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Issue #31: wire the EJECT button (EjectAmmo msg 0xb @004bb9b8) -- the in-mission unjam

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Disasm-faithful transcription of the export-gap handler onto
ProjectileWeapon (MESSAGE_ENTRY id 0xb, the #19 pattern).  PRESS arms
the ~3s UpdateEject countdown (bin alarm -> Ejecting(3); gate 2 parks
the weapon offline mid-eject -- authentic).  HOLD to completion =
DumpAmmo jettisons the bay -> NoAmmo.  TAP (release early) cycles ONE
round out via FeedAmmo and returns the weapon to Loading -- clears a
jam at the cost of a round (and recovers a FailureHeat 7 while rounds
remain).  Binary structure kept exactly incl. the press-no-bin
fall-through into the release block.

AmmoBin: Ejecting(3)/Ejected(4) alarm levels decoded + named
SetAmmoState accessor (databinding rule).  Always-on forensics:
'[weap] EJECT tap' + '[ammo] bay DUMPED overboard (N rounds)'.

Rig-verified live (BT_EJECTTEST=1 / =hold on LRM15): taps eject one
round each and return the weapon to service (15->8 across cycles);
hold dumps all 16 -> NoAmmo.  Awaiting a human press of the actual
ENG-page button on a jammed weapon.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
arcattack
2026-07-23 13:49:11 -05:00
co-authored by Claude Opus 4.8
parent 225fe43f0c
commit 2edd1b5363
7 changed files with 134 additions and 8 deletions
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context/decomp-reference.md
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@@ -273,7 +273,11 @@ From the weapon `.SUB` records + the charge-curve `.data` constants (PE-parsed a
novice + @4ad7d4 heat-model + press-only, then idx@0x320=(idx+1)%(max@0x32C+1), NO
ResetFiringState); Emitter's faithful body existed as the orphaned "AdvanceSeekVoltage" (zero
callers) -- both registered via MESSAGE_ENTRY (ids 9/0xb). Verify: BT_SEEKTEST=1 +
BT_SEEK_LOG=1 → `[seek] <name> -> gear N` cycling. EjectAmmo remains unwired (#31).
BT_SEEK_LOG=1 → `[seek] <name> -> gear N` cycling. **EjectAmmo WIRED 2026-07-23 (issue
#31)**: MESSAGE_ENTRY id 0xb on `ProjectileWeapon::GetMessageHandlers` (projweap.cpp) +
`AmmoBin::SetAmmoState` accessor; rig-verified both paths (`BT_EJECTTEST=1` tap = one round
out/return to Loading, `=hold` = bay DUMPED; `[weap] EJECT tap` / `[ammo] bay DUMPED` logs).
Awaiting live cockpit-button verification.
**EjectAmmo @004bb9b8 DECODED 2026-07-23 (raw disasm; the fn sits in a Ghidra export gap)
[T1]** — old-timer testimony ("tap ejects a round, hold ejects the bay, eject clears a jam")
matched the bytes exactly: novice guard @4ac9c8 → **PRESS** (`msg+0xc > 0`): bin alarm