- docs/commit-map.tsv: 4,032 rows (ordinal of the ORIGINAL main -> rewritten hash, author/committer dates, subject);
1 pruned row of zeros (ordinal 1712, "session archive update"); 0 old hashes asserted; ordinal 1 unchanged by the
rewrite (byte-identical)
- resolve_tokens: 1,238 commit:NNNN tokens -> shortest-unique new hashes in 98 files (docs, phase-ends, logs, tool
docstrings, 2 C comments, the A5 evidence logs); residue left as tokens: commit:1712 x4 (the pruned commit),
commit:orphan-24 x2, commit:orphan-26, commit:orphan-35 (cited commits that exist in no lineage)
- the rewrite (C4): filter-repo 2.47.0 on a bare clone of the C2 tip, 311 s, exactly 1 pruned, main 4,032 -> 4,031;
the pre-rewrite history is mirrored in the private archive repo and in the local bundle
- the proof (C5): verify_rewrite 4,031 pairs / 0 failures; absent_scan 0 offenders; gate_scan 0 offenders on the clone
- adoption (C6): 100 text files differ at the tip, 0 purge paths, 0 added/deleted; leftover refs dropped; no gc yet
- resolver skips tools/public_rewrite/ (its self-test fixtures are the token grammar, not citations); repo-local
identity is the GitHub noreply address from here on; CURRENT_PHASE: C4–C7 logged, checkpoint -> NEXT = C8
- gate_main .run/P32/t4e/slate_39308.json --apply: "slate 1 -> 1 compatible … BANKED 1 main functions -- 143dbb89f34491258bbc27810d0a12ec8b43a8dd BYTE-IDENTICAL" (clean main rebuild)
- draft .run/P32/t4e/bank/func_80039308.c = b56 (no register pins, no fences, no asm bodies); the 56-variant route is in .run/P32/t4e/NOTES.md
- the S84 PLATEAU's two causes were both compiler mechanisms missing from the censuses: combine.c:2306 (i2dest_in_i2src skips the ref decrement → reload1.c:658 slot) and loop.c:695-700 (a named variable set after a jump is never a movable; cse.c make_regs_eqv folds the arms onto the later-mentioned copy target unless the copy is a subreg move)
- fleet: INCLUDE_ASM stubs 2 -> 0; every game-code function of every binary is C
- gate_main .run/P32/t4e/slate_32a74.json --apply: "slate 1 -> 1 compatible … BANKED 1 main functions -- 143dbb89f34491258bbc27810d0a12ec8b43a8dd BYTE-IDENTICAL" (clean main rebuild)
- draft .run/P32/t4e/bank/func_80032A74.c = the S84 u16 TU-clean body (422/422 code) + `gx = dd->unk07; gx -= 0x100; flag = (u32)sub < (u32)(u8)gx;`
- mechanism + 18 isolated reproducers: .run/P32/t4e/ghost/ (k4/k5/k7/k14/k16/k17 mint the slot; byte-store hosts do not); cookbook §501-Q to follow
- main: stubs 2 -> 1 (func_80039308 remains, now DIFF 2 in the real TU via the same ghost + the s17/s18 variable reuse)
- func_80185810: draft .run/P32/t4d/bank/func_80185810.c (hand agent, agent MATCH re-verified by coordinator rtu_match in the real TU)
- one build for the same-TU batch: make build BINARY=ov_SC03_105 -j8 rc 0; sha1 d305ff6da199b52d0d44023766643a8b661ed524 == config/check.ov_SC03_105.sha (BYTE-IDENTICAL)
- src/ov_SC03_105/ov_SC03_105_jr_80181C84.c: 1 INCLUDE_ASM left
- func_800CF408: draft .run/P32/t4c/bank/func_800CF408.c (hand agent, agent MATCH re-verified by coordinator rtu_match in the real TU)
