diff --git a/scanner/assets/qrtool.wx.js b/scanner/assets/qrtool.wx.js
deleted file mode 100644
index 3fdca7c..0000000
--- a/scanner/assets/qrtool.wx.js
+++ /dev/null
@@ -1,5367 +0,0 @@
-var Module = typeof Module !== "undefined" ? Module : {};
-
-var window = {};
-
-var WA = WXWebAssembly;
-
-var WebAssembly = WA;
-
-WebAssembly.RuntimeErrror = Error;
-
-var performance = {
- now: Date.now
-};
-
-Module["instantiateWasm"] = ((info, receiveInstance) => {
- console.log("loading wasm...", info);
- WebAssembly.instantiate("assets/qrtool.wx.wasm.br", info).then(result => {
-  console.log("result:", result);
-  var inst = result["instance"];
-  receiveInstance(inst);
- });
-});
-
-var moduleOverrides = {};
-
-var key;
-
-for (key in Module) {
- if (Module.hasOwnProperty(key)) {
-  moduleOverrides[key] = Module[key];
- }
-}
-
-var arguments_ = [];
-
-var thisProgram = "./this.program";
-
-var quit_ = function(status, toThrow) {
- throw toThrow;
-};
-
-var ENVIRONMENT_IS_WEB = true;
-
-var ENVIRONMENT_IS_WORKER = false;
-
-var scriptDirectory = "";
-
-function locateFile(path) {
- if (Module["locateFile"]) {
-  return Module["locateFile"](path, scriptDirectory);
- }
- return scriptDirectory + path;
-}
-
-var read_, readAsync, readBinary, setWindowTitle;
-
-if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
- if (ENVIRONMENT_IS_WORKER) {
-  scriptDirectory = self.location.href;
- } else if (typeof document !== "undefined" && document.currentScript) {
-  scriptDirectory = document.currentScript.src;
- }
- if (scriptDirectory.indexOf("blob:") !== 0) {
-  scriptDirectory = scriptDirectory.substr(0, scriptDirectory.replace(/[?#].*/, "").lastIndexOf("/") + 1);
- } else {
-  scriptDirectory = "";
- }
- {
-  read_ = function(url) {
-   var xhr = new XMLHttpRequest();
-   xhr.open("GET", url, false);
-   xhr.send(null);
-   return xhr.responseText;
-  };
-  if (ENVIRONMENT_IS_WORKER) {
-   readBinary = function(url) {
-    var xhr = new XMLHttpRequest();
-    xhr.open("GET", url, false);
-    xhr.responseType = "arraybuffer";
-    xhr.send(null);
-    return new Uint8Array(xhr.response);
-   };
-  }
-  readAsync = function(url, onload, onerror) {
-   var xhr = new XMLHttpRequest();
-   xhr.open("GET", url, true);
-   xhr.responseType = "arraybuffer";
-   xhr.onload = function() {
-    if (xhr.status == 200 || xhr.status == 0 && xhr.response) {
-     onload(xhr.response);
-     return;
-    }
-    onerror();
-   };
-   xhr.onerror = onerror;
-   xhr.send(null);
-  };
- }
- setWindowTitle = function(title) {
-  document.title = title;
- };
-} else {}
-
-var out = Module["print"] || console.log.bind(console);
-
-var err = Module["printErr"] || console.warn.bind(console);
-
-for (key in moduleOverrides) {
- if (moduleOverrides.hasOwnProperty(key)) {
-  Module[key] = moduleOverrides[key];
- }
-}
-
-moduleOverrides = null;
-
-if (Module["arguments"]) arguments_ = Module["arguments"];
-
-if (Module["thisProgram"]) thisProgram = Module["thisProgram"];
-
-if (Module["quit"]) quit_ = Module["quit"];
-
-var tempRet0 = 0;
-
-var setTempRet0 = function(value) {
- tempRet0 = value;
-};
-
-var getTempRet0 = function() {
- return tempRet0;
-};
-
-var wasmBinary;
-
-if (Module["wasmBinary"]) wasmBinary = Module["wasmBinary"];
-
-var noExitRuntime = Module["noExitRuntime"] || true;
-
-if (typeof WebAssembly !== "object") {
- abort("no native wasm support detected");
-}
-
-var wasmMemory;
-
-var ABORT = false;
-
-var EXITSTATUS;
-
-function assert(condition, text) {
- if (!condition) {
-  abort("Assertion failed: " + text);
- }
-}
-
-function getCFunc(ident) {
- var func = Module["_" + ident];
- assert(func, "Cannot call unknown function " + ident + ", make sure it is exported");
- return func;
-}
-
-function ccall(ident, returnType, argTypes, args, opts) {
- var toC = {
-  "string": function(str) {
-   var ret = 0;
-   if (str !== null && str !== undefined && str !== 0) {
-    var len = (str.length << 2) + 1;
-    ret = stackAlloc(len);
-    stringToUTF8(str, ret, len);
-   }
-   return ret;
-  },
-  "array": function(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.apply(null, cArgs);
- function onDone(ret) {
-  if (stack !== 0) stackRestore(stack);
-  return convertReturnValue(ret);
- }
- ret = onDone(ret);
- return ret;
-}
-
-function cwrap(ident, returnType, argTypes, opts) {
- argTypes = argTypes || [];
- var numericArgs = argTypes.every(function(type) {
-  return type === "number";
- });
- var numericRet = returnType !== "string";
- if (numericRet && numericArgs && !opts) {
-  return getCFunc(ident);
- }
- return function() {
-  return ccall(ident, returnType, argTypes, arguments, opts);
- };
-}
-
-var UTF8Decoder = typeof TextDecoder !== "undefined" ? new TextDecoder("utf8") : undefined;
-
-function UTF8ArrayToString(heap, idx, maxBytesToRead) {
- var endIdx = idx + maxBytesToRead;
- var endPtr = idx;
- while (heap[endPtr] && !(endPtr >= endIdx)) ++endPtr;
- if (endPtr - idx > 16 && heap.subarray && UTF8Decoder) {
-  return UTF8Decoder.decode(heap.subarray(idx, endPtr));
- } else {
-  var str = "";
-  while (idx < endPtr) {
-   var u0 = heap[idx++];
-   if (!(u0 & 128)) {
-    str += String.fromCharCode(u0);
-    continue;
-   }
-   var u1 = heap[idx++] & 63;
-   if ((u0 & 224) == 192) {
-    str += String.fromCharCode((u0 & 31) << 6 | u1);
-    continue;
-   }
-   var u2 = heap[idx++] & 63;
-   if ((u0 & 240) == 224) {
-    u0 = (u0 & 15) << 12 | u1 << 6 | u2;
-   } else {
-    u0 = (u0 & 7) << 18 | u1 << 12 | u2 << 6 | heap[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;
-}
-
-function UTF8ToString(ptr, maxBytesToRead) {
- return ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead) : "";
-}
-
-function 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.charCodeAt(i);
-  if (u >= 55296 && u <= 57343) {
-   var u1 = str.charCodeAt(++i);
-   u = 65536 + ((u & 1023) << 10) | u1 & 1023;
-  }
-  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;
-  }
- }
- heap[outIdx] = 0;
- return outIdx - startIdx;
-}
-
-function stringToUTF8(str, outPtr, maxBytesToWrite) {
- return stringToUTF8Array(str, HEAPU8, outPtr, maxBytesToWrite);
-}
-
-function lengthBytesUTF8(str) {
- var len = 0;
- for (var i = 0; i < str.length; ++i) {
-  var u = str.charCodeAt(i);
-  if (u >= 55296 && u <= 57343) u = 65536 + ((u & 1023) << 10) | str.charCodeAt(++i) & 1023;
-  if (u <= 127) ++len; else if (u <= 2047) len += 2; else if (u <= 65535) len += 3; else len += 4;
- }
- return len;
-}
-
-function writeArrayToMemory(array, buffer) {
- HEAP8.set(array, buffer);
-}
-
-function writeAsciiToMemory(str, buffer, dontAddNull) {
- for (var i = 0; i < str.length; ++i) {
-  HEAP8[buffer++ >> 0] = str.charCodeAt(i);
- }
- if (!dontAddNull) HEAP8[buffer >> 0] = 0;
-}
-
-function alignUp(x, multiple) {
- if (x % multiple > 0) {
-  x += multiple - x % multiple;
- }
- return x;
-}
-
-var buffer, HEAP8, HEAPU8, HEAP16, HEAPU16, HEAP32, HEAPU32, HEAPF32, HEAPF64;
-
-function updateGlobalBufferAndViews(buf) {
- buffer = buf;
- Module["HEAP8"] = HEAP8 = new Int8Array(buf);
- Module["HEAP16"] = HEAP16 = new Int16Array(buf);
- Module["HEAP32"] = HEAP32 = new Int32Array(buf);
- Module["HEAPU8"] = HEAPU8 = new Uint8Array(buf);
- Module["HEAPU16"] = HEAPU16 = new Uint16Array(buf);
- Module["HEAPU32"] = HEAPU32 = new Uint32Array(buf);
- Module["HEAPF32"] = HEAPF32 = new Float32Array(buf);
- Module["HEAPF64"] = HEAPF64 = new Float64Array(buf);
-}
-
-var INITIAL_MEMORY = Module["INITIAL_MEMORY"] || 16777216;
-
-var wasmTable;
-
-var __ATPRERUN__ = [];
-
-var __ATINIT__ = [];
-
-var __ATPOSTRUN__ = [];
-
-var runtimeInitialized = false;
-
-function preRun() {
- if (Module["preRun"]) {
-  if (typeof Module["preRun"] == "function") Module["preRun"] = [ Module["preRun"] ];
-  while (Module["preRun"].length) {
-   addOnPreRun(Module["preRun"].shift());
-  }
- }
- callRuntimeCallbacks(__ATPRERUN__);
-}
-
-function initRuntime() {
- runtimeInitialized = true;
- if (!Module["noFSInit"] && !FS.init.initialized) FS.init();
- FS.ignorePermissions = false;
- TTY.init();
- callRuntimeCallbacks(__ATINIT__);
-}
-
-function postRun() {
- if (Module["postRun"]) {
-  if (typeof Module["postRun"] == "function") Module["postRun"] = [ Module["postRun"] ];
-  while (Module["postRun"].length) {
-   addOnPostRun(Module["postRun"].shift());
-  }
- }
- callRuntimeCallbacks(__ATPOSTRUN__);
-}
-
-function addOnPreRun(cb) {
- __ATPRERUN__.unshift(cb);
-}
-
-function addOnInit(cb) {
- __ATINIT__.unshift(cb);
-}
-
-function addOnPostRun(cb) {
- __ATPOSTRUN__.unshift(cb);
-}
-
-var runDependencies = 0;
-
-var runDependencyWatcher = null;
-
-var dependenciesFulfilled = null;
-
-function getUniqueRunDependency(id) {
- return id;
-}
-
-function addRunDependency(id) {
- runDependencies++;
- if (Module["monitorRunDependencies"]) {
-  Module["monitorRunDependencies"](runDependencies);
- }
-}
-
-function removeRunDependency(id) {
- runDependencies--;
- if (Module["monitorRunDependencies"]) {
-  Module["monitorRunDependencies"](runDependencies);
- }
- if (runDependencies == 0) {
-  if (runDependencyWatcher !== null) {
-   clearInterval(runDependencyWatcher);
-   runDependencyWatcher = null;
-  }
-  if (dependenciesFulfilled) {
-   var callback = dependenciesFulfilled;
-   dependenciesFulfilled = null;
-   callback();
-  }
- }
-}
-
-Module["preloadedImages"] = {};
-
-Module["preloadedAudios"] = {};
-
-function abort(what) {
- {
-  if (Module["onAbort"]) {
-   Module["onAbort"](what);
-  }
- }
- what = "Aborted(" + what + ")";
- err(what);
- ABORT = true;
- EXITSTATUS = 1;
- what += ". Build with -s ASSERTIONS=1 for more info.";
- var e = new WebAssembly.RuntimeError(what);
- throw e;
-}
-
-var dataURIPrefix = "data:application/octet-stream;base64,";
-
-function isDataURI(filename) {
- return filename.startsWith(dataURIPrefix);
-}
-
-var wasmBinaryFile;
-
-wasmBinaryFile = "qrtool.wx.wasm";
-
-if (!isDataURI(wasmBinaryFile)) {
- wasmBinaryFile = locateFile(wasmBinaryFile);
-}
-
-function getBinary(file) {
- try {
-  if (file == wasmBinaryFile && wasmBinary) {
-   return new Uint8Array(wasmBinary);
-  }
-  if (readBinary) {
-   return readBinary(file);
-  } else {
-   throw "both async and sync fetching of the wasm failed";
-  }
- } catch (err) {
-  abort(err);
- }
-}
-
-function getBinaryPromise() {
- if (!wasmBinary && (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER)) {
-  if (typeof fetch === "function") {
-   return fetch(wasmBinaryFile, {
-    credentials: "same-origin"
-   }).then(function(response) {
-    if (!response["ok"]) {
-     throw "failed to load wasm binary file at '" + wasmBinaryFile + "'";
-    }
-    return response["arrayBuffer"]();
-   }).catch(function() {
-    return getBinary(wasmBinaryFile);
-   });
-  }
- }
- return Promise.resolve().then(function() {
-  return getBinary(wasmBinaryFile);
- });
-}
-
-function createWasm() {
- var info = {
-  "a": asmLibraryArg
- };
- function receiveInstance(instance, module) {
-  var exports = instance.exports;
-  Module["asm"] = exports;
-  wasmMemory = Module["asm"]["Kb"];
-  updateGlobalBufferAndViews(wasmMemory.buffer);
-  wasmTable = Module["asm"]["Nb"];
-  addOnInit(Module["asm"]["Lb"]);
-  removeRunDependency("wasm-instantiate");
- }
- addRunDependency("wasm-instantiate");
- function receiveInstantiationResult(result) {
-  receiveInstance(result["instance"]);
- }
- function instantiateArrayBuffer(receiver) {
-  return getBinaryPromise().then(function(binary) {
-   return WebAssembly.instantiate(binary, info);
-  }).then(function(instance) {
-   return instance;
-  }).then(receiver, function(reason) {
-   err("failed to asynchronously prepare wasm: " + reason);
-   abort(reason);
-  });
- }
- function instantiateAsync() {
-  if (!wasmBinary && typeof WebAssembly.instantiateStreaming === "function" && !isDataURI(wasmBinaryFile) && typeof fetch === "function") {
-   return fetch(wasmBinaryFile, {
-    credentials: "same-origin"
-   }).then(function(response) {
-    var result = WebAssembly.instantiateStreaming(response, info);
-    return result.then(receiveInstantiationResult, function(reason) {
-     err("wasm streaming compile failed: " + reason);
-     err("falling back to ArrayBuffer instantiation");
-     return instantiateArrayBuffer(receiveInstantiationResult);
-    });
-   });
-  } else {
-   return instantiateArrayBuffer(receiveInstantiationResult);
-  }
- }
- if (Module["instantiateWasm"]) {
-  try {
-   var exports = Module["instantiateWasm"](info, receiveInstance);
-   return exports;
-  } catch (e) {
-   err("Module.instantiateWasm callback failed with error: " + e);
-   return false;
-  }
- }
- instantiateAsync();
- return {};
-}
-
-var tempDouble;
-
-var tempI64;
-
-function callRuntimeCallbacks(callbacks) {
- while (callbacks.length > 0) {
-  var callback = callbacks.shift();
-  if (typeof callback == "function") {
-   callback(Module);
-   continue;
-  }
-  var func = callback.func;
-  if (typeof func === "number") {
-   if (callback.arg === undefined) {
-    getWasmTableEntry(func)();
-   } else {
-    getWasmTableEntry(func)(callback.arg);
-   }
-  } else {
-   func(callback.arg === undefined ? null : callback.arg);
-  }
- }
-}
-
-var wasmTableMirror = [];
-
-function getWasmTableEntry(funcPtr) {
- var func = wasmTableMirror[funcPtr];
- if (!func) {
-  if (funcPtr >= wasmTableMirror.length) wasmTableMirror.length = funcPtr + 1;
-  wasmTableMirror[funcPtr] = func = wasmTable.get(funcPtr);
- }
- return func;
-}
-
-function ___cxa_allocate_exception(size) {
- return _malloc(size + 16) + 16;
-}
-
-function ExceptionInfo(excPtr) {
- this.excPtr = excPtr;
- this.ptr = excPtr - 16;
- this.set_type = function(type) {
-  HEAP32[this.ptr + 4 >> 2] = type;
- };
- this.get_type = function() {
-  return HEAP32[this.ptr + 4 >> 2];
- };
- this.set_destructor = function(destructor) {
-  HEAP32[this.ptr + 8 >> 2] = destructor;
- };
- this.get_destructor = function() {
-  return HEAP32[this.ptr + 8 >> 2];
- };
- this.set_refcount = function(refcount) {
-  HEAP32[this.ptr >> 2] = refcount;
- };
- this.set_caught = function(caught) {
-  caught = caught ? 1 : 0;
-  HEAP8[this.ptr + 12 >> 0] = caught;
- };
- this.get_caught = function() {
-  return HEAP8[this.ptr + 12 >> 0] != 0;
- };
- this.set_rethrown = function(rethrown) {
-  rethrown = rethrown ? 1 : 0;
-  HEAP8[this.ptr + 13 >> 0] = rethrown;
- };
- this.get_rethrown = function() {
-  return HEAP8[this.ptr + 13 >> 0] != 0;
- };
- this.init = function(type, destructor) {
-  this.set_type(type);
-  this.set_destructor(destructor);
-  this.set_refcount(0);
-  this.set_caught(false);
-  this.set_rethrown(false);
- };
- this.add_ref = function() {
-  var value = HEAP32[this.ptr >> 2];
-  HEAP32[this.ptr >> 2] = value + 1;
- };
- this.release_ref = function() {
-  var prev = HEAP32[this.ptr >> 2];
-  HEAP32[this.ptr >> 2] = prev - 1;
-  return prev === 1;
- };
-}
-
-function CatchInfo(ptr) {
- this.free = function() {
-  _free(this.ptr);
-  this.ptr = 0;
- };
- this.set_base_ptr = function(basePtr) {
-  HEAP32[this.ptr >> 2] = basePtr;
- };
- this.get_base_ptr = function() {
-  return HEAP32[this.ptr >> 2];
- };
- this.set_adjusted_ptr = function(adjustedPtr) {
-  HEAP32[this.ptr + 4 >> 2] = adjustedPtr;
- };
- this.get_adjusted_ptr_addr = function() {
-  return this.ptr + 4;
- };
- this.get_adjusted_ptr = function() {
-  return HEAP32[this.ptr + 4 >> 2];
- };
- this.get_exception_ptr = function() {
-  var isPointer = ___cxa_is_pointer_type(this.get_exception_info().get_type());
-  if (isPointer) {
-   return HEAP32[this.get_base_ptr() >> 2];
-  }
-  var adjusted = this.get_adjusted_ptr();
-  if (adjusted !== 0) return adjusted;
-  return this.get_base_ptr();
- };
- this.get_exception_info = function() {
-  return new ExceptionInfo(this.get_base_ptr());
- };
- if (ptr === undefined) {
-  this.ptr = _malloc(8);
-  this.set_adjusted_ptr(0);
- } else {
-  this.ptr = ptr;
- }
-}
-
-var exceptionCaught = [];
-
-function exception_addRef(info) {
- info.add_ref();
-}
-
-var uncaughtExceptionCount = 0;
-
-function ___cxa_begin_catch(ptr) {
- var catchInfo = new CatchInfo(ptr);
- var info = catchInfo.get_exception_info();
- if (!info.get_caught()) {
-  info.set_caught(true);
-  uncaughtExceptionCount--;
- }
- info.set_rethrown(false);
- exceptionCaught.push(catchInfo);
- exception_addRef(info);
- return catchInfo.get_exception_ptr();
-}
-
-function ___cxa_current_primary_exception() {
- if (!exceptionCaught.length) {
-  return 0;
- }
- var catchInfo = exceptionCaught[exceptionCaught.length - 1];
- exception_addRef(catchInfo.get_exception_info());
- return catchInfo.get_base_ptr();
-}
-
-function ___cxa_free_exception(ptr) {
- return _free(new ExceptionInfo(ptr).ptr);
-}
-
-function exception_decRef(info) {
- if (info.release_ref() && !info.get_rethrown()) {
-  var destructor = info.get_destructor();
-  if (destructor) {
-   getWasmTableEntry(destructor)(info.excPtr);
-  }
-  ___cxa_free_exception(info.excPtr);
- }
-}
-
-function ___cxa_decrement_exception_refcount(ptr) {
- if (!ptr) return;
- exception_decRef(new ExceptionInfo(ptr));
-}
-
-var exceptionLast = 0;
-
-function ___cxa_end_catch() {
- _setThrew(0);
- var catchInfo = exceptionCaught.pop();
- exception_decRef(catchInfo.get_exception_info());
- catchInfo.free();
- exceptionLast = 0;
-}
-
-function ___resumeException(catchInfoPtr) {
- var catchInfo = new CatchInfo(catchInfoPtr);
- var ptr = catchInfo.get_base_ptr();
- if (!exceptionLast) {
-  exceptionLast = ptr;
- }
- catchInfo.free();
- throw ptr;
-}
-
-function ___cxa_find_matching_catch_2() {
- var thrown = exceptionLast;
- if (!thrown) {
-  setTempRet0(0);
-  return 0 | 0;
- }
- var info = new ExceptionInfo(thrown);
- var thrownType = info.get_type();
- var catchInfo = new CatchInfo();
- catchInfo.set_base_ptr(thrown);
- catchInfo.set_adjusted_ptr(thrown);
- if (!thrownType) {
-  setTempRet0(0);
-  return catchInfo.ptr | 0;
- }
- var typeArray = Array.prototype.slice.call(arguments);
- for (var i = 0; i < typeArray.length; i++) {
-  var caughtType = typeArray[i];
-  if (caughtType === 0 || caughtType === thrownType) {
-   break;
-  }
-  if (___cxa_can_catch(caughtType, thrownType, catchInfo.get_adjusted_ptr_addr())) {
-   setTempRet0(caughtType);
-   return catchInfo.ptr | 0;
-  }
- }
- setTempRet0(thrownType);
- return catchInfo.ptr | 0;
-}
-
-function ___cxa_find_matching_catch_3() {
- var thrown = exceptionLast;
- if (!thrown) {
-  setTempRet0(0);
-  return 0 | 0;
- }
- var info = new ExceptionInfo(thrown);
- var thrownType = info.get_type();
- var catchInfo = new CatchInfo();
- catchInfo.set_base_ptr(thrown);
- catchInfo.set_adjusted_ptr(thrown);
- if (!thrownType) {
-  setTempRet0(0);
-  return catchInfo.ptr | 0;
- }
- var typeArray = Array.prototype.slice.call(arguments);
- for (var i = 0; i < typeArray.length; i++) {
-  var caughtType = typeArray[i];
-  if (caughtType === 0 || caughtType === thrownType) {
-   break;
-  }
-  if (___cxa_can_catch(caughtType, thrownType, catchInfo.get_adjusted_ptr_addr())) {
-   setTempRet0(caughtType);
-   return catchInfo.ptr | 0;
-  }
- }
- setTempRet0(thrownType);
- return catchInfo.ptr | 0;
-}
-
-function ___cxa_find_matching_catch_4() {
- var thrown = exceptionLast;
- if (!thrown) {
-  setTempRet0(0);
-  return 0 | 0;
- }
- var info = new ExceptionInfo(thrown);
- var thrownType = info.get_type();
- var catchInfo = new CatchInfo();
- catchInfo.set_base_ptr(thrown);
- catchInfo.set_adjusted_ptr(thrown);
- if (!thrownType) {
-  setTempRet0(0);
-  return catchInfo.ptr | 0;
- }
- var typeArray = Array.prototype.slice.call(arguments);
- for (var i = 0; i < typeArray.length; i++) {
-  var caughtType = typeArray[i];
-  if (caughtType === 0 || caughtType === thrownType) {
-   break;
-  }
-  if (___cxa_can_catch(caughtType, thrownType, catchInfo.get_adjusted_ptr_addr())) {
-   setTempRet0(caughtType);
-   return catchInfo.ptr | 0;
-  }
- }
- setTempRet0(thrownType);
- return catchInfo.ptr | 0;
-}
-
-function ___cxa_increment_exception_refcount(ptr) {
- if (!ptr) return;
- exception_addRef(new ExceptionInfo(ptr));
-}
-
-function ___cxa_rethrow() {
- var catchInfo = exceptionCaught.pop();
- if (!catchInfo) {
-  abort("no exception to throw");
- }
- var info = catchInfo.get_exception_info();
- var ptr = catchInfo.get_base_ptr();
- if (!info.get_rethrown()) {
-  exceptionCaught.push(catchInfo);
-  info.set_rethrown(true);
-  info.set_caught(false);
-  uncaughtExceptionCount++;
- } else {
-  catchInfo.free();
- }
- exceptionLast = ptr;
- throw ptr;
-}
-
-function ___cxa_rethrow_primary_exception(ptr) {
- if (!ptr) return;
- var catchInfo = new CatchInfo();
- catchInfo.set_base_ptr(ptr);
- var info = catchInfo.get_exception_info();
- exceptionCaught.push(catchInfo);
- info.set_rethrown(true);
- ___cxa_rethrow();
-}
-
-function ___cxa_throw(ptr, type, destructor) {
- var info = new ExceptionInfo(ptr);
- info.init(type, destructor);
- exceptionLast = ptr;
- uncaughtExceptionCount++;
- throw ptr;
-}
-
-function ___cxa_uncaught_exceptions() {
- return uncaughtExceptionCount;
-}
-
-function setErrNo(value) {
- HEAP32[___errno_location() >> 2] = value;
- return value;
-}
-
-var PATH = {
- splitPath: function(filename) {
-  var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
-  return splitPathRe.exec(filename).slice(1);
- },
- normalizeArray: function(parts, allowAboveRoot) {
-  var up = 0;
-  for (var i = parts.length - 1; i >= 0; i--) {
-   var last = parts[i];
-   if (last === ".") {
-    parts.splice(i, 1);
-   } else if (last === "..") {
-    parts.splice(i, 1);
-    up++;
-   } else if (up) {
-    parts.splice(i, 1);
-    up--;
-   }
-  }
-  if (allowAboveRoot) {
-   for (;up; up--) {
-    parts.unshift("..");
-   }
-  }
-  return parts;
- },
- normalize: function(path) {
-  var isAbsolute = path.charAt(0) === "/", trailingSlash = path.substr(-1) === "/";
-  path = PATH.normalizeArray(path.split("/").filter(function(p) {
-   return !!p;
-  }), !isAbsolute).join("/");
-  if (!path && !isAbsolute) {
-   path = ".";
-  }
-  if (path && trailingSlash) {
-   path += "/";
-  }
-  return (isAbsolute ? "/" : "") + path;
- },
- dirname: function(path) {
-  var result = PATH.splitPath(path), root = result[0], dir = result[1];
-  if (!root && !dir) {
-   return ".";
-  }
-  if (dir) {
-   dir = dir.substr(0, dir.length - 1);
-  }
-  return root + dir;
- },
- basename: function(path) {
-  if (path === "/") return "/";
-  path = PATH.normalize(path);
-  path = path.replace(/\/$/, "");
-  var lastSlash = path.lastIndexOf("/");
-  if (lastSlash === -1) return path;
-  return path.substr(lastSlash + 1);
- },
- extname: function(path) {
-  return PATH.splitPath(path)[3];
- },
- join: function() {
-  var paths = Array.prototype.slice.call(arguments, 0);
-  return PATH.normalize(paths.join("/"));
- },
- join2: function(l, r) {
-  return PATH.normalize(l + "/" + r);
- }
-};
-
-function getRandomDevice() {
- if (typeof crypto === "object" && typeof crypto["getRandomValues"] === "function") {
-  var randomBuffer = new Uint8Array(1);
-  return function() {
-   crypto.getRandomValues(randomBuffer);
-   return randomBuffer[0];
-  };
- } else return function() {
-  abort("randomDevice");
- };
-}
-
-var PATH_FS = {
- resolve: function() {
-  var resolvedPath = "", resolvedAbsolute = false;
-  for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
-   var path = i >= 0 ? arguments[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.charAt(0) === "/";
-  }
-  resolvedPath = PATH.normalizeArray(resolvedPath.split("/").filter(function(p) {
-   return !!p;
-  }), !resolvedAbsolute).join("/");
-  return (resolvedAbsolute ? "/" : "") + resolvedPath || ".";
- },
- relative: function(from, to) {
-  from = PATH_FS.resolve(from).substr(1);
-  to = PATH_FS.resolve(to).substr(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 TTY = {
- ttys: [],
- init: function() {},
- shutdown: function() {},
- register: function(dev, ops) {
-  TTY.ttys[dev] = {
-   input: [],
-   output: [],
-   ops: ops
-  };
-  FS.registerDevice(dev, TTY.stream_ops);
- },
- stream_ops: {
-  open: function(stream) {
-   var tty = TTY.ttys[stream.node.rdev];
-   if (!tty) {
-    throw new FS.ErrnoError(43);
-   }
-   stream.tty = tty;
-   stream.seekable = false;
-  },
-  close: function(stream) {
-   stream.tty.ops.flush(stream.tty);
-  },
-  flush: function(stream) {
-   stream.tty.ops.flush(stream.tty);
-  },
-  read: function(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.timestamp = Date.now();
-   }
-   return bytesRead;
-  },
-  write: function(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.timestamp = Date.now();
-   }
-   return i;
-  }
- },
- default_tty_ops: {
-  get_char: function(tty) {
-   if (!tty.input.length) {
-    var result = null;
-    if (typeof window != "undefined" && typeof window.prompt == "function") {
-     result = window.prompt("Input: ");
-     if (result !== null) {
-      result += "\n";
-     }
-    } else if (typeof readline == "function") {
-     result = readline();
-     if (result !== null) {
-      result += "\n";
-     }
-    }
-    if (!result) {
-     return null;
-    }
-    tty.input = intArrayFromString(result, true);
-   }
-   return tty.input.shift();
-  },
-  put_char: function(tty, val) {
-   if (val === null || val === 10) {
-    out(UTF8ArrayToString(tty.output, 0));
-    tty.output = [];
-   } else {
-    if (val != 0) tty.output.push(val);
-   }
-  },
-  flush: function(tty) {
-   if (tty.output && tty.output.length > 0) {
-    out(UTF8ArrayToString(tty.output, 0));
-    tty.output = [];
-   }
-  }
- },
- default_tty1_ops: {
-  put_char: function(tty, val) {
-   if (val === null || val === 10) {
-    err(UTF8ArrayToString(tty.output, 0));
-    tty.output = [];
-   } else {
-    if (val != 0) tty.output.push(val);
-   }
-  },
-  flush: function(tty) {
-   if (tty.output && tty.output.length > 0) {
-    err(UTF8ArrayToString(tty.output, 0));
-    tty.output = [];
-   }
-  }
- }
-};
-
-function mmapAlloc(size) {
- abort();
-}
-
-var MEMFS = {
- ops_table: null,
- mount: function(mount) {
-  return MEMFS.createNode(null, "/", 16384 | 511, 0);
- },
- createNode: function(parent, name, mode, dev) {
-  if (FS.isBlkdev(mode) || FS.isFIFO(mode)) {
-   throw new FS.ErrnoError(63);
-  }
-  if (!MEMFS.ops_table) {
-   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,
-      allocate: MEMFS.stream_ops.allocate,
-      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 = null;
-  } 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.timestamp = Date.now();
-  if (parent) {
-   parent.contents[name] = node;
-   parent.timestamp = node.timestamp;
-  }
-  return node;
- },
- getFileDataAsTypedArray: function(node) {
-  if (!node.contents) return new Uint8Array(0);
-  if (node.contents.subarray) return node.contents.subarray(0, node.usedBytes);
-  return new Uint8Array(node.contents);
- },
- expandFileStorage: function(node, newCapacity) {
-  var prevCapacity = node.contents ? node.contents.length : 0;
-  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 != 0) newCapacity = Math.max(newCapacity, 256);
-  var oldContents = node.contents;
-  node.contents = new Uint8Array(newCapacity);
-  if (node.usedBytes > 0) node.contents.set(oldContents.subarray(0, node.usedBytes), 0);
- },
- resizeFileStorage: function(node, newSize) {
-  if (node.usedBytes == newSize) return;
-  if (newSize == 0) {
-   node.contents = null;
-   node.usedBytes = 0;
-  } else {
-   var oldContents = node.contents;
-   node.contents = new Uint8Array(newSize);
-   if (oldContents) {
-    node.contents.set(oldContents.subarray(0, Math.min(newSize, node.usedBytes)));
-   }
-   node.usedBytes = newSize;
-  }
- },
- node_ops: {
-  getattr: function(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.timestamp);
-   attr.mtime = new Date(node.timestamp);
-   attr.ctime = new Date(node.timestamp);
-   attr.blksize = 4096;
-   attr.blocks = Math.ceil(attr.size / attr.blksize);
-   return attr;
-  },
-  setattr: function(node, attr) {
-   if (attr.mode !== undefined) {
-    node.mode = attr.mode;
-   }
-   if (attr.timestamp !== undefined) {
-    node.timestamp = attr.timestamp;
-   }
-   if (attr.size !== undefined) {
-    MEMFS.resizeFileStorage(node, attr.size);
-   }
-  },
-  lookup: function(parent, name) {
-   throw FS.genericErrors[44];
-  },
-  mknod: function(parent, name, mode, dev) {
-   return MEMFS.createNode(parent, name, mode, dev);
-  },
-  rename: function(old_node, new_dir, new_name) {
-   if (FS.isDir(old_node.mode)) {
-    var new_node;
-    try {
-     new_node = FS.lookupNode(new_dir, new_name);
-    } catch (e) {}
-    if (new_node) {
-     for (var i in new_node.contents) {
-      throw new FS.ErrnoError(55);
-     }
-    }
-   }
-   delete old_node.parent.contents[old_node.name];
-   old_node.parent.timestamp = Date.now();
-   old_node.name = new_name;
-   new_dir.contents[new_name] = old_node;
-   new_dir.timestamp = old_node.parent.timestamp;
-   old_node.parent = new_dir;
-  },
-  unlink: function(parent, name) {
-   delete parent.contents[name];
-   parent.timestamp = Date.now();
-  },
-  rmdir: function(parent, name) {
-   var node = FS.lookupNode(parent, name);
-   for (var i in node.contents) {
-    throw new FS.ErrnoError(55);
-   }
-   delete parent.contents[name];
-   parent.timestamp = Date.now();
-  },
-  readdir: function(node) {
-   var entries = [ ".", ".." ];
-   for (var key in node.contents) {
-    if (!node.contents.hasOwnProperty(key)) {
-     continue;
-    }
-    entries.push(key);
-   }
-   return entries;
-  },
-  symlink: function(parent, newname, oldpath) {
-   var node = MEMFS.createNode(parent, newname, 511 | 40960, 0);
-   node.link = oldpath;
-   return node;
-  },
-  readlink: function(node) {
-   if (!FS.isLink(node.mode)) {
-    throw new FS.ErrnoError(28);
-   }
-   return node.link;
-  }
- },
- stream_ops: {
-  read: function(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);
-   if (size > 8 && contents.subarray) {
-    buffer.set(contents.subarray(position, position + size), offset);
-   } else {
-    for (var i = 0; i < size; i++) buffer[offset + i] = contents[position + i];
-   }
-   return size;
-  },
-  write: function(stream, buffer, offset, length, position, canOwn) {
-   if (buffer.buffer === HEAP8.buffer) {
-    canOwn = false;
-   }
-   if (!length) return 0;
-   var node = stream.node;
-   node.timestamp = Date.now();
-   if (buffer.subarray && (!node.contents || node.contents.subarray)) {
-    if (canOwn) {
-     node.contents = buffer.subarray(offset, offset + length);
-     node.usedBytes = length;
-     return length;
-    } else if (node.usedBytes === 0 && position === 0) {
-     node.contents = buffer.slice(offset, offset + length);
-     node.usedBytes = length;
-     return length;
-    } else if (position + length <= node.usedBytes) {
-     node.contents.set(buffer.subarray(offset, offset + length), position);
-     return length;
-    }
-   }
-   MEMFS.expandFileStorage(node, position + length);
-   if (node.contents.subarray && buffer.subarray) {
-    node.contents.set(buffer.subarray(offset, offset + length), position);
-   } else {
-    for (var i = 0; i < length; i++) {
-     node.contents[position + i] = buffer[offset + i];
-    }
-   }
-   node.usedBytes = Math.max(node.usedBytes, position + length);
-   return length;
-  },
-  llseek: function(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;
-  },
-  allocate: function(stream, offset, length) {
-   MEMFS.expandFileStorage(stream.node, offset + length);
-   stream.node.usedBytes = Math.max(stream.node.usedBytes, offset + length);
-  },
-  mmap: function(stream, address, length, position, prot, flags) {
-   if (address !== 0) {
-    throw new FS.ErrnoError(28);
-   }
-   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 === buffer) {
-    allocated = false;
-    ptr = contents.byteOffset;
-   } else {
-    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);
-     }
-    }
-    allocated = true;
-    ptr = mmapAlloc(length);
-    if (!ptr) {
-     throw new FS.ErrnoError(48);
-    }
-    HEAP8.set(contents, ptr);
-   }
-   return {
-    ptr: ptr,
-    allocated: allocated
-   };
-  },
-  msync: function(stream, buffer, offset, length, mmapFlags) {
-   if (!FS.isFile(stream.node.mode)) {
-    throw new FS.ErrnoError(43);
-   }
-   if (mmapFlags & 2) {
-    return 0;
-   }
-   var bytesWritten = MEMFS.stream_ops.write(stream, buffer, 0, length, offset, false);
-   return 0;
-  }
- }
-};
-
-function asyncLoad(url, onload, onerror, noRunDep) {
- var dep = !noRunDep ? getUniqueRunDependency("al " + url) : "";
- readAsync(url, function(arrayBuffer) {
-  assert(arrayBuffer, 'Loading data file "' + url + '" failed (no arrayBuffer).');
-  onload(new Uint8Array(arrayBuffer));
-  if (dep) removeRunDependency(dep);
- }, function(event) {
-  if (onerror) {
-   onerror();
-  } else {
-   throw 'Loading data file "' + url + '" failed.';
-  }
- });
- if (dep) addRunDependency(dep);
-}
-
-var FS = {
- root: null,
- mounts: [],
- devices: {},
- streams: [],
- nextInode: 1,
- nameTable: null,
- currentPath: "/",
- initialized: false,
- ignorePermissions: true,
- ErrnoError: null,
- genericErrors: {},
- filesystems: null,
- syncFSRequests: 0,
- lookupPath: function(path, opts) {
-  path = PATH_FS.resolve(FS.cwd(), path);
-  opts = opts || {};
-  if (!path) return {
-   path: "",
-   node: null
-  };
-  var defaults = {
-   follow_mount: true,
-   recurse_count: 0
-  };
-  for (var key in defaults) {
-   if (opts[key] === undefined) {
-    opts[key] = defaults[key];
-   }
-  }
-  if (opts.recurse_count > 8) {
-   throw new FS.ErrnoError(32);
-  }
-  var parts = PATH.normalizeArray(path.split("/").filter(function(p) {
-   return !!p;
-  }), false);
-  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;
-   }
-   current = FS.lookupNode(current, parts[i]);
-   current_path = PATH.join2(current_path, parts[i]);
-   if (FS.isMountpoint(current)) {
-    if (!islast || islast && opts.follow_mount) {
-     current = current.mounted.root;
-    }
-   }
-   if (!islast || opts.follow) {
-    var count = 0;
-    while (FS.isLink(current.mode)) {
