Robert Allan JamesandClaude Opus 5.5
5bc7b4dee7
- New spinlock primitive (spinlock.h/.c): CAS on an owner word (core+1), interrupts masked while any lock is held (state kept in the per-core block, so release order doesn't matter). Recursion, release-not-held, held-at-switch and destroyed-while-held are counted and logged, never silent. Locks are no-ops until the boot core's block is installed (riscv64's monolithic early boot prints before sk_percpu_boot_init()). - Kernel locks in a documented order: hermes, switch, registry, doe, log, console, heap, vmm, pmm. sf_mutex (dict_lock/tuning_lock) uses the same lock word. - Hermes: public functions over *_locked internals; never held across the drain's vm_interpret_kind(); switch notifications after dropping the lock; event payload moved off static storage. Switch table and registry never call out while held (slot/entry copied under the lock). - No lock crosses a switch: checked at context switch (leave, resume) and the idle point. - Probe (removed): every lock balances on all three ISAs; 0 held at switch over 7.5M-51M checks; 0 recursions, 0 bad releases. - Standard sequence on amd64/aarch64/riscv64: hashes and G byte-identical to MC-0a, MINT/WIREBIND/USE ok, conservation true, 0 idle growth. - Block subsystem split out as MC-0b2 (Captain Bob's ruling). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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.