数控系统仿真软件，从linuxcnc移植过来的

结论：新增 coordinate_offsets 文件执行路径专用 WASM/浏览器验证，保留 MDI 路径状态读回，并通过 native、Node WASM、browser 与 host 聚合 smoke 验证。

wasm-port/docs/compatibility-validation.md

@@ -297,6 +297,11 @@ file execution ABI,
 post-execute position parameters differently than the line-by-line MDI smoke;
 both expectations now also pin post-execute modal, override, spindle, mist,
 and flood `_setup` state readback.
+`coordinate_offsets` also uses a dedicated file-path expectation because
+LinuxCNC file execution leaves the post-execute position parameters at the
+file-path reset state while the line-by-line MDI path exposes the active G55
+offset values; both paths pin the post-execute modal, override, spindle, mist,
+and flood `_setup` state.
 `tool_semantics` also pins the post-execute position-parameter and modal,
 override, spindle, mist, and flood `_setup` state after T/M6/G43/G49/M61
 tool behavior.
@@ -397,7 +402,6 @@ Node WASM file-path coverage currently includes:
 - `length_units`
 - `modal_incremental`
 - `plane_selection`
-- `coordinate_offsets`
 - `g53_machine_coordinates`
 - `feed_control_modes`
 - `probe_semantics`
@@ -418,6 +422,7 @@ Node WASM file-path coverage currently includes:
 - `file_open_reset`
 - `percent_file_finish`
 - `oword_subroutine`
+- `coordinate_offsets` through the dedicated `canon_file/` expectation
 - `position_params` through the dedicated `canon_file/` expectation
 - `namedparam_ini_semantics` through the INI-aware file ABI
 - `namedparam_semantics` through the INI-aware file ABI
@@ -498,7 +503,6 @@ Browser interpreter file-path coverage currently includes the same
 - `length_units`
 - `modal_incremental`
 - `plane_selection`
-- `coordinate_offsets`
 - `g53_machine_coordinates`
 - `feed_control_modes`
 - `probe_semantics`
@@ -519,6 +523,7 @@ Browser interpreter file-path coverage currently includes the same
 - `file_open_reset`
 - `percent_file_finish`
 - `oword_subroutine`
+- `coordinate_offsets` through the dedicated `canon_file/` expectation
 - `position_params` through the dedicated `canon_file/` expectation
 - `namedparam_ini_semantics` through the INI-aware file ABI
 - `namedparam_semantics` through the INI-aware file ABI
@@ -538,9 +543,9 @@ canned-cycle, state-tag motion, tool-table setup, and O-word subroutine
 fixtures, plus threading/rigid tap, NURBS dispatch boundaries, and the
 comparable canonical runtime edge and program-end cleanup calls. The
 standalone vendored-source harness, Node WASM smoke, and browser smoke also
-pin `feed_control_modes`, the `position_params` MDI/file-path,
-`tool_semantics`, and `canon_runtime_edges` post-program modal, override,
-spindle, mist, and flood `_setup` state. The same upstream baseline also
+pin `coordinate_offsets` MDI/file-path, `feed_control_modes`, the
+`position_params` MDI/file-path, `tool_semantics`, and `canon_runtime_edges`
+post-program modal, override, spindle, mist, and flood `_setup` state. The same upstream baseline also
 validates the current negative fixture error text and absent canonical-event
 constraints. Fixtures that depend on standalone-only runtime
 adapters, HAL state, upstream `rs274` output gaps such as

