diff --git a/Makefile b/Makefile
index f933c46..0d102e5 100644
--- a/Makefile
+++ b/Makefile
@@ -117,9 +117,9 @@ regression-named-let-leak: c-build
 prove-ursa-runs: c-build
 	@bash tests/prove-ursa-runs.sh
 
-test-all: test c-test asm-test functional-test portal-rng-cross-test zoe-favorites-test regression-named-let-leak
+test-all: test c-test asm-test functional-test portal-rng-cross-test zoe-favorites-test regression-named-let-leak wasm-test
 	@echo "════════════════════════════════════════════════════"
-	@echo "All tests passed (Python + C + Assembly + functional + portal-rng-cross + zoe-favorites)"
+	@echo "All tests passed (Python + C + Assembly + functional + portal-rng-cross + zoe-favorites + wasm)"
 
 # ─── Benchmarks (reproducible; referenced in whitepaper §6–§11) ───
 
diff --git a/wasm/Makefile b/wasm/Makefile
index fdec50c..763edc3 100644
--- a/wasm/Makefile
+++ b/wasm/Makefile
@@ -87,7 +87,7 @@ C_JIT_STUB := c/jit-stub.c
 
 C_CFLAGS := -O2 -DLUMBDA_WASM -std=c11 -D_POSIX_C_SOURCE=200809L -D_GNU_SOURCE \
             -I$(C_SRC_DIR) -Wno-everything
-C_LDFLAGS := -s WASM=1 -s MODULARIZE=1 -s EXPORT_ES6=0 \
+C_LDFLAGS := -s WASM=1 -s MODULARIZE=1 -s EXPORT_ES6=1 \
              -s EXPORT_NAME=createLumbdaC \
              -s EXPORTED_FUNCTIONS='["_lumbda_wasm_init","_lumbda_wasm_eval","_lumbda_wasm_free_result","_malloc","_free"]' \
              -s EXPORTED_RUNTIME_METHODS='["cwrap","ccall","UTF8ToString","stringToUTF8","lengthBytesUTF8"]' \
@@ -128,9 +128,11 @@ $(DIST)/asm/lumbda-asm.loader.js: asm/lumbda-asm.loader.js
 
 # ─── SPA shell ─────────────────────────────────────────────────────
 
-APP_SRC := $(wildcard app/*.html app/*.css app/*.js app/demos/*.lsp)
+APP_SRC := $(wildcard app/*.html app/*.css app/*.js app/*.mjs app/demos/*.lsp)
 
-app: $(DIST)/index.html $(DIST)/style.css $(DIST)/app.js $(DIST)/runner.js
+app: $(DIST)/index.html $(DIST)/style.css $(DIST)/app.js $(DIST)/runner.js $(DIST)/worker.mjs \
+     $(DIST)/lumbda-logo-green.png $(DIST)/fonts/chunkfive/chunkfive-regular-webfont.woff2 \
+     $(DIST)/fonts/chunkfive/chunkfive-regular-webfont.woff
 
 $(DIST)/%: app/%
 	@mkdir -p $(@D)
diff --git a/wasm/app/app.js b/wasm/app/app.js
index 53dc99c..e1a9abb 100644
--- a/wasm/app/app.js
+++ b/wasm/app/app.js
@@ -1,5 +1,7 @@
 // wasm/app/app.js
-// Single-page app shell — CodeMirror 6 editor + tier runner.
+// Single-page app shell — CodeMirror 6 editor + Web-Worker-backed tier
+// runner. The main thread stays responsive: the live ms counter ticks
+// every animation frame, and Cancel terminates the worker mid-eval.
 
 import { EditorState } from "@codemirror/state";
 import { EditorView, keymap, lineNumbers, drawSelection } from "@codemirror/view";
@@ -8,10 +10,7 @@ import { syntaxHighlighting, defaultHighlightStyle, StreamLanguage } from "@code
 import { scheme } from "@codemirror/legacy-modes/mode/scheme";
 import { oneDark } from "@codemirror/theme-one-dark";
 
-import { runOnTiers } from "./runner.js";
-
-const DEMOS = ["mandelbrot", "fib-ack", "sieve", "self-interp"];
-const TIERS = { python: "Python (Pyodide)", c: "C (emcc)", asm: "Asm (WAT)" };
+const TIERS = { python: "python (pyodide)", c: "c (emcc)", asm: "asm (wat)" };
 
 const demoSources = {};
 
@@ -27,6 +26,7 @@ const editorParent = document.getElementById("editor");
 const outputEl = document.getElementById("output");
 const statusEl = document.getElementById("status");
 const runBtn = document.getElementById("run");
+const cancelBtn = document.getElementById("cancel");
 
 const editorView = new EditorView({
     state: EditorState.create({
@@ -71,51 +71,157 @@ function setStatus(text, cls) {
     statusEl.className = "status" + (cls ? " " + cls : "");
 }
 
-function renderResults(results) {
-    outputEl.innerHTML = "";
-    for (const r of results) {
-        const block = document.createElement("div");
-        block.className = "tier-block";
-        const h = document.createElement("h3");
-        h.textContent = TIERS[r.tier] || r.tier;
-        const t = document.createElement("span");
-        t.className = "time";
-        t.textContent = `  (${r.elapsed.toFixed(0)} ms)`;
-        h.appendChild(t);
-        block.appendChild(h);
-        const pre = document.createElement("pre");
-        if (r.error) {
-            pre.className = "err";
-            pre.textContent = r.error;
-        } else {
-            pre.textContent = r.output;
-        }
-        block.appendChild(pre);
-        outputEl.appendChild(block);
+// ─── Worker plumbing ───────────────────────────────────────────────
+// One worker hosts all tiers. Cancel terminates it; the next eval
+// creates a fresh one. Cached Pyodide / Emscripten state is lost on
+// cancel, which is the price of true cancellation.
+
+const workerState = { worker: null, runId: 0, pending: null };
+
+function spawnWorker() {
+    return new Worker(new URL("./worker.mjs", import.meta.url), { type: "module" });
+}
+
+function ensureWorker() {
+    if (!workerState.worker) workerState.worker = spawnWorker();
+    return workerState.worker;
+}
+
+function runOnTierInWorker(tier, src, onLoading) {
+    return new Promise((resolve, reject) => {
+        const w = ensureWorker();
+        const myRunId = ++workerState.runId;
+        workerState.pending = { runId: myRunId, resolve, reject };
+        const handler = (e) => {
+            if (e.data.runId !== myRunId) return;
+            if (e.data.kind === "loading") {
+                onLoading && onLoading(e.data.tier);
+            } else if (e.data.kind === "done") {
+                w.removeEventListener("message", handler);
+                workerState.pending = null;
+                resolve(e.data.output);
+            } else if (e.data.kind === "error") {
+                w.removeEventListener("message", handler);
+                workerState.pending = null;
+                reject(new Error(e.data.message));
+            }
+        };
+        w.addEventListener("message", handler);
+        w.postMessage({ kind: "eval", runId: myRunId, tier, src });
+    });
+}
+
+function cancelCurrentRun() {
+    if (workerState.worker) {
+        workerState.worker.terminate();
+        workerState.worker = null;
+    }
+    if (workerState.pending) {
+        workerState.pending.reject(new Error("cancelled"));
+        workerState.pending = null;
     }
 }
 
+// ─── Per-tier output block with live ms counter ────────────────────
+
+function makeLiveBlock(tierName) {
+    const block = document.createElement("div");
+    block.className = "tier-block";
+    const h = document.createElement("h3");
+    h.textContent = TIERS[tierName] || tierName;
+    const t = document.createElement("span");
+    t.className = "time";
+    t.textContent = "  loading…";
+    h.appendChild(t);
+    block.appendChild(h);
+    const pre = document.createElement("pre");
+    pre.textContent = "";
+    block.appendChild(pre);
+    outputEl.appendChild(block);
+
+    let raf = 0;
+    let start = 0;
+    function tickerLoop() {
+        const ms = (performance.now() - start) | 0;
+        t.textContent = `  ${ms} ms…`;
+        raf = requestAnimationFrame(tickerLoop);
+    }
+    return {
+        startTimer() { start = performance.now(); tickerLoop(); return start; },
+        stop(elapsedMs) {
+            if (raf) cancelAnimationFrame(raf);
+            t.textContent = `  (${elapsedMs.toFixed(0)} ms)`;
+        },
+        cancelled(elapsedMs) {
+            if (raf) cancelAnimationFrame(raf);
+            t.textContent = `  (cancelled @ ${elapsedMs.toFixed(0)} ms)`;
+        },
+        setOutput(text) { pre.textContent = text; },
+        setError(msg) { pre.className = "err"; pre.textContent = msg; },
+    };
+}
+
+// ─── Run / cancel ──────────────────────────────────────────────────
+
+let inFlight = false;
+
 async function runAll() {
+    if (inFlight) return;
+    inFlight = true;
     runBtn.disabled = true;
-    setStatus("loading tiers…", "busy");
+    cancelBtn.disabled = false;
+    setStatus("running…", "busy");
     outputEl.innerHTML = "";
+    let anyErr = false;
+    let cancelled = false;
     try {
         const tiers = selectedTiers();
         const src = getEditorText();
-        const results = await runOnTiers(tiers, src, (msg) => setStatus(msg, "busy"));
-        renderResults(results);
-        const anyErr = results.some((r) => r.error);
-        setStatus(anyErr ? "completed with errors" : "ok", anyErr ? "err" : "ok");
+        for (const t of tiers) {
+            const live = makeLiveBlock(t);
+            const startMark = live.startTimer();
+            try {
+                const output = await runOnTierInWorker(t, src, (loadingTier) => {
+                    setStatus(`loading ${loadingTier} tier…`, "busy");
+                });
+                setStatus(`running ${t}…`, "busy");
+                const elapsed = performance.now() - startMark;
+                live.stop(elapsed);
+                live.setOutput(output);
+            } catch (e) {
+                const elapsed = performance.now() - startMark;
+                if (e.message === "cancelled") {
+                    live.cancelled(elapsed);
+                    cancelled = true;
+                    break;
+                }
+                live.stop(elapsed);
+                live.setError(e.message || String(e));
+                anyErr = true;
+            }
+        }
+        if (cancelled) setStatus("cancelled", "warn");
+        else setStatus(anyErr ? "completed with errors" : "ok", anyErr ? "err" : "ok");
     } catch (e) {
         setStatus(`fatal: ${e.message}`, "err");
         outputEl.textContent = e.stack || e.message;
     } finally {
+        inFlight = false;
         runBtn.disabled = false;
+        cancelBtn.disabled = true;
     }
 }
 
+function onCancel() {
+    if (!inFlight) return;
+    setStatus("cancelling…", "warn");
+    cancelCurrentRun();
+}
+
 document.querySelectorAll('input[name="program"]').forEach((el) => {
     el.addEventListener("change", loadCurrentDemo);
 });
 runBtn.addEventListener("click", runAll);
+cancelBtn.addEventListener("click", onCancel);
+cancelBtn.disabled = true;
 loadCurrentDemo();
diff --git a/wasm/app/demos/fib-ack.lsp b/wasm/app/demos/fib-ack.lsp
index c8f4511..391dbce 100644
--- a/wasm/app/demos/fib-ack.lsp
+++ b/wasm/app/demos/fib-ack.lsp
@@ -10,8 +10,11 @@
         ((= n 0) (ack (- m 1) 1))
         (else    (ack (- m 1) (ack m (- n 1))))))
 
+; Demo deliberately stays small so Pyodide finishes in a few seconds.
+; (ack 3 4) is 125 but takes minutes via CPython-in-WASM tree-walker;
+; cut down to (ack 3 3) so every tier can run it.
+(display "fib(15) = ")  (print (fib 15))
 (display "fib(20) = ")  (print (fib 20))
-(display "fib(25) = ")  (print (fib 25))
 (display "ack(2,3) = ") (print (ack 2 3))
-(display "ack(3,4) = ") (print (ack 3 4))
+(display "ack(3,3) = ") (print (ack 3 3))
 (print "done")
diff --git a/wasm/app/fonts/chunkfive/chunkfive-regular-webfont.woff b/wasm/app/fonts/chunkfive/chunkfive-regular-webfont.woff
new file mode 100644
index 0000000..54ced00
Binary files /dev/null and b/wasm/app/fonts/chunkfive/chunkfive-regular-webfont.woff differ
diff --git a/wasm/app/fonts/chunkfive/chunkfive-regular-webfont.woff2 b/wasm/app/fonts/chunkfive/chunkfive-regular-webfont.woff2
new file mode 100644
index 0000000..7cecf49
Binary files /dev/null and b/wasm/app/fonts/chunkfive/chunkfive-regular-webfont.woff2 differ
diff --git a/wasm/app/index.html b/wasm/app/index.html
index a7c5f6d..648ccef 100644
--- a/wasm/app/index.html
+++ b/wasm/app/index.html
@@ -3,7 +3,7 @@
 <head>
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1">
-<title>Lumbda playground — Lisp in your browser, three tiers</title>
+<title>lumbda playground — lisp in your browser, three tiers</title>
 <link rel="stylesheet" href="style.css">
 <script type="importmap">
 {
@@ -25,31 +25,36 @@
 </head>
 <body>
 <header>
-  <h1>Lumbda <span class="sub">— Lisp/Scheme in your browser, three tiers in parallel</span></h1>
-  <p class="tag">
-    Same Lisp source. Three implementations compiled to WebAssembly:
-    <strong>Python</strong> (CPython via Pyodide hosting <code>lumbda.py</code>),
-    <strong>C</strong> (Emscripten build of the tree-walker + bytecode VM),
-    <strong>Asm</strong> (hand-written WebAssembly Text format — parallel to <code>asm/lumbda.s</code>).
+  <a class="brand" href="../" aria-label="lumbda home">
+    <img class="logo" src="lumbda-logo-green.png" alt="" aria-hidden="true">
+    <h1 aria-label="lumbda.">lumbda<span class="period" aria-hidden="true">.</span></h1>
+  </a>
+  <p class="tagline">lisp/scheme in your browser, three tiers in parallel</p>
+  <p class="lede">
+    same lisp source. three implementations compiled to webassembly:
+    <strong>python</strong> (cpython via pyodide hosting <code>lumbda.py</code>),
+    <strong>c</strong> (emscripten build of the tree-walker + bytecode vm),
+    <strong>asm</strong> (hand-written webassembly text format &mdash; parallel to <code>asm/lumbda.s</code>).
   </p>
 </header>
 
 <section class="controls">
   <fieldset class="program">
     <legend>demo program</legend>
-    <label><input type="radio" name="program" value="mandelbrot" checked> Mandelbrot</label>
-    <label><input type="radio" name="program" value="fib-ack"> Fib + Ackermann</label>
-    <label><input type="radio" name="program" value="sieve"> Sieve of Eratosthenes</label>
-    <label><input type="radio" name="program" value="self-interp"> Lisp-in-Lisp meta-eval</label>
+    <label><input type="radio" name="program" value="mandelbrot" checked> mandelbrot</label>
+    <label><input type="radio" name="program" value="fib-ack"> fib + ackermann</label>
+    <label><input type="radio" name="program" value="sieve"> sieve of eratosthenes</label>
+    <label><input type="radio" name="program" value="self-interp"> lisp-in-lisp meta-eval</label>
   </fieldset>
   <fieldset class="tier">
     <legend>tier</legend>
-    <label><input type="radio" name="tier" value="python"> Python (Pyodide)</label>
-    <label><input type="radio" name="tier" value="c" checked> C (emcc)</label>
-    <label><input type="radio" name="tier" value="asm"> Asm (WAT)</label>
-    <label><input type="radio" name="tier" value="all"> All three</label>
+    <label><input type="radio" name="tier" value="python"> python (pyodide)</label>
+    <label><input type="radio" name="tier" value="c" checked> c (emcc)</label>
+    <label><input type="radio" name="tier" value="asm"> asm (wat)</label>
+    <label><input type="radio" name="tier" value="all"> all three</label>
   </fieldset>
-  <button id="run">Run</button>
+  <button id="run" class="primary">run</button>
+  <button id="cancel" class="secondary">cancel</button>
   <span id="status" class="status"></span>
 </section>
 
@@ -66,11 +71,11 @@
 
 <footer>
   <p>
-    <strong>Asm tier note:</strong> the WAT implementation ships a minimal Lisp
-    subset (special forms, arithmetic, list ops, recursion) — enough for the
-    four demos above. Symbol lookup is linear; would be MOAD-0001 at scale,
-    documented in <code>asm/lumbda.wat</code>. See
-    <a href="https://lumbda.com">lumbda.com</a>.
+    <strong>asm tier note:</strong> the wat implementation ships a minimal lisp
+    subset (special forms, arithmetic, list ops, recursion) &mdash; enough for the
+    four demos above. symbol lookup is linear; would be moad-0001 at scale,
+    documented in <code>asm/lumbda.wat</code>.
+    see <a href="../">lumbda.</a>
   </p>
 </footer>
 
diff --git a/wasm/app/lumbda-logo-green.png b/wasm/app/lumbda-logo-green.png
new file mode 100644
index 0000000..f7c1df3
Binary files /dev/null and b/wasm/app/lumbda-logo-green.png differ
diff --git a/wasm/app/runner.js b/wasm/app/runner.js
index 5e2b2cf..1b52b7b 100644
--- a/wasm/app/runner.js
+++ b/wasm/app/runner.js
@@ -1,6 +1,7 @@
 // wasm/app/runner.js
-// Tier runner — wraps the three loaders, runs a Lisp source on selected
-// tiers, returns {tier, output, error, elapsed} for each.
+// Tier runner — wraps the three loaders. Exposes a per-tier API so the
+// SPA can iterate, time, and render a live elapsed-ms counter between
+// the eval start and finish.
 
 import { createPythonTier } from "./python/lumbda-py.js";
 import { createCTier } from "./c/lumbda-c.loader.js";
@@ -8,28 +9,17 @@ import { createAsmTier } from "./asm/lumbda-asm.loader.js";
 
 const cache = {};
 
-async function getTier(name, progress) {
+export async function getTier(name, onLoad) {
     if (cache[name]) return cache[name];
-    progress(`loading ${name} tier…`);
-    if (name === "python") cache[name] = await createPythonTier("./python/");
-    else if (name === "c") cache[name] = await createCTier({ baseURL: "./c/" });
-    else if (name === "asm") cache[name] = await createAsmTier({ baseURL: "./asm/" });
+    if (onLoad) onLoad(name);
+    if (name === "python") cache[name] = await createPythonTier();
+    else if (name === "c") cache[name] = await createCTier();
+    else if (name === "asm") cache[name] = await createAsmTier();
     else throw new Error(`unknown tier: ${name}`);
     return cache[name];
 }
 
-export async function runOnTiers(tiers, src, progress) {
-    const results = [];
-    for (const t of tiers) {
-        const start = performance.now();
-        try {
-            const tier = await getTier(t, progress);
-            progress(`running on ${t}…`);
-            const output = await tier.evalLisp(src);
-            results.push({ tier: t, output, error: null, elapsed: performance.now() - start });
-        } catch (e) {
-            results.push({ tier: t, output: "", error: e.message || String(e), elapsed: performance.now() - start });
-        }
-    }
-    return results;
+export async function evalOnTier(name, src, onLoad) {
+    const tier = await getTier(name, onLoad);
+    return tier.evalLisp(src);
 }
diff --git a/wasm/app/style.css b/wasm/app/style.css
index 86a7027..88330d3 100644
--- a/wasm/app/style.css
+++ b/wasm/app/style.css
@@ -1,15 +1,43 @@
-/* Lumbda playground SPA — vanilla CSS, mono terminal aesthetic */
+/* lumbda playground — styled to match lumbda.com homepage.
+ * palette + typography mirror www/style.css.
+ */
+
+@font-face {
+  font-family: 'chunkfive';
+  src: url('fonts/chunkfive/chunkfive-regular-webfont.woff2') format('woff2'),
+       url('fonts/chunkfive/chunkfive-regular-webfont.woff')  format('woff');
+  font-weight: normal;
+  font-style: normal;
+  font-display: swap;
+}
 
 :root {
-  --bg: #0f1115;
-  --fg: #d6dadf;
-  --dim: #8b9099;
-  --accent: #6ee7b7;
-  --warn: #fbbf24;
-  --err: #fb7185;
-  --pane: #15181f;
-  --border: #262a33;
-  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Courier New", monospace;
+  --fg: #1a1a1a;
+  --bg: #fafaf7;
+  --muted: #666;
+  --accent: #227842;            /* single brand green — matches homepage */
+  --green: #227842;
+  --rule: #d4d4d0;
+  --code-bg: #f0ede4;
+  --pane-bg: #ffffff;
+  --busy: #b15a00;
+  --err: #b1262b;
+  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "DejaVu Sans Mono", monospace;
+}
+
+@media (prefers-color-scheme: dark) {
+  :root {
+    --fg: #e8e6e0;
+    --bg: #161613;
+    --muted: #9a9892;
+    --accent: #5ec07a;          /* lightened for contrast on dark bg */
+    --green: #5ec07a;
+    --rule: #3a3a36;
+    --code-bg: #22221f;
+    --pane-bg: #1c1c19;
+    --busy: #e0a050;
+    --err: #f06070;
+  }
 }
 
 * { box-sizing: border-box; }
@@ -19,118 +47,179 @@ html, body {
   background: var(--bg);
   color: var(--fg);
   font-family: var(--mono);
-  font-size: 13px;
-  height: 100%;
+  font-size: 14px;
+  line-height: 1.55;
+  min-height: 100%;
 }
 
+/* ─── Header ────────────────────────────────────────────────────── */
+
 header {
-  padding: 16px 24px 8px;
-  border-bottom: 1px solid var(--border);
+  border-bottom: 1px solid var(--rule);
+  padding: 1.5rem 1.5rem 1rem;
 }
+
+.brand {
+  display: inline-flex;
+  align-items: flex-end;
+  gap: 0.6rem;
+  text-decoration: none;
+  color: inherit;
+}
+.brand:hover .period { transform: translateY(-2px); }
+
+.brand .logo {
+  width: 3.2rem;
+  height: auto;
+  display: block;
+}
+
 header h1 {
-  margin: 0 0 4px;
-  font-size: 18px;
-  font-weight: 600;
-  color: var(--accent);
-}
-header h1 .sub {
-  color: var(--dim);
-  font-weight: 400;
-  font-size: 13px;
-}
-header .tag {
+  font-family: 'chunkfive', Georgia, serif;
+  font-size: 2.4rem;
   margin: 0;
-  color: var(--dim);
-  font-size: 12px;
-  line-height: 1.5;
+  letter-spacing: -0.01em;
+  line-height: 1;
+  font-weight: normal;
+}
+header h1 .period {
+  color: var(--green);
+  display: inline-block;
+  transition: transform 120ms ease;
+}
+
+header .tagline {
+  font-family: 'chunkfive', Georgia, serif;
+  color: var(--muted);
+  margin: 0.4rem 0 0.6rem;
+  font-size: 1rem;
+  letter-spacing: 0.01em;
+}
+
+header .lede {
+  margin: 0;
+  max-width: 70rem;
+  color: var(--fg);
+  font-size: 0.85rem;
+  line-height: 1.55;
+}
+header .lede strong {
+  color: var(--green);
+  font-weight: 600;
 }
 header code {
-  color: var(--warn);
-  font-size: 11px;
-}
-header strong {
-  color: var(--fg);
-  font-weight: 600;
+  background: var(--code-bg);
+  padding: 0 0.2em;
+  border-radius: 2px;
+  font-size: 0.9em;
 }
 
+/* ─── Controls ──────────────────────────────────────────────────── */
+
 .controls {
-  padding: 12px 24px;
-  border-bottom: 1px solid var(--border);
+  padding: 0.75rem 1.5rem;
+  border-bottom: 1px solid var(--rule);
   display: flex;
-  gap: 16px;
+  gap: 1rem;
   align-items: center;
   flex-wrap: wrap;
+  background: var(--bg);
 }
+
 .controls fieldset {
-  border: 1px solid var(--border);
-  border-radius: 4px;
-  padding: 4px 10px 6px;
+  border: 1px solid var(--rule);
+  border-radius: 3px;
+  padding: 3px 10px 5px;
   margin: 0;
+  background: var(--pane-bg);
 }
 .controls fieldset legend {
-  color: var(--dim);
-  font-size: 11px;
-  padding: 0 4px;
+  color: var(--muted);
+  font-size: 0.7rem;
+  padding: 0 0.4em;
   text-transform: uppercase;
-  letter-spacing: 0.06em;
+  letter-spacing: 0.08em;
 }
 .controls label {
-  margin-right: 10px;
+  margin-right: 0.7em;
   cursor: pointer;
   user-select: none;
+  font-size: 0.85em;
+}
+.controls label input {
+  margin-right: 0.3em;
+  accent-color: var(--green);
 }
-.controls label input { margin-right: 4px; }
 
 .controls button {
-  background: var(--accent);
-  color: #0a0c0f;
-  border: none;
-  padding: 6px 16px;
-  border-radius: 4px;
   font-family: var(--mono);
+  font-size: 0.85em;
   font-weight: 600;
-  font-size: 13px;
+  padding: 6px 16px;
+  border-radius: 3px;
   cursor: pointer;
+  border: 1px solid var(--green);
+}
+.controls button.primary {
+  background: var(--green);
+  color: var(--bg);
+}
+.controls button.primary:hover { filter: brightness(1.08); }
+.controls button.primary:disabled {
+  opacity: 0.4; cursor: wait;
+  filter: none;
+}
+.controls button.secondary {
+  background: transparent;
+  color: var(--green);
+}
+.controls button.secondary:hover {
+  background: var(--code-bg);
+}
+.controls button.secondary:disabled {
+  opacity: 0.35; cursor: default;
 }
-.controls button:hover { filter: brightness(1.1); }
-.controls button:disabled { opacity: 0.4; cursor: wait; }
 
 .controls .status {
-  color: var(--dim);
-  font-size: 12px;
+  color: var(--muted);
+  font-size: 0.8em;
   margin-left: auto;
 }
-.controls .status.busy { color: var(--warn); }
+.controls .status.busy { color: var(--busy); }
+.controls .status.warn { color: var(--busy); }
 .controls .status.err  { color: var(--err); }
-.controls .status.ok   { color: var(--accent); }
+.controls .status.ok   { color: var(--green); }
+
+/* ─── Panes ─────────────────────────────────────────────────────── */
 
 .panes {
   display: grid;
   grid-template-columns: 1fr 1fr;
   gap: 1px;
-  background: var(--border);
-  height: calc(100vh - 220px);
+  background: var(--rule);
+  height: calc(100vh - 260px);
   min-height: 360px;
 }
 .pane {
-  background: var(--pane);
-  padding: 8px 12px;
+  background: var(--pane-bg);
+  padding: 0.5rem 0.75rem 0.75rem;
   overflow: hidden;
   display: flex;
   flex-direction: column;
 }
 .pane h2 {
-  margin: 0 0 8px;
-  font-size: 11px;
+  margin: 0 0 0.4rem;
+  font-size: 0.7rem;
   font-weight: 500;
-  color: var(--dim);
+  color: var(--muted);
   text-transform: uppercase;
-  letter-spacing: 0.08em;
+  letter-spacing: 0.1em;
 }
 
 #editor {
   flex: 1;
   overflow: hidden;
+  border-radius: 2px;
 }
 .cm-editor { height: 100%; font-size: 13px; }
 .cm-editor.cm-focused { outline: none; }
@@ -139,45 +228,54 @@ header strong {
   flex: 1;
   white-space: pre;
   overflow: auto;
-  background: #0a0c10;
-  border: 1px solid var(--border);
-  padding: 8px 10px;
+  background: var(--code-bg);
+  border-radius: 2px;
+  padding: 0.6rem 0.8rem;
   font-size: 13px;
   line-height: 1.35;
-  border-radius: 2px;
-}
-#output .tier-block {
-  margin-bottom: 14px;
 }
+#output .tier-block { margin-bottom: 1rem; }
+#output .tier-block:last-child { margin-bottom: 0; }
 #output .tier-block h3 {
-  margin: 0 0 4px;
-  font-size: 11px;
-  color: var(--accent);
+  margin: 0 0 0.25rem;
+  font-size: 0.7rem;
+  color: var(--green);
   text-transform: uppercase;
-  letter-spacing: 0.08em;
+  letter-spacing: 0.1em;
   font-weight: 600;
 }
 #output .tier-block .time {
-  color: var(--dim);
-  font-size: 11px;
+  color: var(--muted);
+  font-size: 0.65rem;
   font-weight: 400;
+  letter-spacing: 0;
+  text-transform: none;
 }
 #output .tier-block pre {
   margin: 0;
   white-space: pre;
+  font-family: var(--mono);
 }
-#output .err { color: var(--err); }
+#output .err {
+  color: var(--err);
+}
+
+/* ─── Footer ────────────────────────────────────────────────────── */
 
 footer {
-  padding: 8px 24px;
-  border-top: 1px solid var(--border);
-  color: var(--dim);
-  font-size: 11px;
+  padding: 0.7rem 1.5rem;
+  border-top: 1px solid var(--rule);
+  color: var(--muted);
+  font-size: 0.75rem;
 }
 footer code {
-  color: var(--warn);
+  background: var(--code-bg);
+  padding: 0 0.2em;
+  border-radius: 2px;
 }
 footer a {
-  color: var(--accent);
+  color: var(--green);
   text-decoration: none;
 }
+footer a:hover { text-decoration: underline; }
+footer strong { color: var(--fg); }
diff --git a/wasm/app/worker.mjs b/wasm/app/worker.mjs
new file mode 100644
index 0000000..62047e6
--- /dev/null
+++ b/wasm/app/worker.mjs
@@ -0,0 +1,19 @@
+// wasm/app/worker.mjs
+// Tier-evaluation Web Worker. Keeps the main thread responsive so the
+// live ms counter actually ticks AND so cancel works (main thread
+// terminates this worker via worker.terminate()).
+
+import { evalOnTier } from "./runner.js";
+
+self.onmessage = async (e) => {
+    const { kind, runId, tier, src } = e.data;
+    if (kind !== "eval") return;
+    try {
+        const output = await evalOnTier(tier, src, (loadingTier) => {
+            self.postMessage({ kind: "loading", runId, tier: loadingTier });
+        });
+        self.postMessage({ kind: "done", runId, output });
+    } catch (err) {
+        self.postMessage({ kind: "error", runId, message: err && err.message ? err.message : String(err) });
+    }
+};
diff --git a/wasm/asm/lumbda-asm.loader.js b/wasm/asm/lumbda-asm.loader.js
index b56a2da..8ff3a24 100644
--- a/wasm/asm/lumbda-asm.loader.js
+++ b/wasm/asm/lumbda-asm.loader.js
@@ -5,8 +5,9 @@
 //   0x10000  output buffer (read after each call)
 //   0x20000  source buffer (write before each call)
 
-async function _bootstrap(baseURL) {
-    const resp = await fetch(baseURL + "lumbda-asm.wasm");
+async function _bootstrap() {
+    const wasmURL = new URL("./lumbda-asm.wasm", import.meta.url).href;
+    const resp = await fetch(wasmURL);
     const bytes = await resp.arrayBuffer();
     const { instance } = await WebAssembly.instantiate(bytes);
     const exp = instance.exports;
@@ -37,9 +38,8 @@ async function _bootstrap(baseURL) {
 // Closure-encapsulated singleton (see lumbda-c.loader.js for rationale).
 export const createAsmTier = (() => {
     let tier = null;
-    return async (opts) => {
-        const baseURL = (opts && opts.baseURL) || "./asm/";
-        if (!tier) tier = await _bootstrap(baseURL);
+    return async () => {
+        if (!tier) tier = await _bootstrap();
         return tier;
     };
 })();
diff --git a/wasm/asm/lumbda.wat b/wasm/asm/lumbda.wat
index 058d3c0..fb841ea 100644
--- a/wasm/asm/lumbda.wat
+++ b/wasm/asm/lumbda.wat
@@ -1176,7 +1176,14 @@
       (loop $loop
         (call $skip_ws)
         (br_if $done (i32.ge_u (global.get $source_ptr) (global.get $source_end)))
-        (local.set $val (call $eval (call $read) (global.get $global_env)))
+        ;; Top-level env = NIL. env_lookup walks env to NIL then falls back
+        ;; to the CURRENT global_env. Closures defined at top-level capture
+        ;; NIL too, so when re-running a demo the new top-level defines are
+        ;; visible without older snapshots shadowing them. Without this,
+        ;; running mandelbrot twice on a cached instance corrupts every
+        ;; other cell because escape-count's captured global_env points
+        ;; into a chain that no longer reflects current bindings.
+        (local.set $val (call $eval (call $read) (global.get $NIL)))
         (br $loop)))
     (if (i32.ne (local.get $val) (global.get $VOID))
       (then
diff --git a/wasm/c/lumbda-c.loader.js b/wasm/c/lumbda-c.loader.js
index 544c94a..5331311 100644
--- a/wasm/c/lumbda-c.loader.js
+++ b/wasm/c/lumbda-c.loader.js
@@ -1,28 +1,22 @@
 // wasm/c/lumbda-c.loader.js
-// C tier loader — Emscripten module wrapper.
+// C tier loader — Emscripten ES module factory.
 //
 // Exports createCTier({ baseURL }) -> Promise<{ evalLisp(src) -> Promise<string> }>.
-//
 // Output capture: Emscripten routes stdout/stderr through Module.print /
 // Module.printErr callbacks. We accumulate per-eval and return joined.
 
