Robert Allan JamesandClaude Sonnet 5
2b1ba031a5
sk_hermes_drain_checkpoint() interprets one queued payload per checkpoint (ruled: one message per checkpoint), reusing sk_vm_at_outermost_interpret() and placed before the switch-signal block in vm_core.c's existing cooperative checkpoint (sk_vm_context_switch() doesn't return until switched back to, so drain must come first or it silently never runs on a switching checkpoint). Amends FABRIC-3.5.md SXLIII.5, caught by advisor() before writing the naive version: "recursive drain is prevented for free" via g_vm_interpret_depth is true but only for same-message re-drain -- it doesn't cover the separate same-VM reentrancy hazard FABRIC-3.md SXX already named for Hera specifically (VMCallState saves rsp/exit_colon/ ecw_nesting only, never input_buffer/input_length/input_pos). Draining calls vm_interpret() on the same vm whose own vm_interpret() call is still paused mid-word at the checkpoint; without saving and restoring the cursor by hand, the enclosing REPL line or LOAD block would be silently truncated. sk_hermes_drain_checkpoint() snapshots and restores input_buffer/input_length/input_pos/mode/error/abort_requested around the call. Not a divergence from the ruling -- cursor preservation is the implementer's own obligation inside the ruled mechanism. Gated behind a system-wide pending-total counter so the common no-message-in-flight case costs one integer read per word dispatch, not a stadium_max_vm_count()-sized queue scan (also flagged by advisor() as a real hot-path cost, not deferred). Verified live on all three architectures: a self-test publishes a real payload to Hermes, proves the depth gate via VM-EXEC-ing an existing harmless colon word into Hermes (genuine nested vm_interpret(), depth 2, must not drain), then drains directly from genuinely-outermost context and confirms exactly one clean drain. dict_hash unmoved and identical across architectures. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
include/
Public headers for the hosted StarForth VM (src/). Kernel-only headers
live under include/starkernel/.
Core VM
vm.h— theVMstruct 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 everysrc/word_source/*.cfile.compudynamics.h— the generic compudynamics module: tuning-word/config lookups (cd_tuning_word(),cd_tuning_vm()) consumed byssm_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-wordDictPhysicsmetadata 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.cfile is compiled by hand withoutmake).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.