- one build for the same-TU batch: make build BINARY=md_MAIN_007 -j8 rc 0; sha1 2ff702b605ab5cfc18474c464c4c07e5f8ffd48c == config/check.md_MAIN_007.sha (BYTE-IDENTICAL)
- src/md_MAIN_007/md_MAIN_007.c: 0 INCLUDE_ASM left
- func_800CF6D0: draft .run/P32/t5x/fable/func_800CF6D0.c (fable agent, agent MATCH re-verified by coordinator rtu_match in the real TU)
- one build for the same-TU batch: make build BINARY=md_MAIN_007 -j8 rc 0; sha1 2ff702b605ab5cfc18474c464c4c07e5f8ffd48c == config/check.md_MAIN_007.sha (BYTE-IDENTICAL)
- src/md_MAIN_007/md_MAIN_007.c: 1 INCLUDE_ASM left
- pinned since S76/S79 as PROVED (§474: fold-const.c:882 split_tree merges MULT(MULT(i,2),2) in every C spelling; the two escapes
each cost one instruction — stupid.c adjacency / expand_decl use-brackets); 20 spellings + statement-expression + register
temp forms measured; the S83 hand pass measured four block-scoped forms at 193/131
- the mechanism (dumps + source): split_tree only decomposes MULT/PLUS/MINUS and never distributes MULT over PLUS, so
MULT(PLUS(MULT(i,2),1),2) survives fold; expr.c:5368's EXPAND_SUM distributive law returns (plus (mult (mult X 2) 2) 2);
both_summands (expr.c:5248) + plus_constant cancel the +2 against the -2 into the bare symbol; memory_address -> force_operand
expands the two expand_mult copy;sll pairs adjacent (expmed.c:2227/2244) with no note or variable, so stupid.c's born+2
rule 2-colours v1/a0 exactly as the target and expand_binop's late copy_to_mode_reg(sym) gives la $a0 / addu / lbu 0()
- ruled out from source: a hard-reg pin + shift outer form (191, LENGTH-DRIFT — a REG index makes (plus sym reg) a legitimate
MIPS address so la/addu vanish: the target's la;addu;lbu shape REQUIRES the index to reach memory_address as a MULT rtx),
COMPOUND_EXPR shield (fold distributes), SAVE_EXPR via ?:, COND shields, builtin pseudo-constants, pin+MULT
- draft .run/P32/t5x/fable/func_80011380.c; report .run/P32/t5x/reports/func_80011380.md; coordinator rtu_match MATCH 192/192
in src/boot.c (--o0); gate_main slate_11380: BANKED, 143dbb89 BYTE-IDENTICAL; all 15 jal callees + data-symbol counts equal
- main open 3 -> 2 (func_80032A74 pinned NEAR 1; func_80039308 NEAR 4)
- func_8017DC80: draft .run/P32/t5x/fable/func_8017DC80.c (fable agent, agent MATCH re-verified by coordinator rtu_match in the real TU)
- one build for the same-TU batch: make build BINARY=ov_SC07_002 -j8 rc 0; sha1 fad71342019704d1dd6ec25f2f3934c97e322624 == config/check.ov_SC07_002.sha (BYTE-IDENTICAL)
- src/ov_SC07_002/ov_SC07_002_jr_8017C8D0.c: 2 INCLUDE_ASM left
- func_800CD92C: draft .run/P32/t5x/fable/func_800CD92C.c (fable agent, agent MATCH re-verified by coordinator rtu_match in the real TU)
- one build for the same-TU batch: make build BINARY=md_MAIN_009 -j8 rc 0; sha1 d270f695b793b5c03db159b7aabcc066daa87eda == config/check.md_MAIN_009.sha (BYTE-IDENTICAL)
- src/md_MAIN_009/md_MAIN_009.c: 0 INCLUDE_ASM left
- func_800CF3E8: draft .run/P32/t5x/fable/func_800CF3E8.c (fable agent, agent MATCH re-verified by coordinator rtu_match in the real TU)
- one build for the same-TU batch: make build BINARY=md_MAIN_003 -j8 rc 0; sha1 dd1b32ecf1103c6f7cf1943d25546a3046e17b14 == config/check.md_MAIN_003.sha (BYTE-IDENTICAL)