-async function _bootstrap(baseURL) {
-    // Pull in the emitted JS glue dynamically. Emscripten with EXPORT_ES6=0
-    // produces a UMD-ish factory script that sets globalThis.createLumbdaC.
-    if (typeof createLumbdaC === "undefined") {
-        await new Promise((resolve, reject) => {
-            const s = document.createElement("script");
-            s.src = baseURL + "lumbda-c.js";
-            s.onload = resolve;
-            s.onerror = () => reject(new Error("lumbda-c.js load failed"));
-            document.head.appendChild(s);
-        });
-    }
+async function _bootstrap() {
+    // Use import.meta.url so paths resolve relative to THIS loader file —
+    // not the caller. Works in both window and Worker contexts because both
+    // have a defined import.meta.url for ES modules.
+    const factoryURL = new URL("./lumbda-c.js", import.meta.url).href;
+    const wasmDir = new URL("./", import.meta.url).href;
+    const { default: createLumbdaC } = await import(/* @vite-ignore */ factoryURL);
 
     let outBuf = [];
     let errBuf = [];
     const module = await createLumbdaC({
-        locateFile: (p) => baseURL + p,
+        locateFile: (p) => wasmDir + p,
         print: (line) => outBuf.push(line),
         printErr: (line) => errBuf.push(line),
     });
@@ -52,14 +46,11 @@ async function _bootstrap(baseURL) {
     };
 }
 
-// Closure-encapsulated singleton: no module-level mutable state. Each
-// caller of createCTier() gets the same booted tier, but the cache lives
-// inside the closure rather than at module scope.
+// Closure-encapsulated singleton (see lumbda-c.loader.js for rationale).
 export const createCTier = (() => {
     let tier = null;
-    return async (opts) => {
-        const baseURL = (opts && opts.baseURL) || "./c/";
-        if (!tier) tier = await _bootstrap(baseURL);
+    return async () => {
+        if (!tier) tier = await _bootstrap();
         return tier;
     };
 })();
diff --git a/wasm/python/lumbda-py.js b/wasm/python/lumbda-py.js
index 95c8011..d31accd 100644
--- a/wasm/python/lumbda-py.js
+++ b/wasm/python/lumbda-py.js
@@ -1,35 +1,27 @@
 // wasm/python/lumbda-py.js
 // Python tier loader — Pyodide (CPython-in-WASM) hosting lumbda.py.
 //
+// ES module form so it works in both window and Web Worker contexts.
 // Exports createPythonTier() -> Promise<{ evalLisp(src) -> Promise<string> }>.
-// Output is whatever the program printed (via display/print/write) plus the
-// final value's printed form if non-void.
 
 const PYODIDE_VERSION = "0.27.2";
 const PYODIDE_INDEX_URL = `https://cdn.jsdelivr.net/pyodide/v${PYODIDE_VERSION}/full/`;
 
-async function _bootstrap(baseURL) {
-    // Load Pyodide loader script (sets globalThis.loadPyodide).
-    if (typeof loadPyodide === "undefined") {
-        await new Promise((resolve, reject) => {
-            const s = document.createElement("script");
-            s.src = PYODIDE_INDEX_URL + "pyodide.js";
-            s.onload = resolve;
-            s.onerror = () => reject(new Error("pyodide.js load failed"));
-            document.head.appendChild(s);
-        });
-    }
-
+async function _bootstrap() {
+    // Dynamic ES-module import works in both window and Worker (module type)
+    // contexts. The CDN ships pyodide.mjs alongside pyodide.js.
+    const { loadPyodide } = await import(PYODIDE_INDEX_URL + "pyodide.mjs");
     const pyodide = await loadPyodide({ indexURL: PYODIDE_INDEX_URL });
 
-    // Pull lumbda.py + stdlib.lsp into Pyodide's virtual FS.
-    const lumbdaSrc = await (await fetch(baseURL + "lumbda.py")).text();
-    const stdlibSrc = await (await fetch(baseURL + "stdlib.lsp")).text();
+    // Pull lumbda.py + stdlib.lsp into Pyodide's virtual FS. Paths resolve
+    // relative to THIS loader (under python/) for both window and Worker.
+    const pyURL = new URL("./lumbda.py", import.meta.url).href;
+    const stdlibURL = new URL("./stdlib.lsp", import.meta.url).href;
+    const lumbdaSrc = await (await fetch(pyURL)).text();
+    const stdlibSrc = await (await fetch(stdlibURL)).text();
     pyodide.FS.writeFile("/home/pyodide/lumbda.py", lumbdaSrc);
     pyodide.FS.writeFile("/home/pyodide/stdlib.lsp", stdlibSrc);
 
-    // Initialize the lumbda environment once. We swap sys.stdout to a StringIO
-    // buffer per eval to capture program output.
     await pyodide.runPythonAsync(`
 import sys, io
 sys.path.insert(0, "/home/pyodide")
@@ -61,10 +53,8 @@ def _lumbda_eval(src):
 
     return {
         async evalLisp(src) {
-            // Pass src in via globals to avoid escaping issues.
             pyodide.globals.set("_src_in", src);
-            const result = await pyodide.runPythonAsync("_lumbda_eval(_src_in)");
-            return result;
+            return await pyodide.runPythonAsync("_lumbda_eval(_src_in)");
         },
     };
 }
@@ -72,9 +62,8 @@ def _lumbda_eval(src):
 // Closure-encapsulated singleton (see lumbda-c.loader.js for rationale).
 export const createPythonTier = (() => {
     let tier = null;
-    return async (baseURL) => {
-        baseURL = baseURL || "./python/";
-        if (!tier) tier = await _bootstrap(baseURL);
+    return async () => {
+        if (!tier) tier = await _bootstrap();
         return tier;
     };
 })();
diff --git a/wasm/tests/functional.mjs b/wasm/tests/functional.mjs
index 84884c2..c082944 100644
--- a/wasm/tests/functional.mjs
+++ b/wasm/tests/functional.mjs
@@ -72,6 +72,7 @@ function nativePython(demoPath) {
     page.on("console", (msg) => {
         if (msg.type() === "error") console.log("  ⟂ console.error:", msg.text());
     });
+    page.on("requestfailed", (req) => console.log("  ⟂ request failed:", req.url(), req.failure()?.errorText));
 
     try {
         await page.goto(baseURL, { waitUntil: "networkidle" });
@@ -123,6 +124,26 @@ function nativePython(demoPath) {
         const blocks = await page.locator("#output .tier-block").count();
         check(`"all three" mode renders 3 tier blocks (got ${blocks})`, blocks === 3);
 
+        // State-leak regression: run mandelbrot twice on the cached asm
+        // instance and assert outputs match. Prior to commit 346b873's
+        // env-NIL fix, every-other cell of row 2+ rendered " " instead
+        // of the expected shade char.
+        await page.locator('input[name="program"][value="mandelbrot"]').check();
+        await page.locator('input[name="tier"][value="asm"]').check();
+        await page.waitForTimeout(150);
+        await page.locator("#run").click();
+        await page.waitForFunction(
+            () => /ok|err/i.test(document.getElementById("status").textContent),
+            null, { timeout: 30000 });
+        const asmRun1 = (await page.locator("#output pre").first().textContent()) || "";
+        await page.locator("#run").click();
+        await page.waitForFunction(
+            () => /ok|err/i.test(document.getElementById("status").textContent),
+            null, { timeout: 30000 });
+        const asmRun2 = (await page.locator("#output pre").first().textContent()) || "";
+        check("asm mandelbrot stable across two consecutive runs",
+            asmRun1 === asmRun2 && asmRun1.length > 100);
+
     } catch (e) {
         state.fail++;
         console.log("  ✗ exception:", e.message);
diff --git a/wasm/tests/integration.mjs b/wasm/tests/integration.mjs
index 941d643..58b17fd 100644
--- a/wasm/tests/integration.mjs
+++ b/wasm/tests/integration.mjs
@@ -42,9 +42,8 @@ async function runAsm(src) {
 }
 
 async function runC(src) {
-    const { createRequire } = await import("node:module");
-    const require = createRequire(import.meta.url);
-    const createLumbdaC = require(path.join(dist, "c", "lumbda-c.js"));
+    const factoryURL = "file://" + path.join(dist, "c", "lumbda-c.js");
+    const createLumbdaC = (await import(factoryURL)).default;
     let out = [];
     const m = await createLumbdaC({
         locateFile: (p) => path.join(dist, "c", p),
diff --git a/www/playground/app.js b/www/playground/app.js
index 53dc99c..e1a9abb 100644
--- a/www/playground/app.js
+++ b/www/playground/app.js
@@ -1,5 +1,7 @@
 // wasm/app/app.js
-// Single-page app shell — CodeMirror 6 editor + tier runner.
+// Single-page app shell — CodeMirror 6 editor + Web-Worker-backed tier
+// runner. The main thread stays responsive: the live ms counter ticks
+// every animation frame, and Cancel terminates the worker mid-eval.
 
 import { EditorState } from "@codemirror/state";
 import { EditorView, keymap, lineNumbers, drawSelection } from "@codemirror/view";
@@ -8,10 +10,7 @@ import { syntaxHighlighting, defaultHighlightStyle, StreamLanguage } from "@code
 import { scheme } from "@codemirror/legacy-modes/mode/scheme";
 import { oneDark } from "@codemirror/theme-one-dark";
 
-import { runOnTiers } from "./runner.js";
-
-const DEMOS = ["mandelbrot", "fib-ack", "sieve", "self-interp"];
-const TIERS = { python: "Python (Pyodide)", c: "C (emcc)", asm: "Asm (WAT)" };
+const TIERS = { python: "python (pyodide)", c: "c (emcc)", asm: "asm (wat)" };
 
 const demoSources = {};
 
@@ -27,6 +26,7 @@ const editorParent = document.getElementById("editor");
 const outputEl = document.getElementById("output");
 const statusEl = document.getElementById("status");
 const runBtn = document.getElementById("run");
+const cancelBtn = document.getElementById("cancel");
 
 const editorView = new EditorView({
     state: EditorState.create({
@@ -71,51 +71,157 @@ function setStatus(text, cls) {
     statusEl.className = "status" + (cls ? " " + cls : "");
 }
 
-function renderResults(results) {
-    outputEl.innerHTML = "";
-    for (const r of results) {
-        const block = document.createElement("div");
-        block.className = "tier-block";
-        const h = document.createElement("h3");
-        h.textContent = TIERS[r.tier] || r.tier;
-        const t = document.createElement("span");
-        t.className = "time";
-        t.textContent = `  (${r.elapsed.toFixed(0)} ms)`;
-        h.appendChild(t);
-        block.appendChild(h);
-        const pre = document.createElement("pre");
-        if (r.error) {
-            pre.className = "err";
-            pre.textContent = r.error;
-        } else {
-            pre.textContent = r.output;
-        }
-        block.appendChild(pre);
-        outputEl.appendChild(block);
+// ─── Worker plumbing ───────────────────────────────────────────────
+// One worker hosts all tiers. Cancel terminates it; the next eval
+// creates a fresh one. Cached Pyodide / Emscripten state is lost on
+// cancel, which is the price of true cancellation.
+
+const workerState = { worker: null, runId: 0, pending: null };
+
+function spawnWorker() {
+    return new Worker(new URL("./worker.mjs", import.meta.url), { type: "module" });
+}
+
+function ensureWorker() {
+    if (!workerState.worker) workerState.worker = spawnWorker();
+    return workerState.worker;
+}
+
+function runOnTierInWorker(tier, src, onLoading) {
+    return new Promise((resolve, reject) => {
+        const w = ensureWorker();
+        const myRunId = ++workerState.runId;
+        workerState.pending = { runId: myRunId, resolve, reject };
+        const handler = (e) => {
+            if (e.data.runId !== myRunId) return;
+            if (e.data.kind === "loading") {
+                onLoading && onLoading(e.data.tier);
+            } else if (e.data.kind === "done") {
+                w.removeEventListener("message", handler);
+                workerState.pending = null;
+                resolve(e.data.output);
+            } else if (e.data.kind === "error") {
+                w.removeEventListener("message", handler);
+                workerState.pending = null;
+                reject(new Error(e.data.message));
+            }
+        };
+        w.addEventListener("message", handler);
+        w.postMessage({ kind: "eval", runId: myRunId, tier, src });
+    });
+}
+
+function cancelCurrentRun() {
+    if (workerState.worker) {
+        workerState.worker.terminate();
+        workerState.worker = null;
+    }
+    if (workerState.pending) {
+        workerState.pending.reject(new Error("cancelled"));
+        workerState.pending = null;
     }
 }
 
+// ─── Per-tier output block with live ms counter ────────────────────
+
+function makeLiveBlock(tierName) {
+    const block = document.createElement("div");
+    block.className = "tier-block";
+    const h = document.createElement("h3");
+    h.textContent = TIERS[tierName] || tierName;
+    const t = document.createElement("span");
+    t.className = "time";
+    t.textContent = "  loading…";
+    h.appendChild(t);
+    block.appendChild(h);
+    const pre = document.createElement("pre");
+    pre.textContent = "";
+    block.appendChild(pre);
+    outputEl.appendChild(block);
+
+    let raf = 0;
+    let start = 0;
+    function tickerLoop() {
+        const ms = (performance.now() - start) | 0;
+        t.textContent = `  ${ms} ms…`;
+        raf = requestAnimationFrame(tickerLoop);
+    }
+    return {
+        startTimer() { start = performance.now(); tickerLoop(); return start; },
+        stop(elapsedMs) {
+            if (raf) cancelAnimationFrame(raf);
+            t.textContent = `  (${elapsedMs.toFixed(0)} ms)`;
+        },
+        cancelled(elapsedMs) {
+            if (raf) cancelAnimationFrame(raf);
+            t.textContent = `  (cancelled @ ${elapsedMs.toFixed(0)} ms)`;
+        },
+        setOutput(text) { pre.textContent = text; },
+        setError(msg) { pre.className = "err"; pre.textContent = msg; },
+    };
+}
+
+// ─── Run / cancel ──────────────────────────────────────────────────
+
+let inFlight = false;
+
 async function runAll() {
+    if (inFlight) return;
+    inFlight = true;
     runBtn.disabled = true;
-    setStatus("loading tiers…", "busy");
+    cancelBtn.disabled = false;
+    setStatus("running…", "busy");
     outputEl.innerHTML = "";
+    let anyErr = false;
+    let cancelled = false;
     try {
         const tiers = selectedTiers();
         const src = getEditorText();
-        const results = await runOnTiers(tiers, src, (msg) => setStatus(msg, "busy"));
-        renderResults(results);
-        const anyErr = results.some((r) => r.error);
-        setStatus(anyErr ? "completed with errors" : "ok", anyErr ? "err" : "ok");
+        for (const t of tiers) {
+            const live = makeLiveBlock(t);
+            const startMark = live.startTimer();
+            try {
+                const output = await runOnTierInWorker(t, src, (loadingTier) => {
+                    setStatus(`loading ${loadingTier} tier…`, "busy");
+                });
+                setStatus(`running ${t}…`, "busy");
+                const elapsed = performance.now() - startMark;
+                live.stop(elapsed);
+                live.setOutput(output);
+            } catch (e) {
+                const elapsed = performance.now() - startMark;
+                if (e.message === "cancelled") {
+                    live.cancelled(elapsed);
+                    cancelled = true;
+                    break;
+                }
+                live.stop(elapsed);
+                live.setError(e.message || String(e));
+                anyErr = true;
+            }
+        }
+        if (cancelled) setStatus("cancelled", "warn");
+        else setStatus(anyErr ? "completed with errors" : "ok", anyErr ? "err" : "ok");
     } catch (e) {
         setStatus(`fatal: ${e.message}`, "err");
         outputEl.textContent = e.stack || e.message;
     } finally {
+        inFlight = false;
         runBtn.disabled = false;
+        cancelBtn.disabled = true;
     }
 }
 
+function onCancel() {
+    if (!inFlight) return;
+    setStatus("cancelling…", "warn");
+    cancelCurrentRun();
+}
+
 document.querySelectorAll('input[name="program"]').forEach((el) => {
     el.addEventListener("change", loadCurrentDemo);
 });
 runBtn.addEventListener("click", runAll);
+cancelBtn.addEventListener("click", onCancel);
+cancelBtn.disabled = true;
 loadCurrentDemo();
diff --git a/www/playground/asm/lumbda-asm.loader.js b/www/playground/asm/lumbda-asm.loader.js
index b56a2da..8ff3a24 100644
--- a/www/playground/asm/lumbda-asm.loader.js
+++ b/www/playground/asm/lumbda-asm.loader.js
@@ -5,8 +5,9 @@
 //   0x10000  output buffer (read after each call)
 //   0x20000  source buffer (write before each call)
 
