Claude
c36bd99e1e
proof/FINDINGS.md's Isabelle/HOL word-source sweep (§4) flagged five real defects; this fixes all five and records resolution in that doc: - EXECUTE (system_words.c): cast a popped cell straight to a DictEntry* and called through it with only a null check. Now validates via a new shared vm_dict_entry_ok(), promoted out of starforth_words.c's ENTROPY@/ENTROPY! guard (dictionary_management.c) so EXECUTE gets the same live-entry check. - ? and DUMP (format_words.c): dereferenced the popped cell as a raw host pointer, bypassing vm_addr_ok entirely (out-of-VM-bounds read). Both now go through VM_ADDR/vm_addr_ok/vm_load_cell/vm_ptr like every other memory word (@, `,`, editor_words.c). - TYPE (io_words.c): bounds check computed addr+count in signed 64-bit arithmetic, which can overflow and bypass the check on large operands. Replaced with vm_addr_ok(), which is written to avoid that overflow. - DECIMAL/HEX/OCTAL (format_words.c): wrote only the BASE memory cell, never vm->base, the host-mirror field number-output words actually read via current_base() -- so these words silently affected number parsing but never printing. Now call the existing vm_set_base() (previously only used at boot init), which updates both. vm_get_base/vm_set_base promoted to public declarations in include/vm.h. - ALIGN vs ALLOT/,/C,/2, (dictionary_words.c): disagreed on dictionary growth ceiling (2MB vs 5MB). Investigated which was correct rather than blindly widening: vm_get_block_addr() maps block N to vm->memory + N*BLOCK_SIZE across the full 5MB arena, and USER_BLOCKS_START (block 2048) lines up exactly with DICTIONARY_MEMORY_SIZE -- so ALLOT/,/C,/2, letting `here` grow past 2MB could silently corrupt live block/user data sharing that memory. Tightened ALLOT/,/C,/2, to DICTIONARY_MEMORY_SIZE to match ALIGN. Verified: hosted (amd64) and kernel (amd64, __STARKERNEL__) both build clean with -Wall -Werror; hosted POST suite 1012/1012 passing (0 regressions); manually exercised EXECUTE, ?/DUMP, TYPE, HEX/DECIMAL/OCTAL, and large-ALLOT rejection in the REPL. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014Qf6YcnHgaEtEygq3knx19
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.