- src/md_MAIN_003/md_MAIN_003.c: 0 INCLUDE_ASM left
- func_801834A4: draft .run/P32/t5x/fable/func_801834A4.c (fable agent, agent MATCH re-verified by coordinator rtu_match in the real TU)
- one build for the same-TU batch: make build BINARY=ov_SC03_105 -j8 rc 0; sha1 d305ff6da199b52d0d44023766643a8b661ed524 == config/check.ov_SC03_105.sha (BYTE-IDENTICAL)
- src/ov_SC03_105/ov_SC03_105_jr_80181C84.c: 2 INCLUDE_ASM left
- pinned since S79 as "mflo destination $t0 vs $a2 (REGALLOC-PERM), pinning regresses to 79"; 5 attempts 51->20->14->8->2 +
permuter_ils null (S80); T4 re-probed DIFF 2; the S83 hand pass measured the variable-reuse form at 80
- mechanism (dumps + source): the mult results are GLOBAL allocnos (mulsi3_internal '=l', mips.md:848; 'pref LO_REG');
global.c parks m3/m8/m13 in LO, reload spills LO ("Spilling reg 65") and retries via retry_global_alloc (reload1.c:3497)
with losers = forbidden_regs, seeded from bad_spill_regs = regs_explicitly_used = regs_ever_live at reload entry
(reload1.c:486, 3651-3660, 709) — the S76 `register s32 e0 __asm__("$6")` made $a2 ever-live, so m13's retry could not
take it and first-fit gave $t0 ("Register 102 now in 8")
- fix: unpin e0; `__asm__("" : "=r"(e1) : "0"(e1))` immediately before `dst[6] = -e1` (e1's qty 6666 -> 8750, allocated
before e0's 7894, holds $v1, e0's first fit drops to $a2) + `__asm__("" : "=r"(p1) : "0"(p1))` between p1's andi and sll
(undoes the global-allocno tie the first launder created; the $t6/$t7/$t8 rotation). Ladder 2 (pinned) -> 37 (unpinned)
-> 15 -> 6 -> MATCH; a byte-identical alternate launders addr1 after its addu
- draft .run/P32/t5x/fable/func_80020DA4.c; report .run/P32/t5x/reports/func_80020DA4.md; coordinator rtu_match MATCH
100/100 in src/800.c; gate_main slate_20DA4: BANKED, 143dbb89 BYTE-IDENTICAL
- main open 4 -> 3 (2 pinned walls + func_80039308 NEAR)
- func_8017DF28: draft .run/P32/t5x/fable/func_8017DF28.c (fable agent, agent MATCH re-verified by coordinator rtu_match in the real TU)
- one build for the same-TU batch: make build BINARY=ov_SC06_022 -j8 rc 0; sha1 2a7d7d4e2fe2f87a83a065686731c7942b3c70ef == config/check.ov_SC06_022.sha (BYTE-IDENTICAL)
- src/ov_SC06_022/ov_SC06_022_jr_8017BEBC.c: 3 INCLUDE_ASM left
- func_800CD674: draft .run/P32/t5x/fable/func_800CD674.c (fable agent, agent MATCH re-verified by coordinator rtu_match in the real TU)
- one build for the same-TU batch: make build BINARY=md_MAIN_009 -j8 rc 0; sha1 d270f695b793b5c03db159b7aabcc066daa87eda == config/check.md_MAIN_009.sha (BYTE-IDENTICAL)
- src/md_MAIN_009/md_MAIN_009.c: 1 INCLUDE_ASM left
- pinned since S79 as "the $a3<->$t0 swap of the two K&R raw-preserve parameter copies is fixed by ARGUMENT POSITION" —
3 attempts + permuter_ils 9->2 (S80); T4 re-probed DIFF 2 in a sandbox TU; the S83 hand pass hypothesised a local pseudo
in $a3 (global.c find_reg pass-1 local_reg_n_refs) — REFUTED by the agent: that check is only in the best_reg<0 retry
- the real mechanism (global.c:587-608 allocno_compare, pri = floor_log2(n_refs)*n_refs/live_length; find_reg hands the
lowest free reg to whichever parm copy is allocated FIRST): every prior draft merged the 0x14/0x28 tails at C level