wasm-port/docs/drift-report.md

@@ -98,9 +98,9 @@ semantic rewrites:
   fixtures; it also covers threading/rigid tap, NURBS dispatch boundaries, and
   comparable canonical runtime edge and program-end cleanup calls. The
   vendored-source native harness plus Node WASM and browser smokes also pin
-  `feed_control_modes`, the `position_params` MDI/file-path,
-  `tool_semantics`, and `canon_runtime_edges` post-program modal, override,
-  spindle, mist, and flood `_setup` state. It now also checks the negative fixture set
+  `coordinate_offsets` MDI/file-path, `feed_control_modes`, the
+  `position_params` MDI/file-path, `tool_semantics`, and `canon_runtime_edges`
+  post-program modal, override, spindle, mist, and flood `_setup` state. It now also checks the negative fixture set
   against upstream `rs274 -g` for expected error text and absent canonical
   event constraints.
   HAL-backed adapter-heavy fixtures, standalone modal-state assertions, and upstream

wasm-port/tests/browser/interp_smoke.html

@@ -32,6 +32,7 @@
       INTERP_BASELINE_INI_FIXTURE,
       INTERP_BROWSER_FILE_FIXTURES,
       INTERP_BROWSER_MDI_FIXTURES,
+      INTERP_COORDINATE_OFFSETS_FILE_FIXTURE,
       INTERP_ERROR_FIXTURES,
       INTERP_INI_FIXTURE,
       INTERP_POSITION_PARAMS_FILE_FIXTURE,
@@ -253,6 +254,21 @@
         baselineIniExpectedText,
       );
 
+      const coordinateOffsetsText = await fetchText(
+        `../fixtures/gcode/${INTERP_COORDINATE_OFFSETS_FILE_FIXTURE}.ngc`,
+      );
+      const coordinateOffsetsPath = `/work/${INTERP_COORDINATE_OFFSETS_FILE_FIXTURE}.ngc`;
+      interp.writeTextFile(coordinateOffsetsPath, coordinateOffsetsText);
+      verifyExpectedOutput(
+        `${INTERP_COORDINATE_OFFSETS_FILE_FIXTURE}_file`,
+        interp.runFile(coordinateOffsetsPath),
+        (
+          await fetchText(
+            `../fixtures/canon_file/${INTERP_COORDINATE_OFFSETS_FILE_FIXTURE}.events`,
+          )
+        ).trimEnd(),
+      );
+
       const positionParamsText = await fetchText(
         `../fixtures/gcode/${INTERP_POSITION_PARAMS_FILE_FIXTURE}.ngc`,
       );

wasm-port/tests/fixtures/canon/coordinate_offsets.events

@@ -10,3 +10,19 @@ canon_event=SET_G92_OFFSET x=0 y=0 z=0 a=0 b=0 c=0 u=0 v=0 w=0
 canon_event=SET_G5X_OFFSET index=1 x=0 y=0 z=0 a=0 b=0 c=0 u=0 v=0 w=0
 canon_event=SET_G92_OFFSET x=0 y=0 z=0 a=0 b=0 c=0 u=0 v=0 w=0
 canon_event=SET_XY_ROTATION rotation=0
+setup.current_x=0
+setup.current_y=0
+setup.current_z=0
+setup.parameter_5420=-4
+setup.parameter_5421=-5
+setup.parameter_5422=-6
+post_execute.plane=1
+post_execute.distance_mode=0
+post_execute.feed_mode=0
+post_execute.motion_mode=0
+post_execute.origin_index=1
+post_execute.feed_override=0
+post_execute.speed_override_0=0
+post_execute.spindle_turning_0=1
+post_execute.mist=0
+post_execute.flood=0