-     var link = FS.readlink(current_path);
-     current_path = PATH_FS.resolve(PATH.dirname(current_path), link);
-     var lookup = FS.lookupPath(current_path, {
-      recurse_count: opts.recurse_count
-     });
-     current = lookup.node;
-     if (count++ > 40) {
-      throw new FS.ErrnoError(32);
-     }
-    }
-   }
-  }
-  return {
-   path: current_path,
-   node: current
-  };
- },
- getPath: function(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: function(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: function(node) {
-  var hash = FS.hashName(node.parent.id, node.name);
-  node.name_next = FS.nameTable[hash];
-  FS.nameTable[hash] = node;
- },
- hashRemoveNode: function(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: function(parent, name) {
-  var errCode = FS.mayLookup(parent);
-  if (errCode) {
-   throw new FS.ErrnoError(errCode, parent);
-  }
-  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: function(parent, name, mode, rdev) {
-  var node = new FS.FSNode(parent, name, mode, rdev);
-  FS.hashAddNode(node);
-  return node;
- },
- destroyNode: function(node) {
-  FS.hashRemoveNode(node);
- },
- isRoot: function(node) {
-  return node === node.parent;
- },
- isMountpoint: function(node) {
-  return !!node.mounted;
- },
- isFile: function(mode) {
-  return (mode & 61440) === 32768;
- },
- isDir: function(mode) {
-  return (mode & 61440) === 16384;
- },
- isLink: function(mode) {
-  return (mode & 61440) === 40960;
- },
- isChrdev: function(mode) {
-  return (mode & 61440) === 8192;
- },
- isBlkdev: function(mode) {
-  return (mode & 61440) === 24576;
- },
- isFIFO: function(mode) {
-  return (mode & 61440) === 4096;
- },
- isSocket: function(mode) {
-  return (mode & 49152) === 49152;
- },
- flagModes: {
-  "r": 0,
-  "r+": 2,
-  "w": 577,
-  "w+": 578,
-  "a": 1089,
-  "a+": 1090
- },
- modeStringToFlags: function(str) {
-  var flags = FS.flagModes[str];
-  if (typeof flags === "undefined") {
-   throw new Error("Unknown file open mode: " + str);
-  }
-  return flags;
- },
- flagsToPermissionString: function(flag) {
-  var perms = [ "r", "w", "rw" ][flag & 3];
-  if (flag & 512) {
-   perms += "w";
-  }
-  return perms;
- },
- nodePermissions: function(node, perms) {
-  if (FS.ignorePermissions) {
-   return 0;
-  }
-  if (perms.includes("r") && !(node.mode & 292)) {
-   return 2;
-  } else if (perms.includes("w") && !(node.mode & 146)) {
-   return 2;
-  } else if (perms.includes("x") && !(node.mode & 73)) {
-   return 2;
-  }
-  return 0;
- },
- mayLookup: function(dir) {
-  var errCode = FS.nodePermissions(dir, "x");
-  if (errCode) return errCode;
-  if (!dir.node_ops.lookup) return 2;
-  return 0;
- },
- mayCreate: function(dir, name) {
-  try {
-   var node = FS.lookupNode(dir, name);
-   return 20;
-  } catch (e) {}
-  return FS.nodePermissions(dir, "wx");
- },
- mayDelete: function(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: function(node, flags) {
-  if (!node) {
-   return 44;
-  }
-  if (FS.isLink(node.mode)) {
-   return 32;
-  } else if (FS.isDir(node.mode)) {
-   if (FS.flagsToPermissionString(flags) !== "r" || flags & 512) {
-    return 31;
-   }
-  }
-  return FS.nodePermissions(node, FS.flagsToPermissionString(flags));
- },
- MAX_OPEN_FDS: 4096,
- nextfd: function(fd_start, fd_end) {
-  fd_start = fd_start || 0;
-  fd_end = fd_end || FS.MAX_OPEN_FDS;
-  for (var fd = fd_start; fd <= fd_end; fd++) {
-   if (!FS.streams[fd]) {
-    return fd;
-   }
-  }
-  throw new FS.ErrnoError(33);
- },
- getStream: function(fd) {
-  return FS.streams[fd];
- },
- createStream: function(stream, fd_start, fd_end) {
-  if (!FS.FSStream) {
-   FS.FSStream = function() {};
-   FS.FSStream.prototype = {
-    object: {
-     get: function() {
-      return this.node;
-     },
-     set: function(val) {
-      this.node = val;
-     }
-    },
-    isRead: {
-     get: function() {
-      return (this.flags & 2097155) !== 1;
-     }
-    },
-    isWrite: {
-     get: function() {
-      return (this.flags & 2097155) !== 0;
-     }
-    },
-    isAppend: {
-     get: function() {
-      return this.flags & 1024;
-     }
-    }
-   };
-  }
-  var newStream = new FS.FSStream();
-  for (var p in stream) {
-   newStream[p] = stream[p];
-  }
-  stream = newStream;
-  var fd = FS.nextfd(fd_start, fd_end);
-  stream.fd = fd;
-  FS.streams[fd] = stream;
-  return stream;
- },
- closeStream: function(fd) {
-  FS.streams[fd] = null;
- },
- chrdev_stream_ops: {
-  open: function(stream) {
-   var device = FS.getDevice(stream.node.rdev);
-   stream.stream_ops = device.stream_ops;
-   if (stream.stream_ops.open) {
-    stream.stream_ops.open(stream);
-   }
-  },
-  llseek: function() {
-   throw new FS.ErrnoError(70);
-  }
- },
- major: function(dev) {
-  return dev >> 8;
- },
- minor: function(dev) {
-  return dev & 255;
- },
- makedev: function(ma, mi) {
-  return ma << 8 | mi;
- },
- registerDevice: function(dev, ops) {
-  FS.devices[dev] = {
-   stream_ops: ops
-  };
- },
- getDevice: function(dev) {
-  return FS.devices[dev];
- },
- getMounts: function(mount) {
-  var mounts = [];
-  var check = [ mount ];
-  while (check.length) {
-   var m = check.pop();
-   mounts.push(m);
-   check.push.apply(check, m.mounts);
-  }
-  return mounts;
- },
- syncfs: function(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);
-   }
-  }
-  mounts.forEach(function(mount) {
-   if (!mount.type.syncfs) {
-    return done(null);
-   }
-   mount.type.syncfs(mount, populate, done);
-  });
- },
- mount: function(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: type,
-   opts: opts,
-   mountpoint: 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: function(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);
-  Object.keys(FS.nameTable).forEach(function(hash) {
-   var current = FS.nameTable[hash];
-   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: function(parent, name) {
-  return parent.node_ops.lookup(parent, name);
- },
- mknod: function(path, mode, dev) {
-  var lookup = FS.lookupPath(path, {
-   parent: true
-  });
-  var parent = lookup.node;
-  var name = PATH.basename(path);
-  if (!name || name === "." || name === "..") {
-   throw new FS.ErrnoError(28);
-  }
-  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);
- },
- create: function(path, mode) {
-  mode = mode !== undefined ? mode : 438;
-  mode &= 4095;
-  mode |= 32768;
-  return FS.mknod(path, mode, 0);
- },
- mkdir: function(path, mode) {
-  mode = mode !== undefined ? mode : 511;
-  mode &= 511 | 512;
-  mode |= 16384;
-  return FS.mknod(path, mode, 0);
- },
- mkdirTree: function(path, mode) {
-  var dirs = path.split("/");
-  var d = "";
-  for (var i = 0; i < dirs.length; ++i) {
-   if (!dirs[i]) continue;
-   d += "/" + dirs[i];
-   try {
-    FS.mkdir(d, mode);
-   } catch (e) {
-    if (e.errno != 20) throw e;
-   }
-  }
- },
- mkdev: function(path, mode, dev) {
-  if (typeof dev === "undefined") {
-   dev = mode;
-   mode = 438;
-  }
-  mode |= 8192;
-  return FS.mknod(path, mode, dev);
- },
- symlink: function(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: function(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);
-  } catch (e) {
-   throw e;
-  } finally {
-   FS.hashAddNode(old_node);
-  }
- },
- rmdir: function(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: function(path) {
-  var lookup = FS.lookupPath(path, {
-   follow: true
-  });
-  var node = lookup.node;
-  if (!node.node_ops.readdir) {
-   throw new FS.ErrnoError(54);
-  }
-  return node.node_ops.readdir(node);
- },
- unlink: function(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, 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: function(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 PATH_FS.resolve(FS.getPath(link.parent), link.node_ops.readlink(link));
- },
- stat: function(path, dontFollow) {
-  var lookup = FS.lookupPath(path, {
-   follow: !dontFollow
-  });
-  var node = lookup.node;
-  if (!node) {
-   throw new FS.ErrnoError(44);
-  }
-  if (!node.node_ops.getattr) {
-   throw new FS.ErrnoError(63);
-  }
-  return node.node_ops.getattr(node);
- },
- lstat: function(path) {
-  return FS.stat(path, true);
- },
- chmod: function(path, mode, dontFollow) {
-  var node;
-  if (typeof path === "string") {
-   var lookup = FS.lookupPath(path, {
-    follow: !dontFollow
-   });
-   node = lookup.node;
-  } else {
-   node = path;
-  }
-  if (!node.node_ops.setattr) {
-   throw new FS.ErrnoError(63);
-  }
-  node.node_ops.setattr(node, {
-   mode: mode & 4095 | node.mode & ~4095,
-   timestamp: Date.now()
-  });
- },
- lchmod: function(path, mode) {
-  FS.chmod(path, mode, true);
- },
- fchmod: function(fd, mode) {
-  var stream = FS.getStream(fd);
-  if (!stream) {
-   throw new FS.ErrnoError(8);
-  }
-  FS.chmod(stream.node, mode);
- },
- chown: function(path, uid, gid, dontFollow) {
-  var node;
-  if (typeof path === "string") {
-   var lookup = FS.lookupPath(path, {
-    follow: !dontFollow
-   });
-   node = lookup.node;
-  } else {
-   node = path;
-  }
-  if (!node.node_ops.setattr) {
-   throw new FS.ErrnoError(63);
-  }
-  node.node_ops.setattr(node, {
-   timestamp: Date.now()
-  });
- },
- lchown: function(path, uid, gid) {
-  FS.chown(path, uid, gid, true);
- },
- fchown: function(fd, uid, gid) {
-  var stream = FS.getStream(fd);
-  if (!stream) {
-   throw new FS.ErrnoError(8);
-  }
-  FS.chown(stream.node, uid, gid);
- },
- truncate: function(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;
-  }
-  if (!node.node_ops.setattr) {
-   throw new FS.ErrnoError(63);
-  }
-  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);
-  }
-  node.node_ops.setattr(node, {
-   size: len,
-   timestamp: Date.now()
-  });
- },
- ftruncate: function(fd, len) {
-  var stream = FS.getStream(fd);
-  if (!stream) {
-   throw new FS.ErrnoError(8);
-  }
-  if ((stream.flags & 2097155) === 0) {
-   throw new FS.ErrnoError(28);
-  }
-  FS.truncate(stream.node, len);
- },
- utime: function(path, atime, mtime) {
-  var lookup = FS.lookupPath(path, {
-   follow: true
-  });
-  var node = lookup.node;
-  node.node_ops.setattr(node, {
-   timestamp: Math.max(atime, mtime)
-  });
- },
- open: function(path, flags, mode, fd_start, fd_end) {
-  if (path === "") {
-   throw new FS.ErrnoError(44);
-  }
-  flags = typeof flags === "string" ? FS.modeStringToFlags(flags) : flags;
-  mode = typeof mode === "undefined" ? 438 : mode;
-  if (flags & 64) {
-   mode = mode & 4095 | 32768;
-  } else {
-   mode = 0;
-  }
-  var node;
-  if (typeof path === "object") {
-   node = path;
-  } else {
-   path = PATH.normalize(path);
-   try {
-    var lookup = FS.lookupPath(path, {
-     follow: !(flags & 131072)
-    });
-    node = lookup.node;
-   } catch (e) {}
-  }
-  var created = false;
-  if (flags & 64) {
-   if (node) {
-    if (flags & 128) {
-     throw new FS.ErrnoError(20);
-    }
-   } else {
-    node = FS.mknod(path, mode, 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) {
-   FS.truncate(node, 0);
-  }
-  flags &= ~(128 | 512 | 131072);
-  var stream = FS.createStream({
-   node: node,
-   path: FS.getPath(node),
-   id: node.id,
-   flags: flags,
-   mode: node.mode,
-   seekable: true,
-   position: 0,
-   stream_ops: node.stream_ops,
-   node_ops: node.node_ops,
-   ungotten: [],
-   error: false
-  }, fd_start, fd_end);
-  if (stream.stream_ops.open) {
-   stream.stream_ops.open(stream);
-  }
-  if (Module["logReadFiles"] && !(flags & 1)) {
-   if (!FS.readFiles) FS.readFiles = {};
-   if (!(path in FS.readFiles)) {
-    FS.readFiles[path] = 1;
-   }
-  }
-  return stream;
- },
- close: function(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: function(stream) {
-  return stream.fd === null;
- },
- llseek: function(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: function(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: function(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;
- },
- allocate: function(stream, offset, length) {
-  if (FS.isClosed(stream)) {
-   throw new FS.ErrnoError(8);
-  }
-  if (offset < 0 || length <= 0) {
-   throw new FS.ErrnoError(28);
-  }
-  if ((stream.flags & 2097155) === 0) {
-   throw new FS.ErrnoError(8);
-  }
-  if (!FS.isFile(stream.node.mode) && !FS.isDir(stream.node.mode)) {
-   throw new FS.ErrnoError(43);
-  }
-  if (!stream.stream_ops.allocate) {
-   throw new FS.ErrnoError(138);
-  }
-  stream.stream_ops.allocate(stream, offset, length);
- },
- mmap: function(stream, address, 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);
-  }
-  return stream.stream_ops.mmap(stream, address, length, position, prot, flags);
- },
- msync: function(stream, buffer, offset, length, mmapFlags) {
-  if (!stream || !stream.stream_ops.msync) {
-   return 0;
-  }
-  return stream.stream_ops.msync(stream, buffer, offset, length, mmapFlags);
- },
- munmap: function(stream) {
-  return 0;
- },
- ioctl: function(stream, cmd, arg) {
-  if (!stream.stream_ops.ioctl) {
-   throw new FS.ErrnoError(59);
-  }
-  return stream.stream_ops.ioctl(stream, cmd, arg);
- },
- readFile: function(path, opts) {
-  opts = opts || {};
-  opts.flags = opts.flags || 0;
-  opts.encoding = opts.encoding || "binary";
-  if (opts.encoding !== "utf8" && opts.encoding !== "binary") {
-   throw new Error('Invalid encoding type "' + opts.encoding + '"');
-  }
-  var ret;
-  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") {
-   ret = UTF8ArrayToString(buf, 0);
-  } else if (opts.encoding === "binary") {
-   ret = buf;
-  }
-  FS.close(stream);
-  return ret;
- },
- writeFile: function(path, data, opts) {
-  opts = opts || {};
-  opts.flags = opts.flags || 577;
-  var stream = FS.open(path, opts.flags, opts.mode);
-  if (typeof data === "string") {
-   var buf = new Uint8Array(lengthBytesUTF8(data) + 1);
-   var actualNumBytes = stringToUTF8Array(data, buf, 0, buf.length);
-   FS.write(stream, buf, 0, actualNumBytes, undefined, opts.canOwn);
-  } else if (ArrayBuffer.isView(data)) {
-   FS.write(stream, data, 0, data.byteLength, undefined, opts.canOwn);
-  } else {
-   throw new Error("Unsupported data type");
-  }
-  FS.close(stream);
- },
- cwd: function() {
-  return FS.currentPath;
- },
- chdir: function(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: function() {
-  FS.mkdir("/tmp");
-  FS.mkdir("/home");
-  FS.mkdir("/home/web_user");
- },
- createDefaultDevices: function() {
-  FS.mkdir("/dev");
-  FS.registerDevice(FS.makedev(1, 3), {
-   read: function() {
-    return 0;
-   },
-   write: function(stream, buffer, offset, length, pos) {
-    return length;
-   }
-  });
-  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 random_device = getRandomDevice();
-  FS.createDevice("/dev", "random", random_device);
-  FS.createDevice("/dev", "urandom", random_device);
-  FS.mkdir("/dev/shm");
-  FS.mkdir("/dev/shm/tmp");
- },
- createSpecialDirectories: function() {
-  FS.mkdir("/proc");
-  var proc_self = FS.mkdir("/proc/self");
-  FS.mkdir("/proc/self/fd");
-  FS.mount({
-   mount: function() {
-    var node = FS.createNode(proc_self, "fd", 16384 | 511, 73);
-    node.node_ops = {
-     lookup: function(parent, name) {
-      var fd = +name;
-      var stream = FS.getStream(fd);
-      if (!stream) throw new FS.ErrnoError(8);
-      var ret = {
-       parent: null,
-       mount: {
-        mountpoint: "fake"
-       },
-       node_ops: {
-        readlink: function() {
-         return stream.path;
-        }
-       }
-      };
-      ret.parent = ret;
-      return ret;
-     }
-    };
-    return node;
-   }
-  }, {}, "/proc/self/fd");
- },
- createStandardStreams: function() {
-  if (Module["stdin"]) {
-   FS.createDevice("/dev", "stdin", Module["stdin"]);
-  } else {
-   FS.symlink("/dev/tty", "/dev/stdin");
-  }
-  if (Module["stdout"]) {
-   FS.createDevice("/dev", "stdout", null, Module["stdout"]);
-  } else {
-   FS.symlink("/dev/tty", "/dev/stdout");
-  }
-  if (Module["stderr"]) {
-   FS.createDevice("/dev", "stderr", null, Module["stderr"]);
-  } 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);
- },
- ensureErrnoError: function() {
-  if (FS.ErrnoError) return;
-  FS.ErrnoError = function ErrnoError(errno, node) {
-   this.node = node;
-   this.setErrno = function(errno) {
-    this.errno = errno;
-   };
-   this.setErrno(errno);
-   this.message = "FS error";
-  };
-  FS.ErrnoError.prototype = new Error();
-  FS.ErrnoError.prototype.constructor = FS.ErrnoError;
-  [ 44 ].forEach(function(code) {
-   FS.genericErrors[code] = new FS.ErrnoError(code);
-   FS.genericErrors[code].stack = "<generic error, no stack>";
-  });
- },
- staticInit: function() {
-  FS.ensureErrnoError();
-  FS.nameTable = new Array(4096);
-  FS.mount(MEMFS, {}, "/");
-  FS.createDefaultDirectories();
-  FS.createDefaultDevices();
-  FS.createSpecialDirectories();
-  FS.filesystems = {
-   "MEMFS": MEMFS
-  };
- },
- init: function(input, output, error) {
-  FS.init.initialized = true;
-  FS.ensureErrnoError();
-  Module["stdin"] = input || Module["stdin"];
-  Module["stdout"] = output || Module["stdout"];
-  Module["stderr"] = error || Module["stderr"];
-  FS.createStandardStreams();
- },
- quit: function() {
-  FS.init.initialized = false;
-  var fflush = Module["_fflush"];
-  if (fflush) fflush(0);
-  for (var i = 0; i < FS.streams.length; i++) {
-   var stream = FS.streams[i];
-   if (!stream) {
-    continue;
-   }
-   FS.close(stream);
-  }
- },
- getMode: function(canRead, canWrite) {
-  var mode = 0;
-  if (canRead) mode |= 292 | 73;
-  if (canWrite) mode |= 146;
-  return mode;
- },
- findObject: function(path, dontResolveLastLink) {
-  var ret = FS.analyzePath(path, dontResolveLastLink);
-  if (ret.exists) {
-   return ret.object;
-  } else {
-   return null;
-  }
- },
- analyzePath: function(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: function(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) {}
-   parent = current;
-  }
-  return current;
- },
- createFile: function(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: function(parent, name, data, canRead, canWrite, canOwn) {
-  var path = name ? PATH.join2(typeof parent === "string" ? parent : FS.getPath(parent), name) : parent;
-  var mode = FS.getMode(canRead, canWrite);
-  var node = FS.create(path, mode);
-  if (data) {
-   if (typeof data === "string") {
-    var arr = new Array(data.length);
-    for (var i = 0, len = data.length; i < len; ++i) arr[i] = data.charCodeAt(i);
-    data = arr;
-   }
-   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);
-  }
-  return node;
- },
- createDevice: function(parent, name, input, output) {
-  var path = PATH.join2(typeof parent === "string" ? parent : FS.getPath(parent), name);
-  var mode = FS.getMode(!!input, !!output);
-  if (!FS.createDevice.major) FS.createDevice.major = 64;
-  var dev = FS.makedev(FS.createDevice.major++, 0);
-  FS.registerDevice(dev, {
-   open: function(stream) {
-    stream.seekable = false;
-   },
-   close: function(stream) {
-    if (output && output.buffer && output.buffer.length) {
-     output(10);
-    }
-   },
-   read: function(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.timestamp = Date.now();
-    }
-    return bytesRead;
-   },
-   write: function(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.timestamp = Date.now();
-    }
-    return i;
-   }
-  });
-  return FS.mkdev(path, mode, dev);
- },
- forceLoadFile: function(obj) {
-  if (obj.isDevice || obj.isFolder || obj.link || obj.contents) return true;
-  if (typeof XMLHttpRequest !== "undefined") {
-   throw new Error("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 if (read_) {
-   try {
-    obj.contents = intArrayFromString(read_(obj.url), true);
-    obj.usedBytes = obj.contents.length;
-   } catch (e) {
-    throw new FS.ErrnoError(29);
-   }
-  } else {
-   throw new Error("Cannot load without read() or XMLHttpRequest.");
-  }
- },
- createLazyFile: function(parent, name, url, canRead, canWrite) {
-  function LazyUint8Array() {
-   this.lengthKnown = false;
-   this.chunks = [];
-  }
-  LazyUint8Array.prototype.get = function LazyUint8Array_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];
-  };
-  LazyUint8Array.prototype.setDataGetter = function LazyUint8Array_setDataGetter(getter) {
-   this.getter = getter;
-  };
-  LazyUint8Array.prototype.cacheLength = function LazyUint8Array_cacheLength() {
-   var xhr = new XMLHttpRequest();
-   xhr.open("HEAD", url, false);
-   xhr.send(null);
-   if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("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 = function(from, to) {
-    if (from > to) throw new Error("invalid range (" + from + ", " + to + ") or no bytes requested!");
-    if (to > datalength - 1) throw new Error("only " + datalength + " bytes available! programmer error!");
-    var xhr = new XMLHttpRequest();
-    xhr.open("GET", url, false);
-    if (datalength !== chunkSize) xhr.setRequestHeader("Range", "bytes=" + from + "-" + to);
-    if (typeof Uint8Array != "undefined") 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)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status);
-    if (xhr.response !== undefined) {
-     return new Uint8Array(xhr.response || []);
-    } else {
-     return intArrayFromString(xhr.responseText || "", true);
-    }
-   };
-   var lazyArray = this;
-   lazyArray.setDataGetter(function(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") throw new Error("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;
-  };
-  if (typeof XMLHttpRequest !== "undefined") {
-   if (!ENVIRONMENT_IS_WORKER) throw "Cannot do synchronous binary XHRs outside webworkers in modern browsers. Use --embed-file or --preload-file in emcc";
-   var lazyArray = new LazyUint8Array();
-   Object.defineProperties(lazyArray, {
-    length: {
-     get: function() {
-      if (!this.lengthKnown) {
-       this.cacheLength();
-      }
-      return this._length;
-     }
-    },
-    chunkSize: {
-     get: function() {
-      if (!this.lengthKnown) {
-       this.cacheLength();
-      }
-      return this._chunkSize;
-     }
-    }
-   });
-   var properties = {
-    isDevice: false,
-    contents: lazyArray
-   };
-  } else {
-   var properties = {
-    isDevice: false,
-    url: 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 = {};
-  var keys = Object.keys(node.stream_ops);
-  keys.forEach(function(key) {
-   var fn = node.stream_ops[key];
-   stream_ops[key] = function forceLoadLazyFile() {
-    FS.forceLoadFile(node);
-    return fn.apply(null, arguments);
-   };
-  });
-  stream_ops.read = function stream_ops_read(stream, buffer, offset, length, position) {
-   FS.forceLoadFile(node);
-   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;
-  };
-  node.stream_ops = stream_ops;
-  return node;
- },
- createPreloadedFile: function(parent, name, url, canRead, canWrite, onload, onerror, dontCreateFile, canOwn, preFinish) {
-  Browser.init();
-  var fullname = name ? PATH_FS.resolve(PATH.join2(parent, name)) : parent;
-  var dep = getUniqueRunDependency("cp " + fullname);
-  function processData(byteArray) {
-   function finish(byteArray) {
-    if (preFinish) preFinish();
-    if (!dontCreateFile) {
-     FS.createDataFile(parent, name, byteArray, canRead, canWrite, canOwn);
-    }
-    if (onload) onload();
-    removeRunDependency(dep);
-   }
-   var handled = false;
-   Module["preloadPlugins"].forEach(function(plugin) {
-    if (handled) return;
-    if (plugin["canHandle"](fullname)) {
-     plugin["handle"](byteArray, fullname, finish, function() {
-      if (onerror) onerror();
-      removeRunDependency(dep);
-     });
-     handled = true;
-    }
-   });
-   if (!handled) finish(byteArray);
-  }
-  addRunDependency(dep);
-  if (typeof url == "string") {
-   asyncLoad(url, function(byteArray) {
-    processData(byteArray);
-   }, onerror);
-  } else {
-   processData(url);
-  }
- },
- indexedDB: function() {
-  return window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
- },
- DB_NAME: function() {
-  return "EM_FS_" + window.location.pathname;
- },
- DB_VERSION: 20,
- DB_STORE_NAME: "FILE_DATA",
- saveFilesToDB: function(paths, onload, onerror) {
-  onload = onload || function() {};
-  onerror = onerror || function() {};
-  var indexedDB = FS.indexedDB();
-  try {
-   var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION);
-  } catch (e) {
-   return onerror(e);
-  }
-  openRequest.onupgradeneeded = function openRequest_onupgradeneeded() {
-   out("creating db");
-   var db = openRequest.result;
-   db.createObjectStore(FS.DB_STORE_NAME);
-  };
-  openRequest.onsuccess = function openRequest_onsuccess() {
-   var db = openRequest.result;
-   var transaction = db.transaction([ FS.DB_STORE_NAME ], "readwrite");
-   var files = transaction.objectStore(FS.DB_STORE_NAME);
-   var ok = 0, fail = 0, total = paths.length;
-   function finish() {
-    if (fail == 0) onload(); else onerror();
-   }
-   paths.forEach(function(path) {
-    var putRequest = files.put(FS.analyzePath(path).object.contents, path);
-    putRequest.onsuccess = function putRequest_onsuccess() {
-     ok++;
-     if (ok + fail == total) finish();
-    };
-    putRequest.onerror = function putRequest_onerror() {
-     fail++;
-     if (ok + fail == total) finish();
-    };
-   });
-   transaction.onerror = onerror;
-  };
-  openRequest.onerror = onerror;
- },
- loadFilesFromDB: function(paths, onload, onerror) {
-  onload = onload || function() {};
-  onerror = onerror || function() {};
-  var indexedDB = FS.indexedDB();
-  try {
-   var openRequest = indexedDB.open(FS.DB_NAME(), FS.DB_VERSION);
-  } catch (e) {
-   return onerror(e);
-  }
-  openRequest.onupgradeneeded = onerror;
-  openRequest.onsuccess = function openRequest_onsuccess() {
-   var db = openRequest.result;
-   try {
-    var transaction = db.transaction([ FS.DB_STORE_NAME ], "readonly");
-   } catch (e) {
-    onerror(e);
-    return;
-   }
-   var files = transaction.objectStore(FS.DB_STORE_NAME);
-   var ok = 0, fail = 0, total = paths.length;
-   function finish() {
-    if (fail == 0) onload(); else onerror();
-   }
-   paths.forEach(function(path) {
-    var getRequest = files.get(path);
-    getRequest.onsuccess = function getRequest_onsuccess() {
-     if (FS.analyzePath(path).exists) {
-      FS.unlink(path);
-     }
-     FS.createDataFile(PATH.dirname(path), PATH.basename(path), getRequest.result, true, true, true);
-     ok++;
-     if (ok + fail == total) finish();
-    };
-    getRequest.onerror = function getRequest_onerror() {
-     fail++;
-     if (ok + fail == total) finish();
-    };
-   });
-   transaction.onerror = onerror;
-  };
-  openRequest.onerror = onerror;
- }
-};
-
-var SYSCALLS = {
- mappings: {},
- DEFAULT_POLLMASK: 5,
- calculateAt: function(dirfd, path, allowEmpty) {
-  if (path[0] === "/") {
-   return path;
-  }
-  var dir;
-  if (dirfd === -100) {
-   dir = FS.cwd();
-  } else {
-   var dirstream = FS.getStream(dirfd);
-   if (!dirstream) throw new FS.ErrnoError(8);
-   dir = dirstream.path;
-  }
-  if (path.length == 0) {
-   if (!allowEmpty) {
-    throw new FS.ErrnoError(44);
-   }
-   return dir;
-  }
-  return PATH.join2(dir, path);
- },
- doStat: function(func, path, buf) {
-  try {
-   var stat = func(path);
-  } catch (e) {
-   if (e && e.node && PATH.normalize(path) !== PATH.normalize(FS.getPath(e.node))) {
-    return -54;
-   }
-   throw e;
-  }
-  HEAP32[buf >> 2] = stat.dev;
-  HEAP32[buf + 4 >> 2] = 0;
-  HEAP32[buf + 8 >> 2] = stat.ino;
-  HEAP32[buf + 12 >> 2] = stat.mode;
-  HEAP32[buf + 16 >> 2] = stat.nlink;
-  HEAP32[buf + 20 >> 2] = stat.uid;
-  HEAP32[buf + 24 >> 2] = stat.gid;
-  HEAP32[buf + 28 >> 2] = stat.rdev;
-  HEAP32[buf + 32 >> 2] = 0;
-  tempI64 = [ stat.size >>> 0, (tempDouble = stat.size, +Math.abs(tempDouble) >= 1 ? tempDouble > 0 ? (Math.min(+Math.floor(tempDouble / 4294967296), 4294967295) | 0) >>> 0 : ~~+Math.ceil((tempDouble - +(~~tempDouble >>> 0)) / 4294967296) >>> 0 : 0) ], 
-  HEAP32[buf + 40 >> 2] = tempI64[0], HEAP32[buf + 44 >> 2] = tempI64[1];
-  HEAP32[buf + 48 >> 2] = 4096;
-  HEAP32[buf + 52 >> 2] = stat.blocks;
-  HEAP32[buf + 56 >> 2] = stat.atime.getTime() / 1e3 | 0;
-  HEAP32[buf + 60 >> 2] = 0;
-  HEAP32[buf + 64 >> 2] = stat.mtime.getTime() / 1e3 | 0;
-  HEAP32[buf + 68 >> 2] = 0;
-  HEAP32[buf + 72 >> 2] = stat.ctime.getTime() / 1e3 | 0;
-  HEAP32[buf + 76 >> 2] = 0;
-  tempI64 = [ stat.ino >>> 0, (tempDouble = stat.ino, +Math.abs(tempDouble) >= 1 ? tempDouble > 0 ? (Math.min(+Math.floor(tempDouble / 4294967296), 4294967295) | 0) >>> 0 : ~~+Math.ceil((tempDouble - +(~~tempDouble >>> 0)) / 4294967296) >>> 0 : 0) ], 
-  HEAP32[buf + 80 >> 2] = tempI64[0], HEAP32[buf + 84 >> 2] = tempI64[1];
-  return 0;
- },
- doMsync: function(addr, stream, len, flags, offset) {
-  var buffer = HEAPU8.slice(addr, addr + len);
-  FS.msync(stream, buffer, offset, len, flags);
- },
- doMkdir: function(path, mode) {
-  path = PATH.normalize(path);
-  if (path[path.length - 1] === "/") path = path.substr(0, path.length - 1);
-  FS.mkdir(path, mode, 0);
-  return 0;
- },
- doMknod: function(path, mode, dev) {
-  switch (mode & 61440) {
-  case 32768:
-  case 8192:
-  case 24576:
-  case 4096:
-  case 49152:
-   break;
-
-  default:
-   return -28;
-  }
-  FS.mknod(path, mode, dev);
-  return 0;
- },
- doReadlink: function(path, buf, bufsize) {
-  if (bufsize <= 0) return -28;
-  var ret = FS.readlink(path);
-  var len = Math.min(bufsize, lengthBytesUTF8(ret));
-  var endChar = HEAP8[buf + len];
-  stringToUTF8(ret, buf, bufsize + 1);
-  HEAP8[buf + len] = endChar;
-  return len;
- },
- doAccess: function(path, amode) {
-  if (amode & ~7) {
-   return -28;
-  }
-  var node;
-  var lookup = FS.lookupPath(path, {
-   follow: true
-  });
-  node = lookup.node;
-  if (!node) {
-   return -44;
-  }
-  var perms = "";
-  if (amode & 4) perms += "r";
-  if (amode & 2) perms += "w";
-  if (amode & 1) perms += "x";
-  if (perms && FS.nodePermissions(node, perms)) {
-   return -2;
-  }
-  return 0;
- },
- doDup: function(path, flags, suggestFD) {
-  var suggest = FS.getStream(suggestFD);
-  if (suggest) FS.close(suggest);
-  return FS.open(path, flags, 0, suggestFD, suggestFD).fd;
- },
- doReadv: function(stream, iov, iovcnt, offset) {
-  var ret = 0;
-  for (var i = 0; i < iovcnt; i++) {
-   var ptr = HEAP32[iov + i * 8 >> 2];
-   var len = HEAP32[iov + (i * 8 + 4) >> 2];
-   var curr = FS.read(stream, HEAP8, ptr, len, offset);
-   if (curr < 0) return -1;
-   ret += curr;
-   if (curr < len) break;
-  }
-  return ret;
- },
- doWritev: function(stream, iov, iovcnt, offset) {
-  var ret = 0;
-  for (var i = 0; i < iovcnt; i++) {
-   var ptr = HEAP32[iov + i * 8 >> 2];
-   var len = HEAP32[iov + (i * 8 + 4) >> 2];
-   var curr = FS.write(stream, HEAP8, ptr, len, offset);
-   if (curr < 0) return -1;
-   ret += curr;
-  }
-  return ret;
- },
- varargs: undefined,
- get: function() {
-  SYSCALLS.varargs += 4;
-  var ret = HEAP32[SYSCALLS.varargs - 4 >> 2];
-  return ret;
- },
- getStr: function(ptr) {
-  var ret = UTF8ToString(ptr);
-  return ret;
- },
- getStreamFromFD: function(fd) {
-  var stream = FS.getStream(fd);
-  if (!stream) throw new FS.ErrnoError(8);
-  return stream;
- },
- get64: function(low, high) {
-  return low;
- }
-};
-
-function ___syscall_fcntl64(fd, cmd, varargs) {
- SYSCALLS.varargs = varargs;
- try {
-  var stream = SYSCALLS.getStreamFromFD(fd);
-  switch (cmd) {
-  case 0:
-   {
-    var arg = SYSCALLS.get();
-    if (arg < 0) {
-     return -28;
-    }
-    var newStream;
-    newStream = FS.open(stream.path, stream.flags, 0, arg);
-    return newStream.fd;
-   }
-
-  case 1:
-  case 2:
-   return 0;
-
-  case 3:
-   return stream.flags;
-
-  case 4:
-   {
-    var arg = SYSCALLS.get();
-    stream.flags |= arg;
-    return 0;
-   }
-
-  case 12:
-   {
-    var arg = SYSCALLS.get();
-    var offset = 0;
-    HEAP16[arg + offset >> 1] = 2;
-    return 0;
-   }
-
-  case 13:
-  case 14:
-   return 0;
-
-  case 16:
-  case 8:
-   return -28;
-
-  case 9:
-   setErrNo(28);
-   return -1;
-
-  default:
-   {
-    return -28;
-   }
-  }
- } catch (e) {
-  if (typeof FS === "undefined" || !(e instanceof FS.ErrnoError)) abort(e);
-  return -e.errno;
- }
-}
-
-function ___syscall_ioctl(fd, op, varargs) {
- SYSCALLS.varargs = varargs;
- try {
-  var stream = SYSCALLS.getStreamFromFD(fd);
-  switch (op) {
-  case 21509:
-  case 21505:
-   {
-    if (!stream.tty) return -59;
-    return 0;
-   }
-
-  case 21510:
-  case 21511:
-  case 21512:
-  case 21506:
-  case 21507:
-  case 21508:
-   {
-    if (!stream.tty) return -59;
-    return 0;
-   }
-
-  case 21519:
-   {
-    if (!stream.tty) return -59;
-    var argp = SYSCALLS.get();
-    HEAP32[argp >> 2] = 0;
-    return 0;
-   }
-
-  case 21520:
-   {
-    if (!stream.tty) return -59;
-    return -28;
-   }
-
-  case 21531:
-   {
-    var argp = SYSCALLS.get();
-    return FS.ioctl(stream, op, argp);
-   }
-
-  case 21523:
-   {
-    if (!stream.tty) return -59;
-    return 0;
-   }
-
-  case 21524:
-   {
-    if (!stream.tty) return -59;
-    return 0;
-   }
-
-  default:
-   abort("bad ioctl syscall " + op);
-  }
- } catch (e) {
-  if (typeof FS === "undefined" || !(e instanceof FS.ErrnoError)) abort(e);
-  return -e.errno;
- }
-}
-
-function ___syscall_open(path, flags, varargs) {
- SYSCALLS.varargs = varargs;
- try {
-  var pathname = SYSCALLS.getStr(path);
-  var mode = varargs ? SYSCALLS.get() : 0;
-  var stream = FS.open(pathname, flags, mode);
-  return stream.fd;
- } catch (e) {
-  if (typeof FS === "undefined" || !(e instanceof FS.ErrnoError)) abort(e);
-  return -e.errno;
- }
-}
-
-function _abort() {
- abort("");
-}
-
-var _emscripten_get_now;
-
-_emscripten_get_now = function() {
- return performance.now();
-};
-
-var _emscripten_get_now_is_monotonic = true;
-
-function _clock_gettime(clk_id, tp) {
- var now;
- if (clk_id === 0) {
-  now = Date.now();
- } else if ((clk_id === 1 || clk_id === 4) && _emscripten_get_now_is_monotonic) {
-  now = _emscripten_get_now();
- } else {
-  setErrNo(28);
-  return -1;
- }
