and the flat PE image contains the byte string `REGN`
+**zero** times. So no magic-dispatch site exists to find; `.rgn` objects are
+handed to the map code by the stage record, not identified by their tag.
+
+## ✅ The header is 0x70 bytes at `chunk + 0x10`, with **six** sections
+
+Corrected, and re-derived from the `POF0` table, which relocates exactly six
+header words (`0x70`, `0x74`, `0x78`, `0x7c`, `0x80`, `0x84`) on 11 of 11:
+
+```
+chunk +0x00  char[4]  'REGN'
+      +0x04  u32      data size          (POF0 chunk at +0x04-value + 0x10)
+      +0x08  u8       flags; bit0 = "already relocated" (set by sub_82465138)
+data = chunk + 0x10:
+      +0x00  f32[4]   bbox min           (w = 1.0)
+      +0x10  f32[4]   bbox max
+      +0x20  f32[4]   extent
+      +0x30  f32[4]   cell size
+      +0x40  u32[4]   grid dims
+      +0x50  u16[6]   record counts, one per section
+      +0x60  ptr[6]   section pointers
+```
+
+The old page had four sections because it read the last two pointers as data.
+There are six, their strides are `12, 96, 48, 8, 32, 4`, and each section's
+span divided by its stride is its `counts[]` entry exactly — 11 of 11, with the
+only slack being 16-byte alignment padding and, for the face list, **two
+all-zero sentinel records** (which is the unexplained "constant 96-byte tail"
+from the section above: 2 × 48).
+
+| # | contents | stride | count |
+|---|---|---|---|
+| 0 | vertices | 12 | `counts[0]` |
+| 1 | **tetrahedra** | 96 | `counts[1]` |
+| 2 | **faces** (plane + adjacency) | 48 | `counts[2]` |
+| 3 | cell index, one per cell | 8 | `counts[3]` = cells |
+| 4 | cell items, one per **occupied** cell | 32 | `counts[4]` |
+| 5 | tetrahedron references | 4 | `counts[5]` |
+
+## ✅ How a cell reaches its geometry — the question, answered
+
+The `POF0` table places every pointer in the file, and there are only four
+kinds. Verified on all 11 objects by `tools/re-capture/regn_decode.py verify`:
+
+* the six header words, and nothing else in the header;
+* **one pointer per occupied cell**, at section-3 record offset **`+4`**
+  — so a cell is `{ u32 count; item* }` and the *count* word is not a pointer;
+* **exactly one pointer per section-4 record, at offset `+0x14`** — the 32-byte
+  cell item is `{ …, u32 n @+0x10, tetref* @+0x14, … }`;
+* **every word of section 5**, all `counts[5]` of them.
+
+So the chain is:
+
+```
+position ─▶ cell (x,y,z)  index = (z·dimY + y)·dimX + x
+         ─▶ sec3[index]              {count, item*}
+         ─▶ item                     {…, n @+0x10, refs* @+0x14, …}
+         ─▶ refs[0 .. n)             each a pointer into section 1
+         ─▶ tetrahedron
+```
+
+Four independent checks, all 11 of 11 objects:
+
+* **section-5 targets land on section-1 record boundaries** — every one of
+  **261 000** pointers is `sec1 + 96·k` with zero remainder;
+* **the reference arrays are packed contiguously in cell order** —
+  `item[i].refs == sec5 + 4·Σ item[j<i].n`, exact, and the total equals
+  `counts[5]`;
+* `counts[4]` equals the number of relocated section-3 pointers equals the
+  number of occupied cells;
+* **the cell ordering is x-fastest, then y, then z.** A tetrahedron's bounding
+  sphere reaches the box of a cell that lists it in **98.7 – 100 %** of all
+  261 000 references; transposing the axes — the natural control — drops that
+  to **18 – 28 %**.
+
+The list is a strict subset of "every cell the bounding sphere touches"
+(Jaccard ≈ 0.4 – 1.0), i.e. the build used a tighter test than sphere-vs-box.
+That is expected and is not claimed as decoded.
+
+## ✅ Section 1 is a **tetrahedron** — 96 bytes
+
+```
++0x00  f32[3]   bounding-sphere centre
++0x0c  f32      bounding-sphere radius
++0x10  u16[4]   vertex indices  → section 0
++0x18  u16[4]   face indices    → section 2
++0x20  6 × { f32 cost; f32 ❔ }   one pair per face pair, in the order
+                                 (0,1) (0,2) (0,3) (1,2) (1,3) (2,3)
++0x50  u32      the record's own index
++0x54  u8[4]    flags, values 0/1
+```
+
+**The check that makes this a decode, not a reading**: each of a tetrahedron's
+four faces must pass through exactly three of its four vertices. Over
+**253 722** (tetrahedron, face) pairs on the disc, the count of vertices lying
+on the plane is **3 in 100.00 % of cases**. The control — the same test with a
+randomly chosen face of the same object — gives 3 in **0.07 – 2.2 %**, and
+touches no vertex at all 96 % of the time.
+
+Two more, both 11 of 11: the bounding sphere encloses all four vertices in
+100 % of the 63 410 records (with ~0.1 % padding), and the word at `+0x50` is
+the record's own index in 100 %.
+
+### ✅ The six floats at `+0x20` are the portal-graph edge costs
+
+For face `i` of a tetrahedron, let `omit(i)` be the one vertex not on it. Then
+
+    cost[k]  ==  | V[omit(i)] − V[omit(j)] | / 3      for the k-th pair (i<j)
+
+which is exactly the **distance between the centroids of faces `i` and `j`** —
+the A\* step cost of crossing the tetrahedron from one portal to another. It
+holds to `1e-4` relative in **380 460 of 380 460** values, all 11 objects.
+
+❔ The second float of each pair is unread. It is a genuine varied float, zero
+in 8 – 26 % of slots. **🔴 Refuted**: "zero marks a hull edge" — `P(zero)` is
+the same for edges on the hull as for interior ones (e.g. 2.9 % / 16.4 %
+against 16.7 % / 64.0 % — no lift at all). A clearance width is the obvious
+reading and is *not* established.
+
+## ✅ Section 2 is a **face** — a plane plus the adjacency graph
+
+```
++0x00  f32[3]   unit normal
++0x0c  f32      d
++0x10  f32[3]   a point on the plane
++0x1c  f32      1.0
++0x20  u16[3]   the face's three vertex indices → section 0
++0x26  u16      the face's own index
++0x28  u16[2]   the tetrahedra on either side; 0xFFFF = hull (no neighbour)
++0x2c  u16[2]   which of that tetrahedron's four face slots this is
+```
+
+The old page's plane reading was the same 16 bytes early, which is why it
+reported "four zeros" at the front: those were the *previous* record's four
+integer words, read as floats.
+
+Verified over every face of every object (11 of 11, 100.00 % each):
+
+* the word at `+0x26` is the record's own index;
+* for each non-`0xFFFF` side, `tet[side].faces[slot[side]] == this face`;
+* the face's three vertices are a subset of that tetrahedron's four.
+
+And the Euler relation closes: `4·T == 2·(F − B) + B` exactly on every object
+(e.g. `4 × 1172 = 4688`, `F = 2584`, `B = 480` hull halves).
+
+## ✅ What a `REGN` object is
+
+A stage's `MapPath` is a **tetrahedral navigation mesh of the whole play
+volume**, plus a uniform grid for point location:
+
+* vertices, tetrahedra, and faces form a conforming tet mesh with full
+  face adjacency and hull markers;
+* each tetrahedron carries the six face-to-face traversal costs, so A\* over
+  the portal graph needs no geometry at query time;
+* the uniform grid answers "which tetrahedra could contain this point" in O(1),
+  which is what a flight game needs to localise a ship into the mesh each frame.
+
+The 100 km-cube smoke-test map (`e993b93e`, `counts = [8, 6, 18, …]`) is the
+textbook **six-tetrahedron decomposition of a cube** — 8 corners, 6 tets, 18
+distinct faces (24 faces less the 6 shared internally) — which is as strong a
+confirmation of the reading as the statistics are.
+
+## 🔴 Corrections to the sections above, kept rather than deleted
+
+Every one of these was a real observation; each fails for the same single
+reason, and that is worth having on the page.
+
+| earlier claim | status |
+|---|---|
+| "four section offsets at `0x70`" | 🔴 there are **six**, `0x70`–`0x84` |
+| "the first section offset is always `0x80`" | 🔴 the *value* is `0x80`; the section is at `0x90` — the base is `+0x10` |
+| "`counts[4]` = occupied cells **+ 2**, unexplained" | 🔴 artefact of the base error; `counts[4]` = occupied cells exactly |
+| "the constant 96-byte tail after the plane list" | ✅ explained: two all-zero sentinel face records |
+| "record `+0x1c` is a bounding-sphere radius (ratio 1.001 on one object, 0.13–0.27 on the rest)" | 🟡 **half right** — `+0x0c` *is* a bounding-sphere radius, of the *tetrahedron*; the 1.001 was a coincidence of that map, where every tet shares the cube's circumsphere |
+| "`(count, offset)` pairs point at leaf arrays of `count × 4` bytes" | 🟡 **right mechanism, wrong record** — it is the cell *item* at `+0x10`/`+0x14` pointing into section 5, not the cell index |
+| "slots 8–11 are integers (denormal as float)" | ✅ correct, and they are the four vertex + four face `u16` indices |
+| "section 2 records are 48 bytes, unit normal, `n·p + d = 0` in 133 573/133 573" | ✅ **stands** — the same bytes under either origin convention; only the record boundary moves, see the correction above |
+| "section 0 points are inside the bbox, 13 467/13 467" | ⚠️ true but **uninformative** — it passes at either origin, because a denormal reads as ≈ 0 and 0 is inside the box |
+| "slot 7 is a local scale, ~14× smaller than the inter-node distance" | ✅ correct as measured — it is a *tetrahedron's* bounding radius, which is exactly that small |
+| "the BVH reading is refuted, no node sphere contains another" | ✅ stands, and is now explained: these are sibling tetrahedra, not a tree |
+| "the cell payload holds section-1 indices" | ✅ stands — it holds a **pointer to an array of pointers**, and no index anywhere |
+| "the static-correlation avenue is exhausted" | ✅ stands for correlations; the file's own fixup table was never a correlation |
+
+## ❔ Still open
+
+* the second float of each portal pair at tetrahedron `+0x24`, `+0x2c`, … ;
+* the four flag bytes at tetrahedron `+0x54` (values 0/1);
+* the exact predicate the tools used to decide cell membership (tighter than
+  sphere-vs-box);
+* **the runtime consumer.** The deserialiser is found and proven; the code that
+  *queries* the grid is not. Searches that came up empty, so they are not
+  repeated: functions loading the header field groups off one base register
+  (only stack frames match); `vctsxs`/`vctuxs` float→int conversion (16
+  functions, only one outside the XDK ranges); and the magic-comparison route,
+  which cannot exist (above). The likely reason the field-offset search fails
+  is that a `float4`-aligned header is read with VMX loads, which carry no
+  useful displacement signature.
+
+## Tooling
+
+`tools/re-capture/regn_decode.py` — standalone, stdlib only.
+
+```
+regn_decode.py list   hidden/MiscBin.pak
+regn_decode.py dump   hidden/MiscBin.pak [name_hash]
+regn_decode.py verify hidden/MiscBin.pak     # every check quoted above
+```
+
+`verify` prints, per object: the `POF0` pointer-slot shape, the reference-array
+packing, the face/vertex incidence with its random control, the sphere/cell
+agreement with its transposed-axis control, and the portal-cost identity.

