# LinuxCNC Test Porting Tracker

## Purpose

This file tracks the continuing work to validate this simulation port against
LinuxCNC behavior by using LinuxCNC's own source files and test assets.

Hard rule: CNC semantics must come directly from LinuxCNC source. Project-owned
code may provide build logic, runtime shims, filesystem adapters, C ABI, SDK,
browser UI, and test runners, but must not reimplement interpreter, remap, tool,
parameter, kinematics, planner, or machine-control behavior.

## Fixed Validation Gates

Run these checks as the baseline for every substantial porting step:

```bash
wasm-port/tools/verify_upstream_baseline.sh
wasm-port/tools/verify_vendor_sync.sh
wasm-port/tests/native/verify_native_probes.sh
wasm-port/tests/native/verify_nc_files.sh
wasm-port/tests/wasm/node/verify_ini_wasm.sh
wasm-port/tests/wasm/node/verify_interp_wasm.sh
wasm-port/tests/wasm/node/verify_sim_configs_wasm.sh
wasm-port/tests/wasm/node/verify_nc_files_wasm.sh
wasm-port/tests/wasm/node/verify_tp_wasm.sh
wasm-port/tests/opfs/node/verify_file_service.sh
wasm-port/tests/browser/verify_ini_panel_browser.sh
wasm-port/tests/browser/verify_interp_browser.sh
wasm-port/tests/host/verify_host_smokes.sh
```

## Status Legend

| Status | Meaning |
| --- | --- |
| Done | Native, WASM, browser, docs, and source-sync validation are complete for the current scope. |
| In progress | Test assets or runners are present, but coverage still needs extension or verification. |
| Planned | The item is selected for future work. |
| Blocked | The item needs missing LinuxCNC source, runtime boundary work, or upstream baseline clarification. |

## Continuing Steps

| Step | Status | Tracking notes |
| --- | --- | --- |
| Lock LinuxCNC upstream baseline | Done | Baseline commit is recorded in `wasm-port/tools/upstream-baseline.txt`; keep `docs/scope-and-baseline.md` synchronized when it changes. |
| Verify vendored source byte identity | Done | `tools/verify_vendor_sync.sh` must pass for every file in `tools/source-manifest.txt`. |
| Reject standalone CNC semantics | Done | `tools/verify_no_standalone_cnc_semantics.sh` guards project-owned `Interp::...` definitions outside documented runtime-edge stubs. |
| Maintain source reuse map | Done | Current sim-config, remap, interpreter, kinematics, TP, user-M, tool, named-parameter, and OPFS runtime boundaries are recorded in `docs/source-reuse-map.md`; keep updating it whenever LinuxCNC source, test assets, or runtime boundaries are added. |
| Maintain compatibility validation notes | Done | Current native, Node WASM, browser, OPFS, and host aggregate checks are recorded in `docs/compatibility-validation.md`; keep updating it whenever a validation command or fixture class is added. |
| Maintain sim-config coverage matrix | Done | `docs/sim-configs-coverage-matrix.md` now maps all current `verify_sim_configs.sh` records to program class, native result, current Layer 3/4 coverage, and blocked/class-coverage notes. The native harness emits `class-summary.tsv` and `path-matrix.tsv`, and the Node inventory runner checks generated/tracked path sets plus tracked class/native-status/expected-failure/blocked fields against native outputs before execution. Future changes should update the matrix only with a matching regenerated native inventory. |
| Document validation layers | Done | `docs/compatibility-validation.md` now records Layer 1 `nc_files` basic smoke, Layer 2 `configs/sim` native strict harness, Layer 3 standalone native runtime probes, and Layer 4 WASM Node/browser representative smokes with entry commands, current results, expected boundaries, and the no-LinuxCNC-semantics rule. |
| Build LinuxCNC test inventory | In progress | `linuxcnc/tests/remap` has been inventoried by dependency class; the first broader `linuxcnc/tests` pass now records full-process, HAL/realtime, linuxcncrsh, Python-binding, and external-component families in the blocked table. |
| Prefer pure interpreter tests first | In progress | Continue with tests that can run through `Interp::open()`, `read()`, and `execute()` without realtime hardware or GUI. |
| Add upstream-output comparison | In progress | Use upstream `../linuxcnc/bin/rs274` or original `test.sh` output where practical, then compare against native/WASM/browser output. |
| Promote tests through three layers | In progress | Add each selected test first to native harnesses, then WASM Node, then browser smoke where meaningful. |
| Record blocked tests | In progress | First broader family-level blocked batch is recorded below; continue expanding it as each `linuxcnc/tests` family is inspected. |
| Add aggregate smoke coverage | Done | `tests/host/verify_host_smokes.sh` now runs stable Node WASM, sim-config representative WASM, sim-config Node inventory, `nc_files` WASM, OPFS, and browser smoke checks with shared builds. Current run passed with `host_wasm_opfs_browser_smokes=ok`. |
| Add `linuxcnc/nc_files` basic examples | Done | `tests/native/verify_nc_files.sh` now runs the basic/example subset of upstream `linuxcnc/nc_files` through LinuxCNC `bin/rs274`; current native baseline is 107 total, 101 pass, 6 expected context/entry-point edges, 0 unexpected failures. Exploratory `--all` inventory is 247 total, 219 pass, 28 expected context/entry-point edges, 0 unexpected failures. A representative vendored subset now passes Node WASM and browser execution through LinuxCNC-backed `Interp::open()`/`read()`/`execute()`, with `3D_Chips.ngc` using an INI-declared tool-table context for its upstream `T1 M6` line. |