(goto L_merge + a `kind` temp), deleting one `sb a2` use, so a2-raw had 3 refs/45 (pri 666) and lost $a3 to a1-raw
(3 refs/26, pri 1153). Writing the 3-case `switch (a2)` with the tails DUPLICATED (the original's tails are merged by
jump.c cross-jump AFTER allocation) gives a2-raw 4 refs/41 (floor_log2(4)=2 -> pri 1951) -> allocated first -> $a3; a
block-scope `u8 *p` per case; no pins, no fences, no do-while (dumps .run/c294/dumps_t5x_9DEC_sw2: `73 in 8 75 in 7`)
- the permuter's closeness-2 draft was R63-unsound (`tmp` uninitialised on the default path — its pseudo took $a3)
- draft .run/P32/t5x/fable/func_80039DEC.c; report .run/P32/t5x/reports/func_80039DEC.md; coordinator rtu_match MATCH 74/74 in
src/800_c.c (the no-proto TU decl from commit:3953 admits the K&R definition); gate_main slate_39DEC: BANKED, 143dbb89 BYTE-IDENTICAL
- main open 5 -> 4 (3 pinned walls + func_80039308 NEAR)
- pinned since S79 as "move_movables splices hoisted invariants after preheader flow code, so off's init cannot follow arg1's
hoisted sign-extend from C" — 4 prior attempts + S79 Sonnet (64→3) + permuter_ils null (S80); T4 re-probed DIFF 3 in a
sandbox TU; the S83 hand pass measured the explicit promotion at 18 and stopped
- the Fable agent read the .loop dump: with `a1v = arg1;` written BEFORE `off = 0;` the extend IS emitted first (T1 of the
hand-pass NOTES) — the 18 was a CASCADE: removing the two extend insns from the body dropped the loop's insn_count 59→57,
flipping loop.c:1631's desirability test (threshold 58 ≥ 57) so the D_800C6DD0 address got hoisted (+2 preheader insns and a
register cascade). Nine `__asm__("")` pads instead of seven restore insn_count 59 → "not desirable" → the target's preheader
tail `sll/sra $a1; move $t0,$zero`. Kept: the `$7` pin on i (a hard reg is not a biv, loop.c:3572) and the [][1] table type
- draft .run/P32/t5x/fable/func_800391D4.c; report .run/P32/t5x/reports/func_800391D4.md; coordinator rtu_match MATCH 75/75 in
src/800_c.c; gate_main slate_391D4: BANKED, 143dbb89f34491258bbc27810d0a12ec8b43a8dd BYTE-IDENTICAL (.run/P32/t4b/gate/gate_391D4.log)
- main open 6 -> 5 (4 pinned walls + func_80039308 NEAR)
- the two TU-side declaration walls of the pinned main rows (§500-I); needed so the func_80039DEC / func_800391D4 drafts can be
verified and gated in the REAL TU (T4b hand-crack pass, Drew's directive)
- arbiter: make extract BINARY=main && make build BINARY=main -j8 → EXIT 0/0, sha1 143dbb89f34491258bbc27810d0a12ec8b43a8dd
(.run/P32/t4b/plumb2_result.log). NOTE: gate_main --assert-baseline --allow-dirty RESTORES the working tree's TUs before
building (its GREEN measured the committed tree, not the edit) — use the in-tree extract+build for an uncommitted TU edit
- seed: the Opus NEAR-6 draft (.run/P32/t3/opus/func_8001BC6C.c; §500-C REGALLOC-PERM $v0<->$v1 across the six OT-chain insns,
local-alloc qty_compare one span unit). permuter_ils 8x150s -j3 --klass REGALLOC: cycles 6/7/8 = 6, 5, 1 (output-1-1)
- R63 read of the "1": three mutations — (a) `idx` computed AFTER `color`, (b) an early dead `tag = (a1 << 8) | k;` before