docs/re/structures/sound-pak-contents.md

@@ -149,3 +149,63 @@ into those five shapes.
 
 Two incidental facts fall out: **4 banks run at 44 100 Hz** where everything else
 is 48 000, and the `BGM_*` tracks are the stereo ones.
+
+## The 36 shared banks, decoded end-to-end (2026-08-28)
+
+The census above is arithmetic — durations from the `seek` table, no decoding.
+This section is the decode itself, for the 36 language-independent banks
+(32 `BGM_*` + 3 `JNGL_*` + `Static.slb`), because they were the ones no viewer
+had ever played: the library enumerator kept only names containing `VOICE` or
+`\Briefing\`, so every one of them was filtered out before it could be tried.
+
+**35 of 36 decode to plausible audio**, and the shapes agree with the census:
+the 32 `BGM_*` come out 75–555 s and **stereo**, matching "the `BGM_*` tracks
+are the stereo ones"; `JNGL_002` decodes to 33.89 s against the manifest's
+predicted 33.97 s.
+
+Two things the census could not have caught, both found by decoding:
+
+### `Static.slb`'s TOC entry over-declares its size
+
+The SFX bank sits at the **highest offset in the archive** and claims
+8 970 240 bytes — **616 768 past the end of `sound.p04`**. It is not our
+extraction: `sound.p04` is byte-for-byte the size the ISO's own directory record
+gives. A sweep of **every `.pak` on the disc** finds this one entry over-running
+and no other, so the last entry's `comp_size` is an allocation size rather than a
+stored size.
+
+`PakArchive::stored_bytes` therefore allows a short read **only** for the
+highest-offset entry. Any other overrun is still an error — that would be real
+damage, and clamping it would hide the damage behind a half-decoded asset. With
+the short read, `Static.slb` decodes to **514 s of mono**; before it, the SFX
+bank could not be read at all.
+
+### `JNGL_001.slb` does not decode — and that is a real gap, not a filter
+
+It is one of the headerless banks (no `RIFF`), so it was already outside the
+4 114-bank manifest above. Decoding it yields **0.01 s** — one frame, the
+signature this corpus already records for a wrong channel count. But the usual
+fixes do not apply:
+
+* it is not a channel-count error the `RIFF+49` rule can repair, because there is
+  no `RIFF` to read the count from;
+* its payload is **not a whole number of 2048-byte XMA1 packets** from any of the
+  four `DATA_OFFSET_CANDIDATES`, which a headerless XMA1 stream must be.
+
+So `JNGL_001` is probably not a plain headerless XMA1 stream at all. The other
+headerless root bank, `Static.slb`, decodes fine at 514 s, so the headerless path
+is not broken in general — this is one bank in 9 519. It is listed in the viewer
+and reports that it did not decode, rather than being hidden.
+
+⚠️ Note on the offsets: `to_xma_riffs` still *scans* for the headerless data
+offset, while [slb-data-offset.md](slb-data-offset.md) establishes the exact rule
+(the cumulative `.pNN` segment start mod 2048, 8 783/8 783). Wiring the exact
+rule into the decoder is open, and is the first thing to try on `JNGL_001`.
+
+### Downmix is a per-category decision, not a constant
+
+The decoder took the left channel unconditionally. That is right for **voice**,
+whose content is mono however it is stored (some clips put the signal in the left
+channel alone, others duplicate L=R) — and wrong for **music**, where the two
+channels are a real stereo mix and taking one throws half of it away. The caller
+now decides from the bank's category.