## Current Review Boundaries

Use these batches when reviewing or splitting the current uncommitted work.

| Batch | Scope | Files |
| --- | --- | --- |
| A | `run_step` status output and UI/Node/browser assertions. | `wasm-port/runtime/core/linuxcnc_wrap/linuxcnc_interp_minimal_harness.cpp`, `wasm-port/runtime/core/linuxcnc_wrap/linuxcnc_interp_minimal_runtime.cpp`, `wasm-port/runtime/core/linuxcnc_wrap/linuxcnc_interp_wasm.cpp`, `wasm-port/runtime/core/linuxcnc_wrap/linuxcnc_runtime_state.hh`, `wasm-port/tests/wasm/node/verify_interp_wasm.mjs`, `wasm-port/tests/browser/interp_smoke.html`, `wasm-port/tests/fixtures/canon/arc_semantics.events`. |
| B | `nc_files` representative smoke and `3D_Chips.ngc` tool-table context. | `wasm-port/tests/native/verify_native_probes.sh`, `wasm-port/tests/wasm/node/verify_interp_wasm.mjs`, `wasm-port/tests/browser/interp_smoke.html`, `wasm-port/tools/source-manifest.txt`, vendored `wasm-port/vendor/linuxcnc/nc_files/3D_Chips.ngc`, `arcspiral.ngc`, `factorial.ngc`, `hole-circle.ngc`, and `m6demo.ngc`. |
| C | Selected upstream `tests/interp/*` and `tests/ccomp/*` fixture intake. | `wasm-port/tests/native/verify_native_probes.sh`, `wasm-port/tests/wasm/node/verify_interp_wasm.mjs`, `wasm-port/tests/browser/interp_smoke.html`, `wasm-port/tools/extract_sources.sh`, `wasm-port/tools/source-manifest.txt`, vendored `wasm-port/vendor/linuxcnc/tests/interp/...`, and vendored `wasm-port/vendor/linuxcnc/tests/ccomp/...` files listed in `tools/source-manifest.txt`. |
| D | Interpreter regression coverage for G92 parameter persistence, tool tables, G10/G52/G71/G72/G76, rotation, INI parameters, M19, M98/M99, subroutine lookup, sequence numbers, nested-sub errors, and ABORT hot comments. | `wasm-port/runtime/core/linuxcnc_wrap/linuxcnc_interp_minimal_harness.cpp`, `wasm-port/runtime/core/linuxcnc_wrap/linuxcnc_interp_minimal_runtime.cpp`, `wasm-port/runtime/core/linuxcnc_wrap/linuxcnc_interp_wasm.cpp`, `wasm-port/tests/native/verify_native_probes.sh`, `wasm-port/tests/wasm/node/verify_interp_wasm.mjs`, `wasm-port/tests/browser/interp_smoke.html`, and the corresponding vendored upstream fixture files under `wasm-port/vendor/linuxcnc/tests/interp/`. |
| E | Generic INI-context staging helper and Node/browser synthetic coverage. | `wasm-port/runtime/sdk/src/sim-config-staging.js`, `wasm-port/runtime/sdk/src/index.js`, `wasm-port/runtime/sdk/README.md`, `wasm-port/tests/wasm/node/verify_sim_configs_wasm.mjs`, `wasm-port/tests/browser/interp_smoke.html`. |
| F | Validation docs, source reuse map, tracker updates, native probe build/source-sync glue. | `wasm-port/docs/compatibility-validation.md`, `wasm-port/docs/drift-report.md`, `wasm-port/docs/linuxcnc-test-porting-tracker.md`, `wasm-port/docs/source-reuse-map.md`, `wasm-port/tools/build_native_probes.sh`, `wasm-port/tools/extract_sources.sh`, `wasm-port/tools/source-manifest.txt`, `wasm-port/tools/verify_vendor_sync.sh`. |

Vendored files in the current workset must stay byte-identical to upstream and
covered by both `wasm-port/tools/source-manifest.txt` and
`wasm-port/tools/verify_vendor_sync.sh`. The current untracked vendor groups
are `wasm-port/vendor/linuxcnc/tests/ccomp/`, selected
`wasm-port/vendor/linuxcnc/tests/interp/bad/*.ngc`, and selected upstream
directories under `wasm-port/vendor/linuxcnc/tests/interp/` including
`cam-nisley`, `crazy-paths`, `g10`, `g52`, `g71-*`, `g72-*`, `g76`, `good`,
`inside-corners`, `inverse-time-with-comp`, and selected `m98m99` cases.

