Adds a one-time boot diagnostic in kernel_main.c, right before sk_repl() is entered: bounded wait for 3 real heartbeat ticks, then prints tick count, TIME-TRUST, and variance. Needed because printing immediately after apic_timer_start() (as first tried) measured 1 tick on amd64 and 0 on riscv64 -- not evidence the heartbeat doesn't work, just that almost no wall time elapses between arming the timer and that point in boot; report it honestly rather than let it stand as a false negative. Verified this session (logs/20260804-001727, -001805, -001850, -001948, -002021): - All three architectures boot to ok>. - Tick count non-zero: amd64 4, riscv64 3, aarch64 3. - riscv64: trust=Q48_ONE exactly, variance=0 -- architecturally invariant counter, as designed. - amd64: dict_hash=0x3d4e1daf289da94f, identical to the pre-item-0.8 baseline (logs/20260803-231322) -- unchanged output, satisfying the GAP-A1 control. - Two consecutive amd64 boots produced the identical dict hash -- reproducible, no wall-clock leakage into patron state. Phase 0 (Substrate) is complete. Punch list §25 item 0.10 complete. Co-Authored-By: Claude Sonnet 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.