capture_global_writes.py hooks vm_operand_write@0x425fb0 (plaintext values,
before the obfuscated store — sidesteps the shelved flat-scan problem) and folds
the engine's global-int writes into a GameSession snapshot. --spawn captures from
boot (packer-aware: polls until the code unpacks, then attaches — AGE.EXE unpacks
in-place so a spawn-time hook hits packed bytes; also kills the spawned pid if
setup fails so no suspended orphan). Age.Cli 'trace ... --state <snap>' runs a
scene from the captured state.
Validated: a real boot->new-game->SC0000 capture (34008 globals incl. G[0x6c1]=1)
seeds the VM to match the engine's ENTIRE opening (542 ops, no non-realignable
fork) with zero manual seeding. Residual: a 2-op color detour (0x202/0x203)
unfixed by state = a real branch diff to chase. Engine 81/81, diff 5/5.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
