Robert Allan JamesandClaude Sonnet 5
51940f49d0
FABRIC-3.md §XXXV.12: closes two real gaps found by walking the disk-to- PDF pipeline end to end. (1) doe_trial_slot_t had no integrity check of its own -- 64 slots share one devblock via a read-modify-write, so a crash mid-write to any slot could silently corrupt its siblings with nothing to catch it. Added an 8-byte CRC (same discipline the control header already had), computed/verified the same way. (2) The campaign itself had no crash-resume -- a reboot always restarted the whole 18-trial loop from index 0 even with good persisted data already on disk. Since the trial matrix is fully deterministic from (seed, n-reps), resuming needs no persisted "which trials ran" state, just a count: DOE-RESUME-COUNT (new kernel primitive, same pattern as DOE-PERSIST-TRIAL) walks the ring counting CRC-valid records for a given ISA; MU-EXEC-CAMPAIGN's signature changes to accept a start-idx and seeds MU-RUN-ID/the DO loop from it. Each RUN-*-CAMPAIGN entry word now calls DOE-RESUME-COUNT before launching. Both block-namespace-checked to fit existing headroom before committing to the design -- no new blocks needed. Real bug caught by the build, not shipped: an implicit compiler-inserted alignment byte before slot_crc silently broke the hand-computed trailing pad size (doe_trial_slot_size_check failed to compile). Fixed with an explicit alignment field, matching log_slot_t's own zero-implicit- padding discipline. extract_doe_region.py now verifies both CRCs with the REAL CRC-64/XZ algorithm from block_subsystem.c's compute_crc64() (ported and verified bit-for-bit against a native C reference this session), replacing §XXXV.11's incorrect guessed implementation. Verified: clean compile on all 3 ISAs (amd64/aarch64/riscv64 -- amd64 verified via isolated build only, not boot, since the real per-ISA campaign is currently live on the only QEMU instance this project's own rule allows), both capsules pass mkcapsule --lint, CRC64 bit-exact via native reference. Live boot-verification explicitly deferred until that campaign finishes or is interrupted -- not claimed as tested when it wasn't. Found (not missed) a real compatibility consequence: the running campaign's data is in the old pre-CRC format, so it reads as "corrupt" under the new extractor and DOE-RESUME-COUNT will resume it from 0, not mid-campaign -- no data loss, cheap redundant re-run of ~1-2 trials. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01BWpNjdwPtFLuVLaAq44L9K
src/
Hosted StarForth VM implementation (compiled by the root Makefile).
Bare-metal kernel sources live in src/starkernel/; FORTH word
implementations in src/word_source/; the test harness in
src/test_runner/; platform shims in src/platform/.
Entry point / interpreter core
main.c— CLI entry point, VM init, DoE mode dispatch.vm.c— interpreter loop, stacks, dictionary state (the central runtime file).vm_api.c— external VM API implementation.vm_bootstrap.c— VM bootstrap initialization.vm_debug.c— debugging utilities.vm_time.c— time-related VM operations.vm_internal.h— internal-only declarations shared across thevm_*.cfiles, not part of the publicinclude/vm_api.hsurface.repl.c— REPL read-eval-print loop.cli.c— CLI argument parsing.io.c— I/O operations.log.c— logging infrastructure.
Memory / dictionary / blocks
memory_management.c— dictionary allocator.dictionary_management.c— dictionary allocation and search.dictionary_heat_optimization.c— Loop #1 execution-heat tracking.word_registry.c— word registration system.block_subsystem.c— logical→physical block mapper.blkio_file.c,blkio_ram.c,blkio_factory.c— block I/O backends (file-backed, RAM-backed) and the factory that selects between them.stack_management.c— stack operations.
Physics-driven adaptive runtime (7 feedback loops)
physics_runtime.c— main physics coordinator.physics_hotwords_cache.c— Loop #1 hot-words caching.physics_metadata.c— per-word metadata tracking.physics_pipelining_metrics.c— Loop #4 word-transition prediction.physics_execution_hooks.c— execution instrumentation.rolling_window_of_truth.c— Loop #2 circular execution-history buffer.inference_engine.c— Loops #5/#6, statistical inference (window-width, decay-slope).ssm_jacquard.c— L8 Jacquard steady-state mode selector; consumescompudynamics.cfor tuning-word/config lookups.compudynamics.c— generic compudynamics module (cd_tuning_word(),cd_tuning_vm()); the score/UCB/reward/weight constants for the L8 adaptive table live here, not inssm_jacquard.c.heartbeat_export.c— heartbeat metrics export (CSV export function itself not yet implemented — seedocs/working/architecture/heartbeat_csv_export.md).
Math / measurement
math_portable.c— portable math functions.profiler.c— performance profiling.doe_metrics.c— Design of Experiments metrics (2^7 factorial).
Any .bak file alongside a .c file here (doe_metrics.c.bak,
inference_engine.c.bak, vm.c.bak) is a pre-edit backup left by a past
maintenance script (see scripts/remove_loop_conditionals.sh), not a
build input.