tools/re-capture/idxd_unnamed_keys.py

@@ -0,0 +1,536 @@
+#!/usr/bin/env python3
+r"""Census -- and preimage attack -- for IDXD field keys that carry no name.
+
+Pure static work: reads the extracted disc, runs no emulator.
+
+    python3 tools/re-capture/idxd_unnamed_keys.py census   > docs/re/data/idxd-unnamed-field-keys.txt
+    python3 tools/re-capture/idxd_unnamed_keys.py crack          # corpus + brute-force attack
+    python3 tools/re-capture/idxd_unnamed_keys.py idtbl           # dump the 42 hash-shaped keys in context
+
+An IDXD field entry is `(key, name_off, value_off)`. When `name_off` is
+0xFFFFFFFF the field has no name in the pool, and the reader must know what the
+`key` means from somewhere else. This tool answers "how many such keys are
+there, what do they look like, and can the names be recovered from the hash?"
+
+The headline measurement (see docs/re/structures/idxd-unnamed-keys.md):
+
+    2 757 039 field entries in 7 750 IDXD objects
+    1 271 462 named, 1 485 577 unnamed
+        7 094 distinct keys that are never named ANYWHERE on the disc
+        7 052 of them are < 0x10000  -- author-assigned ordinals / element ids
+           42 of them are >= 0x01000000 -- genuine tag_hash values
+
+`SYLPHEED_DISC` (default /work/sylph_extract) points at the extracted disc.
+"""
+import argparse, collections, glob, os, re, struct, sys, zlib
+
+DISC = os.environ.get('SYLPHEED_DISC', '/work/sylph_extract')
+
+# --------------------------------------------------------------------------- hashes
+
+TAG_MODULUS = 0x00FFFFDF          # 2^24 - 33, prime
+TAG_MAGIC = 0x2101                # floor(2^56/M)+1, the guest's divide magic
+
+
+def tag_hash(s):
+    """IDXD record key / field tag -- `sub_82447DF0`.
+
+    Transcribed in docs/re/structures/idxd-tag-hash.md and implemented three
+    times in this tree (here, tools/re-capture/unitgroup.py, and
+    sylpheed_formats::hash::tag_hash). Case-SENSITIVE, bytes sign-extended.
+    """
+    a = b = 0
+    for byte in s.encode('latin-1', 'replace'):
+        c = (byte - 256) if byte > 127 else byte           # extsb
+        a = ((a << 8) & 0xFFFFFFFF)
+        a = (a + c) & 0xFFFFFFFF
+        b = (b + c) & 0xFFFFFFFF
+        hi = ((a * TAG_MAGIC) >> 32) & 0xFFFFFFFF          # mulhwu
+        q = ((hi + (((a - hi) & 0xFFFFFFFF) >> 1)) & 0xFFFFFFFF) >> 23
+        a = (a - q * TAG_MODULUS) & 0xFFFFFFFF
+    return (((b << 24) & 0xFF000000) | (a & 0x00FFFFFF)) & 0xFFFFFFFF
+
+
+NAME_MODULUS, NAME_RECIP = 0x00FFF9D7, 0x80031493
+
+
+def _rotl(v, n):
+    return ((v << n) | (v >> (32 - n))) & 0xFFFFFFFF
+
+
+def name_hash(s):
+    """IPFB TOC path hash -- lowercased, a different modulus. `sub_82455C78`."""
+    bs = bytearray(s.encode('latin-1', 'replace'))
+    for i, x in enumerate(bs):
+        if 65 <= x <= 90:
+            bs[i] = x + 0x20
+    a = b = 0
+    for byte in bs:
+        c = ((byte - 256) if byte > 127 else byte) & 0xFFFFFFFF
+        a = ((_rotl(a, 8) & 0xFFFFFF00) + c) & 0xFFFFFFFF
+        b = (b + c) & 0xFFFFFFFF
+        q = _rotl(((a * NAME_RECIP) >> 32) & 0xFFFFFFFF, 9) & 0x1FF
+        a = (a - (q * NAME_MODULUS)) & 0xFFFFFFFF
+    return (((b << 24) & 0xFF000000) | (a & 0x00FFFFFF)) & 0xFFFFFFFF
+
+
+# --------------------------------------------------------------------------- pak / IDXD
+
+def pak_entries(pak):
+    """yield (toc_key, payload) for every entry of an IPFB pak + its .pNN segments."""
+    idx = open(pak, 'rb').read()
+    data = b''.join(open(p, 'rb').read()
+                    for p in sorted(glob.glob(pak[:-4] + '.p[0-9][0-9]')))
+    for i in range(struct.unpack_from('>I', idx, 4)[0]):
+        k, off, csize = struct.unpack_from('>III', idx, 16 + i * 12)
+        s = data[off:off + csize]
+        if s[:2] == b'Z1':
+            try:
+                s = zlib.decompress(s[10:])
+            except zlib.error:
+                continue
+        yield k, s
+
+
+def parse_idxd(b):
+    """-> [(record_key, record_name, [(tag, name|None, value, field_index)])]"""
+    u = lambda o: struct.unpack_from('>I', b, o)[0]
+    nrec = u(0x04)
+    npool_off = 0x08 + nrec * 16
+    npool = u(npool_off)
+    pool = npool_off + 4
+    strsize_off = pool + npool * 12
+    STR = strsize_off + 4
+    strsize = u(strsize_off)
+    if STR + strsize != len(b):
+        raise ValueError('string-pool trailer mismatch')
+
+    def s(o):
+        if o >= strsize:
+            raise ValueError('string offset out of pool')
+        return b[STR + o:b.index(b'\x00', STR + o)].decode('latin-1')
+
+    out = []
+    for i in range(nrec):
+        key, nm, lo, hi = (u(0x08 + i * 16 + j * 4) for j in range(4))
+        fields = []
+        for j in range(lo, hi):
+            o = pool + j * 12
+            tag, noff, voff = u(o), u(o + 4), u(o + 8)
+            fields.append((tag, s(noff) if noff != 0xFFFFFFFF else None, s(voff), j - lo))
+        out.append((key, s(nm), fields))
+    return out
+
+
+def all_paks():
+    return sorted(glob.glob(DISC + '/dat/*.pak') + glob.glob(DISC + '/hidden/*.pak'))
+
+
+def walk(counter=None):
+    """yield (pak_basename, obj_toc_key, record_key, record_name, fields)."""
+    for pak in all_paks():
+        base = os.path.basename(pak)
+        for h, payload in pak_entries(pak):
+            if payload[:4] != b'IDXD':
+                continue
+            try:
+                recs = parse_idxd(payload)
+            except Exception as exc:                     # noqa: BLE001
+                print('PARSE FAIL %s %08x %s' % (base, h, exc), file=sys.stderr)
+                continue
+            if counter is not None:
+                counter['objects'] += 1
+            schema = recs[0][1] if recs else ''
+            for key, rname, fields in recs:
+                yield base, h, schema, key, rname, fields
+
+
+# --------------------------------------------------------------------------- value profile
+
+_FLOAT = re.compile(r'^-?(\d+\.\d*|\.\d+|\d+)([eE][-+]?\d+)?$')
+_INT = re.compile(r'^-?\d+$')
+_HEX = re.compile(r'^(0[xX])?[0-9a-fA-F]+$')
+_FILE = re.compile(r'^[\w\\/. -]+\.[A-Za-z0-9]{2,4}$')
+
+
+def classify(values):
+    """A coarse type label for a bag of field values."""
+    if not values:
+        return 'empty'
+    kinds = set()
+    for v in values:
+        if v == '':
+            kinds.add('empty')
+        elif _INT.match(v):
+            kinds.add('int')
+        elif _FLOAT.match(v):
+            kinds.add('float')
+        elif _FILE.match(v):
+            kinds.add('file')
+        elif v in ('True', 'False', 'Yes', 'No', 'ON', 'OFF'):
+            kinds.add('bool')
+        elif _HEX.match(v) and len(v) >= 6:
+            kinds.add('hex')
+        else:
+            kinds.add('id')
+    order = ['file', 'id', 'hex', 'bool', 'float', 'int', 'empty']
+    return '+'.join(k for k in order if k in kinds)
+
+
+# --------------------------------------------------------------------------- census
+
+def census():
+    named = collections.defaultdict(collections.Counter)
+    unnamed = collections.Counter()
+    key_objs = collections.defaultdict(set)
+    key_recs = collections.defaultdict(collections.Counter)
+    key_idx = collections.defaultdict(lambda: [1 << 30, -1])
+    key_vals = collections.defaultdict(list)
+    key_nval = collections.Counter()
+    # per (object-schema, record-name) family, for the ordinal population
+    fam = collections.defaultdict(lambda: {'keys': set(), 'n': 0, 'vals': [], 'recs': 0})
+    tot = collections.Counter()
+    schema_of = {}
+
+    for base, h, schema, rkey, rname, fields in walk(tot):
+        tot['records'] += 1
+        # the object's schema hash is the key of its first record; use record name
+        fam_id = None
+        for tag, name, val, fidx in fields:
+            tot['fields'] += 1
+            if name is not None:
+                tot['named'] += 1
+                named[tag][name] += 1
+            else:
+                tot['unnamed'] += 1
+                unnamed[tag] += 1
+                key_objs[tag].add((base, h))
+                key_recs[tag][rname] += 1
+                lohi = key_idx[tag]
+                lohi[0] = min(lohi[0], fidx)
+                lohi[1] = max(lohi[1], fidx)
+                key_nval[tag] += 1
+                if len(key_vals[tag]) < 40:
+                    key_vals[tag].append(val)
+                if fam_id is None:
+                    fam_id = (base, schema)
+                f = fam[fam_id]
+                f['keys'].add(tag)
+                f['n'] += 1
+                if len(f['vals']) < 60:
+                    f['vals'].append(val)
+        if fam_id is not None:
+            fam[fam_id]['recs'] += 1
+
+    return dict(named=named, unnamed=unnamed, key_objs=key_objs, key_recs=key_recs,
+                key_idx=key_idx, key_vals=key_vals, key_nval=key_nval, fam=fam, tot=tot)
+
+
+def report(c, out=sys.stdout):
+    named, unnamed = c['named'], c['unnamed']
+    never = sorted(set(unnamed) - set(named))
+    hashy = [k for k in never if k >= 0x01000000]
+    ordinal = [k for k in never if k < 0x01000000]
+    both = sorted(set(unnamed) & set(named))
+    w = out.write
+
+    w('# IDXD field keys that carry no name\n')
+    w('#\n')
+    w('# Generated by tools/re-capture/idxd_unnamed_keys.py census\n')
+    w('# Disc: %s   (all dat/*.pak + hidden/*.pak, .pNN segments joined, Z1 inflated)\n' % DISC)
+    w('# Companion write-up: docs/re/structures/idxd-unnamed-keys.md\n')
+    w('#\n')
+    w('# A field entry is (key, name_off, value_off). name_off == 0xFFFFFFFF means the\n')
+    w('# pool holds no name for it, so the reader must already know what `key` means.\n')
+    w('\n')
+    w('== TOTALS ==\n')
+    w('IDXD objects walked                          : %d\n' % c['tot']['objects'])
+    w('IDXD records walked                          : %d\n' % c['tot']['records'])
+    w('field entries                                : %d\n' % c['tot']['fields'])
+    w('  named   (name_off != 0xFFFFFFFF)           : %d\n' % c['tot']['named'])
+    w('  unnamed (name_off == 0xFFFFFFFF)           : %d\n' % c['tot']['unnamed'])
+    w('distinct keys seen named somewhere           : %d\n' % len(named))
+    w('distinct keys seen unnamed somewhere         : %d\n' % len(unnamed))
+    w('distinct keys NEVER named anywhere on disc   : %d\n' % len(never))
+    w('  of those, < 0x00010000  (ordinal-shaped)   : %d\n' % len([k for k in never if k < 0x10000]))
+    w('  of those, in [0x10000, 0x1000000)          : %d\n' % len([k for k in never if 0x10000 <= k < 0x1000000]))
+    w('  of those, >= 0x01000000 (hash-shaped)      : %d\n' % len(hashy))
+    w('keys that are named in one place and unnamed in another: %d  %s\n'
+      % (len(both), ['%08x' % k for k in both]))
+    w('unnamed FIELD ENTRIES whose key is hash-shaped : %d\n'
+      % sum(c['key_nval'][k] for k in hashy))
+    w('unnamed FIELD ENTRIES whose key is an ordinal  : %d\n'
+      % sum(c['key_nval'][k] for k in ordinal))
+    w('unnamed FIELD ENTRIES with key 0x00000000      : %d  (ordinal 0; the key is\n'
+      % sum(c['key_nval'][k] for k in both))
+    w('#   "named" elsewhere only because tag_hash("") == 0, so it is counted apart)\n')
+    w('# The first of those two is the "504 hash-keyed fields disc-wide" already in\n')
+    w('# INDEX.md. It is 504 ENTRIES, not 504 distinct keys: %d keys x 6 language\n' % len(hashy))
