Files
LithosAnanake/include
Robert Allan JamesandClaude Sonnet 5 2d773ca923 Port DoE trial-summary persistence (doe_region.c) onto the reshuffled branch
Local master had 9 unpushed commits building block-backed DoE persistence on
Artemis's own disk (FABRIC-3.md SXXXV.3/.4/.12, designed and built 2026-09-17,
never pushed) that this branch never inherited after the Tripod/kernel
reshuffle diverged history. Ports the mechanism cleanly onto the current
Hera/Artemis/Hestia shape:

- doe_region.h/.c: growable, CRC-protected trial-summary ring in Artemis's
  top-of-device metadata fence, immediately past log_region.c's own ceiling
  (devblock_from_top 98-102). Same accessor/CRC discipline as log_region.c.
- log_words.c: DOE-PERSIST-TRIAL and DOE-RESUME-COUNT kernel-only FORTH words.
- multiuser-doe.4th: per-ISA tagging (MU-ISA-TAG!) and campaign resume support
  (MU-EXEC-CAMPAIGN now takes a start-idx).
- per-isa-doe.4th (new): RUN-AMD64-CAMPAIGN/RUN-AARCH64-CAMPAIGN/
  RUN-RISCV64-CAMPAIGN entry points, resuming from DOE-RESUME-COUNT.
- extract_doe_region.py (new): host-side reader, CRC-verified, no filesystem
  assumptions -- reads the ring directly off a raw disk image.

Deliberately not ported: the R/LaTeX report-generation pipeline
(analyse_multiuser_doe.R, multiuser_doe_report.tex, build_multiuser_doe_report.sh)
-- not needed to prove persistence works, and unscoped for this pass.

Verified live on all three architectures: clean boot, word_count 530->532,
zero UNKNOWN WORD. amd64 and riscv64 both live-exercised end-to-end (write via
DOE-PERSIST-TRIAL, count via DOE-RESUME-COUNT, clean QEMU exit, then read back
correctly with extract_doe_region.py against the raw disk image -- no host
serial dependency, matching the real bare-metal requirement this campaign is
rehearsing for).

riscv64 finding (not a defect in this port, no fix applied): DOE-PERSIST-TRIAL
failed 3/3 on a first attempt against a fresh disk image with
"virtio_blk: vblk_io timed out". Root cause: disk/artemis.img is a sparse file
(180KB allocated of a 1GB apparent size); the new DOE region (devblock_from_top
98-102) is genuinely virgin territory on a fresh image, and riscv64's slower
TCG emulation missed the existing virtio_blk spin-bound budget (already
documented as fragile, FABRIC-3.md 2026-09-09) on that first cold touch.
Confirmed by isolation: a plain BLOCK/UPDATE at an already-warm LBN succeeded
instantly, the pre-existing LOG-ERROR" (same meta-zone mechanism, an
already-warmed offset range) also succeeded, and a reboot reusing the
now-partially-warmed disk let DOE-PERSIST-TRIAL succeed immediately and
verify correctly on read-back. Pre-existing environmental fragility, not a
logic bug in the ported address computation.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-23 11:01:26 -04:00
..
2026-08-01 07:49:56 -04:00
2026-08-01 07:49:56 -04:00
2026-08-01 07:49:56 -04:00
2026-08-01 07:49:56 -04:00

include/

Public headers for the hosted StarForth VM (src/). Kernel-only headers live under include/starkernel/.

Core VM

  • vm.h — the VM struct and all core types (DictEntry, DictPhysics, stacks, dictionary state); the central header most other files include.
  • vm_api.h — external VM API surface.
  • vm_host.h, vm_debug.h, startup.h, version.h — host integration, debug utilities, startup sequencing, version string.
  • cli.h, repl.h, io.h, log.h — CLI parsing, REPL loop, I/O, logging.
  • word_registry.h — word registration system shared by every src/word_source/*.c file.
  • compudynamics.h — the generic compudynamics module: tuning-word/config lookups (cd_tuning_word(), cd_tuning_vm()) consumed by ssm_jacquard.c.

Memory / blocks

  • memory_management.h, dictionary_management.h — dictionary allocator and search.
  • block_subsystem.h, blkcfg.h, blkio.h, blkio_factory.h — logical→ physical block mapper and pluggable block I/O backends (file/RAM).
  • platform_alloc.h, platform_lock.h, platform_time.h — platform abstraction shims (hosted vs. kernel allocation/locking/timing).

Physics-driven adaptive runtime (7 feedback loops)

  • physics_runtime.h — main physics coordinator.
  • physics_hotwords_cache.h — Loop #1, execution-heat hot-words cache.
  • physics_metadata.h — per-word DictPhysics metadata tracking.
  • physics_pipelining_metrics.h — Loop #4, word-transition prediction.
  • physics_execution_hooks.h — execution instrumentation hook points.
  • rolling_window_of_truth.h, rolling_window_knobs.h — Loop #2 circular execution-history buffer and its tuning knobs.
  • inference_engine.h — Loops #5/#6, window-width and decay-slope statistical inference.
  • dictionary_heat_optimization.h — Loop #1 heat counters.
  • ssm_jacquard.h — L8 Jacquard steady-state mode selector.
  • doe_metrics.h — Design of Experiments (2^7 factorial) metrics.
  • profiler.h — performance profiling hooks.

Arithmetic / codegen

  • q48_16.h — Q48.16 deterministic fixed-point arithmetic (used instead of IEEE-754 float specifically to keep cross-architecture behavior bit-identical).
  • math_portable.h — portable math helpers.
  • arch_detect.h, starforth_config.h — architecture detection and the build-flag fallback-default layer (used when a .c file is compiled by hand without make).
  • vm_asm_opt.h, vm_asm_opt_arm64.h, vm_asm_opt_riscv64.h, vm_inner_interp_asm.h, vm_inner_interp_arm64.h, vm_inner_interp_riscv64.h — per-architecture assembler-optimized inner interpreter (USE_ASM_OPT=1).

See include/starkernel/README.md for the bare-metal kernel headers.