## LinuxCNC Test Asset Queue

| LinuxCNC test path | Status | Current target | Notes |
| --- | --- | --- | --- |
| `nc_files` basic/example programs | Done | Native, WASM Node, browser | Native coverage is tracked by `wasm-port/tests/native/verify_nc_files.sh`; complete programs execute strictly, macro/library files are wrapped with temporary `M2` for load/parse validation, and six known LinuxCNC-native context edges are classified explicitly. `--all` also inventories probe/plasmac/NURBS files and currently classifies all 28 non-passing files as expected runtime-context or entry-point edges. The representative vendored WASM/browser subset covers `3D_Chips.ngc`, `arcspiral.ngc`, `hole-circle.ngc`, `factorial.ngc`, and `m6demo.ngc` through LinuxCNC-backed file execution, with `3D_Chips.ngc` staged through `runFileWithIni()` and an INI-declared `tool.tbl` instead of being judged without its required tool context. |
| `tests/remap/duplicate-o-word` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/remap/duplicate-o-word`; validates duplicate O-word behavior through vendored LinuxCNC remap/O-word/file execution paths. |
| `tests/remap/fail/args.0` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/remap/fail/args.0`; validates required `P`/`Q` remap arguments when both are present through vendored LinuxCNC remap argument handling. |
| `tests/remap/fail/args.1` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/remap/fail/args.1`; validates LinuxCNC missing-`Q` remap error text and upstream-style continue-after-error flow. |
| `tests/remap/fail/args.2` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/remap/fail/args.2`; validates LinuxCNC missing-`P,Q` remap error text and upstream-style continue-after-error flow. |
| `tests/remap/fail/body-ngc` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/remap/fail/body-ngc`; validates LinuxCNC NGC remap body failure text and remap level restoration after continue-on-error execution. |
| `tests/remap/m30-interaction` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/remap/m30-interaction`; validates LinuxCNC remap/M30 interaction through vendored interpreter paths. |
| `tests/remap/nested-remaps-oword` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/remap/nested-remaps-oword`; validates nested NGC remaps through vendored LinuxCNC O-word dispatch. |
| `tests/remap/posargs.0` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/remap/posargs.0`; validates LinuxCNC positional remap arguments and `OWORD_NARGS` through vendored interpreter paths. |
| `tests/remap/sequencing` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/remap/sequencing`; validates LinuxCNC G/M remap execution ordering through vendored interpreter paths. |
| `tests/remap/remap-io` NGC-only branch | Done | Native, WASM Node, browser | Vendored `test-ngc.ini` plus `io_*.ngc` subroutines validate LinuxCNC NGC remaps for M62-M68 and M66 immediate input through vendored `Interp::parse_remap()` and `Interp::execute()`; the standalone boundary only stages inputs and captures canonical events. |
| `tests/interp/do-while-break` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/do-while-break`; validates LinuxCNC O-word do/while/break flow through vendored `Interp::open()`, `read()`, and `execute()` paths. |
| `tests/interp/oword-bug315` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/oword-bug315`; validates LinuxCNC O-word break-out-of-subroutine behavior through vendored file execution paths. |
| `tests/interp/oword-bug315-p2` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/oword-bug315-p2`; validates LinuxCNC dynamic O-word subroutine call selection through vendored file execution paths. |
| `tests/interp/exists` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/exists`; validates LinuxCNC `EXISTS[]` parameter handling through vendored file execution paths. |
| `tests/interp/return-value` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/return-value`; validates LinuxCNC O-word return-value and `#<_value>` behavior through vendored file execution paths. |
| `tests/interp/subs-follow-main` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/subs-follow-main`; validates LinuxCNC subroutines after main program text through vendored file execution paths. |
| `tests/interp/fractional-linenumbers` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/fractional-linenumbers`; validates LinuxCNC fractional line-number parsing through vendored file execution paths. |
| `tests/interp/cam-nisley` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/cam-nisley`; validates the upstream storm-door latch cam toolpath through `Interp::open()`, `read()`, and `execute()` with upstream `test.tbl` staged through an INI-declared tool table. Native, WASM Node, and browser checks also assert that bare execution without that tool-table context fails at the upstream `T1 M6` lookup. |
| `tests/interp/namedparam-bug424` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/namedparam-bug424`; validates LinuxCNC named-parameter parsing regression behavior through vendored file execution paths. |
| `tests/interp/flowsnake` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/flowsnake`; validates LinuxCNC recursive O-word subroutine execution, expression evaluation, and comment argument handling through a pure file-execution fractal toolpath. |
| `tests/interp/inside-corners` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/inside-corners`; validates LinuxCNC cutter-compensation geometry through concave corners, convex corners, and tangencies across XY and ZX plane file execution. |