-async function _bootstrap(baseURL) {
-    const resp = await fetch(baseURL + "lumbda-asm.wasm");
+async function _bootstrap() {
+    const wasmURL = new URL("./lumbda-asm.wasm", import.meta.url).href;
+    const resp = await fetch(wasmURL);
     const bytes = await resp.arrayBuffer();
     const { instance } = await WebAssembly.instantiate(bytes);
     const exp = instance.exports;
@@ -37,9 +38,8 @@ async function _bootstrap(baseURL) {
 // Closure-encapsulated singleton (see lumbda-c.loader.js for rationale).
 export const createAsmTier = (() => {
     let tier = null;
-    return async (opts) => {
-        const baseURL = (opts && opts.baseURL) || "./asm/";
-        if (!tier) tier = await _bootstrap(baseURL);
+    return async () => {
+        if (!tier) tier = await _bootstrap();
         return tier;
     };
 })();
diff --git a/www/playground/asm/lumbda-asm.wasm b/www/playground/asm/lumbda-asm.wasm
index 9ceb490..d6b958b 100644
Binary files a/www/playground/asm/lumbda-asm.wasm and b/www/playground/asm/lumbda-asm.wasm differ
diff --git a/www/playground/c/lumbda-c.js b/www/playground/c/lumbda-c.js
index ab9cd20..f2a7c51 100644
--- a/www/playground/c/lumbda-c.js
+++ b/www/playground/c/lumbda-c.js
@@ -1,2 +1,2 @@
-var createLumbdaC=(()=>{var _scriptName=globalThis.document?.currentScript?.src;return async function(moduleArg={}){var moduleRtn;var Module=moduleArg;var ENVIRONMENT_IS_WEB=!!globalThis.window;var ENVIRONMENT_IS_WORKER=!!globalThis.WorkerGlobalScope;var ENVIRONMENT_IS_NODE=globalThis.process?.versions?.node&&globalThis.process?.type!="renderer";var programArgs=[];var thisProgram="./this.program";var quit_=(status,toThrow)=>{throw toThrow};if(typeof __filename!="undefined"){_scriptName=__filename}else if(ENVIRONMENT_IS_WORKER){_scriptName=self.location.href}var scriptDirectory="";function locateFile(path){if(Module["locateFile"]){return Module["locateFile"](path,scriptDirectory)}return scriptDirectory+path}var readAsync,readBinary;if(ENVIRONMENT_IS_NODE){var fs=require("node:fs");scriptDirectory=__dirname+"/";readBinary=filename=>{filename=isFileURI(filename)?new URL(filename):filename;var ret=fs.readFileSync(filename);return ret};readAsync=async(filename,binary=true)=>{filename=isFileURI(filename)?new URL(filename):filename;var ret=fs.readFileSync(filename,binary?undefined:"utf8");return ret};if(process.argv.length>1){thisProgram=process.argv[1].replace(/\\/g,"/")}programArgs=process.argv.slice(2);quit_=(status,toThrow)=>{process.exitCode=status;throw toThrow}}else if(ENVIRONMENT_IS_WEB||ENVIRONMENT_IS_WORKER){try{scriptDirectory=new URL(".",_scriptName).href}catch{}{if(ENVIRONMENT_IS_WORKER){readBinary=url=>{var xhr=new XMLHttpRequest;xhr.open("GET",url,false);xhr.responseType="arraybuffer";xhr.send(null);return new Uint8Array(xhr.response)}}readAsync=async url=>{var response=await fetch(url,{credentials:"same-origin"});if(response.ok){return response.arrayBuffer()}throw new Error(response.status+" : "+response.url)}}}else{}var out=console.log.bind(console);var err=console.error.bind(console);var wasmBinary;var ABORT=false;var EXITSTATUS;var isFileURI=filename=>filename.startsWith("file://");class EmscriptenEH{}class EmscriptenSjLj extends EmscriptenEH{}var readyPromiseResolve,readyPromiseReject;var runtimeInitialized=false;function updateMemoryViews(){var b=wasmMemory.buffer;HEAP8=new Int8Array(b);HEAP16=new Int16Array(b);HEAPU8=new Uint8Array(b);HEAPU16=new Uint16Array(b);HEAP32=new Int32Array(b);HEAPU32=new Uint32Array(b);HEAPF32=new Float32Array(b);HEAPF64=new Float64Array(b);HEAP64=new BigInt64Array(b);HEAPU64=new BigUint64Array(b)}function preRun(){if(Module["preRun"]){if(typeof Module["preRun"]=="function")Module["preRun"]=[Module["preRun"]];while(Module["preRun"].length){addOnPreRun(Module["preRun"].shift())}}callRuntimeCallbacks(onPreRuns)}function initRuntime(){runtimeInitialized=true;SOCKFS.root=FS.mount(SOCKFS,{},null);if(!Module["noFSInit"]&&!FS.initialized)FS.init();TTY.init();PIPEFS.root=FS.mount(PIPEFS,{},null);wasmExports["__wasm_call_ctors"]();FS.ignorePermissions=false}function postRun(){if(Module["postRun"]){if(typeof Module["postRun"]=="function")Module["postRun"]=[Module["postRun"]];while(Module["postRun"].length){addOnPostRun(Module["postRun"].shift())}}callRuntimeCallbacks(onPostRuns)}function abort(what){Module["onAbort"]?.(what);what=`Aborted(${what})`;err(what);ABORT=true;what+=". Build with -sASSERTIONS for more info.";var e=new WebAssembly.RuntimeError(what);readyPromiseReject?.(e);throw e}var wasmBinaryFile;function findWasmBinary(){return locateFile("lumbda-c.wasm")}function getBinarySync(file){if(file==wasmBinaryFile&&wasmBinary){return new Uint8Array(wasmBinary)}if(readBinary){return readBinary(file)}throw"both async and sync fetching of the wasm failed"}async function getWasmBinary(binaryFile){if(!wasmBinary){try{var response=await readAsync(binaryFile);return new Uint8Array(response)}catch{}}return getBinarySync(binaryFile)}async function instantiateArrayBuffer(binaryFile,imports){try{var binary=await getWasmBinary(binaryFile);var instance=await WebAssembly.instantiate(binary,imports);return instance}catch(reason){err(`failed to asynchronously prepare wasm: ${reason}`);abort(reason)}}async function instantiateAsync(binary,binaryFile,imports){if(!binary&&!ENVIRONMENT_IS_NODE){try{var response=fetch(binaryFile,{credentials:"same-origin"});var instantiationResult=await WebAssembly.instantiateStreaming(response,imports);return instantiationResult}catch(reason){err(`wasm streaming compile failed: ${reason}`);err("falling back to ArrayBuffer instantiation")}}return instantiateArrayBuffer(binaryFile,imports)}function getWasmImports(){var imports={env:wasmImports,wasi_snapshot_preview1:wasmImports};return imports}async function createWasm(){function receiveInstance(instance,module){wasmExports=instance.exports;assignWasmExports(wasmExports);updateMemoryViews();return wasmExports}function receiveInstantiationResult(result){return receiveInstance(result["instance"])}var info=getWasmImports();if(Module["instantiateWasm"]){return new Promise((resolve,reject)=>{Module["instantiateWasm"](info,(inst,mod)=>{resolve(receiveInstance(inst,mod))})})}wasmBinaryFile??=findWasmBinary();var result=await instantiateAsync(wasmBinary,wasmBinaryFile,info);var exports=receiveInstantiationResult(result);return exports}class ExitStatus{name="ExitStatus";constructor(status){this.message=`Program terminated with exit(${status})`;this.status=status}}var HEAP16;var HEAP32;var HEAP64;var HEAP8;var HEAPF32;var HEAPF64;var HEAPU16;var HEAPU32;var HEAPU64;var HEAPU8;var callRuntimeCallbacks=callbacks=>{while(callbacks.length>0){callbacks.shift()(Module)}};var onPostRuns=[];var addOnPostRun=cb=>onPostRuns.push(cb);var onPreRuns=[];var addOnPreRun=cb=>onPreRuns.push(cb);var noExitRuntime=true;var stackRestore=val=>__emscripten_stack_restore(val);var stackSave=()=>_emscripten_stack_get_current();var initRandomFill=()=>{if(ENVIRONMENT_IS_NODE){var nodeCrypto=require("node:crypto");return view=>nodeCrypto.randomFillSync(view)}return view=>(crypto.getRandomValues(view),0)};var randomFill=view=>(randomFill=initRandomFill())(view);var PATH={isAbs:path=>path.charAt(0)==="/",splitPath:filename=>{var splitPathRe=/^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;return splitPathRe.exec(filename).slice(1)},normalizeArray:(parts,allowAboveRoot)=>{var up=0;for(var i=parts.length-1;i>=0;i--){var last=parts[i];if(last==="."){parts.splice(i,1)}else if(last===".."){parts.splice(i,1);up++}else if(up){parts.splice(i,1);up--}}if(allowAboveRoot){for(;up;up--){parts.unshift("..")}}return parts},normalize:path=>{var isAbsolute=PATH.isAbs(path),trailingSlash=path.slice(-1)==="/";path=PATH.normalizeArray(path.split("/").filter(p=>!!p),!isAbsolute).join("/");if(!path&&!isAbsolute){path="."}if(path&&trailingSlash){path+="/"}return(isAbsolute?"/":"")+path},dirname:path=>{var result=PATH.splitPath(path),root=result[0],dir=result[1];if(!root&&!dir){return"."}if(dir){dir=dir.slice(0,-1)}return root+dir},basename:path=>path&&path.match(/([^\/]+|\/)\/*$/)[1],join:(...paths)=>PATH.normalize(paths.join("/")),join2:(l,r)=>PATH.normalize(l+"/"+r)};var PATH_FS={resolve:(...args)=>{var resolvedPath="",resolvedAbsolute=false;for(var i=args.length-1;i>=-1&&!resolvedAbsolute;i--){var path=i>=0?args[i]:FS.cwd();if(typeof path!="string"){throw new TypeError("Arguments to path.resolve must be strings")}else if(!path){return""}resolvedPath=path+"/"+resolvedPath;resolvedAbsolute=PATH.isAbs(path)}resolvedPath=PATH.normalizeArray(resolvedPath.split("/").filter(p=>!!p),!resolvedAbsolute).join("/");return(resolvedAbsolute?"/":"")+resolvedPath||"."},relative:(from,to)=>{from=PATH_FS.resolve(from).slice(1);to=PATH_FS.resolve(to).slice(1);function trim(arr){var start=0;for(;start<arr.length;start++){if(arr[start]!=="")break}var end=arr.length-1;for(;end>=0;end--){if(arr[end]!=="")break}if(start>end)return[];return arr.slice(start,end-start+1)}var fromParts=trim(from.split("/"));var toParts=trim(to.split("/"));var length=Math.min(fromParts.length,toParts.length);var samePartsLength=length;for(var i=0;i<length;i++){if(fromParts[i]!==toParts[i]){samePartsLength=i;break}}var outputParts=[];for(var i=samePartsLength;i<fromParts.length;i++){outputParts.push("..")}outputParts=outputParts.concat(toParts.slice(samePartsLength));return outputParts.join("/")}};var UTF8Decoder=globalThis.TextDecoder&&new TextDecoder;var findStringEnd=(heapOrArray,idx,maxBytesToRead,ignoreNul)=>{var maxIdx=idx+maxBytesToRead;if(ignoreNul)return maxIdx;while(heapOrArray[idx]&&!(idx>=maxIdx))++idx;return idx};var UTF8ArrayToString=(heapOrArray,idx=0,maxBytesToRead,ignoreNul)=>{var endPtr=findStringEnd(heapOrArray,idx,maxBytesToRead,ignoreNul);if(endPtr-idx>16&&heapOrArray.buffer&&UTF8Decoder){return UTF8Decoder.decode(heapOrArray.subarray(idx,endPtr))}var str="";while(idx<endPtr){var u0=heapOrArray[idx++];if(!(u0&128)){str+=String.fromCharCode(u0);continue}var u1=heapOrArray[idx++]&63;if((u0&224)==192){str+=String.fromCharCode((u0&31)<<6|u1);continue}var u2=heapOrArray[idx++]&63;if((u0&240)==224){u0=(u0&15)<<12|u1<<6|u2}else{u0=(u0&7)<<18|u1<<12|u2<<6|heapOrArray[idx++]&63}if(u0<65536){str+=String.fromCharCode(u0)}else{var ch=u0-65536;str+=String.fromCharCode(55296|ch>>10,56320|ch&1023)}}return str};var FS_stdin_getChar_buffer=[];var lengthBytesUTF8=str=>{var len=0;for(var i=0;i<str.length;++i){var c=str.charCodeAt(i);if(c<=127){len++}else if(c<=2047){len+=2}else if(c>=55296&&c<=57343){len+=4;++i}else{len+=3}}return len};var stringToUTF8Array=(str,heap,outIdx,maxBytesToWrite)=>{if(!(maxBytesToWrite>0))return 0;var startIdx=outIdx;var endIdx=outIdx+maxBytesToWrite-1;for(var i=0;i<str.length;++i){var u=str.codePointAt(i);if(u<=127){if(outIdx>=endIdx)break;heap[outIdx++]=u}else if(u<=2047){if(outIdx+1>=endIdx)break;heap[outIdx++]=192|u>>6;heap[outIdx++]=128|u&63}else if(u<=65535){if(outIdx+2>=endIdx)break;heap[outIdx++]=224|u>>12;heap[outIdx++]=128|u>>6&63;heap[outIdx++]=128|u&63}else{if(outIdx+3>=endIdx)break;heap[outIdx++]=240|u>>18;heap[outIdx++]=128|u>>12&63;heap[outIdx++]=128|u>>6&63;heap[outIdx++]=128|u&63;i++}}heap[outIdx]=0;return outIdx-startIdx};var intArrayFromString=(stringy,dontAddNull,length)=>{var len=length>0?length:lengthBytesUTF8(stringy)+1;var u8array=new Array(len);var numBytesWritten=stringToUTF8Array(stringy,u8array,0,u8array.length);if(dontAddNull)u8array.length=numBytesWritten;return u8array};var FS_stdin_getChar=()=>{if(!FS_stdin_getChar_buffer.length){var result=null;if(ENVIRONMENT_IS_NODE){var BUFSIZE=256;var buf=Buffer.alloc(BUFSIZE);var bytesRead=0;var fd=process.stdin.fd;try{bytesRead=fs.readSync(fd,buf,0,BUFSIZE)}catch(e){if(e.toString().includes("EOF"))bytesRead=0;else throw e}if(bytesRead>0){result=buf.slice(0,bytesRead).toString("utf-8")}}else if(globalThis.window?.prompt){result=window.prompt("Input: ");if(result!==null){result+="\n"}}else{}if(!result){return null}FS_stdin_getChar_buffer=intArrayFromString(result,true)}return FS_stdin_getChar_buffer.shift()};var TTY={ttys:[],init(){},shutdown(){},register(dev,ops){TTY.ttys[dev]={input:[],output:[],ops};FS.registerDevice(dev,TTY.stream_ops)},stream_ops:{open(stream){var tty=TTY.ttys[stream.node.rdev];if(!tty){throw new FS.ErrnoError(43)}stream.tty=tty;stream.seekable=false},close(stream){stream.tty.ops.fsync(stream.tty)},fsync(stream){stream.tty.ops.fsync(stream.tty)},read(stream,buffer,offset,length,pos){if(!stream.tty||!stream.tty.ops.get_char){throw new FS.ErrnoError(60)}var bytesRead=0;for(var i=0;i<length;i++){var result;try{result=stream.tty.ops.get_char(stream.tty)}catch(e){throw new FS.ErrnoError(29)}if(result===undefined&&bytesRead===0){throw new FS.ErrnoError(6)}if(result===null||result===undefined)break;bytesRead++;buffer[offset+i]=result}if(bytesRead){stream.node.atime=Date.now()}return bytesRead},write(stream,buffer,offset,length,pos){if(!stream.tty||!stream.tty.ops.put_char){throw new FS.ErrnoError(60)}try{for(var i=0;i<length;i++){stream.tty.ops.put_char(stream.tty,buffer[offset+i])}}catch(e){throw new FS.ErrnoError(29)}if(length){stream.node.mtime=stream.node.ctime=Date.now()}return i}},default_tty_ops:{get_char(tty){return FS_stdin_getChar()},put_char(tty,val){if(val===null||val===10){out(UTF8ArrayToString(tty.output));tty.output=[]}else{if(val!=0)tty.output.push(val)}},fsync(tty){if(tty.output?.length>0){out(UTF8ArrayToString(tty.output));tty.output=[]}},ioctl_tcgets(tty){return{c_iflag:25856,c_oflag:5,c_cflag:191,c_lflag:35387,c_cc:[3,28,127,21,4,0,1,0,17,19,26,0,18,15,23,22,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]}},ioctl_tcsets(tty,optional_actions,data){return 0},ioctl_tiocgwinsz(tty){return[24,80]}},default_tty1_ops:{put_char(tty,val){if(val===null||val===10){err(UTF8ArrayToString(tty.output));tty.output=[]}else{if(val!=0)tty.output.push(val)}},fsync(tty){if(tty.output?.length>0){err(UTF8ArrayToString(tty.output));tty.output=[]}}}};var mmapAlloc=size=>{abort()};var MEMFS={ops_table:null,mount(mount){return MEMFS.createNode(null,"/",16895,0)},createNode(parent,name,mode,dev){if(FS.isBlkdev(mode)||FS.isFIFO(mode)){throw new FS.ErrnoError(63)}MEMFS.ops_table||={dir:{node:{getattr:MEMFS.node_ops.getattr,setattr:MEMFS.node_ops.setattr,lookup:MEMFS.node_ops.lookup,mknod:MEMFS.node_ops.mknod,rename:MEMFS.node_ops.rename,unlink:MEMFS.node_ops.unlink,rmdir:MEMFS.node_ops.rmdir,readdir:MEMFS.node_ops.readdir,symlink:MEMFS.node_ops.symlink},stream:{llseek:MEMFS.stream_ops.llseek}},file:{node:{getattr:MEMFS.node_ops.getattr,setattr:MEMFS.node_ops.setattr},stream:{llseek:MEMFS.stream_ops.llseek,read:MEMFS.stream_ops.read,write:MEMFS.stream_ops.write,mmap:MEMFS.stream_ops.mmap,msync:MEMFS.stream_ops.msync}},link:{node:{getattr:MEMFS.node_ops.getattr,setattr:MEMFS.node_ops.setattr,readlink:MEMFS.node_ops.readlink},stream:{}},chrdev:{node:{getattr:MEMFS.node_ops.getattr,setattr:MEMFS.node_ops.setattr},stream:FS.chrdev_stream_ops}};var node=FS.createNode(parent,name,mode,dev);if(FS.isDir(node.mode)){node.node_ops=MEMFS.ops_table.dir.node;node.stream_ops=MEMFS.ops_table.dir.stream;node.contents={}}else if(FS.isFile(node.mode)){node.node_ops=MEMFS.ops_table.file.node;node.stream_ops=MEMFS.ops_table.file.stream;node.usedBytes=0;node.contents=MEMFS.emptyFileContents??=new Uint8Array(0)}else if(FS.isLink(node.mode)){node.node_ops=MEMFS.ops_table.link.node;node.stream_ops=MEMFS.ops_table.link.stream}else if(FS.isChrdev(node.mode)){node.node_ops=MEMFS.ops_table.chrdev.node;node.stream_ops=MEMFS.ops_table.chrdev.stream}node.atime=node.mtime=node.ctime=Date.now();if(parent){parent.contents[name]=node;parent.atime=parent.mtime=parent.ctime=node.atime}return node},getFileDataAsTypedArray(node){return node.contents.subarray(0,node.usedBytes)},expandFileStorage(node,newCapacity){var prevCapacity=node.contents.length;if(prevCapacity>=newCapacity)return;var CAPACITY_DOUBLING_MAX=1024*1024;newCapacity=Math.max(newCapacity,prevCapacity*(prevCapacity<CAPACITY_DOUBLING_MAX?2:1.125)>>>0);if(prevCapacity)newCapacity=Math.max(newCapacity,256);var oldContents=MEMFS.getFileDataAsTypedArray(node);node.contents=new Uint8Array(newCapacity);node.contents.set(oldContents)},resizeFileStorage(node,newSize){if(node.usedBytes==newSize)return;var oldContents=node.contents;node.contents=new Uint8Array(newSize);node.contents.set(oldContents.subarray(0,Math.min(newSize,node.usedBytes)));node.usedBytes=newSize},node_ops:{getattr(node){var attr={};attr.dev=FS.isChrdev(node.mode)?node.id:1;attr.ino=node.id;attr.mode=node.mode;attr.nlink=1;attr.uid=0;attr.gid=0;attr.rdev=node.rdev;if(FS.isDir(node.mode)){attr.size=4096}else if(FS.isFile(node.mode)){attr.size=node.usedBytes}else if(FS.isLink(node.mode)){attr.size=node.link.length}else{attr.size=0}attr.atime=new Date(node.atime);attr.mtime=new Date(node.mtime);attr.ctime=new Date(node.ctime);attr.blksize=4096;attr.blocks=Math.ceil(attr.size/attr.blksize);return attr},setattr(node,attr){for(const key of["mode","atime","mtime","ctime"]){if(attr[key]!=null){node[key]=attr[key]}}if(attr.size!==undefined){MEMFS.resizeFileStorage(node,attr.size)}},lookup(parent,name){if(!MEMFS.doesNotExistError){MEMFS.doesNotExistError=new FS.ErrnoError(44);MEMFS.doesNotExistError.stack="<generic error, no stack>"}throw MEMFS.doesNotExistError},mknod(parent,name,mode,dev){return MEMFS.createNode(parent,name,mode,dev)},rename(old_node,new_dir,new_name){var new_node;try{new_node=FS.lookupNode(new_dir,new_name)}catch(e){}if(new_node){if(FS.isDir(old_node.mode)){for(var i in new_node.contents){throw new FS.ErrnoError(55)}}FS.hashRemoveNode(new_node)}delete old_node.parent.contents[old_node.name];new_dir.contents[new_name]=old_node;old_node.name=new_name;new_dir.ctime=new_dir.mtime=old_node.parent.ctime=old_node.parent.mtime=Date.now()},unlink(parent,name){delete parent.contents[name];parent.ctime=parent.mtime=Date.now()},rmdir(parent,name){var node=FS.lookupNode(parent,name);for(var i in node.contents){throw new FS.ErrnoError(55)}delete parent.contents[name];parent.ctime=parent.mtime=Date.now()},readdir(node){return[".","..",...Object.keys(node.contents)]},symlink(parent,newname,oldpath){var node=MEMFS.createNode(parent,newname,511|40960,0);node.link=oldpath;return node},readlink(node){if(!FS.isLink(node.mode)){throw new FS.ErrnoError(28)}return node.link}},stream_ops:{read(stream,buffer,offset,length,position){var contents=stream.node.contents;if(position>=stream.node.usedBytes)return 0;var size=Math.min(stream.node.usedBytes-position,length);buffer.set(contents.subarray(position,position+size),offset);return size},write(stream,buffer,offset,length,position,canOwn){if(buffer.buffer===HEAP8.buffer){canOwn=false}if(!length)return 0;var node=stream.node;node.mtime=node.ctime=Date.now();if(canOwn){node.contents=buffer.subarray(offset,offset+length);node.usedBytes=length}else if(node.usedBytes===0&&position===0){node.contents=buffer.slice(offset,offset+length);node.usedBytes=length}else{MEMFS.expandFileStorage(node,position+length);node.contents.set(buffer.subarray(offset,offset+length),position);node.usedBytes=Math.max(node.usedBytes,position+length)}return length},llseek(stream,offset,whence){var position=offset;if(whence===1){position+=stream.position}else if(whence===2){if(FS.isFile(stream.node.mode)){position+=stream.node.usedBytes}}if(position<0){throw new FS.ErrnoError(28)}return position},mmap(stream,length,position,prot,flags){if(!FS.isFile(stream.node.mode)){throw new FS.ErrnoError(43)}var ptr;var allocated;var contents=stream.node.contents;if(!(flags&2)&&contents.buffer===HEAP8.buffer){allocated=false;ptr=contents.byteOffset}else{allocated=true;ptr=mmapAlloc(length);if(!ptr){throw new FS.ErrnoError(48)}if(contents){if(position>0||position+length<contents.length){if(contents.subarray){contents=contents.subarray(position,position+length)}else{contents=Array.prototype.slice.call(contents,position,position+length)}}HEAP8.set(contents,ptr)}}return{ptr,allocated}},msync(stream,buffer,offset,length,mmapFlags){MEMFS.stream_ops.write(stream,buffer,0,length,offset,false);return 0}}};var FS_modeStringToFlags=str=>{if(typeof str!="string")return str;var flagModes={r:0,"r+":2,w:512|64|1,"w+":512|64|2,a:1024|64|1,"a+":1024|64|2};var flags=flagModes[str];if(typeof flags=="undefined"){throw new Error(`Unknown file open mode: ${str}`)}return flags};var FS_fileDataToTypedArray=data=>{if(typeof data=="string"){data=intArrayFromString(data,true)}if(!data.subarray){data=new Uint8Array(data)}return data};var FS_getMode=(canRead,canWrite)=>{var mode=0;if(canRead)mode|=292|73;if(canWrite)mode|=146;return mode};var asyncLoad=async url=>{var arrayBuffer=await readAsync(url);return new Uint8Array(arrayBuffer)};var FS_createDataFile=(...args)=>FS.createDataFile(...args);var getUniqueRunDependency=id=>id;var runDependencies=0;var dependenciesFulfilled=null;var removeRunDependency=id=>{runDependencies--;Module["monitorRunDependencies"]?.(runDependencies);if(runDependencies==0){if(dependenciesFulfilled){var callback=dependenciesFulfilled;dependenciesFulfilled=null;callback()}}};var addRunDependency=id=>{runDependencies++;Module["monitorRunDependencies"]?.(runDependencies)};var preloadPlugins=[];var FS_handledByPreloadPlugin=async(byteArray,fullname)=>{if(typeof Browser!="undefined")Browser.init();for(var plugin of preloadPlugins){if(plugin["canHandle"](fullname)){return plugin["handle"](byteArray,fullname)}}return byteArray};var FS_preloadFile=async(parent,name,url,canRead,canWrite,dontCreateFile,canOwn,preFinish)=>{var fullname=name?PATH_FS.resolve(PATH.join2(parent,name)):parent;var dep=getUniqueRunDependency(`cp ${fullname}`);addRunDependency(dep);try{var byteArray=url;if(typeof url=="string"){byteArray=await asyncLoad(url)}byteArray=await FS_handledByPreloadPlugin(byteArray,fullname);preFinish?.();if(!dontCreateFile){FS_createDataFile(parent,name,byteArray,canRead,canWrite,canOwn)}}finally{removeRunDependency(dep)}};var FS_createPreloadedFile=(parent,name,url,canRead,canWrite,onload,onerror,dontCreateFile,canOwn,preFinish)=>{FS_preloadFile(parent,name,url,canRead,canWrite,dontCreateFile,canOwn,preFinish).then(onload).catch(onerror)};var FS={root:null,mounts:[],devices:{},streams:[],nextInode:1,nameTable:null,currentPath:"/",initialized:false,ignorePermissions:true,filesystems:null,syncFSRequests:0,ErrnoError:class{name="ErrnoError";constructor(errno){this.errno=errno}},FSStream:class{shared={};get object(){return this.node}set object(val){this.node=val}get isRead(){return(this.flags&2097155)!==1}get isWrite(){return(this.flags&2097155)!==0}get isAppend(){return this.flags&1024}get flags(){return this.shared.flags}set flags(val){this.shared.flags=val}get position(){return this.shared.position}set position(val){this.shared.position=val}},FSNode:class{node_ops={};stream_ops={};readMode=292|73;writeMode=146;mounted=null;constructor(parent,name,mode,rdev){if(!parent){parent=this}this.parent=parent;this.mount=parent.mount;this.id=FS.nextInode++;this.name=name;this.mode=mode;this.rdev=rdev;this.atime=this.mtime=this.ctime=Date.now()}get read(){return(this.mode&this.readMode)===this.readMode}set read(val){val?this.mode|=this.readMode:this.mode&=~this.readMode}get write(){return(this.mode&this.writeMode)===this.writeMode}set write(val){val?this.mode|=this.writeMode:this.mode&=~this.writeMode}get isFolder(){return FS.isDir(this.mode)}get isDevice(){return FS.isChrdev(this.mode)}},lookupPath(path,opts={}){if(!path){throw new FS.ErrnoError(44)}opts.follow_mount??=true;if(!PATH.isAbs(path)){path=FS.cwd()+"/"+path}linkloop:for(var nlinks=0;nlinks<40;nlinks++){var parts=path.split("/").filter(p=>!!p);var current=FS.root;var current_path="/";for(var i=0;i<parts.length;i++){var islast=i===parts.length-1;if(islast&&opts.parent){break}if(parts[i]==="."){continue}if(parts[i]===".."){current_path=PATH.dirname(current_path);if(FS.isRoot(current)){path=current_path+"/"+parts.slice(i+1).join("/");nlinks--;continue linkloop}else{current=current.parent}continue}current_path=PATH.join2(current_path,parts[i]);try{current=FS.lookupNode(current,parts[i])}catch(e){if(e?.errno===44&&islast&&opts.noent_okay){return{path:current_path}}throw e}if(FS.isMountpoint(current)&&(!islast||opts.follow_mount)){current=current.mounted.root}if(FS.isLink(current.mode)&&(!islast||opts.follow)){if(!current.node_ops.readlink){throw new FS.ErrnoError(52)}var link=current.node_ops.readlink(current);if(!PATH.isAbs(link)){link=PATH.dirname(current_path)+"/"+link}path=link+"/"+parts.slice(i+1).join("/");continue linkloop}}return{path:current_path,node:current}}throw new FS.ErrnoError(32)},getPath(node){var path;while(true){if(FS.isRoot(node)){var mount=node.mount.mountpoint;if(!path)return mount;return mount[mount.length-1]!=="/"?`${mount}/${path}`:mount+path}path=path?`${node.name}/${path}`:node.name;node=node.parent}},hashName(parentid,name){var hash=0;for(var i=0;i<name.length;i++){hash=(hash<<5)-hash+name.charCodeAt(i)|0}return(parentid+hash>>>0)%FS.nameTable.length},hashAddNode(node){var hash=FS.hashName(node.parent.id,node.name);node.name_next=FS.nameTable[hash];FS.nameTable[hash]=node},hashRemoveNode(node){var hash=FS.hashName(node.parent.id,node.name);if(FS.nameTable[hash]===node){FS.nameTable[hash]=node.name_next}else{var current=FS.nameTable[hash];while(current){if(current.name_next===node){current.name_next=node.name_next;break}current=current.name_next}}},lookupNode(parent,name){var errCode=FS.mayLookup(parent);if(errCode){throw new FS.ErrnoError(errCode)}var hash=FS.hashName(parent.id,name);for(var node=FS.nameTable[hash];node;node=node.name_next){var nodeName=node.name;if(node.parent.id===parent.id&&nodeName===name){return node}}return FS.lookup(parent,name)},createNode(parent,name,mode,rdev){var node=new FS.FSNode(parent,name,mode,rdev);FS.hashAddNode(node);return node},destroyNode(node){FS.hashRemoveNode(node)},isRoot(node){return node===node.parent},isMountpoint(node){return!!node.mounted},isFile(mode){return(mode&61440)===32768},isDir(mode){return(mode&61440)===16384},isLink(mode){return(mode&61440)===40960},isChrdev(mode){return(mode&61440)===8192},isBlkdev(mode){return(mode&61440)===24576},isFIFO(mode){return(mode&61440)===4096},isSocket(mode){return(mode&49152)===49152},flagsToPermissionString(flag){var perms=["r","w","rw"][flag&3];if(flag&512){perms+="w"}return perms},nodePermissions(node,perms){if(FS.ignorePermissions){return 0}if(perms.includes("r")&&!(node.mode&292)){return 2}if(perms.includes("w")&&!(node.mode&146)){return 2}if(perms.includes("x")&&!(node.mode&73)){return 2}return 0},mayLookup(dir){if(!FS.isDir(dir.mode))return 54;var errCode=FS.nodePermissions(dir,"x");if(errCode)return errCode;if(!dir.node_ops.lookup)return 2;return 0},mayCreate(dir,name){if(!FS.isDir(dir.mode)){return 54}try{var node=FS.lookupNode(dir,name);return 20}catch(e){}return FS.nodePermissions(dir,"wx")},mayDelete(dir,name,isdir){var node;try{node=FS.lookupNode(dir,name)}catch(e){return e.errno}var errCode=FS.nodePermissions(dir,"wx");if(errCode){return errCode}if(isdir){if(!FS.isDir(node.mode)){return 54}if(FS.isRoot(node)||FS.getPath(node)===FS.cwd()){return 10}}else if(FS.isDir(node.mode)){return 31}return 0},mayOpen(node,flags){if(!node){return 44}if(FS.isLink(node.mode)){return 32}var mode=FS.flagsToPermissionString(flags);if(FS.isDir(node.mode)){if(mode!=="r"||flags&(512|64)){return 31}}return FS.nodePermissions(node,mode)},checkOpExists(op,err){if(!op){throw new FS.ErrnoError(err)}return op},MAX_OPEN_FDS:4096,nextfd(){for(var fd=0;fd<=FS.MAX_OPEN_FDS;fd++){if(!FS.streams[fd]){return fd}}throw new FS.ErrnoError(33)},getStreamChecked(fd){var stream=FS.getStream(fd);if(!stream){throw new FS.ErrnoError(8)}return stream},getStream:fd=>FS.streams[fd],createStream(stream,fd=-1){stream=Object.assign(new FS.FSStream,stream);if(fd==-1){fd=FS.nextfd()}stream.fd=fd;FS.streams[fd]=stream;return stream},closeStream(fd){FS.streams[fd]=null},dupStream(origStream,fd=-1){var stream=FS.createStream(origStream,fd);stream.stream_ops?.dup?.(stream);return stream},doSetAttr(stream,node,attr){var setattr=stream?.stream_ops.setattr;var arg=setattr?stream:node;setattr??=node.node_ops.setattr;FS.checkOpExists(setattr,63);try{setattr(arg,attr)}catch(e){if(e instanceof RangeError){throw new FS.ErrnoError(22)}throw e}},chrdev_stream_ops:{open(stream){var device=FS.getDevice(stream.node.rdev);stream.stream_ops=device.stream_ops;stream.stream_ops.open?.(stream)},llseek(){throw new FS.ErrnoError(70)}},major:dev=>dev>>8,minor:dev=>dev&255,makedev:(ma,mi)=>ma<<8|mi,registerDevice(dev,ops){FS.devices[dev]={stream_ops:ops}},getDevice:dev=>FS.devices[dev],getMounts(mount){var mounts=[];var check=[mount];while(check.length){var m=check.pop();mounts.push(m);check.push(...m.mounts)}return mounts},syncfs(populate,callback){if(typeof populate=="function"){callback=populate;populate=false}FS.syncFSRequests++;if(FS.syncFSRequests>1){err(`warning: ${FS.syncFSRequests} FS.syncfs operations in flight at once, probably just doing extra work`)}var mounts=FS.getMounts(FS.root.mount);var completed=0;function doCallback(errCode){FS.syncFSRequests--;return callback(errCode)}function done(errCode){if(errCode){if(!done.errored){done.errored=true;return doCallback(errCode)}return}if(++completed>=mounts.length){doCallback(null)}}for(var mount of mounts){if(mount.type.syncfs){mount.type.syncfs(mount,populate,done)}else{done(null)}}},mount(type,opts,mountpoint){var root=mountpoint==="/";var pseudo=!mountpoint;var node;if(root&&FS.root){throw new FS.ErrnoError(10)}else if(!root&&!pseudo){var lookup=FS.lookupPath(mountpoint,{follow_mount:false});mountpoint=lookup.path;node=lookup.node;if(FS.isMountpoint(node)){throw new FS.ErrnoError(10)}if(!FS.isDir(node.mode)){throw new FS.ErrnoError(54)}}var mount={type,opts,mountpoint,mounts:[]};var mountRoot=type.mount(mount);mountRoot.mount=mount;mount.root=mountRoot;if(root){FS.root=mountRoot}else if(node){node.mounted=mount;if(node.mount){node.mount.mounts.push(mount)}}return mountRoot},unmount(mountpoint){var lookup=FS.lookupPath(mountpoint,{follow_mount:false});if(!FS.isMountpoint(lookup.node)){throw new FS.ErrnoError(28)}var node=lookup.node;var mount=node.mounted;var mounts=FS.getMounts(mount);for(var[hash,current]of Object.entries(FS.nameTable)){while(current){var next=current.name_next;if(mounts.includes(current.mount)){FS.destroyNode(current)}current=next}}node.mounted=null;var idx=node.mount.mounts.indexOf(mount);node.mount.mounts.splice(idx,1)},lookup(parent,name){return parent.node_ops.lookup(parent,name)},mknod(path,mode,dev){var lookup=FS.lookupPath(path,{parent:true});var parent=lookup.node;var name=PATH.basename(path);if(!name){throw new FS.ErrnoError(28)}if(name==="."||name===".."){throw new FS.ErrnoError(20)}var errCode=FS.mayCreate(parent,name);if(errCode){throw new FS.ErrnoError(errCode)}if(!parent.node_ops.mknod){throw new FS.ErrnoError(63)}return parent.node_ops.mknod(parent,name,mode,dev)},statfs(path){return FS.statfsNode(FS.lookupPath(path,{follow:true}).node)},statfsStream(stream){return FS.statfsNode(stream.node)},statfsNode(node){var rtn={bsize:4096,frsize:4096,blocks:1e6,bfree:5e5,bavail:5e5,files:FS.nextInode,ffree:FS.nextInode-1,fsid:42,flags:2,namelen:255};if(node.node_ops.statfs){Object.assign(rtn,node.node_ops.statfs(node.mount.opts.root))}return rtn},create(path,mode=438){mode&=4095;mode|=32768;return FS.mknod(path,mode,0)},mkdir(path,mode=511){mode&=511|512;mode|=16384;return FS.mknod(path,mode,0)},mkdirTree(path,mode){var dirs=path.split("/");var d="";for(var dir of dirs){if(!dir)continue;if(d||PATH.isAbs(path))d+="/";d+=dir;try{FS.mkdir(d,mode)}catch(e){if(e.errno!=20)throw e}}},mkdev(path,mode,dev){if(typeof dev=="undefined"){dev=mode;mode=438}mode|=8192;return FS.mknod(path,mode,dev)},symlink(oldpath,newpath){if(!PATH_FS.resolve(oldpath)){throw new FS.ErrnoError(44)}var lookup=FS.lookupPath(newpath,{parent:true});var parent=lookup.node;if(!parent){throw new FS.ErrnoError(44)}var newname=PATH.basename(newpath);var errCode=FS.mayCreate(parent,newname);if(errCode){throw new FS.ErrnoError(errCode)}if(!parent.node_ops.symlink){throw new FS.ErrnoError(63)}return parent.node_ops.symlink(parent,newname,oldpath)},rename(old_path,new_path){var old_dirname=PATH.dirname(old_path);var new_dirname=PATH.dirname(new_path);var old_name=PATH.basename(old_path);var new_name=PATH.basename(new_path);var lookup,old_dir,new_dir;lookup=FS.lookupPath(old_path,{parent:true});old_dir=lookup.node;lookup=FS.lookupPath(new_path,{parent:true});new_dir=lookup.node;if(!old_dir||!new_dir)throw new FS.ErrnoError(44);if(old_dir.mount!==new_dir.mount){throw new FS.ErrnoError(75)}var old_node=FS.lookupNode(old_dir,old_name);var relative=PATH_FS.relative(old_path,new_dirname);if(relative.charAt(0)!=="."){throw new FS.ErrnoError(28)}relative=PATH_FS.relative(new_path,old_dirname);if(relative.charAt(0)!=="."){throw new FS.ErrnoError(55)}var new_node;try{new_node=FS.lookupNode(new_dir,new_name)}catch(e){}if(old_node===new_node){return}var isdir=FS.isDir(old_node.mode);var errCode=FS.mayDelete(old_dir,old_name,isdir);if(errCode){throw new FS.ErrnoError(errCode)}errCode=new_node?FS.mayDelete(new_dir,new_name,isdir):FS.mayCreate(new_dir,new_name);if(errCode){throw new FS.ErrnoError(errCode)}if(!old_dir.node_ops.rename){throw new FS.ErrnoError(63)}if(FS.isMountpoint(old_node)||new_node&&FS.isMountpoint(new_node)){throw new FS.ErrnoError(10)}if(new_dir!==old_dir){errCode=FS.nodePermissions(old_dir,"w");if(errCode){throw new FS.ErrnoError(errCode)}}FS.hashRemoveNode(old_node);try{old_dir.node_ops.rename(old_node,new_dir,new_name);old_node.parent=new_dir}catch(e){throw e}finally{FS.hashAddNode(old_node)}},rmdir(path){var lookup=FS.lookupPath(path,{parent:true});var parent=lookup.node;var name=PATH.basename(path);var node=FS.lookupNode(parent,name);var errCode=FS.mayDelete(parent,name,true);if(errCode){throw new FS.ErrnoError(errCode)}if(!parent.node_ops.rmdir){throw new FS.ErrnoError(63)}if(FS.isMountpoint(node)){throw new FS.ErrnoError(10)}parent.node_ops.rmdir(parent,name);FS.destroyNode(node)},readdir(path){var lookup=FS.lookupPath(path,{follow:true});var node=lookup.node;var readdir=FS.checkOpExists(node.node_ops.readdir,54);return readdir(node)},unlink(path){var lookup=FS.lookupPath(path,{parent:true});var parent=lookup.node;if(!parent){throw new FS.ErrnoError(44)}var name=PATH.basename(path);var node=FS.lookupNode(parent,name);var errCode=FS.mayDelete(parent,name,false);if(errCode){throw new FS.ErrnoError(errCode)}if(!parent.node_ops.unlink){throw new FS.ErrnoError(63)}if(FS.isMountpoint(node)){throw new FS.ErrnoError(10)}parent.node_ops.unlink(parent,name);FS.destroyNode(node)},readlink(path){var lookup=FS.lookupPath(path);var link=lookup.node;if(!link){throw new FS.ErrnoError(44)}if(!link.node_ops.readlink){throw new FS.ErrnoError(28)}return link.node_ops.readlink(link)},stat(path,dontFollow){var lookup=FS.lookupPath(path,{follow:!dontFollow});var node=lookup.node;var getattr=FS.checkOpExists(node.node_ops.getattr,63);return getattr(node)},fstat(fd){var stream=FS.getStreamChecked(fd);var node=stream.node;var getattr=stream.stream_ops.getattr;var arg=getattr?stream:node;getattr??=node.node_ops.getattr;FS.checkOpExists(getattr,63);return getattr(arg)},lstat(path){return FS.stat(path,true)},doChmod(stream,node,mode,dontFollow){FS.doSetAttr(stream,node,{mode:mode&4095|node.mode&~4095,ctime:Date.now(),dontFollow})},chmod(path,mode,dontFollow){var node;if(typeof path=="string"){var lookup=FS.lookupPath(path,{follow:!dontFollow});node=lookup.node}else{node=path}FS.doChmod(null,node,mode,dontFollow)},lchmod(path,mode){FS.chmod(path,mode,true)},fchmod(fd,mode){var stream=FS.getStreamChecked(fd);FS.doChmod(stream,stream.node,mode,false)},doChown(stream,node,dontFollow){FS.doSetAttr(stream,node,{timestamp:Date.now(),dontFollow})},chown(path,uid,gid,dontFollow){var node;if(typeof path=="string"){var lookup=FS.lookupPath(path,{follow:!dontFollow});node=lookup.node}else{node=path}FS.doChown(null,node,dontFollow)},lchown(path,uid,gid){FS.chown(path,uid,gid,true)},fchown(fd,uid,gid){var stream=FS.getStreamChecked(fd);FS.doChown(stream,stream.node,false)},doTruncate(stream,node,len){if(FS.isDir(node.mode)){throw new FS.ErrnoError(31)}if(!FS.isFile(node.mode)){throw new FS.ErrnoError(28)}var errCode=FS.nodePermissions(node,"w");if(errCode){throw new FS.ErrnoError(errCode)}FS.doSetAttr(stream,node,{size:len,timestamp:Date.now()})},truncate(path,len){if(len<0){throw new FS.ErrnoError(28)}var node;if(typeof path=="string"){var lookup=FS.lookupPath(path,{follow:true});node=lookup.node}else{node=path}FS.doTruncate(null,node,len)},ftruncate(fd,len){var stream=FS.getStreamChecked(fd);if(len<0||(stream.flags&2097155)===0){throw new FS.ErrnoError(28)}FS.doTruncate(stream,stream.node,len)},utime(path,atime,mtime){var lookup=FS.lookupPath(path,{follow:true});var node=lookup.node;var setattr=FS.checkOpExists(node.node_ops.setattr,63);setattr(node,{atime,mtime})},open(path,flags,mode=438){if(path===""){throw new FS.ErrnoError(44)}flags=FS_modeStringToFlags(flags);if(flags&64){mode=mode&4095|32768}else{mode=0}var node;var isDirPath;if(typeof path=="object"){node=path}else{isDirPath=path.endsWith("/");var lookup=FS.lookupPath(path,{follow:!(flags&131072),noent_okay:true});node=lookup.node;path=lookup.path}var created=false;if(flags&64){if(node){if(flags&128){throw new FS.ErrnoError(20)}}else if(isDirPath){throw new FS.ErrnoError(31)}else{node=FS.mknod(path,mode|511,0);created=true}}if(!node){throw new FS.ErrnoError(44)}if(FS.isChrdev(node.mode)){flags&=~512}if(flags&65536&&!FS.isDir(node.mode)){throw new FS.ErrnoError(54)}if(!created){var errCode=FS.mayOpen(node,flags);if(errCode){throw new FS.ErrnoError(errCode)}}if(flags&512&&!created){FS.truncate(node,0)}flags&=~(128|512|131072);var stream=FS.createStream({node,path:FS.getPath(node),flags,seekable:true,position:0,stream_ops:node.stream_ops,ungotten:[],error:false});if(stream.stream_ops.open){stream.stream_ops.open(stream)}if(created){FS.chmod(node,mode&511)}return stream},close(stream){if(FS.isClosed(stream)){throw new FS.ErrnoError(8)}if(stream.getdents)stream.getdents=null;try{if(stream.stream_ops.close){stream.stream_ops.close(stream)}}catch(e){throw e}finally{FS.closeStream(stream.fd)}stream.fd=null},isClosed(stream){return stream.fd===null},llseek(stream,offset,whence){if(FS.isClosed(stream)){throw new FS.ErrnoError(8)}if(!stream.seekable||!stream.stream_ops.llseek){throw new FS.ErrnoError(70)}if(whence!=0&&whence!=1&&whence!=2){throw new FS.ErrnoError(28)}stream.position=stream.stream_ops.llseek(stream,offset,whence);stream.ungotten=[];return stream.position},read(stream,buffer,offset,length,position){if(length<0||position<0){throw new FS.ErrnoError(28)}if(FS.isClosed(stream)){throw new FS.ErrnoError(8)}if((stream.flags&2097155)===1){throw new FS.ErrnoError(8)}if(FS.isDir(stream.node.mode)){throw new FS.ErrnoError(31)}if(!stream.stream_ops.read){throw new FS.ErrnoError(28)}var seeking=typeof position!="undefined";if(!seeking){position=stream.position}else if(!stream.seekable){throw new FS.ErrnoError(70)}var bytesRead=stream.stream_ops.read(stream,buffer,offset,length,position);if(!seeking)stream.position+=bytesRead;return bytesRead},write(stream,buffer,offset,length,position,canOwn){if(length<0||position<0){throw new FS.ErrnoError(28)}if(FS.isClosed(stream)){throw new FS.ErrnoError(8)}if((stream.flags&2097155)===0){throw new FS.ErrnoError(8)}if(FS.isDir(stream.node.mode)){throw new FS.ErrnoError(31)}if(!stream.stream_ops.write){throw new FS.ErrnoError(28)}if(stream.seekable&&stream.flags&1024){FS.llseek(stream,0,2)}var seeking=typeof position!="undefined";if(!seeking){position=stream.position}else if(!stream.seekable){throw new FS.ErrnoError(70)}var bytesWritten=stream.stream_ops.write(stream,buffer,offset,length,position,canOwn);if(!seeking)stream.position+=bytesWritten;return bytesWritten},mmap(stream,length,position,prot,flags){if((prot&2)!==0&&(flags&2)===0&&(stream.flags&2097155)!==2){throw new FS.ErrnoError(2)}if((stream.flags&2097155)===1){throw new FS.ErrnoError(2)}if(!stream.stream_ops.mmap){throw new FS.ErrnoError(43)}if(!length){throw new FS.ErrnoError(28)}return stream.stream_ops.mmap(stream,length,position,prot,flags)},msync(stream,buffer,offset,length,mmapFlags){if(!stream.stream_ops.msync){return 0}return stream.stream_ops.msync(stream,buffer,offset,length,mmapFlags)},ioctl(stream,cmd,arg){if(!stream.stream_ops.ioctl){throw new FS.ErrnoError(59)}return stream.stream_ops.ioctl(stream,cmd,arg)},readFile(path,opts={}){opts.flags=opts.flags??0;opts.encoding=opts.encoding??"binary";if(opts.encoding!=="utf8"&&opts.encoding!=="binary"){abort(`Invalid encoding type "${opts.encoding}"`)}var stream=FS.open(path,opts.flags);var stat=FS.stat(path);var length=stat.size;var buf=new Uint8Array(length);FS.read(stream,buf,0,length,0);if(opts.encoding==="utf8"){buf=UTF8ArrayToString(buf)}FS.close(stream);return buf},writeFile(path,data,opts={}){opts.flags=opts.flags??577;var stream=FS.open(path,opts.flags,opts.mode);data=FS_fileDataToTypedArray(data);FS.write(stream,data,0,data.byteLength,undefined,opts.canOwn);FS.close(stream)},cwd:()=>FS.currentPath,chdir(path){var lookup=FS.lookupPath(path,{follow:true});if(lookup.node===null){throw new FS.ErrnoError(44)}if(!FS.isDir(lookup.node.mode)){throw new FS.ErrnoError(54)}var errCode=FS.nodePermissions(lookup.node,"x");if(errCode){throw new FS.ErrnoError(errCode)}FS.currentPath=lookup.path},createDefaultDirectories(){FS.mkdir("/tmp");FS.mkdir("/home");FS.mkdir("/home/web_user")},createDefaultDevices(){FS.mkdir("/dev");FS.registerDevice(FS.makedev(1,3),{read:()=>0,write:(stream,buffer,offset,length,pos)=>length,llseek:()=>0});FS.mkdev("/dev/null",FS.makedev(1,3));TTY.register(FS.makedev(5,0),TTY.default_tty_ops);TTY.register(FS.makedev(6,0),TTY.default_tty1_ops);FS.mkdev("/dev/tty",FS.makedev(5,0));FS.mkdev("/dev/tty1",FS.makedev(6,0));var randomBuffer=new Uint8Array(1024),randomLeft=0;var randomByte=()=>{if(randomLeft===0){randomFill(randomBuffer);randomLeft=randomBuffer.byteLength}return randomBuffer[--randomLeft]};FS.createDevice("/dev","random",randomByte);FS.createDevice("/dev","urandom",randomByte);FS.mkdir("/dev/shm");FS.mkdir("/dev/shm/tmp")},createSpecialDirectories(){FS.mkdir("/proc");var proc_self=FS.mkdir("/proc/self");FS.mkdir("/proc/self/fd");FS.mount({mount(){var node=FS.createNode(proc_self,"fd",16895,73);node.stream_ops={llseek:MEMFS.stream_ops.llseek};node.node_ops={lookup(parent,name){var fd=+name;var stream=FS.getStreamChecked(fd);var ret={parent:null,mount:{mountpoint:"fake"},node_ops:{readlink:()=>stream.path},id:fd+1};ret.parent=ret;return ret},readdir(){return Array.from(FS.streams.entries()).filter(([k,v])=>v).map(([k,v])=>k.toString())}};return node}},{},"/proc/self/fd")},createStandardStreams(input,output,error){if(input){FS.createDevice("/dev","stdin",input)}else{FS.symlink("/dev/tty","/dev/stdin")}if(output){FS.createDevice("/dev","stdout",null,output)}else{FS.symlink("/dev/tty","/dev/stdout")}if(error){FS.createDevice("/dev","stderr",null,error)}else{FS.symlink("/dev/tty1","/dev/stderr")}var stdin=FS.open("/dev/stdin",0);var stdout=FS.open("/dev/stdout",1);var stderr=FS.open("/dev/stderr",1)},staticInit(){FS.nameTable=new Array(4096);FS.mount(MEMFS,{},"/");FS.createDefaultDirectories();FS.createDefaultDevices();FS.createSpecialDirectories();FS.filesystems={MEMFS}},init(input,output,error){FS.initialized=true;input??=Module["stdin"];output??=Module["stdout"];error??=Module["stderr"];FS.createStandardStreams(input,output,error)},quit(){FS.initialized=false;for(var stream of FS.streams){if(stream){FS.close(stream)}}},findObject(path,dontResolveLastLink){var ret=FS.analyzePath(path,dontResolveLastLink);if(!ret.exists){return null}return ret.object},analyzePath(path,dontResolveLastLink){try{var lookup=FS.lookupPath(path,{follow:!dontResolveLastLink});path=lookup.path}catch(e){}var ret={isRoot:false,exists:false,error:0,name:null,path:null,object:null,parentExists:false,parentPath:null,parentObject:null};try{var lookup=FS.lookupPath(path,{parent:true});ret.parentExists=true;ret.parentPath=lookup.path;ret.parentObject=lookup.node;ret.name=PATH.basename(path);lookup=FS.lookupPath(path,{follow:!dontResolveLastLink});ret.exists=true;ret.path=lookup.path;ret.object=lookup.node;ret.name=lookup.node.name;ret.isRoot=lookup.path==="/"}catch(e){ret.error=e.errno}return ret},createPath(parent,path,canRead,canWrite){parent=typeof parent=="string"?parent:FS.getPath(parent);var parts=path.split("/").reverse();while(parts.length){var part=parts.pop();if(!part)continue;var current=PATH.join2(parent,part);try{FS.mkdir(current)}catch(e){if(e.errno!=20)throw e}parent=current}return current},createFile(parent,name,properties,canRead,canWrite){var path=PATH.join2(typeof parent=="string"?parent:FS.getPath(parent),name);var mode=FS_getMode(canRead,canWrite);return FS.create(path,mode)},createDataFile(parent,name,data,canRead,canWrite,canOwn){var path=name;if(parent){parent=typeof parent=="string"?parent:FS.getPath(parent);path=name?PATH.join2(parent,name):parent}var mode=FS_getMode(canRead,canWrite);var node=FS.create(path,mode);if(data){data=FS_fileDataToTypedArray(data);FS.chmod(node,mode|146);var stream=FS.open(node,577);FS.write(stream,data,0,data.length,0,canOwn);FS.close(stream);FS.chmod(node,mode)}},createDevice(parent,name,input,output){var path=PATH.join2(typeof parent=="string"?parent:FS.getPath(parent),name);var mode=FS_getMode(!!input,!!output);FS.createDevice.major??=64;var dev=FS.makedev(FS.createDevice.major++,0);FS.registerDevice(dev,{open(stream){stream.seekable=false},close(stream){if(output?.buffer?.length){output(10)}},read(stream,buffer,offset,length,pos){var bytesRead=0;for(var i=0;i<length;i++){var result;try{result=input()}catch(e){throw new FS.ErrnoError(29)}if(result===undefined&&bytesRead===0){throw new FS.ErrnoError(6)}if(result===null||result===undefined)break;bytesRead++;buffer[offset+i]=result}if(bytesRead){stream.node.atime=Date.now()}return bytesRead},write(stream,buffer,offset,length,pos){for(var i=0;i<length;i++){try{output(buffer[offset+i])}catch(e){throw new FS.ErrnoError(29)}}if(length){stream.node.mtime=stream.node.ctime=Date.now()}return i}});return FS.mkdev(path,mode,dev)},forceLoadFile(obj){if(obj.isDevice||obj.isFolder||obj.link||obj.contents)return true;if(globalThis.XMLHttpRequest){abort("Lazy loading should have been performed (contents set) in createLazyFile, but it was not. Lazy loading only works in web workers. Use --embed-file or --preload-file in emcc on the main thread.")}else{try{obj.contents=readBinary(obj.url)}catch(e){throw new FS.ErrnoError(29)}}},createLazyFile(parent,name,url,canRead,canWrite){class LazyUint8Array{lengthKnown=false;chunks=[];get(idx){if(idx>this.length-1||idx<0){return undefined}var chunkOffset=idx%this.chunkSize;var chunkNum=idx/this.chunkSize|0;return this.getter(chunkNum)[chunkOffset]}setDataGetter(getter){this.getter=getter}cacheLength(){var xhr=new XMLHttpRequest;xhr.open("HEAD",url,false);xhr.send(null);if(!(xhr.status>=200&&xhr.status<300||xhr.status===304))abort("Couldn't load "+url+". Status: "+xhr.status);var datalength=Number(xhr.getResponseHeader("Content-length"));var header;var hasByteServing=(header=xhr.getResponseHeader("Accept-Ranges"))&&header==="bytes";var usesGzip=(header=xhr.getResponseHeader("Content-Encoding"))&&header==="gzip";var chunkSize=1024*1024;if(!hasByteServing)chunkSize=datalength;var doXHR=(from,to)=>{if(from>to)abort(`invalid range (${from}, ${to}) or no bytes requested!`);if(to>datalength-1)abort(`only ${datalength} bytes available! programmer error!`);var xhr=new XMLHttpRequest;xhr.open("GET",url,false);if(datalength!==chunkSize)xhr.setRequestHeader("Range","bytes="+from+"-"+to);xhr.responseType="arraybuffer";if(xhr.overrideMimeType){xhr.overrideMimeType("text/plain; charset=x-user-defined")}xhr.send(null);if(!(xhr.status>=200&&xhr.status<300||xhr.status===304))abort("Couldn't load "+url+". Status: "+xhr.status);if(xhr.response!==undefined){return new Uint8Array(xhr.response||[])}return intArrayFromString(xhr.responseText??"",true)};var lazyArray=this;lazyArray.setDataGetter(chunkNum=>{var start=chunkNum*chunkSize;var end=(chunkNum+1)*chunkSize-1;end=Math.min(end,datalength-1);if(typeof lazyArray.chunks[chunkNum]=="undefined"){lazyArray.chunks[chunkNum]=doXHR(start,end)}if(typeof lazyArray.chunks[chunkNum]=="undefined")abort("doXHR failed!");return lazyArray.chunks[chunkNum]});if(usesGzip||!datalength){chunkSize=datalength=1;datalength=this.getter(0).length;chunkSize=datalength;out("LazyFiles on gzip forces download of the whole file when length is accessed")}this._length=datalength;this._chunkSize=chunkSize;this.lengthKnown=true}get length(){if(!this.lengthKnown){this.cacheLength()}return this._length}get chunkSize(){if(!this.lengthKnown){this.cacheLength()}return this._chunkSize}}if(globalThis.XMLHttpRequest){if(!ENVIRONMENT_IS_WORKER)abort("Cannot do synchronous binary XHRs outside webworkers in modern browsers. Use --embed-file or --preload-file in emcc");var lazyArray=new LazyUint8Array;var properties={isDevice:false,contents:lazyArray}}else{var properties={isDevice:false,url}}var node=FS.createFile(parent,name,properties,canRead,canWrite);if(properties.contents){node.contents=properties.contents}else if(properties.url){node.contents=null;node.url=properties.url}Object.defineProperties(node,{usedBytes:{get:function(){return this.contents.length}}});var stream_ops={};for(const[key,fn]of Object.entries(node.stream_ops)){stream_ops[key]=(...args)=>{FS.forceLoadFile(node);return fn(...args)}}function writeChunks(stream,buffer,offset,length,position){var contents=stream.node.contents;if(position>=contents.length)return 0;var size=Math.min(contents.length-position,length);if(contents.slice){for(var i=0;i<size;i++){buffer[offset+i]=contents[position+i]}}else{for(var i=0;i<size;i++){buffer[offset+i]=contents.get(position+i)}}return size}stream_ops.read=(stream,buffer,offset,length,position)=>{FS.forceLoadFile(node);return writeChunks(stream,buffer,offset,length,position)};stream_ops.mmap=(stream,length,position,prot,flags)=>{FS.forceLoadFile(node);var ptr=mmapAlloc(length);if(!ptr){throw new FS.ErrnoError(48)}writeChunks(stream,HEAP8,ptr,length,position);return{ptr,allocated:true}};node.stream_ops=stream_ops;return node}};var SOCKFS={websocketArgs:{},callbacks:{},on(event,callback){SOCKFS.callbacks[event]=callback},emit(event,param){SOCKFS.callbacks[event]?.(param)},mount(mount){SOCKFS.websocketArgs=Module["websocket"]||{};(Module["websocket"]??={})["on"]=SOCKFS.on;return FS.createNode(null,"/",16895,0)},createSocket(family,type,protocol){if(family!=2){throw new FS.ErrnoError(5)}type&=~526336;if(type!=1&&type!=2){throw new FS.ErrnoError(28)}var streaming=type==1;if(streaming&&protocol&&protocol!=6){throw new FS.ErrnoError(66)}var sock={family,type,protocol,server:null,error:null,peers:{},pending:[],recv_queue:[],sock_ops:SOCKFS.websocket_sock_ops};var name=SOCKFS.nextname();var node=FS.createNode(SOCKFS.root,name,49152,0);node.sock=sock;var stream=FS.createStream({path:name,node,flags:2,seekable:false,stream_ops:SOCKFS.stream_ops});sock.stream=stream;return sock},getSocket(fd){var stream=FS.getStream(fd);if(!stream||!FS.isSocket(stream.node.mode)){return null}return stream.node.sock},stream_ops:{poll(stream){var sock=stream.node.sock;return sock.sock_ops.poll(sock)},ioctl(stream,request,varargs){var sock=stream.node.sock;return sock.sock_ops.ioctl(sock,request,varargs)},read(stream,buffer,offset,length,position){var sock=stream.node.sock;var msg=sock.sock_ops.recvmsg(sock,length);if(!msg){return 0}buffer.set(msg.buffer,offset);return msg.buffer.length},write(stream,buffer,offset,length,position){var sock=stream.node.sock;return sock.sock_ops.sendmsg(sock,buffer,offset,length)},close(stream){var sock=stream.node.sock;sock.sock_ops.close(sock)}},nextname(){if(!SOCKFS.nextname.current){SOCKFS.nextname.current=0}return`socket[${SOCKFS.nextname.current++}]`},websocket_sock_ops:{createPeer(sock,addr,port){var ws;if(typeof addr=="object"){ws=addr;addr=null;port=null}if(ws){if(ws._socket){addr=ws._socket.remoteAddress;port=ws._socket.remotePort}else{var result=/ws[s]?:\/\/([^:]+):(\d+)/.exec(ws.url);if(!result){throw new Error("WebSocket URL must be in the format ws(s)://address:port")}addr=result[1];port=parseInt(result[2],10)}}else{try{var url="ws://".replace("#","//");var subProtocols="binary";var opts=undefined;if(SOCKFS.websocketArgs["url"]){url=SOCKFS.websocketArgs["url"]}if(SOCKFS.websocketArgs["subprotocol"]){subProtocols=SOCKFS.websocketArgs["subprotocol"]}else if(SOCKFS.websocketArgs["subprotocol"]===null){subProtocols="null"}if(url==="ws://"||url==="wss://"){var parts=addr.split("/");url=url+parts[0]+":"+port+"/"+parts.slice(1).join("/")}if(subProtocols!=="null"){subProtocols=subProtocols.replace(/^ +| +$/g,"").split(/ *, */);opts=subProtocols}var WebSocketConstructor;if(ENVIRONMENT_IS_NODE){WebSocketConstructor=require("ws")}else{WebSocketConstructor=WebSocket}ws=new WebSocketConstructor(url,opts);ws.binaryType="arraybuffer"}catch(e){throw new FS.ErrnoError(23)}}var peer={addr,port,socket:ws,msg_send_queue:[]};SOCKFS.websocket_sock_ops.addPeer(sock,peer);SOCKFS.websocket_sock_ops.handlePeerEvents(sock,peer);if(sock.type===2&&typeof sock.sport!="undefined"){peer.msg_send_queue.push(new Uint8Array([255,255,255,255,"p".charCodeAt(0),"o".charCodeAt(0),"r".charCodeAt(0),"t".charCodeAt(0),(sock.sport&65280)>>8,sock.sport&255]))}return peer},getPeer(sock,addr,port){return sock.peers[addr+":"+port]},addPeer(sock,peer){sock.peers[peer.addr+":"+peer.port]=peer},removePeer(sock,peer){delete sock.peers[peer.addr+":"+peer.port]},handlePeerEvents(sock,peer){var first=true;function handleOpen(){sock.connecting=false;SOCKFS.emit("open",sock.stream.fd);try{var queued=peer.msg_send_queue.shift();while(queued){peer.socket.send(queued);queued=peer.msg_send_queue.shift()}}catch(e){peer.socket.close()}}function handleMessage(data){if(typeof data=="string"){var encoder=new TextEncoder;data=encoder.encode(data)}else{if(data.byteLength==0){return}data=new Uint8Array(data)}var wasfirst=first;first=false;if(wasfirst&&data.length===10&&data[0]===255&&data[1]===255&&data[2]===255&&data[3]===255&&data[4]==="p".charCodeAt(0)&&data[5]==="o".charCodeAt(0)&&data[6]==="r".charCodeAt(0)&&data[7]==="t".charCodeAt(0)){var newport=data[8]<<8|data[9];SOCKFS.websocket_sock_ops.removePeer(sock,peer);peer.port=newport;SOCKFS.websocket_sock_ops.addPeer(sock,peer);return}sock.recv_queue.push({addr:peer.addr,port:peer.port,data});SOCKFS.emit("message",sock.stream.fd)}if(ENVIRONMENT_IS_NODE){peer.socket.on("open",handleOpen);peer.socket.on("message",(data,isBinary)=>{if(!isBinary){return}handleMessage(new Uint8Array(data).buffer)});peer.socket.on("close",()=>SOCKFS.emit("close",sock.stream.fd));peer.socket.on("error",error=>{sock.error=14;SOCKFS.emit("error",[sock.stream.fd,sock.error,"ECONNREFUSED: Connection refused"])});return}peer.socket.onopen=handleOpen;peer.socket.onclose=()=>SOCKFS.emit("close",sock.stream.fd);peer.socket.onmessage=event=>handleMessage(event.data);peer.socket.onerror=error=>{sock.error=14;SOCKFS.emit("error",[sock.stream.fd,sock.error,"ECONNREFUSED: Connection refused"])}},poll(sock){if(sock.type===1&&sock.server){return sock.pending.length?64|1:0}var mask=0;var dest=sock.type===1?SOCKFS.websocket_sock_ops.getPeer(sock,sock.daddr,sock.dport):null;if(sock.recv_queue.length||!dest||dest&&dest.socket.readyState===dest.socket.CLOSING||dest&&dest.socket.readyState===dest.socket.CLOSED){mask|=64|1}if(!dest||dest&&dest.socket.readyState===dest.socket.OPEN){mask|=4}if(dest&&dest.socket.readyState===dest.socket.CLOSING||dest&&dest.socket.readyState===dest.socket.CLOSED){if(sock.connecting){mask|=4}else{mask|=16}}return mask},ioctl(sock,request,arg){switch(request){case 21531:var bytes=0;if(sock.recv_queue.length){bytes=sock.recv_queue[0].data.length}HEAP32[arg>>2]=bytes;return 0;case 21537:var on=HEAP32[arg>>2];if(on){sock.stream.flags|=2048}else{sock.stream.flags&=~2048}return 0;default:return 28}},close(sock){if(sock.server){try{sock.server.close()}catch(e){}sock.server=null}for(var peer of Object.values(sock.peers)){try{peer.socket.close()}catch(e){}SOCKFS.websocket_sock_ops.removePeer(sock,peer)}return 0},bind(sock,addr,port){if(typeof sock.saddr!="undefined"||typeof sock.sport!="undefined"){throw new FS.ErrnoError(28)}sock.saddr=addr;sock.sport=port;if(sock.type===2){if(sock.server){sock.server.close();sock.server=null}try{sock.sock_ops.listen(sock,0)}catch(e){if(!(e.name==="ErrnoError"))throw e;if(e.errno!==138)throw e}}},connect(sock,addr,port){if(sock.server){throw new FS.ErrnoError(138)}if(typeof sock.daddr!="undefined"&&typeof sock.dport!="undefined"){var dest=SOCKFS.websocket_sock_ops.getPeer(sock,sock.daddr,sock.dport);if(dest){if(dest.socket.readyState===dest.socket.CONNECTING){throw new FS.ErrnoError(7)}else{throw new FS.ErrnoError(30)}}}var peer=SOCKFS.websocket_sock_ops.createPeer(sock,addr,port);sock.daddr=peer.addr;sock.dport=peer.port;sock.connecting=true},listen(sock,backlog){if(!ENVIRONMENT_IS_NODE){throw new FS.ErrnoError(138)}if(sock.server){throw new FS.ErrnoError(28)}var WebSocketServer=require("ws").Server;var host=sock.saddr;sock.server=new WebSocketServer({host,port:sock.sport});SOCKFS.emit("listen",sock.stream.fd);sock.server.on("connection",ws=>{if(sock.type===1){var newsock=SOCKFS.createSocket(sock.family,sock.type,sock.protocol);var peer=SOCKFS.websocket_sock_ops.createPeer(newsock,ws);newsock.daddr=peer.addr;newsock.dport=peer.port;sock.pending.push(newsock);SOCKFS.emit("connection",newsock.stream.fd)}else{SOCKFS.websocket_sock_ops.createPeer(sock,ws);SOCKFS.emit("connection",sock.stream.fd)}});sock.server.on("close",()=>{SOCKFS.emit("close",sock.stream.fd);sock.server=null});sock.server.on("error",error=>{sock.error=23;SOCKFS.emit("error",[sock.stream.fd,sock.error,"EHOSTUNREACH: Host is unreachable"])})},accept(listensock){if(!listensock.server||!listensock.pending.length){throw new FS.ErrnoError(28)}var newsock=listensock.pending.shift();newsock.stream.flags=listensock.stream.flags;return newsock},getname(sock,peer){var addr,port;if(peer){if(sock.daddr===undefined||sock.dport===undefined){throw new FS.ErrnoError(53)}addr=sock.daddr;port=sock.dport}else{addr=sock.saddr||0;port=sock.sport||0}return{addr,port}},sendmsg(sock,buffer,offset,length,addr,port){if(sock.type===2){if(addr===undefined||port===undefined){addr=sock.daddr;port=sock.dport}if(addr===undefined||port===undefined){throw new FS.ErrnoError(17)}}else{addr=sock.daddr;port=sock.dport}var dest=SOCKFS.websocket_sock_ops.getPeer(sock,addr,port);if(sock.type===1){if(!dest||dest.socket.readyState===dest.socket.CLOSING||dest.socket.readyState===dest.socket.CLOSED){throw new FS.ErrnoError(53)}}if(ArrayBuffer.isView(buffer)){offset+=buffer.byteOffset;buffer=buffer.buffer}var data=buffer.slice(offset,offset+length);if(!dest||dest.socket.readyState!==dest.socket.OPEN){if(sock.type===2){if(!dest||dest.socket.readyState===dest.socket.CLOSING||dest.socket.readyState===dest.socket.CLOSED){dest=SOCKFS.websocket_sock_ops.createPeer(sock,addr,port)}}dest.msg_send_queue.push(data);return length}try{dest.socket.send(data);return length}catch(e){throw new FS.ErrnoError(28)}},recvmsg(sock,length){if(sock.type===1&&sock.server){throw new FS.ErrnoError(53)}var queued=sock.recv_queue.shift();if(!queued){if(sock.type===1){var dest=SOCKFS.websocket_sock_ops.getPeer(sock,sock.daddr,sock.dport);if(!dest){throw new FS.ErrnoError(53)}if(dest.socket.readyState===dest.socket.CLOSING||dest.socket.readyState===dest.socket.CLOSED){return null}throw new FS.ErrnoError(6)}throw new FS.ErrnoError(6)}var queuedLength=queued.data.byteLength||queued.data.length;var queuedOffset=queued.data.byteOffset||0;var queuedBuffer=queued.data.buffer||queued.data;var bytesRead=Math.min(length,queuedLength);var res={buffer:new Uint8Array(queuedBuffer,queuedOffset,bytesRead),addr:queued.addr,port:queued.port};if(sock.type===1&&bytesRead<queuedLength){var bytesRemaining=queuedLength-bytesRead;queued.data=new Uint8Array(queuedBuffer,queuedOffset+bytesRead,bytesRemaining);sock.recv_queue.unshift(queued)}return res}}};var getSocketFromFD=fd=>{var socket=SOCKFS.getSocket(fd);if(!socket)throw new FS.ErrnoError(8);return socket};var inetPton4=str=>{var b=str.split(".");for(var i=0;i<4;i++){var tmp=Number(b[i]);if(isNaN(tmp))return null;b[i]=tmp}return(b[0]|b[1]<<8|b[2]<<16|b[3]<<24)>>>0};var inetPton6=str=>{var words;var w,offset,z;var valid6regx=/^((?