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Author SHA1 Message Date
alex
da823d3b36 Z: a second calibrated oracle pair -- three instruments agree on 20 words for turn 5 2026-09-08 10:45:18 -04:00
alex
1d50f1edda lane Z: the RNG ledger for one strategic turn, measured end to end
We consume 18-22 generator words per turn and model none of them as a count.
All of it is inside StrategyServer::ProcessTurn; OnAllCombatDone_Tail costs 0
on every turn observed; the residual outside the two drivers is exactly 0. The
generator does not move between turns at all, so the interval a standalone has
to reproduce is closed at both ends.

The instrument reads generator STATE, not calls, and that choice paid: the
image has four draw entry points, not three (NextUInt 0x004f7670 is in no
lane's primitive set) plus inlined draws in twelve functions, two reachable
from the turn roots. A primitive-counting hook would have undercounted
silently.

Checked against the save files independently: the turn-6 autosave pair gives
18 words read from the two Sim.RNG blobs, and with twists == 0 that number
never passes through a twist implementation -- so the two instruments do not
share the hidden assumption they could have.

Corrections to combat-done-tail.md, in place:
  * the node-line 0x20000-fleet check runs AFTER the Chance(0.5f) call and
    cannot gate the draw; the expiry test is NodePath::RemainingLife 0x006e2130
    and is now a formula rather than a description
  * StrategyHost::Autosave is ret 8 and returns the std::string* in EAX
  * SNMAllCombatDone IS delivered every End Turn (8 of 8) -- lane K's inference
    was right; the stronger no-encounter reading is narrowed, not closed
  * S+0x8 advances 12-14 times per turn, not twice

Node-line decay still has not fired. The hook reports the distance instead of
the absence: 51 of 53 lines are permanent, the mortal ones are dug ~1/turn by
the Zuul, each ~40 turns from expiry. It stays a labelled hypothesis.
2026-09-08 09:45:06 -04:00