k's assignment, (c) `(D_800B9A02 & 0xFFu) << 14` — and (c) turns the target's `lhu` into an `lbu` (semantically WRONG:
the masked score rewards it; second witness after S80). (a)+(b) alone = leaf MATCH 69/69; (a) alone 8, (b) alone 21
- well-defined re-spelling: `k = 0; tag = (a1 << 8) | k;` at the top (I1) MATCHES; k-initialised-first (15), tag=a1<<8 (19),
tag=a1 (8), tag=(a1<<8)|K (20), tag=0 (8), tag-then-k (8) all regress — the lever is the early BIRTH of the tag/k pseudos
(§47 live-length: qty_compare = floor_log2(n_refs)·n_refs·size/(death−birth)), documented in the source comment
- rtu_match MATCH 69/69 in src/800.c; gate_main slate_main3: "slate 1 -> 1 compatible … BANKED 1 of 1 … 143dbb89 BYTE-IDENTICAL",
EXIT 0 (.run/P32/t3s3/gate/gate_main3.log); main open 7 -> 6 (5 pinned walls + func_80039308 NEAR 17)
- func_800CD674's ILS plateaued at the SAME $a3<->$t1 pair (output-2-1 = 2 rows, no drift) — ledgered with its cost (R41)
- variants kept under .run/P32/t3s3/p1bc6c/ (the 11 spellings measured)
- func_800CD520: draft .run/P32/t3/haiku/func_800CD520.c (haiku agent, agent MATCH re-verified by coordinator rtu_match in the real TU)
- one build for the same-TU batch: make build BINARY=md_MAIN_009 -j8 rc 0; sha1 d270f695b793b5c03db159b7aabcc066daa87eda == config/check.md_MAIN_009.sha (BYTE-IDENTICAL)
- src/md_MAIN_009/md_MAIN_009.c: 2 INCLUDE_ASM left
- func_801CBB80: draft .run/P32/t3/haiku/func_801CBB80.c (haiku agent, agent MATCH re-verified by coordinator rtu_match in the real TU)
- one build for the same-TU batch: make build BINARY=md_SC03_056 -j8 rc 0; sha1 bc768a6b7baa911e0a0cb9175b33550851d6c1eb == config/check.md_SC03_056.sha (BYTE-IDENTICAL)
- src/md_SC03_056/md_SC03_056.c: 0 INCLUDE_ASM left
- func_801F0048: draft .run/P32/t3/haiku/func_801F0048.c (haiku agent, agent MATCH re-verified by coordinator rtu_match in the real TU)
- func_801F00C8: draft .run/P32/t3/haiku/func_801F00C8.c (haiku agent, agent MATCH re-verified by coordinator rtu_match in the real TU)
- one build for the same-TU batch: make build BINARY=md_SC03_054 -j8 rc 0; sha1 06bd73dfbdb10748adcbac7093ead5d76131206a == config/check.md_SC03_054.sha (BYTE-IDENTICAL)
- src/md_SC03_054/md_SC03_054.c: 0 INCLUDE_ASM left
- func_800CD3B8: draft .run/P32/t3/haiku/func_800CD3B8.c (haiku agent, agent MATCH re-verified by coordinator rtu_match in the real TU)
- func_800CD408: draft .run/P32/t3/haiku/func_800CD408.c (haiku agent, agent MATCH re-verified by coordinator rtu_match in the real TU)
- func_800CD464: draft .run/P32/t3/haiku/func_800CD464.c (haiku agent, agent MATCH re-verified by coordinator rtu_match in the real TU)
- func_800CD4C8: draft .run/P32/t3/haiku/func_800CD4C8.c (haiku agent, agent MATCH re-verified by coordinator rtu_match in the real TU)
- func_800CD558: draft .run/P32/t3/haiku/func_800CD558.c (haiku agent, agent MATCH re-verified by coordinator rtu_match in the real TU)
- func_800CD5B8: draft .run/P32/t3/haiku/func_800CD5B8.c (haiku agent, agent MATCH re-verified by coordinator rtu_match in the real TU)
- func_800CD614: draft .run/P32/t3/haiku/func_800CD614.c (haiku agent, agent MATCH re-verified by coordinator rtu_match in the real TU)