+    w('# copies of the same object x 2 records (FILE and OFFSET) = %d.\n'
+      % sum(c['key_nval'][k] for k in hashy))
+    w('\n')
+    w('# Why the split at 0x01000000 is not arbitrary: a tag_hash puts the byte-sum\n')
+    w('# checksum in the top byte, so a hash lands below 0x01000000 only when the name\n')
+    w('# byte-sum is 0 mod 256 (1/256 of names) AND its low 24 bits are also tiny. Of\n')
+    zerotop = sorted(k for k in named if (k >> 24) == 0 and k != 0)
+    w('# the %d keys that DO carry a name, %d have a zero top byte, and the smallest of\n'
+      % (len(named), len(zerotop)))
+    w('# those is 0x%06x -- far above the ordinal band, which tops out at 0x%x.\n'
+      % (zerotop[0], max(ordinal)))
+    w('\n')
+
+    w('== PART 1: the %d HASH-SHAPED never-named keys ==\n' % len(hashy))
+    w('# key       n   objects  record        field  value\n')
+    for k in hashy:
+        recs = ','.join(sorted(c['key_recs'][k]))
+        lo, hi = c['key_idx'][k]
+        vals = sorted(set(c['key_vals'][k]))
+        w('%08x  %3d  %2d       %-13s %2d-%-2d  %s\n'
+          % (k, c['key_nval'][k], len(c['key_objs'][k]), recs, lo, hi, '|'.join(vals)))
+    w('\n')
+    w('# All %d live in the six copies of <lang>\\script\\ID.tbl inside\n' % len(hashy))
+    w('# dat/GP_READY_ROOM.pak (eng jpn fra deu ita esp). Each copy has two records,\n')
+    w('# FILE and OFFSET, with the SAME 42 keys in the same order -- i.e. the object is\n')
+    w('# a column store: key -> (which .isb file, what offset inside it).\n')
+    w('\n')
+
+    w('== PART 2: the ordinal population, by (pak, object schema) ==\n')
+    w('# The schema is the name of the object\'s FIRST record -- the string whose\n')
+    w('# tag_hash is the object header word. `recs` counts records with >=1 unnamed field.\n')
+    w('# pak                          schema            recs  fields  keys  keymin-keymax  valuetype  sample\n')
+    rows = []
+    for (base, rname), f in c['fam'].items():
+        ks = f['keys']
+        rows.append((base, rname, f['recs'], f['n'], len(ks), min(ks), max(ks),
+                     classify(f['vals']), f['vals'][0] if f['vals'] else ''))
+    for r in sorted(rows, key=lambda r: (-r[3], r[0], r[1])):
+        w('%-28s %-17s %5d %7d %5d  %6x-%-6x  %-10s %s\n'
+          % (r[0], r[1], r[2], r[3], r[4], r[5], r[6], r[7], r[8][:40]))
+    w('\n')
+
+    w('== PART 3: every never-named ordinal key ==\n')
+    w('# key       occurrences  distinct-records  fieldidx-lo-hi  valuetype  sample-value\n')
+    for k in ordinal:
+        lo, hi = c['key_idx'][k]
+        w('%08x  %8d  %6d  %4d-%-4d  %-10s %s\n'
+          % (k, c['key_nval'][k], len(c['key_recs'][k]), lo, hi,
+             classify(c['key_vals'][k]), (c['key_vals'][k] or [''])[0][:40]))
+    w('\n')
+    w('== PART 4: the ID.tbl script-symbol call graph ==\n')
+    try:
+        idtbl(out)
+    except Exception as exc:                                # noqa: BLE001
+        w('# unavailable: %s\n' % exc)
+
+
+# --------------------------------------------------------------------------- ID.tbl
+
+READY_ROOM = DISC + '/dat/GP_READY_ROOM.pak'
+LANGS = ('eng', 'jpn', 'fra', 'deu', 'ita', 'esp')
+
+
+_RR_CACHE = {}
+
+
+def readyroom_file(path):
+    """Read one file out of GP_READY_ROOM.pak by its (lowercased) path."""
+    if not _RR_CACHE:
+        _RR_CACHE.update(dict(pak_entries(READY_ROOM)))
+    return _RR_CACHE.get(name_hash(path))
+
+
+def idtbl(out=sys.stdout):
+    """The 42 keys with their FILE/OFFSET columns, plus the .isb cross-check."""
+    payload = readyroom_file('eng\\script\\ID.tbl')
+    recs = {r[1]: r[2] for r in parse_idxd(payload)}
+    files = recs['FILE']
+    offs = recs['OFFSET']
+    out.write("# eng\\script\\ID.tbl -- key -> (defining .isb file, offset), plus every\n")
+    out.write('# .isb whose bytecode contains the key as a little-endian word (= a call site).\n')
+    out.write('# idx key       defined-in                offset  referenced-from\n')
+    isb = {}
+    for name in sorted({v for _, _, v, _ in files}):
+        b = readyroom_file('eng\\script\\' + name)
+        if b:
+            isb[name] = {struct.unpack_from('<I', b, o)[0] for o in range(0, len(b) - 3)}
+    for i, (tag, _n, val, _f) in enumerate(files):
+        seen = sorted(f for f, s in isb.items() if tag in s)
+        out.write('%3d %08x  %-24s %-6s  %s\n'
+                  % (i, tag, val, offs[i][2], ','.join(seen) or '-'))
+
+
+# --------------------------------------------------------------------------- attacks
+
+def _poly(s):
+    a = 0
+    for ch in s.encode('latin-1', 'replace'):
+        a = (a * 256 + ch) % TAG_MODULUS
+    return a
+
+
+def corpus_attack(targets, words):
+    """Straight dictionary attack. Returns {tag: [names]} and the corpus size."""
+    hits = collections.defaultdict(list)
+    n = 0
+    for w in words:
+        n += 1
+        h = tag_hash(w)
+        if h in targets:
+            hits[h].append(w)
+    return hits, n
+
+
+def compose_attack(targets, tokens, suffixes=('',), seps=('', '_', '-')):
+    """Two-token composition attack: name = t1 + sep + t2 + suffix.
+
+    Returns (hits, effective search space). The space is what matters: with a
+    32-bit tag, expected FALSE hits per target is space / 2**32.
+    """
+    right = collections.defaultdict(list)
+    for t in tokens:
+        for sep in seps:
+            for suf in suffixes:
+                r = sep + t + suf
+                right[(len(r), _poly(r))].append(r)
+    lens = sorted({k[0] for k in right})
+    p256 = {l: pow(256, l, TAG_MODULUS) for l in lens}
+    hits = collections.defaultdict(list)
+    for left in tokens:
+        pl = _poly(left)
+        for l in lens:
+            for tag in targets:
+                want = ((tag & 0xFFFFFF) - pl * p256[l]) % TAG_MODULUS
+                for r in right.get((l, want), ()):
+                    cand = left + r
+                    if tag_hash(cand) == tag:
+                        hits[tag].append(cand)
+    space = len(tokens) * sum(len(v) for v in right.values())
+    return hits, space
+
+
+def brute_force(target, suffix='', maxlen=6, alphabet=None):
+    """Meet-in-the-middle preimage search: all P over `alphabet` with
+    tag_hash(P + suffix) == target and len(P) <= maxlen.
+
+    Needs numpy. The honest limit is maxlen 6: the expected number of FALSE
+    preimages is |alphabet|**maxlen / 2**32, which is ~15 at 63**6 and ~58 000
+    at 63**8, so anything past 6 returns noise, not names.
+    """
+    import numpy as np
+    if alphabet is None:
+        alphabet = ([chr(c) for c in range(48, 58)] + [chr(c) for c in range(65, 91)]
+                    + [chr(c) for c in range(97, 123)] + ['_'])
+    A = len(alphabet)
+    codes = np.array([ord(c) for c in alphabet], dtype=np.int64)
+    tabs = []
+    polys = np.zeros(1, dtype=np.int64)
+    sums = np.zeros(1, dtype=np.int64)
+    tabs.append((polys, sums))
+    for _ in range(maxlen // 2 + maxlen % 2):
+        polys = ((polys[:, None] * 256 + codes[None, :]) % TAG_MODULUS).ravel()
+        sums = (sums[:, None] + codes[None, :]).ravel()
+        tabs.append((polys, sums))
+
+    def decode(idx, k):
+        s = ''
+        for _ in range(k):
+            s = alphabet[idx % A] + s
+            idx //= A
+        return s
+
+    ps = _poly(suffix)
+    inv = pow(pow(256, len(suffix), TAG_MODULUS), -1, TAG_MODULUS)
+    need_sum = ((target >> 24) - sum(suffix.encode('latin-1'))) & 0xFF
+    out = []
+    for L in range(maxlen + 1):
+        v = L // 2
+        u = L - v
+        if u >= len(tabs) or v >= len(tabs):
+            continue
+        pu, su = tabs[u]
+        pv, sv = tabs[v]
+        order = np.argsort(pv, kind='stable')
+        pv_s = pv[order]
+        need = (((target & 0xFFFFFF) - ps) * inv) % TAG_MODULUS
+        want = (need - (pu * pow(256, v, TAG_MODULUS)) % TAG_MODULUS) % TAG_MODULUS
+        lo = np.searchsorted(pv_s, want, side='left')
+        hi = np.searchsorted(pv_s, want, side='right')
+        for i in np.nonzero(hi > lo)[0]:
+            for j in range(lo[i], hi[i]):
+                vi = order[j]
+                if ((su[i] + sv[vi]) & 0xFF) != need_sum:
+                    continue
+                cand = decode(int(i), u) + decode(int(vi), v) + suffix
+                if tag_hash(cand) == target:
+                    out.append(cand)
+    return out
+
+
+# --------------------------------------------------------------------------- main
+
+def main():
+    ap = argparse.ArgumentParser(description=__doc__,
+                                 formatter_class=argparse.RawDescriptionHelpFormatter)
+    ap.add_argument('mode', choices=('census', 'idtbl', 'crack', 'selftest'))
+    ap.add_argument('--maxlen', type=int, default=6)
+    ap.add_argument('--pe', default=os.environ.get('SYLPHEED_PE'),
+                    help='flat VA dump of default.xex; its strings widen the corpus')
+    args = ap.parse_args()
+
+    if args.mode == 'census':
+        report(census())
+    elif args.mode == 'idtbl':
+        idtbl()
+    elif args.mode == 'selftest':
+        # tag_hash must reproduce the key of every NAMED field on the disc.
+        ok = bad = 0
+        for _b, _h, _sc, _rk, _rn, fields in walk():
+            for tag, name, _v, _i in fields:
+                if name is None:
+                    continue
+                if tag_hash(name) == tag:
+                    ok += 1
+                else:
+                    bad += 1
+                    if bad < 5:
+                        print('MISMATCH %r %08x != %08x' % (name, tag, tag_hash(name)))
+        print('tag_hash reproduces %d / %d named field keys (%d wrong)' % (ok, ok + bad, bad))
+    else:
+        c = census()
+        targets = {k for k in set(c['unnamed']) - set(c['named']) if k >= 0x01000000}
+        print('targets: %d hash-shaped never-named keys' % len(targets))
+        words = set()
+        for b, h, _sc, _rk, rname, fields in walk():
+            words.add(rname)
+            for _t, name, val, _i in fields:
+                if name:
+                    words.add(name)
+                words.add(val)
+        if args.pe and os.path.exists(args.pe):
+            blob = open(args.pe, 'rb').read()
+            words |= {m.decode('latin-1') for m in re.findall(rb'[ -~]{3,}', blob)}
+        hits, n = corpus_attack(targets, words)
+        print('disc-string corpus : %d strings, %d hits, E[false]=%.4f'
+              % (n, len(hits), n * len(targets) / 2 ** 32))
+        for t, v in hits.items():
+            print('   %08x %s' % (t, v[:6]))
+        toks = collections.Counter()
+        for w in words:
+            for part in re.split(r'[^A-Za-z0-9]+', w):
+                for p in re.findall(r'[A-Z]+(?![a-z])|[A-Z][a-z]+|[a-z]+', part):
+                    if 2 <= len(p) <= 14:
+                        toks[p] += 1
+        tokens = [t for t, _ in toks.most_common()]
+        hits, space = compose_attack(targets, tokens)
+        print('2-token composition: space=%d, %d hits, E[false]=%.3f'
+              % (space, len(hits), space * len(targets) / 2 ** 32))
+        for t, v in hits.items():
+            print('   %08x %s' % (t, v[:6]))
+        for t in sorted(targets)[:3]:
+            r = brute_force(t, '', args.maxlen)
+            print('brute force <=%d chars %08x: %d candidates %s'
+                  % (args.maxlen, t, len(r), r[:6]))
+
+
+if __name__ == '__main__':
+    main()