=.*::)(?!.*::.+::)(::)?([\dA-F]{1,4}:(:|\b)|){5}|([\dA-F]{1,4}:){6})((([\dA-F]{1,4}((?!\3)::|:\b|$))|(?!\2\3)){2}|(((2[0-4]|1\d|[1-9])?\d|25[0-5])\.?\b){4})$/i;var parts=[];if(!valid6regx.test(str)){return null}if(str==="::"){return[0,0,0,0,0,0,0,0]}if(str.startsWith("::")){str=str.replace("::","Z:")}else{str=str.replace("::",":Z:")}if(str.indexOf(".")>0){str=str.replace(new RegExp("[.]","g"),":");words=str.split(":");words[words.length-4]=Number(words[words.length-4])+Number(words[words.length-3])*256;words[words.length-3]=Number(words[words.length-2])+Number(words[words.length-1])*256;words=words.slice(0,words.length-2)}else{words=str.split(":")}offset=0;z=0;for(w=0;w<words.length;w++){if(typeof words[w]=="string"){if(words[w]==="Z"){for(z=0;z<8-words.length+1;z++){parts[w+z]=0}offset=z-1}else{parts[w+offset]=_htons(parseInt(words[w],16))}}else{parts[w+offset]=words[w]}}return[parts[1]<<16|parts[0],parts[3]<<16|parts[2],parts[5]<<16|parts[4],parts[7]<<16|parts[6]]};var zeroMemory=(ptr,size)=>HEAPU8.fill(0,ptr,ptr+size);var writeSockaddr=(sa,family,addr,port,addrlen)=>{switch(family){case 2:addr=inetPton4(addr);zeroMemory(sa,16);if(addrlen){HEAP32[addrlen>>2]=16}HEAP16[sa>>1]=family;HEAP32[sa+4>>2]=addr;HEAP16[sa+2>>1]=_htons(port);break;case 10:addr=inetPton6(addr);zeroMemory(sa,28);if(addrlen){HEAP32[addrlen>>2]=28}HEAP32[sa>>2]=family;HEAP32[sa+8>>2]=addr[0];HEAP32[sa+12>>2]=addr[1];HEAP32[sa+16>>2]=addr[2];HEAP32[sa+20>>2]=addr[3];HEAP16[sa+2>>1]=_htons(port);break;default:return 5}return 0};var DNS={address_map:{id:1,addrs:{},names:{}},lookup_name(name){var res=inetPton4(name);if(res!==null){return name}res=inetPton6(name);if(res!==null){return name}var addr;if(DNS.address_map.addrs[name]){addr=DNS.address_map.addrs[name]}else{var id=DNS.address_map.id++;addr="172.29."+(id&255)+"."+(id&65280);DNS.address_map.names[addr]=name;DNS.address_map.addrs[name]=addr}return addr},lookup_addr(addr){if(DNS.address_map.names[addr]){return DNS.address_map.names[addr]}return null}};function ___syscall_accept4(fd,addr,addrlen,flags,d1,d2){try{var sock=getSocketFromFD(fd);var newsock=sock.sock_ops.accept(sock);if(addr){var errno=writeSockaddr(addr,newsock.family,DNS.lookup_name(newsock.daddr),newsock.dport,addrlen)}return newsock.stream.fd}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}var inetNtop4=addr=>(addr&255)+"."+(addr>>8&255)+"."+(addr>>16&255)+"."+(addr>>24&255);var inetNtop6=ints=>{var str="";var word=0;var longest=0;var lastzero=0;var zstart=0;var len=0;var i=0;var parts=[ints[0]&65535,ints[0]>>16,ints[1]&65535,ints[1]>>16,ints[2]&65535,ints[2]>>16,ints[3]&65535,ints[3]>>16];var hasipv4=true;var v4part="";for(i=0;i<5;i++){if(parts[i]!==0){hasipv4=false;break}}if(hasipv4){v4part=inetNtop4(parts[6]|parts[7]<<16);if(parts[5]===-1){str="::ffff:";str+=v4part;return str}if(parts[5]===0){str="::";if(v4part==="0.0.0.0")v4part="";if(v4part==="0.0.0.1")v4part="1";str+=v4part;return str}}for(word=0;word<8;word++){if(parts[word]===0){if(word-lastzero>1){len=0}lastzero=word;len++}if(len>longest){longest=len;zstart=word-longest+1}}for(word=0;word<8;word++){if(longest>1){if(parts[word]===0&&word>=zstart&&word<zstart+longest){if(word===zstart){str+=":";if(zstart===0)str+=":"}continue}}str+=Number(_ntohs(parts[word]&65535)).toString(16);str+=word<7?":":""}return str};var readSockaddr=(sa,salen)=>{var family=HEAP16[sa>>1];var port=_ntohs(HEAPU16[sa+2>>1]);var addr;switch(family){case 2:if(salen!==16){return{errno:28}}addr=HEAP32[sa+4>>2];addr=inetNtop4(addr);break;case 10:if(salen!==28){return{errno:28}}addr=[HEAP32[sa+8>>2],HEAP32[sa+12>>2],HEAP32[sa+16>>2],HEAP32[sa+20>>2]];addr=inetNtop6(addr);break;default:return{errno:5}}return{family,addr,port}};var getSocketAddress=(addrp,addrlen)=>{var info=readSockaddr(addrp,addrlen);if(info.errno)throw new FS.ErrnoError(info.errno);info.addr=DNS.lookup_addr(info.addr)||info.addr;return info};function ___syscall_bind(fd,addr,addrlen,d1,d2,d3){try{var sock=getSocketFromFD(fd);var info=getSocketAddress(addr,addrlen);sock.sock_ops.bind(sock,info.addr,info.port);return 0}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}function ___syscall_connect(fd,addr,addrlen,d1,d2,d3){try{var sock=getSocketFromFD(fd);var info=getSocketAddress(addr,addrlen);sock.sock_ops.connect(sock,info.addr,info.port);return 0}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}var UTF8ToString=(ptr,maxBytesToRead,ignoreNul)=>ptr?UTF8ArrayToString(HEAPU8,ptr,maxBytesToRead,ignoreNul):"";var SYSCALLS={currentUmask:18,calculateAt(dirfd,path,allowEmpty){if(PATH.isAbs(path)){return path}var dir;if(dirfd===-100){dir=FS.cwd()}else{var dirstream=SYSCALLS.getStreamFromFD(dirfd);dir=dirstream.path}if(path.length==0){if(!allowEmpty){throw new FS.ErrnoError(44)}return dir}return dir+"/"+path},writeStat(buf,stat){HEAPU32[buf>>2]=stat.dev;HEAPU32[buf+4>>2]=stat.mode;HEAPU32[buf+8>>2]=stat.nlink;HEAPU32[buf+12>>2]=stat.uid;HEAPU32[buf+16>>2]=stat.gid;HEAPU32[buf+20>>2]=stat.rdev;HEAP64[buf+24>>3]=BigInt(stat.size);HEAP32[buf+32>>2]=4096;HEAP32[buf+36>>2]=stat.blocks;var atime=stat.atime.getTime();var mtime=stat.mtime.getTime();var ctime=stat.ctime.getTime();HEAP64[buf+40>>3]=BigInt(Math.floor(atime/1e3));HEAPU32[buf+48>>2]=atime%1e3*1e3*1e3;HEAP64[buf+56>>3]=BigInt(Math.floor(mtime/1e3));HEAPU32[buf+64>>2]=mtime%1e3*1e3*1e3;HEAP64[buf+72>>3]=BigInt(Math.floor(ctime/1e3));HEAPU32[buf+80>>2]=ctime%1e3*1e3*1e3;HEAP64[buf+88>>3]=BigInt(stat.ino);return 0},writeStatFs(buf,stats){HEAPU32[buf+4>>2]=stats.bsize;HEAPU32[buf+60>>2]=stats.bsize;HEAP64[buf+8>>3]=BigInt(stats.blocks);HEAP64[buf+16>>3]=BigInt(stats.bfree);HEAP64[buf+24>>3]=BigInt(stats.bavail);HEAP64[buf+32>>3]=BigInt(stats.files);HEAP64[buf+40>>3]=BigInt(stats.ffree);HEAPU32[buf+48>>2]=stats.fsid;HEAPU32[buf+64>>2]=stats.flags;HEAPU32[buf+56>>2]=stats.namelen},doMsync(addr,stream,len,flags,offset){if(!FS.isFile(stream.node.mode)){throw new FS.ErrnoError(43)}if(flags&2){return 0}var buffer=HEAPU8.slice(addr,addr+len);FS.msync(stream,buffer,offset,len,flags)},getStreamFromFD(fd){var stream=FS.getStreamChecked(fd);return stream},varargs:undefined,getStr(ptr){var ret=UTF8ToString(ptr);return ret}};function ___syscall_dup3(fd,newfd,flags){try{if(fd===newfd)return-28;if(flags&~524288)return-28;var old=SYSCALLS.getStreamFromFD(fd);if(newfd<0||newfd>=FS.MAX_OPEN_FDS)return-8;var existing=FS.getStream(newfd);if(existing)FS.close(existing);var stream=FS.dupStream(old,newfd);if(flags&524288){stream.flags|=524288}return stream.fd}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}var syscallGetVarargI=()=>{var ret=HEAP32[+SYSCALLS.varargs>>2];SYSCALLS.varargs+=4;return ret};var syscallGetVarargP=syscallGetVarargI;function ___syscall_fcntl64(fd,cmd,varargs){SYSCALLS.varargs=varargs;try{var stream=SYSCALLS.getStreamFromFD(fd);switch(cmd){case 0:{var arg=syscallGetVarargI();if(arg<0){return-28}while(FS.streams[arg]){arg++}var newStream;newStream=FS.dupStream(stream,arg);return newStream.fd}case 1:case 2:return 0;case 3:return stream.flags;case 4:{var arg=syscallGetVarargI();var mask=289792;stream.flags=stream.flags&~mask|arg&mask;return 0}case 12:{var arg=syscallGetVarargP();var offset=0;HEAP16[arg+offset>>1]=2;return 0}case 13:case 14:return 0}return-28}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}function ___syscall_fstat64(fd,buf){try{return SYSCALLS.writeStat(buf,FS.fstat(fd))}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}var stringToUTF8=(str,outPtr,maxBytesToWrite)=>stringToUTF8Array(str,HEAPU8,outPtr,maxBytesToWrite);function ___syscall_getcwd(buf,size){try{if(size===0)return-28;var cwd=FS.cwd();var cwdLengthInBytes=lengthBytesUTF8(cwd)+1;if(size<cwdLengthInBytes)return-68;stringToUTF8(cwd,buf,size);return cwdLengthInBytes}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}function ___syscall_ioctl(fd,op,varargs){SYSCALLS.varargs=varargs;try{var stream=SYSCALLS.getStreamFromFD(fd);switch(op){case 21509:{if(!stream.tty)return-59;return 0}case 21505:{if(!stream.tty)return-59;if(stream.tty.ops.ioctl_tcgets){var termios=stream.tty.ops.ioctl_tcgets(stream);var argp=syscallGetVarargP();HEAP32[argp>>2]=termios.c_iflag||0;HEAP32[argp+4>>2]=termios.c_oflag||0;HEAP32[argp+8>>2]=termios.c_cflag||0;HEAP32[argp+12>>2]=termios.c_lflag||0;for(var i=0;i<32;i++){HEAP8[argp+i+17]=termios.c_cc[i]||0}return 0}return 0}case 21510:case 21511:case 21512:{if(!stream.tty)return-59;return 0}case 21506:case 21507:case 21508:{if(!stream.tty)return-59;if(stream.tty.ops.ioctl_tcsets){var argp=syscallGetVarargP();var c_iflag=HEAP32[argp>>2];var c_oflag=HEAP32[argp+4>>2];var c_cflag=HEAP32[argp+8>>2];var c_lflag=HEAP32[argp+12>>2];var c_cc=[];for(var i=0;i<32;i++){c_cc.push(HEAP8[argp+i+17])}return stream.tty.ops.ioctl_tcsets(stream.tty,op,{c_iflag,c_oflag,c_cflag,c_lflag,c_cc})}return 0}case 21519:{if(!stream.tty)return-59;var argp=syscallGetVarargP();HEAP32[argp>>2]=0;return 0}case 21520:{if(!stream.tty)return-59;return-28}case 21537:case 21531:{var argp=syscallGetVarargP();return FS.ioctl(stream,op,argp)}case 21523:{if(!stream.tty)return-59;if(stream.tty.ops.ioctl_tiocgwinsz){var winsize=stream.tty.ops.ioctl_tiocgwinsz(stream.tty);var argp=syscallGetVarargP();HEAP16[argp>>1]=winsize[0];HEAP16[argp+2>>1]=winsize[1]}return 0}case 21524:{if(!stream.tty)return-59;return 0}case 21515:{if(!stream.tty)return-59;return 0}default:return-28}}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}function ___syscall_listen(fd,backlog){try{var sock=getSocketFromFD(fd);sock.sock_ops.listen(sock,backlog);return 0}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}function ___syscall_lstat64(path,buf){try{path=SYSCALLS.getStr(path);return SYSCALLS.writeStat(buf,FS.lstat(path))}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}function ___syscall_newfstatat(dirfd,path,buf,flags){try{path=SYSCALLS.getStr(path);var nofollow=flags&256;var allowEmpty=flags&4096;flags=flags&~6400;path=SYSCALLS.calculateAt(dirfd,path,allowEmpty);return SYSCALLS.writeStat(buf,nofollow?FS.lstat(path):FS.stat(path))}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}function ___syscall_openat(dirfd,path,flags,varargs){SYSCALLS.varargs=varargs;try{path=SYSCALLS.getStr(path);path=SYSCALLS.calculateAt(dirfd,path);var mode=varargs?syscallGetVarargI():0;if(flags&64){mode&=~SYSCALLS.currentUmask}return FS.open(path,flags,mode).fd}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}var PIPEFS={BUCKET_BUFFER_SIZE:8192,mount(mount){return FS.createNode(null,"/",16384|511,0)},createPipe(){var pipe={buckets:[],refcnt:2,timestamp:new Date};pipe.buckets.push({buffer:new Uint8Array(PIPEFS.BUCKET_BUFFER_SIZE),offset:0,roffset:0});var rName=PIPEFS.nextname();var wName=PIPEFS.nextname();var rNode=FS.createNode(PIPEFS.root,rName,4096,0);var wNode=FS.createNode(PIPEFS.root,wName,4096,0);rNode.pipe=pipe;wNode.pipe=pipe;var readableStream=FS.createStream({path:rName,node:rNode,flags:0,seekable:false,stream_ops:PIPEFS.stream_ops});rNode.stream=readableStream;var writableStream=FS.createStream({path:wName,node:wNode,flags:1,seekable:false,stream_ops:PIPEFS.stream_ops});wNode.stream=writableStream;return{readable_fd:readableStream.fd,writable_fd:writableStream.fd}},stream_ops:{getattr(stream){var node=stream.node;var timestamp=node.pipe.timestamp;return{dev:14,ino:node.id,mode:4480,nlink:1,uid:0,gid:0,rdev:0,size:0,atime:timestamp,mtime:timestamp,ctime:timestamp,blksize:4096,blocks:0}},poll(stream,timeout,notifyCallback){var pipe=stream.node.pipe;if((stream.flags&2097155)===1){return 256|4}for(var bucket of pipe.buckets){if(bucket.offset-bucket.roffset>0){return 64|1}}return 0},dup(stream){stream.node.pipe.refcnt++},ioctl(stream,request,argp){if(request==21531){var pipe=stream.node.pipe;var currentLength=0;for(var bucket of pipe.buckets){currentLength+=bucket.offset-bucket.roffset}HEAP32[argp>>2]=currentLength;return 0}return 28},fsync(stream){return 28},read(stream,buffer,offset,length,position){var pipe=stream.node.pipe;var currentLength=0;for(var bucket of pipe.buckets){currentLength+=bucket.offset-bucket.roffset}var data=buffer.subarray(offset,offset+length);if(length<=0){return 0}if(currentLength==0){throw new FS.ErrnoError(6)}var toRead=Math.min(currentLength,length);var totalRead=toRead;var toRemove=0;for(var bucket of pipe.buckets){var bucketSize=bucket.offset-bucket.roffset;if(toRead<=bucketSize){var tmpSlice=bucket.buffer.subarray(bucket.roffset,bucket.offset);if(toRead<bucketSize){tmpSlice=tmpSlice.subarray(0,toRead);bucket.roffset+=toRead}else{toRemove++}data.set(tmpSlice);break}else{var tmpSlice=bucket.buffer.subarray(bucket.roffset,bucket.offset);data.set(tmpSlice);data=data.subarray(tmpSlice.byteLength);toRead-=tmpSlice.byteLength;toRemove++}}if(toRemove&&toRemove==pipe.buckets.length){toRemove--;pipe.buckets[toRemove].offset=0;pipe.buckets[toRemove].roffset=0}pipe.buckets.splice(0,toRemove);return totalRead},write(stream,buffer,offset,length,position){var pipe=stream.node.pipe;var data=buffer.subarray(offset,offset+length);var dataLen=data.byteLength;if(dataLen<=0){return 0}var currBucket=null;if(pipe.buckets.length==0){currBucket={buffer:new Uint8Array(PIPEFS.BUCKET_BUFFER_SIZE),offset:0,roffset:0};pipe.buckets.push(currBucket)}else{currBucket=pipe.buckets[pipe.buckets.length-1]}var freeBytesInCurrBuffer=PIPEFS.BUCKET_BUFFER_SIZE-currBucket.offset;if(freeBytesInCurrBuffer>=dataLen){currBucket.buffer.set(data,currBucket.offset);currBucket.offset+=dataLen;return dataLen}else if(freeBytesInCurrBuffer>0){currBucket.buffer.set(data.subarray(0,freeBytesInCurrBuffer),currBucket.offset);currBucket.offset+=freeBytesInCurrBuffer;data=data.subarray(freeBytesInCurrBuffer,data.byteLength)}var numBuckets=data.byteLength/PIPEFS.BUCKET_BUFFER_SIZE|0;var remElements=data.byteLength%PIPEFS.BUCKET_BUFFER_SIZE;for(var i=0;i<numBuckets;i++){var newBucket={buffer:new Uint8Array(PIPEFS.BUCKET_BUFFER_SIZE),offset:PIPEFS.BUCKET_BUFFER_SIZE,roffset:0};pipe.buckets.push(newBucket);newBucket.buffer.set(data.subarray(0,PIPEFS.BUCKET_BUFFER_SIZE));data=data.subarray(PIPEFS.BUCKET_BUFFER_SIZE,data.byteLength)}if(remElements>0){var newBucket={buffer:new Uint8Array(PIPEFS.BUCKET_BUFFER_SIZE),offset:data.byteLength,roffset:0};pipe.buckets.push(newBucket);newBucket.buffer.set(data)}return dataLen},close(stream){var pipe=stream.node.pipe;pipe.refcnt--;if(pipe.refcnt===0){pipe.buckets=null}}},nextname(){if(!PIPEFS.nextname.current){PIPEFS.nextname.current=0}return"pipe["+PIPEFS.nextname.current+++"]"}};function ___syscall_pipe2(fdPtr,flags){try{if(fdPtr==0){throw new FS.ErrnoError(21)}var validFlags=524288|2048;if(flags&~validFlags){throw new FS.ErrnoError(138)}var res=PIPEFS.createPipe();if(flags&2048){FS.getStream(res.readable_fd).flags|=2048;FS.getStream(res.writable_fd).flags|=2048}HEAP32[fdPtr>>2]=res.readable_fd;HEAP32[fdPtr+4>>2]=res.writable_fd;return 0}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}function ___syscall_renameat(olddirfd,oldpath,newdirfd,newpath){try{oldpath=SYSCALLS.getStr(oldpath);newpath=SYSCALLS.getStr(newpath);oldpath=SYSCALLS.calculateAt(olddirfd,oldpath);newpath=SYSCALLS.calculateAt(newdirfd,newpath);FS.rename(oldpath,newpath);return 0}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}function ___syscall_socket(domain,type,protocol){try{var sock=SOCKFS.createSocket(domain,type,protocol);return sock.stream.fd}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}function ___syscall_stat64(path,buf){try{path=SYSCALLS.getStr(path);return SYSCALLS.writeStat(buf,FS.stat(path))}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}function ___syscall_unlinkat(dirfd,path,flags){try{path=SYSCALLS.getStr(path);path=SYSCALLS.calculateAt(dirfd,path);if(!flags){FS.unlink(path)}else if(flags===512){FS.rmdir(path)}else{return-28}return 0}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}var __emscripten_lookup_name=name=>{var nameString=UTF8ToString(name);return inetPton4(DNS.lookup_name(nameString))};var __emscripten_throw_longjmp=()=>{throw new EmscriptenSjLj};var _emscripten_get_now=()=>performance.now();var _emscripten_date_now=()=>Date.now();var nowIsMonotonic=1;var checkWasiClock=clock_id=>clock_id>=0&&clock_id<=3;var INT53_MAX=9007199254740992;var INT53_MIN=-9007199254740992;var bigintToI53Checked=num=>num<INT53_MIN||num>INT53_MAX?NaN:Number(num);function _clock_time_get(clk_id,ignored_precision,ptime){ignored_precision=bigintToI53Checked(ignored_precision);if(!checkWasiClock(clk_id)){return 28}var now;if(clk_id===0){now=_emscripten_date_now()}else if(nowIsMonotonic){now=_emscripten_get_now()}else{return 52}var nsec=Math.round(now*1e3*1e3);HEAP64[ptime>>3]=BigInt(nsec);return 0}var getHeapMax=()=>2147483648;var alignMemory=(size,alignment)=>Math.ceil(size/alignment)*alignment;var growMemory=size=>{var oldHeapSize=wasmMemory.buffer.byteLength;var pages=(size-oldHeapSize+65535)/65536|0;try{wasmMemory.grow(pages);updateMemoryViews();return 1}catch(e){}};var _emscripten_resize_heap=requestedSize=>{var oldSize=HEAPU8.length;requestedSize>>>=0;var maxHeapSize=getHeapMax();if(requestedSize>maxHeapSize){return false}for(var cutDown=1;cutDown<=4;cutDown*=2){var overGrownHeapSize=oldSize*(1+.2/cutDown);overGrownHeapSize=Math.min(overGrownHeapSize,requestedSize+100663296);var newSize=Math.min(maxHeapSize,alignMemory(Math.max(requestedSize,overGrownHeapSize),65536));var replacement=growMemory(newSize);if(replacement){return true}}return false};var ENV={};var getExecutableName=()=>thisProgram;var getEnvStrings=()=>{if(!getEnvStrings.strings){var lang=(globalThis.navigator?.language??"C").replace("-","_")+".UTF-8";var env={USER:"web_user",LOGNAME:"web_user",PATH:"/",PWD:"/",HOME:"/home/web_user",LANG:lang,_:getExecutableName()};for(var x in ENV){if(ENV[x]===undefined)delete env[x];else env[x]=ENV[x]}var strings=[];for(var x in env){strings.push(`${x}=${env[x]}`)}getEnvStrings.strings=strings}return getEnvStrings.strings};var _environ_get=(__environ,environ_buf)=>{var bufSize=0;var envp=0;for(var string of getEnvStrings()){var ptr=environ_buf+bufSize;HEAPU32[__environ+envp>>2]=ptr;bufSize+=stringToUTF8(string,ptr,Infinity)+1;envp+=4}return 0};var _environ_sizes_get=(penviron_count,penviron_buf_size)=>{var strings=getEnvStrings();HEAPU32[penviron_count>>2]=strings.length;var bufSize=0;for(var string of strings){bufSize+=lengthBytesUTF8(string)+1}HEAPU32[penviron_buf_size>>2]=bufSize;return 0};var runtimeKeepaliveCounter=0;var keepRuntimeAlive=()=>noExitRuntime||runtimeKeepaliveCounter>0;var _proc_exit=code=>{EXITSTATUS=code;if(!keepRuntimeAlive()){Module["onExit"]?.(code);ABORT=true}quit_(code,new ExitStatus(code))};var exitJS=(status,implicit)=>{EXITSTATUS=status;_proc_exit(status)};var _exit=exitJS;function _fd_close(fd){try{var stream=SYSCALLS.getStreamFromFD(fd);FS.close(stream);return 0}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return e.errno}}function _fd_fdstat_get(fd,pbuf){try{var rightsBase=0;var rightsInheriting=0;var flags=0;{var stream=SYSCALLS.getStreamFromFD(fd);var type=stream.tty?2:FS.isDir(stream.mode)?3:FS.isLink(stream.mode)?7:4}HEAP8[pbuf]=type;HEAP16[pbuf+2>>1]=flags;HEAP64[pbuf+8>>3]=BigInt(rightsBase);HEAP64[pbuf+16>>3]=BigInt(rightsInheriting);return 0}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return e.errno}}var doReadv=(stream,iov,iovcnt,offset)=>{var ret=0;for(var i=0;i<iovcnt;i++){var ptr=HEAPU32[iov>>2];var len=HEAPU32[iov+4>>2];iov+=8;var curr=FS.read(stream,HEAP8,ptr,len,offset);if(curr<0)return-1;ret+=curr;if(curr<len)break;if(typeof offset!="undefined"){offset+=curr}}return ret};function _fd_read(fd,iov,iovcnt,pnum){try{var stream=SYSCALLS.getStreamFromFD(fd);var num=doReadv(stream,iov,iovcnt);HEAPU32[pnum>>2]=num;return 0}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return e.errno}}function _fd_seek(fd,offset,whence,newOffset){offset=bigintToI53Checked(offset);try{if(isNaN(offset))return 22;var stream=SYSCALLS.getStreamFromFD(fd);FS.llseek(stream,offset,whence);HEAP64[newOffset>>3]=BigInt(stream.position);if(stream.getdents&&offset===0&&whence===0)stream.getdents=null;return 0}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return e.errno}}var doWritev=(stream,iov,iovcnt,offset)=>{var ret=0;for(var i=0;i<iovcnt;i++){var ptr=HEAPU32[iov>>2];var len=HEAPU32[iov+4>>2];iov+=8;var curr=FS.write(stream,HEAP8,ptr,len,offset);if(curr<0)return-1;ret+=curr;if(curr<len){break}if(typeof offset!="undefined"){offset+=curr}}return ret};function _fd_write(fd,iov,iovcnt,pnum){try{var stream=SYSCALLS.getStreamFromFD(fd);var num=doWritev(stream,iov,iovcnt);HEAPU32[pnum>>2]=num;return 0}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return e.errno}}var wasmTableMirror=[];var getWasmTableEntry=funcPtr=>{var func=wasmTableMirror[funcPtr];if(!func){wasmTableMirror[funcPtr]=func=wasmTable.get(funcPtr)}return func};var getCFunc=ident=>{var func=Module["_"+ident];return func};var writeArrayToMemory=(array,buffer)=>{HEAP8.set(array,buffer)};var stackAlloc=sz=>__emscripten_stack_alloc(sz);var stringToUTF8OnStack=str=>{var size=lengthBytesUTF8(str)+1;var ret=stackAlloc(size);stringToUTF8(str,ret,size);return ret};var ccall=(ident,returnType,argTypes,args,opts)=>{var toC={string:str=>{var ret=0;if(str!==null&&str!==undefined&&str!==0){ret=stringToUTF8OnStack(str)}return ret},array:arr=>{var ret=stackAlloc(arr.length);writeArrayToMemory(arr,ret);return ret}};function convertReturnValue(ret){if(returnType==="string"){return UTF8ToString(ret)}if(returnType==="boolean")return Boolean(ret);return ret}var func=getCFunc(ident);var cArgs=[];var stack=0;if(args){for(var i=0;i<args.length;i++){var converter=toC[argTypes[i]];if(converter){if(stack===0)stack=stackSave();cArgs[i]=converter(args[i])}else{cArgs[i]=args[i]}}}var ret=func(...cArgs);function onDone(ret){if(stack!==0)stackRestore(stack);return convertReturnValue(ret)}ret=onDone(ret);return ret};var cwrap=(ident,returnType,argTypes,opts)=>{var numericArgs=!argTypes||argTypes.every(type=>type==="number"||type==="boolean");var numericRet=returnType!=="string";if(numericRet&&numericArgs&&!opts){return getCFunc(ident)}return(...args)=>ccall(ident,returnType,argTypes,args,opts)};FS.createPreloadedFile=FS_createPreloadedFile;FS.preloadFile=FS_preloadFile;FS.staticInit();{if(Module["noExitRuntime"])noExitRuntime=Module["noExitRuntime"];if(Module["preloadPlugins"])preloadPlugins=Module["preloadPlugins"];if(Module["print"])out=Module["print"];if(Module["printErr"])err=Module["printErr"];if(Module["wasmBinary"])wasmBinary=Module["wasmBinary"];if(Module["arguments"])programArgs=Module["arguments"];if(Module["thisProgram"])thisProgram=Module["thisProgram"];if(Module["preInit"]){if(typeof Module["preInit"]=="function")Module["preInit"]=[Module["preInit"]];while(Module["preInit"].length>0){Module["preInit"].shift()()}}}Module["ccall"]=ccall;Module["cwrap"]=cwrap;Module["UTF8ToString"]=UTF8ToString;Module["stringToUTF8"]=stringToUTF8;Module["lengthBytesUTF8"]=lengthBytesUTF8;var _malloc,_free,_htons,_lumbda_wasm_init,_lumbda_wasm_eval,_lumbda_wasm_free_result,_ntohs,_setThrew,__emscripten_stack_restore,__emscripten_stack_alloc,_emscripten_stack_get_current,memory,__indirect_function_table,wasmMemory,wasmTable;function assignWasmExports(wasmExports){_malloc=Module["_malloc"]=wasmExports["malloc"];_free=Module["_free"]=wasmExports["free"];_htons=wasmExports["htons"];_lumbda_wasm_init=Module["_lumbda_wasm_init"]=wasmExports["lumbda_wasm_init"];_lumbda_wasm_eval=Module["_lumbda_wasm_eval"]=wasmExports["lumbda_wasm_eval"];_lumbda_wasm_free_result=Module["_lumbda_wasm_free_result"]=wasmExports["lumbda_wasm_free_result"];_ntohs=wasmExports["ntohs"];_setThrew=wasmExports["setThrew"];__emscripten_stack_restore=wasmExports["_emscripten_stack_restore"];__emscripten_stack_alloc=wasmExports["_emscripten_stack_alloc"];_emscripten_stack_get_current=wasmExports["emscripten_stack_get_current"];memory=wasmMemory=wasmExports["memory"];__indirect_function_table=wasmTable=wasmExports["__indirect_function_table"]}var wasmImports={__syscall_accept4:___syscall_accept4,__syscall_bind:___syscall_bind,__syscall_connect:___syscall_connect,__syscall_dup3:___syscall_dup3,__syscall_fcntl64:___syscall_fcntl64,__syscall_fstat64:___syscall_fstat64,__syscall_getcwd:___syscall_getcwd,__syscall_ioctl:___syscall_ioctl,__syscall_listen:___syscall_listen,__syscall_lstat64:___syscall_lstat64,__syscall_newfstatat:___syscall_newfstatat,__syscall_openat:___syscall_openat,__syscall_pipe2:___syscall_pipe2,__syscall_renameat:___syscall_renameat,__syscall_socket:___syscall_socket,__syscall_stat64:___syscall_stat64,__syscall_unlinkat:___syscall_unlinkat,_emscripten_lookup_name:__emscripten_lookup_name,_emscripten_throw_longjmp:__emscripten_throw_longjmp,clock_time_get:_clock_time_get,emscripten_get_now:_emscripten_get_now,emscripten_resize_heap:_emscripten_resize_heap,environ_get:_environ_get,environ_sizes_get:_environ_sizes_get,exit:_exit,fd_close:_fd_close,fd_fdstat_get:_fd_fdstat_get,fd_read:_fd_read,fd_seek:_fd_seek,fd_write:_fd_write,invoke_i,invoke_ii,invoke_iii,invoke_iiii,invoke_iiiii,invoke_iiiiiiiiii,invoke_iiiiijiiiii,invoke_iiiijii,invoke_iiij,invoke_iiijiii,invoke_iijj,invoke_ij,invoke_iji,invoke_ijj,invoke_ji,invoke_jii,invoke_jiii,invoke_jij,invoke_jj,invoke_jji,invoke_jjii,invoke_jjiii,invoke_jjj,invoke_jjjjjjj,invoke_v,invoke_vi,invoke_vii,invoke_viii,invoke_viiii,invoke_viiiii,invoke_viiji,invoke_vij,invoke_vijj,invoke_vjii,invoke_vjiii,proc_exit:_proc_exit};function invoke_jij(index,a1,a2){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0);return 0n}}function invoke_vii(index,a1,a2){var sp=stackSave();try{getWasmTableEntry(index)(a1,a2)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_jji(index,a1,a2){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0);return 0n}}function invoke_iiiijii(index,a1,a2,a3,a4,a5,a6){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3,a4,a5,a6)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_jjiii(index,a1,a2,a3,a4){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3,a4)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0);return 0n}}function invoke_ijj(index,a1,a2){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_iji(index,a1,a2){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_vij(index,a1,a2){var sp=stackSave();try{getWasmTableEntry(index)(a1,a2)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_ij(index,a1){var sp=stackSave();try{return getWasmTableEntry(index)(a1)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_iiijiii(index,a1,a2,a3,a4,a5,a6){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3,a4,a5,a6)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_ii(index,a1){var sp=stackSave();try{return getWasmTableEntry(index)(a1)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_vijj(index,a1,a2,a3){var sp=stackSave();try{getWasmTableEntry(index)(a1,a2,a3)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_iijj(index,a1,a2,a3){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_jjii(index,a1,a2,a3){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0);return 0n}}function invoke_jj(index,a1){var sp=stackSave();try{return getWasmTableEntry(index)(a1)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0);return 0n}}function invoke_viiii(index,a1,a2,a3,a4){var sp=stackSave();try{getWasmTableEntry(index)(a1,a2,a3,a4)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_jiii(index,a1,a2,a3){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0);return 0n}}function invoke_iiiii(index,a1,a2,a3,a4){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3,a4)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_viii(index,a1,a2,a3){var sp=stackSave();try{getWasmTableEntry(index)(a1,a2,a3)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_vjii(index,a1,a2,a3){var sp=stackSave();try{getWasmTableEntry(index)(a1,a2,a3)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_iii(index,a1,a2){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_ji(index,a1){var sp=stackSave();try{return getWasmTableEntry(index)(a1)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0);return 0n}}function invoke_jjj(index,a1,a2){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0);return 0n}}function invoke_jjjjjjj(index,a1,a2,a3,a4,a5,a6){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3,a4,a5,a6)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0);return 0n}}function invoke_jii(index,a1,a2){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0);return 0n}}function invoke_iiii(index,a1,a2,a3){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_iiij(index,a1,a2,a3){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_vjiii(index,a1,a2,a3,a4){var sp=stackSave();try{getWasmTableEntry(index)(a1,a2,a3,a4)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_iiiiijiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3,a4,a5,a6,a7,a8,a9,a10)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_viiiii(index,a1,a2,a3,a4,a5){var sp=stackSave();try{getWasmTableEntry(index)(a1,a2,a3,a4,a5)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_viiji(index,a1,a2,a3,a4){var sp=stackSave();try{getWasmTableEntry(index)(a1,a2,a3,a4)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_iiiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3,a4,a5,a6,a7,a8,a9)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_vi(index,a1){var sp=stackSave();try{getWasmTableEntry(index)(a1)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_v(index){var sp=stackSave();try{getWasmTableEntry(index)()}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_i(index){var sp=stackSave();try{return getWasmTableEntry(index)()}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function run(){if(runDependencies>0){dependenciesFulfilled=run;return}preRun();if(runDependencies>0){dependenciesFulfilled=run;return}function doRun(){Module["calledRun"]=true;if(ABORT)return;initRuntime();readyPromiseResolve?.(Module);Module["onRuntimeInitialized"]?.();postRun()}if(Module["setStatus"]){Module["setStatus"]("Running...");setTimeout(()=>{setTimeout(()=>Module["setStatus"](""),1);doRun()},1)}else{doRun()}}var wasmExports;wasmExports=await (createWasm());run();if(runtimeInitialized){moduleRtn=Module}else{moduleRtn=new Promise((resolve,reject)=>{readyPromiseResolve=resolve;readyPromiseReject=reject})}
-;return moduleRtn}})();if(typeof exports==="object"&&typeof module==="object"){module.exports=createLumbdaC;module.exports.default=createLumbdaC}else if(typeof define==="function"&&define["amd"])define([],()=>createLumbdaC);
+async function createLumbdaC(moduleArg={}){var moduleRtn;var Module=moduleArg;var ENVIRONMENT_IS_WEB=!!globalThis.window;var ENVIRONMENT_IS_WORKER=!!globalThis.WorkerGlobalScope;var ENVIRONMENT_IS_NODE=globalThis.process?.versions?.node&&globalThis.process?.type!="renderer";if(ENVIRONMENT_IS_NODE){const{createRequire}=await import("node:module");var require=createRequire(import.meta.url)}var programArgs=[];var thisProgram="./this.program";var quit_=(status,toThrow)=>{throw toThrow};var _scriptName=import.meta.url;var scriptDirectory="";function locateFile(path){if(Module["locateFile"]){return Module["locateFile"](path,scriptDirectory)}return scriptDirectory+path}var readAsync,readBinary;if(ENVIRONMENT_IS_NODE){var fs=require("node:fs");if(_scriptName.startsWith("file:")){scriptDirectory=require("node:path").dirname(require("node:url").fileURLToPath(_scriptName))+"/"}readBinary=filename=>{filename=isFileURI(filename)?new URL(filename):filename;var ret=fs.readFileSync(filename);return ret};readAsync=async(filename,binary=true)=>{filename=isFileURI(filename)?new URL(filename):filename;var ret=fs.readFileSync(filename,binary?undefined:"utf8");return ret};if(process.argv.length>1){thisProgram=process.argv[1].replace(/\\/g,"/")}programArgs=process.argv.slice(2);quit_=(status,toThrow)=>{process.exitCode=status;throw toThrow}}else if(ENVIRONMENT_IS_WEB||ENVIRONMENT_IS_WORKER){try{scriptDirectory=new URL(".",_scriptName).href}catch{}{if(ENVIRONMENT_IS_WORKER){readBinary=url=>{var xhr=new XMLHttpRequest;xhr.open("GET",url,false);xhr.responseType="arraybuffer";xhr.send(null);return new Uint8Array(xhr.response)}}readAsync=async url=>{var response=await fetch(url,{credentials:"same-origin"});if(response.ok){return response.arrayBuffer()}throw new Error(response.status+" : "+response.url)}}}else{}var out=console.log.bind(console);var err=console.error.bind(console);var wasmBinary;var ABORT=false;var EXITSTATUS;var isFileURI=filename=>filename.startsWith("file://");class EmscriptenEH{}class EmscriptenSjLj extends EmscriptenEH{}var readyPromiseResolve,readyPromiseReject;var runtimeInitialized=false;function updateMemoryViews(){var b=wasmMemory.buffer;HEAP8=new Int8Array(b);HEAP16=new Int16Array(b);HEAPU8=new Uint8Array(b);HEAPU16=new Uint16Array(b);HEAP32=new Int32Array(b);HEAPU32=new Uint32Array(b);HEAPF32=new Float32Array(b);HEAPF64=new Float64Array(b);HEAP64=new BigInt64Array(b);HEAPU64=new BigUint64Array(b)}function preRun(){if(Module["preRun"]){if(typeof Module["preRun"]=="function")Module["preRun"]=[Module["preRun"]];while(Module["preRun"].length){addOnPreRun(Module["preRun"].shift())}}callRuntimeCallbacks(onPreRuns)}function initRuntime(){runtimeInitialized=true;SOCKFS.root=FS.mount(SOCKFS,{},null);if(!Module["noFSInit"]&&!FS.initialized)FS.init();TTY.init();PIPEFS.root=FS.mount(PIPEFS,{},null);wasmExports["__wasm_call_ctors"]();FS.ignorePermissions=false}function postRun(){if(Module["postRun"]){if(typeof Module["postRun"]=="function")Module["postRun"]=[Module["postRun"]];while(Module["postRun"].length){addOnPostRun(Module["postRun"].shift())}}callRuntimeCallbacks(onPostRuns)}function abort(what){Module["onAbort"]?.(what);what=`Aborted(${what})`;err(what);ABORT=true;what+=". Build with -sASSERTIONS for more info.";var e=new WebAssembly.RuntimeError(what);readyPromiseReject?.(e);throw e}var wasmBinaryFile;function findWasmBinary(){if(Module["locateFile"]){return locateFile("lumbda-c.wasm")}return new URL("lumbda-c.wasm",import.meta.url).href}function getBinarySync(file){if(file==wasmBinaryFile&&wasmBinary){return new Uint8Array(wasmBinary)}if(readBinary){return readBinary(file)}throw"both async and sync fetching of the wasm failed"}async function getWasmBinary(binaryFile){if(!wasmBinary){try{var response=await readAsync(binaryFile);return new Uint8Array(response)}catch{}}return getBinarySync(binaryFile)}async function instantiateArrayBuffer(binaryFile,imports){try{var binary=await getWasmBinary(binaryFile);var instance=await WebAssembly.instantiate(binary,imports);return instance}catch(reason){err(`failed to asynchronously prepare wasm: ${reason}`);abort(reason)}}async function instantiateAsync(binary,binaryFile,imports){if(!binary&&!ENVIRONMENT_IS_NODE){try{var response=fetch(binaryFile,{credentials:"same-origin"});var instantiationResult=await WebAssembly.instantiateStreaming(response,imports);return instantiationResult}catch(reason){err(`wasm streaming compile failed: ${reason}`);err("falling back to ArrayBuffer instantiation")}}return instantiateArrayBuffer(binaryFile,imports)}function getWasmImports(){var imports={env:wasmImports,wasi_snapshot_preview1:wasmImports};return imports}async function createWasm(){function receiveInstance(instance,module){wasmExports=instance.exports;assignWasmExports(wasmExports);updateMemoryViews();return wasmExports}function receiveInstantiationResult(result){return receiveInstance(result["instance"])}var info=getWasmImports();if(Module["instantiateWasm"]){return new Promise((resolve,reject)=>{Module["instantiateWasm"](info,(inst,mod)=>{resolve(receiveInstance(inst,mod))})})}wasmBinaryFile??=findWasmBinary();var result=await instantiateAsync(wasmBinary,wasmBinaryFile,info);var exports=receiveInstantiationResult(result);return exports}class ExitStatus{name="ExitStatus";constructor(status){this.message=`Program terminated with exit(${status})`;this.status=status}}var HEAP16;var HEAP32;var HEAP64;var HEAP8;var HEAPF32;var HEAPF64;var HEAPU16;var HEAPU32;var HEAPU64;var HEAPU8;var callRuntimeCallbacks=callbacks=>{while(callbacks.length>0){callbacks.shift()(Module)}};var onPostRuns=[];var addOnPostRun=cb=>onPostRuns.push(cb);var onPreRuns=[];var addOnPreRun=cb=>onPreRuns.push(cb);var noExitRuntime=true;var stackRestore=val=>__emscripten_stack_restore(val);var stackSave=()=>_emscripten_stack_get_current();var initRandomFill=()=>{if(ENVIRONMENT_IS_NODE){var nodeCrypto=require("node:crypto");return view=>nodeCrypto.randomFillSync(view)}return view=>(crypto.getRandomValues(view),0)};var randomFill=view=>(randomFill=initRandomFill())(view);var PATH={isAbs:path=>path.charAt(0)==="/",splitPath:filename=>{var splitPathRe=/^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;return splitPathRe.exec(filename).slice(1)},normalizeArray:(parts,allowAboveRoot)=>{var up=0;for(var i=parts.length-1;i>=0;i--){var last=parts[i];if(last==="."){parts.splice(i,1)}else if(last===".."){parts.splice(i,1);up++}else if(up){parts.splice(i,1);up--}}if(allowAboveRoot){for(;up;up--){parts.unshift("..")}}return parts},normalize:path=>{var isAbsolute=PATH.isAbs(path),trailingSlash=path.slice(-1)==="/";path=PATH.normalizeArray(path.split("/").filter(p=>!!p),!isAbsolute).join("/");if(!path&&!isAbsolute){path="."}if(path&&trailingSlash){path+="/"}return(isAbsolute?"/":"")+path},dirname:path=>{var result=PATH.splitPath(path),root=result[0],dir=result[1];if(!root&&!dir){return"."}if(dir){dir=dir.slice(0,-1)}return root+dir},basename:path=>path&&path.match(/([^\/]+|\/)\/*$/)[1],join:(...paths)=>PATH.normalize(paths.join("/")),join2:(l,r)=>PATH.normalize(l+"/"+r)};var PATH_FS={resolve:(...args)=>{var resolvedPath="",resolvedAbsolute=false;for(var i=args.length-1;i>=-1&&!resolvedAbsolute;i--){var path=i>=0?args[i]:FS.cwd();if(typeof path!="string"){throw new TypeError("Arguments to path.resolve must be strings")}else if(!path){return""}resolvedPath=path+"/"+resolvedPath;resolvedAbsolute=PATH.isAbs(path)}resolvedPath=PATH.normalizeArray(resolvedPath.split("/").filter(p=>!!p),!resolvedAbsolute).join("/");return(resolvedAbsolute?"/":"")+resolvedPath||"."},relative:(from,to)=>{from=PATH_FS.resolve(from).slice(1);to=PATH_FS.resolve(to).slice(1);function trim(arr){var start=0;for(;start<arr.length;start++){if(arr[start]!=="")break}var end=arr.length-1;for(;end>=0;end--){if(arr[end]!=="")break}if(start>end)return[];return arr.slice(start,end-start+1)}var fromParts=trim(from.split("/"));var toParts=trim(to.split("/"));var length=Math.min(fromParts.length,toParts.length);var samePartsLength=length;for(var i=0;i<length;i++){if(fromParts[i]!==toParts[i]){samePartsLength=i;break}}var outputParts=[];for(var i=samePartsLength;i<fromParts.length;i++){outputParts.push("..")}outputParts=outputParts.concat(toParts.slice(samePartsLength));return outputParts.join("/")}};var UTF8Decoder=globalThis.TextDecoder&&new TextDecoder;var findStringEnd=(heapOrArray,idx,maxBytesToRead,ignoreNul)=>{var maxIdx=idx+maxBytesToRead;if(ignoreNul)return maxIdx;while(heapOrArray[idx]&&!(idx>=maxIdx))++idx;return idx};var UTF8ArrayToString=(heapOrArray,idx=0,maxBytesToRead,ignoreNul)=>{var endPtr=findStringEnd(heapOrArray,idx,maxBytesToRead,ignoreNul);if(endPtr-idx>16&&heapOrArray.buffer&&UTF8Decoder){return UTF8Decoder.decode(heapOrArray.subarray(idx,endPtr))}var str="";while(idx<endPtr){var u0=heapOrArray[idx++];if(!(u0&128)){str+=String.fromCharCode(u0);continue}var u1=heapOrArray[idx++]&63;if((u0&224)==192){str+=String.fromCharCode((u0&31)<<6|u1);continue}var u2=heapOrArray[idx++]&63;if((u0&240)==224){u0=(u0&15)<<12|u1<<6|u2}else{u0=(u0&7)<<18|u1<<12|u2<<6|heapOrArray[idx++]&63}if(u0<65536){str+=String.fromCharCode(u0)}else{var ch=u0-65536;str+=String.fromCharCode(55296|ch>>10,56320|ch&1023)}}return str};var FS_stdin_getChar_buffer=[];var lengthBytesUTF8=str=>{var len=0;for(var i=0;i<str.length;++i){var c=str.charCodeAt(i);if(c<=127){len++}else if(c<=2047){len+=2}else if(c>=55296&&c<=57343){len+=4;++i}else{len+=3}}return len};var stringToUTF8Array=(str,heap,outIdx,maxBytesToWrite)=>{if(!(maxBytesToWrite>0))return 0;var startIdx=outIdx;var endIdx=outIdx+maxBytesToWrite-1;for(var i=0;i<str.length;++i){var u=str.codePointAt(i);if(u<=127){if(outIdx>=endIdx)break;heap[outIdx++]=u}else if(u<=2047){if(outIdx+1>=endIdx)break;heap[outIdx++]=192|u>>6;heap[outIdx++]=128|u&63}else if(u<=65535){if(outIdx+2>=endIdx)break;heap[outIdx++]=224|u>>12;heap[outIdx++]=128|u>>6&63;heap[outIdx++]=128|u&63}else{if(outIdx+3>=endIdx)break;heap[outIdx++]=240|u>>18;heap[outIdx++]=128|u>>12&63;heap[outIdx++]=128|u>>6&63;heap[outIdx++]=128|u&63;i++}}heap[outIdx]=0;return outIdx-startIdx};var intArrayFromString=(stringy,dontAddNull,length)=>{var len=length>0?length:lengthBytesUTF8(stringy)+1;var u8array=new Array(len);var numBytesWritten=stringToUTF8Array(stringy,u8array,0,u8array.length);if(dontAddNull)u8array.length=numBytesWritten;return u8array};var FS_stdin_getChar=()=>{if(!FS_stdin_getChar_buffer.length){var result=null;if(ENVIRONMENT_IS_NODE){var BUFSIZE=256;var buf=Buffer.alloc(BUFSIZE);var bytesRead=0;var fd=process.stdin.fd;try{bytesRead=fs.readSync(fd,buf,0,BUFSIZE)}catch(e){if(e.toString().includes("EOF"))bytesRead=0;else throw e}if(bytesRead>0){result=buf.slice(0,bytesRead).toString("utf-8")}}else if(globalThis.window?.prompt){result=window.prompt("Input: ");if(result!==null){result+="\n"}}else{}if(!result){return null}FS_stdin_getChar_buffer=intArrayFromString(result,true)}return FS_stdin_getChar_buffer.shift()};var TTY={ttys:[],init(){},shutdown(){},register(dev,ops){TTY.ttys[dev]={input:[],output:[],ops};FS.registerDevice(dev,TTY.stream_ops)},stream_ops:{open(stream){var tty=TTY.ttys[stream.node.rdev];if(!tty){throw new FS.ErrnoError(43)}stream.tty=tty;stream.seekable=false},close(stream){stream.tty.ops.fsync(stream.tty)},fsync(stream){stream.tty.ops.fsync(stream.tty)},read(stream,buffer,offset,length,pos){if(!stream.tty||!stream.tty.ops.get_char){throw new FS.ErrnoError(60)}var bytesRead=0;for(var i=0;i<length;i++){var result;try{result=stream.tty.ops.get_char(stream.tty)}catch(e){throw new FS.ErrnoError(29)}if(result===undefined&&bytesRead===0){throw new FS.ErrnoError(6)}if(result===null||result===undefined)break;bytesRead++;buffer[offset+i]=result}if(bytesRead){stream.node.atime=Date.now()}return bytesRead},write(stream,buffer,offset,length,pos){if(!stream.tty||!stream.tty.ops.put_char){throw new FS.ErrnoError(60)}try{for(var i=0;i<length;i++){stream.tty.ops.put_char(stream.tty,buffer[offset+i])}}catch(e){throw new FS.ErrnoError(29)}if(length){stream.node.mtime=stream.node.ctime=Date.now()}return i}},default_tty_ops:{get_char(tty){return FS_stdin_getChar()},put_char(tty,val){if(val===null||val===10){out(UTF8ArrayToString(tty.output));tty.output=[]}else{if(val!=0)tty.output.push(val)}},fsync(tty){if(tty.output?.length>0){out(UTF8ArrayToString(tty.output));tty.output=[]}},ioctl_tcgets(tty){return{c_iflag:25856,c_oflag:5,c_cflag:191,c_lflag:35387,c_cc:[3,28,127,21,4,0,1,0,17,19,26,0,18,15,23,22,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]}},ioctl_tcsets(tty,optional_actions,data){return 0},ioctl_tiocgwinsz(tty){return[24,80]}},default_tty1_ops:{put_char(tty,val){if(val===null||val===10){err(UTF8ArrayToString(tty.output));tty.output=[]}else{if(val!=0)tty.output.push(val)}},fsync(tty){if(tty.output?.length>0){err(UTF8ArrayToString(tty.output));tty.output=[]}}}};var mmapAlloc=size=>{abort()};var MEMFS={ops_table:null,mount(mount){return MEMFS.createNode(null,"/",16895,0)},createNode(parent,name,mode,dev){if(FS.isBlkdev(mode)||FS.isFIFO(mode)){throw new FS.ErrnoError(63)}MEMFS.ops_table||={dir:{node:{getattr:MEMFS.node_ops.getattr,setattr:MEMFS.node_ops.setattr,lookup:MEMFS.node_ops.lookup,mknod:MEMFS.node_ops.mknod,rename:MEMFS.node_ops.rename,unlink:MEMFS.node_ops.unlink,rmdir:MEMFS.node_ops.rmdir,readdir:MEMFS.node_ops.readdir,symlink:MEMFS.node_ops.symlink},stream:{llseek:MEMFS.stream_ops.llseek}},file:{node:{getattr:MEMFS.node_ops.getattr,setattr:MEMFS.node_ops.setattr},stream:{llseek:MEMFS.stream_ops.llseek,read:MEMFS.stream_ops.read,write:MEMFS.stream_ops.write,mmap:MEMFS.stream_ops.mmap,msync:MEMFS.stream_ops.msync}},link:{node:{getattr:MEMFS.node_ops.getattr,setattr:MEMFS.node_ops.setattr,readlink:MEMFS.node_ops.readlink},stream:{}},chrdev:{node:{getattr:MEMFS.node_ops.getattr,setattr:MEMFS.node_ops.setattr},stream:FS.chrdev_stream_ops}};var node=FS.createNode(parent,name,mode,dev);if(FS.isDir(node.mode)){node.node_ops=MEMFS.ops_table.dir.node;node.stream_ops=MEMFS.ops_table.dir.stream;node.contents={}}else if(FS.isFile(node.mode)){node.node_ops=MEMFS.ops_table.file.node;node.stream_ops=MEMFS.ops_table.file.stream;node.usedBytes=0;node.contents=MEMFS.emptyFileContents??=new Uint8Array(0)}else if(FS.isLink(node.mode)){node.node_ops=MEMFS.ops_table.link.node;node.stream_ops=MEMFS.ops_table.link.stream}else if(FS.isChrdev(node.mode)){node.node_ops=MEMFS.ops_table.chrdev.node;node.stream_ops=MEMFS.ops_table.chrdev.stream}node.atime=node.mtime=node.ctime=Date.now();if(parent){parent.contents[name]=node;parent.atime=parent.mtime=parent.ctime=node.atime}return node},getFileDataAsTypedArray(node){return node.contents.subarray(0,node.usedBytes)},expandFileStorage(node,newCapacity){var prevCapacity=node.contents.length;if(prevCapacity>=newCapacity)return;var CAPACITY_DOUBLING_MAX=1024*1024;newCapacity=Math.max(newCapacity,prevCapacity*(prevCapacity<CAPACITY_DOUBLING_MAX?2:1.125)>>>0);if(prevCapacity)newCapacity=Math.max(newCapacity,256);var oldContents=MEMFS.getFileDataAsTypedArray(node);node.contents=new Uint8Array(newCapacity);node.contents.set(oldContents)},resizeFileStorage(node,newSize){if(node.usedBytes==newSize)return;var oldContents=node.contents;node.contents=new Uint8Array(newSize);node.contents.set(oldContents.subarray(0,Math.min(newSize,node.usedBytes)));node.usedBytes=newSize},node_ops:{getattr(node){var attr={};attr.dev=FS.isChrdev(node.mode)?node.id:1;attr.ino=node.id;attr.mode=node.mode;attr.nlink=1;attr.uid=0;attr.gid=0;attr.rdev=node.rdev;if(FS.isDir(node.mode)){attr.size=4096}else if(FS.isFile(node.mode)){attr.size=node.usedBytes}else if(FS.isLink(node.mode)){attr.size=node.link.length}else{attr.size=0}attr.atime=new Date(node.atime);attr.mtime=new Date(node.mtime);attr.ctime=new Date(node.ctime);attr.blksize=4096;attr.blocks=Math.ceil(attr.size/attr.blksize);return attr},setattr(node,attr){for(const key of["mode","atime","mtime","ctime"]){if(attr[key]!=null){node[key]=attr[key]}}if(attr.size!==undefined){MEMFS.resizeFileStorage(node,attr.size)}},lookup(parent,name){if(!MEMFS.doesNotExistError){MEMFS.doesNotExistError=new FS.ErrnoError(44);MEMFS.doesNotExistError.stack="<generic error, no stack>"}throw MEMFS.doesNotExistError},mknod(parent,name,mode,dev){return MEMFS.createNode(parent,name,mode,dev)},rename(old_node,new_dir,new_name){var new_node;try{new_node=FS.lookupNode(new_dir,new_name)}catch(e){}if(new_node){if(FS.isDir(old_node.mode)){for(var i in new_node.contents){throw new FS.ErrnoError(55)}}FS.hashRemoveNode(new_node)}delete old_node.parent.contents[old_node.name];new_dir.contents[new_name]=old_node;old_node.name=new_name;new_dir.ctime=new_dir.mtime=old_node.parent.ctime=old_node.parent.mtime=Date.now()},unlink(parent,name){delete parent.contents[name];parent.ctime=parent.mtime=Date.now()},rmdir(parent,name){var node=FS.lookupNode(parent,name);for(var i in node.contents){throw new FS.ErrnoError(55)}delete parent.contents[name];parent.ctime=parent.mtime=Date.now()},readdir(node){return[".","..",...Object.keys(node.contents)]},symlink(parent,newname,oldpath){var node=MEMFS.createNode(parent,newname,511|40960,0);node.link=oldpath;return node},readlink(node){if(!FS.isLink(node.mode)){throw new FS.ErrnoError(28)}return node.link}},stream_ops:{read(stream,buffer,offset,length,position){var contents=stream.node.contents;if(position>=stream.node.usedBytes)return 0;var size=Math.min(stream.node.usedBytes-position,length);buffer.set(contents.subarray(position,position+size),offset);return size},write(stream,buffer,offset,length,position,canOwn){if(buffer.buffer===HEAP8.buffer){canOwn=false}if(!length)return 0;var node=stream.node;node.mtime=node.ctime=Date.now();if(canOwn){node.contents=buffer.subarray(offset,offset+length);node.usedBytes=length}else if(node.usedBytes===0&&position===0){node.contents=buffer.slice(offset,offset+length);node.usedBytes=length}else{MEMFS.expandFileStorage(node,position+length);node.contents.set(buffer.subarray(offset,offset+length),position);node.usedBytes=Math.max(node.usedBytes,position+length)}return length},llseek(stream,offset,whence){var position=offset;if(whence===1){position+=stream.position}else if(whence===2){if(FS.isFile(stream.node.mode)){position+=stream.node.usedBytes}}if(position<0){throw new FS.ErrnoError(28)}return position},mmap(stream,length,position,prot,flags){if(!FS.isFile(stream.node.mode)){throw new FS.ErrnoError(43)}var ptr;var allocated;var contents=stream.node.contents;if(!(flags&2)&&contents.buffer===HEAP8.buffer){allocated=false;ptr=contents.byteOffset}else{allocated=true;ptr=mmapAlloc(length);if(!ptr){throw new FS.ErrnoError(48)}if(contents){if(position>0||position+length<contents.length){if(contents.subarray){contents=contents.subarray(position,position+length)}else{contents=Array.prototype.slice.call(contents,position,position+length)}}HEAP8.set(contents,ptr)}}return{ptr,allocated}},msync(stream,buffer,offset,length,mmapFlags){MEMFS.stream_ops.write(stream,buffer,0,length,offset,false);return 0}}};var FS_modeStringToFlags=str=>{if(typeof str!="string")return str;var flagModes={r:0,"r+":2,w:512|64|1,"w+":512|64|2,a:1024|64|1,"a+":1024|64|2};var flags=flagModes[str];if(typeof flags=="undefined"){throw new Error(`Unknown file open mode: ${str}`)}return flags};var FS_fileDataToTypedArray=data=>{if(typeof data=="string"){data=intArrayFromString(data,true)}if(!data.subarray){data=new Uint8Array(data)}return data};var FS_getMode=(canRead,canWrite)=>{var mode=0;if(canRead)mode|=292|73;if(canWrite)mode|=146;return mode};var asyncLoad=async url=>{var arrayBuffer=await readAsync(url);return new Uint8Array(arrayBuffer)};var FS_createDataFile=(...args)=>FS.createDataFile(...args);var getUniqueRunDependency=id=>id;var runDependencies=0;var dependenciesFulfilled=null;var removeRunDependency=id=>{runDependencies--;Module["monitorRunDependencies"]?.(runDependencies);if(runDependencies==0){if(dependenciesFulfilled){var callback=dependenciesFulfilled;dependenciesFulfilled=null;callback()}}};var addRunDependency=id=>{runDependencies++;Module["monitorRunDependencies"]?.(runDependencies)};var preloadPlugins=[];var FS_handledByPreloadPlugin=async(byteArray,fullname)=>{if(typeof Browser!="undefined")Browser.init();for(var plugin of preloadPlugins){if(plugin["canHandle"](fullname)){return plugin["handle"](byteArray,fullname)}}return byteArray};var FS_preloadFile=async(parent,name,url,canRead,canWrite,dontCreateFile,canOwn,preFinish)=>{var fullname=name?PATH_FS.resolve(PATH.join2(parent,name)):parent;var dep=getUniqueRunDependency(`cp ${fullname}`);addRunDependency(dep);try{var byteArray=url;if(typeof url=="string"){byteArray=await asyncLoad(url)}byteArray=await FS_handledByPreloadPlugin(byteArray,fullname);preFinish?.();if(!dontCreateFile){FS_createDataFile(parent,name,byteArray,canRead,canWrite,canOwn)}}finally{removeRunDependency(dep)}};var FS_createPreloadedFile=(parent,name,url,canRead,canWrite,onload,onerror,dontCreateFile,canOwn,preFinish)=>{FS_preloadFile(parent,name,url,canRead,canWrite,dontCreateFile,canOwn,preFinish).then(onload).catch(onerror)};var FS={root:null,mounts:[],devices:{},streams:[],nextInode:1,nameTable:null,currentPath:"/",initialized:false,ignorePermissions:true,filesystems:null,syncFSRequests:0,ErrnoError:class{name="ErrnoError";constructor(errno){this.errno=errno}},FSStream:class{shared={};get object(){return this.node}set object(val){this.node=val}get isRead(){return(this.flags&2097155)!==1}get isWrite(){return(this.flags&2097155)!==0}get isAppend(){return this.flags&1024}get flags(){return this.shared.flags}set flags(val){this.shared.flags=val}get position(){return this.shared.position}set position(val){this.shared.position=val}},FSNode:class{node_ops={};stream_ops={};readMode=292|73;writeMode=146;mounted=null;constructor(parent,name,mode,rdev){if(!parent){parent=this}this.parent=parent;this.mount=parent.mount;this.id=FS.nextInode++;this.name=name;this.mode=mode;this.rdev=rdev;this.atime=this.mtime=this.ctime=Date.now()}get read(){return(this.mode&this.readMode)===this.readMode}set read(val){val?this.mode|=this.readMode:this.mode&=~this.readMode}get write(){return(this.mode&this.writeMode)===this.writeMode}set write(val){val?this.mode|=this.writeMode:this.mode&=~this.writeMode}get isFolder(){return FS.isDir(this.mode)}get isDevice(){return FS.isChrdev(this.mode)}},lookupPath(path,opts={}){if(!path){throw new FS.ErrnoError(44)}opts.follow_mount??=true;if(!PATH.isAbs(path)){path=FS.cwd()+"/"+path}linkloop:for(var nlinks=0;nlinks<40;nlinks++){var parts=path.split("/").filter(p=>!!p);var current=FS.root;var current_path="/";for(var i=0;i<parts.length;i++){var islast=i===parts.length-1;if(islast&&opts.parent){break}if(parts[i]==="."){continue}if(parts[i]===".."){current_path=PATH.dirname(current_path);if(FS.isRoot(current)){path=current_path+"/"+parts.slice(i+1).join("/");nlinks--;continue linkloop}else{current=current.parent}continue}current_path=PATH.join2(current_path,parts[i]);try{current=FS.lookupNode(current,parts[i])}catch(e){if(e?.errno===44&&islast&&opts.noent_okay){return{path:current_path}}throw e}if(FS.isMountpoint(current)&&(!islast||opts.follow_mount)){current=current.mounted.root}if(FS.isLink(current.mode)&&(!islast||opts.follow)){if(!current.node_ops.readlink){throw new FS.ErrnoError(52)}var link=current.node_ops.readlink(current);if(!PATH.isAbs(link)){link=PATH.dirname(current_path)+"/"+link}path=link+"/"+parts.slice(i+1).join("/");continue linkloop}}return{path:current_path,node:current}}throw new FS.ErrnoError(32)},getPath(node){var path;while(true){if(FS.isRoot(node)){var mount=node.mount.mountpoint;if(!path)return mount;return mount[mount.length-1]!=="/"?`${mount}/${path}`:mount+path}path=path?`${node.name}/${path}`:node.name;node=node.parent}},hashName(parentid,name){var hash=0;for(var i=0;i<name.length;i++){hash=(hash<<5)-hash+name.charCodeAt(i)|0}return(parentid+hash>>>0)%FS.nameTable.length},hashAddNode(node){var hash=FS.hashName(node.parent.id,node.name);node.name_next=FS.nameTable[hash];FS.nameTable[hash]=node},hashRemoveNode(node){var hash=FS.hashName(node.parent.id,node.name);if(FS.nameTable[hash]===node){FS.nameTable[hash]=node.name_next}else{var current=FS.nameTable[hash];while(current){if(current.name_next===node){current.name_next=node.name_next;break}current=current.name_next}}},lookupNode(parent,name){var errCode=FS.mayLookup(parent);if(errCode){throw new FS.ErrnoError(errCode)}var hash=FS.hashName(parent.id,name);for(var node=FS.nameTable[hash];node;node=node.name_next){var nodeName=node.name;if(node.parent.id===parent.id&&nodeName===name){return node}}return FS.lookup(parent,name)},createNode(parent,name,mode,rdev){var node=new FS.FSNode(parent,name,mode,rdev);FS.hashAddNode(node);return node},destroyNode(node){FS.hashRemoveNode(node)},isRoot(node){return node===node.parent},isMountpoint(node){return!!node.mounted},isFile(mode){return(mode&61440)===32768},isDir(mode){return(mode&61440)===16384},isLink(mode){return(mode&61440)===40960},isChrdev(mode){return(mode&61440)===8192},isBlkdev(mode){return(mode&61440)===24576},isFIFO(mode){return(mode&61440)===4096},isSocket(mode){return(mode&49152)===49152},flagsToPermissionString(flag){var perms=["r","w","rw"][flag&3];if(flag&512){perms+="w"}return perms},nodePermissions(node,perms){if(FS.ignorePermissions){return 0}if(perms.includes("r")&&!(node.mode&292)){return 2}if(perms.includes("w")&&!(node.mode&146)){return 2}if(perms.includes("x")&&!(node.mode&73)){return 2}return 0},mayLookup(dir){if(!FS.isDir(dir.mode))return 54;var errCode=FS.nodePermissions(dir,"x");if(errCode)return errCode;if(!dir.node_ops.lookup)return 2;return 0},mayCreate(dir,name){if(!FS.isDir(dir.mode)){return 54}try{var node=FS.lookupNode(dir,name);return 20}catch(e){}return FS.nodePermissions(dir,"wx")},mayDelete(dir,name,isdir){var node;try{node=FS.lookupNode(dir,name)}catch(e){return e.errno}var errCode=FS.nodePermissions(dir,"wx");if(errCode){return errCode}if(isdir){if(!FS.isDir(node.mode)){return 54}if(FS.isRoot(node)||FS.getPath(node)===FS.cwd()){return 10}}else if(FS.isDir(node.mode)){return 31}return 0},mayOpen(node,flags){if(!node){return 44}if(FS.isLink(node.mode)){return 32}var mode=FS.flagsToPermissionString(flags);if(FS.isDir(node.mode)){if(mode!=="r"||flags&(512|64)){return 31}}return FS.nodePermissions(node,mode)},checkOpExists(op,err){if(!op){throw new FS.ErrnoError(err)}return op},MAX_OPEN_FDS:4096,nextfd(){for(var fd=0;fd<=FS.MAX_OPEN_FDS;fd++){if(!FS.streams[fd]){return fd}}throw new FS.ErrnoError(33)},getStreamChecked(fd){var stream=FS.getStream(fd);if(!stream){throw new FS.ErrnoError(8)}return stream},getStream:fd=>FS.streams[fd],createStream(stream,fd=-1){stream=Object.assign(new FS.FSStream,stream);if(fd==-1){fd=FS.nextfd()}stream.fd=fd;FS.streams[fd]=stream;return stream},closeStream(fd){FS.streams[fd]=null},dupStream(origStream,fd=-1){var stream=FS.createStream(origStream,fd);stream.stream_ops?.dup?.(stream);return stream},doSetAttr(stream,node,attr){var setattr=stream?.stream_ops.setattr;var arg=setattr?stream:node;setattr??=node.node_ops.setattr;FS.checkOpExists(setattr,63);try{setattr(arg,attr)}catch(e){if(e instanceof RangeError){throw new FS.ErrnoError(22)}throw e}},chrdev_stream_ops:{open(stream){var device=FS.getDevice(stream.node.rdev);stream.stream_ops=device.stream_ops;stream.stream_ops.open?.(stream)},llseek(){throw new FS.ErrnoError(70)}},major:dev=>dev>>8,minor:dev=>dev&255,makedev:(ma,mi)=>ma<<8|mi,registerDevice(dev,ops){FS.devices[dev]={stream_ops:ops}},getDevice:dev=>FS.devices[dev],getMounts(mount){var mounts=[];var check=[mount];while(check.length){var m=check.pop();mounts.push(m);check.push(...m.mounts)}return mounts},syncfs(populate,callback){if(typeof populate=="function"){callback=populate;populate=false}FS.syncFSRequests++;if(FS.syncFSRequests>1){err(`warning: ${FS.syncFSRequests} FS.syncfs operations in flight at once, probably just doing extra work`)}var mounts=FS.getMounts(FS.root.mount);var completed=0;function doCallback(errCode){FS.syncFSRequests--;return callback(errCode)}function done(errCode){if(errCode){if(!done.errored){done.errored=true;return doCallback(errCode)}return}if(++completed>=mounts.length){doCallback(null)}}for(var mount of mounts){if(mount.type.syncfs){mount.type.syncfs(mount,populate,done)}else{done(null)}}},mount(type,opts,mountpoint){var root=mountpoint==="/";var pseudo=!mountpoint;var node;if(root&&FS.root){throw new FS.ErrnoError(10)}else if(!root&&!pseudo){var lookup=FS.lookupPath(mountpoint,{follow_mount:false});mountpoint=lookup.path;node=lookup.node;if(FS.isMountpoint(node)){throw new FS.ErrnoError(10)}if(!FS.isDir(node.mode)){throw new FS.ErrnoError(54)}}var mount={type,opts,mountpoint,mounts:[]};var mountRoot=type.mount(mount);mountRoot.mount=mount;mount.root=mountRoot;if(root){FS.root=mountRoot}else if(node){node.mounted=mount;if(node.mount){node.mount.mounts.push(mount)}}return mountRoot},unmount(mountpoint){var lookup=FS.lookupPath(mountpoint,{follow_mount:false});if(!FS.isMountpoint(lookup.node)){throw new FS.ErrnoError(28)}var node=lookup.node;var mount=node.mounted;var mounts=FS.getMounts(mount);for(var[hash,current]of Object.entries(FS.nameTable)){while(current){var next=current.name_next;if(mounts.includes(current.mount)){FS.destroyNode(current)}current=next}}node.mounted=null;var idx=node.mount.mounts.indexOf(mount);node.mount.mounts.splice(idx,1)},lookup(parent,name){return parent.node_ops.lookup(parent,name)},mknod(path,mode,dev){var lookup=FS.lookupPath(path,{parent:true});var parent=lookup.node;var name=PATH.basename(path);if(!name){throw new FS.ErrnoError(28)}if(name==="."