| `tests/interp/inverse-time-with-comp` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/inverse-time-with-comp`; validates LinuxCNC inverse-time feed (`G93`), units-per-minute feed (`G94`), and cutter compensation interaction across uncompensated, right-compensated, and left-compensated subprogram calls. |
| `tests/ccomp` selected standalone cases | Done | Native, WASM Node, browser | Vendored `lathe-comp`, `mill-g90g91g92`, `mill-line-arc-entry`, and `mill-zchanges` under `wasm-port/vendor/linuxcnc/tests/ccomp`; validates standalone LinuxCNC cutter-compensation file execution with upstream tool tables staged through LinuxCNC `tooldata_load()` and `Interp::load_tool_table()`, with the standalone minimal interpreter startup now aligned to LinuxCNC's default incremental IJK mode (`G91.1`). |
| `tests/interp/bad` selected file errors | Done | Native, WASM Node, browser | Vendored selected upstream files under `wasm-port/vendor/linuxcnc/tests/interp/bad`; validates LinuxCNC file-execution error text for canned-cycle A-axis rejection, center-format arc radius mismatch rejection, cutter-compensation arc-exit/gouging rejection, malformed `EXISTS[]` parameter expressions, nested subroutine definitions, zero-feed G1, missing arc center/radius words, and probe motion without axes. |
| `tests/interp/good` selected arc tolerance cases | Done | Native, WASM Node, browser | Vendored selected upstream files under `wasm-port/vendor/linuxcnc/tests/interp/good`; validates LinuxCNC center-format arc tolerance acceptance across small/medium/big inch and metric cases through `ARC_FEED` canonical output and successful program end. |
| `tests/interp/g6164` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/g6164`; validates LinuxCNC `G61`/`G64` path-control and naive-cam tolerance canonical output through vendored file execution paths. |
| `tests/interp/g72-facing` and `tests/interp/g72-missing-iteration` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/g72-facing` and `wasm-port/vendor/linuxcnc/tests/interp/g72-missing-iteration`; validates LinuxCNC G72 lathe facing canned-cycle iteration behavior through vendored file execution paths, canonical `STRAIGHT_FEED` endpoints, and successful program end without timeout. |
| `tests/interp/g71-*` selected lathe canned-cycle cases | Done | Native, WASM Node, browser | Vendored `g71-endless-loop`, `g71-endless-loop2`, `g71-endless-loop_2`, and `g71-with-g70`; validates LinuxCNC G71 roughing and G70 finishing canned-cycle regressions through vendored file execution paths, canonical feed/arc endpoints, and successful program end without timeout. |
| `tests/interp/g76` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/g76`; validates LinuxCNC G76 lathe threading with upstream `test.tbl` staged through an INI-declared tool table, covering tool change, spindle start, speed-feed sync, threading feed events, and successful program end. |
| `tests/interp/g33.1` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/g33.1`; validates LinuxCNC rigid-tap `G33.1` file execution, spindle start, feed synchronization, and `RIGID_TAP` canonical output through vendored interpreter paths. |
| `tests/interp/g10` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/g10`; validates LinuxCNC `G10 L1/L10/L11/L2/L20`, tool-table updates, tool-length offset application timing, active G5X offset changes, G92 interaction, and XY-rotation behavior through vendored file execution paths with upstream `test.tbl` files staged through LinuxCNC tool-table loading. |
| `tests/interp/g52/g52-g92-interaction` plus G92 startup persistence | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/g52/g52-g92-interaction`; validates LinuxCNC G52/G92 shared offset parameter behavior, `G92.1`/`G92.2`/`G92.3` transitions, and `SET_G92_OFFSET` canonical output through vendored file execution paths. Native, WASM Node, and browser validation also stage a `[RS274NGC]PARAMETER_FILE` and exercise vendored `ini_load()`/`Interp::init()`/`restore_parameters()` startup behavior, including `DISABLE_G92_PERSISTENCE` clearing parameters 5210-5219. |
| `tests/interp/rotation` selected pure interpreter cases | Done | Native, WASM Node, browser | Vendored selected upstream cases under `wasm-port/vendor/linuxcnc/tests/interp/rotation`; validates LinuxCNC machine-coordinate `G53` absolute-position named parameters `#<_abs_x>`, `#<_abs_y>`, and `#<_abs_z>` across G54 offsets, G92 offsets, XY rotation, and inch/millimeter modes, plus rotated-coordinate `G28` and `G53` endpoint behavior through vendored file execution paths. |
| `tests/interp/iniparam` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/iniparam`; validates LinuxCNC `_ini[...]` lookup, missing INI-parameter error text, and continued file execution through vendored file execution paths and `INI_FILE_NAME`. |
| `tests/interp/iniparam-failassign` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/iniparam-failassign`; validates LinuxCNC `_ini[...]` read-only named-parameter assignment rejection through vendored file execution paths and `INI_FILE_NAME`. |
| `tests/interp/m19` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/m19`; validates LinuxCNC `M19` spindle orient canonical events, wait timeout, and `[RS274NGC]ORIENT_OFFSET` handling through vendored file execution paths. |
| `tests/interp/magic_comments/param_format_printing` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/magic_comments/param_format_printing`; validates LinuxCNC `(DEBUG,...)` magic-comment parameter formatting for integer, default float, and explicit precision formats through vendored file execution paths. |
