Robert Allan JamesandClaude Sonnet 5
1aca77d55c
input_buffer/input_length/input_pos (include/vm.h:415-417) turned out to be plain per-VM array/scalar fields, not host pointers -- unlike almost every other input-adjacent gap in this suite. vm_parse_word (src/vm.c: 137-160) is a pure whitespace-delimited scan over them, now modelled as forth_parse_word in StarForth_Base.thy (is_ws + dropWhile/takeWhile, faithful to the C's skip-then-copy-with-truncation loop, including that input_pos only advances past a truncated token by what was actually copied, matching the C's `len < max_len - 1` bound exactly). dict_insert_entry (added last session) now takes the entry's name as a parameter instead of hardcoding the empty string. forth_constant_full composes forth_parse_word with dict_insert_entry end-to-end as a worked example: CONSTANT's real order (stack-underflow guard -> pop value -> parse name -> vm_create_word) is modelled in full up to the data-field write, which remains the one still-open gap. The other four entry-half definitions (:/CREATE/VARIABLE/DEFER) take the parsed name as a caller parameter for now rather than repeating the same composition four more times in one pass. Full suite (54 theories) verifies green. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
proof/
Isabelle/HOL theory files providing machine-checkable proofs of determinism and correctness for StarForth. 24 theory files covering all 7 feedback loops, core word categories, and the word-level ACL system.
Running proofs
isabelle build -D proof/
Requires an Isabelle installation. See docs/01-getting-started/DEVELOPER.md.
Theory files
Foundations
| File | Covers |
|---|---|
StarForth_Base.thy |
Base definitions and type system |
StarForth_Correctness.thy |
Overall correctness |
StarForth_Transition.thy |
State transitions |
StarForth_Concurrent.thy |
Concurrency properties |
StarForth_Mutex.thy |
Mutual exclusion |
Physics loops (1–7)
| File | Loop |
|---|---|
StarForth_Loop1_Heat.thy |
Execution heat tracking |
StarForth_Loop2_Window.thy |
Rolling window of truth |
StarForth_Loop3_Decay.thy |
Linear decay |
StarForth_Loop4_Pipeline.thy |
Word transition prediction |
StarForth_Loop5_WinInf.thy |
Window width inference |
StarForth_Loop6_DecayInf.thy |
Decay slope inference |
StarForth_Loop7_Heartrate.thy |
Adaptive heartrate |
Word categories
StarForth_Arithmetic_Words.thy, StarForth_Stack_Words.thy,
StarForth_Logical_Words.thy, StarForth_Memory_Words.thy,
StarForth_Return_Stack_Words.thy, StarForth_Q48_16.thy
ACL system (Phase 6)
| File | Property |
|---|---|
ACL_Pin_Monotone.thy |
Pin is one-way |
ACL_Inherit_Clears_Pin.thy |
Inheritance clears pin |
ACL_TTL_Bounded.thy |
TTL stays within bounds |
ACL_Emergency_Bypass.thy |
Emergency console bypass |
ACL_No_Escalation.thy |
No privilege escalation |
See also
ROOT— Isabelle project manifest- Project root