||name===".."){throw new FS.ErrnoError(20)}var errCode=FS.mayCreate(parent,name);if(errCode){throw new FS.ErrnoError(errCode)}if(!parent.node_ops.mknod){throw new FS.ErrnoError(63)}return parent.node_ops.mknod(parent,name,mode,dev)},statfs(path){return FS.statfsNode(FS.lookupPath(path,{follow:true}).node)},statfsStream(stream){return FS.statfsNode(stream.node)},statfsNode(node){var rtn={bsize:4096,frsize:4096,blocks:1e6,bfree:5e5,bavail:5e5,files:FS.nextInode,ffree:FS.nextInode-1,fsid:42,flags:2,namelen:255};if(node.node_ops.statfs){Object.assign(rtn,node.node_ops.statfs(node.mount.opts.root))}return rtn},create(path,mode=438){mode&=4095;mode|=32768;return FS.mknod(path,mode,0)},mkdir(path,mode=511){mode&=511|512;mode|=16384;return FS.mknod(path,mode,0)},mkdirTree(path,mode){var dirs=path.split("/");var d="";for(var dir of dirs){if(!dir)continue;if(d||PATH.isAbs(path))d+="/";d+=dir;try{FS.mkdir(d,mode)}catch(e){if(e.errno!=20)throw e}}},mkdev(path,mode,dev){if(typeof dev=="undefined"){dev=mode;mode=438}mode|=8192;return FS.mknod(path,mode,dev)},symlink(oldpath,newpath){if(!PATH_FS.resolve(oldpath)){throw new FS.ErrnoError(44)}var lookup=FS.lookupPath(newpath,{parent:true});var parent=lookup.node;if(!parent){throw new FS.ErrnoError(44)}var newname=PATH.basename(newpath);var errCode=FS.mayCreate(parent,newname);if(errCode){throw new FS.ErrnoError(errCode)}if(!parent.node_ops.symlink){throw new FS.ErrnoError(63)}return parent.node_ops.symlink(parent,newname,oldpath)},rename(old_path,new_path){var old_dirname=PATH.dirname(old_path);var new_dirname=PATH.dirname(new_path);var old_name=PATH.basename(old_path);var new_name=PATH.basename(new_path);var lookup,old_dir,new_dir;lookup=FS.lookupPath(old_path,{parent:true});old_dir=lookup.node;lookup=FS.lookupPath(new_path,{parent:true});new_dir=lookup.node;if(!old_dir||!new_dir)throw new FS.ErrnoError(44);if(old_dir.mount!==new_dir.mount){throw new FS.ErrnoError(75)}var old_node=FS.lookupNode(old_dir,old_name);var relative=PATH_FS.relative(old_path,new_dirname);if(relative.charAt(0)!=="."){throw new FS.ErrnoError(28)}relative=PATH_FS.relative(new_path,old_dirname);if(relative.charAt(0)!=="."){throw new FS.ErrnoError(55)}var new_node;try{new_node=FS.lookupNode(new_dir,new_name)}catch(e){}if(old_node===new_node){return}var isdir=FS.isDir(old_node.mode);var errCode=FS.mayDelete(old_dir,old_name,isdir);if(errCode){throw new FS.ErrnoError(errCode)}errCode=new_node?FS.mayDelete(new_dir,new_name,isdir):FS.mayCreate(new_dir,new_name);if(errCode){throw new FS.ErrnoError(errCode)}if(!old_dir.node_ops.rename){throw new FS.ErrnoError(63)}if(FS.isMountpoint(old_node)||new_node&&FS.isMountpoint(new_node)){throw new FS.ErrnoError(10)}if(new_dir!==old_dir){errCode=FS.nodePermissions(old_dir,"w");if(errCode){throw new FS.ErrnoError(errCode)}}FS.hashRemoveNode(old_node);try{old_dir.node_ops.rename(old_node,new_dir,new_name);old_node.parent=new_dir}catch(e){throw e}finally{FS.hashAddNode(old_node)}},rmdir(path){var lookup=FS.lookupPath(path,{parent:true});var parent=lookup.node;var name=PATH.basename(path);var node=FS.lookupNode(parent,name);var errCode=FS.mayDelete(parent,name,true);if(errCode){throw new FS.ErrnoError(errCode)}if(!parent.node_ops.rmdir){throw new FS.ErrnoError(63)}if(FS.isMountpoint(node)){throw new FS.ErrnoError(10)}parent.node_ops.rmdir(parent,name);FS.destroyNode(node)},readdir(path){var lookup=FS.lookupPath(path,{follow:true});var node=lookup.node;var readdir=FS.checkOpExists(node.node_ops.readdir,54);return readdir(node)},unlink(path){var lookup=FS.lookupPath(path,{parent:true});var parent=lookup.node;if(!parent){throw new FS.ErrnoError(44)}var name=PATH.basename(path);var node=FS.lookupNode(parent,name);var errCode=FS.mayDelete(parent,name,false);if(errCode){throw new FS.ErrnoError(errCode)}if(!parent.node_ops.unlink){throw new FS.ErrnoError(63)}if(FS.isMountpoint(node)){throw new FS.ErrnoError(10)}parent.node_ops.unlink(parent,name);FS.destroyNode(node)},readlink(path){var lookup=FS.lookupPath(path);var link=lookup.node;if(!link){throw new FS.ErrnoError(44)}if(!link.node_ops.readlink){throw new FS.ErrnoError(28)}return link.node_ops.readlink(link)},stat(path,dontFollow){var lookup=FS.lookupPath(path,{follow:!dontFollow});var node=lookup.node;var getattr=FS.checkOpExists(node.node_ops.getattr,63);return getattr(node)},fstat(fd){var stream=FS.getStreamChecked(fd);var node=stream.node;var getattr=stream.stream_ops.getattr;var arg=getattr?stream:node;getattr??=node.node_ops.getattr;FS.checkOpExists(getattr,63);return getattr(arg)},lstat(path){return FS.stat(path,true)},doChmod(stream,node,mode,dontFollow){FS.doSetAttr(stream,node,{mode:mode&4095|node.mode&~4095,ctime:Date.now(),dontFollow})},chmod(path,mode,dontFollow){var node;if(typeof path=="string"){var lookup=FS.lookupPath(path,{follow:!dontFollow});node=lookup.node}else{node=path}FS.doChmod(null,node,mode,dontFollow)},lchmod(path,mode){FS.chmod(path,mode,true)},fchmod(fd,mode){var stream=FS.getStreamChecked(fd);FS.doChmod(stream,stream.node,mode,false)},doChown(stream,node,dontFollow){FS.doSetAttr(stream,node,{timestamp:Date.now(),dontFollow})},chown(path,uid,gid,dontFollow){var node;if(typeof path=="string"){var lookup=FS.lookupPath(path,{follow:!dontFollow});node=lookup.node}else{node=path}FS.doChown(null,node,dontFollow)},lchown(path,uid,gid){FS.chown(path,uid,gid,true)},fchown(fd,uid,gid){var stream=FS.getStreamChecked(fd);FS.doChown(stream,stream.node,false)},doTruncate(stream,node,len){if(FS.isDir(node.mode)){throw new FS.ErrnoError(31)}if(!FS.isFile(node.mode)){throw new FS.ErrnoError(28)}var errCode=FS.nodePermissions(node,"w");if(errCode){throw new FS.ErrnoError(errCode)}FS.doSetAttr(stream,node,{size:len,timestamp:Date.now()})},truncate(path,len){if(len<0){throw new FS.ErrnoError(28)}var node;if(typeof path=="string"){var lookup=FS.lookupPath(path,{follow:true});node=lookup.node}else{node=path}FS.doTruncate(null,node,len)},ftruncate(fd,len){var stream=FS.getStreamChecked(fd);if(len<0||(stream.flags&2097155)===0){throw new FS.ErrnoError(28)}FS.doTruncate(stream,stream.node,len)},utime(path,atime,mtime){var lookup=FS.lookupPath(path,{follow:true});var node=lookup.node;var setattr=FS.checkOpExists(node.node_ops.setattr,63);setattr(node,{atime,mtime})},open(path,flags,mode=438){if(path===""){throw new FS.ErrnoError(44)}flags=FS_modeStringToFlags(flags);if(flags&64){mode=mode&4095|32768}else{mode=0}var node;var isDirPath;if(typeof path=="object"){node=path}else{isDirPath=path.endsWith("/");var lookup=FS.lookupPath(path,{follow:!(flags&131072),noent_okay:true});node=lookup.node;path=lookup.path}var created=false;if(flags&64){if(node){if(flags&128){throw new FS.ErrnoError(20)}}else if(isDirPath){throw new FS.ErrnoError(31)}else{node=FS.mknod(path,mode|511,0);created=true}}if(!node){throw new FS.ErrnoError(44)}if(FS.isChrdev(node.mode)){flags&=~512}if(flags&65536&&!FS.isDir(node.mode)){throw new FS.ErrnoError(54)}if(!created){var errCode=FS.mayOpen(node,flags);if(errCode){throw new FS.ErrnoError(errCode)}}if(flags&512&&!created){FS.truncate(node,0)}flags&=~(128|512|131072);var stream=FS.createStream({node,path:FS.getPath(node),flags,seekable:true,position:0,stream_ops:node.stream_ops,ungotten:[],error:false});if(stream.stream_ops.open){stream.stream_ops.open(stream)}if(created){FS.chmod(node,mode&511)}return stream},close(stream){if(FS.isClosed(stream)){throw new FS.ErrnoError(8)}if(stream.getdents)stream.getdents=null;try{if(stream.stream_ops.close){stream.stream_ops.close(stream)}}catch(e){throw e}finally{FS.closeStream(stream.fd)}stream.fd=null},isClosed(stream){return stream.fd===null},llseek(stream,offset,whence){if(FS.isClosed(stream)){throw new FS.ErrnoError(8)}if(!stream.seekable||!stream.stream_ops.llseek){throw new FS.ErrnoError(70)}if(whence!=0&&whence!=1&&whence!=2){throw new FS.ErrnoError(28)}stream.position=stream.stream_ops.llseek(stream,offset,whence);stream.ungotten=[];return stream.position},read(stream,buffer,offset,length,position){if(length<0||position<0){throw new FS.ErrnoError(28)}if(FS.isClosed(stream)){throw new FS.ErrnoError(8)}if((stream.flags&2097155)===1){throw new FS.ErrnoError(8)}if(FS.isDir(stream.node.mode)){throw new FS.ErrnoError(31)}if(!stream.stream_ops.read){throw new FS.ErrnoError(28)}var seeking=typeof position!="undefined";if(!seeking){position=stream.position}else if(!stream.seekable){throw new FS.ErrnoError(70)}var bytesRead=stream.stream_ops.read(stream,buffer,offset,length,position);if(!seeking)stream.position+=bytesRead;return bytesRead},write(stream,buffer,offset,length,position,canOwn){if(length<0||position<0){throw new FS.ErrnoError(28)}if(FS.isClosed(stream)){throw new FS.ErrnoError(8)}if((stream.flags&2097155)===0){throw new FS.ErrnoError(8)}if(FS.isDir(stream.node.mode)){throw new FS.ErrnoError(31)}if(!stream.stream_ops.write){throw new FS.ErrnoError(28)}if(stream.seekable&&stream.flags&1024){FS.llseek(stream,0,2)}var seeking=typeof position!="undefined";if(!seeking){position=stream.position}else if(!stream.seekable){throw new FS.ErrnoError(70)}var bytesWritten=stream.stream_ops.write(stream,buffer,offset,length,position,canOwn);if(!seeking)stream.position+=bytesWritten;return bytesWritten},mmap(stream,length,position,prot,flags){if((prot&2)!==0&&(flags&2)===0&&(stream.flags&2097155)!==2){throw new FS.ErrnoError(2)}if((stream.flags&2097155)===1){throw new FS.ErrnoError(2)}if(!stream.stream_ops.mmap){throw new FS.ErrnoError(43)}if(!length){throw new FS.ErrnoError(28)}return stream.stream_ops.mmap(stream,length,position,prot,flags)},msync(stream,buffer,offset,length,mmapFlags){if(!stream.stream_ops.msync){return 0}return stream.stream_ops.msync(stream,buffer,offset,length,mmapFlags)},ioctl(stream,cmd,arg){if(!stream.stream_ops.ioctl){throw new FS.ErrnoError(59)}return stream.stream_ops.ioctl(stream,cmd,arg)},readFile(path,opts={}){opts.flags=opts.flags??0;opts.encoding=opts.encoding??"binary";if(opts.encoding!=="utf8"&&opts.encoding!=="binary"){abort(`Invalid encoding type "${opts.encoding}"`)}var stream=FS.open(path,opts.flags);var stat=FS.stat(path);var length=stat.size;var buf=new Uint8Array(length);FS.read(stream,buf,0,length,0);if(opts.encoding==="utf8"){buf=UTF8ArrayToString(buf)}FS.close(stream);return buf},writeFile(path,data,opts={}){opts.flags=opts.flags??577;var stream=FS.open(path,opts.flags,opts.mode);data=FS_fileDataToTypedArray(data);FS.write(stream,data,0,data.byteLength,undefined,opts.canOwn);FS.close(stream)},cwd:()=>FS.currentPath,chdir(path){var lookup=FS.lookupPath(path,{follow:true});if(lookup.node===null){throw new FS.ErrnoError(44)}if(!FS.isDir(lookup.node.mode)){throw new FS.ErrnoError(54)}var errCode=FS.nodePermissions(lookup.node,"x");if(errCode){throw new FS.ErrnoError(errCode)}FS.currentPath=lookup.path},createDefaultDirectories(){FS.mkdir("/tmp");FS.mkdir("/home");FS.mkdir("/home/web_user")},createDefaultDevices(){FS.mkdir("/dev");FS.registerDevice(FS.makedev(1,3),{read:()=>0,write:(stream,buffer,offset,length,pos)=>length,llseek:()=>0});FS.mkdev("/dev/null",FS.makedev(1,3));TTY.register(FS.makedev(5,0),TTY.default_tty_ops);TTY.register(FS.makedev(6,0),TTY.default_tty1_ops);FS.mkdev("/dev/tty",FS.makedev(5,0));FS.mkdev("/dev/tty1",FS.makedev(6,0));var randomBuffer=new Uint8Array(1024),randomLeft=0;var randomByte=()=>{if(randomLeft===0){randomFill(randomBuffer);randomLeft=randomBuffer.byteLength}return randomBuffer[--randomLeft]};FS.createDevice("/dev","random",randomByte);FS.createDevice("/dev","urandom",randomByte);FS.mkdir("/dev/shm");FS.mkdir("/dev/shm/tmp")},createSpecialDirectories(){FS.mkdir("/proc");var proc_self=FS.mkdir("/proc/self");FS.mkdir("/proc/self/fd");FS.mount({mount(){var node=FS.createNode(proc_self,"fd",16895,73);node.stream_ops={llseek:MEMFS.stream_ops.llseek};node.node_ops={lookup(parent,name){var fd=+name;var stream=FS.getStreamChecked(fd);var ret={parent:null,mount:{mountpoint:"fake"},node_ops:{readlink:()=>stream.path},id:fd+1};ret.parent=ret;return ret},readdir(){return Array.from(FS.streams.entries()).filter(([k,v])=>v).map(([k,v])=>k.toString())}};return node}},{},"/proc/self/fd")},createStandardStreams(input,output,error){if(input){FS.createDevice("/dev","stdin",input)}else{FS.symlink("/dev/tty","/dev/stdin")}if(output){FS.createDevice("/dev","stdout",null,output)}else{FS.symlink("/dev/tty","/dev/stdout")}if(error){FS.createDevice("/dev","stderr",null,error)}else{FS.symlink("/dev/tty1","/dev/stderr")}var stdin=FS.open("/dev/stdin",0);var stdout=FS.open("/dev/stdout",1);var stderr=FS.open("/dev/stderr",1)},staticInit(){FS.nameTable=new Array(4096);FS.mount(MEMFS,{},"/");FS.createDefaultDirectories();FS.createDefaultDevices();FS.createSpecialDirectories();FS.filesystems={MEMFS}},init(input,output,error){FS.initialized=true;input??=Module["stdin"];output??=Module["stdout"];error??=Module["stderr"];FS.createStandardStreams(input,output,error)},quit(){FS.initialized=false;for(var stream of FS.streams){if(stream){FS.close(stream)}}},findObject(path,dontResolveLastLink){var ret=FS.analyzePath(path,dontResolveLastLink);if(!ret.exists){return null}return ret.object},analyzePath(path,dontResolveLastLink){try{var lookup=FS.lookupPath(path,{follow:!dontResolveLastLink});path=lookup.path}catch(e){}var ret={isRoot:false,exists:false,error:0,name:null,path:null,object:null,parentExists:false,parentPath:null,parentObject:null};try{var lookup=FS.lookupPath(path,{parent:true});ret.parentExists=true;ret.parentPath=lookup.path;ret.parentObject=lookup.node;ret.name=PATH.basename(path);lookup=FS.lookupPath(path,{follow:!dontResolveLastLink});ret.exists=true;ret.path=lookup.path;ret.object=lookup.node;ret.name=lookup.node.name;ret.isRoot=lookup.path==="/"}catch(e){ret.error=e.errno}return ret},createPath(parent,path,canRead,canWrite){parent=typeof parent=="string"?parent:FS.getPath(parent);var parts=path.split("/").reverse();while(parts.length){var part=parts.pop();if(!part)continue;var current=PATH.join2(parent,part);try{FS.mkdir(current)}catch(e){if(e.errno!=20)throw e}parent=current}return current},createFile(parent,name,properties,canRead,canWrite){var path=PATH.join2(typeof parent=="string"?parent:FS.getPath(parent),name);var mode=FS_getMode(canRead,canWrite);return FS.create(path,mode)},createDataFile(parent,name,data,canRead,canWrite,canOwn){var path=name;if(parent){parent=typeof parent=="string"?parent:FS.getPath(parent);path=name?PATH.join2(parent,name):parent}var mode=FS_getMode(canRead,canWrite);var node=FS.create(path,mode);if(data){data=FS_fileDataToTypedArray(data);FS.chmod(node,mode|146);var stream=FS.open(node,577);FS.write(stream,data,0,data.length,0,canOwn);FS.close(stream);FS.chmod(node,mode)}},createDevice(parent,name,input,output){var path=PATH.join2(typeof parent=="string"?parent:FS.getPath(parent),name);var mode=FS_getMode(!!input,!!output);FS.createDevice.major??=64;var dev=FS.makedev(FS.createDevice.major++,0);FS.registerDevice(dev,{open(stream){stream.seekable=false},close(stream){if(output?.buffer?.length){output(10)}},read(stream,buffer,offset,length,pos){var bytesRead=0;for(var i=0;i<length;i++){var result;try{result=input()}catch(e){throw new FS.ErrnoError(29)}if(result===undefined&&bytesRead===0){throw new FS.ErrnoError(6)}if(result===null||result===undefined)break;bytesRead++;buffer[offset+i]=result}if(bytesRead){stream.node.atime=Date.now()}return bytesRead},write(stream,buffer,offset,length,pos){for(var i=0;i<length;i++){try{output(buffer[offset+i])}catch(e){throw new FS.ErrnoError(29)}}if(length){stream.node.mtime=stream.node.ctime=Date.now()}return i}});return FS.mkdev(path,mode,dev)},forceLoadFile(obj){if(obj.isDevice||obj.isFolder||obj.link||obj.contents)return true;if(globalThis.XMLHttpRequest){abort("Lazy loading should have been performed (contents set) in createLazyFile, but it was not. Lazy loading only works in web workers. Use --embed-file or --preload-file in emcc on the main thread.")}else{try{obj.contents=readBinary(obj.url)}catch(e){throw new FS.ErrnoError(29)}}},createLazyFile(parent,name,url,canRead,canWrite){class LazyUint8Array{lengthKnown=false;chunks=[];get(idx){if(idx>this.length-1||idx<0){return undefined}var chunkOffset=idx%this.chunkSize;var chunkNum=idx/this.chunkSize|0;return this.getter(chunkNum)[chunkOffset]}setDataGetter(getter){this.getter=getter}cacheLength(){var xhr=new XMLHttpRequest;xhr.open("HEAD",url,false);xhr.send(null);if(!(xhr.status>=200&&xhr.status<300||xhr.status===304))abort("Couldn't load "+url+". Status: "+xhr.status);var datalength=Number(xhr.getResponseHeader("Content-length"));var header;var hasByteServing=(header=xhr.getResponseHeader("Accept-Ranges"))&&header==="bytes";var usesGzip=(header=xhr.getResponseHeader("Content-Encoding"))&&header==="gzip";var chunkSize=1024*1024;if(!hasByteServing)chunkSize=datalength;var doXHR=(from,to)=>{if(from>to)abort(`invalid range (${from}, ${to}) or no bytes requested!`);if(to>datalength-1)abort(`only ${datalength} bytes available! programmer error!`);var xhr=new XMLHttpRequest;xhr.open("GET",url,false);if(datalength!==chunkSize)xhr.setRequestHeader("Range","bytes="+from+"-"+to);xhr.responseType="arraybuffer";if(xhr.overrideMimeType){xhr.overrideMimeType("text/plain; charset=x-user-defined")}xhr.send(null);if(!(xhr.status>=200&&xhr.status<300||xhr.status===304))abort("Couldn't load "+url+". Status: "+xhr.status);if(xhr.response!==undefined){return new Uint8Array(xhr.response||[])}return intArrayFromString(xhr.responseText??"",true)};var lazyArray=this;lazyArray.setDataGetter(chunkNum=>{var start=chunkNum*chunkSize;var end=(chunkNum+1)*chunkSize-1;end=Math.min(end,datalength-1);if(typeof lazyArray.chunks[chunkNum]=="undefined"){lazyArray.chunks[chunkNum]=doXHR(start,end)}if(typeof lazyArray.chunks[chunkNum]=="undefined")abort("doXHR failed!");return lazyArray.chunks[chunkNum]});if(usesGzip||!datalength){chunkSize=datalength=1;datalength=this.getter(0).length;chunkSize=datalength;out("LazyFiles on gzip forces download of the whole file when length is accessed")}this._length=datalength;this._chunkSize=chunkSize;this.lengthKnown=true}get length(){if(!this.lengthKnown){this.cacheLength()}return this._length}get chunkSize(){if(!this.lengthKnown){this.cacheLength()}return this._chunkSize}}if(globalThis.XMLHttpRequest){if(!ENVIRONMENT_IS_WORKER)abort("Cannot do synchronous binary XHRs outside webworkers in modern browsers. Use --embed-file or --preload-file in emcc");var lazyArray=new LazyUint8Array;var properties={isDevice:false,contents:lazyArray}}else{var properties={isDevice:false,url}}var node=FS.createFile(parent,name,properties,canRead,canWrite);if(properties.contents){node.contents=properties.contents}else if(properties.url){node.contents=null;node.url=properties.url}Object.defineProperties(node,{usedBytes:{get:function(){return this.contents.length}}});var stream_ops={};for(const[key,fn]of Object.entries(node.stream_ops)){stream_ops[key]=(...args)=>{FS.forceLoadFile(node);return fn(...args)}}function writeChunks(stream,buffer,offset,length,position){var contents=stream.node.contents;if(position>=contents.length)return 0;var size=Math.min(contents.length-position,length);if(contents.slice){for(var i=0;i<size;i++){buffer[offset+i]=contents[position+i]}}else{for(var i=0;i<size;i++){buffer[offset+i]=contents.get(position+i)}}return size}stream_ops.read=(stream,buffer,offset,length,position)=>{FS.forceLoadFile(node);return writeChunks(stream,buffer,offset,length,position)};stream_ops.mmap=(stream,length,position,prot,flags)=>{FS.forceLoadFile(node);var ptr=mmapAlloc(length);if(!ptr){throw new FS.ErrnoError(48)}writeChunks(stream,HEAP8,ptr,length,position);return{ptr,allocated:true}};node.stream_ops=stream_ops;return node}};var SOCKFS={websocketArgs:{},callbacks:{},on(event,callback){SOCKFS.callbacks[event]=callback},emit(event,param){SOCKFS.callbacks[event]?.(param)},mount(mount){SOCKFS.websocketArgs=Module["websocket"]||{};(Module["websocket"]??={})["on"]=SOCKFS.on;return FS.createNode(null,"/",16895,0)},createSocket(family,type,protocol){if(family!=2){throw new FS.ErrnoError(5)}type&=~526336;if(type!=1&&type!=2){throw new FS.ErrnoError(28)}var streaming=type==1;if(streaming&&protocol&&protocol!=6){throw new FS.ErrnoError(66)}var sock={family,type,protocol,server:null,error:null,peers:{},pending:[],recv_queue:[],sock_ops:SOCKFS.websocket_sock_ops};var name=SOCKFS.nextname();var node=FS.createNode(SOCKFS.root,name,49152,0);node.sock=sock;var stream=FS.createStream({path:name,node,flags:2,seekable:false,stream_ops:SOCKFS.stream_ops});sock.stream=stream;return sock},getSocket(fd){var stream=FS.getStream(fd);if(!stream||!FS.isSocket(stream.node.mode)){return null}return stream.node.sock},stream_ops:{poll(stream){var sock=stream.node.sock;return sock.sock_ops.poll(sock)},ioctl(stream,request,varargs){var sock=stream.node.sock;return sock.sock_ops.ioctl(sock,request,varargs)},read(stream,buffer,offset,length,position){var sock=stream.node.sock;var msg=sock.sock_ops.recvmsg(sock,length);if(!msg){return 0}buffer.set(msg.buffer,offset);return msg.buffer.length},write(stream,buffer,offset,length,position){var sock=stream.node.sock;return sock.sock_ops.sendmsg(sock,buffer,offset,length)},close(stream){var sock=stream.node.sock;sock.sock_ops.close(sock)}},nextname(){if(!SOCKFS.nextname.current){SOCKFS.nextname.current=0}return`socket[${SOCKFS.nextname.current++}]`},websocket_sock_ops:{createPeer(sock,addr,port){var ws;if(typeof addr=="object"){ws=addr;addr=null;port=null}if(ws){if(ws._socket){addr=ws._socket.remoteAddress;port=ws._socket.remotePort}else{var result=/ws[s]?:\/\/([^:]+):(\d+)/.exec(ws.url);if(!result){throw new Error("WebSocket URL must be in the format ws(s)://address:port")}addr=result[1];port=parseInt(result[2],10)}}else{try{var url="ws://".replace("#","//");var subProtocols="binary";var opts=undefined;if(SOCKFS.websocketArgs["url"]){url=SOCKFS.websocketArgs["url"]}if(SOCKFS.websocketArgs["subprotocol"]){subProtocols=SOCKFS.websocketArgs["subprotocol"]}else if(SOCKFS.websocketArgs["subprotocol"]===null){subProtocols="null"}if(url==="ws://"||url==="wss://"){var parts=addr.split("/");url=url+parts[0]+":"+port+"/"+parts.slice(1).join("/")}if(subProtocols!=="null"){subProtocols=subProtocols.replace(/^ +| +$/g,"").split(/ *, */);opts=subProtocols}var WebSocketConstructor;if(ENVIRONMENT_IS_NODE){WebSocketConstructor=require("ws")}else{WebSocketConstructor=WebSocket}ws=new WebSocketConstructor(url,opts);ws.binaryType="arraybuffer"}catch(e){throw new FS.ErrnoError(23)}}var peer={addr,port,socket:ws,msg_send_queue:[]};SOCKFS.websocket_sock_ops.addPeer(sock,peer);SOCKFS.websocket_sock_ops.handlePeerEvents(sock,peer);if(sock.type===2&&typeof sock.sport!="undefined"){peer.msg_send_queue.push(new Uint8Array([255,255,255,255,"p".charCodeAt(0),"o".charCodeAt(0),"r".charCodeAt(0),"t".charCodeAt(0),(sock.sport&65280)>>8,sock.sport&255]))}return peer},getPeer(sock,addr,port){return sock.peers[addr+":"+port]},addPeer(sock,peer){sock.peers[peer.addr+":"+peer.port]=peer},removePeer(sock,peer){delete sock.peers[peer.addr+":"+peer.port]},handlePeerEvents(sock,peer){var first=true;function handleOpen(){sock.connecting=false;SOCKFS.emit("open",sock.stream.fd);try{var queued=peer.msg_send_queue.shift();while(queued){peer.socket.send(queued);queued=peer.msg_send_queue.shift()}}catch(e){peer.socket.close()}}function handleMessage(data){if(typeof data=="string"){var encoder=new TextEncoder;data=encoder.encode(data)}else{if(data.byteLength==0){return}data=new Uint8Array(data)}var wasfirst=first;first=false;if(wasfirst&&data.length===10&&data[0]===255&&data[1]===255&&data[2]===255&&data[3]===255&&data[4]==="p".charCodeAt(0)&&data[5]==="o".charCodeAt(0)&&data[6]==="r".charCodeAt(0)&&data[7]==="t".charCodeAt(0)){var newport=data[8]<<8|data[9];SOCKFS.websocket_sock_ops.removePeer(sock,peer);peer.port=newport;SOCKFS.websocket_sock_ops.addPeer(sock,peer);return}sock.recv_queue.push({addr:peer.addr,port:peer.port,data});SOCKFS.emit("message",sock.stream.fd)}if(ENVIRONMENT_IS_NODE){peer.socket.on("open",handleOpen);peer.socket.on("message",(data,isBinary)=>{if(!isBinary){return}handleMessage(new Uint8Array(data).buffer)});peer.socket.on("close",()=>SOCKFS.emit("close",sock.stream.fd));peer.socket.on("error",error=>{sock.error=14;SOCKFS.emit("error",[sock.stream.fd,sock.error,"ECONNREFUSED: Connection refused"])});return}peer.socket.onopen=handleOpen;peer.socket.onclose=()=>SOCKFS.emit("close",sock.stream.fd);peer.socket.onmessage=event=>handleMessage(event.data);peer.socket.onerror=error=>{sock.error=14;SOCKFS.emit("error",[sock.stream.fd,sock.error,"ECONNREFUSED: Connection refused"])}},poll(sock){if(sock.type===1&&sock.server){return sock.pending.length?64|1:0}var mask=0;var dest=sock.type===1?SOCKFS.websocket_sock_ops.getPeer(sock,sock.daddr,sock.dport):null;if(sock.recv_queue.length||!dest||dest&&dest.socket.readyState===dest.socket.CLOSING||dest&&dest.socket.readyState===dest.socket.CLOSED){mask|=64|1}if(!dest||dest&&dest.socket.readyState===dest.socket.OPEN){mask|=4}if(dest&&dest.socket.readyState===dest.socket.CLOSING||dest&&dest.socket.readyState===dest.socket.CLOSED){if(sock.connecting){mask|=4}else{mask|=16}}return mask},ioctl(sock,request,arg){switch(request){case 21531:var bytes=0;if(sock.recv_queue.length){bytes=sock.recv_queue[0].data.length}HEAP32[arg>>2]=bytes;return 0;case 21537:var on=HEAP32[arg>>2];if(on){sock.stream.flags|=2048}else{sock.stream.flags&=~2048}return 0;default:return 28}},close(sock){if(sock.server){try{sock.server.close()}catch(e){}sock.server=null}for(var peer of Object.values(sock.peers)){try{peer.socket.close()}catch(e){}SOCKFS.websocket_sock_ops.removePeer(sock,peer)}return 0},bind(sock,addr,port){if(typeof sock.saddr!="undefined"||typeof sock.sport!="undefined"){throw new FS.ErrnoError(28)}sock.saddr=addr;sock.sport=port;if(sock.type===2){if(sock.server){sock.server.close();sock.server=null}try{sock.sock_ops.listen(sock,0)}catch(e){if(!(e.name==="ErrnoError"))throw e;if(e.errno!==138)throw e}}},connect(sock,addr,port){if(sock.server){throw new FS.ErrnoError(138)}if(typeof sock.daddr!="undefined"&&typeof sock.dport!="undefined"){var dest=SOCKFS.websocket_sock_ops.getPeer(sock,sock.daddr,sock.dport);if(dest){if(dest.socket.readyState===dest.socket.CONNECTING){throw new FS.ErrnoError(7)}else{throw new FS.ErrnoError(30)}}}var peer=SOCKFS.websocket_sock_ops.createPeer(sock,addr,port);sock.daddr=peer.addr;sock.dport=peer.port;sock.connecting=true},listen(sock,backlog){if(!ENVIRONMENT_IS_NODE){throw new FS.ErrnoError(138)}if(sock.server){throw new FS.ErrnoError(28)}var WebSocketServer=require("ws").Server;var host=sock.saddr;sock.server=new WebSocketServer({host,port:sock.sport});SOCKFS.emit("listen",sock.stream.fd);sock.server.on("connection",ws=>{if(sock.type===1){var newsock=SOCKFS.createSocket(sock.family,sock.type,sock.protocol);var peer=SOCKFS.websocket_sock_ops.createPeer(newsock,ws);newsock.daddr=peer.addr;newsock.dport=peer.port;sock.pending.push(newsock);SOCKFS.emit("connection",newsock.stream.fd)}else{SOCKFS.websocket_sock_ops.createPeer(sock,ws);SOCKFS.emit("connection",sock.stream.fd)}});sock.server.on("close",()=>{SOCKFS.emit("close",sock.stream.fd);sock.server=null});sock.server.on("error",error=>{sock.error=23;SOCKFS.emit("error",[sock.stream.fd,sock.error,"EHOSTUNREACH: Host is unreachable"])})},accept(listensock){if(!listensock.server||!listensock.pending.length){throw new FS.ErrnoError(28)}var newsock=listensock.pending.shift();newsock.stream.flags=listensock.stream.flags;return newsock},getname(sock,peer){var addr,port;if(peer){if(sock.daddr===undefined||sock.dport===undefined){throw new FS.ErrnoError(53)}addr=sock.daddr;port=sock.dport}else{addr=sock.saddr||0;port=sock.sport||0}return{addr,port}},sendmsg(sock,buffer,offset,length,addr,port){if(sock.type===2){if(addr===undefined||port===undefined){addr=sock.daddr;port=sock.dport}if(addr===undefined||port===undefined){throw new FS.ErrnoError(17)}}else{addr=sock.daddr;port=sock.dport}var dest=SOCKFS.websocket_sock_ops.getPeer(sock,addr,port);if(sock.type===1){if(!dest||dest.socket.readyState===dest.socket.CLOSING||dest.socket.readyState===dest.socket.CLOSED){throw new FS.ErrnoError(53)}}if(ArrayBuffer.isView(buffer)){offset+=buffer.byteOffset;buffer=buffer.buffer}var data=buffer.slice(offset,offset+length);if(!dest||dest.socket.readyState!==dest.socket.OPEN){if(sock.type===2){if(!dest||dest.socket.readyState===dest.socket.CLOSING||dest.socket.readyState===dest.socket.CLOSED){dest=SOCKFS.websocket_sock_ops.createPeer(sock,addr,port)}}dest.msg_send_queue.push(data);return length}try{dest.socket.send(data);return length}catch(e){throw new FS.ErrnoError(28)}},recvmsg(sock,length){if(sock.type===1&&sock.server){throw new FS.ErrnoError(53)}var queued=sock.recv_queue.shift();if(!queued){if(sock.type===1){var dest=SOCKFS.websocket_sock_ops.getPeer(sock,sock.daddr,sock.dport);if(!dest){throw new FS.ErrnoError(53)}if(dest.socket.readyState===dest.socket.CLOSING||dest.socket.readyState===dest.socket.CLOSED){return null}throw new FS.ErrnoError(6)}throw new FS.ErrnoError(6)}var queuedLength=queued.data.byteLength||queued.data.length;var queuedOffset=queued.data.byteOffset||0;var queuedBuffer=queued.data.buffer||queued.data;var bytesRead=Math.min(length,queuedLength);var res={buffer:new Uint8Array(queuedBuffer,queuedOffset,bytesRead),addr:queued.addr,port:queued.port};if(sock.type===1&&bytesRead<queuedLength){var bytesRemaining=queuedLength-bytesRead;queued.data=new Uint8Array(queuedBuffer,queuedOffset+bytesRead,bytesRemaining);sock.recv_queue.unshift(queued)}return res}}};var getSocketFromFD=fd=>{var socket=SOCKFS.getSocket(fd);if(!socket)throw new FS.ErrnoError(8);return socket};var inetPton4=str=>{var b=str.split(".");for(var i=0;i<4;i++){var tmp=Number(b[i]);if(isNaN(tmp))return null;b[i]=tmp}return(b[0]|b[1]<<8|b[2]<<16|b[3]<<24)>>>0};var inetPton6=str=>{var words;var w,offset,z;var valid6regx=/^((?=.*::)(?!.*::.+::)(::)?([\dA-F]{1,4}:(:|\b)|){5}|([\dA-F]{1,4}:){6})((([\dA-F]{1,4}((?!\3)::|:\b|$))|(?!\2\3)){2}|(((2[0-4]|1\d|[1-9])?\d|25[0-5])\.?\b){4})$/i;var parts=[];if(!valid6regx.test(str)){return null}if(str==="::"){return[0,0,0,0,0,0,0,0]}if(str.startsWith("::")){str=str.replace("::","Z:")}else{str=str.replace("::",":Z:")}if(str.indexOf(".")>0){str=str.replace(new RegExp("[.]","g"),":");words=str.split(":");words[words.length-4]=Number(words[words.length-4])+Number(words[words.length-3])*256;words[words.length-3]=Number(words[words.length-2])+Number(words[words.length-1])*256;words=words.slice(0,words.length-2)}else{words=str.split(":")}offset=0;z=0;for(w=0;w<words.length;w++){if(typeof words[w]=="string"){if(words[w]==="Z"){for(z=0;z<8-words.length+1;z++){parts[w+z]=0}offset=z-1}else{parts[w+offset]=_htons(parseInt(words[w],16))}}else{parts[w+offset]=words[w]}}return[parts[1]<<16|parts[0],parts[3]<<16|parts[2],parts[5]<<16|parts[4],parts[7]<<16|parts[6]]};var zeroMemory=(ptr,size)=>HEAPU8.fill(0,ptr,ptr+size);var writeSockaddr=(sa,family,addr,port,addrlen)=>{switch(family){case 2:addr=inetPton4(addr);zeroMemory(sa,16);if(addrlen){HEAP32[addrlen>>2]=16}HEAP16[sa>>1]=family;HEAP32[sa+4>>2]=addr;HEAP16[sa+2>>1]=_htons(port);break;case 10:addr=inetPton6(addr);zeroMemory(sa,28);if(addrlen){HEAP32[addrlen>>2]=28}HEAP32[sa>>2]=family;HEAP32[sa+8>>2]=addr[0];HEAP32[sa+12>>2]=addr[1];HEAP32[sa+16>>2]=addr[2];HEAP32[sa+20>>2]=addr[3];HEAP16[sa+2>>1]=_htons(port);break;default:return 5}return 0};var DNS={address_map:{id:1,addrs:{},names:{}},lookup_name(name){var res=inetPton4(name);if(res!==null){return name}res=inetPton6(name);if(res!==null){return name}var addr;if(DNS.address_map.addrs[name]){addr=DNS.address_map.addrs[name]}else{var id=DNS.address_map.id++;addr="172.29."+(id&255)+"."+(id&65280);DNS.address_map.names[addr]=name;DNS.address_map.addrs[name]=addr}return addr},lookup_addr(addr){if(DNS.address_map.names[addr]){return DNS.address_map.names[addr]}return null}};function ___syscall_accept4(fd,addr,addrlen,flags,d1,d2){try{var sock=getSocketFromFD(fd);var newsock=sock.sock_ops.accept(sock);if(addr){var errno=writeSockaddr(addr,newsock.family,DNS.lookup_name(newsock.daddr),newsock.dport,addrlen)}return newsock.stream.fd}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}var inetNtop4=addr=>(addr&255)+"."+(addr>>8&255)+"."+(addr>>16&255)+"."+(addr>>24&255);var inetNtop6=ints=>{var str="";var word=0;var longest=0;var lastzero=0;var zstart=0;var len=0;var i=0;var parts=[ints[0]&65535,ints[0]>>16,ints[1]&65535,ints[1]>>16,ints[2]&65535,ints[2]>>16,ints[3]&65535,ints[3]>>16];var hasipv4=true;var v4part="";for(i=0;i<5;i++){if(parts[i]!==0){hasipv4=false;break}}if(hasipv4){v4part=inetNtop4(parts[6]|parts[7]<<16);if(parts[5]===-1){str="::ffff:";str+=v4part;return str}if(parts[5]===0){str="::";if(v4part==="0.0.0.0")v4part="";if(v4part==="0.0.0.1")v4part="1";str+=v4part;return str}}for(word=0;word<8;word++){if(parts[word]===0){if(word-lastzero>1){len=0}lastzero=word;len++}if(len>longest){longest=len;zstart=word-longest+1}}for(word=0;word<8;word++){if(longest>1){if(parts[word]===0&&word>=zstart&&word<zstart+longest){if(word===zstart){str+=":";if(zstart===0)str+=":"}continue}}str+=Number(_ntohs(parts[word]&65535)).toString(16);str+=word<7?":":""}return str};var readSockaddr=(sa,salen)=>{var family=HEAP16[sa>>1];var port=_ntohs(HEAPU16[sa+2>>1]);var addr;switch(family){case 2:if(salen!==16){return{errno:28}}addr=HEAP32[sa+4>>2];addr=inetNtop4(addr);break;case 10:if(salen!==28){return{errno:28}}addr=[HEAP32[sa+8>>2],HEAP32[sa+12>>2],HEAP32[sa+16>>2],HEAP32[sa+20>>2]];addr=inetNtop6(addr);break;default:return{errno:5}}return{family,addr,port}};var getSocketAddress=(addrp,addrlen)=>{var info=readSockaddr(addrp,addrlen);if(info.errno)throw new FS.ErrnoError(info.errno);info.addr=DNS.lookup_addr(info.addr)||info.addr;return info};function ___syscall_bind(fd,addr,addrlen,d1,d2,d3){try{var sock=getSocketFromFD(fd);var info=getSocketAddress(addr,addrlen);sock.sock_ops.bind(sock,info.addr,info.port);return 0}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}function ___syscall_connect(fd,addr,addrlen,d1,d2,d3){try{var sock=getSocketFromFD(fd);var info=getSocketAddress(addr,addrlen);sock.sock_ops.connect(sock,info.addr,info.port);return 0}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}var UTF8ToString=(ptr,maxBytesToRead,ignoreNul)=>ptr?UTF8ArrayToString(HEAPU8,ptr,maxBytesToRead,ignoreNul):"";var SYSCALLS={currentUmask:18,calculateAt(dirfd,path,allowEmpty){if(PATH.isAbs(path)){return path}var dir;if(dirfd===-100){dir=FS.cwd()}else{var dirstream=SYSCALLS.getStreamFromFD(dirfd);dir=dirstream.path}if(path.length==0){if(!allowEmpty){throw new FS.ErrnoError(44)}return dir}return dir+"/"+path},writeStat(buf,stat){HEAPU32[buf>>2]=stat.dev;HEAPU32[buf+4>>2]=stat.mode;HEAPU32[buf+8>>2]=stat.nlink;HEAPU32[buf+12>>2]=stat.uid;HEAPU32[buf+16>>2]=stat.gid;HEAPU32[buf+20>>2]=stat.rdev;HEAP64[buf+24>>3]=BigInt(stat.size);HEAP32[buf+32>>2]=4096;HEAP32[buf+36>>2]=stat.blocks;var atime=stat.atime.getTime();var mtime=stat.mtime.getTime();var ctime=stat.ctime.getTime();HEAP64[buf+40>>3]=BigInt(Math.floor(atime/1e3));HEAPU32[buf+48>>2]=atime%1e3*1e3*1e3;HEAP64[buf+56>>3]=BigInt(Math.floor(mtime/1e3));HEAPU32[buf+64>>2]=mtime%1e3*1e3*1e3;HEAP64[buf+72>>3]=BigInt(Math.floor(ctime/1e3));HEAPU32[buf+80>>2]=ctime%1e3*1e3*1e3;HEAP64[buf+88>>3]=BigInt(stat.ino);return 0},writeStatFs(buf,stats){HEAPU32[buf+4>>2]=stats.bsize;HEAPU32[buf+60>>2]=stats.bsize;HEAP64[buf+8>>3]=BigInt(stats.blocks);HEAP64[buf+16>>3]=BigInt(stats.bfree);HEAP64[buf+24>>3]=BigInt(stats.bavail);HEAP64[buf+32>>3]=BigInt(stats.files);HEAP64[buf+40>>3]=BigInt(stats.ffree);HEAPU32[buf+48>>2]=stats.fsid;HEAPU32[buf+64>>2]=stats.flags;HEAPU32[buf+56>>2]=stats.namelen},doMsync(addr,stream,len,flags,offset){if(!FS.isFile(stream.node.mode)){throw new FS.ErrnoError(43)}if(flags&2){return 0}var buffer=HEAPU8.slice(addr,addr+len);FS.msync(stream,buffer,offset,len,flags)},getStreamFromFD(fd){var stream=FS.getStreamChecked(fd);return stream},varargs:undefined,getStr(ptr){var ret=UTF8ToString(ptr);return ret}};function ___syscall_dup3(fd,newfd,flags){try{if(fd===newfd)return-28;if(flags&~524288)return-28;var old=SYSCALLS.getStreamFromFD(fd);if(newfd<0||newfd>=FS.MAX_OPEN_FDS)return-8;var existing=FS.getStream(newfd);if(existing)FS.close(existing);var stream=FS.dupStream(old,newfd);if(flags&524288){stream.flags|=524288}return stream.fd}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}var syscallGetVarargI=()=>{var ret=HEAP32[+SYSCALLS.varargs>>2];SYSCALLS.varargs+=4;return ret};var syscallGetVarargP=syscallGetVarargI;function ___syscall_fcntl64(fd,cmd,varargs){SYSCALLS.varargs=varargs;try{var stream=SYSCALLS.getStreamFromFD(fd);switch(cmd){case 0:{var arg=syscallGetVarargI();if(arg<0){return-28}while(FS.streams[arg]){arg++}var newStream;newStream=FS.dupStream(stream,arg);return newStream.fd}case 1:case 2:return 0;case 3:return stream.flags;case 4:{var arg=syscallGetVarargI();var mask=289792;stream.flags=stream.flags&~mask|arg&mask;return 0}case 12:{var arg=syscallGetVarargP();var offset=0;HEAP16[arg+offset>>1]=2;return 0}case 13:case 14:return 0}return-28}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}function ___syscall_fstat64(fd,buf){try{return SYSCALLS.writeStat(buf,FS.fstat(fd))}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}var stringToUTF8=(str,outPtr,maxBytesToWrite)=>stringToUTF8Array(str,HEAPU8,outPtr,maxBytesToWrite);function ___syscall_getcwd(buf,size){try{if(size===0)return-28;var cwd=FS.cwd();var cwdLengthInBytes=lengthBytesUTF8(cwd)+1;if(size<cwdLengthInBytes)return-68;stringToUTF8(cwd,buf,size);return cwdLengthInBytes}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}function ___syscall_ioctl(fd,op,varargs){SYSCALLS.varargs=varargs;try{var stream=SYSCALLS.getStreamFromFD(fd);switch(op){case 21509:{if(!stream.tty)return-59;return 0}case 21505:{if(!stream.tty)return-59;if(stream.tty.ops.ioctl_tcgets){var termios=stream.tty.ops.ioctl_tcgets(stream);var argp=syscallGetVarargP();HEAP32[argp>>2]=termios.c_iflag||0;HEAP32[argp+4>>2]=termios.c_oflag||0;HEAP32[argp+8>>2]=termios.c_cflag||0;HEAP32[argp+12>>2]=termios.c_lflag||0;for(var i=0;i<32;i++){HEAP8[argp+i+17]=termios.c_cc[i]||0}return 0}return 0}case 21510:case 21511:case 21512:{if(!stream.tty)return-59;return 0}case 21506:case 21507:case 21508:{if(!stream.tty)return-59;if(stream.tty.ops.ioctl_tcsets){var argp=syscallGetVarargP();var c_iflag=HEAP32[argp>>2];var c_oflag=HEAP32[argp+4>>2];var c_cflag=HEAP32[argp+8>>2];var c_lflag=HEAP32[argp+12>>2];var c_cc=[];for(var i=0;i<32;i++){c_cc.push(HEAP8[argp+i+17])}return stream.tty.ops.ioctl_tcsets(stream.tty,op,{c_iflag,c_oflag,c_cflag,c_lflag,c_cc})}return 0}case 21519:{if(!stream.tty)return-59;var argp=syscallGetVarargP();HEAP32[argp>>2]=0;return 0}case 21520:{if(!stream.tty)return-59;return-28}case 21537:case 21531:{var argp=syscallGetVarargP();return FS.ioctl(stream,op,argp)}case 21523:{if(!stream.tty)return-59;if(stream.tty.ops.ioctl_tiocgwinsz){var winsize=stream.tty.ops.ioctl_tiocgwinsz(stream.tty);var argp=syscallGetVarargP();HEAP16[argp>>1]=winsize[0];HEAP16[argp+2>>1]=winsize[1]}return 0}case 21524:{if(!stream.tty)return-59;return 0}case 21515:{if(!stream.tty)return-59;return 0}default:return-28}}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}function ___syscall_listen(fd,backlog){try{var sock=getSocketFromFD(fd);sock.sock_ops.listen(sock,backlog);return 0}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}function ___syscall_lstat64(path,buf){try{path=SYSCALLS.getStr(path);return SYSCALLS.writeStat(buf,FS.lstat(path))}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}function ___syscall_newfstatat(dirfd,path,buf,flags){try{path=SYSCALLS.getStr(path);var nofollow=flags&256;var allowEmpty=flags&4096;flags=flags&~6400;path=SYSCALLS.calculateAt(dirfd,path,allowEmpty);return SYSCALLS.writeStat(buf,nofollow?FS.lstat(path):FS.stat(path))}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}function ___syscall_openat(dirfd,path,flags,varargs){SYSCALLS.varargs=varargs;try{path=SYSCALLS.getStr(path);path=SYSCALLS.calculateAt(dirfd,path);var mode=varargs?syscallGetVarargI():0;if(flags&64){mode&=~SYSCALLS.currentUmask}return FS.open(path,flags,mode).fd}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}var PIPEFS={BUCKET_BUFFER_SIZE:8192,mount(mount){return FS.createNode(null,"/",16384|511,0)},createPipe(){var pipe={buckets:[],refcnt:2,timestamp:new Date};pipe.buckets.push({buffer:new Uint8Array(PIPEFS.BUCKET_BUFFER_SIZE),offset:0,roffset:0});var rName=PIPEFS.nextname();var wName=PIPEFS.nextname();var rNode=FS.createNode(PIPEFS.root,rName,4096,0);var wNode=FS.createNode(PIPEFS.root,wName,4096,0);rNode.pipe=pipe;wNode.pipe=pipe;var readableStream=FS.createStream({path:rName,node:rNode,flags:0,seekable:false,stream_ops:PIPEFS.stream_ops});rNode.stream=readableStream;var writableStream=FS.createStream({path:wName,node:wNode,flags:1,seekable:false,stream_ops:PIPEFS.stream_ops});wNode.stream=writableStream;return{readable_fd:readableStream.fd,writable_fd:writableStream.fd}},stream_ops:{getattr(stream){var node=stream.node;var timestamp=node.pipe.timestamp;return{dev:14,ino:node.id,mode:4480,nlink:1,uid:0,gid:0,rdev:0,size:0,atime:timestamp,mtime:timestamp,ctime:timestamp,blksize:4096,blocks:0}},poll(stream,timeout,notifyCallback){var pipe=stream.node.pipe;if((stream.flags&2097155)===1){return 256|4}for(var bucket of pipe.buckets){if(bucket.offset-bucket.roffset>0){return 64|1}}return 0},dup(stream){stream.node.pipe.refcnt++},ioctl(stream,request,argp){if(request==21531){var pipe=stream.node.pipe;var currentLength=0;for(var bucket of pipe.buckets){currentLength+=bucket.offset-bucket.roffset}HEAP32[argp>>2]=currentLength;return 0}return 28},fsync(stream){return 28},read(stream,buffer,offset,length,position){var pipe=stream.node.pipe;var currentLength=0;for(var bucket of pipe.buckets){currentLength+=bucket.offset-bucket.roffset}var data=buffer.subarray(offset,offset+length);if(length<=0){return 0}if(currentLength==0){throw new FS.ErrnoError(6)}var toRead=Math.min(currentLength,length);var totalRead=toRead;var toRemove=0;for(var bucket of pipe.buckets){var bucketSize=bucket.offset-bucket.roffset;if(toRead<=bucketSize){var tmpSlice=bucket.buffer.subarray(bucket.roffset,bucket.offset);if(toRead<bucketSize){tmpSlice=tmpSlice.subarray(0,toRead);bucket.roffset+=toRead}else{toRemove++}data.set(tmpSlice);break}else{var tmpSlice=bucket.buffer.subarray(bucket.roffset,bucket.offset);data.set(tmpSlice);data=data.subarray(tmpSlice.byteLength);toRead-=tmpSlice.byteLength;toRemove++}}if(toRemove&&toRemove==pipe.buckets.length){toRemove--;pipe.buckets[toRemove].offset=0;pipe.buckets[toRemove].roffset=0}pipe.buckets.splice(0,toRemove);return totalRead},write(stream,buffer,offset,length,position){var pipe=stream.node.pipe;var data=buffer.subarray(offset,offset+length);var dataLen=data.byteLength;if(dataLen<=0){return 0}var currBucket=null;if(pipe.buckets.length==0){currBucket={buffer:new Uint8Array(PIPEFS.BUCKET_BUFFER_SIZE),offset:0,roffset:0};pipe.buckets.push(currBucket)}else{currBucket=pipe.buckets[pipe.buckets.length-1]}var freeBytesInCurrBuffer=PIPEFS.BUCKET_BUFFER_SIZE-currBucket.offset;if(freeBytesInCurrBuffer>=dataLen){currBucket.buffer.set(data,currBucket.offset);currBucket.offset+=dataLen;return dataLen}else if(freeBytesInCurrBuffer>0){currBucket.buffer.set(data.subarray(0,freeBytesInCurrBuffer),currBucket.offset);currBucket.offset+=freeBytesInCurrBuffer;data=data.subarray(freeBytesInCurrBuffer,data.byteLength)}var numBuckets=data.byteLength/PIPEFS.BUCKET_BUFFER_SIZE|0;var remElements=data.byteLength%PIPEFS.BUCKET_BUFFER_SIZE;for(var i=0;i<numBuckets;i++){var newBucket={buffer:new Uint8Array(PIPEFS.BUCKET_BUFFER_SIZE),offset:PIPEFS.BUCKET_BUFFER_SIZE,roffset:0};pipe.buckets.push(newBucket);newBucket.buffer.set(data.subarray(0,PIPEFS.BUCKET_BUFFER_SIZE));data=data.subarray(PIPEFS.BUCKET_BUFFER_SIZE,data.byteLength)}if(remElements>0){var newBucket={buffer:new Uint8Array(PIPEFS.BUCKET_BUFFER_SIZE),offset:data.byteLength,roffset:0};pipe.buckets.push(newBucket);newBucket.buffer.set(data)}return dataLen},close(stream){var pipe=stream.node.pipe;pipe.refcnt--;if(pipe.refcnt===0){pipe.buckets=null}}},nextname(){if(!PIPEFS.nextname.current){PIPEFS.nextname.current=0}return"pipe["+PIPEFS.nextname.current+++"]"}};function ___syscall_pipe2(fdPtr,flags){try{if(fdPtr==0){throw new FS.ErrnoError(21)}var validFlags=524288|2048;if(flags&~validFlags){throw new FS.ErrnoError(138)}var res=PIPEFS.createPipe();if(flags&2048){FS.getStream(res.readable_fd).flags|=2048;FS.getStream(res.writable_fd).flags|=2048}HEAP32[fdPtr>>2]=res.readable_fd;HEAP32[fdPtr+4>>2]=res.writable_fd;return 0}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}function ___syscall_renameat(olddirfd,oldpath,newdirfd,newpath){try{oldpath=SYSCALLS.getStr(oldpath);newpath=SYSCALLS.getStr(newpath);oldpath=SYSCALLS.calculateAt(olddirfd,oldpath);newpath=SYSCALLS.calculateAt(newdirfd,newpath);FS.rename(oldpath,newpath);return 0}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}function ___syscall_socket(domain,type,protocol){try{var sock=SOCKFS.createSocket(domain,type,protocol);return sock.stream.fd}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}function ___syscall_stat64(path,buf){try{path=SYSCALLS.getStr(path);return SYSCALLS.writeStat(buf,FS.stat(path))}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}function ___syscall_unlinkat(dirfd,path,flags){try{path=SYSCALLS.getStr(path);path=SYSCALLS.calculateAt(dirfd,path);if(!flags){FS.unlink(path)}else if(flags===512){FS.rmdir(path)}else{return-28}return 0}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return-e.errno}}var __emscripten_lookup_name=name=>{var nameString=UTF8ToString(name);return inetPton4(DNS.lookup_name(nameString))};var __emscripten_throw_longjmp=()=>{throw new EmscriptenSjLj};var _emscripten_get_now=()=>performance.now();var _emscripten_date_now=()=>Date.now();var nowIsMonotonic=1;var checkWasiClock=clock_id=>clock_id>=0&&clock_id<=3;var INT53_MAX=9007199254740992;var INT53_MIN=-9007199254740992;var bigintToI53Checked=num=>num<INT53_MIN||num>INT53_MAX?NaN:Number(num);function _clock_time_get(clk_id,ignored_precision,ptime){ignored_precision=bigintToI53Checked(ignored_precision);if(!checkWasiClock(clk_id)){return 28}var now;if(clk_id===0){now=_emscripten_date_now()}else if(nowIsMonotonic){now=_emscripten_get_now()}else{return 52}var nsec=Math.round(now*1e3*1e3);HEAP64[ptime>>3]=BigInt(nsec);return 0}var getHeapMax=()=>2147483648;var alignMemory=(size,alignment)=>Math.ceil(size/alignment)*alignment;var growMemory=size=>{var oldHeapSize=wasmMemory.buffer.byteLength;var pages=(size-oldHeapSize+65535)/65536|0;try{wasmMemory.grow(pages);updateMemoryViews();return 1}catch(e){}};var _emscripten_resize_heap=requestedSize=>{var oldSize=HEAPU8.length;requestedSize>>>=0;var maxHeapSize=getHeapMax();if(requestedSize>maxHeapSize){return false}for(var cutDown=1;cutDown<=4;cutDown*=2){var overGrownHeapSize=oldSize*(1+.2/cutDown);overGrownHeapSize=Math.min(overGrownHeapSize,requestedSize+100663296);var newSize=Math.min(maxHeapSize,alignMemory(Math.max(requestedSize,overGrownHeapSize),65536));var replacement=growMemory(newSize);if(replacement){return true}}return false};var ENV={};var getExecutableName=()=>thisProgram;var getEnvStrings=()=>{if(!getEnvStrings.strings){var lang=(globalThis.navigator?.language??"C").replace("-","_")+".UTF-8";var env={USER:"web_user",LOGNAME:"web_user",PATH:"/",PWD:"/",HOME:"/home/web_user",LANG:lang,_:getExecutableName()};for(var x in ENV){if(ENV[x]===undefined)delete env[x];else env[x]=ENV[x]}var strings=[];for(var x in env){strings.push(`${x}=${env[x]}`)}getEnvStrings.strings=strings}return getEnvStrings.strings};var _environ_get=(__environ,environ_buf)=>{var bufSize=0;var envp=0;for(var string of getEnvStrings()){var ptr=environ_buf+bufSize;HEAPU32[__environ+envp>>2]=ptr;bufSize+=stringToUTF8(string,ptr,Infinity)+1;envp+=4}return 0};var _environ_sizes_get=(penviron_count,penviron_buf_size)=>{var strings=getEnvStrings();HEAPU32[penviron_count>>2]=strings.length;var bufSize=0;for(var string of strings){bufSize+=lengthBytesUTF8(string)+1}HEAPU32[penviron_buf_size>>2]=bufSize;return 0};var runtimeKeepaliveCounter=0;var keepRuntimeAlive=()=>noExitRuntime||runtimeKeepaliveCounter>0;var _proc_exit=code=>{EXITSTATUS=code;if(!keepRuntimeAlive()){Module["onExit"]?.(code);ABORT=true}quit_(code,new ExitStatus(code))};var exitJS=(status,implicit)=>{EXITSTATUS=status;_proc_exit(status)};var _exit=exitJS;function _fd_close(fd){try{var stream=SYSCALLS.getStreamFromFD(fd);FS.close(stream);return 0}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return e.errno}}function _fd_fdstat_get(fd,pbuf){try{var rightsBase=0;var rightsInheriting=0;var flags=0;{var stream=SYSCALLS.getStreamFromFD(fd);var type=stream.tty?2:FS.isDir(stream.mode)?3:FS.isLink(stream.mode)?7:4}HEAP8[pbuf]=type;HEAP16[pbuf+2>>1]=flags;HEAP64[pbuf+8>>3]=BigInt(rightsBase);HEAP64[pbuf+16>>3]=BigInt(rightsInheriting);return 0}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return e.errno}}var doReadv=(stream,iov,iovcnt,offset)=>{var ret=0;for(var i=0;i<iovcnt;i++){var ptr=HEAPU32[iov>>2];var len=HEAPU32[iov+4>>2];iov+=8;var curr=FS.read(stream,HEAP8,ptr,len,offset);if(curr<0)return-1;ret+=curr;if(curr<len)break;if(typeof offset!="undefined"){offset+=curr}}return ret};function _fd_read(fd,iov,iovcnt,pnum){try{var stream=SYSCALLS.getStreamFromFD(fd);var num=doReadv(stream,iov,iovcnt);HEAPU32[pnum>>2]=num;return 0}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return e.errno}}function _fd_seek(fd,offset,whence,newOffset){offset=bigintToI53Checked(offset);try{if(isNaN(offset))return 22;var stream=SYSCALLS.getStreamFromFD(fd);FS.llseek(stream,offset,whence);HEAP64[newOffset>>3]=BigInt(stream.position);if(stream.getdents&&offset===0&&whence===0)stream.getdents=null;return 0}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return e.errno}}var doWritev=(stream,iov,iovcnt,offset)=>{var ret=0;for(var i=0;i<iovcnt;i++){var ptr=HEAPU32[iov>>2];var len=HEAPU32[iov+4>>2];iov+=8;var curr=FS.write(stream,HEAP8,ptr,len,offset);if(curr<0)return-1;ret+=curr;if(curr<len){break}if(typeof offset!="undefined"){offset+=curr}}return ret};function _fd_write(fd,iov,iovcnt,pnum){try{var stream=SYSCALLS.getStreamFromFD(fd);var num=doWritev(stream,iov,iovcnt);HEAPU32[pnum>>2]=num;return 0}catch(e){if(typeof FS=="undefined"||!(e.name==="ErrnoError"))throw e;return e.errno}}var wasmTableMirror=[];var getWasmTableEntry=funcPtr=>{var func=wasmTableMirror[funcPtr];if(!func){wasmTableMirror[funcPtr]=func=wasmTable.get(funcPtr)}return func};var getCFunc=ident=>{var func=Module["_"+ident];return func};var writeArrayToMemory=(array,buffer)=>{HEAP8.set(array,buffer)};var stackAlloc=sz=>__emscripten_stack_alloc(sz);var stringToUTF8OnStack=str=>{var size=lengthBytesUTF8(str)+1;var ret=stackAlloc(size);stringToUTF8(str,ret,size);return ret};var ccall=(ident,returnType,argTypes,args,opts)=>{var toC={string:str=>{var ret=0;if(str!==null&&str!==undefined&&str!==0){ret=stringToUTF8OnStack(str)}return ret},array:arr=>{var ret=stackAlloc(arr.length);writeArrayToMemory(arr,ret);return ret}};function convertReturnValue(ret){if(returnType==="string"){return UTF8ToString(ret)}if(returnType==="boolean")return Boolean(ret);return ret}var func=getCFunc(ident);var cArgs=[];var stack=0;if(args){for(var i=0;i<args.length;i++){var converter=toC[argTypes[i]];if(converter){if(stack===0)stack=stackSave();cArgs[i]=converter(args[i])}else{cArgs[i]=args[i]}}}var ret=func(...cArgs);function onDone(ret){if(stack!==0)stackRestore(stack);return convertReturnValue(ret)}ret=onDone(ret);return ret};var cwrap=(ident,returnType,argTypes,opts)=>{var numericArgs=!argTypes||argTypes.every(type=>type==="number"||type==="boolean");var numericRet=returnType!=="string";if(numericRet&&numericArgs&&!opts){return getCFunc(ident)}return(...args)=>ccall(ident,returnType,argTypes,args,opts)};FS.createPreloadedFile=FS_createPreloadedFile;FS.preloadFile=FS_preloadFile;FS.staticInit();{if(Module["noExitRuntime"])noExitRuntime=Module["noExitRuntime"];if(Module["preloadPlugins"])preloadPlugins=Module["preloadPlugins"];if(Module["print"])out=Module["print"];if(Module["printErr"])err=Module["printErr"];if(Module["wasmBinary"])wasmBinary=Module["wasmBinary"];if(Module["arguments"])programArgs=Module["arguments"];if(Module["thisProgram"])thisProgram=Module["thisProgram"];if(Module["preInit"]){if(typeof Module["preInit"]=="function")Module["preInit"]=[Module["preInit"]];while(Module["preInit"].length>0){Module["preInit"].shift()()}}}Module["ccall"]=ccall;Module["cwrap"]=cwrap;Module["UTF8ToString"]=UTF8ToString;Module["stringToUTF8"]=stringToUTF8;Module["lengthBytesUTF8"]=lengthBytesUTF8;var _malloc,_free,_htons,_lumbda_wasm_init,_lumbda_wasm_eval,_lumbda_wasm_free_result,_ntohs,_setThrew,__emscripten_stack_restore,__emscripten_stack_alloc,_emscripten_stack_get_current,memory,__indirect_function_table,wasmMemory,wasmTable;function assignWasmExports(wasmExports){_malloc=Module["_malloc"]=wasmExports["malloc"];_free=Module["_free"]=wasmExports["free"];_htons=wasmExports["htons"];_lumbda_wasm_init=Module["_lumbda_wasm_init"]=wasmExports["lumbda_wasm_init"];_lumbda_wasm_eval=Module["_lumbda_wasm_eval"]=wasmExports["lumbda_wasm_eval"];_lumbda_wasm_free_result=Module["_lumbda_wasm_free_result"]=wasmExports["lumbda_wasm_free_result"];_ntohs=wasmExports["ntohs"];_setThrew=wasmExports["setThrew"];__emscripten_stack_restore=wasmExports["_emscripten_stack_restore"];__emscripten_stack_alloc=wasmExports["_emscripten_stack_alloc"];_emscripten_stack_get_current=wasmExports["emscripten_stack_get_current"];memory=wasmMemory=wasmExports["memory"];__indirect_function_table=wasmTable=wasmExports["__indirect_function_table"]}var wasmImports={__syscall_accept4:___syscall_accept4,__syscall_bind:___syscall_bind,__syscall_connect:___syscall_connect,__syscall_dup3:___syscall_dup3,__syscall_fcntl64:___syscall_fcntl64,__syscall_fstat64:___syscall_fstat64,__syscall_getcwd:___syscall_getcwd,__syscall_ioctl:___syscall_ioctl,__syscall_listen:___syscall_listen,__syscall_lstat64:___syscall_lstat64,__syscall_newfstatat:___syscall_newfstatat,__syscall_openat:___syscall_openat,__syscall_pipe2:___syscall_pipe2,__syscall_renameat:___syscall_renameat,__syscall_socket:___syscall_socket,__syscall_stat64:___syscall_stat64,__syscall_unlinkat:___syscall_unlinkat,_emscripten_lookup_name:__emscripten_lookup_name,_emscripten_throw_longjmp:__emscripten_throw_longjmp,clock_time_get:_clock_time_get,emscripten_get_now:_emscripten_get_now,emscripten_resize_heap:_emscripten_resize_heap,environ_get:_environ_get,environ_sizes_get:_environ_sizes_get,exit:_exit,fd_close:_fd_close,fd_fdstat_get:_fd_fdstat_get,fd_read:_fd_read,fd_seek:_fd_seek,fd_write:_fd_write,invoke_i,invoke_ii,invoke_iii,invoke_iiii,invoke_iiiii,invoke_iiiiiiiiii,invoke_iiiiijiiiii,invoke_iiiijii,invoke_iiij,invoke_iiijiii,invoke_iijj,invoke_ij,invoke_iji,invoke_ijj,invoke_ji,invoke_jii,invoke_jiii,invoke_jij,invoke_jj,invoke_jji,invoke_jjii,invoke_jjiii,invoke_jjj,invoke_jjjjjjj,invoke_v,invoke_vi,invoke_vii,invoke_viii,invoke_viiii,invoke_viiiii,invoke_viiji,invoke_vij,invoke_vijj,invoke_vjii,invoke_vjiii,proc_exit:_proc_exit};function invoke_jij(index,a1,a2){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0);return 0n}}function invoke_vii(index,a1,a2){var sp=stackSave();try{getWasmTableEntry(index)(a1,a2)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_jji(index,a1,a2){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0);return 0n}}function invoke_iiiijii(index,a1,a2,a3,a4,a5,a6){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3,a4,a5,a6)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_jjiii(index,a1,a2,a3,a4){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3,a4)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0);return 0n}}function invoke_ijj(index,a1,a2){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_iji(index,a1,a2){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_vij(index,a1,a2){var sp=stackSave();try{getWasmTableEntry(index)(a1,a2)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_ij(index,a1){var sp=stackSave();try{return getWasmTableEntry(index)(a1)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_iiijiii(index,a1,a2,a3,a4,a5,a6){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3,a4,a5,a6)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_ii(index,a1){var sp=stackSave();try{return getWasmTableEntry(index)(a1)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_vijj(index,a1,a2,a3){var sp=stackSave();try{getWasmTableEntry(index)(a1,a2,a3)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_iijj(index,a1,a2,a3){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_jjii(index,a1,a2,a3){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0);return 0n}}function invoke_jj(index,a1){var sp=stackSave();try{return getWasmTableEntry(index)(a1)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0);return 0n}}function invoke_viiii(index,a1,a2,a3,a4){var sp=stackSave();try{getWasmTableEntry(index)(a1,a2,a3,a4)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_jiii(index,a1,a2,a3){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0);return 0n}}function invoke_iiiii(index,a1,a2,a3,a4){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3,a4)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_viii(index,a1,a2,a3){var sp=stackSave();try{getWasmTableEntry(index)(a1,a2,a3)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_vjii(index,a1,a2,a3){var sp=stackSave();try{getWasmTableEntry(index)(a1,a2,a3)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_iii(index,a1,a2){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_ji(index,a1){var sp=stackSave();try{return getWasmTableEntry(index)(a1)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0);return 0n}}function invoke_jjj(index,a1,a2){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0);return 0n}}function invoke_jjjjjjj(index,a1,a2,a3,a4,a5,a6){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3,a4,a5,a6)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0);return 0n}}function invoke_jii(index,a1,a2){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0);return 0n}}function invoke_iiii(index,a1,a2,a3){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_iiij(index,a1,a2,a3){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_vjiii(index,a1,a2,a3,a4){var sp=stackSave();try{getWasmTableEntry(index)(a1,a2,a3,a4)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_iiiiijiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3,a4,a5,a6,a7,a8,a9,a10)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_viiiii(index,a1,a2,a3,a4,a5){var sp=stackSave();try{getWasmTableEntry(index)(a1,a2,a3,a4,a5)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_viiji(index,a1,a2,a3,a4){var sp=stackSave();try{getWasmTableEntry(index)(a1,a2,a3,a4)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_iiiiiiiiii(index,a1,a2,a3,a4,a5,a6,a7,a8,a9){var sp=stackSave();try{return getWasmTableEntry(index)(a1,a2,a3,a4,a5,a6,a7,a8,a9)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_vi(index,a1){var sp=stackSave();try{getWasmTableEntry(index)(a1)}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_v(index){var sp=stackSave();try{getWasmTableEntry(index)()}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function invoke_i(index){var sp=stackSave();try{return getWasmTableEntry(index)()}catch(e){stackRestore(sp);if(!(e instanceof EmscriptenEH))throw e;_setThrew(1,0)}}function run(){if(runDependencies>0){dependenciesFulfilled=run;return}preRun();if(runDependencies>0){dependenciesFulfilled=run;return}function doRun(){Module["calledRun"]=true;if(ABORT)return;initRuntime();readyPromiseResolve?.(Module);Module["onRuntimeInitialized"]?.();postRun()}if(Module["setStatus"]){Module["setStatus"]("Running...");setTimeout(()=>{setTimeout(()=>Module["setStatus"](""),1);doRun()},1)}else{doRun()}}var wasmExports;wasmExports=await (createWasm());run();if(runtimeInitialized){moduleRtn=Module}else{moduleRtn=new Promise((resolve,reject)=>{readyPromiseResolve=resolve;readyPromiseReject=reject})}
+;return moduleRtn}export default createLumbdaC;
diff --git a/www/playground/c/lumbda-c.loader.js b/www/playground/c/lumbda-c.loader.js
index 544c94a..5331311 100644
--- a/www/playground/c/lumbda-c.loader.js
+++ b/www/playground/c/lumbda-c.loader.js
@@ -1,28 +1,22 @@
 // wasm/c/lumbda-c.loader.js
-// C tier loader — Emscripten module wrapper.
+// C tier loader — Emscripten ES module factory.
 //
 // Exports createCTier({ baseURL }) -> Promise<{ evalLisp(src) -> Promise<string> }>.
-//
 // Output capture: Emscripten routes stdout/stderr through Module.print /
 // Module.printErr callbacks. We accumulate per-eval and return joined.
 