| `tests/interp/m98m99` selected pure interpreter cases | Done | Native, WASM Node, browser | Vendored selected upstream cases under `wasm-port/vendor/linuxcnc/tests/interp/m98m99`; validates LinuxCNC Fanuc-style `M98/M99`, missing-P-word, missing-subprogram, mixed Fanuc/RS274NGC sub-style, `DISABLE_FANUC_STYLE_SUB` INI-gated errors, main-program O-word termination rules, parameter scope, loop counts including `L0`, nested numbered subprograms, subprograms after main program text, leading-zero O-word lookup, named and numbered main programs, and expression-based O-sub/M98 calls through vendored file execution paths. |
| `tests/interp/sub-call-from-sub` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/sub-call-from-sub`; validates LinuxCNC external subroutine calls from another external subroutine through vendored file execution paths and LinuxCNC INI `SUBROUTINE_PATH`. |
| `tests/interp/sequence-number` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/sequence-number`; validates LinuxCNC `#<_line>` reporting in main files and external subroutines through vendored file execution paths and LinuxCNC INI `SUBROUTINE_PATH`. |
| `tests/interp/nested-sub-error` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/nested-sub-error`; validates LinuxCNC nested-subroutine-definition rejection through vendored file execution paths and LinuxCNC INI `SUBROUTINE_PATH`. |
| `tests/interp/nested-sub-in-file-error` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/nested-sub-in-file-error`; validates LinuxCNC rejection of forward seek to a later numbered subroutine in the same external subroutine file through vendored file execution paths and LinuxCNC INI `SUBROUTINE_PATH`. |
| `tests/interp/oword-unwind` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/oword-unwind`; validates LinuxCNC O-word stack unwind after a subroutine error through upstream-style continue-on-error file execution and LinuxCNC INI `SUBROUTINE_PATH`. |
| `tests/interp/abort-hot-comment` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/tests/interp/abort-hot-comment`; validates LinuxCNC `(ABORT,...)` hot-comment parameter expansion for numbered, named, and INI named parameters through vendored file execution paths and `INI_FILE_NAME`. |
| `tests/interp/compile` | Done | Native source probe | Upstream `linuxcnc/tests/interp/compile` is a C++ compile/source test (`use-rs274.cc`), not a runtime `.ngc` interpreter fixture. The current port covers this class through the native `linuxcnc_rs274_compile_probe` object build in `wasm-port/tools/build_native_probes.sh`; do not add it to file-execution intake unless an upstream runtime fixture appears. |
| `configs/sim/axis/foam/foam.ngc` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/configs/sim/axis/foam`; validates LinuxCNC INI-driven `U/V` axis mask handling through `axis_foam.ini` and vendored file execution paths. |
| `configs/sim/axis/geometry/xyzc.ngc` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/configs/sim/axis/geometry`; validates LinuxCNC `USER_M_PATH` registration with the real executable `M110` while process execution remains a deterministic standalone `USER_M_COMMAND` boundary. |
| `configs/sim/axis/external_offsets/*.ngc` M111 demos | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/configs/sim/axis/external_offsets`; validates `dyn_demo.ngc`, `eoffsets.ngc`, `jwp_z.ngc`, and `opa_demo.ngc` with their corresponding INI files, real executable `M111`, shared `eoffset.tbl`, and `opa_demo.ngc`'s `circles.ngc` subroutine while process execution remains a deterministic standalone boundary. |
| `configs/sim/axis/gladevcp/probe.ngc` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/configs/sim/axis/gladevcp`; validates plain INI/tool-table main-program staging through `gladevcp_panel.ini` without treating the GTK panel process as browser runtime. |
| `configs/sim/axis/vismach/melfa-sim/example.ngc` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/configs/sim/axis/vismach/melfa-sim`; validates a robot/Genser-style remap machine representative through real INI, tool table, and M428/M429/M430 remap subroutines while GUI/HAL process launch remains outside the standalone boundary. |
| `configs/sim/axis/vismach/puma/puma_cube.ngc` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/configs/sim/axis/vismach/puma`; validates a PUMA machine-context representative through real INI, tool table, and remap subroutine staging while external GUI/HAL process launch remains outside the standalone boundary. |
| `configs/sim/woodpecker/on_abort.ngc` | Done | Native, WASM Node, browser | Vendored under `wasm-port/vendor/linuxcnc/configs/sim/woodpecker`; validates deterministic `on_abort` file execution through the real machine INI and tool table without expanding browser coverage to unrelated full-process UI flows. |
| More `tests/remap/*` interpreter-only cases | Planned | Native first | Select cases that do not require Python behavior beyond documented runtime-edge stubs unless the required LinuxCNC source path is ported. |
| More `tests/interp/*` interpreter-only cases | Planned | Native first | Select upstream interpreter cases that can run through vendored file execution without Python, HAL, realtime motion, or GUI. |
| `tests/rs274ngc/*` candidates | Planned | Native first | Use upstream `rs274` as the baseline where output is comparable. |
| Tool-table regression assets | Planned | Native and WASM Node | Must call vendored `tooldata_common.cc`; project code may only provide storage callbacks and filesystem boundaries. |
| Kinematics tests | Planned | Native probes first | Add runtime probes only around LinuxCNC kinematics entry points; HAL lifecycle remains a shim boundary. |
| Trajectory-planner tests | Planned | Native then WASM Node | Must call vendored LinuxCNC TP APIs; project code may only seed deterministic status/config state. |

