feat(wave48-assertions): wave48_fbb_active.json — 31 ids W-121-A..AE (FBB-ACTIVE 0xF2)#927
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…(FBB-ACTIVE 0xF2) Wave-48 Lane SS' — assertion ledger for Forward Body Bias of Active Path. Symmetric dual of Wave-47 RBB: W47: V_BS = -V_DD*gamma^4 (idle, leakage cut) W48: V_BS = +V_DD*gamma^4 (active, delay cut) Same gamma^4 magnitude, opposite sign. OP_FBB_ACTIVE = 0xF2 = 242 (slot 2 of extended sacred bank 0xD0..0xFF). Distinct from OP_FBB = 0xEE (W44 STATIC FBB) — this is the DYNAMIC active-path variant. 31 assertion IDs covering: - opcode encoding + bank membership (W-121-A, AC) - V_BS positive sign + band + center (W-121-B, C, D) - delay reduction band + center (W-121-E, F) - leakage overhead cap, net floor, f_clk cap (W-121-G, H, I) - TOPS/W lift 1063->1083 (+1.881%) (W-121-J) - cross-wave symmetry with RBB (W-121-K) - 17 distinctness lemmas vs W36..W47 opcodes (W-121-L..AB) - R18 frozen — no new ROM cell (W-121-AD) - composite invariant (W-121-AE) Each ID maps Coq lemma <-> Rust test <-> RTL assertion. R5/R7/R18/R-SI-1 enforced per assertion ledger. Tracks: gHashTag/trinity-fpga#171 Refs: Tschanz JSSC 2002, Mukhopadhyay 2009 phi^2 + phi^-2 = 3 · gamma^4 = phi^-12 · DOI 10.5281/zenodo.19227877 Signed-off-by: Vasilev Dmitrii <admin@t27.ai>
This was referenced May 16, 2026
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Wave-48 Lane SS' — Assertion Ledger for FBB-ACTIVE (0xF2)
Tracks: gHashTag/trinity-fpga#171
Pair: assertions/wave47_rbb.json (W47, 0xF1) — symmetric dual
31 assertion IDs: W-121-A through W-121-AE
Each ID triple-maps Coq lemma name ↔ Rust test name ↔ RTL assertion name — single source of truth.
Verification targets enforced
Falsification witness
W48-FBB-ACTIVE-1: silicon measurement of (delay_red < 8% OR leak_ovh > 8% OR net < 8%) invalidates W48 closure.
φ²+φ⁻²=3 · γ⁴=φ⁻¹² · DOI 10.5281/zenodo.19227877
Signed-off-by: Vasilev Dmitrii admin@t27.ai