-async function _bootstrap(baseURL) {
-    // Pull in the emitted JS glue dynamically. Emscripten with EXPORT_ES6=0
-    // produces a UMD-ish factory script that sets globalThis.createLumbdaC.
-    if (typeof createLumbdaC === "undefined") {
-        await new Promise((resolve, reject) => {
-            const s = document.createElement("script");
-            s.src = baseURL + "lumbda-c.js";
-            s.onload = resolve;
-            s.onerror = () => reject(new Error("lumbda-c.js load failed"));
-            document.head.appendChild(s);
-        });
-    }
+async function _bootstrap() {
+    // Use import.meta.url so paths resolve relative to THIS loader file —
+    // not the caller. Works in both window and Worker contexts because both
+    // have a defined import.meta.url for ES modules.
+    const factoryURL = new URL("./lumbda-c.js", import.meta.url).href;
+    const wasmDir = new URL("./", import.meta.url).href;
+    const { default: createLumbdaC } = await import(/* @vite-ignore */ factoryURL);
 
     let outBuf = [];
     let errBuf = [];
     const module = await createLumbdaC({
-        locateFile: (p) => baseURL + p,
+        locateFile: (p) => wasmDir + p,
         print: (line) => outBuf.push(line),
         printErr: (line) => errBuf.push(line),
     });
@@ -52,14 +46,11 @@ async function _bootstrap(baseURL) {
     };
 }
 
