mirror of
https://github.com/Druthulu/BFM-decomp
synced 2026-09-29 23:24:32 -04:00
Drew T
a4640e3a51
The roadmap's decisive P28/P29 input (h_seq families bank at ~0%) is byte-refuted. Same
family, same era, through the carve path its own exemplar required: 8 of 8 BANKED.
- THE PROBE: jtbl_family_bank.py func_8017BEBC ov_SC01_000 0x8017bebc --raw
.run/phase26-cracks/func_8017BEBC.c over 8 of 115 members (4 same-address + 4
CROSS-address, exercising to_addr) -> {'BANKED': 8}.
R22: make clean && extract-all && check-all -> 140 passed, 0 failed of 140.
- ROOT CAUSE of the P27 0/8, byte-verified: 0x8017BEBC is a jr/switch core. §47 banked its
exemplar as "lazy isolation -> carve (9-piece interleave) -> splice -> BYTE-IDENTICAL" and
called the fix "×N template-safe". family_sweep.hseq_sweep stages C and gates -- it has NO
CARVE STEP -- so gcc's generated jump table is never placed at the sibling's address. The
entire residual is TWO WORDS: classify_member -> PURE, ndiff=2 @ idx 343/345 =
lui/lw %hi/%lo(jtbl_801EC44C). overlays.mk:112 carves ov_SC01_000_jr_8017BEBC.o for the
exemplar; :134 has no such entry for the member. tools/jtbl_family_bank.py exists to do
exactly this per sibling and had NEVER been run on this family.
- THREE COMPOUNDING FAILURES made the doctrine: (1) wrong tool for the class; (2) n=1 on the
LEAST representative family -- has_mid_jr is 3 of 163 matched-exemplar families (120 of
13,232 members) -- generalized to the whole frontier; (3) its corroborating Phase-26 probes
(tiny-IMM 0/241, PURE 0/134, pinned 0/133) ALL predate _carry_macros (P27 T5, commit:0637).
P27's decision-log calls its own re-probe "a FOURTH phantom exhaustion proof" -- naming the
mechanism that would have faked the first three, and never re-running them. The ~0% doctrine
has NO surviving post-fix evidence.
- SCOPE HONESTY (P9): this refutes the EVIDENCE for ~0%; it does NOT establish a general rate.
n=1, and jr is the rarest class by construction. T3 measures the rate over the population
that actually exists: 1418 matched-exemplar families / 21,889 members (PURE 78% / IMM 20% /
STRUCT 1.8% -- note the roadmap sizes its swing number on STRUCT = 1.8% of the input).
- TWO SELF-CORRECTIONS (R14), both mine: (a) the approved plan's "add jtbl_ to symbol_map" was
a WRONG FIX FROM A TRUE DIAGNOSIS -- a compiler-generated switch table is never named in C,
so there is no token to substitute; the fix is PLACEMENT. No symbol_map change was made and
T1 became a run, not a code change. (b) func_8017BEBC.md's header still says "close=2 of 952"
(pre-§47-slider); the .c was updated, the .md was not -- templating from the header's premise
would have produced zeros indistinguishable from a wall.
- DISTILLED IN-SESSION (R30/R16): cookbook §53 (sweep a family with the tool its exemplar
needed: the carve law, the --raw rule, the symbol_map-jtbl trap, and the "before a 0%
retires a lever" three-question test); calibration.md's decisive table REWRITTEN (the ~0%
row marked an artifact, not a rate; the addressable pool tabulated); decision-log R31.
- Carried: the family's remaining 107 members (~101,864 ins, ~0 agent tokens) -> T1b.