tools/re-capture/isl.py

@@ -92,7 +92,11 @@ BUILTIN = {
     13: 'play_se', 14: 'play_bgm',
     15: 'set_group_speed',
     17: 'wait_frames', 18: 'dist_lt', 20: 'hp_pct_test', 24: 'squad_survival_pct',
-    26: 'damage_unit', 30: 'objective_marker', 31: 'objective_marker_at_route',
+    26: 'set_unit_hp_pct',
+    # 28's field and default (1.0) are certain; the LABEL rests on a single
+    # consumer, so it is PROBABLE, not confirmed. See isl-builtins.md.
+    28: 'set_unit_damage_dealt_pct', 29: 'set_unit_damage_taken_pct',
+    30: 'objective_marker', 31: 'objective_marker_at_route',
     33: 'global_counter0', 34: 'global_counter1', 36: 'screen_fade',
     39: 'MARK_LAST_PHASE', 40: 'mark_not_last', 43: 'play_voice',
     45: 'play_voice_vol', 46: 'squadron_trace', 47: 'squadron_attack',
@@ -109,8 +113,13 @@ BUILTIN = {
     77: 'banner_mission_start', 78: 'banner_mission_complete',
     81: 'banner_objective_update', 82: 'banner_mission_failed',
     135: 'banner_mission_restart',
+    # 93 is `stopwatch_stop`, not the older `clear_flag`: 8/9/93 were renamed to
+    # stopwatch_start/_elapsed/_stop once the reading landed (isl-timers.md says
+    # of the old trio "the names predate the reading"). The branch that still
+    # called it `clear_flag` simply forked before that rename.
     93: 'stopwatch_stop', 94: 'is_engaged', 95: 'unit_hp_pct', 100: 'reset_phase_threads',
-    102: 'prompt_yes_no', 104: 'request_next', 108: 'deploy_squadron_ex',
+    101: 'all_units_invulnerable', 102: 'prompt_yes_no', 104: 'request_next',
+    108: 'deploy_squadron_ex',
     109: 'set_unit_flags', 115: 'named_event',
     120: 'wait_cmds_drained', 123: 'timer_resume', 124: 'timer_stop',
     125: 'timer_reset', 126: 'timer_elapsed', 127: 'timer_set',