-// Closure-encapsulated singleton: no module-level mutable state. Each
-// caller of createCTier() gets the same booted tier, but the cache lives
-// inside the closure rather than at module scope.
+// Closure-encapsulated singleton (see lumbda-c.loader.js for rationale).
 export const createCTier = (() => {
     let tier = null;
-    return async (opts) => {
-        const baseURL = (opts && opts.baseURL) || "./c/";
-        if (!tier) tier = await _bootstrap(baseURL);
+    return async () => {
+        if (!tier) tier = await _bootstrap();
         return tier;
     };
 })();
diff --git a/www/playground/demos/fib-ack.lsp b/www/playground/demos/fib-ack.lsp
index c8f4511..391dbce 100644
--- a/www/playground/demos/fib-ack.lsp
+++ b/www/playground/demos/fib-ack.lsp
@@ -10,8 +10,11 @@
         ((= n 0) (ack (- m 1) 1))
         (else    (ack (- m 1) (ack m (- n 1))))))
 
+; Demo deliberately stays small so Pyodide finishes in a few seconds.
+; (ack 3 4) is 125 but takes minutes via CPython-in-WASM tree-walker;
+; cut down to (ack 3 3) so every tier can run it.
+(display "fib(15) = ")  (print (fib 15))
 (display "fib(20) = ")  (print (fib 20))
-(display "fib(25) = ")  (print (fib 25))
 (display "ack(2,3) = ") (print (ack 2 3))
-(display "ack(3,4) = ") (print (ack 3 4))
+(display "ack(3,3) = ") (print (ack 3 3))
 (print "done")
diff --git a/www/playground/fonts/chunkfive/chunkfive-regular-webfont.woff b/www/playground/fonts/chunkfive/chunkfive-regular-webfont.woff
new file mode 100644
index 0000000..54ced00
Binary files /dev/null and b/www/playground/fonts/chunkfive/chunkfive-regular-webfont.woff differ
diff --git a/www/playground/fonts/chunkfive/chunkfive-regular-webfont.woff2 b/www/playground/fonts/chunkfive/chunkfive-regular-webfont.woff2
new file mode 100644
index 0000000..7cecf49
Binary files /dev/null and b/www/playground/fonts/chunkfive/chunkfive-regular-webfont.woff2 differ
diff --git a/www/playground/index.html b/www/playground/index.html
index a7c5f6d..648ccef 100644
--- a/www/playground/index.html
+++ b/www/playground/index.html
@@ -3,7 +3,7 @@
 <head>
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1">
-<title>Lumbda playground — Lisp in your browser, three tiers</title>
+<title>lumbda playground — lisp in your browser, three tiers</title>
 <link rel="stylesheet" href="style.css">
 <script type="importmap">
 {
@@ -25,31 +25,36 @@
 </head>
 <body>
 <header>
-  <h1>Lumbda <span class="sub">— Lisp/Scheme in your browser, three tiers in parallel</span></h1>
-  <p class="tag">
-    Same Lisp source. Three implementations compiled to WebAssembly:
-    <strong>Python</strong> (CPython via Pyodide hosting <code>lumbda.py</code>),
-    <strong>C</strong> (Emscripten build of the tree-walker + bytecode VM),
-    <strong>Asm</strong> (hand-written WebAssembly Text format — parallel to <code>asm/lumbda.s</code>).
+  <a class="brand" href="../" aria-label="lumbda home">
+    <img class="logo" src="lumbda-logo-green.png" alt="" aria-hidden="true">
+    <h1 aria-label="lumbda.">lumbda<span class="period" aria-hidden="true">.</span></h1>
+  </a>
+  <p class="tagline">lisp/scheme in your browser, three tiers in parallel</p>
+  <p class="lede">
+    same lisp source. three implementations compiled to webassembly:
+    <strong>python</strong> (cpython via pyodide hosting <code>lumbda.py</code>),
+    <strong>c</strong> (emscripten build of the tree-walker + bytecode vm),
+    <strong>asm</strong> (hand-written webassembly text format &mdash; parallel to <code>asm/lumbda.s</code>).
   </p>
 </header>
 
