Wired into sk_repl_idle()'s USB hotplug attach handler, right between blkio_usb_open_msc() succeeding and blk_subsys_attach_device() -- logs a distinct message per outcome (recognized / blank-or-foreign / bad-version / bad-crc / read-error). The "refuse" half is deliberately not implemented -- there is nothing real to gate yet. blkio_usb.c has no SCSI WRITE(10) support at all, so there is no write path today to refuse; attach currently only enables read-only access, which is also the general-purpose USB block I/O path this repo already relies on for unrelated testing, not exclusively a home-blocks identity workflow. Refusing attach on blank media would break that legitimate use without protecting anything real -- same "don't build ahead of a real caller" reasoning EXPIRE's deferral used. Refuse belongs on the write path once WRITE(10) exists. sig_start_fblock is hardcoded to 0 at the call site -- correct for today's unpartitioned raw test/real media (no GPT parser exists yet), flagged in the comment as the one place that changes once a real GPT-partition-relative lookup exists, isolated from homeblocks_sig.c's own location-agnostic check logic. Verified live: hot-attached disk/usb-thumbdrive-test.img (blank media) through a running amd64 instance's QMP socket (blockdev-add + device_add usb-storage) -- captured exactly 4 real TUR+READ10 BOT cycles (matching the header's 4 forth-block span) followed by the correct "not recognized" warning, then normal attach completing successfully afterward (no regression). Conservation intact, no panic. Clean zero-warning compile and clean boot on all three architectures. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01CXjAPTEKrgY2Mrk25KoLDn
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.