Robert Allan James
cf205ca04a
editor_words.c: zero tractable words (first such file in this sweep) -- every word routes through the same deferred block-window cache as block_words.c, and EDIT is an interactive stdin/stdout REPL loop, not a single-step transition. format_words.c: 17 of 19 registered words modeled (# and #S deferred, multi-precision division out of scope). Two genuine C findings recorded: (1) DECIMAL/HEX/OCTAL write only the FORTH-visible memory cell at base_addr, never the separate vm->base host-mirror field that number OUTPUT words actually read -- proved formally (decimal_does_not_change_vm_base et al.), so HEX/OCTAL/DECIMAL silently never affect printed output, only parsed input. (2) ? and DUMP cast the popped cell directly to a host pointer and dereference it, bypassing vm_addr_ok entirely -- an out-of-VM-bounds read, not modeled since it isn't a vm->memory access at all. Adds base_addr/hold_addr/hold_pos to vm_state (StarForth_Base.thy), matching the scr_addr/here pattern from earlier files.
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