- one build for the same-TU batch: make build BINARY=md_MAIN_009 -j8 rc 0; sha1 d270f695b793b5c03db159b7aabcc066daa87eda == config/check.md_MAIN_009.sha (BYTE-IDENTICAL)
- src/md_MAIN_009/md_MAIN_009.c: 3 INCLUDE_ASM left
- func_800CF220: draft .run/P32/t3/haiku/func_800CF220.c (haiku agent, agent MATCH re-verified by coordinator rtu_match in the real TU)
- one build for the same-TU batch: make build BINARY=md_MAIN_007 -j8 rc 0; sha1 2ff702b605ab5cfc18474c464c4c07e5f8ffd48c == config/check.md_MAIN_007.sha (BYTE-IDENTICAL)
- src/md_MAIN_007/md_MAIN_007.c: 2 INCLUDE_ASM left
- the first five verdicts of the 17-row Haiku launch (10:57 MDT, one Agent-tool subagent per function, prompts
.run/P32/t3s3/prompts/<fn>.txt); drafts .run/P32/t3/haiku/<fn>.c; each agent-reported MATCH re-verified by the
coordinator with rtu_match in the real TU (.run/P32/t3s3/verify3/); verbatim grep 0; one build for the same-TU
batch: make build -j8 rc 0; sha1 2ff702b605ab5cfc18474c464c4c07e5f8ffd48c == config/check.md_MAIN_007.sha
- func_800CEFF8 (13) came from the ov_SC02_005:0x801865d0 twin route; the other four are the module's
func_800167F0(k)&0xFFFF -> D_800D1374++ shape, ~45-50k tokens each
- md_MAIN_007 stubs 8 -> 3 (func_800CF220 MATCH pending, func_800CF408 NEAR 49, func_800CF6D0 NEAR 137)
- drafts .run/P32/t3/haiku/<fn>.c, each rtu_match MATCH in the real TU twice (S82 + this session, after the
byte-neutral func_800CF3B0 decl commit commit:3939); one build for the same-TU batch; make build -j8 rc 0;
sha1 2ff702b605ab5cfc18474c464c4c07e5f8ffd48c == config/check.md_MAIN_007.sha; stubs 14 -> 8
- two integration classes the per-draft rtu_match is BLIND to (it splices one draft at a time):
(1) same-TU drafts spelling one global differently — func_800CEEFC `extern s16 D_800B99E8` (file scope) vs
func_800CEF94 block-scope `extern u16 D_800B99E8` -> `conflicting types` only once both are spliced; the
file-scope decl became u16 (func_800CEEFC only stores zero, so the sign is inert there; the u16 load in
func_800CEF94 is the byte-bearing one)
(2) §304 self-defining rodata — func_800CF068's stub .s was the ONLY owner of `dlabel D_800CEDFC`
(".asciz C:\TIMPACK\OPDEMO0.PAT"); banking the body deleted the definition -> `undefined reference to
D_800CEDFC` at LINK (compile-only rtu_match cannot see it). Fix: `const char D_800CEDFC[] = "..."` at file
scope at the extern's position (directly after INCLUDE_RODATA D_800CEDF8, so the island order 0x0/0x4 holds
under the §303 derive stage) + a (void *) cast at the func_8001AA98 call
- closers (cookbook §500-B): func_800CF148's block-scope redecl of func_800CF3B0 now agrees with the TU's no-proto
decl; func_800CF2BC post-increment passes the old counter; func_800CEEFC/func_800CEF94 goto shape +
`(result << 16) == 0`; func_800CF068 hand-drafted from the md_MAIN_008:0x800cee44 twin's shape (remap refused,
reloc 6≠7); func_800CF3B0 leaf-exact 22/22 admitted by the decl fix
- the S77 law: fix the TU by a byte-neutral plumbing commit BEFORE any gate. The asm returns s32 in $v0 and takes no
arguments; the TU's `extern void func_800CF3B0(void *a0, void *a1, void *a2);` (line 91) refused the leaf-exact
22/22 draft (`conflicting types`, a §376/§495 def-side declaration wall — the Haiku FAIL row)