- HEAP32[tp >> 2] = now / 1e3 | 0;
- HEAP32[tp + 4 >> 2] = now % 1e3 * 1e3 * 1e3 | 0;
- return 0;
-}
-
-function _emscripten_get_heap_max() {
- return 2147483648;
-}
-
-function _emscripten_memcpy_big(dest, src, num) {
- HEAPU8.copyWithin(dest, src, src + num);
-}
-
-function emscripten_realloc_buffer(size) {
- try {
-  wasmMemory.grow(size - buffer.byteLength + 65535 >>> 16);
-  updateGlobalBufferAndViews(wasmMemory.buffer);
-  return 1;
- } catch (e) {}
-}
-
-function _emscripten_resize_heap(requestedSize) {
- var oldSize = HEAPU8.length;
- requestedSize = requestedSize >>> 0;
- var maxHeapSize = 2147483648;
- 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, alignUp(Math.max(requestedSize, overGrownHeapSize), 65536));
-  var replacement = emscripten_realloc_buffer(newSize);
-  if (replacement) {
-   return true;
-  }
- }
- return false;
-}
-
-var ENV = {};
-
-function getExecutableName() {
- return thisProgram || "./this.program";
-}
-
-function getEnvStrings() {
- if (!getEnvStrings.strings) {
-  var lang = (typeof navigator === "object" && navigator.languages && navigator.languages[0] || "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;
-}
-
-function _environ_get(__environ, environ_buf) {
- var bufSize = 0;
- getEnvStrings().forEach(function(string, i) {
-  var ptr = environ_buf + bufSize;
-  HEAP32[__environ + i * 4 >> 2] = ptr;
-  writeAsciiToMemory(string, ptr);
-  bufSize += string.length + 1;
- });
- return 0;
-}
-
-function _environ_sizes_get(penviron_count, penviron_buf_size) {
- var strings = getEnvStrings();
- HEAP32[penviron_count >> 2] = strings.length;
- var bufSize = 0;
- strings.forEach(function(string) {
-  bufSize += string.length + 1;
- });
- HEAP32[penviron_buf_size >> 2] = bufSize;
- return 0;
-}
-
-function _fd_close(fd) {
- try {
-  var stream = SYSCALLS.getStreamFromFD(fd);
-  FS.close(stream);
-  return 0;
- } catch (e) {
-  if (typeof FS === "undefined" || !(e instanceof FS.ErrnoError)) abort(e);
-  return e.errno;
- }
-}
-
-function _fd_read(fd, iov, iovcnt, pnum) {
- try {
-  var stream = SYSCALLS.getStreamFromFD(fd);
-  var num = SYSCALLS.doReadv(stream, iov, iovcnt);
-  HEAP32[pnum >> 2] = num;
-  return 0;
- } catch (e) {
-  if (typeof FS === "undefined" || !(e instanceof FS.ErrnoError)) abort(e);
-  return e.errno;
- }
-}
-
-function _fd_seek(fd, offset_low, offset_high, whence, newOffset) {
- try {
-  var stream = SYSCALLS.getStreamFromFD(fd);
-  var HIGH_OFFSET = 4294967296;
-  var offset = offset_high * HIGH_OFFSET + (offset_low >>> 0);
-  var DOUBLE_LIMIT = 9007199254740992;
-  if (offset <= -DOUBLE_LIMIT || offset >= DOUBLE_LIMIT) {
-   return -61;
-  }
-  FS.llseek(stream, offset, whence);
-  tempI64 = [ stream.position >>> 0, (tempDouble = stream.position, +Math.abs(tempDouble) >= 1 ? tempDouble > 0 ? (Math.min(+Math.floor(tempDouble / 4294967296), 4294967295) | 0) >>> 0 : ~~+Math.ceil((tempDouble - +(~~tempDouble >>> 0)) / 4294967296) >>> 0 : 0) ], 
-  HEAP32[newOffset >> 2] = tempI64[0], HEAP32[newOffset + 4 >> 2] = tempI64[1];
-  if (stream.getdents && offset === 0 && whence === 0) stream.getdents = null;
-  return 0;
- } catch (e) {
-  if (typeof FS === "undefined" || !(e instanceof FS.ErrnoError)) abort(e);
-  return e.errno;
- }
-}
-
-function _fd_write(fd, iov, iovcnt, pnum) {
- try {
-  var stream = SYSCALLS.getStreamFromFD(fd);
-  var num = SYSCALLS.doWritev(stream, iov, iovcnt);
-  HEAP32[pnum >> 2] = num;
-  return 0;
- } catch (e) {
-  if (typeof FS === "undefined" || !(e instanceof FS.ErrnoError)) abort(e);
-  return e.errno;
- }
-}
-
-function _getTempRet0() {
- return getTempRet0();
-}
-
-function _llvm_eh_typeid_for(type) {
- return type;
-}
-
-function _setTempRet0(val) {
- setTempRet0(val);
-}
-
-function __isLeapYear(year) {
- return year % 4 === 0 && (year % 100 !== 0 || year % 400 === 0);
-}
-
-function __arraySum(array, index) {
- var sum = 0;
- for (var i = 0; i <= index; sum += array[i++]) {}
- return sum;
-}
-
-var __MONTH_DAYS_LEAP = [ 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 ];
-
-var __MONTH_DAYS_REGULAR = [ 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 ];
-
-function __addDays(date, days) {
- var newDate = new Date(date.getTime());
- while (days > 0) {
-  var leap = __isLeapYear(newDate.getFullYear());
-  var currentMonth = newDate.getMonth();
-  var daysInCurrentMonth = (leap ? __MONTH_DAYS_LEAP : __MONTH_DAYS_REGULAR)[currentMonth];
-  if (days > daysInCurrentMonth - newDate.getDate()) {
-   days -= daysInCurrentMonth - newDate.getDate() + 1;
-   newDate.setDate(1);
-   if (currentMonth < 11) {
-    newDate.setMonth(currentMonth + 1);
-   } else {
-    newDate.setMonth(0);
-    newDate.setFullYear(newDate.getFullYear() + 1);
-   }
-  } else {
-   newDate.setDate(newDate.getDate() + days);
-   return newDate;
-  }
- }
- return newDate;
-}
-
-function _strftime(s, maxsize, format, tm) {
- var tm_zone = HEAP32[tm + 40 >> 2];
- var date = {
-  tm_sec: HEAP32[tm >> 2],
-  tm_min: HEAP32[tm + 4 >> 2],
-  tm_hour: HEAP32[tm + 8 >> 2],
-  tm_mday: HEAP32[tm + 12 >> 2],
-  tm_mon: HEAP32[tm + 16 >> 2],
-  tm_year: HEAP32[tm + 20 >> 2],
-  tm_wday: HEAP32[tm + 24 >> 2],
-  tm_yday: HEAP32[tm + 28 >> 2],
-  tm_isdst: HEAP32[tm + 32 >> 2],
-  tm_gmtoff: HEAP32[tm + 36 >> 2],
-  tm_zone: tm_zone ? UTF8ToString(tm_zone) : ""
- };
- var pattern = UTF8ToString(format);
- var EXPANSION_RULES_1 = {
-  "%c": "%a %b %d %H:%M:%S %Y",
-  "%D": "%m/%d/%y",
-  "%F": "%Y-%m-%d",
-  "%h": "%b",
-  "%r": "%I:%M:%S %p",
-  "%R": "%H:%M",
-  "%T": "%H:%M:%S",
-  "%x": "%m/%d/%y",
-  "%X": "%H:%M:%S",
-  "%Ec": "%c",
-  "%EC": "%C",
-  "%Ex": "%m/%d/%y",
-  "%EX": "%H:%M:%S",
-  "%Ey": "%y",
-  "%EY": "%Y",
-  "%Od": "%d",
-  "%Oe": "%e",
-  "%OH": "%H",
-  "%OI": "%I",
-  "%Om": "%m",
-  "%OM": "%M",
-  "%OS": "%S",
-  "%Ou": "%u",
-  "%OU": "%U",
-  "%OV": "%V",
-  "%Ow": "%w",
-  "%OW": "%W",
-  "%Oy": "%y"
- };
- for (var rule in EXPANSION_RULES_1) {
-  pattern = pattern.replace(new RegExp(rule, "g"), EXPANSION_RULES_1[rule]);
- }
- var WEEKDAYS = [ "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday" ];
- var MONTHS = [ "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" ];
- function leadingSomething(value, digits, character) {
-  var str = typeof value === "number" ? value.toString() : value || "";
-  while (str.length < digits) {
-   str = character[0] + str;
-  }
-  return str;
- }
- function leadingNulls(value, digits) {
-  return leadingSomething(value, digits, "0");
- }
- function compareByDay(date1, date2) {
-  function sgn(value) {
-   return value < 0 ? -1 : value > 0 ? 1 : 0;
-  }
-  var compare;
-  if ((compare = sgn(date1.getFullYear() - date2.getFullYear())) === 0) {
-   if ((compare = sgn(date1.getMonth() - date2.getMonth())) === 0) {
-    compare = sgn(date1.getDate() - date2.getDate());
-   }
-  }
-  return compare;
- }
- function getFirstWeekStartDate(janFourth) {
-  switch (janFourth.getDay()) {
-  case 0:
-   return new Date(janFourth.getFullYear() - 1, 11, 29);
-
-  case 1:
-   return janFourth;
-
-  case 2:
-   return new Date(janFourth.getFullYear(), 0, 3);
-
-  case 3:
-   return new Date(janFourth.getFullYear(), 0, 2);
-
-  case 4:
-   return new Date(janFourth.getFullYear(), 0, 1);
-
-  case 5:
-   return new Date(janFourth.getFullYear() - 1, 11, 31);
-
-  case 6:
-   return new Date(janFourth.getFullYear() - 1, 11, 30);
-  }
- }
- function getWeekBasedYear(date) {
-  var thisDate = __addDays(new Date(date.tm_year + 1900, 0, 1), date.tm_yday);
-  var janFourthThisYear = new Date(thisDate.getFullYear(), 0, 4);
-  var janFourthNextYear = new Date(thisDate.getFullYear() + 1, 0, 4);
-  var firstWeekStartThisYear = getFirstWeekStartDate(janFourthThisYear);
-  var firstWeekStartNextYear = getFirstWeekStartDate(janFourthNextYear);
-  if (compareByDay(firstWeekStartThisYear, thisDate) <= 0) {
-   if (compareByDay(firstWeekStartNextYear, thisDate) <= 0) {
-    return thisDate.getFullYear() + 1;
-   } else {
-    return thisDate.getFullYear();
-   }
-  } else {
-   return thisDate.getFullYear() - 1;
-  }
- }
- var EXPANSION_RULES_2 = {
-  "%a": function(date) {
-   return WEEKDAYS[date.tm_wday].substring(0, 3);
-  },
-  "%A": function(date) {
-   return WEEKDAYS[date.tm_wday];
-  },
-  "%b": function(date) {
-   return MONTHS[date.tm_mon].substring(0, 3);
-  },
-  "%B": function(date) {
-   return MONTHS[date.tm_mon];
-  },
-  "%C": function(date) {
-   var year = date.tm_year + 1900;
-   return leadingNulls(year / 100 | 0, 2);
-  },
-  "%d": function(date) {
-   return leadingNulls(date.tm_mday, 2);
-  },
-  "%e": function(date) {
-   return leadingSomething(date.tm_mday, 2, " ");
-  },
-  "%g": function(date) {
-   return getWeekBasedYear(date).toString().substring(2);
-  },
-  "%G": function(date) {
-   return getWeekBasedYear(date);
-  },
-  "%H": function(date) {
-   return leadingNulls(date.tm_hour, 2);
-  },
-  "%I": function(date) {
-   var twelveHour = date.tm_hour;
-   if (twelveHour == 0) twelveHour = 12; else if (twelveHour > 12) twelveHour -= 12;
-   return leadingNulls(twelveHour, 2);
-  },
-  "%j": function(date) {
-   return leadingNulls(date.tm_mday + __arraySum(__isLeapYear(date.tm_year + 1900) ? __MONTH_DAYS_LEAP : __MONTH_DAYS_REGULAR, date.tm_mon - 1), 3);
-  },
-  "%m": function(date) {
-   return leadingNulls(date.tm_mon + 1, 2);
-  },
-  "%M": function(date) {
-   return leadingNulls(date.tm_min, 2);
-  },
-  "%n": function() {
-   return "\n";
-  },
-  "%p": function(date) {
-   if (date.tm_hour >= 0 && date.tm_hour < 12) {
-    return "AM";
-   } else {
-    return "PM";
-   }
-  },
-  "%S": function(date) {
-   return leadingNulls(date.tm_sec, 2);
-  },
-  "%t": function() {
-   return "\t";
-  },
-  "%u": function(date) {
-   return date.tm_wday || 7;
-  },
-  "%U": function(date) {
-   var janFirst = new Date(date.tm_year + 1900, 0, 1);
-   var firstSunday = janFirst.getDay() === 0 ? janFirst : __addDays(janFirst, 7 - janFirst.getDay());
-   var endDate = new Date(date.tm_year + 1900, date.tm_mon, date.tm_mday);
-   if (compareByDay(firstSunday, endDate) < 0) {
-    var februaryFirstUntilEndMonth = __arraySum(__isLeapYear(endDate.getFullYear()) ? __MONTH_DAYS_LEAP : __MONTH_DAYS_REGULAR, endDate.getMonth() - 1) - 31;
-    var firstSundayUntilEndJanuary = 31 - firstSunday.getDate();
-    var days = firstSundayUntilEndJanuary + februaryFirstUntilEndMonth + endDate.getDate();
-    return leadingNulls(Math.ceil(days / 7), 2);
-   }
-   return compareByDay(firstSunday, janFirst) === 0 ? "01" : "00";
-  },
-  "%V": function(date) {
-   var janFourthThisYear = new Date(date.tm_year + 1900, 0, 4);
-   var janFourthNextYear = new Date(date.tm_year + 1901, 0, 4);
-   var firstWeekStartThisYear = getFirstWeekStartDate(janFourthThisYear);
-   var firstWeekStartNextYear = getFirstWeekStartDate(janFourthNextYear);
-   var endDate = __addDays(new Date(date.tm_year + 1900, 0, 1), date.tm_yday);
-   if (compareByDay(endDate, firstWeekStartThisYear) < 0) {
-    return "53";
-   }
-   if (compareByDay(firstWeekStartNextYear, endDate) <= 0) {
-    return "01";
-   }
-   var daysDifference;
-   if (firstWeekStartThisYear.getFullYear() < date.tm_year + 1900) {
-    daysDifference = date.tm_yday + 32 - firstWeekStartThisYear.getDate();
-   } else {
-    daysDifference = date.tm_yday + 1 - firstWeekStartThisYear.getDate();
-   }
-   return leadingNulls(Math.ceil(daysDifference / 7), 2);
-  },
-  "%w": function(date) {
-   return date.tm_wday;
-  },
-  "%W": function(date) {
-   var janFirst = new Date(date.tm_year, 0, 1);
-   var firstMonday = janFirst.getDay() === 1 ? janFirst : __addDays(janFirst, janFirst.getDay() === 0 ? 1 : 7 - janFirst.getDay() + 1);
-   var endDate = new Date(date.tm_year + 1900, date.tm_mon, date.tm_mday);
-   if (compareByDay(firstMonday, endDate) < 0) {
-    var februaryFirstUntilEndMonth = __arraySum(__isLeapYear(endDate.getFullYear()) ? __MONTH_DAYS_LEAP : __MONTH_DAYS_REGULAR, endDate.getMonth() - 1) - 31;
-    var firstMondayUntilEndJanuary = 31 - firstMonday.getDate();
-    var days = firstMondayUntilEndJanuary + februaryFirstUntilEndMonth + endDate.getDate();
-    return leadingNulls(Math.ceil(days / 7), 2);
-   }
-   return compareByDay(firstMonday, janFirst) === 0 ? "01" : "00";
-  },
-  "%y": function(date) {
-   return (date.tm_year + 1900).toString().substring(2);
-  },
-  "%Y": function(date) {
-   return date.tm_year + 1900;
-  },
-  "%z": function(date) {
-   var off = date.tm_gmtoff;
-   var ahead = off >= 0;
-   off = Math.abs(off) / 60;
-   off = off / 60 * 100 + off % 60;
-   return (ahead ? "+" : "-") + String("0000" + off).slice(-4);
-  },
-  "%Z": function(date) {
-   return date.tm_zone;
-  },
-  "%%": function() {
-   return "%";
-  }
- };
- for (var rule in EXPANSION_RULES_2) {
-  if (pattern.includes(rule)) {
-   pattern = pattern.replace(new RegExp(rule, "g"), EXPANSION_RULES_2[rule](date));
-  }
- }
- var bytes = intArrayFromString(pattern, false);
- if (bytes.length > maxsize) {
-  return 0;
- }
- writeArrayToMemory(bytes, s);
- return bytes.length - 1;
-}
-
-function _strftime_l(s, maxsize, format, tm) {
- return _strftime(s, maxsize, format, tm);
-}
-
-function _time(ptr) {
- var ret = Date.now() / 1e3 | 0;
- if (ptr) {
-  HEAP32[ptr >> 2] = ret;
- }
- return ret;
-}
-
-var FSNode = function(parent, name, mode, rdev) {
- if (!parent) {
-  parent = this;
- }
- this.parent = parent;
- this.mount = parent.mount;
- this.mounted = null;
- this.id = FS.nextInode++;
- this.name = name;
- this.mode = mode;
- this.node_ops = {};
- this.stream_ops = {};
- this.rdev = rdev;
-};
-
-var readMode = 292 | 73;
-
-var writeMode = 146;
-
-Object.defineProperties(FSNode.prototype, {
- read: {
-  get: function() {
-   return (this.mode & readMode) === readMode;
-  },
-  set: function(val) {
-   val ? this.mode |= readMode : this.mode &= ~readMode;
-  }
- },
- write: {
-  get: function() {
-   return (this.mode & writeMode) === writeMode;
-  },
-  set: function(val) {
-   val ? this.mode |= writeMode : this.mode &= ~writeMode;
-  }
- },
- isFolder: {
-  get: function() {
-   return FS.isDir(this.mode);
-  }
- },
- isDevice: {
-  get: function() {
-   return FS.isChrdev(this.mode);
-  }
- }
-});
-
-FS.FSNode = FSNode;
-
-FS.staticInit();
-
-function 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 asmLibraryArg = {
- "K": ___cxa_allocate_exception,
- "y": ___cxa_begin_catch,
- "wb": ___cxa_current_primary_exception,
- "Ja": ___cxa_decrement_exception_refcount,
- "G": ___cxa_end_catch,
- "b": ___cxa_find_matching_catch_2,
- "n": ___cxa_find_matching_catch_3,
- "C": ___cxa_find_matching_catch_4,
- "L": ___cxa_free_exception,
- "Ia": ___cxa_increment_exception_refcount,
- "Ea": ___cxa_rethrow,
- "vb": ___cxa_rethrow_primary_exception,
- "J": ___cxa_throw,
- "xb": ___cxa_uncaught_exceptions,
- "e": ___resumeException,
- "Ka": ___syscall_fcntl64,
- "Cb": ___syscall_ioctl,
- "La": ___syscall_open,
- "Ga": _abort,
- "Ha": _clock_gettime,
- "Bb": _emscripten_get_heap_max,
- "tb": _emscripten_memcpy_big,
- "ub": _emscripten_resize_heap,
- "zb": _environ_get,
- "Ab": _environ_sizes_get,
- "na": _fd_close,
- "Ma": _fd_read,
- "pb": _fd_seek,
- "oa": _fd_write,
- "a": _getTempRet0,
- "Z": invoke_di,
- "v": invoke_dii,
- "V": invoke_diii,
- "o": invoke_fi,
- "I": invoke_fii,
- "Da": invoke_fiii,
- "Ib": invoke_fiiii,
- "Oa": invoke_fiiiii,
- "X": invoke_fiiiiii,
- "r": invoke_i,
- "c": invoke_ii,
- "R": invoke_iid,
- "ma": invoke_iif,
- "T": invoke_iifff,
- "mb": invoke_iifii,
- "d": invoke_iii,
- "j": invoke_iiii,
- "la": invoke_iiiidd,
- "va": invoke_iiiidi,
- "D": invoke_iiiidii,
- "Hb": invoke_iiiiff,
- "m": invoke_iiiii,
- "xa": invoke_iiiiid,
- "da": invoke_iiiiidii,
- "p": invoke_iiiiii,
- "s": invoke_iiiiiii,
- "Eb": invoke_iiiiiiif,
- "ka": invoke_iiiiiiii,
- "H": invoke_iiiiiiiii,
- "Qa": invoke_iiiiiiiiii,
- "ha": invoke_iiiiiiiiiii,
- "ca": invoke_iiiiiiiiiiii,
- "nb": invoke_iiiiij,
- "sb": invoke_j,
- "qb": invoke_jii,
- "rb": invoke_jiii,
- "ob": invoke_jiiii,
- "t": invoke_v,
- "ib": invoke_vdiii,
- "ab": invoke_vffi,
- "Xa": invoke_vfi,
- "i": invoke_vi,
- "N": invoke_vidi,
- "U": invoke_vididdii,
- "Aa": invoke_vidii,
- "Gb": invoke_viffffffff,
- "S": invoke_vifi,
- "sa": invoke_vifii,
- "g": invoke_vii,
- "l": invoke_viid,
- "lb": invoke_viidf,
- "F": invoke_viididii,
- "bb": invoke_viidiiid,
- "W": invoke_viidiiiii,
- "Pa": invoke_viifff,
- "ra": invoke_viifffiiii,
- "qa": invoke_viiffifi,
- "Ya": invoke_viifii,
- "Fb": invoke_viifiifi,
- "fa": invoke_viifiifii,
- "Y": invoke_viifiiiiiii,
- "h": invoke_viii,
- "Q": invoke_viiid,
- "w": invoke_viiidd,
- "A": invoke_viiiddi,
- "z": invoke_viiidi,
- "Ua": invoke_viiiff,
- "Va": invoke_viiifi,
- "pa": invoke_viiifii,
- "k": invoke_viiii,
- "M": invoke_viiiid,
- "cb": invoke_viiiidd,
- "kb": invoke_viiiidi,
- "ya": invoke_viiiidid,
- "Ba": invoke_viiiidiidiiiiiii,
- "ta": invoke_viiiif,
- "Jb": invoke_viiiiffi,
- "Wa": invoke_viiiifi,
- "Ca": invoke_viiiifiifiiiiiii,
- "_a": invoke_viiiifiiifiii,
- "f": invoke_viiiii,
- "ja": invoke_viiiiid,
- "ea": invoke_viiiiifi,
- "q": invoke_viiiiii,
- "Fa": invoke_viiiiiiddi,
- "ia": invoke_viiiiiidi,
- "hb": invoke_viiiiiidiii,
- "Ra": invoke_viiiiiif,
- "$a": invoke_viiiiiifiiiiiifiii,
- "u": invoke_viiiiiii,
- "jb": invoke_viiiiiiiddi,
- "Za": invoke_viiiiiiifiiiifiii,
- "ua": invoke_viiiiiiifiiiiiifiii,
- "x": invoke_viiiiiiii,
- "_": invoke_viiiiiiiidd,
- "$": invoke_viiiiiiiidf,
- "Db": invoke_viiiiiiiif,
- "B": invoke_viiiiiiiii,
- "fb": invoke_viiiiiiiiidd,
- "eb": invoke_viiiiiiiiiddi,
- "Sa": invoke_viiiiiiiiiffiii,
- "E": invoke_viiiiiiiiii,
- "za": invoke_viiiiiiiiiiddi,
- "ga": invoke_viiiiiiiiiifii,
- "O": invoke_viiiiiiiiiii,
- "wa": invoke_viiiiiiiiiiiii,
- "db": invoke_viiiiiiiiiiiiii,
- "ba": invoke_viiiiiiiiiiiiiii,
- "Ta": invoke_viiiiiiiiiiiiiiii,
- "gb": invoke_viiiiiiiiiiiiiiiiiiidi,
- "P": _llvm_eh_typeid_for,
- "aa": _setTempRet0,
- "yb": _strftime_l,
- "Na": _time
-};
-
-var asm = createWasm();
-
-var ___wasm_call_ctors = Module["___wasm_call_ctors"] = function() {
- return (___wasm_call_ctors = Module["___wasm_call_ctors"] = Module["asm"]["Lb"]).apply(null, arguments);
-};
-
-var _qrtool_angle = Module["_qrtool_angle"] = function() {
- return (_qrtool_angle = Module["_qrtool_angle"] = Module["asm"]["Mb"]).apply(null, arguments);
-};
-
-var _malloc = Module["_malloc"] = function() {
- return (_malloc = Module["_malloc"] = Module["asm"]["Ob"]).apply(null, arguments);
-};
-
-var _free = Module["_free"] = function() {
- return (_free = Module["_free"] = Module["asm"]["Pb"]).apply(null, arguments);
-};
-
-var ___errno_location = Module["___errno_location"] = function() {
- return (___errno_location = Module["___errno_location"] = Module["asm"]["Qb"]).apply(null, arguments);
-};
-
-var stackSave = Module["stackSave"] = function() {
- return (stackSave = Module["stackSave"] = Module["asm"]["Rb"]).apply(null, arguments);
-};
-
-var stackRestore = Module["stackRestore"] = function() {
- return (stackRestore = Module["stackRestore"] = Module["asm"]["Sb"]).apply(null, arguments);
-};
-
-var stackAlloc = Module["stackAlloc"] = function() {
- return (stackAlloc = Module["stackAlloc"] = Module["asm"]["Tb"]).apply(null, arguments);
-};
-
-var _setThrew = Module["_setThrew"] = function() {
- return (_setThrew = Module["_setThrew"] = Module["asm"]["Ub"]).apply(null, arguments);
-};
-
-var ___cxa_can_catch = Module["___cxa_can_catch"] = function() {
- return (___cxa_can_catch = Module["___cxa_can_catch"] = Module["asm"]["Vb"]).apply(null, arguments);
-};
-
-var ___cxa_is_pointer_type = Module["___cxa_is_pointer_type"] = function() {
- return (___cxa_is_pointer_type = Module["___cxa_is_pointer_type"] = Module["asm"]["Wb"]).apply(null, arguments);
-};
-
-var dynCall_j = Module["dynCall_j"] = function() {
- return (dynCall_j = Module["dynCall_j"] = Module["asm"]["Xb"]).apply(null, arguments);
-};
-
-var dynCall_jiii = Module["dynCall_jiii"] = function() {
- return (dynCall_jiii = Module["dynCall_jiii"] = Module["asm"]["Yb"]).apply(null, arguments);
-};
-
-var dynCall_jii = Module["dynCall_jii"] = function() {
- return (dynCall_jii = Module["dynCall_jii"] = Module["asm"]["Zb"]).apply(null, arguments);
-};
-
-var dynCall_jiiii = Module["dynCall_jiiii"] = function() {
- return (dynCall_jiiii = Module["dynCall_jiiii"] = Module["asm"]["_b"]).apply(null, arguments);
-};
-
-var dynCall_iiiiij = Module["dynCall_iiiiij"] = function() {
- return (dynCall_iiiiij = Module["dynCall_iiiiij"] = Module["asm"]["$b"]).apply(null, arguments);
-};
-
-function invoke_iiiiii(index, a1, a2, a3, a4, a5) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1, a2, a3, a4, a5);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") 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 !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_vi(index, a1) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_ii(index, a1) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiidd(index, a1, a2, a3, a4, a5) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiddi(index, a1, a2, a3, a4, a5, a6) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiii(index, a1, a2, a3, a4) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_iiii(index, a1, a2, a3) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1, a2, a3);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") 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 !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-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 !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiii(index, a1, a2, a3, a4, a5, a6, a7) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_vii(index, a1, a2) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_iifii(index, a1, a2, a3, a4) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1, a2, a3, a4);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiiddi(index, a1, a2, a3, a4, a5, a6, a7, a8, a9) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiid(index, a1, a2, a3, a4) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_i(index) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)();
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viidf(index, a1, a2, a3, a4) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_v(index) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)();
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") 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 !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_iiiiiii(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 !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiii(index, a1, a2, a3, a4, a5, a6) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_iif(index, a1, a2) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1, a2);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_iid(index, a1, a2) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1, a2);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_iiiidd(index, a1, a2, a3, a4, a5) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1, a2, a3, a4, a5);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_vidi(index, a1, a2, a3) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_diii(index, a1, a2, a3) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1, a2, a3);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_iiiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_fiii(index, a1, a2, a3) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1, a2, a3);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viid(index, a1, a2, a3) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viididii(index, a1, a2, a3, a4, a5, a6, a7) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiifiifiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiidiidiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiidi(index, a1, a2, a3, a4, a5, a6) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_dii(index, a1, a2) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1, a2);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_vidii(index, a1, a2, a3, a4) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiiiiiiddi(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiiiddi(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiidi(index, a1, a2, a3, a4, a5) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiid(index, a1, a2, a3, a4, a5) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiidid(index, a1, a2, a3, a4, a5, a6, a7) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_vididdii(index, a1, a2, a3, a4, a5, a6, a7) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_vdiii(index, a1, a2, a3, a4) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_iiiiiiii(index, a1, a2, a3, a4, a5, a6, a7) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiiiidf(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiiiidd(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_di(index, a1) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiid(index, a1, a2, a3, a4, a5, a6) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_iiiiid(index, a1, a2, a3, a4, a5) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1, a2, a3, a4, a5);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiidiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiidi(index, a1, a2, a3, a4, a5, a6, a7, a8) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_iiiidii(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 !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_iiiiiiiiiii(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 !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiiiiiiiiiiiiiiidi(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20, a21) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20, a21);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiiiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiiiiidd(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_iiiidi(index, a1, a2, a3, a4, a5) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1, a2, a3, a4, a5);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiiiiiddi(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiiiiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiidd(index, a1, a2, a3, a4, a5, a6) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viidiiid(index, a1, a2, a3, a4, a5, a6, a7) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_fii(index, a1, a2) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1, a2);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_vffi(index, a1, a2, a3) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiiiiiifii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiifiiiiiifiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiiifiiiiiifiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiifiiifiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viifiifii(index, a1, a2, a3, a4, a5, a6, a7, a8) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiiifiiiifiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viifii(index, a1, a2, a3, a4, a5) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiif(index, a1, a2, a3, a4, a5) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_vfi(index, a1, a2) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiifi(index, a1, a2, a3, a4, a5, a6) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiifi(index, a1, a2, a3, a4, a5) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viifiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_fiiiiii(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 !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiff(index, a1, a2, a3, a4, a5) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_vifii(index, a1, a2, a3, a4) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viifffiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiffifi(index, a1, a2, a3, a4, a5, a6, a7) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiiiiiiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiiiiiffiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiif(index, a1, a2, a3, a4, a5, a6, a7) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiifi(index, a1, a2, a3, a4, a5, a6, a7) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viidiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiffi(index, a1, a2, a3, a4, a5, a6, a7) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiifii(index, a1, a2, a3, a4, a5, a6) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") 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 !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_fi(index, a1) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_fiiii(index, a1, a2, a3, a4) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1, a2, a3, a4);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_iifff(index, a1, a2, a3, a4) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1, a2, a3, a4);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viifff(index, a1, a2, a3, a4, a5) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_fiiiii(index, a1, a2, a3, a4, a5) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1, a2, a3, a4, a5);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_iiiiff(index, a1, a2, a3, a4, a5) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1, a2, a3, a4, a5);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viffffffff(index, a1, a2, a3, a4, a5, a6, a7, a8, a9) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viifiifi(index, a1, a2, a3, a4, a5, a6, a7) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_iiiiiiif(index, a1, a2, a3, a4, a5, a6, a7) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiiiif(index, a1, a2, a3, a4, a5, a6, a7, a8, a9) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_iiiiidii(index, a1, a2, a3, a4, a5, a6, a7) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_vifi(index, a1, a2, a3) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_iiiiiiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11) {
- var sp = stackSave();
- try {
-  return getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_viiiiiiiiiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15) {
- var sp = stackSave();
- try {
-  getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_j(index) {
- var sp = stackSave();
- try {
-  return dynCall_j(index);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_jiii(index, a1, a2, a3) {
- var sp = stackSave();
- try {
-  return dynCall_jiii(index, a1, a2, a3);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_jii(index, a1, a2) {
- var sp = stackSave();
- try {
-  return dynCall_jii(index, a1, a2);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_jiiii(index, a1, a2, a3, a4) {
- var sp = stackSave();
- try {
-  return dynCall_jiiii(index, a1, a2, a3, a4);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-function invoke_iiiiij(index, a1, a2, a3, a4, a5, a6) {
- var sp = stackSave();
- try {
-  return dynCall_iiiiij(index, a1, a2, a3, a4, a5, a6);
- } catch (e) {
-  stackRestore(sp);
-  if (e !== e + 0 && e !== "longjmp") throw e;
-  _setThrew(1, 0);
- }
-}
-
-Module["ccall"] = ccall;
-
-Module["cwrap"] = cwrap;
-
-var calledRun;
-
-dependenciesFulfilled = function runCaller() {
- if (!calledRun) run();
- if (!calledRun) dependenciesFulfilled = runCaller;
-};
-
-function run(args) {
- args = args || arguments_;
- if (runDependencies > 0) {
-  return;
- }
- preRun();
- if (runDependencies > 0) {
-  return;
- }
- function doRun() {
-  if (calledRun) return;
-  calledRun = true;
-  Module["calledRun"] = true;
-  if (ABORT) return;
-  initRuntime();
-  if (Module["onRuntimeInitialized"]) Module["onRuntimeInitialized"]();
-  postRun();
- }
- if (Module["setStatus"]) {
-  Module["setStatus"]("Running...");
-  setTimeout(function() {
-   setTimeout(function() {
-    Module["setStatus"]("");
-   }, 1);
-   doRun();
-  }, 1);
- } else {
-  doRun();
- }
-}
-
-Module["run"] = run;
-
-if (Module["preInit"]) {
- if (typeof Module["preInit"] == "function") Module["preInit"] = [ Module["preInit"] ];
- while (Module["preInit"].length > 0) {
-  Module["preInit"].pop()();
- }
-}
-
-run();
-
-module.exports = Module;
diff --git a/scanner/assets/qrtool.wx.wasm.br b/scanner/assets/qrtool.wx.wasm.br
deleted file mode 100755
index 0428707..0000000
Binary files a/scanner/assets/qrtool.wx.wasm.br and /dev/null differ
diff --git a/scanner/pages/emblemscanner/assets/qrtool.wx.wasm.br b/scanner/pages/emblemscanner/assets/qrtool.wx.wasm.br
new file mode 100755
index 0000000..e21b689
Binary files /dev/null and b/scanner/pages/emblemscanner/assets/qrtool.wx.wasm.br differ
diff --git a/scanner/pages/emblemscanner/emblemscanner.js b/scanner/pages/emblemscanner/emblemscanner.js
index 4e2de90..fcdce13 100644
--- a/scanner/pages/emblemscanner/emblemscanner.js
+++ b/scanner/pages/emblemscanner/emblemscanner.js
@@ -1,5 +1,28 @@
 // QR Scanner Module - Self-contained QR scanning page
 // Adapted from existing camera implementation
+//
+// SCANNING MODES:
+// 1. Web View Mode - Uses external camera-5.1 web interface in web-view component
+//    - Fallback for devices that need special handling
+//    - Configured via camera rules API (web_view: true)
+//    - Redirects back with wx_redirect_to parameter
+//
+// 2. Plain WASM Mode - Direct WASM processing in main thread
+//    - Uses qrtool.wx.js/qrtool.wx.wasm for QR detection
+//    - Camera frame capture via takePhoto() API
+//    - Suitable for most Android devices
+//
+// 3. Worker WASM Mode - WASM processing in worker thread (experimental)
+//    - Uses efficient camera frame API for high-performance processing
+//    - Enabled for iPhone devices (phone model contains "iphone")
+//    - Reduces main thread blocking during QR processing
+//
+// RUNTIME CONFIGURATION:
+// - Camera rules fetched from API based on phone model substring matching
+// - Default behavior: Plain WASM mode for most devices
+// - iPhone detection: phone_model.toLowerCase().includes('iphone') → Worker WASM
+// - Special device rules: camera rules API can override with web_view: true
+// - no_web_view parameter can override web_view rules for testing
 
