diff --git a/wasm-port/docs/compatibility-validation.md b/wasm-port/docs/compatibility-validation.md
index 0444297..bc1d634 100644
--- a/wasm-port/docs/compatibility-validation.md
+++ b/wasm-port/docs/compatibility-validation.md
@@ -75,7 +75,8 @@ The WASM interpreter-core smoke script builds
 vendored LinuxCNC interpreter source set used by the native minimal
 interpreter harness. It loads the module in Node, runs the first WASM
 interpreter fixture group through `Interp::execute()`, and compares emitted
-canonical events with the matching files in `tests/fixtures/canon/`.
+canonical events plus required LinuxCNC `_setup` state readback with the
+matching files in `tests/fixtures/canon/`.
 
 The OPFS host-boundary script validates the JavaScript file-service adapter
 with a Node mock of the browser File System Access handles. It covers nested
@@ -143,7 +144,7 @@ The validation fails if:
 | Harness | Purpose |
 | --- | --- |
 | `tests/wasm/node/verify_ini_wasm.sh` | Validates the browser-facing INI WASM module can be built from vendored LinuxCNC `inifile.cc`, loaded through the JS SDK in Node, and queried through the exported C ABI. |
-| `tests/wasm/node/verify_interp_wasm.sh` | Validates the initial interpreter-core WASM module can be built from vendored LinuxCNC interpreter source, run the first fixture group through `Interp::execute()`, and match the native canonical event fixtures. |
+| `tests/wasm/node/verify_interp_wasm.sh` | Validates the initial interpreter-core WASM module can be built from vendored LinuxCNC interpreter source, run the first fixture group through `Interp::execute()`, and match the native canonical event plus required state readback fixtures. |
 | `tests/opfs/node/verify_file_service.sh` | Validates the host-owned OPFS text-file adapter, path model, session snapshot store, machine file store, and G-code text store used by the browser INI panel without moving file persistence into the WASM core. |
 | `tests/browser/verify_ini_panel_browser.sh` | Validates the INI SDK, WASM module loading, OPFS text-file round trip, generic session snapshot round trip, machine file text round trip, and G-code text round trip in a real browser runtime. |
 | `tests/host/verify_host_smokes.sh` | Runs the current host-side Node, WASM interpreter-core, OPFS, and browser smoke validation with shared WASM builds. |
@@ -192,10 +193,11 @@ Negative fixtures currently cover:
 Current full-core validation is native-only. WASM/SDK validation covers the
 INI parser smoke harness and an initial interpreter-core canonical event smoke
 for `minimal_linear`, `arc_semantics`, `length_units`, `modal_incremental`,
-`plane_selection`, and `coordinate_offsets`. OPFS validation is limited to the
-JavaScript host-boundary adapter plus the INI browser smoke harness. Full
-browser coverage, full SDK coverage, and full machine-session validation remain
-future work.
+`plane_selection`, `coordinate_offsets`, `g53_machine_coordinates`,
+`feed_control_modes`, `position_params`, and `probe_semantics`. OPFS validation
+is limited to the JavaScript host-boundary adapter plus the INI browser smoke
+harness. Full browser coverage, full SDK coverage, and full machine-session
+validation remain future work.
 
 The current fixture expectations validate standalone behavior against both the
 vendored LinuxCNC source path and an upstream `rs274` side-by-side baseline for
diff --git a/wasm-port/runtime/core/linuxcnc_wrap/linuxcnc_interp_wasm.cpp b/wasm-port/runtime/core/linuxcnc_wrap/linuxcnc_interp_wasm.cpp
index d7f233b..41d6dc0 100644
--- a/wasm-port/runtime/core/linuxcnc_wrap/linuxcnc_interp_wasm.cpp
+++ b/wasm-port/runtime/core/linuxcnc_wrap/linuxcnc_interp_wasm.cpp
@@ -146,6 +146,12 @@ char *lcinterp_run_program(const char *program_text)
     for (const auto &event : standalone::canon_events()) {
         output << "canon_event=" << event << "\n";
     }
+    output << "setup.current_x=" << interp._setup.current_x << "\n";
+    output << "setup.current_y=" << interp._setup.current_y << "\n";
+    output << "setup.current_z=" << interp._setup.current_z << "\n";
+    output << "setup.parameter_5420=" << interp._setup.parameters[5420] << "\n";
+    output << "setup.parameter_5421=" << interp._setup.parameters[5421] << "\n";
+    output << "setup.parameter_5422=" << interp._setup.parameters[5422] << "\n";
     return copy_result(output.str());
 }
 
diff --git a/wasm-port/tests/wasm/node/verify_interp_wasm.mjs b/wasm-port/tests/wasm/node/verify_interp_wasm.mjs
index 7f25fa1..bce69cf 100644
--- a/wasm-port/tests/wasm/node/verify_interp_wasm.mjs
+++ b/wasm-port/tests/wasm/node/verify_interp_wasm.mjs
@@ -47,6 +47,10 @@ const fixtureNames = [
   "modal_incremental",
   "plane_selection",
   "coordinate_offsets",
+  "g53_machine_coordinates",
+  "feed_control_modes",
+  "position_params",
+  "probe_semantics",
 ];
 
 for (const fixtureName of fixtureNames) {
@@ -60,16 +64,14 @@ for (const fixtureName of fixtureNames) {
   ).trimEnd();
 
   const output = runProgram(interp, programText);
-  const actualEventSet = new Set(
-    output.split("\n").filter((line) => line.startsWith("canon_event=")),
-  );
-  const expectedEventLines = expectedEvents.split("\n").filter(Boolean);
+  const actualLineSet = new Set(output.split("\n").filter(Boolean));
+  const expectedLines = expectedEvents.split("\n").filter(Boolean);
 
-  for (const expectedEvent of expectedEventLines) {
+  for (const expectedLine of expectedLines) {
     assert.equal(
-      actualEventSet.has(expectedEvent),
+      actualLineSet.has(expectedLine),
       true,
-      `${fixtureName}: ${expectedEvent}`,
+      `${fixtureName}: ${expectedLine}`,
     );
   }
 }