- the no-proto spelling keeps the BANKED 3-arg caller func_800CF390 legal in C89 and admits the `s32 (void)` definition
- make build -j8 rc 0; sha1 2ff702b605ab5cfc18474c464c4c07e5f8ffd48c == config/check.md_MAIN_007.sha (BYTE-IDENTICAL)
- Opus draft (.run/P32/t3/opus/func_801EF6D8.c): 12-arm dispatcher on *(u16*)(a0+0x34) with a 7-arm sub-state-machine
on D_801F1480 duplicated in outer cases 6–11. Idiom 1: `2($sN)` off a lui/addiu-materialised base = a POINTER LOCAL
(`p = &D_801F1480; p[0]/p[1]`), placed BEFORE the switch although the address computation appears after the load
(42 of the 44-ins gap). Idiom 2: a constant-arm ternary consumed directly as a call ARGUMENT lays the third arm in
its own block + j; the if/else-if STATEMENT chain reproduces the target (cookbook §500-B). 85/85 relocations in order
- carve route: jtbl_carve --probe REFUSED the tail carve (the seven tables jtbl_801EF46C..jtbl_801EF53C sit in the
§154-A leading island at file 0x4..0xF0) and named §260; §303 supersedes it for md_* modules — the Makefile's
`jtbl_rodata_pads --derive md_SC03_054` stage produced the spec 0,0t1,0t1,0t1,0t1,0t1,0 at build time; NO yaml /
overlays.mk change (R60 untouched), no isolation (the T1c md_MAIN_034 precedent)
- rtu_match MATCH 604/604 in the real TU (this session); make build -j8 rc 0;
sha1 06bd73dfbdb10748adcbac7093ead5d76131206a == config/check.md_SC03_054.sha; 2 stubs left (func_801F0048, func_801F00C8)
- gate_main .run/P32/t3s3/gate/slate_main2.json --apply: "slate 2 -> 2 compatible, 0 dropped"; clean EXE rebuild
(extract + build) -> "BANKED 2 main functions -- 143dbb89f34491258bbc27810d0a12ec8b43a8dd BYTE-IDENTICAL", EXIT 0
(.run/P32/t3s3/gate/gate_main2.log)
- func_80015B6C (src/800.c, Opus .run/P32/t3/opus/func_80015B6C.c): both journal walls fell — the "$v0/$v1 swap" was an
artefact of the s32 wh[3] frame-slot hack; the corner-copy wall is cse.c canon_reg (make_regs_eqv keeps the FIRST
register canonical) -> a barrier on the SOURCE variable `__asm__("" : "=r"(x) : "0"(x))`; four empty volatile fences
partition block 2 into five phases at zero cost; the 0xE1000200 trailer lui hoist = reuse the $6-pinned tag variable
- func_8002FDE8 (src/800_b_2.c, Opus .run/P32/t3/opus/func_8002FDE8.c): the "regalloc-priority wall" at 35 was the ARRAY
spelling of D_800A46D2 — the block-scope SCALAR `extern s16 D_800A46D2;` (as same-TU func_8002FF0C/func_800301C8) gives
35 -> 3; third `return 1` inside the == -1 arm; the §47 live-length slider COMPUTED from -dl -dg (one fence where the
constant is live and `data` dead); `one = 1;` and `i4 = idx * 4;` as separate statements
- both rtu_match MATCH in the real TU (S82 re-verification); cookbook §500-B carries the closers
- main: 12 -> 7 open (5 pinned walls + 2 NEAR)
- Sonnet draft (.run/P32/t3/sonnet/func_801EF7E4.c): §339's redundant-default test is the switch tell; combined case
labels `case 0: case 3:` place the shared body FIRST, while two textually-duplicated bodies relying on cross_jump
land it LAST next to the epilogue regardless of source order (cross-jump placement is not steerable from C, §500-B)
