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Drew T
b58fd82068
SS131: `sltiu N` is ground truth in BOTH directions. jtbl_range already EXTENDS a span the dlabel cut short and WARNS when a span is shorter than the bound, but had no clamp for a span too LONG for a NON-ZERO reason — and the trailing trim only removes ZERO words, so ordinary data that spimdisasm ran into the dlabel slipped through and under-filled the piece. Records the reusable FINGERPRINT of an under-fill, because it does not look like codegen: hundreds of 1-byte diffs spread over most of the overlay, ~95% at byte 0 (mod 4) = the low byte of a 16-bit immediate, every one changing by exactly -4. Bucket differing bytes by offset%4 and decode a few words; uniform small deltas in the immediate field mean LAYOUT, not codegen. (Measured: 812 of 853 at pos 0 mod 4, all -4.) The clamp's authorization matches the extension path exactly: unambiguous sltiu bound only, and REFUSE LOUDLY if any surplus word is a plausible code address. This was the single instrument failure that survived SS125's retraction round — the one case where "the tool is broken" was actually true. Now fixed, with the 710-ins behemoth banked.
phase-ends/ — the living record
PhaseEnd_Phase[N].md— written at each phase boundary (format defined inPROJECT_CONTEXT.md). Append-only history: build log, deviations, commit message, rules added, changelog. Never deleted.CURRENT_PHASE.md— the in-phase autonomous log: approved phase plan, per-task checkboxes, current task pointer, blockers. Created at phase start, updated after every task, absorbed into the PhaseEnd file and deleted at phase close. This is the crash/compaction recovery point.- Sessions read
PROJECT_CONTEXT.md, then everyPhaseEnd_*.mdin numeric order, thenCURRENT_PHASE.md(if present) — in that order, every session.