 // Import utility functions from library
 const {
@@ -12,6 +35,15 @@ const {
   is_emblem_qr_pattern
 } = require('./libemblemscanner.js');
 
+// Import QR processing module
+const {
+  load_qrtool,
+  is_qrtool_ready,
+  process_frame,
+  process_frame_with_debug,
+  make_hint_text
+} = require('./qrprocessor.js');
+
 Page({
   /**
    * Page initial data
@@ -40,6 +72,13 @@ Page({
     tenant_id: '', // Tenant identifier
     debug_msgs: [],
     debug_image_data_url: '',
+    qrtool_ready: false,
+    // Frame processing statistics
+    frames_processed: 0,
+    frames_skipped: 0,
+    total_processing_time: 0,
+    avg_processing_time: 0,
+    last_frame_time: 0,
     rule_zoom: -1,
     camera_rule: null,
     use_web_view: false,
@@ -47,7 +86,7 @@ Page({
     // State machine: loading -> scanning -> verifying -> result
     app_state: 'loading', // 'loading', 'scanning_camera', 'scanning_webview', 'verifying', 'result'
     scan_mode: 'unknown', // 'camera', 'webview'
-    force_camera: false // Override web-view rule, force native camera
+    no_web_view: false // Override web-view rule, force native camera
   },
 