- rtu_match MATCH 72/72 in the real TU (this session); make build -j8 rc 0;
sha1 c0848f308342e499e2bd8c2db86f6225a29e1592 == config/check.md_SC03_053.sha
- src/md_SC03_053/md_SC03_053.c has 0 INCLUDE_ASM left — md_SC03_053 reaches 100% C
- Sonnet draft (.run/P32/t3/sonnet/func_801EF734.c) after the Haiku FAIL at 47: register-pin the actor pointer
($16, like sibling func_801EF624) and write the shared func_80178CBC(s0, &D_xxx) call LITERALLY in each of three
uniform if / else if / else arms with no early return; cross_jump merges the three jal+epilogue tails and lands
move a0,s0 in each arm's delay slot
- Haiku's plateau was a register-COALESCING failure (early-return if + separate nested if/else → $s0 AND $s1 for one
value: spurious move, extra sw/lw, frame 32 vs 24), not the missing merge it reported (cookbook §500-B)
- rtu_match MATCH 44/44 in the real TU (this session, .run/P32/t3s3/verify/); make build -j8 rc 0;
sha1 c0848f308342e499e2bd8c2db86f6225a29e1592 == config/check.md_SC03_053.sha
- fleet baseline before the bank: make check-all 218 passed / 0 failed of 218, EXIT 0 (.run/P32/t3s3/r22_check.log)
- gcc-2.7.2 runs local_alloc (single-block pseudos) BEFORE global_alloc (multi-block pseudos): the three BE-16
hi-bytes are ONE function-scope variable reused across blocks -> global_alloc's $a1 bank, cannot self-coalesce
with the block-local shift dest (the target's `sll $v1,$a1,8` tell) — and its longer live range fixed the p[8]/p[7]
sched1 hoist for free. The prior NEAR-11 drafts pinned hi=$5 at one site only.
- plus an in-place compound on a block temp (u32 t = hi<<8; t |= p[11]) to tie the or to the shift (§219 family), and
ONE pin register u32 len asm("$6") to rotate p/len (all 24 declaration orders inert, as this TU's func_80035270 notes)
- MIDI MThd header parser; no relocations. rtu_match MATCH 74/74 (coordinator-verified); gate_main 1/1 BANKED
- harvest: "multi-block variable = global_alloc bank" — a shift whose dest differs from its $aN source means a
function-scope variable reused across blocks; no statement order reaches it from a per-site temp
- the 11-18 plateau had two mutually-exclusive halves under (A & 0xFF000000) | (B & 0xFFFFFF): preheader hoist order
of the two masks vs &otab[idx], and the $t3/$t4 pairing of the mask register and the slot pointer. store_field ->
store_fixed_bit_field expands the RHS bitfield extract BEFORE the destination read, which fixes loop.c's movable
order [&otab[idx]; 0xFFFFFF; 0xFF000000] AND the ior operand roles at once (operand swap alone = 35). Third witness
for §364's -O2 half (func_8001D3FC/func_80021284/func_80023570 in the same TU already use the idiom).
- kept from the S79 90->18 chain (re-measured): the §194-A fence in both arms, `code` split from its base with
compound accumulation, register u32 base __asm__("$3"), and exactly 13 zero-byte fences after pkt = D_800A5E60
(0->15, 8->13, 10/11/12->7, 13->MATCH). Dropped as now inert: the m24 $11 and e1 $4 pins.
- the S80 permuter waypoint (closeness 11) was semantically UNSOUND (m24 sunk into one arm) and was not used (R63).
- rtu_match MATCH 281/281 (coordinator-verified); gate_main --apply 1/1, main byte-identical
Drew T