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re: read_freg counts SECONDS -- the 32 "flags" are a stopwatch bank

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The open question was the unit, not the array.  Following the writers of
[phase+88] settles it:

  * sub_822710D0(phase, dt), called from ScriptPhase::Update, does
    prev[i] = cur[i] then, only while [phase+120][i] == 1, cur[i] += dt --
    so +88/+104/+120 are current / previous / running, 32 entries each.
  * dt is seconds by a non-circular round trip: frames * (1/60) * 10000
    -> clamp 3200 -> * 1e-4, in the timing singleton at [0x828F35B4].
    The clamp is 0.32 s, a frame ceiling.
  * 675/675 timeline kinds are indices their own phase starts (control
    11.2 %), which is why kind is only ever 0 or 5.

Corrects isl-builtins.md twice: set_flag writes 0.0 not 1.0, and
clear_flag clears the running flag rather than the value.  Confirms its
grouping of 8/9/93 as one family.  Docs only -- all seven ISL artefacts
regenerate byte-identical.
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Sylpheed RE agent
2026-08-27 08:48:49 +00:00
parent 20b8412a38
commit 3cad5d063f
6 changed files with 268 additions and 4 deletions
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docs/re/INDEX.md
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@@ -98,6 +98,7 @@ files, which is how the same ground got covered twice.
| [`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 |
| [`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-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 | — |