   /**
@@ -57,11 +96,11 @@ Page({
     console.log('QR Scanner module loaded', options);
     
     // Store query parameters
-    const force_camera = options.force_camera === '1' || options.force_camera === 'true';
+    const no_web_view = options.no_web_view === '1' || options.no_web_view === 'true';
     
     this.setData({
       return_page: options.return_page || '',
-      force_camera: force_camera
+      no_web_view: no_web_view
     });
 
     // Initialize image data storage
@@ -74,6 +113,9 @@ Page({
     // Get system information
     this.initializeSystem(enable_debug);
     
+    // Initialize QRTool WASM
+    this.initializeQRTool();
+    
     // Fetch IP address and tenant info, then load camera rules
     this.fetchRealIP();
     this.fetchTenantID();
@@ -97,6 +139,25 @@ Page({
     this.setData({ tenant_id });
   },
 
+  /**
+   * Initialize QRTool WASM module
+   */
+  initializeQRTool() {
+    load_qrtool();
+    
+    // Check readiness periodically
+    const checkReady = () => {
+      if (is_qrtool_ready()) {
+        this.setData({ qrtool_ready: true });
+        this.addDebugMessage('QRTool WASM loaded and ready');
+        this.startFrameProcessing();
+      } else {
+        setTimeout(checkReady, 100);
+      }
+    };
+    checkReady();
+  },
+
   /**
    * Initialize system information and device detection
    */
@@ -121,8 +182,8 @@ Page({
     get_camera_rule(null, (rule) => {
       console.log('Camera rule loaded:', rule);
       
-      // Check for force_camera override
-      const should_use_webview = rule.web_view && !this.data.force_camera;
+      // Check for no_web_view override
+      const should_use_webview = rule.web_view && !this.data.no_web_view;
       let emblem_camera_url = null;
       
       // Set up web-view URL if needed
@@ -130,11 +191,7 @@ Page({
         emblem_camera_url = "https://themblem.com/camera-5.1/?" + make_query(rule.zoom, this.data.return_page, this.data.real_ip, this.data.tenant_id);
         this.addDebugMessage(`Using web-view camera: ${emblem_camera_url}`);
       } else {
-        if (this.data.force_camera && rule.web_view) {
-          this.addDebugMessage('Forcing native camera (override web-view rule)');
-        } else {
-          this.addDebugMessage('Using native WeChat camera');
-        }
+        this.addDebugMessage('Using native camera with local WASM processing');
       }
       
       this.setData({
@@ -147,7 +204,7 @@ Page({
       });
       
       // Add rule info to debug messages
-      this.addDebugMessage(`Camera rule: zoom=${rule.zoom}, web_view=${rule.web_view}${this.data.force_camera ? ' (FORCED_CAMERA)' : ''}`);
+      this.addDebugMessage(`Camera rule: zoom=${rule.zoom}, web_view=${rule.web_view}${this.data.no_web_view ? ' (NO_WEB_VIEW)' : ''}`);
       
       // Transition to appropriate scanning state
       if (should_use_webview) {
@@ -164,7 +221,7 @@ Page({
   onCameraReady(e) {
     console.log('Camera ready', e);
     this.camera_context = wx.createCameraContext();
-    this.addDebugMessage('Camera initialized in scanCode mode');
+    this.addDebugMessage('Camera initialized for WASM processing');
     // State transition is handled in loadCameraRules
   },
 
@@ -273,6 +330,134 @@ Page({
     });
   },
 
+  /**
+   * Start frame processing - sets up camera frame listener
+   */
+  startFrameProcessing() {
+    if (!this.data.qrtool_ready || !this.camera_context) {
+      this.addDebugMessage('QRTool or camera not ready, skipping frame processing');
+      return;
+    }
+    
+    this.addDebugMessage('Starting camera frame listener');
+    this.lastFrameTime = 0;
+    
+    // Set up camera frame listener
+    this.listener = this.camera_context.onCameraFrame((frame) => {
+      this.onCameraFrame(frame);
+    });
+    
+    // Start the listener
+    this.listener.start();
+  },
+
+  /**
+   * Camera frame callback - receives live camera frames
+   */
+  onCameraFrame(frame) {
+    // Only process frames when in camera scanning state and QRTool is ready
+    if (this.data.app_state !== 'scanning_camera' || !this.data.qrtool_ready) {
+      return;
+    }
+
+    // Throttle frame processing to avoid overwhelming the system
+    const now = Date.now();
+    if (this.lastFrameTime && (now - this.lastFrameTime) < 200) {
+      this.setData({
+        frames_skipped: this.data.frames_skipped + 1
+      });
+      return;
+    }
+    this.lastFrameTime = now;
+
+    // Start timing frame processing
+    const processStart = performance.now();
+
+    // Process frame data directly
+    try {
+      const result = this.data.enable_debug ? 
+        process_frame_with_debug(frame.width, frame.height, frame.data, this.data.camera_sensitivity) :
+        process_frame(frame.width, frame.height, frame.data, this.data.camera_sensitivity);
+      
+      // Calculate processing time
+      const processEnd = performance.now();
+      const processingTime = processEnd - processStart;
+      
+      // Update statistics
+      const newFramesProcessed = this.data.frames_processed + 1;
+      const newTotalTime = this.data.total_processing_time + processingTime;
+      const newAvgTime = newTotalTime / newFramesProcessed;
+      
+      this.setData({
+        frames_processed: newFramesProcessed,
+        total_processing_time: newTotalTime,
+        avg_processing_time: newAvgTime,
+        last_frame_time: processingTime
+      });
+      
+      if (result) {
+        this.handleQRResult(result);
+      }
+    } catch (error) {
+      this.addDebugMessage(`Frame processing error: ${error.message}`);
+      // Still count failed processing attempts
+      const processEnd = performance.now();
+      const processingTime = processEnd - processStart;
+      
+      const newFramesProcessed = this.data.frames_processed + 1;
+      const newTotalTime = this.data.total_processing_time + processingTime;
+      const newAvgTime = newTotalTime / newFramesProcessed;
+      
+      this.setData({
+        frames_processed: newFramesProcessed,
+        total_processing_time: newTotalTime,
+        avg_processing_time: newAvgTime,
+        last_frame_time: processingTime
+      });
+    }
+  },
+
+  /**
+   * Handle QR processing result
+   */
+  handleQRResult(result) {
+    // Update debug info if available
+    if (result.debug_data_url) {
+      this.setData({
+        debug_image_data_url: result.debug_data_url
+      });
+    }
+    
+    // Generate hint text
+    const hint = make_hint_text(result);
+    
+    // Check if we have a valid QR code
+    if (result.qrcode && result.valid_pattern && result.ok) {
+      this.addDebugMessage(`QR detected: ${result.qrcode}`);
+      this.onQRCodeDetected(result.qrcode);
+    } else {
+      // Update hint for user guidance
+      this.setData({ hint_text: hint });
+      
+      if (result.qrcode) {
+        this.addDebugMessage(`QR found but not valid: ${result.qrcode} (${result.err})`);
+      }
+    }
+  },
+
+  /**
+   * Handle successful QR code detection
+   */
+  onQRCodeDetected(qrCode) {
+    // Start verification process
+    this.startVerifying();
+    
+    // Simulate verification delay, then go to result
+    setTimeout(() => {
+      this.goToResult(qrCode);
+    }, 2000);
+  },
+
   /**
    * State: Loading -> Scanning (Web-view)
    */
@@ -327,11 +512,17 @@ Page({
       show_modal: '',
       hint_text: '初始化相机...',
       busy: true,
-      qr_position: null,
-      qr_sharpness: 0,
-      qr_size: 0
+      // Reset frame processing statistics
+      frames_processed: 0,
+      frames_skipped: 0,
+      total_processing_time: 0,
+      avg_processing_time: 0,
+      last_frame_time: 0
     });
     
+    // Reset frame timing
+    this.lastFrameTime = 0;
+    
     // Reload camera rules to restart the flow
     this.loadCameraRules();
   },
@@ -387,5 +578,29 @@ Page({
     return is_emblem_qr_pattern(qrCode);
   },
 
+  /**
+   * Lifecycle - page hide
+   */
+  onHide() {
+    this.cleanupListener();
+  },
+
+  /**
+   * Lifecycle - page unload
+   */
+  onUnload() {
+    this.cleanupListener();
+  },
+
+  /**
+   * Clean up camera frame listener
+   */
+  cleanupListener() {
+    if (this.listener) {
+      this.listener.stop();
+      this.listener = null;
+      this.addDebugMessage('Camera frame listener stopped');
+    }
+  }
 
 });
\ No newline at end of file
diff --git a/scanner/pages/emblemscanner/emblemscanner.wxml b/scanner/pages/emblemscanner/emblemscanner.wxml
index 2f38668..77e6e56 100644
--- a/scanner/pages/emblemscanner/emblemscanner.wxml
+++ b/scanner/pages/emblemscanner/emblemscanner.wxml
@@ -30,6 +30,7 @@
         <!-- WeChat native camera -->
         <camera class="camera" 
                 flash="{{ camera_flash }}"
+                frame-size="medium"
                 bindready="onCameraReady"
                 binderror="onCameraError">
         </camera>
@@ -43,19 +44,61 @@
         </web-view>
     </block>
     
-    
     <!-- Debug overlay (available in all states) -->
     <view class="debug" wx:if="{{ enable_debug }}">
         <view><image src="{{ debug_image_data_url }}"></image></view>
-        <view wx:for="{{ debug_msgs }}">{{ item }}</view>
-        <view>state: {{ app_state }} ({{ scan_mode }})</view>
-        <view>model: {{ phone_model }}</view>
-        <view>zoom: {{ zoom }} (rule: {{ rule_zoom }})</view>
-        <view>camera rule: {{ camera_rule.model || 'default' }} (web_view: {{ use_web_view }})</view>
-        <view wx:if="{{ force_camera }}">FORCE_CAMERA: enabled</view>
-        <view>sensitivity: {{ camera_sensitivity }}</view>
-        <view>max zoom: {{ max_zoom }}</view>
-        <view>result: {{ result }}</view>
+        <view class="debug-messages">
+            <text wx:for="{{ debug_msgs }}" class="debug-msg">{{ item }}</text>
+        </view>
+        <view class="debug-items">
+            <view class="debug-item">
+                <text class="debug-label">state:</text>
+                <text class="debug-value">{{ app_state }}</text>
+            </view>
+            <view class="debug-item">
+                <text class="debug-label">model:</text>
+                <text class="debug-value">{{ phone_model }}</text>
+            </view>
+            <view class="debug-item">
+                <text class="debug-label">zoom:</text>
+                <text class="debug-value">{{ zoom }}/{{ max_zoom }}</text>
+            </view>
+            <view class="debug-item debug-flag-box" wx:if="{{ no_web_view }}">
+                <text class="debug-flag">no_web_view</text>
+            </view>
+            <view class="debug-item">
+                <text class="debug-label">rule:</text>
+                <text class="debug-value">{{ camera_rule.model || 'default' }}</text>
+            </view>
+            <view class="debug-item">
+                <text class="debug-label">web_view:</text>
+                <text class="debug-value">{{ use_web_view }}</text>
+            </view>
+            <view class="debug-item">
+                <text class="debug-label">sensitivity:</text>
+                <text class="debug-value">{{ camera_sensitivity }}</text>
+            </view>
+            <view class="debug-item">
+                <text class="debug-label">frames:</text>
+                <text class="debug-value">{{ frames_processed }}/{{ frames_processed + frames_skipped }}</text>
+            </view>
+            <view class="debug-item">
+                <text class="debug-label">skipped:</text>
+                <text class="debug-value">{{ frames_skipped }}</text>
+            </view>
+            <view class="debug-item">
+                <text class="debug-label">avg:</text>
+                <text class="debug-value">{{ avg_processing_time.toFixed(2) }}ms</text>
+            </view>
+            <view class="debug-item">
+                <text class="debug-label">last:</text>
+                <text class="debug-value">{{ last_frame_time.toFixed(2) }}ms</text>
+            </view>
+            <view class="debug-item" wx:if="{{ result }}">
+                <text class="debug-label">result:</text>
+                <text class="debug-value">{{ result }}</text>
+            </view>
+        </view>
     </view>
     
     <!-- Bottom action controls (only for camera scanning) -->
diff --git a/scanner/pages/emblemscanner/emblemscanner.wxss b/scanner/pages/emblemscanner/emblemscanner.wxss
index ed6278c..198c8cb 100644
--- a/scanner/pages/emblemscanner/emblemscanner.wxss
+++ b/scanner/pages/emblemscanner/emblemscanner.wxss
@@ -186,29 +186,86 @@ view.brighter {
 /* Debug overlay */
 view.debug {
     position: absolute;
-    width: 80%;
+    width: 94%;
     max-height: 30vh;
     bottom: 240rpx;
-    left: 10px;
+    left: 50%;
+    transform: translateX(-50%);
     padding: 0.3rem;
-    border: 1px solid yellow;
+    border: 1px solid rgba(239, 72, 35, 0.8);
     border-radius: 3px;
-    color: yellow;
+    color: rgba(239, 72, 35, 0.8);
     background-color: rgba(100, 100, 100, 0.5);
     z-index: 1000;
-    font-size: 13px;
-    word-break: break-all;
+    font-size: 10px;
     overflow-y: auto;
-    opacity: 0.5;
+    opacity: 0.75;
+    display: flex;
+    flex-direction: column;
 }
 
 view.debug image {
-    position: fixed;
     right: 10px;
     top: 10px;
     width: 64px;
     height: 64px;
-    border: 1px solid green;
+    border: 1px solid rgba(239, 72, 35, 0.8);
+}
+
+/* Debug messages section */
+.debug-messages {
+    margin-bottom: 4px;
+}
+
+.debug-msg {
+    display: block;
+    margin: 1px 0;
+    line-height: 1.2;
+    color: #ffffff;
+}
+
+/* Debug items container */
+.debug-items {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 2px;
+    align-items: flex-start;
+}
+
+/* Individual debug item boxes */
+.debug-item {
+    display: inline-flex;
+    align-items: center;
+    gap: 2px;
+    margin: 0;
+    padding: 1px 3px;
+    border: 1px solid rgba(239, 72, 35, 0.5);
+    border-radius: 2px;
+    background-color: rgba(0, 0, 0, 0.2);
+    line-height: 1.2;
+    white-space: nowrap;
+    flex-shrink: 0;
+}
+
+.debug-label {
+    color: #ffffff;
+    font-weight: bold;
+}
+
+.debug-value {
+    color: #99ff99;
+    word-break: break-word;
+}
+
+/* Special styling for no_web_view flag box */
+.debug-item.debug-flag-box {
+    border: 1px solid rgba(255, 0, 0, 0.6);
+    background-color: rgba(255, 0, 0, 0.1);
+}
+
+.debug-flag {
+    color: #ff9999;
+    font-weight: bold;
 }
 