## Per-Test Intake Checklist

Use this checklist when adding each LinuxCNC upstream test:

- Record the upstream test path.
- Copy or extract the original LinuxCNC files into `wasm-port/vendor/linuxcnc/`.
- Add the copied files to the relevant manifest or vendor-sync rule.
- Keep `.ini`, `.ngc`, `expected`, and original support files unchanged.
- Identify the LinuxCNC source files that own the behavior being tested.
- Add native runner coverage that calls vendored LinuxCNC code.
- Add WASM Node coverage through the exported C ABI and SDK filesystem bridge.
- Add browser coverage if the behavior crosses SDK, OPFS, or UI boundaries.
- Compare against upstream LinuxCNC output where practical.
- Update `docs/source-reuse-map.md`.
- Update `docs/compatibility-validation.md`.
- Add any blocked dependency to the blocked-test table below.

## Blocked Test Table

| LinuxCNC test path | Status | Blocking dependency | Next action |
| --- | --- | --- | --- |
| `tests/remap/introspect` | Blocked | Python remap modules and Python interpreter introspection. | Port or expose the required LinuxCNC Python remap runtime boundary before executing. |
| `tests/remap/fail/body-py` | Blocked | Python remap body error path. | Port the LinuxCNC Python remap body boundary before executing. |
| `tests/remap/fail/canon_error` | Blocked | Python prolog plus `emccanon.CANON_ERROR`. | Port LinuxCNC Python prolog and canonical-error boundary before executing. |
| `tests/remap/fail/epilog` | Blocked | Python epilog failure path. | Port LinuxCNC Python epilog boundary before executing. |
| `tests/remap/fail/prolog` | Blocked | Python prolog failure path. | Port LinuxCNC Python prolog boundary before executing. |
| `tests/remap/oword-pycall` | Blocked | Python O-word callable modules plus tool-change path. | Port the LinuxCNC Python O-word call boundary and required tool-change runtime edges. |
| `tests/remap/predefined-named-params` | Blocked | Python predefined named parameters. | Port the LinuxCNC Python named-parameter registration boundary. |
| `tests/remap/remap-io` full process/UI branch | Blocked | Full LinuxCNC process, HAL pins, motion I/O status propagation, and Python UI/test driver. | Keep the full process test upstream-only until those runtime boundaries exist; the NGC-only `test-ngc.ini` subpath is covered separately above. |
| `tests/remap/remap-reentry` | Blocked | Python generator remaps, HAL/motion runtime, and remap reentry. | Port LinuxCNC Python generator remap boundary and motion/HAL synchronization first. |
| `tests/remap/spindle` | Blocked | Python remap body and spindle runtime state. | Port the LinuxCNC Python remap boundary and spindle status adapter. |
| `tests/remap/variable-injection` | Blocked | Python prolog/epilog variable injection. | Port LinuxCNC Python prolog/epilog boundary before executing. |
| `tests/abort/*` | Blocked | Full LinuxCNC task/motion process, abort/stop handling, HAL files, and machine state after interruption. | Keep as upstream process reference until task/motion abort boundaries are available; do not reduce to standalone interpreter execution. |
| `tests/ccomp/early-exit` | Blocked | Full LinuxCNC process and motion-position validation after cutter-compensation early exit. | Use interpreter-only `tests/ccomp/*` cases first; revisit after motion state comparison is available. |
| `tests/classicladder/estop` | Blocked | ClassicLadder component, full LinuxCNC process, HAL files, and UI driver. | Keep as upstream-only reference until ClassicLadder/HAL process boundaries are represented. |
| `tests/halui/*` | Blocked | Full LinuxCNC process with `halui`, postgui HAL files, and UI/test driver interaction. | Establish HALUI/task runtime boundaries before porting. |
| `tests/hard-limits` | Blocked | Full LinuxCNC machine process, HAL limit wiring, and motion limit behavior. | Keep as upstream process reference until motion/HAL limit boundaries exist. |
| `tests/inifile/python_bindings` | Blocked | LinuxCNC Python INI bindings, not just vendored C++ `inifile.cc`. | Add only after a Python binding boundary is intentionally exposed, or keep covered by upstream. |
| `tests/io-startup/*` | Blocked | Full LinuxCNC `io` startup, task process, HAL files, and postgui setup. | Revisit after IO/task startup runtime boundaries are represented. |