tools/re-capture/isl_builtin_sites.py

@@ -0,0 +1,171 @@
+#!/usr/bin/env python3
+"""Every call site of one or more ISL built-ins, across all `StageNN.ssb`.
+
+Pure static work — reads the extracted scripts, runs no emulator.
+
+    python3 tools/re-capture/isl_builtin_sites.py 26,28,29 --ssb <dir>
+    python3 tools/re-capture/isl_builtin_sites.py 101 --ctx 3 --ssb <dir>
+    python3 tools/re-capture/isl_builtin_sites.py 28 --craft <unitgroup-dump>
+
+Why this exists rather than `isl.py --calls`: naming a built-in needs the
+OPERANDS and the NEIGHBOURS, not just a histogram of ids. `isl.py --calls`
+scans on the encoding and so cannot see the `local[]` staging that carries a
+call's arguments, and `isl.py dis` has to be re-synchronised by hand for each
+site.
+
+The walk here is a straight linear decode of the whole code region, from the
+header's code offset (`+0x08`) to the symbol-table-1 offset (`+0x0C`, which is
+where the code ends). That is safe: **measured on all 28 stages, the linear walk
+lands on every call site the independent encoding scan finds** (Stage02:
+2846/2846), so no call is skipped and no false instruction boundary is invented.
+
+Columns are tab-separated:
+
+    stage  offset  builtin  slot8  slot4-name  slot4-raw  symtype  before  after
+
+`slot4` is the unit operand (a symbol-table-2 index; see isl.py for why the unit
+sits at slot 4 and slot 0 is a tag word) and `slot8` is the second operand,
+which is a bare double for the built-ins this was written for. `before`/`after`
+are the ids of the neighbouring calls, which is what makes a fixed idiom —
+`116 -> 101 -> 100 -> 124 -> 93` — visible.
+
+With `--craft <file>` (the output of `unitgroup.py --all`) it also cross-tabs
+value against the squadron's craft type, which is the test that separated
+built-in 15's classes and separates these three.
+"""
+import argparse
+import collections
+import glob
+import os
+import re
+import struct
+import sys
+
+sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))
+import isl                                                   # noqa: E402
+
+
+def walk(b):
+    """Yield `(offset, builtin_id, staged)` for every call in the code region.
+
+    `staged` is the `local[]` slot -> value map as it stood when the call
+    executed, i.e. the call's arguments. Both staging forms matter:
+    `local[i] = special[0]` after an immediate, and the far commoner
+    `local[i] = immediate` written straight in.
+    """
+    code_base = struct.unpack_from('>I', b, 0x08)[0]
+    code_end = struct.unpack_from('>I', b, 0x0C)[0]
+    off, staged, pending = code_base, {}, None
+    while off + 4 <= code_end:
+        w = struct.unpack_from('>I', b, off)[0]
+        op, ln = w & 0xFF, (w >> 8) & 0xFF
+        k1, k0 = (w >> 24) & 0xFF, (w >> 16) & 0xFF
+        if ln == 0 or ln % 4:
+            break
+        words = [struct.unpack_from('>I', b, off + i)[0]
+                 for i in range(4, max(ln, 4), 4) if off + i + 4 <= len(b)]
+        if op in (0, 1) and len(words) >= 2:
+            if k0 == 2 and k1 == 1:
+                pending = _imm(op, words)
+            elif k0 == 3 and k1 == 2 and pending is not None:
+                staged[words[0]] = pending
+            elif k0 == 3 and k1 == 1:
+                staged[words[0]] = _imm(op, words)
+        if op == 19 and words:
+            yield off, words[0], dict(staged)
+            staged = {}
+        off += ln
+
+
+def _imm(op, words):
+    """An `op 1` immediate is a DOUBLE carried as two words, not a float."""
+    if op == 1:
+        lo = words[2] if len(words) > 2 else 0
+        return struct.unpack('>d', struct.pack('>II', words[1], lo))[0]
+    return words[1]
+
+
+def _fmt(v):
+    if v is None:
+        return '-'
+    return ('%g' % v) if isinstance(v, float) else '0x%X' % v
+
+
+def load_craft(path):
+    """{stage: {squadron: [craft, ...]}} from `unitgroup.py --all` output."""
+    out, stage, squad = collections.defaultdict(dict), None, None
+    for line in open(path):
+        m = re.match(r'^(S\d\d):', line)
+        if m:
+            stage = m.group(1)
+            continue
+        m = re.match(r'^  (\S+)\s+\S+\s+Count=', line)
+        if m:
+            squad = m.group(1)
+            out[stage][squad] = []
+            continue
+        m = re.match(r'^      unit=(\S+)', line)
+        if m and squad:
+            out[stage][squad].append(m.group(1))
+    return out
+
+
+def main():
+    ap = argparse.ArgumentParser()
+    ap.add_argument('ids', help='comma-separated built-in ids')
+    ap.add_argument('--ssb', default='.', help='directory holding StageNN.ssb')
+    ap.add_argument('--ctx', type=int, default=2, help='neighbour calls to show')
+    ap.add_argument('--craft', help='unitgroup.py --all output, for the cross-tab')
+    a = ap.parse_args()
+
+    ids = {int(x) for x in a.ids.split(',')}
+    craft = load_craft(a.craft) if a.craft else None
+    vals = collections.defaultdict(collections.Counter)
+    units = collections.defaultdict(collections.Counter)
+    cross = collections.defaultdict(lambda: collections.defaultdict(collections.Counter))
+    unresolved = collections.Counter()
+
+    for path in sorted(glob.glob(os.path.join(a.ssb, 'Stage*.ssb'))):
+        stage = os.path.basename(path)[:-4]
+        b = isl.load(path)
+        sym2 = isl.symbols(b, 2)
+        calls = list(walk(b))
+        for i, (off, bid, staged) in enumerate(calls):
+            if bid not in ids:
+                continue
+            uidx = staged.get(4)
+            typ, name = sym2.get(uidx, (None, '?')) if isinstance(uidx, int) \
+                else (None, '?')
+            val = _fmt(staged.get(8))
+            print('%s\t0x%06X\t%d\t%s\t%s\t%s\ttype%s\t[%s]\t[%s]' % (
+                stage, off, bid, val, name,
+                ('0x%X' % uidx) if isinstance(uidx, int) else uidx, typ,
+                ','.join(str(calls[j][1]) for j in range(max(0, i - a.ctx), i)),
+                ','.join(str(calls[j][1])
+                         for j in range(i + 1, min(len(calls), i + 1 + a.ctx)))))
+            vals[bid][val] += 1
+            units[bid][name] += 1
+            if craft is not None:
+                cs = craft.get('S' + stage[-2:], {}).get(name)
+                if cs:
+                    for c in set(cs):
+                        cross[bid][c][val] += 1
+                else:
+                    unresolved[bid] += 1
+
+    for bid in sorted(ids):
+        n = sum(vals[bid].values())
+        print('\n# builtin %d: %d sites, %d distinct values' % (bid, n, len(vals[bid])))
+        print('#   values: ' + ', '.join('%s x%d' % kv for kv in vals[bid].most_common()))
+        print('#   units:  %d distinct, top: %s' % (
+            len(units[bid]), ', '.join('%s x%d' % kv for kv in units[bid].most_common(10))))
+        if craft is not None:
+            print('#   craft cross-tab (%d unresolved):' % unresolved[bid])
+            for c in sorted(cross[bid], key=lambda c: -sum(cross[bid][c].values())):
+                print('#     %-42s %4d  %s' % (
+                    c, sum(cross[bid][c].values()),
+                    ', '.join('%sx%d' % kv for kv in cross[bid][c].most_common())))
+
+
+if __name__ == '__main__':
+    main()

tools/re-capture/kf_time_probe.py

@@ -0,0 +1,89 @@
+#!/usr/bin/env python3
+"""Per-frame quad geometry and vertex colour from a `log_ui_draws` capture.
+
+`ui_draw_order.py` answers "in what order were these painted"; this answers
+"what did this quad look like on frame N, and on N+1". That is what a keyframe
+TIME unit has to be measured against: the bundle says an element ramps from
+t=31 to t=34, and the only way to learn what a `t` is worth is to count the
+rendered frames the same ramp takes in the running game.
+
+    kf_time_probe.py <capture.log> [--csv out.csv]
+
+Emits one row per quad per frame: frame, draw index, pixel rect, whether the
+quad is axis-aligned, and the per-vertex colour word (whose alpha byte is the
+element's fade). Frame numbers are the emulator's VdSwap count, so they are
+SUBMITTED FRAMES, not wall-clock — which is the point: an emulator that runs
+at half speed does not move them.
+"""
+import re
+import sys
+
+W, H = 1280, 720
+VERT = re.compile(r"\[(-?\d+\.\d+),(-?\d+\.\d+),z=(-?\d+\.\d+)(?:,col=([0-9A-F]{8}))?\]")
+
+
+def quads(log):
+    """Yield (frame, draw, x0, y0, w, h, rot, col) for every quad in the log."""
+    frame, pending = None, None
+    for line in open(log):
+        if line.startswith("# every draw"):
+            frame = int(line.rstrip().split()[-1].split("..")[0])
+            continue
+        if line.startswith("--- frame"):
+            frame = int(line.split()[2])
+            continue
+        m = re.match(r"\s*(\d+) (prim=.*)", line)
+        if m:
+            pending = (int(m.group(1)), m.group(2))
+            continue
+        if "vb=0x" in line and pending:
+            hits = VERT.findall(line)
+            verts = [(float(a), float(b), c) for a, b, _z, c in hits]
+            if verts:
+                # Two conventions in one log: the UI sprite shader emits NDC,
+                # the full-screen pass emits pixels already.
+                if max(abs(v) for x, y, _c in verts for v in (x, y)) > 4.0:
+                    pts = [(x, y, c) for x, y, c in verts]
+                else:
+                    pts = [((x + 1) / 2 * W, (1 - y) / 2 * H, c) for x, y, c in verts]
+                per = 4 if "prim=13" in pending[1] else len(pts)
+                for q in range(0, len(pts), per):
+                    chunk = pts[q:q + per]
+                    if not chunk:
+                        continue
+                    xs = [p[0] for p in chunk]
+                    ys = [p[1] for p in chunk]
+                    x0, x1, y0, y1 = min(xs), max(xs), min(ys), max(ys)
+                    rot = all(
+                        (abs(x - x0) < 1.0 or abs(x - x1) < 1.0)
+                        and (abs(y - y0) < 1.0 or abs(y - y1) < 1.0)
+                        for x, y in zip(xs, ys)
+                    )
+                    cols = {p[2] for p in chunk if p[2]}
+                    col = sorted(cols)[0] if len(cols) == 1 else (
+                        "/".join(sorted(cols)) if cols else "")
+                    yield (frame, pending[0], round(x0), round(y0),
+                           round(x1 - x0), round(y1 - y0), "" if rot else "ROT",
+                           col)
+            pending = None
+
+
+def main():
+    log = sys.argv[1]
+    out = None
+    if "--csv" in sys.argv:
+        out = open(sys.argv[sys.argv.index("--csv") + 1], "w")
+        out.write("frame,draw,x,y,w,h,rot,col\n")
+    for row in quads(log):
+        line = "%d,%d,%d,%d,%d,%d,%s,%s" % row
+        if out:
+            out.write(line + "\n")
+        else:
+            print(line)
+    if out:
+        out.close()
+    return 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())