 <section class="controls">
   <fieldset class="program">
     <legend>demo program</legend>
-    <label><input type="radio" name="program" value="mandelbrot" checked> Mandelbrot</label>
-    <label><input type="radio" name="program" value="fib-ack"> Fib + Ackermann</label>
-    <label><input type="radio" name="program" value="sieve"> Sieve of Eratosthenes</label>
-    <label><input type="radio" name="program" value="self-interp"> Lisp-in-Lisp meta-eval</label>
+    <label><input type="radio" name="program" value="mandelbrot" checked> mandelbrot</label>
+    <label><input type="radio" name="program" value="fib-ack"> fib + ackermann</label>
+    <label><input type="radio" name="program" value="sieve"> sieve of eratosthenes</label>
+    <label><input type="radio" name="program" value="self-interp"> lisp-in-lisp meta-eval</label>
   </fieldset>
   <fieldset class="tier">
     <legend>tier</legend>
-    <label><input type="radio" name="tier" value="python"> Python (Pyodide)</label>
-    <label><input type="radio" name="tier" value="c" checked> C (emcc)</label>
-    <label><input type="radio" name="tier" value="asm"> Asm (WAT)</label>
-    <label><input type="radio" name="tier" value="all"> All three</label>
+    <label><input type="radio" name="tier" value="python"> python (pyodide)</label>
+    <label><input type="radio" name="tier" value="c" checked> c (emcc)</label>
+    <label><input type="radio" name="tier" value="asm"> asm (wat)</label>
+    <label><input type="radio" name="tier" value="all"> all three</label>
   </fieldset>
-  <button id="run">Run</button>
+  <button id="run" class="primary">run</button>
+  <button id="cancel" class="secondary">cancel</button>
   <span id="status" class="status"></span>
 </section>
 
@@ -66,11 +71,11 @@
 
 <footer>
   <p>
-    <strong>Asm tier note:</strong> the WAT implementation ships a minimal Lisp
-    subset (special forms, arithmetic, list ops, recursion) — enough for the
-    four demos above. Symbol lookup is linear; would be MOAD-0001 at scale,
-    documented in <code>asm/lumbda.wat</code>. See
-    <a href="https://lumbda.com">lumbda.com</a>.
+    <strong>asm tier note:</strong> the wat implementation ships a minimal lisp
+    subset (special forms, arithmetic, list ops, recursion) &mdash; enough for the
+    four demos above. symbol lookup is linear; would be moad-0001 at scale,
+    documented in <code>asm/lumbda.wat</code>.
+    see <a href="../">lumbda.</a>
   </p>
 </footer>
 
diff --git a/www/playground/lumbda-logo-green.png b/www/playground/lumbda-logo-green.png
new file mode 100644
index 0000000..f7c1df3
Binary files /dev/null and b/www/playground/lumbda-logo-green.png differ
diff --git a/www/playground/python/lumbda-py.js b/www/playground/python/lumbda-py.js
index 95c8011..d31accd 100644
--- a/www/playground/python/lumbda-py.js
+++ b/www/playground/python/lumbda-py.js
@@ -1,35 +1,27 @@
 // wasm/python/lumbda-py.js
 // Python tier loader — Pyodide (CPython-in-WASM) hosting lumbda.py.
 //
+// ES module form so it works in both window and Web Worker contexts.
 // Exports createPythonTier() -> Promise<{ evalLisp(src) -> Promise<string> }>.
-// Output is whatever the program printed (via display/print/write) plus the
-// final value's printed form if non-void.
 
 const PYODIDE_VERSION = "0.27.2";
 const PYODIDE_INDEX_URL = `https://cdn.jsdelivr.net/pyodide/v${PYODIDE_VERSION}/full/`;
 
-async function _bootstrap(baseURL) {
-    // Load Pyodide loader script (sets globalThis.loadPyodide).
-    if (typeof loadPyodide === "undefined") {
-        await new Promise((resolve, reject) => {
-            const s = document.createElement("script");
-            s.src = PYODIDE_INDEX_URL + "pyodide.js";
-            s.onload = resolve;
-            s.onerror = () => reject(new Error("pyodide.js load failed"));
-            document.head.appendChild(s);
-        });
-    }
-
+async function _bootstrap() {
+    // Dynamic ES-module import works in both window and Worker (module type)
+    // contexts. The CDN ships pyodide.mjs alongside pyodide.js.
+    const { loadPyodide } = await import(PYODIDE_INDEX_URL + "pyodide.mjs");
     const pyodide = await loadPyodide({ indexURL: PYODIDE_INDEX_URL });
 
-    // Pull lumbda.py + stdlib.lsp into Pyodide's virtual FS.
-    const lumbdaSrc = await (await fetch(baseURL + "lumbda.py")).text();
-    const stdlibSrc = await (await fetch(baseURL + "stdlib.lsp")).text();
+    // Pull lumbda.py + stdlib.lsp into Pyodide's virtual FS. Paths resolve
+    // relative to THIS loader (under python/) for both window and Worker.
+    const pyURL = new URL("./lumbda.py", import.meta.url).href;
+    const stdlibURL = new URL("./stdlib.lsp", import.meta.url).href;
+    const lumbdaSrc = await (await fetch(pyURL)).text();
+    const stdlibSrc = await (await fetch(stdlibURL)).text();
     pyodide.FS.writeFile("/home/pyodide/lumbda.py", lumbdaSrc);
     pyodide.FS.writeFile("/home/pyodide/stdlib.lsp", stdlibSrc);
 
-    // Initialize the lumbda environment once. We swap sys.stdout to a StringIO
-    // buffer per eval to capture program output.
     await pyodide.runPythonAsync(`
 import sys, io
 sys.path.insert(0, "/home/pyodide")
@@ -61,10 +53,8 @@ def _lumbda_eval(src):
 
     return {
         async evalLisp(src) {
-            // Pass src in via globals to avoid escaping issues.
             pyodide.globals.set("_src_in", src);
-            const result = await pyodide.runPythonAsync("_lumbda_eval(_src_in)");
-            return result;
+            return await pyodide.runPythonAsync("_lumbda_eval(_src_in)");
         },
     };
 }
@@ -72,9 +62,8 @@ def _lumbda_eval(src):
 // Closure-encapsulated singleton (see lumbda-c.loader.js for rationale).
 export const createPythonTier = (() => {
     let tier = null;
-    return async (baseURL) => {
-        baseURL = baseURL || "./python/";
-        if (!tier) tier = await _bootstrap(baseURL);
+    return async () => {
+        if (!tier) tier = await _bootstrap();
         return tier;
     };
 })();
diff --git a/www/playground/runner.js b/www/playground/runner.js
index 5e2b2cf..1b52b7b 100644
--- a/www/playground/runner.js
+++ b/www/playground/runner.js
@@ -1,6 +1,7 @@
 // wasm/app/runner.js
-// Tier runner — wraps the three loaders, runs a Lisp source on selected
-// tiers, returns {tier, output, error, elapsed} for each.
+// Tier runner — wraps the three loaders. Exposes a per-tier API so the
+// SPA can iterate, time, and render a live elapsed-ms counter between
+// the eval start and finish.
 
 import { createPythonTier } from "./python/lumbda-py.js";
 import { createCTier } from "./c/lumbda-c.loader.js";
@@ -8,28 +9,17 @@ import { createAsmTier } from "./asm/lumbda-asm.loader.js";
 
 const cache = {};
 
-async function getTier(name, progress) {
+export async function getTier(name, onLoad) {
     if (cache[name]) return cache[name];
-    progress(`loading ${name} tier…`);
-    if (name === "python") cache[name] = await createPythonTier("./python/");
-    else if (name === "c") cache[name] = await createCTier({ baseURL: "./c/" });
-    else if (name === "asm") cache[name] = await createAsmTier({ baseURL: "./asm/" });
+    if (onLoad) onLoad(name);
+    if (name === "python") cache[name] = await createPythonTier();
+    else if (name === "c") cache[name] = await createCTier();
+    else if (name === "asm") cache[name] = await createAsmTier();
     else throw new Error(`unknown tier: ${name}`);
     return cache[name];
 }
 
-export async function runOnTiers(tiers, src, progress) {
-    const results = [];
-    for (const t of tiers) {
-        const start = performance.now();
-        try {
-            const tier = await getTier(t, progress);
-            progress(`running on ${t}…`);
-            const output = await tier.evalLisp(src);
-            results.push({ tier: t, output, error: null, elapsed: performance.now() - start });
-        } catch (e) {
-            results.push({ tier: t, output: "", error: e.message || String(e), elapsed: performance.now() - start });
-        }
-    }
-    return results;
+export async function evalOnTier(name, src, onLoad) {
+    const tier = await getTier(name, onLoad);
+    return tier.evalLisp(src);
 }
diff --git a/www/playground/style.css b/www/playground/style.css
index 86a7027..88330d3 100644
--- a/www/playground/style.css
+++ b/www/playground/style.css
@@ -1,15 +1,43 @@
-/* Lumbda playground SPA — vanilla CSS, mono terminal aesthetic */
+/* lumbda playground — styled to match lumbda.com homepage.
+ * palette + typography mirror www/style.css.
+ */
+
+@font-face {
+  font-family: 'chunkfive';
+  src: url('fonts/chunkfive/chunkfive-regular-webfont.woff2') format('woff2'),
+       url('fonts/chunkfive/chunkfive-regular-webfont.woff')  format('woff');
+  font-weight: normal;
+  font-style: normal;
+  font-display: swap;
+}
 
 :root {
-  --bg: #0f1115;
-  --fg: #d6dadf;
-  --dim: #8b9099;
-  --accent: #6ee7b7;
-  --warn: #fbbf24;
-  --err: #fb7185;
-  --pane: #15181f;
-  --border: #262a33;
-  --mono: ui-monospace, "SF Mono", Menlo, Consolas, "Courier New", monospace;
+  --fg: #1a1a1a;
+  --bg: #fafaf7;
+  --muted: #666;
+  --accent: #227842;            /* single brand green — matches homepage */
+  --green: #227842;
+  --rule: #d4d4d0;
+  --code-bg: #f0ede4;
+  --pane-bg: #ffffff;
+  --busy: #b15a00;
+  --err: #b1262b;
+  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "DejaVu Sans Mono", monospace;
+}
+
+@media (prefers-color-scheme: dark) {
+  :root {
+    --fg: #e8e6e0;
+    --bg: #161613;
+    --muted: #9a9892;
+    --accent: #5ec07a;          /* lightened for contrast on dark bg */
+    --green: #5ec07a;
+    --rule: #3a3a36;
+    --code-bg: #22221f;
+    --pane-bg: #1c1c19;
+    --busy: #e0a050;
+    --err: #f06070;
+  }
 }
 
 * { box-sizing: border-box; }
@@ -19,118 +47,179 @@ html, body {
   background: var(--bg);
   color: var(--fg);
   font-family: var(--mono);
-  font-size: 13px;
-  height: 100%;
+  font-size: 14px;
+  line-height: 1.55;
+  min-height: 100%;
 }
 
+/* ─── Header ────────────────────────────────────────────────────── */
+
 header {
-  padding: 16px 24px 8px;
-  border-bottom: 1px solid var(--border);
+  border-bottom: 1px solid var(--rule);
+  padding: 1.5rem 1.5rem 1rem;
 }
+
+.brand {
+  display: inline-flex;
+  align-items: flex-end;
+  gap: 0.6rem;
+  text-decoration: none;
+  color: inherit;
+}
+.brand:hover .period { transform: translateY(-2px); }
+
+.brand .logo {
+  width: 3.2rem;
+  height: auto;
+  display: block;
+}
+
 header h1 {
-  margin: 0 0 4px;
-  font-size: 18px;
-  font-weight: 600;
-  color: var(--accent);
-}
-header h1 .sub {
-  color: var(--dim);
-  font-weight: 400;
-  font-size: 13px;
-}
-header .tag {
+  font-family: 'chunkfive', Georgia, serif;
+  font-size: 2.4rem;
   margin: 0;
-  color: var(--dim);
-  font-size: 12px;
-  line-height: 1.5;
+  letter-spacing: -0.01em;
+  line-height: 1;
+  font-weight: normal;
+}
+header h1 .period {
+  color: var(--green);
+  display: inline-block;
+  transition: transform 120ms ease;
+}
+
+header .tagline {
+  font-family: 'chunkfive', Georgia, serif;
+  color: var(--muted);
+  margin: 0.4rem 0 0.6rem;
+  font-size: 1rem;
+  letter-spacing: 0.01em;
+}
+
+header .lede {
+  margin: 0;
+  max-width: 70rem;
+  color: var(--fg);
+  font-size: 0.85rem;
+  line-height: 1.55;
+}
+header .lede strong {
+  color: var(--green);
+  font-weight: 600;
 }
 header code {
-  color: var(--warn);
-  font-size: 11px;
-}
-header strong {
-  color: var(--fg);
-  font-weight: 600;
+  background: var(--code-bg);
+  padding: 0 0.2em;
+  border-radius: 2px;
+  font-size: 0.9em;
 }
 
+/* ─── Controls ──────────────────────────────────────────────────── */
+
 .controls {
-  padding: 12px 24px;
-  border-bottom: 1px solid var(--border);
+  padding: 0.75rem 1.5rem;
+  border-bottom: 1px solid var(--rule);
   display: flex;
-  gap: 16px;
+  gap: 1rem;
   align-items: center;
   flex-wrap: wrap;
+  background: var(--bg);
 }
+
 .controls fieldset {
-  border: 1px solid var(--border);
-  border-radius: 4px;
-  padding: 4px 10px 6px;
+  border: 1px solid var(--rule);
+  border-radius: 3px;
+  padding: 3px 10px 5px;
   margin: 0;
+  background: var(--pane-bg);
 }
 .controls fieldset legend {
-  color: var(--dim);
-  font-size: 11px;
-  padding: 0 4px;
+  color: var(--muted);
+  font-size: 0.7rem;
+  padding: 0 0.4em;
   text-transform: uppercase;
-  letter-spacing: 0.06em;
+  letter-spacing: 0.08em;
 }
 .controls label {
-  margin-right: 10px;
+  margin-right: 0.7em;
   cursor: pointer;
   user-select: none;
+  font-size: 0.85em;
+}
+.controls label input {
+  margin-right: 0.3em;
+  accent-color: var(--green);
 }
-.controls label input { margin-right: 4px; }
 
 .controls button {
-  background: var(--accent);
-  color: #0a0c0f;
-  border: none;
-  padding: 6px 16px;
-  border-radius: 4px;
   font-family: var(--mono);
+  font-size: 0.85em;
   font-weight: 600;
-  font-size: 13px;
+  padding: 6px 16px;
+  border-radius: 3px;
   cursor: pointer;
+  border: 1px solid var(--green);
+}
+.controls button.primary {
+  background: var(--green);
+  color: var(--bg);
+}
+.controls button.primary:hover { filter: brightness(1.08); }
+.controls button.primary:disabled {
+  opacity: 0.4; cursor: wait;
+  filter: none;
+}
+.controls button.secondary {
+  background: transparent;
+  color: var(--green);
+}
+.controls button.secondary:hover {
+  background: var(--code-bg);
+}
+.controls button.secondary:disabled {
+  opacity: 0.35; cursor: default;
 }
-.controls button:hover { filter: brightness(1.1); }
-.controls button:disabled { opacity: 0.4; cursor: wait; }
 
 .controls .status {
-  color: var(--dim);
-  font-size: 12px;
+  color: var(--muted);
+  font-size: 0.8em;
   margin-left: auto;
 }
-.controls .status.busy { color: var(--warn); }
+.controls .status.busy { color: var(--busy); }
+.controls .status.warn { color: var(--busy); }
 .controls .status.err  { color: var(--err); }
-.controls .status.ok   { color: var(--accent); }
+.controls .status.ok   { color: var(--green); }
+
+/* ─── Panes ─────────────────────────────────────────────────────── */
 
 .panes {
   display: grid;
   grid-template-columns: 1fr 1fr;
   gap: 1px;
-  background: var(--border);
-  height: calc(100vh - 220px);
+  background: var(--rule);
+  height: calc(100vh - 260px);
   min-height: 360px;
 }
 .pane {
-  background: var(--pane);
-  padding: 8px 12px;
+  background: var(--pane-bg);
+  padding: 0.5rem 0.75rem 0.75rem;
   overflow: hidden;
   display: flex;
   flex-direction: column;
 }
 .pane h2 {
-  margin: 0 0 8px;
-  font-size: 11px;
+  margin: 0 0 0.4rem;
+  font-size: 0.7rem;
   font-weight: 500;
-  color: var(--dim);
+  color: var(--muted);
   text-transform: uppercase;
-  letter-spacing: 0.08em;
+  letter-spacing: 0.1em;
 }
 
 #editor {
   flex: 1;
   overflow: hidden;
+  border-radius: 2px;
 }
 .cm-editor { height: 100%; font-size: 13px; }
 .cm-editor.cm-focused { outline: none; }
@@ -139,45 +228,54 @@ header strong {
   flex: 1;
   white-space: pre;
   overflow: auto;
-  background: #0a0c10;
-  border: 1px solid var(--border);
-  padding: 8px 10px;
+  background: var(--code-bg);
+  border-radius: 2px;
+  padding: 0.6rem 0.8rem;
   font-size: 13px;
   line-height: 1.35;
-  border-radius: 2px;
-}
-#output .tier-block {
-  margin-bottom: 14px;
 }
+#output .tier-block { margin-bottom: 1rem; }
+#output .tier-block:last-child { margin-bottom: 0; }
 #output .tier-block h3 {
-  margin: 0 0 4px;
-  font-size: 11px;
-  color: var(--accent);
+  margin: 0 0 0.25rem;
+  font-size: 0.7rem;
+  color: var(--green);
   text-transform: uppercase;
-  letter-spacing: 0.08em;
+  letter-spacing: 0.1em;
   font-weight: 600;
 }
 #output .tier-block .time {
-  color: var(--dim);
-  font-size: 11px;
+  color: var(--muted);
+  font-size: 0.65rem;
   font-weight: 400;
+  letter-spacing: 0;
+  text-transform: none;
 }
 #output .tier-block pre {
   margin: 0;
   white-space: pre;
+  font-family: var(--mono);
 }
-#output .err { color: var(--err); }
+#output .err {
+  color: var(--err);
+}
+
+/* ─── Footer ────────────────────────────────────────────────────── */
 
 footer {
-  padding: 8px 24px;
-  border-top: 1px solid var(--border);
-  color: var(--dim);
-  font-size: 11px;
+  padding: 0.7rem 1.5rem;
+  border-top: 1px solid var(--rule);
+  color: var(--muted);
+  font-size: 0.75rem;
 }
 footer code {
-  color: var(--warn);
+  background: var(--code-bg);
+  padding: 0 0.2em;
+  border-radius: 2px;
 }
 footer a {
-  color: var(--accent);
+  color: var(--green);
   text-decoration: none;
 }
+footer a:hover { text-decoration: underline; }
+footer strong { color: var(--fg); }
diff --git a/www/playground/worker.mjs b/www/playground/worker.mjs
new file mode 100644
index 0000000..62047e6
--- /dev/null
+++ b/www/playground/worker.mjs
@@ -0,0 +1,19 @@
+// wasm/app/worker.mjs
+// Tier-evaluation Web Worker. Keeps the main thread responsive so the
+// live ms counter actually ticks AND so cancel works (main thread
+// terminates this worker via worker.terminate()).
+
+import { evalOnTier } from "./runner.js";
+
+self.onmessage = async (e) => {
+    const { kind, runId, tier, src } = e.data;
+    if (kind !== "eval") return;
+    try {
+        const output = await evalOnTier(tier, src, (loadingTier) => {
+            self.postMessage({ kind: "loading", runId, tier: loadingTier });
+        });
+        self.postMessage({ kind: "done", runId, output });
+    } catch (err) {
+        self.postMessage({ kind: "error", runId, message: err && err.message ? err.message : String(err) });
+    }
+};