Robert Allan JamesandClaude Sonnet 5
61755fde78
Step 3: one-time artemis_sig_t genesis stamp, written once
kernel_main.c's virtio-blk path confirms Artemis's own disk, so the disk
image is later recognizable generically (repl.c's idle-loop USB-MSC scan,
built in the prior commit) regardless of which bus found it.
Correction made before this ever touched the real disk: the signature's
first design (committed in 29b6789) placed it at a fixed bottom-of-device
forth-block (4, devblock 1) -- copying homeblocks_sig_t's own convention,
which is safe for a raw identity thumbdrive but not for Artemis's own
disk. Artemis's disk is block_subsystem.c's own STFR/v2-formatted volume:
devblock 0 holds that format's header and devblock 1 is the FIRST
DEVBLOCK OF THE LIVE BAM (blk_compute_fresh_geometry(): bam_start = 1).
The original design would have overwritten Artemis's live allocation map
on the very first real boot. Caught via direct cross-reference against
block_subsystem.c before the genesis-stamp call site was ever run against
the real image -- no corruption occurred.
Fixed by moving the header to a fixed offset from the END of the device
instead (ARTEMIS_SIG_DEVBLOCK_FROM_TOP=64), the same top-of-device region
block_subsystem.c's own meta_fence_blocks reservation (128 devblocks)
already carves out for system metadata, and where Zuse's genesis marker/
eligibility list already live -- but computed independently via
blkio_info() rather than through blk_meta_zone_*(), since that accessor
needs an already-attached, format-detected slot, which is exactly the
state pre-attach generic discovery doesn't have yet. Picked well clear of
Zuse's two tenants (devblock_from_top 0 and 1+, open-ended) so the two
subsystems' independent math can never collide.
Also reordered kernel_main.c: rng_init() now runs before the Artemis
virtio-blk block (was after) -- the genesis stamp needs rng_get_bytes()
for disk_uuid, and the original order would have failed the stamp on
every boot.
Verified live: booted amd64 against the real disk/artemis.img twice --
first boot logs "Artemis: genesis signature stamped" (confirmed blank at
the target offset beforehand via a host-side read), second boot on the
now-stamped image logs no re-stamp (idempotent, CRC/read-back verified)
-- both boots and aarch64/riscv64 (against the same now-stamped image)
all still report "Artemis: 22998 data blocks" / "PASS: persist-read"
unchanged, confirming the BAM and data pool were never touched.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EXieurDfDSsDFdnSyusuWo
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.