 /* Tooltip */
diff --git a/scanner/pages/emblemscanner/qrprocessor.js b/scanner/pages/emblemscanner/qrprocessor.js
new file mode 100644
index 0000000..246a486
--- /dev/null
+++ b/scanner/pages/emblemscanner/qrprocessor.js
@@ -0,0 +1,186 @@
+// QR Processing Module for EmblemScanner
+// Self-contained WASM-based QR code processing
+
+var qrtool = null;
+var qrtool_ready = false;
+
+/**
+ * Load qrtool WASM module
+ */
+function load_qrtool() {
+  var m = require('./qrtool.wx.js');
+  m.onRuntimeInitialized = () => {
+    console.log("QRTool runtime initialized");
+    qrtool_ready = true;
+    qrtool = m;
+  }
+}
+
+/**
+ * Check if qrtool is ready for processing
+ */
+function is_qrtool_ready() {
+  return qrtool_ready;
+}
+
+/**
+ * Process camera frame for QR code detection
+ */
+function process_frame(width, height, image_data, camera_sensitivity) {
+  if (!qrtool_ready) {
+    console.log("qrtool not ready");
+    return null;
+  }
+
+  try {
+    // Allocate buffer for image data
+    var buf = qrtool._malloc(image_data.length * image_data.BYTES_PER_ELEMENT);
+    qrtool.HEAPU8.set(image_data, buf);
+    
+    // Process QR code detection with angle
+    var result_str = qrtool.ccall('qrtool_angle', 'string', 
+      ['number', 'number', 'number', 'number', 'number'], 
+      [buf, width, height, 0, camera_sensitivity || 1.0]
+    );
+    
+    // Clean up buffer
+    qrtool._free(buf);
+    
+    // Parse result
+    var result = JSON.parse(result_str);
+    
+    return {
+      qrcode: result.qrcode || '',
+      angle: result.angle || 0,
+      ok: result.ok || false,
+      err: result.err || '',
+      valid_pattern: is_emblem_qr_pattern(result.qrcode || '')
+    };
+  } catch (error) {
+    console.error('QR processing error:', error);
+    return null;
+  }
+}
+
+/**
+ * Process frame with dot area extraction (for debug visualization)
+ */
+function process_frame_with_debug(width, height, image_data, camera_sensitivity) {
+  if (!qrtool_ready) {
+    console.log("qrtool not ready");
+    return null;
+  }
+
+  try {
+    // Allocate buffer for image data
+    var buf = qrtool._malloc(image_data.length * image_data.BYTES_PER_ELEMENT);
+    qrtool.HEAPU8.set(image_data, buf);
+    
+    // Allocate buffer for debug dot area
+    const dot_area_size = 32;
+    const da_len = dot_area_size * dot_area_size * image_data.BYTES_PER_ELEMENT * 4;
+    var dot_area_buf = qrtool._malloc(da_len);
+    
+    // Process QR code detection with debug output
+    var result_str = qrtool.ccall('qrtool_angle', 'string', 
+      ['number', 'number', 'number', 'number', 'number'], 
+      [buf, width, height, dot_area_buf, camera_sensitivity || 1.0]
+    );
+    
+    // Extract debug image
+    var debug_view = qrtool.HEAPU8.subarray(dot_area_buf, dot_area_buf + da_len);
+    var debug_data_url = data_url_from_frame(dot_area_size, dot_area_size, debug_view);
+    
+    // Clean up buffers
+    qrtool._free(buf);
+    qrtool._free(dot_area_buf);
+    
+    // Parse result
+    var result = JSON.parse(result_str);
+    
+    return {
+      qrcode: result.qrcode || '',
+      angle: result.angle || 0,
+      ok: result.ok || false,
+      err: result.err || '',
+      valid_pattern: is_emblem_qr_pattern(result.qrcode || ''),
+      debug_data_url: debug_data_url
+    };
+  } catch (error) {
+    console.error('QR processing error:', error);
+    return null;
+  }
+}
+
+/**
+ * Create offscreen canvas for debug image generation
+ */
+const offscreenCanvas = wx.createOffscreenCanvas({
+  type: '2d',
+  width: 100,
+  height: 100,
+});
+
+/**
+ * Convert raw frame data to data URL for debug visualization
+ */
+function data_url_from_frame(width, height, image_data) {
+  offscreenCanvas.width = width;
+  offscreenCanvas.height = height;
+  var ctx = offscreenCanvas.getContext('2d');
+  var imgd = ctx.createImageData(width, height);
+  imgd.data.set(image_data);
+  ctx.putImageData(imgd, 0, 0);
+  return offscreenCanvas.toDataURL("image/jpeg", 1.0);
+}
+
+/**
+ * Check if QR code matches Emblem pattern
+ */
+function is_emblem_qr_pattern(p) {
+  if (!p) return false;
+  if (p.search(/code=[0-9a-zA-Z]+/) >= 0) return true;
+  if (p.search(/id=[0-9a-zA-Z]+/) >= 0) return true;
+  if (p.search(/c=[0-9a-zA-Z]+/) >= 0) return true;
+  if (p.search(/https:\/\/xy\.ltd\/v\/[0-9a-zA-Z]+/) >= 0) return true;
+  return false;
+}
+
+/**
+ * Generate hint text based on QR processing result
+ */
+function make_hint_text(result) {
+  if (!result) {
+    return "查找二维码";
+  }
+  
+  if (result.qrcode && result.qrcode.length > 0) {
+    if (!result.valid_pattern) {
+      return "无效编码";
+    }
+    
+    if (result.ok) {
+      return "识别成功";
+    }
+    
+    // Check specific error conditions
+    var err = result.err || "";
+    if (err.includes("margin too small")) {
+      return "对齐定位点";
+    } else if (err.includes("energy check failed") || err.includes("cannot detect angle")) {
+      return "移近一点";
+    }
+  }
+  
+  return "对齐定位点";
+}
+
+module.exports = {
+  load_qrtool,
+  is_qrtool_ready,
+  process_frame,
+  process_frame_with_debug,
+  data_url_from_frame,
+  is_emblem_qr_pattern,
+  make_hint_text
+};
\ No newline at end of file
diff --git a/scanner/pages/emblemscanner/qrtool.wx.js b/scanner/pages/emblemscanner/qrtool.wx.js
new file mode 100644
index 0000000..75dc389
--- /dev/null
+++ b/scanner/pages/emblemscanner/qrtool.wx.js
@@ -0,0 +1,5580 @@
+function _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, e; }
+function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == typeof i ? i : i + ""; }
+function _toPrimitive(t, r) { if ("object" != typeof t || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != typeof i) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
+// include: shell.js
+// The Module object: Our interface to the outside world. We import
+// and export values on it. There are various ways Module can be used:
+// 1. Not defined. We create it here
+// 2. A function parameter, function(moduleArg) => Promise<Module>
+// 3. pre-run appended it, var Module = {}; ..generated code..
+// 4. External script tag defines var Module.
+// We need to check if Module already exists (e.g. case 3 above).
+// Substitution will be replaced with actual code on later stage of the build,
+// this way Closure Compiler will not mangle it (e.g. case 4. above).
+// Note that if you want to run closure, and also to use Module
+// after the generated code, you will need to define   var Module = {};
+// before the code. Then that object will be used in the code, and you
+// can continue to use Module afterwards as well.
+var Module = typeof Module != "undefined" ? Module : {};
+
+// Determine the runtime environment we are in. You can customize this by
+// setting the ENVIRONMENT setting at compile time (see settings.js).
+var ENVIRONMENT_IS_WEB = true;
+var ENVIRONMENT_IS_WORKER = false;
+
+// --pre-jses are emitted after the Module integration code, so that they can
+// refer to Module (if they choose; they can also define Module)
+// include: /Users/fam/src/themblem/alg/pre.wx.js
+var window = {};
+var WA = WXWebAssembly;
+var WebAssembly = WA;
+WebAssembly.RuntimeErrror = Error;
+var performance = {
+  now: Date.now
+};
+Module["instantiateWasm"] = (info, receiveInstance) => {
+  console.log("loading wasm...", info);
+  WebAssembly.instantiate("assets/qrtool.wx.wasm.br", info).then(result => {
+    console.log("result:", result);
+    var inst = result["instance"];
+    receiveInstance(inst);
+  });
+};
+
+// end include: /Users/fam/src/themblem/alg/pre.wx.js
+// Sometimes an existing Module object exists with properties
+// meant to overwrite the default module functionality. Here
+// we collect those properties and reapply _after_ we configure
+// the current environment's defaults to avoid having to be so
+// defensive during initialization.
+var moduleOverrides = Object.assign({}, Module);
+var arguments_ = [];
+var thisProgram = "./this.program";
+
+// `/` should be present at the end if `scriptDirectory` is not empty
+var scriptDirectory = "";
+function locateFile(path) {
+  if (Module["locateFile"]) {
+    return Module["locateFile"](path, scriptDirectory);
+  }
+  return scriptDirectory + path;
+}
+
+// Hooks that are implemented differently in different runtime environments.
+var readAsync, readBinary;
+
+// Note that this includes Node.js workers when relevant (pthreads is enabled).
+// Node.js workers are detected as a combination of ENVIRONMENT_IS_WORKER and
+// ENVIRONMENT_IS_NODE.
+if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
+  if (ENVIRONMENT_IS_WORKER) {
+    // Check worker, not web, since window could be polyfilled
+    scriptDirectory = self.location.href;
+  } else if (typeof document != "undefined" && document.currentScript) {
+    // web
+    scriptDirectory = document.currentScript.src;
+  }
+  // blob urls look like blob:http://site.com/etc/etc and we cannot infer anything from them.
+  // otherwise, slice off the final part of the url to find the script directory.
+  // if scriptDirectory does not contain a slash, lastIndexOf will return -1,
+  // and scriptDirectory will correctly be replaced with an empty string.
+  // If scriptDirectory contains a query (starting with ?) or a fragment (starting with #),
+  // they are removed because they could contain a slash.
+  if (scriptDirectory.startsWith("blob:")) {
+    scriptDirectory = "";
+  } else {
+    scriptDirectory = scriptDirectory.substr(0, scriptDirectory.replace(/[?#].*/, "").lastIndexOf("/") + 1);
+  }
+  {
+    // include: web_or_worker_shell_read.js
+    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
+  // end include: web_or_worker_shell_read.js
+  {}
+var out = Module["print"] || console.log.bind(console);
+var err = Module["printErr"] || console.error.bind(console);
+
+// Merge back in the overrides
+Object.assign(Module, moduleOverrides);
+
+// Free the object hierarchy contained in the overrides, this lets the GC
+// reclaim data used.
+moduleOverrides = null;
+
+// Emit code to handle expected values on the Module object. This applies Module.x
+// to the proper local x. This has two benefits: first, we only emit it if it is
+// expected to arrive, and second, by using a local everywhere else that can be
+// minified.
+if (Module["arguments"]) arguments_ = Module["arguments"];
+if (Module["thisProgram"]) thisProgram = Module["thisProgram"];
+
+// perform assertions in shell.js after we set up out() and err(), as otherwise if an assertion fails it cannot print the message
+// end include: shell.js
+// include: preamble.js
+// === Preamble library stuff ===
+// Documentation for the public APIs defined in this file must be updated in:
+//    site/source/docs/api_reference/preamble.js.rst
+// A prebuilt local version of the documentation is available at:
+//    site/build/text/docs/api_reference/preamble.js.txt
+// You can also build docs locally as HTML or other formats in site/
+// An online HTML version (which may be of a different version of Emscripten)
+//    is up at http://kripken.github.io/emscripten-site/docs/api_reference/preamble.js.html
+var wasmBinary = Module["wasmBinary"];
+
+// Wasm globals
+var wasmMemory;
+
+//========================================
+// Runtime essentials
+//========================================
+// whether we are quitting the application. no code should run after this.
+// set in exit() and abort()
+var ABORT = false;
+
+// Memory management
+var /** @type {!Int8Array} */HEAP8, /** @type {!Uint8Array} */HEAPU8, /** @type {!Int16Array} */HEAP16, /** @type {!Uint16Array} */HEAPU16, /** @type {!Int32Array} */HEAP32, /** @type {!Uint32Array} */HEAPU32, /** @type {!Float32Array} */HEAPF32, /** @type {!Float64Array} */HEAPF64;
+
+// include: runtime_shared.js
+function updateMemoryViews() {
+  var b = wasmMemory.buffer;
+  Module["HEAP8"] = HEAP8 = new Int8Array(b);
+  Module["HEAP16"] = HEAP16 = new Int16Array(b);
+  Module["HEAPU8"] = HEAPU8 = new Uint8Array(b);
+  Module["HEAPU16"] = HEAPU16 = new Uint16Array(b);
+  Module["HEAP32"] = HEAP32 = new Int32Array(b);
+  Module["HEAPU32"] = HEAPU32 = new Uint32Array(b);
+  Module["HEAPF32"] = HEAPF32 = new Float32Array(b);
+  Module["HEAPF64"] = HEAPF64 = new Float64Array(b);
+}
+
+// end include: runtime_shared.js
+// include: runtime_stack_check.js
+// end include: runtime_stack_check.js
+var __ATPRERUN__ = [];
+
+// functions called before the runtime is initialized
+var __ATINIT__ = [];
+
+// functions called during shutdown
+var __ATPOSTRUN__ = [];
+
+// functions called after the main() is called
+var runtimeInitialized = false;
+function preRun() {
+  if (Module["preRun"]) {
+    if (typeof Module["preRun"] == "function") Module["preRun"] = [Module["preRun"]];
+    while (Module["preRun"].length) {
+      addOnPreRun(Module["preRun"].shift());
+    }
+  }
+  callRuntimeCallbacks(__ATPRERUN__);
+}
+function initRuntime() {
+  runtimeInitialized = true;
+  if (!Module["noFSInit"] && !FS.initialized) FS.init();
+  FS.ignorePermissions = false;
+  TTY.init();
+  callRuntimeCallbacks(__ATINIT__);
+}
+function postRun() {
+  if (Module["postRun"]) {
+    if (typeof Module["postRun"] == "function") Module["postRun"] = [Module["postRun"]];
+    while (Module["postRun"].length) {
+      addOnPostRun(Module["postRun"].shift());
+    }
+  }
+  callRuntimeCallbacks(__ATPOSTRUN__);
+}
+function addOnPreRun(cb) {
+  __ATPRERUN__.unshift(cb);
+}
+function addOnInit(cb) {
+  __ATINIT__.unshift(cb);
+}
+function addOnPostRun(cb) {
+  __ATPOSTRUN__.unshift(cb);
+}
+
+// include: runtime_math.js
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/imul
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/fround
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/clz32
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/trunc
+// end include: runtime_math.js
+// A counter of dependencies for calling run(). If we need to
+// do asynchronous work before running, increment this and
+// decrement it. Incrementing must happen in a place like
+// Module.preRun (used by emcc to add file preloading).
+// Note that you can add dependencies in preRun, even though
+// it happens right before run - run will be postponed until
+// the dependencies are met.
+var runDependencies = 0;
+var dependenciesFulfilled = null;
+
+// overridden to take different actions when all run dependencies are fulfilled
+function getUniqueRunDependency(id) {
+  return id;
+}
+function addRunDependency(id) {
+  var _Module$monitorRunDep;
+  runDependencies++;
+  (_Module$monitorRunDep = Module["monitorRunDependencies"]) === null || _Module$monitorRunDep === void 0 || _Module$monitorRunDep.call(Module, runDependencies);
+}
+function removeRunDependency(id) {
+  var _Module$monitorRunDep2;
+  runDependencies--;
+  (_Module$monitorRunDep2 = Module["monitorRunDependencies"]) === null || _Module$monitorRunDep2 === void 0 || _Module$monitorRunDep2.call(Module, runDependencies);
+  if (runDependencies == 0) {
+    if (dependenciesFulfilled) {
+      var callback = dependenciesFulfilled;
+      dependenciesFulfilled = null;
+      callback();
+    }
+  }
+}
+
+/** @param {string|number=} what */
+function abort(what) {
+  var _Module$onAbort;
+  (_Module$onAbort = Module["onAbort"]) === null || _Module$onAbort === void 0 || _Module$onAbort.call(Module, what);
+  what = "Aborted(" + what + ")";
+  // TODO(sbc): Should we remove printing and leave it up to whoever
+  // catches the exception?
+  err(what);
+  ABORT = true;
+  what += ". Build with -sASSERTIONS for more info.";
+  // Use a wasm runtime error, because a JS error might be seen as a foreign
+  // exception, which means we'd run destructors on it. We need the error to
+  // simply make the program stop.
+  // FIXME This approach does not work in Wasm EH because it currently does not assume
+  // all RuntimeErrors are from traps; it decides whether a RuntimeError is from
+  // a trap or not based on a hidden field within the object. So at the moment
+  // we don't have a way of throwing a wasm trap from JS. TODO Make a JS API that
+  // allows this in the wasm spec.
+  // Suppress closure compiler warning here. Closure compiler's builtin extern
+  // definition for WebAssembly.RuntimeError claims it takes no arguments even
+  // though it can.
+  // TODO(https://github.com/google/closure-compiler/pull/3913): Remove if/when upstream closure gets fixed.
+  /** @suppress {checkTypes} */
+  var e = new WebAssembly.RuntimeError(what);
+  // Throw the error whether or not MODULARIZE is set because abort is used
+  // in code paths apart from instantiation where an exception is expected
+  // to be thrown when abort is called.
+  throw e;
+}
+
+// include: memoryprofiler.js
+// end include: memoryprofiler.js
+// include: URIUtils.js
+// Prefix of data URIs emitted by SINGLE_FILE and related options.
+var dataURIPrefix = "data:application/octet-stream;base64,";
+
+/**
+ * Indicates whether filename is a base64 data URI.
+ * @noinline
+ */
+var isDataURI = filename => filename.startsWith(dataURIPrefix);
+
+// end include: URIUtils.js
+// include: runtime_exceptions.js
+// end include: runtime_exceptions.js
+function findWasmBinary() {
+  var f = "qrtool.wx.wasm";
+  if (!isDataURI(f)) {
+    return locateFile(f);
+  }
+  return f;
+}
+var wasmBinaryFile;
+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 we don't have the binary yet, load it asynchronously using readAsync.
+  if (!wasmBinary) {
+    // Fetch the binary using readAsync
+    try {
+      var response = await readAsync(binaryFile);
+      return new Uint8Array(response);
+    } catch {}
+  }
+  // Otherwise, getBinarySync should be able to get it synchronously
+  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 && typeof WebAssembly.instantiateStreaming == "function" && !isDataURI(binaryFile) && typeof fetch == "function") {
+    try {
+      var response = fetch(binaryFile, {
+        credentials: "same-origin"
+      });
+      var instantiationResult = await WebAssembly.instantiateStreaming(response, imports);
+      return instantiationResult;
+    } catch (reason) {
+      // We expect the most common failure cause to be a bad MIME type for the binary,
+      // in which case falling back to ArrayBuffer instantiation should work.
+      err(`wasm streaming compile failed: ${reason}`);
+      err("falling back to ArrayBuffer instantiation");
+    }
+  }
+  return instantiateArrayBuffer(binaryFile, imports);
+}
+function getWasmImports() {
+  // prepare imports
+  return {
+    "a": wasmImports
+  };
+}
+
+// Create the wasm instance.
+// Receives the wasm imports, returns the exports.
+async function createWasm() {
+  var _wasmBinaryFile;
+  // Load the wasm module and create an instance of using native support in the JS engine.
+  // handle a generated wasm instance, receiving its exports and
+  // performing other necessary setup
+  /** @param {WebAssembly.Module=} module*/
+  function receiveInstance(instance, module) {
+    wasmExports = instance.exports;
+    wasmMemory = wasmExports["Rb"];
+    updateMemoryViews();
+    wasmTable = wasmExports["Ub"];
+    addOnInit(wasmExports["Sb"]);
+    removeRunDependency("wasm-instantiate");
+    return wasmExports;
+  }
+  // wait for the pthread pool (if any)
+  addRunDependency("wasm-instantiate");
+  // Prefer streaming instantiation if available.
+  function receiveInstantiationResult(result) {
+    // 'result' is a ResultObject object which has both the module and instance.
+    // receiveInstance() will swap in the exports (to Module.asm) so they can be called
+    // TODO: Due to Closure regression https://github.com/google/closure-compiler/issues/3193, the above line no longer optimizes out down to the following line.
+    // When the regression is fixed, can restore the above PTHREADS-enabled path.
+    receiveInstance(result["instance"]);
+  }
+  var info = getWasmImports();
+  // User shell pages can write their own Module.instantiateWasm = function(imports, successCallback) callback
+  // to manually instantiate the Wasm module themselves. This allows pages to
+  // run the instantiation parallel to any other async startup actions they are
+  // performing.
+  // Also pthreads and wasm workers initialize the wasm instance through this
+  // path.
+  if (Module["instantiateWasm"]) {
+    try {
+      return Module["instantiateWasm"](info, receiveInstance);
+    } catch (e) {
+      err(`Module.instantiateWasm callback failed with error: ${e}`);
+      return false;
+    }
+  }
+  (_wasmBinaryFile = wasmBinaryFile) !== null && _wasmBinaryFile !== void 0 ? _wasmBinaryFile : wasmBinaryFile = findWasmBinary();
+  var result = await instantiateAsync(wasmBinary, wasmBinaryFile, info);
+  receiveInstantiationResult(result);
+  return result;
+}
+
+// Globals used by JS i64 conversions (see makeSetValue)
+var tempDouble;
+var tempI64;
+
+// include: runtime_debug.js
+// end include: runtime_debug.js
+// === Body ===
+// end include: preamble.js
+class ExitStatus {
+  constructor(status) {
+    _defineProperty(this, "name", "ExitStatus");
+    this.message = `Program terminated with exit(${status})`;
+    this.status = status;
+  }
+}
+var callRuntimeCallbacks = callbacks => {
+  while (callbacks.length > 0) {
+    // Pass the module as the first argument.
+    callbacks.shift()(Module);
+  }
+};
+var noExitRuntime = Module["noExitRuntime"] || true;
+var stackRestore = val => __emscripten_stack_restore(val);
+var stackSave = () => _emscripten_stack_get_current();
+var exceptionCaught = [];
+var uncaughtExceptionCount = 0;
+var ___cxa_begin_catch = ptr => {
+  var info = new ExceptionInfo(ptr);
+  if (!info.get_caught()) {
+    info.set_caught(true);
+    uncaughtExceptionCount--;
+  }
+  info.set_rethrown(false);
+  exceptionCaught.push(info);
+  ___cxa_increment_exception_refcount(ptr);
+  return ___cxa_get_exception_ptr(ptr);
+};
+var ___cxa_current_primary_exception = () => {
+  if (!exceptionCaught.length) {
+    return 0;
+  }
+  var info = exceptionCaught[exceptionCaught.length - 1];
+  ___cxa_increment_exception_refcount(info.excPtr);
+  return info.excPtr;
+};
+var exceptionLast = 0;
+var ___cxa_end_catch = () => {
+  // Clear state flag.
+  _setThrew(0, 0);
+  // Call destructor if one is registered then clear it.
+  var info = exceptionCaught.pop();
+  ___cxa_decrement_exception_refcount(info.excPtr);
+  exceptionLast = 0;
+};
+
+// XXX in decRef?
+class ExceptionInfo {
+  // excPtr - Thrown object pointer to wrap. Metadata pointer is calculated from it.
+  constructor(excPtr) {
+    this.excPtr = excPtr;
+    this.ptr = excPtr - 24;
+  }
+  set_type(type) {
+    HEAPU32[this.ptr + 4 >> 2] = type;
+  }
+  get_type() {
+    return HEAPU32[this.ptr + 4 >> 2];
+  }
+  set_destructor(destructor) {
+    HEAPU32[this.ptr + 8 >> 2] = destructor;
+  }
+  get_destructor() {
+    return HEAPU32[this.ptr + 8 >> 2];
+  }
+  set_caught(caught) {
+    caught = caught ? 1 : 0;
+    HEAP8[this.ptr + 12] = caught;
+  }
+  get_caught() {
+    return HEAP8[this.ptr + 12] != 0;
+  }
+  set_rethrown(rethrown) {
+    rethrown = rethrown ? 1 : 0;
+    HEAP8[this.ptr + 13] = rethrown;
+  }
+  get_rethrown() {
+    return HEAP8[this.ptr + 13] != 0;
+  }
+  // Initialize native structure fields. Should be called once after allocated.
+  init(type, destructor) {
+    this.set_adjusted_ptr(0);
+    this.set_type(type);
+    this.set_destructor(destructor);
+  }
+  set_adjusted_ptr(adjustedPtr) {
+    HEAPU32[this.ptr + 16 >> 2] = adjustedPtr;
+  }
+  get_adjusted_ptr() {
+    return HEAPU32[this.ptr + 16 >> 2];
+  }
+}
+var ___resumeException = ptr => {
+  if (!exceptionLast) {
+    exceptionLast = ptr;
+  }
+  throw exceptionLast;
+};
+var setTempRet0 = val => __emscripten_tempret_set(val);
+var findMatchingCatch = args => {
+  var thrown = exceptionLast;
+  if (!thrown) {
+    // just pass through the null ptr
+    setTempRet0(0);
+    return 0;
+  }
+  var info = new ExceptionInfo(thrown);
+  info.set_adjusted_ptr(thrown);
+  var thrownType = info.get_type();
+  if (!thrownType) {
+    // just pass through the thrown ptr
+    setTempRet0(0);
+    return thrown;
+  }
+  // can_catch receives a **, add indirection
+  // The different catch blocks are denoted by different types.
+  // Due to inheritance, those types may not precisely match the
+  // type of the thrown object. Find one which matches, and
+  // return the type of the catch block which should be called.
+  for (var caughtType of args) {
+    if (caughtType === 0 || caughtType === thrownType) {
+      // Catch all clause matched or exactly the same type is caught
+      break;
+    }
+    var adjusted_ptr_addr = info.ptr + 16;
+    if (___cxa_can_catch(caughtType, thrownType, adjusted_ptr_addr)) {
+      setTempRet0(caughtType);
+      return thrown;
+    }
+  }
+  setTempRet0(thrownType);
+  return thrown;
+};
+var ___cxa_find_matching_catch_2 = () => findMatchingCatch([]);
+var ___cxa_find_matching_catch_3 = arg0 => findMatchingCatch([arg0]);
+var ___cxa_find_matching_catch_4 = (arg0, arg1) => findMatchingCatch([arg0, arg1]);
+var ___cxa_rethrow = () => {
+  var info = exceptionCaught.pop();
+  if (!info) {
+    abort("no exception to throw");
+  }
+  var ptr = info.excPtr;
+  if (!info.get_rethrown()) {
+    // Only pop if the corresponding push was through rethrow_primary_exception
+    exceptionCaught.push(info);
+    info.set_rethrown(true);
+    info.set_caught(false);
+    uncaughtExceptionCount++;
+  }
+  exceptionLast = ptr;
+  throw exceptionLast;
+};
+var ___cxa_rethrow_primary_exception = ptr => {
+  if (!ptr) return;
+  var info = new ExceptionInfo(ptr);
+  exceptionCaught.push(info);
+  info.set_rethrown(true);
+  ___cxa_rethrow();
+};
+var ___cxa_throw = (ptr, type, destructor) => {
+  var info = new ExceptionInfo(ptr);
+  // Initialize ExceptionInfo content after it was allocated in __cxa_allocate_exception.
+  info.init(type, destructor);
+  exceptionLast = ptr;
+  uncaughtExceptionCount++;
+  throw exceptionLast;
+};
+var ___cxa_uncaught_exceptions = () => uncaughtExceptionCount;
+
+/** @suppress {duplicate } */
+var syscallGetVarargI = () => {
+  // the `+` prepended here is necessary to convince the JSCompiler that varargs is indeed a number.
+  var ret = HEAP32[+SYSCALLS.varargs >> 2];
+  SYSCALLS.varargs += 4;
+  return ret;
+};
+var syscallGetVarargP = syscallGetVarargI;
+var PATH = {
+  isAbs: path => path.charAt(0) === "/",
+  splitPath: filename => {
+    var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
+    return splitPathRe.exec(filename).slice(1);
+  },
+  normalizeArray: (parts, allowAboveRoot) => {
+    // if the path tries to go above the root, `up` ends up > 0
+    var up = 0;
+    for (var i = parts.length - 1; i >= 0; i--) {
+      var last = parts[i];
+      if (last === ".") {
+        parts.splice(i, 1);
+      } else if (last === "..") {
+        parts.splice(i, 1);
+        up++;
+      } else if (up) {
+        parts.splice(i, 1);
+        up--;
+      }
+    }
+    // if the path is allowed to go above the root, restore leading ..s
+    if (allowAboveRoot) {
+      for (; up; up--) {
+        parts.unshift("..");
+      }
+    }
+    return parts;
+  },
+  normalize: path => {
+    var isAbsolute = PATH.isAbs(path),
+      trailingSlash = path.substr(-1) === "/";
+    // Normalize the path
+    path = PATH.normalizeArray(path.split("/").filter(p => !!p), !isAbsolute).join("/");
+    if (!path && !isAbsolute) {
+      path = ".";
+    }
+    if (path && trailingSlash) {
+      path += "/";
+    }
+    return (isAbsolute ? "/" : "") + path;
+  },
+  dirname: path => {
+    var result = PATH.splitPath(path),
+      root = result[0],
+      dir = result[1];
+    if (!root && !dir) {
+      // No dirname whatsoever
+      return ".";
+    }
+    if (dir) {
+      // It has a dirname, strip trailing slash
+      dir = dir.substr(0, dir.length - 1);
+    }
+    return root + dir;
+  },
+  basename: path => {
+    // EMSCRIPTEN return '/'' for '/', not an empty string
+    if (path === "/") return "/";
+    path = PATH.normalize(path);
+    path = path.replace(/\/$/, "");
+    var lastSlash = path.lastIndexOf("/");
+    if (lastSlash === -1) return path;
+    return path.substr(lastSlash + 1);
+  },
+  join: function () {
+    for (var _len = arguments.length, paths = new Array(_len), _key = 0; _key < _len; _key++) {
+      paths[_key] = arguments[_key];
+    }
+    return PATH.normalize(paths.join("/"));
+  },
+  join2: (l, r) => PATH.normalize(l + "/" + r)
+};
+var initRandomFill = () => {
+  if (typeof crypto == "object" && typeof crypto["getRandomValues"] == "function") {
+    // for modern web browsers
+    return view => crypto.getRandomValues(view);
+  } else
+    // we couldn't find a proper implementation, as Math.random() is not suitable for /dev/random, see emscripten-core/emscripten/pull/7096
+    abort("initRandomDevice");
+};
+var randomFill = view => (randomFill = initRandomFill())(view);
+var PATH_FS = {
+  resolve: function () {
+    var resolvedPath = "",
+      resolvedAbsolute = false;
+    for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {
+      var path = i >= 0 ? i < 0 || arguments.length <= i ? undefined : arguments[i] : FS.cwd();
+      // Skip empty and invalid entries
+      if (typeof path != "string") {
+        throw new TypeError("Arguments to path.resolve must be strings");
+      } else if (!path) {
+        return "";
+      }
+      // an invalid portion invalidates the whole thing
+      resolvedPath = path + "/" + resolvedPath;
+      resolvedAbsolute = PATH.isAbs(path);
+    }
+    // At this point the path should be resolved to a full absolute path, but
+    // handle relative paths to be safe (might happen when process.cwd() fails)
+    resolvedPath = PATH.normalizeArray(resolvedPath.split("/").filter(p => !!p), !resolvedAbsolute).join("/");
+    return (resolvedAbsolute ? "/" : "") + resolvedPath || ".";
+  },
+  relative: (from, to) => {
+    from = PATH_FS.resolve(from).substr(1);
+    to = PATH_FS.resolve(to).substr(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 = typeof TextDecoder != "undefined" ? new TextDecoder() : undefined;
+
+/**
+     * Given a pointer 'idx' to a null-terminated UTF8-encoded string in the given
+     * array that contains uint8 values, returns a copy of that string as a
+     * Javascript String object.
+     * heapOrArray is either a regular array, or a JavaScript typed array view.
+     * @param {number=} idx
+     * @param {number=} maxBytesToRead
+     * @return {string}
+     */
+var UTF8ArrayToString = function (heapOrArray) {
+  let idx = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
+  let maxBytesToRead = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : NaN;
+  var endIdx = idx + maxBytesToRead;
+  var endPtr = idx;
+  // TextDecoder needs to know the byte length in advance, it doesn't stop on
+  // null terminator by itself.  Also, use the length info to avoid running tiny
+  // strings through TextDecoder, since .subarray() allocates garbage.
+  // (As a tiny code save trick, compare endPtr against endIdx using a negation,
+  // so that undefined/NaN means Infinity)
+  while (heapOrArray[endPtr] && !(endPtr >= endIdx)) ++endPtr;
+  if (endPtr - idx > 16 && heapOrArray.buffer && UTF8Decoder) {
+    return UTF8Decoder.decode(heapOrArray.subarray(idx, endPtr));
+  }
+  var str = "";
+  // If building with TextDecoder, we have already computed the string length
+  // above, so test loop end condition against that
+  while (idx < endPtr) {
+    // For UTF8 byte structure, see:
+    // http://en.wikipedia.org/wiki/UTF-8#Description
+    // https://www.ietf.org/rfc/rfc2279.txt
+    // https://tools.ietf.org/html/rfc3629
+    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) {
+    // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code
+    // unit, not a Unicode code point of the character! So decode
+    // UTF16->UTF32->UTF8.
+    // See http://unicode.org/faq/utf_bom.html#utf16-3
+    var c = str.charCodeAt(i);
+    // possibly a lead surrogate
+    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) => {
+  // Parameter maxBytesToWrite is not optional. Negative values, 0, null,
+  // undefined and false each don't write out any bytes.
+  if (!(maxBytesToWrite > 0)) return 0;
+  var startIdx = outIdx;
+  var endIdx = outIdx + maxBytesToWrite - 1;
+  // -1 for string null terminator.
+  for (var i = 0; i < str.length; ++i) {
+    // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code
+    // unit, not a Unicode code point of the character! So decode
+    // UTF16->UTF32->UTF8.
+    // See http://unicode.org/faq/utf_bom.html#utf16-3
+    // For UTF8 byte structure, see http://en.wikipedia.org/wiki/UTF-8#Description
+    // and https://www.ietf.org/rfc/rfc2279.txt
+    // and https://tools.ietf.org/html/rfc3629
+    var u = str.charCodeAt(i);
+    // possibly a lead surrogate
+    if (u >= 55296 && u <= 57343) {
+      var u1 = str.charCodeAt(++i);
+      u = 65536 + ((u & 1023) << 10) | u1 & 1023;
+    }
+    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;
+    }
+  }
+  // Null-terminate the pointer to the buffer.
+  heap[outIdx] = 0;
+  return outIdx - startIdx;
+};
+
+/** @type {function(string, boolean=, number=)} */
+function 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 (typeof window != "undefined" && typeof window.prompt == "function") {
+      // Browser.
+      result = window.prompt("Input: ");
+      // returns null on cancel
+      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() {},
+  // https://github.com/emscripten-core/emscripten/pull/1555
+  // if (ENVIRONMENT_IS_NODE) {
+  //   // currently, FS.init does not distinguish if process.stdin is a file or TTY
+  //   // device, it always assumes it's a TTY device. because of this, we're forcing
+  //   // process.stdin to UTF8 encoding to at least make stdin reading compatible
+  //   // with text files until FS.init can be refactored.
+  //   process.stdin.setEncoding('utf8');
+  // }
+  shutdown() {},
+  // https://github.com/emscripten-core/emscripten/pull/1555
+  // if (ENVIRONMENT_IS_NODE) {
+  //   // inolen: any idea as to why node -e 'process.stdin.read()' wouldn't exit immediately (with process.stdin being a tty)?
+  //   // isaacs: because now it's reading from the stream, you've expressed interest in it, so that read() kicks off a _read() which creates a ReadReq operation
+  //   // inolen: I thought read() in that case was a synchronous operation that just grabbed some amount of buffered data if it exists?
+  //   // isaacs: it is. but it also triggers a _read() call, which calls readStart() on the handle
+  //   // isaacs: do process.stdin.pause() and i'd think it'd probably close the pending call
+  //   process.stdin.pause();
+  // }
+  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) {
+      // flush any pending line data
+      stream.tty.ops.fsync(stream.tty);
+    },
+    fsync(stream) {
+      stream.tty.ops.fsync(stream.tty);
+    },
+    read(stream, buffer, offset, length, pos) {
+      /* ignored */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);
+      }
+    },
+    // val == 0 would cut text output off in the middle.
+    fsync(tty) {
+      if (tty.output && tty.output.length > 0) {
+        out(UTF8ArrayToString(tty.output));
+        tty.output = [];
+      }
+    },
+    ioctl_tcgets(tty) {
+      // typical setting
+      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) {
+      // currently just ignore
+      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 && tty.output.length > 0) {
+        err(UTF8ArrayToString(tty.output));
+        tty.output = [];
+      }
+    }
+  }
+};
+var alignMemory = (size, alignment) => Math.ceil(size / alignment) * alignment;
+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)) {
+      // no supported
+      throw new FS.ErrnoError(63);
+    }
+    MEMFS.ops_table || (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,
+          allocate: MEMFS.stream_ops.allocate,
+          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;
+      // The actual number of bytes used in the typed array, as opposed to contents.length which gives the whole capacity.
+      // When the byte data of the file is populated, this will point to either a typed array, or a normal JS array. Typed arrays are preferred
+      // for performance, and used by default. However, typed arrays are not resizable like normal JS arrays are, so there is a small disk size
+      // penalty involved for appending file writes that continuously grow a file similar to std::vector capacity vs used -scheme.
+      node.contents = null;
+    } 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();
+    // add the new node to the parent
+    if (parent) {
+      parent.contents[name] = node;
+      parent.atime = parent.mtime = parent.ctime = node.atime;
+    }
+    return node;
+  },
+  getFileDataAsTypedArray(node) {
+    if (!node.contents) return new Uint8Array(0);
+    if (node.contents.subarray) return node.contents.subarray(0, node.usedBytes);
+    // Make sure to not return excess unused bytes.
+    return new Uint8Array(node.contents);
+  },
+  expandFileStorage(node, newCapacity) {
+    var prevCapacity = node.contents ? node.contents.length : 0;
+    if (prevCapacity >= newCapacity) return;
+    // No need to expand, the storage was already large enough.
+    // Don't expand strictly to the given requested limit if it's only a very small increase, but instead geometrically grow capacity.
+    // For small filesizes (<1MB), perform size*2 geometric increase, but for large sizes, do a much more conservative size*1.125 increase to
+    // avoid overshooting the allocation cap by a very large margin.
+    var CAPACITY_DOUBLING_MAX = 1024 * 1024;
+    newCapacity = Math.max(newCapacity, prevCapacity * (prevCapacity < CAPACITY_DOUBLING_MAX ? 2 : 1.125) >>> 0);
+    if (prevCapacity != 0) newCapacity = Math.max(newCapacity, 256);
+    // At minimum allocate 256b for each file when expanding.
+    var oldContents = node.contents;
+    node.contents = new Uint8Array(newCapacity);
+    // Allocate new storage.
+    if (node.usedBytes > 0) node.contents.set(oldContents.subarray(0, node.usedBytes), 0);
+  },
+  // Copy old data over to the new storage.
+  resizeFileStorage(node, newSize) {
+    if (node.usedBytes == newSize) return;
+    if (newSize == 0) {
+      node.contents = null;
+      // Fully decommit when requesting a resize to zero.
+      node.usedBytes = 0;
+    } else {
+      var oldContents = node.contents;
+      node.contents = new Uint8Array(newSize);
+      // Allocate new storage.
+      if (oldContents) {
+        node.contents.set(oldContents.subarray(0, Math.min(newSize, node.usedBytes)));
+      }
+      // Copy old data over to the new storage.
+      node.usedBytes = newSize;
+    }
+  },
+  node_ops: {
+    getattr(node) {
+      var attr = {};
+      // device numbers reuse inode numbers.
+      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);
+      // NOTE: In our implementation, st_blocks = Math.ceil(st_size/st_blksize),
+      //       but this is not required by the standard.
+      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]) {
+          node[key] = attr[key];
+        }
+      }
+      if (attr.size !== undefined) {
+        MEMFS.resizeFileStorage(node, attr.size);
+      }
+    },
+    lookup(parent, name) {
+      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)) {
+          // if we're overwriting a directory at new_name, make sure it's empty.
+          for (var i in new_node.contents) {
+            throw new FS.ErrnoError(55);
+          }
+        }
+        FS.hashRemoveNode(new_node);
+      }
+      // do the internal rewiring
+      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);
+      if (size > 8 && contents.subarray) {
+        // non-trivial, and typed array
+        buffer.set(contents.subarray(position, position + size), offset);
+      } else {
+        for (var i = 0; i < size; i++) buffer[offset + i] = contents[position + i];
+      }
+      return size;
+    },
+    write(stream, buffer, offset, length, position, canOwn) {
+      // If the buffer is located in main memory (HEAP), and if
+      // memory can grow, we can't hold on to references of the
+      // memory buffer, as they may get invalidated. That means we
+      // need to do copy its contents.
+      if (buffer.buffer === HEAP8.buffer) {
+        canOwn = false;
+      }
+      if (!length) return 0;
+      var node = stream.node;
+      node.mtime = node.ctime = Date.now();
+      if (buffer.subarray && (!node.contents || node.contents.subarray)) {
+        // This write is from a typed array to a typed array?
+        if (canOwn) {
+          node.contents = buffer.subarray(offset, offset + length);
+          node.usedBytes = length;
+          return length;
+        } else if (node.usedBytes === 0 && position === 0) {
+          // If this is a simple first write to an empty file, do a fast set since we don't need to care about old data.
+          node.contents = buffer.slice(offset, offset + length);
+          node.usedBytes = length;
+          return length;
+        } else if (position + length <= node.usedBytes) {
+          // Writing to an already allocated and used subrange of the file?
+          node.contents.set(buffer.subarray(offset, offset + length), position);
+          return length;
+        }
+      }
+      // Appending to an existing file and we need to reallocate, or source data did not come as a typed array.
+      MEMFS.expandFileStorage(node, position + length);
+      if (node.contents.subarray && buffer.subarray) {
+        // Use typed array write which is available.
+        node.contents.set(buffer.subarray(offset, offset + length), position);
+      } else {
+        for (var i = 0; i < length; i++) {
+          node.contents[position + i] = buffer[offset + i];
+        }
+      }
+      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;
+    },
+    allocate(stream, offset, length) {
+      MEMFS.expandFileStorage(stream.node, offset + length);
+      stream.node.usedBytes = Math.max(stream.node.usedBytes, offset + length);
+    },
+    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;
+      // Only make a new copy when MAP_PRIVATE is specified.
+      if (!(flags & 2) && contents && contents.buffer === HEAP8.buffer) {
+        // We can't emulate MAP_SHARED when the file is not backed by the
+        // buffer we're mapping to (e.g. the HEAP buffer).
+        allocated = false;
+        ptr = contents.byteOffset;
+      } else {
+        allocated = true;
+        ptr = mmapAlloc(length);
+        if (!ptr) {
+          throw new FS.ErrnoError(48);
+        }
+        if (contents) {
+          // Try to avoid unnecessary slices.
+          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);
+      // should we check if bytesWritten and length are the same?
+      return 0;
+    }
+  }
+};
+var asyncLoad = async url => {
+  var arrayBuffer = await readAsync(url);
+  return new Uint8Array(arrayBuffer);
+};
+var FS_createDataFile = (parent, name, fileData, canRead, canWrite, canOwn) => {
+  FS.createDataFile(parent, name, fileData, canRead, canWrite, canOwn);
+};
+var preloadPlugins = Module["preloadPlugins"] || [];
+var FS_handledByPreloadPlugin = (byteArray, fullname, finish, onerror) => {