tools/re-capture/screen_build_capture.sh

@@ -0,0 +1,87 @@
+#!/usr/bin/env bash
+# Catch a screen being BUILT, not sitting still.
+#
+# `log_ui_draws` armed at the title only ever sees the steady state, and the
+# steady state is the one thing an animation question cannot be asked of. The
+# build — the wordmarks zooming in, the effect sprites wiping across, the black
+# fade lifting — happens in the seconds BEFORE the screen classifier can call it
+# a title.
+#
+# So arm repeatedly and keep every log: each F10 opens a new numbered file and
+# CLOSES the previous one (which stays on disk, complete). Re-arming every few
+# seconds through the boot therefore tiles the whole approach to the title, and
+# whichever file happens to straddle the build contains it. Stop re-arming the
+# instant the title is classified, so a press cannot land mid-build and abandon
+# the one file that matters.
+#
+# NO pad input at all. Ⓐ during the boot has ended a run on a permanent black
+# screen (docs/re/canary-scripted-input-traps.md), and nothing here needs it.
+#
+# Usage: screen_build_capture.sh [out_dir] [timeout_s]
+#   FRAMES=   frames per capture window (default 1200 ~ 20 s at 60 Hz)
+#   MAXDRAWS= hard stop per capture (default 80000)
+#   REARM=    seconds between F10 presses (default 10)
+set -u
+export HOME=/sylph-home/re SDL_AUDIODRIVER=dummy DISPLAY=:98
+SD="$(cd "$(dirname "$0")" && pwd)"
+OUT="${1:-/sylph-home/re/buildcap}"
+TIMEOUT="${2:-600}"
+mkdir -p "$OUT"; rm -f "$OUT"/xenia_re_ui_draws_*.log
+
+alive(){ ps -o pid=,stat= -C xenia_canary 2>/dev/null | awk '$2 !~ /^Z/ {print $1}'; }
+shot(){ screenshot "$1" >/dev/null 2>&1; }
+wide(){ [ "$(identify -format '%w' "$1" 2>/dev/null || echo 0)" -gt 1000 ]; }
+
+( cd "$OUT" && nohup run-canary \
+    --ui_draw_capture_frames="${FRAMES:-1200}" \
+    --ui_draw_capture_max="${MAXDRAWS:-80000}" \
+    --create_profile_if_none="${SYLPH_TAG:-SylphRE}" \
+    --logged_profile_slot_0_xuid="${SYLPH_XUID:-B13EBABEBABEBABE}" \
+    >"$OUT/canary.stdout" 2>"$OUT/canary.stderr" & )
+sleep "${LAUNCH_WAIT:-8}"
+until xdotool search --name "Xenia-canary" >/dev/null 2>&1; do
+  [ -n "$(alive)" ] || { echo "EMULATOR GONE before the window appeared"; exit 4; }
+  sleep 1
+done
+win="$(xdotool search --name "Xenia-canary" | tail -1)"
+echo "WINDOW=$win"
+
+arm(){
+  xdotool windowactivate "$win" 2>/dev/null
+  xdotool key --window "$win" F10 2>/dev/null
+  xdotool key F10 2>/dev/null
+}
+
+last_arm=-999
+deadline=$(( SECONDS + TIMEOUT ))
+s=none
+while [ $SECONDS -lt $deadline ]; do
+  [ -n "$(alive)" ] || { echo "EMULATOR GONE at ${SECONDS}s"; exit 4; }
+  shot /tmp/sbc.png
+  if [ -s /tmp/sbc.png ]; then
+    wide /tmp/sbc.png || { echo "GRAB IS NOT THE GAME SURFACE at ${SECONDS}s"; exit 6; }
+    s="$(python3 "$SD/screen_id.py" /tmp/sbc.png | awk '{print $1}')"
+  fi
+  if [ "$s" = "${WANT:-title}" ]; then
+    echo "t=${SECONDS}s $s  <- STOP re-arming"
+    cp /tmp/sbc.png "$OUT/reached.png"
+    break
+  fi
+  if [ $(( SECONDS - last_arm )) -ge "${REARM:-10}" ]; then
+    arm; last_arm=$SECONDS
+    echo "t=${SECONDS}s $s  (armed)"
+  else
+    echo "t=${SECONDS}s $s"
+  fi
+  sleep 1
+done
+
+# Let the straddling window run itself out rather than cutting it short.
+echo "waiting for the in-flight capture to close..."
+for _ in $(seq 1 40); do
+  grep -q "UI-CAP. done" "$OUT/canary.stdout" 2>/dev/null && break
+  sleep 1
+done
+grep -i "UI-CAP" "$OUT/canary.stdout" | tail -6
+ls -l "$OUT"/xenia_re_ui_draws_*.log 2>/dev/null || echo "NO CAPTURE LOG"
+echo "SCREEN BUILD CAPTURE DONE (screen=$s, emulator left running)"

