# SilverSight Language Porting Manifest

Lean (`formal/` + `Core/`) is the authoritative source of truth.
All other languages provide independent cross-validation.

## Neon Build Status (ARM64 NixOS, 2026-07-01)

| # | Language | Version | AVM Build | AVM Tests | Q16_16 | Notes |
|---|----------|---------|-----------|-----------|--------|-------|
| 1 | C | gcc 15.2.0 | ✅ | ✅ pass | ✅ | Fixed duplicate symbol bug |
| 2 | C++ | g++ 15.2.0 | ✅ | ✅ pass | ✅ | |
| 3 | Fortran | gfortran 15.2.0 | ✅ | ✅ pass | 🔄 | Rewrote `step` as subroutine |
| 4 | Go | 1.26.4 | ✅ | ✅ pass | — | |
| 5 | Julia | 1.12.6 | ✅ | ✅ 12/12 | ✅ | Fixed `..Q16_16` module import |
| 6 | Octave | 11.3.0 | ✅ | ✅ pass | — | |
| 7 | Python | 3.13.12 | ✅ | syntax OK | ✅ | numpy/sympy blocked on neon |
| 8 | R | 4.6.0 | ✅ | ✅ pass | — | |
| 9 | Rust | 1.96.1 | ✅ | ✅ pass | ✅ | 0 warnings (1 parens nit) |
| 10 | Scala | 3.3.6 | ✅ | ✅ pass | — | 1 warning (unchecked pattern) |
| 11 | Coq/Rocq | 9.0.1 | ✅ | ✅ 5/5 | ✅ | 1 Admitted (Pos_mul_comm) |
| 12 | Lean | 4.30.0-rc2 | ✅ | ✅ 3307 jobs | ✅ | Full `lake build` passes |

## Module Porting Status

| Lean module | R | Julia | Rust | Coq | C | C++ | Fortran | Go | Octave | Scala |
|---|---|---|---|---|---|---|---|---|---|---|
| `CoreFormalism/FixedPoint.lean` (Q16_16) | — | ✅ | ✅ | ✅ | ✅ | ✅ | 🔄 | — | — | — |
| `python/silversight_engine.py` | ✅ | ✅ | ✅ | — | — | — | — | — | — | — |
| `CoreFormalism/BraidCross.lean` | — | — | — | — | — | — | — | — | — | — |
| `CoreFormalism/BraidStrand.lean` | — | — | — | — | — | — | — | — | — | — |
| `CoreFormalism/BraidBracket.lean` | — | — | — | — | — | — | — | — | — | — |
| `CoreFormalism/BraidEigensolid.lean` | — | — | — | — | — | — | — | — | — | — |
| `CoreFormalism/BraidStateN.lean` | — | — | — | — | — | — | — | — | — | — |
| `CoreFormalism/SieveLemmas.lean` | — | — | — | — | — | — | — | — | — | — |
| `CoreFormalism/InteractionGraphSidon.lean` | — | — | — | — | — | — | — | — | — | — |
| `CoreFormalism/SidonSets.lean` | — | — | — | — | — | — | — | — | — | — |
| `CoreFormalism/Q16_16Numerics.lean` | — | — | ✅ | ✅ | — | — | — | — | — | — |
| `SilverSight/PIST/Spectral.lean` | — | — | ✅ | — | — | — | — | — | — | — |
| `SilverSight/PIST/Classify.lean` | — | — | — | — | — | — | — | — | — | — |
| `SilverSight/AVMIsa/Types.lean` (AVM) | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ | ✅ |
| `SilverSight/RRC/Emit.lean` | — | — | — | — | — | — | — | — | — | — |
| `python/nuvmap/projection_engine.py` | ✅ | ✅ | ✅ | — | — | — | — | — | — | — |

Legend:
  —   not started
  🔄  in progress
  ✅  complete, tests pass
  ❌  blocked (see notes)

## Fixes Applied (2026-07-01)

- **C**: Created `avm_types.h` shared header; fixed `test_avm.c` `#include "avm.c"` bug
- **Fortran**: Rewrote `step` function as `step_sub` subroutine; added `avm_clamp64`/`avm_clamp32`; fixed array interface
- **Julia**: Removed `using ..Q16_16` relative import, defined `Q16_SCALE` directly
- **Scala**: Fixed `Load` case pattern match (1 warning remains)
- **Coq**: Updated Rocq 9.0 imports (`Numbers.BinNums` for Z); fixed `compare_cont_cross_spec`, `compare_cont_cross_spec_gt`, `Pos_compare_antisym_lt`, `Pos_compare_antisym_gt`, `Pos_compare_eq_eq`, `compare_cont_never_Eq`, `add_carry_comm`, `Pos_add_comm` — 8 of 9 axioms proven (1 Admitted: `Pos_mul_comm`, blocked on Rocq 9.0 `simpl` reduction for `Pos.mul` on variable first arg)
- **Lean**: Installed via elan on ARM64; `lake build` passes 3307 jobs
- **Rust**: Installed via rustup on ARM64; `cargo test` passes

## Next Work Items

1. Port `CoreFormalism` modules (BraidCross, BraidStrand, etc.) to R, Julia, C, Fortran
2. Port `PIST/*` modules to all languages (currently Rust-only)
3. Port `RRC/Emit.lean` to all languages
4. **Close `Pos_mul_comm` Admitted** in Coq — needs Rocq 9.0-compatible induction pattern
5. Create `tests/test_cross_lang_equivalence.py` for deterministic cross-validation
6. Enable Python test suite (numpy/sympy blocked on neon's NixOS libstdc++)