+  // Ensure plugins are ready.
+  if (typeof Browser != "undefined") Browser.init();
+  var handled = false;
+  preloadPlugins.forEach(plugin => {
+    if (handled) return;
+    if (plugin["canHandle"](fullname)) {
+      plugin["handle"](byteArray, fullname, finish, onerror);
+      handled = true;
+    }
+  });
+  return handled;
+};
+var FS_createPreloadedFile = (parent, name, url, canRead, canWrite, onload, onerror, dontCreateFile, canOwn, preFinish) => {
+  // TODO we should allow people to just pass in a complete filename instead
+  // of parent and name being that we just join them anyways
+  var fullname = name ? PATH_FS.resolve(PATH.join2(parent, name)) : parent;
+  var dep = getUniqueRunDependency(`cp ${fullname}`);
+  // might have several active requests for the same fullname
+  function processData(byteArray) {
+    function finish(byteArray) {
+      preFinish === null || preFinish === void 0 || preFinish();
+      if (!dontCreateFile) {
+        FS_createDataFile(parent, name, byteArray, canRead, canWrite, canOwn);
+      }
+      onload === null || onload === void 0 || onload();
+      removeRunDependency(dep);
+    }
+    if (FS_handledByPreloadPlugin(byteArray, fullname, finish, () => {
+      onerror === null || onerror === void 0 || onerror();
+      removeRunDependency(dep);
+    })) {
+      return;
+    }
+    finish(byteArray);
+  }
+  addRunDependency(dep);
+  if (typeof url == "string") {
+    asyncLoad(url).then(processData, onerror);
+  } else {
+    processData(url);
+  }
+};
+var FS_modeStringToFlags = 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_getMode = (canRead, canWrite) => {
+  var mode = 0;
+  if (canRead) mode |= 292 | 73;
+  if (canWrite) mode |= 146;
+  return mode;
+};
+var FS = {
+  root: null,
+  mounts: [],
+  devices: {},
+  streams: [],
+  nextInode: 1,
+  nameTable: null,
+  currentPath: "/",
+  initialized: false,
+  ignorePermissions: true,
+  ErrnoError: class ErrnoError {
+    // We set the `name` property to be able to identify `FS.ErrnoError`
+    // - the `name` is a standard ECMA-262 property of error objects. Kind of good to have it anyway.
+    // - when using PROXYFS, an error can come from an underlying FS
+    // as different FS objects have their own FS.ErrnoError each,
+    // the test `err instanceof FS.ErrnoError` won't detect an error coming from another filesystem, causing bugs.
+    // we'll use the reliable test `err.name == "ErrnoError"` instead
+    constructor(errno) {
+      _defineProperty(this, "name", "ErrnoError");
+      this.errno = errno;
+    }
+  },
+  filesystems: null,
+  syncFSRequests: 0,
+  readFiles: {},
+  FSStream: class FSStream {
+    constructor() {
+      _defineProperty(this, "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 FSNode {
+    constructor(parent, name, mode, rdev) {
+      _defineProperty(this, "node_ops", {});
+      _defineProperty(this, "stream_ops", {});
+      _defineProperty(this, "readMode", 292 | 73);
+      _defineProperty(this, "writeMode", 146);
+      _defineProperty(this, "mounted", null);
+      if (!parent) {
+        parent = this;
+      }
+      // root node sets parent to itself
+      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) {
+    var _opts$follow_mount;
+    let opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+    if (!path) return {
+      path: "",
+      node: null
+    };
+    (_opts$follow_mount = opts.follow_mount) !== null && _opts$follow_mount !== void 0 ? _opts$follow_mount : opts.follow_mount = true;
+    if (!PATH.isAbs(path)) {
+      path = FS.cwd() + "/" + path;
+    }
+    // limit max consecutive symlinks to 40 (SYMLOOP_MAX).
+    linkloop: for (var nlinks = 0; nlinks < 40; nlinks++) {
+      // split the absolute path
+      var parts = path.split("/").filter(p => !!p && p !== ".");
+      // start at the root
+      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) {
+          // stop resolving
+          break;
+        }
+        if (parts[i] === "..") {
+          current_path = PATH.dirname(current_path);
+          current = current.parent;
+          continue;
+        }
+        current_path = PATH.join2(current_path, parts[i]);
+        try {
+          current = FS.lookupNode(current, parts[i]);
+        } catch (e) {
+          // if noent_okay is true, suppress a ENOENT in the last component
+          // and return an object with an undefined node. This is needed for
+          // resolving symlinks in the path when creating a file.
+          if ((e === null || e === void 0 ? void 0 : e.errno) === 44 && islast && opts.noent_okay) {
+            return {
+              path: current_path
+            };
+          }
+          throw e;
+        }
+        // jump to the mount's root node if this is a mountpoint
+        if (FS.isMountpoint(current) && (!islast || opts.follow_mount)) {
+          current = current.mounted.root;
+        }
+        // by default, lookupPath will not follow a symlink if it is the final path component.
+        // setting opts.follow = true will override this behavior.
+        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;
+      }
+    }
+    // if we failed to find it in the cache, call into the VFS
+    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;
+    }
+    // return 0 if any user, group or owner bits are set.
+    if (perms.includes("r") && !(node.mode & 292)) {
+      return 2;
+    } else if (perms.includes("w") && !(node.mode & 146)) {
+      return 2;
+    } else 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;
+    } else if (FS.isDir(node.mode)) {
+      if (FS.flagsToPermissionString(flags) !== "r" ||
+      // opening for write
+      flags & 512) {
+        // TODO: check for O_SEARCH? (== search for dir only)
+        return 31;
+      }
+    }
+    return FS.nodePermissions(node, FS.flagsToPermissionString(flags));
+  },
+  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) {
+    let fd = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : -1;
+    // clone it, so we can return an instance of FSStream
+    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) {
+    var _stream$stream_ops, _stream$stream_ops$du;
+    let fd = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : -1;
+    var stream = FS.createStream(origStream, fd);
+    (_stream$stream_ops = stream.stream_ops) === null || _stream$stream_ops === void 0 || (_stream$stream_ops$du = _stream$stream_ops.dup) === null || _stream$stream_ops$du === void 0 || _stream$stream_ops$du.call(_stream$stream_ops, stream);
+    return stream;
+  },
+  chrdev_stream_ops: {
+    open(stream) {
+      var _stream$stream_ops$op, _stream$stream_ops2;
+      var device = FS.getDevice(stream.node.rdev);
+      // override node's stream ops with the device's
+      stream.stream_ops = device.stream_ops;
+      // forward the open call
+      (_stream$stream_ops$op = (_stream$stream_ops2 = stream.stream_ops).open) === null || _stream$stream_ops$op === void 0 || _stream$stream_ops$op.call(_stream$stream_ops2, 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);
+      }
+    }
+    // sync all mounts
+    mounts.forEach(mount => {
+      if (!mount.type.syncfs) {
+        return done(null);
+      }
+      mount.type.syncfs(mount, populate, done);
+    });
+  },
+  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;
+      // use the absolute 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: []
+    };
+    // create a root node for the fs
+    var mountRoot = type.mount(mount);
+    mountRoot.mount = mount;
+    mount.root = mountRoot;
+    if (root) {
+      FS.root = mountRoot;
+    } else if (node) {
+      // set as a mountpoint
+      node.mounted = mount;
+      // add the new mount to the current mount's children
+      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);
+    }
+    // destroy the nodes for this mount, and all its child mounts
+    var node = lookup.node;
+    var mount = node.mounted;
+    var mounts = FS.getMounts(mount);
+    Object.keys(FS.nameTable).forEach(hash => {
+      var current = FS.nameTable[hash];
+      while (current) {
+        var next = current.name_next;
+        if (mounts.includes(current.mount)) {
+          FS.destroyNode(current);
+        }
+        current = next;
+      }
+    });
+    // no longer a mountpoint
+    node.mounted = null;
+    // remove this mount from the child mounts
+    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 || name === "." || name === "..") {
+      throw new FS.ErrnoError(28);
+    }
+    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) {
+    // NOTE: None of the defaults here are true. We're just returning safe and
+    //       sane values.
+    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
+    };
+    var parent = FS.lookupPath(path, {
+      follow: true
+    }).node;
+    if (parent !== null && parent !== void 0 && parent.node_ops.statfs) {
+      Object.assign(rtn, parent.node_ops.statfs(parent.mount.opts.root));
+    }
+    return rtn;
+  },
+  create(path) {
+    let mode = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 438;
+    mode &= 4095;
+    mode |= 32768;
+    return FS.mknod(path, mode, 0);
+  },
+  mkdir(path) {
+    let mode = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 511;
+    mode &= 511 | 512;
+    mode |= 16384;
+    return FS.mknod(path, mode, 0);
+  },
+  mkdirTree(path, mode) {
+    var dirs = path.split("/");
+    var d = "";
+    for (var i = 0; i < dirs.length; ++i) {
+      if (!dirs[i]) continue;
+      d += "/" + dirs[i];
+      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);
+    // parents must exist
+    var lookup, old_dir, new_dir;
+    // let the errors from non existent directories percolate up
+    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);
+    // need to be part of the same mount
+    if (old_dir.mount !== new_dir.mount) {
+      throw new FS.ErrnoError(75);
+    }
+    // source must exist
+    var old_node = FS.lookupNode(old_dir, old_name);
+    // old path should not be an ancestor of the new path
+    var relative = PATH_FS.relative(old_path, new_dirname);
+    if (relative.charAt(0) !== ".") {
+      throw new FS.ErrnoError(28);
+    }
+    // new path should not be an ancestor of the old path
+    relative = PATH_FS.relative(new_path, old_dirname);
+    if (relative.charAt(0) !== ".") {
+      throw new FS.ErrnoError(55);
+    }
+    // see if the new path already exists
+    var new_node;
+    try {
+      new_node = FS.lookupNode(new_dir, new_name);
+    } catch (e) {}
+    // early out if nothing needs to change
+    if (old_node === new_node) {
+      return;
+    }
+    // we'll need to delete the old entry
+    var isdir = FS.isDir(old_node.mode);
+    var errCode = FS.mayDelete(old_dir, old_name, isdir);
+    if (errCode) {
+      throw new FS.ErrnoError(errCode);
+    }
+    // need delete permissions if we'll be overwriting.
+    // need create permissions if new doesn't already exist.
+    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 we are going to change the parent, check write permissions
+    if (new_dir !== old_dir) {
+      errCode = FS.nodePermissions(old_dir, "w");
+      if (errCode) {
+        throw new FS.ErrnoError(errCode);
+      }
+    }
+    // remove the node from the lookup hash
+    FS.hashRemoveNode(old_node);
+    // do the underlying fs rename
+    try {
+      old_dir.node_ops.rename(old_node, new_dir, new_name);
+      // update old node (we do this here to avoid each backend
+      // needing to)
+      old_node.parent = new_dir;
+    } catch (e) {
+      throw e;
+    } finally {
+      // add the node back to the hash (in case node_ops.rename
+      // changed its name)
+      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;
+    if (!node.node_ops.readdir) {
+      throw new FS.ErrnoError(54);
+    }
+    return node.node_ops.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) {
+      // According to POSIX, we should map EISDIR to EPERM, but
+      // we instead do what Linux does (and we must, as we use
+      // the musl linux libc).
+      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;
+    if (!node) {
+      throw new FS.ErrnoError(44);
+    }
+    if (!node.node_ops.getattr) {
+      throw new FS.ErrnoError(63);
+    }
+    return node.node_ops.getattr(node);
+  },
+  lstat(path) {
+    return FS.stat(path, true);
+  },
+  chmod(path, mode, dontFollow) {
+    var node;
+    if (typeof path == "string") {
+      var lookup = FS.lookupPath(path, {
+        follow: !dontFollow
+      });
+      node = lookup.node;
+    } else {
+      node = path;
+    }
+    if (!node.node_ops.setattr) {
+      throw new FS.ErrnoError(63);
+    }
+    node.node_ops.setattr(node, {
+      mode: mode & 4095 | node.mode & ~4095,
+      ctime: Date.now()
+    });
+  },
+  lchmod(path, mode) {
+    FS.chmod(path, mode, true);
+  },
+  fchmod(fd, mode) {
+    var stream = FS.getStreamChecked(fd);
+    FS.chmod(stream.node, mode);
+  },
+  chown(path, uid, gid, dontFollow) {
+    var node;
+    if (typeof path == "string") {
+      var lookup = FS.lookupPath(path, {
+        follow: !dontFollow
+      });
+      node = lookup.node;
+    } else {
+      node = path;
+    }
+    if (!node.node_ops.setattr) {
+      throw new FS.ErrnoError(63);
+    }
+    node.node_ops.setattr(node, {
+      timestamp: Date.now()
+    });
+  },
+  // we ignore the uid / gid for now
+  lchown(path, uid, gid) {
+    FS.chown(path, uid, gid, true);
+  },
+  fchown(fd, uid, gid) {
+    var stream = FS.getStreamChecked(fd);
+    FS.chown(stream.node, uid, gid);
+  },
+  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;
+    }
+    if (!node.node_ops.setattr) {
+      throw new FS.ErrnoError(63);
+    }
+    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);
+    }
+    node.node_ops.setattr(node, {
+      size: len,
+      timestamp: Date.now()
+    });
+  },
+  ftruncate(fd, len) {
+    var stream = FS.getStreamChecked(fd);
+    if ((stream.flags & 2097155) === 0) {
+      throw new FS.ErrnoError(28);
+    }
+    FS.truncate(stream.node, len);
+  },
+  utime(path, atime, mtime) {
+    var lookup = FS.lookupPath(path, {
+      follow: true
+    });
+    var node = lookup.node;
+    node.node_ops.setattr(node, {
+      atime,
+      mtime
+    });
+  },
+  open(path, flags) {
+    let mode = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 438;
+    if (path === "") {
+      throw new FS.ErrnoError(44);
+    }
+    flags = typeof flags == "string" ? FS_modeStringToFlags(flags) : flags;
+    if (flags & 64) {
+      mode = mode & 4095 | 32768;
+    } else {
+      mode = 0;
+    }
+    var node;
+    if (typeof path == "object") {
+      node = path;
+    } else {
+      // noent_okay makes it so that if the final component of the path
+      // doesn't exist, lookupPath returns `node: undefined`. `path` will be
+      // updated to point to the target of all symlinks.
+      var lookup = FS.lookupPath(path, {
+        follow: !(flags & 131072),
+        noent_okay: true
+      });
+      node = lookup.node;
+      path = lookup.path;
+    }
+    // perhaps we need to create the node
+    var created = false;
+    if (flags & 64) {
+      if (node) {
+        // if O_CREAT and O_EXCL are set, error out if the node already exists
+        if (flags & 128) {
+          throw new FS.ErrnoError(20);
+        }
+      } else {
+        // node doesn't exist, try to create it
+        node = FS.mknod(path, mode, 0);
+        created = true;
+      }
+    }
+    if (!node) {
+      throw new FS.ErrnoError(44);
+    }
+    // can't truncate a device
+    if (FS.isChrdev(node.mode)) {
+      flags &= ~512;
+    }
+    // if asked only for a directory, then this must be one
+    if (flags & 65536 && !FS.isDir(node.mode)) {
+      throw new FS.ErrnoError(54);
+    }
+    // check permissions, if this is not a file we just created now (it is ok to
+    // create and write to a file with read-only permissions; it is read-only
+    // for later use)
+    if (!created) {
+      var errCode = FS.mayOpen(node, flags);
+      if (errCode) {
+        throw new FS.ErrnoError(errCode);
+      }
+    }
+    // do truncation if necessary
+    if (flags & 512 && !created) {
+      FS.truncate(node, 0);
+    }
+    // we've already handled these, don't pass down to the underlying vfs
+    flags &= ~(128 | 512 | 131072);
+    // register the stream with the filesystem
+    var stream = FS.createStream({
+      node,
+      path: FS.getPath(node),
+      // we want the absolute path to the node
+      flags,
+      seekable: true,
+      position: 0,
+      stream_ops: node.stream_ops,
+      // used by the file family libc calls (fopen, fwrite, ferror, etc.)
+      ungotten: [],
+      error: false
+    });
+    // call the new stream's open function
+    if (stream.stream_ops.open) {
+      stream.stream_ops.open(stream);
+    }
+    if (Module["logReadFiles"] && !(flags & 1)) {
+      if (!(path in FS.readFiles)) {
+        FS.readFiles[path] = 1;
+      }
+    }
+    return stream;
+  },
+  close(stream) {
+    if (FS.isClosed(stream)) {
+      throw new FS.ErrnoError(8);
+    }
+    if (stream.getdents) stream.getdents = null;
+    // free readdir state
+    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) {
+      // seek to the end before writing in append mode
+      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;
+  },
+  allocate(stream, offset, length) {
+    if (FS.isClosed(stream)) {
+      throw new FS.ErrnoError(8);
+    }
+    if (offset < 0 || length <= 0) {
+      throw new FS.ErrnoError(28);
+    }
+    if ((stream.flags & 2097155) === 0) {
+      throw new FS.ErrnoError(8);
+    }
+    if (!FS.isFile(stream.node.mode) && !FS.isDir(stream.node.mode)) {
+      throw new FS.ErrnoError(43);
+    }
+    if (!stream.stream_ops.allocate) {
+      throw new FS.ErrnoError(138);
+    }
+    stream.stream_ops.allocate(stream, offset, length);
+  },
+  mmap(stream, length, position, prot, flags) {
+    // User requests writing to file (prot & PROT_WRITE != 0).
+    // Checking if we have permissions to write to the file unless
+    // MAP_PRIVATE flag is set. According to POSIX spec it is possible
+    // to write to file opened in read-only mode with MAP_PRIVATE flag,
+    // as all modifications will be visible only in the memory of
+    // the current process.
+    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) {
+    let opts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
+    opts.flags = opts.flags || 0;
+    opts.encoding = opts.encoding || "binary";
+    if (opts.encoding !== "utf8" && opts.encoding !== "binary") {
+      throw new Error(`Invalid encoding type "${opts.encoding}"`);
+    }
+    var ret;
+    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") {
+      ret = UTF8ArrayToString(buf);
+    } else if (opts.encoding === "binary") {
+      ret = buf;
+    }
+    FS.close(stream);
+    return ret;
+  },
+  writeFile(path, data) {
+    let opts = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+    opts.flags = opts.flags || 577;
+    var stream = FS.open(path, opts.flags, opts.mode);
+    if (typeof data == "string") {
+      var buf = new Uint8Array(lengthBytesUTF8(data) + 1);
+      var actualNumBytes = stringToUTF8Array(data, buf, 0, buf.length);
+      FS.write(stream, buf, 0, actualNumBytes, undefined, opts.canOwn);
+    } else if (ArrayBuffer.isView(data)) {
+      FS.write(stream, data, 0, data.byteLength, undefined, opts.canOwn);
+    } else {
+      throw new Error("Unsupported data type");
+    }
+    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() {
+    // create /dev
+    FS.mkdir("/dev");
+    // setup /dev/null
+    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));
+    // setup /dev/tty and /dev/tty1
+    // stderr needs to print output using err() rather than out()
+    // so we register a second tty just for it.
+    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));
+    // setup /dev/[u]random
+    // use a buffer to avoid overhead of individual crypto calls per byte
+    var randomBuffer = new Uint8Array(1024),
+      randomLeft = 0;
+    var randomByte = () => {
+      if (randomLeft === 0) {
+        randomLeft = randomFill(randomBuffer).byteLength;
+      }
+      return randomBuffer[--randomLeft];
+    };
+    FS.createDevice("/dev", "random", randomByte);
+    FS.createDevice("/dev", "urandom", randomByte);
+    // we're not going to emulate the actual shm device,
+    // just create the tmp dirs that reside in it commonly
+    FS.mkdir("/dev/shm");
+    FS.mkdir("/dev/shm/tmp");
+  },
+  createSpecialDirectories() {
+    // create /proc/self/fd which allows /proc/self/fd/6 => readlink gives the
+    // name of the stream for fd 6 (see test_unistd_ttyname)
+    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;
+            // make it look like a simple root node
+            return ret;
+          },
+          readdir() {
+            return Array.from(FS.streams.entries()).filter(_ref => {
+              let [k, v] = _ref;
+              return v;
+            }).map(_ref2 => {
+              let [k, v] = _ref2;
+              return k.toString();
+            });
+          }
+        };
+        return node;
+      }
+    }, {}, "/proc/self/fd");
+  },
+  createStandardStreams(input, output, error) {
+    // TODO deprecate the old functionality of a single
+    // input / output callback and that utilizes FS.createDevice
+    // and instead require a unique set of stream ops
+    // by default, we symlink the standard streams to the
+    // default tty devices. however, if the standard streams
+    // have been overwritten we create a unique device for
+    // them instead.
+    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");
+    }
+    // open default streams for the stdin, stdout and stderr devices
+    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": MEMFS
+    };
+  },
+  init(input, output, error) {
+    var _input, _output, _error;
+    FS.initialized = true;
+    // Allow Module.stdin etc. to provide defaults, if none explicitly passed to us here
+    (_input = input) !== null && _input !== void 0 ? _input : input = Module["stdin"];
+    (_output = output) !== null && _output !== void 0 ? _output : output = Module["stdout"];
+    (_error = error) !== null && _error !== void 0 ? _error : error = Module["stderr"];
+    FS.createStandardStreams(input, output, error);
+  },
+  quit() {
+    FS.initialized = false;
+    // force-flush all streams, so we get musl std streams printed out
+    // close all of our streams
+    for (var i = 0; i < FS.streams.length; i++) {
+      var stream = FS.streams[i];
+      if (!stream) {
+        continue;
+      }
+      FS.close(stream);
+    }
+  },
+  findObject(path, dontResolveLastLink) {
+    var ret = FS.analyzePath(path, dontResolveLastLink);
+    if (!ret.exists) {
+      return null;
+    }
+    return ret.object;
+  },
+  analyzePath(path, dontResolveLastLink) {
+    // operate from within the context of the symlink's target
+    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) {}
+      // ignore EEXIST
+      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) {
+      if (typeof data == "string") {
+        var arr = new Array(data.length);
+        for (var i = 0, len = data.length; i < len; ++i) arr[i] = data.charCodeAt(i);
+        data = arr;
+      }
+      // make sure we can write to the file
+      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 _FS$createDevice, _FS$createDevice$majo;
+    var path = PATH.join2(typeof parent == "string" ? parent : FS.getPath(parent), name);
+    var mode = FS_getMode(!!input, !!output);
+    (_FS$createDevice$majo = (_FS$createDevice = FS.createDevice).major) !== null && _FS$createDevice$majo !== void 0 ? _FS$createDevice$majo : _FS$createDevice.major = 64;
+    var dev = FS.makedev(FS.createDevice.major++, 0);
+    // Create a fake device that a set of stream ops to emulate
+    // the old behavior.
+    FS.registerDevice(dev, {
+      open(stream) {
+        stream.seekable = false;
+      },
+      close(stream) {
+        var _output$buffer;
+        // flush any pending line data
+        if (output !== null && output !== void 0 && (_output$buffer = output.buffer) !== null && _output$buffer !== void 0 && _output$buffer.length) {
+          output(10);
+        }
+      },
+      read(stream, buffer, offset, length, pos) {
+        /* ignored */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 (typeof XMLHttpRequest != "undefined") {
+      throw new Error("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 {
+      // Command-line.
+      try {
+        obj.contents = readBinary(obj.url);
+        obj.usedBytes = obj.contents.length;
+      } catch (e) {
+        throw new FS.ErrnoError(29);
+      }
+    }
+  },
+  createLazyFile(parent, name, url, canRead, canWrite) {
+    // Lazy chunked Uint8Array (implements get and length from Uint8Array).
+    // Actual getting is abstracted away for eventual reuse.
+    class LazyUint8Array {
+      constructor() {
+        _defineProperty(this, "lengthKnown", false);
+        _defineProperty(this, "chunks", []);
+      }
+      // Loaded chunks. Index is the chunk number
+      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() {
+        // Find length
+        var xhr = new XMLHttpRequest();
+        xhr.open("HEAD", url, false);
+        xhr.send(null);
+        if (!(xhr.status >= 200 && xhr.status < 300 || xhr.status === 304)) throw new Error("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;
+        // Chunk size in bytes
+        if (!hasByteServing) chunkSize = datalength;
+        // Function to get a range from the remote URL.
+        var doXHR = (from, to) => {
+          if (from > to) throw new Error("invalid range (" + from + ", " + to + ") or no bytes requested!");
+          if (to > datalength - 1) throw new Error("only " + datalength + " bytes available! programmer error!");
+          // TODO: Use mozResponseArrayBuffer, responseStream, etc. if available.
+          var xhr = new XMLHttpRequest();
+          xhr.open("GET", url, false);
+          if (datalength !== chunkSize) xhr.setRequestHeader("Range", "bytes=" + from + "-" + to);
+          // Some hints to the browser that we want binary data.
+          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)) throw new Error("Couldn't load " + url + ". Status: " + xhr.status);
+          if (xhr.response !== undefined) {
+            return new Uint8Array(/** @type{Array<number>} */xhr.response || []);
+          }
+          return intArrayFromString(xhr.responseText || "", true);
+        };
+        var lazyArray = this;
+        lazyArray.setDataGetter(chunkNum => {
+          var start = chunkNum * chunkSize;
+          var end = (chunkNum + 1) * chunkSize - 1;
+          // including this byte
+          end = Math.min(end, datalength - 1);
+          // if datalength-1 is selected, this is the last block
+          if (typeof lazyArray.chunks[chunkNum] == "undefined") {
+            lazyArray.chunks[chunkNum] = doXHR(start, end);
+          }
+          if (typeof lazyArray.chunks[chunkNum] == "undefined") throw new Error("doXHR failed!");
+          return lazyArray.chunks[chunkNum];
+        });
+        if (usesGzip || !datalength) {
+          // if the server uses gzip or doesn't supply the length, we have to download the whole file to get the (uncompressed) length
+          chunkSize = datalength = 1;
+          // this will force getter(0)/doXHR do download the whole file
+          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 (typeof XMLHttpRequest != "undefined") {
+      if (!ENVIRONMENT_IS_WORKER) throw "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);
+    // This is a total hack, but I want to get this lazy file code out of the
+    // core of MEMFS. If we want to keep this lazy file concept I feel it should
+    // be its own thin LAZYFS proxying calls to MEMFS.
+    if (properties.contents) {
+      node.contents = properties.contents;
+    } else if (properties.url) {
+      node.contents = null;
+      node.url = properties.url;
+    }
+    // Add a function that defers querying the file size until it is asked the first time.
+    Object.defineProperties(node, {
+      usedBytes: {
+        get: function () {
+          return this.contents.length;
+        }
+      }
+    });
+    // override each stream op with one that tries to force load the lazy file first
+    var stream_ops = {};
+    var keys = Object.keys(node.stream_ops);
+    keys.forEach(key => {
+      var fn = node.stream_ops[key];
+      stream_ops[key] = function () {
+        FS.forceLoadFile(node);
+        return fn(...arguments);
+      };
+    });
+    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) {
+        // normal array
+        for (var i = 0; i < size; i++) {
+          buffer[offset + i] = contents[position + i];
+        }
+      } else {
+        for (var i = 0; i < size; i++) {
+          // LazyUint8Array from sync binary XHR
+          buffer[offset + i] = contents.get(position + i);
+        }
+      }
+      return size;
+    }
+    // use a custom read function
+    stream_ops.read = (stream, buffer, offset, length, position) => {
+      FS.forceLoadFile(node);
+      return writeChunks(stream, buffer, offset, length, position);
+    };
+    // use a custom mmap function
+    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;
+  }
+};
+
+/**
+     * Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the
+     * emscripten HEAP, returns a copy of that string as a Javascript String object.
+     *
+     * @param {number} ptr
+     * @param {number=} maxBytesToRead - An optional length that specifies the
+     *   maximum number of bytes to read. You can omit this parameter to scan the
+     *   string until the first 0 byte. If maxBytesToRead is passed, and the string
+     *   at [ptr, ptr+maxBytesToReadr[ contains a null byte in the middle, then the
+     *   string will cut short at that byte index (i.e. maxBytesToRead will not
+     *   produce a string of exact length [ptr, ptr+maxBytesToRead[) N.B. mixing
+     *   frequent uses of UTF8ToString() with and without maxBytesToRead may throw
+     *   JS JIT optimizations off, so it is worth to consider consistently using one
+     * @return {string}
+     */
+var UTF8ToString = (ptr, maxBytesToRead) => ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead) : "";
+var SYSCALLS = {
+  DEFAULT_POLLMASK: 5,
+  calculateAt(dirfd, path, allowEmpty) {
+    if (PATH.isAbs(path)) {
+      return path;
+    }
+    // relative 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;
+  },
+  doStat(func, path, buf) {
+    var stat = func(path);
+    HEAP32[buf >> 2] = stat.dev;
+    HEAP32[buf + 4 >> 2] = stat.mode;
+    HEAPU32[buf + 8 >> 2] = stat.nlink;
+    HEAP32[buf + 12 >> 2] = stat.uid;
+    HEAP32[buf + 16 >> 2] = stat.gid;
+    HEAP32[buf + 20 >> 2] = stat.rdev;
+    tempI64 = [stat.size >>> 0, (tempDouble = stat.size, +Math.abs(tempDouble) >= 1 ? tempDouble > 0 ? +Math.floor(tempDouble / 4294967296) >>> 0 : ~~+Math.ceil((tempDouble - +(~~tempDouble >>> 0)) / 4294967296) >>> 0 : 0)], HEAP32[buf + 24 >> 2] = tempI64[0], HEAP32[buf + 28 >> 2] = tempI64[1];
+    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();
+    tempI64 = [Math.floor(atime / 1e3) >>> 0, (tempDouble = Math.floor(atime / 1e3), +Math.abs(tempDouble) >= 1 ? tempDouble > 0 ? +Math.floor(tempDouble / 4294967296) >>> 0 : ~~+Math.ceil((tempDouble - +(~~tempDouble >>> 0)) / 4294967296) >>> 0 : 0)], HEAP32[buf + 40 >> 2] = tempI64[0], HEAP32[buf + 44 >> 2] = tempI64[1];
+    HEAPU32[buf + 48 >> 2] = atime % 1e3 * 1e3 * 1e3;
+    tempI64 = [Math.floor(mtime / 1e3) >>> 0, (tempDouble = Math.floor(mtime / 1e3), +Math.abs(tempDouble) >= 1 ? tempDouble > 0 ? +Math.floor(tempDouble / 4294967296) >>> 0 : ~~+Math.ceil((tempDouble - +(~~tempDouble >>> 0)) / 4294967296) >>> 0 : 0)], HEAP32[buf + 56 >> 2] = tempI64[0], HEAP32[buf + 60 >> 2] = tempI64[1];
+    HEAPU32[buf + 64 >> 2] = mtime % 1e3 * 1e3 * 1e3;
+    tempI64 = [Math.floor(ctime / 1e3) >>> 0, (tempDouble = Math.floor(ctime / 1e3), +Math.abs(tempDouble) >= 1 ? tempDouble > 0 ? +Math.floor(tempDouble / 4294967296) >>> 0 : ~~+Math.ceil((tempDouble - +(~~tempDouble >>> 0)) / 4294967296) >>> 0 : 0)], HEAP32[buf + 72 >> 2] = tempI64[0], HEAP32[buf + 76 >> 2] = tempI64[1];
+    HEAPU32[buf + 80 >> 2] = ctime % 1e3 * 1e3 * 1e3;
+    tempI64 = [stat.ino >>> 0, (tempDouble = stat.ino, +Math.abs(tempDouble) >= 1 ? tempDouble > 0 ? +Math.floor(tempDouble / 4294967296) >>> 0 : ~~+Math.ceil((tempDouble - +(~~tempDouble >>> 0)) / 4294967296) >>> 0 : 0)], HEAP32[buf + 88 >> 2] = tempI64[0], HEAP32[buf + 92 >> 2] = tempI64[1];
+    return 0;
+  },
+  doMsync(addr, stream, len, flags, offset) {
+    if (!FS.isFile(stream.node.mode)) {
+      throw new FS.ErrnoError(43);
+    }
+    if (flags & 2) {
+      // MAP_PRIVATE calls need not to be synced back to underlying fs
+      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_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;
+
+      // FD_CLOEXEC makes no sense for a single process.
+      case 3:
+        return stream.flags;
+      case 4:
+        {
+          var arg = syscallGetVarargI();
+          stream.flags |= arg;
+          return 0;
+        }
+      case 12:
+        {
+          var arg = syscallGetVarargP();
+          var offset = 0;
+          // We're always unlocked.
+          HEAP16[arg + offset >> 1] = 2;
+          return 0;
+        }
+      case 13:
+      case 14:
+        return 0;
+    }
+    // Pretend that the locking is successful.
+    return -28;
+  } 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;
+        }
+
+      // no-op, not actually adjusting terminal settings
+      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;
+        }
+
+      // no-op, not actually adjusting terminal settings
+      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;
+        }
+
+      // not supported
+      case 21531:
+        {
+          var argp = syscallGetVarargP();
+          return FS.ioctl(stream, op, argp);
+        }
+      case 21523:
+        {
+          // TODO: in theory we should write to the winsize struct that gets
+          // passed in, but for now musl doesn't read anything on it
+          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:
+        {
+          // TODO: technically, this ioctl call should change the window size.
+          // but, since emscripten doesn't have any concept of a terminal window
+          // yet, we'll just silently throw it away as we do TIOCGWINSZ
+          if (!stream.tty) return -59;
+          return 0;
+        }
+      case 21515:
+        {
+          if (!stream.tty) return -59;
+          return 0;
+        }
+      default:
+        return -28;
+    }
+  } // not supported
+  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;
+    return FS.open(path, flags, mode).fd;
+  } catch (e) {
+    if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
+    return -e.errno;
+  }
+}
+var __abort_js = () => abort("");
+var __embind_register_bigint = (primitiveType, name, size, minRange, maxRange) => {};
+var embind_init_charCodes = () => {
+  var codes = new Array(256);
+  for (var i = 0; i < 256; ++i) {
+    codes[i] = String.fromCharCode(i);
+  }
+  embind_charCodes = codes;
+};
+var embind_charCodes;
+var readLatin1String = ptr => {
+  var ret = "";
+  var c = ptr;
+  while (HEAPU8[c]) {
+    ret += embind_charCodes[HEAPU8[c++]];
+  }
+  return ret;
+};
+var awaitingDependencies = {};
+var registeredTypes = {};
+var typeDependencies = {};
+var BindingError;
+var throwBindingError = message => {
+  throw new BindingError(message);
+};
+var InternalError;
+
+/** @param {Object=} options */
+function sharedRegisterType(rawType, registeredInstance) {
+  let options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+  var name = registeredInstance.name;
+  if (!rawType) {
+    throwBindingError(`type "${name}" must have a positive integer typeid pointer`);
+  }
+  if (registeredTypes.hasOwnProperty(rawType)) {
+    if (options.ignoreDuplicateRegistrations) {
+      return;
+    } else {
+      throwBindingError(`Cannot register type '${name}' twice`);
+    }
+  }
+  registeredTypes[rawType] = registeredInstance;
+  delete typeDependencies[rawType];
+  if (awaitingDependencies.hasOwnProperty(rawType)) {
+    var callbacks = awaitingDependencies[rawType];
+    delete awaitingDependencies[rawType];
+    callbacks.forEach(cb => cb());
+  }
+}
+
+/** @param {Object=} options */
+function registerType(rawType, registeredInstance) {
+  let options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
+  return sharedRegisterType(rawType, registeredInstance, options);
+}
+var GenericWireTypeSize = 8;
+
+/** @suppress {globalThis} */
+var __embind_register_bool = (rawType, name, trueValue, falseValue) => {
+  name = readLatin1String(name);
+  registerType(rawType, {
+    name,
+    "fromWireType": function (wt) {
+      // ambiguous emscripten ABI: sometimes return values are
+      // true or false, and sometimes integers (0 or 1)
+      return !!wt;
+    },
+    "toWireType": function (destructors, o) {
+      return o ? trueValue : falseValue;
+    },
+    argPackAdvance: GenericWireTypeSize,
+    "readValueFromPointer": function (pointer) {
+      return this["fromWireType"](HEAPU8[pointer]);
+    },
+    destructorFunction: null
+  });
+};
+
+// This type does not need a destructor
+var emval_freelist = [];
+var emval_handles = [];
+var __emval_decref = handle => {
+  if (handle > 9 && 0 === --emval_handles[handle + 1]) {
+    emval_handles[handle] = undefined;
+    emval_freelist.push(handle);
+  }
+};
+var count_emval_handles = () => emval_handles.length / 2 - 5 - emval_freelist.length;
+var init_emval = () => {
+  // reserve 0 and some special values. These never get de-allocated.
+  emval_handles.push(0, 1, undefined, 1, null, 1, true, 1, false, 1);
+  Module["count_emval_handles"] = count_emval_handles;
+};
+var Emval = {
+  toValue: handle => {
+    if (!handle) {
+      throwBindingError("Cannot use deleted val. handle = " + handle);
+    }
+    return emval_handles[handle];
+  },
+  toHandle: value => {
+    switch (value) {
+      case undefined:
+        return 2;
+      case null:
+        return 4;
+      case true:
+        return 6;
+      case false:
+        return 8;
+      default:
+        {
+          const handle = emval_freelist.pop() || emval_handles.length;
+          emval_handles[handle] = value;
+          emval_handles[handle + 1] = 1;
+          return handle;
+        }
+    }
+  }
+};
+
+/** @suppress {globalThis} */
+function readPointer(pointer) {
+  return this["fromWireType"](HEAPU32[pointer >> 2]);
+}
+var EmValType = {
+  name: "emscripten::val",
+  "fromWireType": handle => {
+    var rv = Emval.toValue(handle);
+    __emval_decref(handle);
+    return rv;
+  },
+  "toWireType": (destructors, value) => Emval.toHandle(value),
+  argPackAdvance: GenericWireTypeSize,
+  "readValueFromPointer": readPointer,
+  destructorFunction: null
+};
+
+// This type does not need a destructor
+// TODO: do we need a deleteObject here?  write a test where
+// emval is passed into JS via an interface
+var __embind_register_emval = rawType => registerType(rawType, EmValType);
+var floatReadValueFromPointer = (name, width) => {
+  switch (width) {
+    case 4:
+      return function (pointer) {
+        return this["fromWireType"](HEAPF32[pointer >> 2]);
+      };
+    case 8:
+      return function (pointer) {
+        return this["fromWireType"](HEAPF64[pointer >> 3]);
+      };
+    default:
+      throw new TypeError(`invalid float width (${width}): ${name}`);
+  }
+};
+var __embind_register_float = (rawType, name, size) => {
+  name = readLatin1String(name);
+  registerType(rawType, {
+    name,
+    "fromWireType": value => value,
+    "toWireType": (destructors, value) => value,
+    argPackAdvance: GenericWireTypeSize,
+    "readValueFromPointer": floatReadValueFromPointer(name, size),
+    destructorFunction: null
+  });
+};
+
+// This type does not need a destructor
+var integerReadValueFromPointer = (name, width, signed) => {
+  // integers are quite common, so generate very specialized functions
+  switch (width) {
+    case 1:
+      return signed ? pointer => HEAP8[pointer] : pointer => HEAPU8[pointer];
+    case 2:
+      return signed ? pointer => HEAP16[pointer >> 1] : pointer => HEAPU16[pointer >> 1];
+    case 4:
+      return signed ? pointer => HEAP32[pointer >> 2] : pointer => HEAPU32[pointer >> 2];
+    default:
+      throw new TypeError(`invalid integer width (${width}): ${name}`);
+  }
+};
+
+/** @suppress {globalThis} */
+var __embind_register_integer = (primitiveType, name, size, minRange, maxRange) => {
+  name = readLatin1String(name);
+  // LLVM doesn't have signed and unsigned 32-bit types, so u32 literals come
+  // out as 'i32 -1'. Always treat those as max u32.
+  if (maxRange === -1) {
+    maxRange = 4294967295;
+  }
+  var fromWireType = value => value;
+  if (minRange === 0) {
+    var bitshift = 32 - 8 * size;
+    fromWireType = value => value << bitshift >>> bitshift;
+  }
+  var isUnsignedType = name.includes("unsigned");
+  var checkAssertions = (value, toTypeName) => {};
+  var toWireType;
+  if (isUnsignedType) {
+    toWireType = function (destructors, value) {
+      checkAssertions(value, this.name);
+      return value >>> 0;
+    };
+  } else {
+    toWireType = function (destructors, value) {
+      checkAssertions(value, this.name);
+      // The VM will perform JS to Wasm value conversion, according to the spec:
+      // https://www.w3.org/TR/wasm-js-api-1/#towebassemblyvalue
+      return value;
+    };
+  }
+  registerType(primitiveType, {
+    name,
+    "fromWireType": fromWireType,
+    "toWireType": toWireType,
+    argPackAdvance: GenericWireTypeSize,
+    "readValueFromPointer": integerReadValueFromPointer(name, size, minRange !== 0),
+    destructorFunction: null
+  });
+};
+
+// This type does not need a destructor
+var __embind_register_memory_view = (rawType, dataTypeIndex, name) => {
+  var typeMapping = [Int8Array, Uint8Array, Int16Array, Uint16Array, Int32Array, Uint32Array, Float32Array, Float64Array];
+  var TA = typeMapping[dataTypeIndex];
+  function decodeMemoryView(handle) {
+    var size = HEAPU32[handle >> 2];
+    var data = HEAPU32[handle + 4 >> 2];
+    return new TA(HEAP8.buffer, data, size);
+  }
+  name = readLatin1String(name);
+  registerType(rawType, {
+    name,
+    "fromWireType": decodeMemoryView,
+    argPackAdvance: GenericWireTypeSize,
+    "readValueFromPointer": decodeMemoryView
+  }, {
+    ignoreDuplicateRegistrations: true
+  });
+};
+var stringToUTF8 = (str, outPtr, maxBytesToWrite) => stringToUTF8Array(str, HEAPU8, outPtr, maxBytesToWrite);
+var __embind_register_std_string = (rawType, name) => {
+  name = readLatin1String(name);
+  var stdStringIsUTF8 = true;
+  registerType(rawType, {
+    name,
+    // For some method names we use string keys here since they are part of
+    // the public/external API and/or used by the runtime-generated code.
+    "fromWireType"(value) {
+      var length = HEAPU32[value >> 2];
+      var payload = value + 4;
+      var str;
+      if (stdStringIsUTF8) {