wasm-port/tests/fixtures/canon_file/coordinate_offsets.events

@@ -0,0 +1,31 @@
+file_open=0
+file_read_count=7
+file_execute_count=6
+canon_event=SELECT_PLANE plane=1
+canon_event=STRAIGHT_TRAVERSE line=1 x=0 y=0 z=0 a=0 b=0 c=0 u=0 v=0 w=0
+canon_event=SET_G5X_OFFSET index=2 x=0 y=0 z=0 a=0 b=0 c=0 u=0 v=0 w=0
+canon_event=SET_G92_OFFSET x=0 y=0 z=0 a=0 b=0 c=0 u=0 v=0 w=0
+canon_event=SET_XY_ROTATION rotation=0
+canon_event=SET_G5X_OFFSET index=2 x=4 y=5 z=6 a=0 b=0 c=0 u=0 v=0 w=0
+canon_event=SET_XY_ROTATION rotation=0
+canon_event=SET_G92_OFFSET x=-14 y=-25 z=-36 a=0 b=0 c=0 u=0 v=0 w=0
+canon_event=SET_G92_OFFSET x=0 y=0 z=0 a=0 b=0 c=0 u=0 v=0 w=0
+canon_event=SET_G5X_OFFSET index=1 x=0 y=0 z=0 a=0 b=0 c=0 u=0 v=0 w=0
+canon_event=SET_G92_OFFSET x=0 y=0 z=0 a=0 b=0 c=0 u=0 v=0 w=0
+canon_event=SET_XY_ROTATION rotation=0
+setup.current_x=0
+setup.current_y=0
+setup.current_z=0
+setup.parameter_5420=0
+setup.parameter_5421=0
+setup.parameter_5422=0
+post_execute.plane=1
+post_execute.distance_mode=0
+post_execute.feed_mode=0
+post_execute.motion_mode=0
+post_execute.origin_index=1
+post_execute.feed_override=0
+post_execute.speed_override_0=0
+post_execute.spindle_turning_0=1
+post_execute.mist=0
+post_execute.flood=0

wasm-port/tests/fixtures/interp-fixture-matrix.mjs

@@ -45,7 +45,6 @@ export const INTERP_FILE_FIXTURES = [
   "length_units",
   "modal_incremental",
   "plane_selection",
-  "coordinate_offsets",
   "g53_machine_coordinates",
   "feed_control_modes",
   "probe_semantics",
@@ -72,4 +71,5 @@ export const INTERP_BROWSER_FILE_FIXTURES = INTERP_FILE_FIXTURES;
 
 export const INTERP_INI_FIXTURE = "namedparam_semantics";
 export const INTERP_BASELINE_INI_FIXTURE = "namedparam_ini_semantics";
+export const INTERP_COORDINATE_OFFSETS_FILE_FIXTURE = "coordinate_offsets";
 export const INTERP_POSITION_PARAMS_FILE_FIXTURE = "position_params";

wasm-port/tests/wasm/node/verify_interp_wasm.mjs

@@ -6,6 +6,7 @@ import assert from "node:assert/strict";
 import { createLinuxCncInterpSdk } from "../../../runtime/sdk/src/index.js";
 import {
   INTERP_BASELINE_INI_FIXTURE,
+  INTERP_COORDINATE_OFFSETS_FILE_FIXTURE,
   INTERP_ERROR_FIXTURES,
   INTERP_FILE_FIXTURES,
   INTERP_INI_FIXTURE,
@@ -262,6 +263,26 @@ verifyExpectedOutput(
   baselineIniExpected,
 );
 
+const coordinateOffsetsFilePath = `/work/${INTERP_COORDINATE_OFFSETS_FILE_FIXTURE}.ngc`;
+interp.writeTextFile(
+  coordinateOffsetsFilePath,
+  readFileSync(
+    resolve(rootDir, `tests/fixtures/gcode/${INTERP_COORDINATE_OFFSETS_FILE_FIXTURE}.ngc`),
+    "utf8",
+  ),
+);
+verifyExpectedOutput(
+  `${INTERP_COORDINATE_OFFSETS_FILE_FIXTURE}_file`,
+  interp.runFile(coordinateOffsetsFilePath),
+  readFileSync(
+    resolve(
+      rootDir,
+      `tests/fixtures/canon_file/${INTERP_COORDINATE_OFFSETS_FILE_FIXTURE}.events`,
+    ),
+    "utf8",
+  ).trimEnd(),
+);
+
 const positionParamsFilePath = "/work/position_params.ngc";
 interp.writeTextFile(
   positionParamsFilePath,