| `tests/linuxcncrsh` | Blocked | Full LinuxCNC process plus `linuxcncrsh` socket protocol server. | Keep as upstream integration reference until linuxcncrsh/server boundaries are intentionally ported. |
| `tests/linuxcncrsh-tcp` | Blocked | Full LinuxCNC process plus TCP socket service and network timing. | Keep as upstream integration reference until linuxcncrsh/server boundaries are intentionally ported. |
| `tests/mdi-queue/*` | Blocked | Full LinuxCNC task/MDI queue behavior through linuxcncrsh, tool changes, and queued command synchronization. | Port only after task queue and linuxcncrsh boundaries are available. |
| `tests/motion/*` | Blocked | Full LinuxCNC sim process, HAL pins, linuxcncrsh, halsampler, and realtime motion behavior. | Keep as upstream motion integration reference; prefer standalone TP/kinematics probes for now. |
| `tests/motion-logger/*` | Blocked | Full LinuxCNC process plus motion-logger userspace program and mock-motion HAL setup. | Revisit after motion logging/runtime process boundaries are represented. |
| `tests/halcompile/*` | Blocked | LinuxCNC HAL component build/install flow, often including userspace or realtime component loading. | Keep as build-system/HAL integration reference; do not treat as interpreter semantics. |
| `tests/module-loading/*` | Blocked | HAL realtime module loading and RTAPI lifecycle through `halrun`/`loadrt`. | Covered only by narrow source/native probes today; full HAL module loading remains out of scope. |
| `tests/mb2hal/*` | Blocked | External `mb2hal` userspace component, Modbus I/O behavior, and HAL process wiring. | Keep as external-component integration reference until a host I/O boundary exists. |
| `tests/t0/*` | Blocked | Full LinuxCNC process, linuxcncrsh display, tool table startup, random/nonrandom toolchanger behavior, and HAL files. | Continue validating tool tables through vendored `tooldata_common.cc`; revisit full T0 startup through task/IO boundaries later. |
| `tests/tool-info/*` | Blocked | Full LinuxCNC task/IO startup with HALUI, startup tool state, and random/nonrandom toolchanger process behavior. | Keep tool parsing/formatting in standalone probes; revisit process startup behavior later. |
| `tests/toolchanger/*` | Blocked | Full LinuxCNC tool-change process, MDI/task behavior, IO state, and subroutine/user-M paths. | Continue standalone interpreter/tooldata coverage first; revisit after task/IO tool-change boundaries exist. |
| `tests/trajectory-planner/circular-arcs` | Blocked | Full LinuxCNC sim configs with task, HAL/Tcl files, GUI/display settings, and motion execution logs. | Keep using standalone TP API probes for planner code; full circular-arc machine tests require task/HAL/motion boundaries. |
| `tests/lowlevel/emcmot-error-mpsc` | Blocked | RIP-only build against LinuxCNC motion sources and low-level motion error driver. | Revisit only if low-level motion process test drivers are intentionally ported. |
| `tests/uspace/spawnv-root` | Blocked | Sudo-installed userspace HAL component and `spawnv` root behavior. | Keep upstream-only unless HAL component install/runtime support is added. |
| `configs/sim/*/remap_subs/*.ngc` browser main-program inventory | Blocked | These files are remap/subroutine assets, not standalone browser main-program targets. | Keep validating them through native remap parse/execute paths and explicit five-axis/runtime probes instead of widening browser `runSimConfigProgram()` blindly. |
| `configs/sim/axis/db_demo/base.ngc` Layer 4 inventory | Blocked | `[EMCIO]DB_PROGRAM = ./db_nonran.py` requires LinuxCNC task/tooldata DB process startup, command/reply protocol, and database state behavior, not standalone interpreter file execution. | Keep as `L4-TOOL-DB` until a LinuxCNC-owned tool database runtime boundary exists and proves lookup/update behavior across native and WASM. `blocked-dependency-summary.tsv` records `taskclass.cc`, `tooldata_db.cc`, `tooldata_common.cc`, and `configs/sim/axis/db_demo/db.py` as the owner set plus source-derived `tool_db_protocol_evidence` for the `v2.1` handshake, `g`/`FINI` get-all, and `l`/`u`/`p` notification protocol. |