+        var decodeStartPtr = payload;
+        // Looping here to support possible embedded '0' bytes
+        for (var i = 0; i <= length; ++i) {
+          var currentBytePtr = payload + i;
+          if (i == length || HEAPU8[currentBytePtr] == 0) {
+            var maxRead = currentBytePtr - decodeStartPtr;
+            var stringSegment = UTF8ToString(decodeStartPtr, maxRead);
+            if (str === undefined) {
+              str = stringSegment;
+            } else {
+              str += String.fromCharCode(0);
+              str += stringSegment;
+            }
+            decodeStartPtr = currentBytePtr + 1;
+          }
+        }
+      } else {
+        var a = new Array(length);
+        for (var i = 0; i < length; ++i) {
+          a[i] = String.fromCharCode(HEAPU8[payload + i]);
+        }
+        str = a.join("");
+      }
+      _free(value);
+      return str;
+    },
+    "toWireType"(destructors, value) {
+      if (value instanceof ArrayBuffer) {
+        value = new Uint8Array(value);
+      }
+      var length;
+      var valueIsOfTypeString = typeof value == "string";
+      if (!(valueIsOfTypeString || value instanceof Uint8Array || value instanceof Uint8ClampedArray || value instanceof Int8Array)) {
+        throwBindingError("Cannot pass non-string to std::string");
+      }
+      if (stdStringIsUTF8 && valueIsOfTypeString) {
+        length = lengthBytesUTF8(value);
+      } else {
+        length = value.length;
+      }
+      // assumes POINTER_SIZE alignment
+      var base = _malloc(4 + length + 1);
+      var ptr = base + 4;
+      HEAPU32[base >> 2] = length;
+      if (stdStringIsUTF8 && valueIsOfTypeString) {
+        stringToUTF8(value, ptr, length + 1);
+      } else {
+        if (valueIsOfTypeString) {
+          for (var i = 0; i < length; ++i) {
+            var charCode = value.charCodeAt(i);
+            if (charCode > 255) {
+              _free(ptr);
+              throwBindingError("String has UTF-16 code units that do not fit in 8 bits");
+            }
+            HEAPU8[ptr + i] = charCode;
+          }
+        } else {
+          for (var i = 0; i < length; ++i) {
+            HEAPU8[ptr + i] = value[i];
+          }
+        }
+      }
+      if (destructors !== null) {
+        destructors.push(_free, base);
+      }
+      return base;
+    },
+    argPackAdvance: GenericWireTypeSize,
+    "readValueFromPointer": readPointer,
+    destructorFunction(ptr) {
+      _free(ptr);
+    }
+  });
+};
+var UTF16Decoder = typeof TextDecoder != "undefined" ? new TextDecoder("utf-16le") : undefined;
+var UTF16ToString = (ptr, maxBytesToRead) => {
+  var endPtr = ptr;
+  // TextDecoder needs to know the byte length in advance, it doesn't stop on
+  // null terminator by itself.
+  // Also, use the length info to avoid running tiny strings through
+  // TextDecoder, since .subarray() allocates garbage.
+  var idx = endPtr >> 1;
+  var maxIdx = idx + maxBytesToRead / 2;
+  // If maxBytesToRead is not passed explicitly, it will be undefined, and this
+  // will always evaluate to true. This saves on code size.
+  while (!(idx >= maxIdx) && HEAPU16[idx]) ++idx;
+  endPtr = idx << 1;
+  if (endPtr - ptr > 32 && UTF16Decoder) return UTF16Decoder.decode(HEAPU8.subarray(ptr, endPtr));
+  // Fallback: decode without UTF16Decoder
+  var str = "";
+  // If maxBytesToRead is not passed explicitly, it will be undefined, and the
+  // for-loop's condition will always evaluate to true. The loop is then
+  // terminated on the first null char.
+  for (var i = 0; !(i >= maxBytesToRead / 2); ++i) {
+    var codeUnit = HEAP16[ptr + i * 2 >> 1];
+    if (codeUnit == 0) break;
+    // fromCharCode constructs a character from a UTF-16 code unit, so we can
+    // pass the UTF16 string right through.
+    str += String.fromCharCode(codeUnit);
+  }
+  return str;
+};
+var stringToUTF16 = (str, outPtr, maxBytesToWrite) => {
+  var _maxBytesToWrite;
+  // Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed.
+  (_maxBytesToWrite = maxBytesToWrite) !== null && _maxBytesToWrite !== void 0 ? _maxBytesToWrite : maxBytesToWrite = 2147483647;
+  if (maxBytesToWrite < 2) return 0;
+  maxBytesToWrite -= 2;
+  // Null terminator.
+  var startPtr = outPtr;
+  var numCharsToWrite = maxBytesToWrite < str.length * 2 ? maxBytesToWrite / 2 : str.length;
+  for (var i = 0; i < numCharsToWrite; ++i) {
+    // charCodeAt returns a UTF-16 encoded code unit, so it can be directly written to the HEAP.
+    var codeUnit = str.charCodeAt(i);
+    // possibly a lead surrogate
+    HEAP16[outPtr >> 1] = codeUnit;
+    outPtr += 2;
+  }
+  // Null-terminate the pointer to the HEAP.
+  HEAP16[outPtr >> 1] = 0;
+  return outPtr - startPtr;
+};
+var lengthBytesUTF16 = str => str.length * 2;
+var UTF32ToString = (ptr, maxBytesToRead) => {
+  var i = 0;
+  var str = "";
+  // If maxBytesToRead is not passed explicitly, it will be undefined, and this
+  // will always evaluate to true. This saves on code size.
+  while (!(i >= maxBytesToRead / 4)) {
+    var utf32 = HEAP32[ptr + i * 4 >> 2];
+    if (utf32 == 0) break;
+    ++i;
+    // Gotcha: fromCharCode constructs a character from a UTF-16 encoded code (pair), not from a Unicode code point! So encode the code point to UTF-16 for constructing.
+    // See http://unicode.org/faq/utf_bom.html#utf16-3
+    if (utf32 >= 65536) {
+      var ch = utf32 - 65536;
+      str += String.fromCharCode(55296 | ch >> 10, 56320 | ch & 1023);
+    } else {
+      str += String.fromCharCode(utf32);
+    }
+  }
+  return str;
+};
+var stringToUTF32 = (str, outPtr, maxBytesToWrite) => {
+  var _maxBytesToWrite2;
+  // Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed.
+  (_maxBytesToWrite2 = maxBytesToWrite) !== null && _maxBytesToWrite2 !== void 0 ? _maxBytesToWrite2 : maxBytesToWrite = 2147483647;
+  if (maxBytesToWrite < 4) return 0;
+  var startPtr = outPtr;
+  var endPtr = startPtr + maxBytesToWrite - 4;
+  for (var i = 0; i < str.length; ++i) {
+    // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap.
+    // See http://unicode.org/faq/utf_bom.html#utf16-3
+    var codeUnit = str.charCodeAt(i);
+    // possibly a lead surrogate
+    if (codeUnit >= 55296 && codeUnit <= 57343) {
+      var trailSurrogate = str.charCodeAt(++i);
+      codeUnit = 65536 + ((codeUnit & 1023) << 10) | trailSurrogate & 1023;
+    }
+    HEAP32[outPtr >> 2] = codeUnit;
+    outPtr += 4;
+    if (outPtr + 4 > endPtr) break;
+  }
+  // Null-terminate the pointer to the HEAP.
+  HEAP32[outPtr >> 2] = 0;
+  return outPtr - startPtr;
+};
+var lengthBytesUTF32 = str => {
+  var len = 0;
+  for (var i = 0; i < str.length; ++i) {
+    // Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap.
+    // See http://unicode.org/faq/utf_bom.html#utf16-3
+    var codeUnit = str.charCodeAt(i);
+    if (codeUnit >= 55296 && codeUnit <= 57343) ++i;
+    // possibly a lead surrogate, so skip over the tail surrogate.
+    len += 4;
+  }
+  return len;
+};
+var __embind_register_std_wstring = (rawType, charSize, name) => {
+  name = readLatin1String(name);
+  var decodeString, encodeString, readCharAt, lengthBytesUTF;
+  if (charSize === 2) {
+    decodeString = UTF16ToString;
+    encodeString = stringToUTF16;
+    lengthBytesUTF = lengthBytesUTF16;
+    readCharAt = pointer => HEAPU16[pointer >> 1];
+  } else if (charSize === 4) {
+    decodeString = UTF32ToString;
+    encodeString = stringToUTF32;
+    lengthBytesUTF = lengthBytesUTF32;
+    readCharAt = pointer => HEAPU32[pointer >> 2];
+  }
+  registerType(rawType, {
+    name,
+    "fromWireType": value => {
+      // Code mostly taken from _embind_register_std_string fromWireType
+      var length = HEAPU32[value >> 2];
+      var str;
+      var decodeStartPtr = value + 4;
+      // Looping here to support possible embedded '0' bytes
+      for (var i = 0; i <= length; ++i) {
+        var currentBytePtr = value + 4 + i * charSize;
+        if (i == length || readCharAt(currentBytePtr) == 0) {
+          var maxReadBytes = currentBytePtr - decodeStartPtr;
+          var stringSegment = decodeString(decodeStartPtr, maxReadBytes);
+          if (str === undefined) {
+            str = stringSegment;
+          } else {
+            str += String.fromCharCode(0);
+            str += stringSegment;
+          }
+          decodeStartPtr = currentBytePtr + charSize;
+        }
+      }
+      _free(value);
+      return str;
+    },
+    "toWireType": (destructors, value) => {
+      if (!(typeof value == "string")) {
+        throwBindingError(`Cannot pass non-string to C++ string type ${name}`);
+      }
+      // assumes POINTER_SIZE alignment
+      var length = lengthBytesUTF(value);
+      var ptr = _malloc(4 + length + charSize);
+      HEAPU32[ptr >> 2] = length / charSize;
+      encodeString(value, ptr + 4, length + charSize);
+      if (destructors !== null) {
+        destructors.push(_free, ptr);
+      }
+      return ptr;
+    },
+    argPackAdvance: GenericWireTypeSize,
+    "readValueFromPointer": readPointer,
+    destructorFunction(ptr) {
+      _free(ptr);
+    }
+  });
+};
+var __embind_register_void = (rawType, name) => {
+  name = readLatin1String(name);
+  registerType(rawType, {
+    isVoid: true,
+    // void return values can be optimized out sometimes
+    name,
+    argPackAdvance: 0,
+    "fromWireType": () => undefined,
+    // TODO: assert if anything else is given?
+    "toWireType": (destructors, o) => undefined
+  });
+};
+var __emscripten_memcpy_js = (dest, src, num) => HEAPU8.copyWithin(dest, src, src + num);
+var __tzset_js = (timezone, daylight, std_name, dst_name) => {
+  // TODO: Use (malleable) environment variables instead of system settings.
+  var currentYear = new Date().getFullYear();
+  var winter = new Date(currentYear, 0, 1);
+  var summer = new Date(currentYear, 6, 1);
+  var winterOffset = winter.getTimezoneOffset();
+  var summerOffset = summer.getTimezoneOffset();
+  // Local standard timezone offset. Local standard time is not adjusted for
+  // daylight savings.  This code uses the fact that getTimezoneOffset returns
+  // a greater value during Standard Time versus Daylight Saving Time (DST).
+  // Thus it determines the expected output during Standard Time, and it
+  // compares whether the output of the given date the same (Standard) or less
+  // (DST).
+  var stdTimezoneOffset = Math.max(winterOffset, summerOffset);
+  // timezone is specified as seconds west of UTC ("The external variable
+  // `timezone` shall be set to the difference, in seconds, between
+  // Coordinated Universal Time (UTC) and local standard time."), the same
+  // as returned by stdTimezoneOffset.
+  // See http://pubs.opengroup.org/onlinepubs/009695399/functions/tzset.html
+  HEAPU32[timezone >> 2] = stdTimezoneOffset * 60;
+  HEAP32[daylight >> 2] = Number(winterOffset != summerOffset);
+  var extractZone = timezoneOffset => {
+    // Why inverse sign?
+    // Read here https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTimezoneOffset
+    var sign = timezoneOffset >= 0 ? "-" : "+";
+    var absOffset = Math.abs(timezoneOffset);
+    var hours = String(Math.floor(absOffset / 60)).padStart(2, "0");
+    var minutes = String(absOffset % 60).padStart(2, "0");
+    return `UTC${sign}${hours}${minutes}`;
+  };
+  var winterName = extractZone(winterOffset);
+  var summerName = extractZone(summerOffset);
+  if (summerOffset < winterOffset) {
+    // Northern hemisphere
+    stringToUTF8(winterName, std_name, 17);
+    stringToUTF8(summerName, dst_name, 17);
+  } else {
+    stringToUTF8(winterName, dst_name, 17);
+    stringToUTF8(summerName, std_name, 17);
+  }
+};
+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 convertI32PairToI53Checked = (lo, hi) => hi + 2097152 >>> 0 < 4194305 - !!lo ? (lo >>> 0) + hi * 4294967296 : NaN;
+function _clock_time_get(clk_id, ignored_precision_low, ignored_precision_high, ptime) {
+  var ignored_precision = convertI32PairToI53Checked(ignored_precision_low, ignored_precision_high);
+  if (!checkWasiClock(clk_id)) {
+    return 28;
+  }
+  var now;
+  // all wasi clocks but realtime are monotonic
+  if (clk_id === 0) {
+    now = _emscripten_date_now();
+  } else if (nowIsMonotonic) {
+    now = _emscripten_get_now();
+  } else {
+    return 52;
+  }
+  // "now" is in ms, and wasi times are in ns.
+  var nsec = Math.round(now * 1e3 * 1e3);
+  tempI64 = [nsec >>> 0, (tempDouble = nsec, +Math.abs(tempDouble) >= 1 ? tempDouble > 0 ? +Math.floor(tempDouble / 4294967296) >>> 0 : ~~+Math.ceil((tempDouble - +(~~tempDouble >>> 0)) / 4294967296) >>> 0 : 0)], HEAP32[ptime >> 2] = tempI64[0], HEAP32[ptime + 4 >> 2] = tempI64[1];
+  return 0;
+}
+var getHeapMax = () =>
+// Stay one Wasm page short of 4GB: while e.g. Chrome is able to allocate
+// full 4GB Wasm memories, the size will wrap back to 0 bytes in Wasm side
+// for any code that deals with heap sizes, which would require special
+// casing all heap size related code to treat 0 specially.
+2147483648;
+var _emscripten_get_heap_max = () => getHeapMax();
+var growMemory = size => {
+  var b = wasmMemory.buffer;
+  var pages = (size - b.byteLength + 65535) / 65536 | 0;
+  try {
+    // round size grow request up to wasm page size (fixed 64KB per spec)
+    wasmMemory.grow(pages);
+    // .grow() takes a delta compared to the previous size
+    updateMemoryViews();
+    return 1;
+  } /*success*/ catch (e) {}
+};
+
+// implicit 0 return to save code size (caller will cast "undefined" into 0
+// anyhow)
+var _emscripten_resize_heap = requestedSize => {
+  var oldSize = HEAPU8.length;
+  // With CAN_ADDRESS_2GB or MEMORY64, pointers are already unsigned.
+  requestedSize >>>= 0;
+  // With multithreaded builds, races can happen (another thread might increase the size
+  // in between), so return a failure, and let the caller retry.
+  // Memory resize rules:
+  // 1.  Always increase heap size to at least the requested size, rounded up
+  //     to next page multiple.
+  // 2a. If MEMORY_GROWTH_LINEAR_STEP == -1, excessively resize the heap
+  //     geometrically: increase the heap size according to
+  //     MEMORY_GROWTH_GEOMETRIC_STEP factor (default +20%), At most
+  //     overreserve by MEMORY_GROWTH_GEOMETRIC_CAP bytes (default 96MB).
+  // 2b. If MEMORY_GROWTH_LINEAR_STEP != -1, excessively resize the heap
+  //     linearly: increase the heap size by at least
+  //     MEMORY_GROWTH_LINEAR_STEP bytes.
+  // 3.  Max size for the heap is capped at 2048MB-WASM_PAGE_SIZE, or by
+  //     MAXIMUM_MEMORY, or by ASAN limit, depending on which is smallest
+  // 4.  If we were unable to allocate as much memory, it may be due to
+  //     over-eager decision to excessively reserve due to (3) above.
+  //     Hence if an allocation fails, cut down on the amount of excess
+  //     growth, in an attempt to succeed to perform a smaller allocation.
+  // A limit is set for how much we can grow. We should not exceed that
+  // (the wasm binary specifies it, so if we tried, we'd fail anyhow).
+  var maxHeapSize = getHeapMax();
+  if (requestedSize > maxHeapSize) {
+    return false;
+  }
+  // Loop through potential heap size increases. If we attempt a too eager
+  // reservation that fails, cut down on the attempted size and reserve a
+  // smaller bump instead. (max 3 times, chosen somewhat arbitrarily)
+  for (var cutDown = 1; cutDown <= 4; cutDown *= 2) {
+    var overGrownHeapSize = oldSize * (1 + .2 / cutDown);
+    // ensure geometric growth
+    // but limit overreserving (default to capping at +96MB overgrowth at most)
+    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 || "./this.program";
+var getEnvStrings = () => {
+  if (!getEnvStrings.strings) {
+    // Default values.
+    // Browser language detection #8751
+    var lang = (typeof navigator == "object" && navigator.languages && navigator.languages[0] || "C").replace("-", "_") + ".UTF-8";
+    var env = {
+      "USER": "web_user",
+      "LOGNAME": "web_user",
+      "PATH": "/",
+      "PWD": "/",
+      "HOME": "/home/web_user",
+      "LANG": lang,
+      "_": getExecutableName()
+    };
+    // Apply the user-provided values, if any.
+    for (var x in ENV) {
+      // x is a key in ENV; if ENV[x] is undefined, that means it was
+      // explicitly set to be so. We allow user code to do that to
+      // force variables with default values to remain unset.
+      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 stringToAscii = (str, buffer) => {
+  for (var i = 0; i < str.length; ++i) {
+    HEAP8[buffer++] = str.charCodeAt(i);
+  }
+  // Null-terminate the string
+  HEAP8[buffer] = 0;
+};
+var _environ_get = (__environ, environ_buf) => {
+  var bufSize = 0;
+  getEnvStrings().forEach((string, i) => {
+    var ptr = environ_buf + bufSize;
+    HEAPU32[__environ + i * 4 >> 2] = ptr;
+    stringToAscii(string, ptr);
+    bufSize += string.length + 1;
+  });
+  return 0;
+};
+var _environ_sizes_get = (penviron_count, penviron_buf_size) => {
+  var strings = getEnvStrings();
+  HEAPU32[penviron_count >> 2] = strings.length;
+  var bufSize = 0;
+  strings.forEach(string => bufSize += string.length + 1);
+  HEAPU32[penviron_buf_size >> 2] = bufSize;
+  return 0;
+};
+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;
+  }
+}
+
+/** @param {number=} offset */
+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;
+    // nothing more to read
+    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_low, offset_high, whence, newOffset) {
+  var offset = convertI32PairToI53Checked(offset_low, offset_high);
+  try {
+    if (isNaN(offset)) return 61;
+    var stream = SYSCALLS.getStreamFromFD(fd);
+    FS.llseek(stream, offset, whence);
+    tempI64 = [stream.position >>> 0, (tempDouble = stream.position, +Math.abs(tempDouble) >= 1 ? tempDouble > 0 ? +Math.floor(tempDouble / 4294967296) >>> 0 : ~~+Math.ceil((tempDouble - +(~~tempDouble >>> 0)) / 4294967296) >>> 0 : 0)], HEAP32[newOffset >> 2] = tempI64[0], HEAP32[newOffset + 4 >> 2] = tempI64[1];
+    if (stream.getdents && offset === 0 && whence === 0) stream.getdents = null;
+    // reset readdir state
+    return 0;
+  } catch (e) {
+    if (typeof FS == "undefined" || !(e.name === "ErrnoError")) throw e;
+    return e.errno;
+  }
+}
+
+/** @param {number=} offset */
+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) {
+      // No more space to write.
+      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 _llvm_eh_typeid_for = type => type;
+var wasmTableMirror = [];
+
+/** @type {WebAssembly.Table} */
+var wasmTable;
+var getWasmTableEntry = funcPtr => {
+  var func = wasmTableMirror[funcPtr];
+  if (!func) {
+    if (funcPtr >= wasmTableMirror.length) wasmTableMirror.length = funcPtr + 1;
+    /** @suppress {checkTypes} */
+    wasmTableMirror[funcPtr] = func = wasmTable.get(funcPtr);
+  }
+  return func;
+};
+var getCFunc = ident => {
+  var func = Module["_" + ident];
+  // closure exported function
+  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;
+};
+
+/**
+     * @param {string|null=} returnType
+     * @param {Array=} argTypes
+     * @param {Arguments|Array=} args
+     * @param {Object=} opts
+     */
+var ccall = (ident, returnType, argTypes, args, opts) => {
+  // For fast lookup of conversion functions
+  var toC = {
+    "string": str => {
+      var ret = 0;
+      if (str !== null && str !== undefined && str !== 0) {
+        // null string
+        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;
+};
+
+/**
+     * @param {string=} returnType
+     * @param {Array=} argTypes
+     * @param {Object=} opts
+     */
+var cwrap = (ident, returnType, argTypes, opts) => {
+  // When the function takes numbers and returns a number, we can just return
+  // the original function
+  var numericArgs = !argTypes || argTypes.every(type => type === "number" || type === "boolean");
+  var numericRet = returnType !== "string";
+  if (numericRet && numericArgs && !opts) {
+    return getCFunc(ident);
+  }
+  return function () {
+    for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+      args[_key2] = arguments[_key2];
+    }
+    return ccall(ident, returnType, argTypes, args, opts);
+  };
+};
+FS.createPreloadedFile = FS_createPreloadedFile;
+FS.staticInit();
+
+// This error may happen quite a bit. To avoid overhead we reuse it (and
+// suffer a lack of stack info).
+MEMFS.doesNotExistError = new FS.ErrnoError(44);
+
+/** @suppress {checkTypes} */
+MEMFS.doesNotExistError.stack = "<generic error, no stack>";
+embind_init_charCodes();
+BindingError = Module["BindingError"] = class BindingError extends Error {
+  constructor(message) {
+    super(message);
+    this.name = "BindingError";
+  }
+};
+InternalError = Module["InternalError"] = class InternalError extends Error {
+  constructor(message) {
+    super(message);
+    this.name = "InternalError";
+  }
+};
+init_emval();
+var wasmImports = {
+  /** @export */x: ___cxa_begin_catch,
+  /** @export */zb: ___cxa_current_primary_exception,
+  /** @export */E: ___cxa_end_catch,
+  /** @export */a: ___cxa_find_matching_catch_2,
+  /** @export */p: ___cxa_find_matching_catch_3,
+  /** @export */B: ___cxa_find_matching_catch_4,
+  /** @export */Da: ___cxa_rethrow,
+  /** @export */yb: ___cxa_rethrow_primary_exception,
+  /** @export */H: ___cxa_throw,
+  /** @export */Ab: ___cxa_uncaught_exceptions,
+  /** @export */e: ___resumeException,
+  /** @export */Ha: ___syscall_fcntl64,
+  /** @export */Fb: ___syscall_ioctl,
+  /** @export */Ia: ___syscall_openat,
+  /** @export */wb: __abort_js,
+  /** @export */lb: __embind_register_bigint,
+  /** @export */ub: __embind_register_bool,
+  /** @export */sb: __embind_register_emval,
+  /** @export */Fa: __embind_register_float,
+  /** @export */O: __embind_register_integer,
+  /** @export */F: __embind_register_memory_view,
+  /** @export */tb: __embind_register_std_string,
+  /** @export */ia: __embind_register_std_wstring,
+  /** @export */vb: __embind_register_void,
+  /** @export */Hb: __emscripten_memcpy_js,
+  /** @export */xb: __tzset_js,
+  /** @export */nb: _clock_time_get,
+  /** @export */Gb: _emscripten_date_now,
+  /** @export */Cb: _emscripten_get_heap_max,
+  /** @export */Bb: _emscripten_resize_heap,
+  /** @export */Db: _environ_get,
+  /** @export */Eb: _environ_sizes_get,
+  /** @export */ka: _fd_close,
+  /** @export */Ga: _fd_read,
+  /** @export */ob: _fd_seek,
+  /** @export */ja: _fd_write,
+  /** @export */Y: invoke_di,
+  /** @export */t: invoke_dii,
+  /** @export */P: invoke_diii,
+  /** @export */va: invoke_diiii,
+  /** @export */n: invoke_fi,
+  /** @export */G: invoke_fii,
+  /** @export */Ca: invoke_fiii,
+  /** @export */Ob: invoke_fiiii,
+  /** @export */Ka: invoke_fiiiii,
+  /** @export */W: invoke_fiiiiii,
+  /** @export */q: invoke_i,
+  /** @export */b: invoke_ii,
+  /** @export */T: invoke_iid,
+  /** @export */ha: invoke_iif,
+  /** @export */U: invoke_iifff,
+  /** @export */kb: invoke_iifii,
+  /** @export */c: invoke_iii,
+  /** @export */g: invoke_iiii,
+  /** @export */ga: invoke_iiiidd,
+  /** @export */sa: invoke_iiiidi,
+  /** @export */I: invoke_iiiidii,
+  /** @export */da: invoke_iiiidiii,
+  /** @export */Mb: invoke_iiiiff,
+  /** @export */m: invoke_iiiii,
+  /** @export */ua: invoke_iiiiid,
+  /** @export */v: invoke_iiiiii,
+  /** @export */Xa: invoke_iiiiiiffii,
+  /** @export */r: invoke_iiiiiii,
+  /** @export */Jb: invoke_iiiiiiif,
+  /** @export */Q: invoke_iiiiiiii,
+  /** @export */J: invoke_iiiiiiiii,
+  /** @export */S: invoke_iiiiiiiiii,
+  /** @export */ca: invoke_iiiiiiiiiii,
+  /** @export */_: invoke_iiiiiiiiiiii,
+  /** @export */rb: invoke_j,
+  /** @export */pb: invoke_jii,
+  /** @export */qb: invoke_jiii,
+  /** @export */mb: invoke_jiiii,
+  /** @export */l: invoke_v,
+  /** @export */fb: invoke_vdiii,
+  /** @export */Wa: invoke_vffi,
+  /** @export */Ra: invoke_vfi,
+  /** @export */i: invoke_vi,
+  /** @export */L: invoke_vidi,
+  /** @export */V: invoke_vididdii,
+  /** @export */Aa: invoke_vidii,
+  /** @export */Lb: invoke_viffffffff,
+  /** @export */Ja: invoke_vifi,
+  /** @export */oa: invoke_vifii,
+  /** @export */f: invoke_vii,
+  /** @export */k: invoke_viid,
+  /** @export */jb: invoke_viidf,
+  /** @export */D: invoke_viididii,
+  /** @export */Za: invoke_viidiiid,
+  /** @export */$: invoke_viidiiiii,
+  /** @export */Nb: invoke_viif,
+  /** @export */La: invoke_viifff,
+  /** @export */Oa: invoke_viifffiiii,
+  /** @export */na: invoke_viiffifi,
+  /** @export */Sa: invoke_viifii,
+  /** @export */Kb: invoke_viifiifi,
+  /** @export */aa: invoke_viifiifii,
+  /** @export */X: invoke_viifiiiiiii,
+  /** @export */h: invoke_viii,
+  /** @export */R: invoke_viiid,
+  /** @export */u: invoke_viiidd,
+  /** @export */A: invoke_viiiddi,
+  /** @export */_a: invoke_viiiddii,
+  /** @export */y: invoke_viiidi,
+  /** @export */Pa: invoke_viiiff,
+  /** @export */Qa: invoke_viiifi,
+  /** @export */la: invoke_viiifii,
+  /** @export */j: invoke_viiii,
+  /** @export */K: invoke_viiiid,
+  /** @export */$a: invoke_viiiidd,
+  /** @export */Ba: invoke_viiiidi,
+  /** @export */ya: invoke_viiiidid,
+  /** @export */hb: invoke_viiiidiidiiiiiii,
+  /** @export */qa: invoke_viiiif,
+  /** @export */Pb: invoke_viiiiffi,
+  /** @export */pa: invoke_viiiifi,
+  /** @export */ib: invoke_viiiifiifiiiiiii,
+  /** @export */Ua: invoke_viiiifiiifiii,
+  /** @export */d: invoke_viiiii,
+  /** @export */fa: invoke_viiiiid,
+  /** @export */ma: invoke_viiiiifi,
+  /** @export */o: invoke_viiiiii,
+  /** @export */Ea: invoke_viiiiiiddi,
+  /** @export */ea: invoke_viiiiiidi,
+  /** @export */eb: invoke_viiiiiidiii,
+  /** @export */Qb: invoke_viiiiiif,
+  /** @export */Ya: invoke_viiiiiifffi,
+  /** @export */Va: invoke_viiiiiifiiiiiifiii,
+  /** @export */s: invoke_viiiiiii,
+  /** @export */gb: invoke_viiiiiiiddi,
+  /** @export */Ta: invoke_viiiiiiifiiiifiii,
+  /** @export */ra: invoke_viiiiiiifiiiiiifiii,
+  /** @export */w: invoke_viiiiiiii,
+  /** @export */wa: invoke_viiiiiiiidd,
+  /** @export */xa: invoke_viiiiiiiidf,
+  /** @export */Ib: invoke_viiiiiiiif,
+  /** @export */z: invoke_viiiiiiiii,
+  /** @export */cb: invoke_viiiiiiiiidd,
+  /** @export */bb: invoke_viiiiiiiiiddi,
+  /** @export */Ma: invoke_viiiiiiiiiffiii,
+  /** @export */C: invoke_viiiiiiiiii,
+  /** @export */za: invoke_viiiiiiiiiiddi,
+  /** @export */ba: invoke_viiiiiiiiiifii,
+  /** @export */M: invoke_viiiiiiiiiii,
+  /** @export */ta: invoke_viiiiiiiiiiiii,
+  /** @export */ab: invoke_viiiiiiiiiiiiii,
+  /** @export */Z: invoke_viiiiiiiiiiiiiii,
+  /** @export */Na: invoke_viiiiiiiiiiiiiiii,
+  /** @export */db: invoke_viiiiiiiiiiiiiiiiiiidi,
+  /** @export */N: _llvm_eh_typeid_for
+};
+var wasmExports;
+createWasm();
+var ___wasm_call_ctors = () => (___wasm_call_ctors = wasmExports["Sb"])();
+var _qrtool_angle = Module["_qrtool_angle"] = (a0, a1, a2, a3, a4) => (_qrtool_angle = Module["_qrtool_angle"] = wasmExports["Tb"])(a0, a1, a2, a3, a4);
+var _malloc = Module["_malloc"] = a0 => (_malloc = Module["_malloc"] = wasmExports["Vb"])(a0);
+var _free = Module["_free"] = a0 => (_free = Module["_free"] = wasmExports["Wb"])(a0);
+var _setThrew = (a0, a1) => (_setThrew = wasmExports["Xb"])(a0, a1);
+var __emscripten_tempret_set = a0 => (__emscripten_tempret_set = wasmExports["Yb"])(a0);
+var __emscripten_stack_restore = a0 => (__emscripten_stack_restore = wasmExports["Zb"])(a0);
+var __emscripten_stack_alloc = a0 => (__emscripten_stack_alloc = wasmExports["_b"])(a0);
+var _emscripten_stack_get_current = () => (_emscripten_stack_get_current = wasmExports["$b"])();
+var ___cxa_decrement_exception_refcount = a0 => (___cxa_decrement_exception_refcount = wasmExports["ac"])(a0);
+var ___cxa_increment_exception_refcount = a0 => (___cxa_increment_exception_refcount = wasmExports["bc"])(a0);
+var ___cxa_can_catch = (a0, a1, a2) => (___cxa_can_catch = wasmExports["cc"])(a0, a1, a2);
+var ___cxa_get_exception_ptr = a0 => (___cxa_get_exception_ptr = wasmExports["dc"])(a0);
+var dynCall_j = Module["dynCall_j"] = a0 => (dynCall_j = Module["dynCall_j"] = wasmExports["ec"])(a0);
+var dynCall_jiii = Module["dynCall_jiii"] = (a0, a1, a2, a3) => (dynCall_jiii = Module["dynCall_jiii"] = wasmExports["fc"])(a0, a1, a2, a3);
+var dynCall_jii = Module["dynCall_jii"] = (a0, a1, a2) => (dynCall_jii = Module["dynCall_jii"] = wasmExports["gc"])(a0, a1, a2);
+var dynCall_jiiii = Module["dynCall_jiiii"] = (a0, a1, a2, a3, a4) => (dynCall_jiiii = Module["dynCall_jiiii"] = wasmExports["hc"])(a0, a1, a2, a3, a4);
+function invoke_iiiiii(index, a1, a2, a3, a4, a5) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1, a2, a3, a4, a5);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) 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 !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_vi(index, a1) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_ii(index, a1) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiidd(index, a1, a2, a3, a4, a5) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiddi(index, a1, a2, a3, a4, a5, a6) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) 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 !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiii(index, a1, a2, a3, a4) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_iiii(index, a1, a2, a3) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1, a2, a3);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_v(index) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)();
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+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 !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_vii(index, a1, a2) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) 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 !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiii(index, a1, a2, a3, a4, a5, a6, a7) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_iifii(index, a1, a2, a3, a4) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1, a2, a3, a4);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiiddi(index, a1, a2, a3, a4, a5, a6, a7, a8, a9) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiid(index, a1, a2, a3, a4) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_i(index) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)();
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viidf(index, a1, a2, a3, a4) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_iiiiiii(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 !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_iif(index, a1, a2) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1, a2);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_iid(index, a1, a2) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1, a2);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiii(index, a1, a2, a3, a4, a5, a6) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) 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 !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiidi(index, a1, a2, a3, a4, a5) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_vididdii(index, a1, a2, a3, a4, a5, a6, a7) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_iiiidd(index, a1, a2, a3, a4, a5) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1, a2, a3, a4, a5);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_vidi(index, a1, a2, a3) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_diii(index, a1, a2, a3) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1, a2, a3);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_iiiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_fiii(index, a1, a2, a3) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1, a2, a3);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viid(index, a1, a2, a3) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viididii(index, a1, a2, a3, a4, a5, a6, a7) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiifiifiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiidiidiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiidi(index, a1, a2, a3, a4, a5, a6) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_dii(index, a1, a2) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1, a2);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_vidii(index, a1, a2, a3, a4) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiiiiiiddi(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiiiddi(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiid(index, a1, a2, a3, a4, a5) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiidid(index, a1, a2, a3, a4, a5, a6, a7) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_vdiii(index, a1, a2, a3, a4) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_iiiiiiii(index, a1, a2, a3, a4, a5, a6, a7) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiiiidf(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiiiidd(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_di(index, a1) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiid(index, a1, a2, a3, a4, a5, a6) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_diiii(index, a1, a2, a3, a4) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1, a2, a3, a4);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_iiiiid(index, a1, a2, a3, a4, a5) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1, a2, a3, a4, a5);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiidiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiidi(index, a1, a2, a3, a4, a5, a6, a7, a8) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_iiiidii(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 !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_iiiidiii(index, a1, a2, a3, a4, a5, a6, a7) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_iiiiiiiiiii(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 !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiiiiiiiiiiiiiiidi(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20, a21) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18, a19, a20, a21);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiiiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiiiiidd(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_iiiidi(index, a1, a2, a3, a4, a5) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1, a2, a3, a4, a5);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiiiiiddi(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiiiiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiidd(index, a1, a2, a3, a4, a5, a6) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiddii(index, a1, a2, a3, a4, a5, a6, a7) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viidiiid(index, a1, a2, a3, a4, a5, a6, a7) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_fii(index, a1, a2) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1, a2);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiifffi(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_iiiiiiffii(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 !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_vffi(index, a1, a2, a3) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiiiiiifii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiifiiiiiifiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiiifiiiiiifiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16, a17, a18);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiifiiifiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viifiifii(index, a1, a2, a3, a4, a5, a6, a7, a8) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiiifiiiifiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viifii(index, a1, a2, a3, a4, a5) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiif(index, a1, a2, a3, a4, a5) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_vfi(index, a1, a2) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiifi(index, a1, a2, a3, a4, a5, a6) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiifi(index, a1, a2, a3, a4, a5) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viifiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_fiiiiii(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 !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiff(index, a1, a2, a3, a4, a5) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_vifii(index, a1, a2, a3, a4) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viifffiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiffifi(index, a1, a2, a3, a4, a5, a6, a7) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiiiiiiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15, a16);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiiiiiffiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiif(index, a1, a2, a3, a4, a5, a6, a7) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiifi(index, a1, a2, a3, a4, a5, a6, a7) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viidiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiffi(index, a1, a2, a3, a4, a5, a6, a7) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiifii(index, a1, a2, a3, a4, a5, a6) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_fi(index, a1) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_fiiii(index, a1, a2, a3, a4) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1, a2, a3, a4);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_iifff(index, a1, a2, a3, a4) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1, a2, a3, a4);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viifff(index, a1, a2, a3, a4, a5) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viif(index, a1, a2, a3) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_fiiiii(index, a1, a2, a3, a4, a5) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1, a2, a3, a4, a5);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_iiiiff(index, a1, a2, a3, a4, a5) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1, a2, a3, a4, a5);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viffffffff(index, a1, a2, a3, a4, a5, a6, a7, a8, a9) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viifiifi(index, a1, a2, a3, a4, a5, a6, a7) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_iiiiiiif(index, a1, a2, a3, a4, a5, a6, a7) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiiiif(index, a1, a2, a3, a4, a5, a6, a7, a8, a9) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_vifi(index, a1, a2, a3) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_iiiiiiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11) {
+  var sp = stackSave();
+  try {
+    return getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_viiiiiiiiiiiiiii(index, a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15) {
+  var sp = stackSave();
+  try {
+    getWasmTableEntry(index)(a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, a14, a15);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_j(index) {
+  var sp = stackSave();
+  try {
+    return dynCall_j(index);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_jiii(index, a1, a2, a3) {
+  var sp = stackSave();
+  try {
+    return dynCall_jiii(index, a1, a2, a3);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_jii(index, a1, a2) {
+  var sp = stackSave();
+  try {
+    return dynCall_jii(index, a1, a2);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+function invoke_jiiii(index, a1, a2, a3, a4) {
+  var sp = stackSave();
+  try {
+    return dynCall_jiiii(index, a1, a2, a3, a4);
+  } catch (e) {
+    stackRestore(sp);
+    if (e !== e + 0) throw e;
+    _setThrew(1, 0);
+  }
+}
+
+// include: postamble.js
+// === Auto-generated postamble setup entry stuff ===
+Module["ccall"] = ccall;
+Module["cwrap"] = cwrap;
+var calledRun;
+dependenciesFulfilled = function runCaller() {
+  // If run has never been called, and we should call run (INVOKE_RUN is true, and Module.noInitialRun is not false)
+  if (!calledRun) run();
+  if (!calledRun) dependenciesFulfilled = runCaller;
+};
+
+// try this again later, after new deps are fulfilled
+function run() {
+  if (runDependencies > 0) {
+    return;
+  }
+  preRun();
+  // a preRun added a dependency, run will be called later
+  if (runDependencies > 0) {
+    return;
+  }
+  function doRun() {
+    var _Module$onRuntimeInit;
+    // run may have just been called through dependencies being fulfilled just in this very frame,
+    // or while the async setStatus time below was happening
+    if (calledRun) return;
+    calledRun = true;
+    Module["calledRun"] = true;
+    if (ABORT) return;
+    initRuntime();
+    (_Module$onRuntimeInit = Module["onRuntimeInitialized"]) === null || _Module$onRuntimeInit === void 0 || _Module$onRuntimeInit.call(Module);
+    postRun();
+  }
+  if (Module["setStatus"]) {
+    Module["setStatus"]("Running...");
+    setTimeout(() => {
+      setTimeout(() => Module["setStatus"](""), 1);
+      doRun();
+    }, 1);
+  } else {
+    doRun();
+  }
+}
+if (Module["preInit"]) {
+  if (typeof Module["preInit"] == "function") Module["preInit"] = [Module["preInit"]];
+  while (Module["preInit"].length > 0) {
+    Module["preInit"].pop()();
+  }
+}
+run();
+
+// end include: postamble.js
+// include: /Users/fam/src/themblem/alg/post.wx.js
+module.exports = Module;
diff --git a/scanner/project.config.json b/scanner/project.config.json
index a8b53ee..29916cf 100644
--- a/scanner/project.config.json
+++ b/scanner/project.config.json
@@ -38,10 +38,11 @@
     "useStaticServer": true,
     "ignoreUploadUnusedFiles": true,
     "condition": false,
-    "compileWorklet": false,
+    "compileWorklet": true,
     "localPlugins": false,
     "swc": false,
-    "disableSWC": true
+    "disableSWC": true,
+    "experimentalWorker": true
   },
   "compileType": "miniprogram",
   "condition": {},
diff --git a/scanner/project.private.config.json b/scanner/project.private.config.json
index ad8353f..c1062fb 100644
--- a/scanner/project.private.config.json
+++ b/scanner/project.private.config.json
@@ -3,16 +3,16 @@
         "miniprogram": {
             "list": [
                 {
-                    "name": "emblemscanner",
+                    "name": "emblemscanner force camera",
                     "pathName": "pages/emblemscanner/emblemscanner",
-                    "query": "debug=1&return_page=/pages/test_result_page/test_result_page",
+                    "query": "debug=1&no_web_view=1",
                     "scene": null,
                     "launchMode": "default"
                 },
                 {
-                    "name": "emblemscanner force camera",
+                    "name": "emblemscanner",
                     "pathName": "pages/emblemscanner/emblemscanner",
-                    "query": "debug=1&force_camera=1",
+                    "query": "debug=1&return_page=/pages/test_result_page/test_result_page",
                     "launchMode": "default",
                     "scene": null
                 },
@@ -22,13 +22,6 @@
                     "query": "q=https%3A%2F%2Fthemblem.com%2Fapi%2Fmini-prog-entry%2F%3Fcode%3D1279885739283%0A",
                     "launchMode": "default",
                     "scene": null
-                },
-                {
-                    "name": "pages/camera/camera",
-                    "pathName": "pages/camera/camera",
-                    "query": "",
-                    "launchMode": "default",
-                    "scene": null
                 }
             ]
         }