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Wave-44 Lane JJ'' — fbb-active-witness (OP_FBB=0xEE)

Closes #154 (on trinity-fpga)

Sacred opcode

0xEE = 238 OP_FBB — post ICA-W44-001 rectification (0xED is held by SparsityMask W40 LL per ICA-W40-002).

Theory anchor

V_FBB = V_DD · (1 + γ⁴) ≈ 1.00309 · V_DD
γ⁴ = φ⁻¹² ≈ 0.003089786     (Sacred ROM cell B007⁴)

What lands

crates/fbb-active-witness/ — 8/8 tests pass locally.

Constants exposed (src/lib.rs, ~157L):

Name	Value	Meaning
OP_FBB	0xEE	sacred opcode
GAMMA4_BPS	31	γ⁴ in basis-points, Sacred ROM B007⁴ Q-encoding
V_DD_MV	800	supply voltage
V_FBB_MV	802	bias rail = V_DD · (1 + γ⁴)
V_FBB_MAX_MV	840	5% safety ceiling
MAC_SPEEDUP_MIN_PCT / MAC_SPEEDUP_MAX_PCT	7 / 15	speed-up band
POWER_OVERHEAD_MAX_PCT	2	power overhead ceiling
TOPS_W_LIFT_MIN_PCT	7	wave admission floor

State machine: FbbCtrl::step(op) activates bias rail only under OP_FBB.

Tests (tests/opcode.rs, 8/8 PASS):

1. test_opcode_ee_constant — OP_FBB == 0xEE
2. test_opcode_mismatch_keeps_ctrl_off — wrong opcode → no bias
3. test_op_fbb_activates_bias_rail — OP_FBB → V_FBB rail up, speed-up in band
4. test_v_fbb_safety_band — V_DD < V_FBB ≤ V_FBB_MAX, overshoot ≤ 5%
5. test_gamma4_match_half_percent — GAMMA4_BPS within ±0.5% of γ⁴
6. test_power_overhead_bounded — overhead ≤ 2% (3% rejected)
7. test_tops_w_lift_min — lift ≥ +7%, +6% rejected
8. test_distinct_from_all_prior_opcodes — distinct from 0xE1..0xED (13 prior)

Distinctness witnesses

13 methods on FbbCtrl: distinct_from_sparse_mask, distinct_from_drowsy_ret, distinct_from_spec_exit, distinct_from_null_pe, distinct_from_stoch, distinct_from_sparse, distinct_from_dfs, distinct_from_holo_mux, distinct_from_subth, distinct_from_avs, distinct_from_lut_npu, distinct_from_tom, distinct_from_tenet.

Quantum Brain 1:1 Silicon Mapping

• PHYS → SI: γ⁴ = φ⁻¹² → body-bias rail divider (Sacred ROM B007⁴)
• BIO → SI: amacrine cell body-bias modulation → MAC pipeline speed-up
• LANG → SI: TRI-27 FBB → 0xEE OP_FBB

Workspace

Cargo workspace members list updated; resolver = 2 unchanged.

$ cargo test --quiet -p fbb-active-witness
running 8 tests
........
test result: ok. 8 passed; 0 failed

Links

• Issue: trinity-fpga#154
• Coq twin lane (merged): t27#675 @ 0dc841b8
• JSON twin lane: [trios#feat/wave44-fbb-json]

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Anchor: φ² + φ⁻² = 3 · γ⁴ = φ⁻¹² · V_FBB = V_DD · (1 + γ⁴) · DOI 10.5281/zenodo.19227877 · NEVER STOP

Signed-off-by: Vasilev Dmitrii admin@t27.ai
ORCID 0009-0008-4294-6159