| `configs/sim/axis/vismach/millturn/example.ngc` Layer 4 inventory | Blocked | The remap execution chain calls external `USER_M_PATH` process codes `M128` and `M129`, with HAL/HALUI/UI process declarations in `millturn.ini`. | Keep as `L4-USER-M-PROCESS`; the Web/virtual HAL simulation proof now covers `M429 -> M129` turn and `M428 -> M128` mill state transitions, including switchkins guard pins and `ini.[xz].*` limit pins in Node and real browser page smoke. Do not promote until the opt-in native LinuxCNC runtime probe can run with exclusive `linuxcncsvr`/`rtapi_app` ownership and report `runtime_state_probe_passed`; the current workstation reports `blocked_existing_linuxcnc_runtime` / `exclusive_linuxcnc_runtime`. `blocked-dependency-summary.tsv` records the `mcodes/M128` and `mcodes/M129` Tcl scripts plus source-derived `user_m_process_effects` for Tcl/HAL runtime use, kinstype guards, and `ini.[xyz]` HAL pin side effects. |
| `configs/sim/gmoccapy/*` Layer 4 full inventory | Blocked | Python remap runtime boundary is present in native LinuxCNC `rs274`, but not yet intentionally exposed for Node/browser full inventory. | Keep native inventory coverage as source-of-truth; add one representative Node/browser class sample only after the Python remap boundary is deliberately designed. Python module and prolog/epilog ownership is inventoried in `blocked-dependency-summary.tsv`; LinuxCNC runtime ownership is recorded as `python_runtime_evidence` in the Python boundary/family summaries. |
| `configs/sim/axis/laser/*` Layer 4 full inventory | Blocked | Python remap runtime boundary is present in native LinuxCNC `rs274`, but not yet intentionally exposed for Node/browser full inventory. | Keep native inventory coverage as source-of-truth; add one representative Node/browser class sample only after the Python remap boundary is deliberately designed. Python module and remap ownership is inventoried in `blocked-dependency-summary.tsv`; LinuxCNC runtime ownership is recorded as `python_runtime_evidence` in the Python boundary/family summaries. |
| `configs/sim/axis/remap/*/nc_files/*.ngc` Layer 4 full inventory | Blocked | Native LinuxCNC `rs274` coverage exists, but these demo main programs depend on Python remaps, Python prolog/epilog callbacks, or Python-backed queue/tool-change handlers. | Keep native inventory coverage as source-of-truth; do not reduce Python remap demos to missing vendored files or browser standalone execution until the Python remap boundary is deliberately designed. Dependency ownership is inventoried in `blocked-dependency-summary.tsv`; LinuxCNC runtime ownership is recorded as `python_runtime_evidence` in the Python boundary/family summaries. |
| `configs/sim/axis/vismach/5axis/table-rotary_spindle-rotary-nutating/demos/*` Layer 4 full inventory | Blocked | Native LinuxCNC `rs274` coverage exists, but the demo family depends on Python remap entry points such as `g682`, `g69_core`, and `g53x_core` that are not yet intentionally exposed for Node/browser inventory. | Keep native inventory coverage as source-of-truth; revisit Layer 4 only after the Python remap boundary is deliberately designed rather than faked in JS. Python and NGC remap dependencies are inventoried in `blocked-dependency-summary.tsv`; LinuxCNC runtime ownership is recorded as `python_runtime_evidence` in the Python boundary/family summaries. |
| `configs/sim/axis/vismach/VMC_toolchange/toolchange.ngc` Layer 4 full inventory | Blocked | Native LinuxCNC `rs274` coverage exists, but the program is the remapped tool-change body for a Python prolog/epilog and full tool-change/HAL process flow. | Keep native inventory coverage as source-of-truth and validate tool-change mechanics through existing standalone interpreter/tooldata probes until task/HAL/tool-change runtime boundaries exist. |
| `configs/sim/axis/vismach/5axis/table-rotary_spindle-rotary-nutating/demos/incremental_repetition_g533.ngc` | Blocked | Preserved upstream demo edge: line uses bare `X/Y/Z` after `G53.6` without an explicit motion G-code in the upstream standalone baseline. | Keep as expected failure in Layer 2 and do not modify G-code or project-owned interpreter semantics to force a pass. |

## Next Work Batch

1. Continue inventorying `linuxcnc/tests/interp/*` for additional pure
   interpreter cases that can run through vendored file execution without full
   task/HAL/motion process state.
2. Keep adding skipped upstream families to the blocked-test table with a
   concrete dependency reason before attempting implementation.
3. Run `wasm-port/tests/browser/verify_interp_browser.sh` and then
   `wasm-port/tests/host/verify_host_smokes.sh` after each stable batch.