tools/re-capture/slb_segment_phase.py

@@ -0,0 +1,297 @@
+#!/usr/bin/env python3
+"""Why a `.slb` bank's XMA data starts at 1392 / 1468 / 1600 / 1728.
+
+Static, disc-only. No emulator, no decoder, no run-generated input: everything
+here is read straight out of `dat/sound.pak` + `dat/sound.p00..p04`.
+
+The answer (see docs/re/structures/slb-data-offset.md): the XMA packet grid is
+2048-byte aligned *inside each individual `.pNN` segment file*, but the `.pak`
+TOC addresses entries in the flat CONCATENATION of those files, at offsets that
+are themselves multiples of 2048.  The segment files are not multiples of 2048
+long, so the grid phase seen inside an entry is
+
+    X = (cumulative start of the .pNN segment holding the wave) mod 2048
+
+and the four disc-wide values are just the running sums of the segment sizes.
+
+Subcommands
+    phases            the segment table and where 1392/1468/1600/1728 come from
+    verify            predicted vs measured X over every bank on the disc
+    bank <name>       full structural dump of one bank entry
+    chain <name> [n]  the tiling arithmetic across n consecutive entries
+
+Usage
+    SYLPHEED_DISC=/work/sylph_extract python3 slb_segment_phase.py verify
+"""
+
+import bisect
+import os
+import re
+import struct
+import sys
+import zlib
+
+BLOCK = 2048  # XMA1 packet size and the archive's data-offset alignment unit
+WAVE_HDR = 4096  # RIFF + 32-byte `fmt ` + `Dmmy` pad, always exactly two blocks
+
+# --- IPFB name hash (crate `sylpheed_formats::hash`, from `sub_82455C78`) -----
+MODULUS = 0x00FF_F9D7
+RECIP = 0x8003_1493
+
+
+def _rotl32(x, n):
+    x &= 0xFFFFFFFF
+    return ((x << n) | (x >> (32 - n))) & 0xFFFFFFFF
+
+
+def name_hash(name):
+    a = b = 0
+    for byte in name.lower().encode("latin-1"):
+        c = (byte - 256) & 0xFFFFFFFF if byte >= 0x80 else byte
+        a = ((_rotl32(a, 8) & 0xFFFFFF00) + c) & 0xFFFFFFFF
+        b = (b + c) & 0xFFFFFFFF
+        q = _rotl32(((a * RECIP) >> 32) & 0xFFFFFFFF, 9) & 0x1FF
+        a = (a - q * MODULUS) & 0xFFFFFFFF
+    return ((b & 0xFF) << 24) | (a & 0xFFFFFF)
+
+
+class Pak:
+    """Minimal IPFB reader: TOC plus raw access to the concatenated segments."""
+
+    def __init__(self, path):
+        data = open(path, "rb").read()
+        assert data[:4] == b"IPFB", data[:4]
+        count, self.block, self.flags = struct.unpack_from(">III", data, 4)
+        self.toc = [struct.unpack_from(">III", data, 0x10 + 12 * i) for i in range(count)]
+        base, pos, self.segs = path[:-4], 0, []
+        i = 0
+        while os.path.exists("%s.p%02d" % (base, i)):
+            seg = "%s.p%02d" % (base, i)
+            n = os.path.getsize(seg)
+            self.segs.append((pos, pos + n, seg))
+            pos, i = pos + n, i + 1
+        self.seg_starts = [s for s, _, _ in self.segs]
+
+    def raw(self, off, size):
+        """Bytes [off, off+size) of the flat concatenation of the .pNN files."""
+        out = b""
+        for s, e, path in self.segs:
+            if off < e and off + size > s:
+                lo, hi = max(off, s), min(off + size, e)
+                with open(path, "rb") as f:
+                    f.seek(lo - s)
+                    out += f.read(hi - lo)
+        return out
+
+    def read(self, idx):
+        _, off, csz = self.toc[idx]
+        raw = self.raw(off, csz)
+        return zlib.decompress(raw[10:]) if raw[:2] == b"Z1" else raw
+
+    def find(self, name):
+        h = name_hash(name)
+        for i, (hh, _, _) in enumerate(self.toc):
+            if hh == h:
+                return i
+        return None
+
+    def phase_at(self, concat_off):
+        """The 2048-grid phase in force at a flat-concatenation offset."""
+        k = bisect.bisect_right(self.seg_starts, concat_off) - 1
+        return self.seg_starts[k] % BLOCK
+
+
+def entry_names(disc):
+    """Every `.slb` path named in any `<lang>\\sounds.tbl` inside tables.pak."""
+    tbl = Pak(os.path.join(disc, "dat", "tables.pak"))
+    names = set()
+    for lang in ("eng", "jpn", "deu", "fra", "esp", "ita"):
+        i = tbl.find(lang + "\\sounds.tbl")
+        if i is None:
+            continue
+        blob = tbl.read(i)
+        for run in re.finditer(rb"[\x20-\x7e]{6,}", blob):
+            for m in re.finditer(r"[A-Za-z0-9_\\.]+\.slb", run.group().decode("latin-1")):
+                names.add(m.group())
+    return names
+
+
+# --- structure walkers --------------------------------------------------------
+def bank_headers(data, phase):
+    """Bank headers inside an entry. They sit on the grid, so only `phase` is scanned."""
+    out = []
+    for off in range(phase, max(0, len(data) - 56), BLOCK):
+        if data[off + 0x18 : off + 0x1C] != b"\x00\x00\x08\x00":
+            continue
+        if data[off : off + 4] != data[off + 0x20 : off + 0x24]:
+            continue
+        f = struct.unpack(">14I", data[off : off + 56])
+        out.append(
+            dict(at=off, id=f[0], data_size=f[7], hdr_blocks=f[9],
+                 bits=f[10] >> 16, channels=f[10] & 0xFFFF)
+        )
+    return out
+
+
+def waves(data):
+    out = []
+    for m in re.finditer(b"RIFF", data):
+        r = m.start()
+        if data[r + 8 : r + 12] != b"WAVE":
+            continue
+        dp = data.find(b"data", r)
+        if dp < 0:
+            continue
+        out.append(dict(at=r, data_at=dp + 8,
+                        data_size=struct.unpack_from("<I", data, dp + 4)[0]))
+    return out
+
+
+def seeks(data):
+    """`seek` (XMA dpds) chunks: one u32 LE per emitted packet, so the entry count
+    is the wave's packet count and the chunk sits immediately after its data."""
+    out = []
+    for m in re.finditer(b"seek", data):
+        s = m.start()
+        if s + 16 > len(data):
+            continue
+        size, streams, n = struct.unpack_from("<III", data, s + 4)
+        if streams == 1 and size == 8 + 4 * n and n:
+            out.append(dict(at=s, packets=n, data_start=s - n * BLOCK))
+    return out
+
+
+# --- subcommands --------------------------------------------------------------
+def cmd_phases(pak):
+    print("segment            size      size%2048   cum_start      PHASE (= cum_start%2048)")
+    running = 0
+    for s, e, path in pak.segs:
+        n = e - s
+        print("  %-10s %11d  %8d   %12d   %d" % (os.path.basename(path), n, n % BLOCK, s, s % BLOCK))
+        running = s % BLOCK
+    print()
+    print("The four disc-wide values are the running sums of `size % 2048`:")
+    acc = 0
+    for s, e, path in pak.segs:
+        print("    %-10s phase %4d" % (os.path.basename(path), s % BLOCK))
+        acc = (acc + (e - s)) % BLOCK
+    _ = running
+
+
+def cmd_verify(pak, disc):
+    names = entry_names(disc)
+    ok = bad = 0
+    seek_ok = seek_bad = 0
+    misses = []
+    for name in sorted(names):
+        i = pak.find(name)
+        if i is None:
+            continue
+        _, off, _ = pak.toc[i]
+        data = pak.read(i)
+        w = waves(data)
+        if w:
+            pred = pak.phase_at(off + w[0]["at"])
+            meas = w[0]["at"] % BLOCK
+            if pred == meas:
+                ok += 1
+            else:
+                bad += 1
+                if len(misses) < 10:
+                    misses.append((name, pred, meas))
+        else:
+            # RIFF-less entry: the prediction is still exact, cross-check on `seek`.
+            sk = seeks(data)
+            if sk:
+                pred = pak.phase_at(off + sk[0]["at"])
+                if sk[0]["at"] % BLOCK == pred:
+                    seek_ok += 1
+                else:
+                    seek_bad += 1
+    print("banks with a RIFF   : predicted == measured %d, mismatches %d" % (ok, bad))
+    print("RIFF-less, via seek : agree %d, disagree %d" % (seek_ok, seek_bad))
+    for m in misses:
+        print("   MISMATCH", m)
+    return 1 if (bad or seek_bad) else 0
+
+
+def cmd_bank(pak, name):
+    i = pak.find(name)
+    if i is None:
+        sys.exit("no such entry: " + name)
+    _, off, csz = pak.toc[i]
+    data = pak.read(i)
+    phase = pak.phase_at(off)
+    print("%s\n  pak offset %d (%%2048=%d)  stored %d bytes  phase %d"
+          % (name, off, off % BLOCK, csz, phase))
+    events = []
+    for b in bank_headers(data, phase):
+        events.append((b["at"], "BANK  id=%d data_size=%d hdr=%d blocks (%d B) %dbit/%dch -> wave at %d"
+                       % (b["id"], b["data_size"], b["hdr_blocks"], b["hdr_blocks"] * BLOCK,
+                          b["bits"], b["channels"], b["at"] + b["hdr_blocks"] * BLOCK)))
+    for w in waves(data):
+        over = w["data_at"] + w["data_size"] - len(data)
+        events.append((w["at"], "RIFF  data@%d size=%d (%d packets)%s"
+                       % (w["data_at"], w["data_size"], w["data_size"] // BLOCK,
+                          "  OVERRUNS window by %d" % over if over > 0 else "")))
+    for s in seeks(data):
+        events.append((s["at"], "seek  %d packets -> its data began at %d%s"
+                       % (s["packets"], s["data_start"],
+                          "  (BEFORE this window)" if s["data_start"] < 0 else "")))
+    for at, text in sorted(events):
+        print("   %8d  %%2048=%-5d %s" % (at, at % BLOCK, text))
+
+
+def cmd_chain(pak, name, count):
+    """Show that entry K's overrunning wave lands exactly on entry K+1's leading `seek`."""
+    i = pak.find(name)
+    if i is None:
+        sys.exit("no such entry: " + name)
+    order = sorted(range(len(pak.toc)), key=lambda k: pak.toc[k][1])
+    start = order.index(i)
+    prev = None
+    for k in order[start : start + count]:
+        _, off, csz = pak.toc[k]
+        data = pak.read(k)
+        padded = (len(data) + BLOCK - 1) // BLOCK * BLOCK
+        sk = seeks(data)
+        lead = sk[0] if sk and sk[0]["data_start"] < 0 else None
+        w = waves(data)
+        tail = w[-1] if w and w[-1]["data_at"] + w[-1]["data_size"] > len(data) else None
+        line = "off=%-11d len=%-7d padded=%-7d" % (off, len(data), padded)
+        if lead:
+            line += "  leading seek@%-6d (%d packets)" % (lead["at"], lead["packets"])
+        if tail:
+            line += "  tail wave ends at %d" % (tail["data_at"] + tail["data_size"])
+        print(line)
+        if prev and lead:
+            predicted = prev[0] - prev[1]  # tail end minus previous padded length
+            mark = "OK " if predicted == lead["at"] else "!! "
+            print("      %s predecessor's wave ends %d past its padded window; leading seek is at %d"
+                  % (mark, predicted, lead["at"]))
+        prev = ((tail["data_at"] + tail["data_size"]) if tail else None, padded)
+        if prev[0] is None:
+            prev = None
+
+
+def main():
+    disc = os.environ.get("SYLPHEED_DISC")
+    if not disc:
+        sys.exit("set SYLPHEED_DISC to the extracted disc root")
+    pak = Pak(os.path.join(disc, "dat", "sound.pak"))
+    argv = sys.argv[1:] or ["phases"]
+    cmd = argv[0]
+    if cmd == "phases":
+        cmd_phases(pak)
+    elif cmd == "verify":
+        sys.exit(cmd_verify(pak, disc))
+    elif cmd == "bank":
+        cmd_bank(pak, argv[1])
+    elif cmd == "chain":
+        cmd_chain(pak, argv[1], int(argv[2]) if len(argv) > 2 else 4)
+    else:
+        sys.exit(__doc__)
+
+
+if __name__ == "__main__":
+    main()