// Copyright 2010 The Emscripten Authors.  All rights reserved.
// Emscripten is available under two separate licenses, the MIT license and the
// University of Illinois/NCSA Open Source License.  Both these licenses can be
// found in the LICENSE file.

// 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(Module) { ..generated code.. }
// 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 : {};

// --pre-jses are emitted after the Module integration code, so that they can
// refer to Module (if they choose; they can also define Module)
// {{PRE_JSES}}

// 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 = {};
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;
};

// 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 = false;
var ENVIRONMENT_IS_WORKER = false;
var ENVIRONMENT_IS_NODE = false;
var ENVIRONMENT_HAS_NODE = false;
var ENVIRONMENT_IS_SHELL = false;
ENVIRONMENT_IS_WEB = typeof window === 'object';
ENVIRONMENT_IS_WORKER = typeof importScripts === 'function';
// A web environment like Electron.js can have Node enabled, so we must
// distinguish between Node-enabled environments and Node environments per se.
// This will allow the former to do things like mount NODEFS.
// Extended check using process.versions fixes issue #8816.
// (Also makes redundant the original check that 'require' is a function.)
ENVIRONMENT_HAS_NODE = typeof process === 'object' && typeof process.versions === 'object' && typeof process.versions.node === 'string';
ENVIRONMENT_IS_NODE = ENVIRONMENT_HAS_NODE && !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_WORKER;
ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;



// Three configurations we can be running in:
// 1) We could be the application main() thread running in the main JS UI thread. (ENVIRONMENT_IS_WORKER == false and ENVIRONMENT_IS_PTHREAD == false)
// 2) We could be the application main() thread proxied to worker. (with Emscripten -s PROXY_TO_WORKER=1) (ENVIRONMENT_IS_WORKER == true, ENVIRONMENT_IS_PTHREAD == false)
// 3) We could be an application pthread running in a worker. (ENVIRONMENT_IS_WORKER == true and ENVIRONMENT_IS_PTHREAD == true)

// ENVIRONMENT_IS_PTHREAD=true will have been preset in worker.js. Make it false in the main runtime thread.
var ENVIRONMENT_IS_PTHREAD = Module['ENVIRONMENT_IS_PTHREAD'] || false;
if (ENVIRONMENT_IS_PTHREAD) {
  // Grab imports from the pthread to local scope.
  buffer = Module['buffer'];
  tempDoublePtr = Module['tempDoublePtr'];
  DYNAMIC_BASE = Module['DYNAMIC_BASE'];
  DYNAMICTOP_PTR = Module['DYNAMICTOP_PTR'];
  // Note that not all runtime fields are imported above. Values for STACK_BASE, STACKTOP and STACK_MAX are not yet known at worker.js load time.
  // These will be filled in at pthread startup time (the 'run' message for a pthread - pthread start establishes the stack frame)
}




// In MODULARIZE mode _scriptDir needs to be captured already at the very top of the page immediately when the page is parsed, so it is generated there
// before the page load. In non-MODULARIZE modes generate it here.
var _scriptDir = (typeof document !== 'undefined' && document.currentScript) ? document.currentScript.src : undefined;

if (ENVIRONMENT_IS_NODE) {
  _scriptDir = __filename;
}

// `/` 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 read_,
    readAsync,
    readBinary,
    setWindowTitle;

var nodeFS;
var nodePath;

if (ENVIRONMENT_IS_NODE) {
  scriptDirectory = __dirname + '/';


  read_ = function shell_read(filename, binary) {
    if (!nodeFS) nodeFS = require('fs');
    if (!nodePath) nodePath = require('path');
    filename = nodePath['normalize'](filename);
    return nodeFS['readFileSync'](filename, binary ? null : 'utf8');
  };

  readBinary = function readBinary(filename) {
    var ret = read_(filename, true);
    if (!ret.buffer) {
      ret = new Uint8Array(ret);
    }
    assert(ret.buffer);
    return ret;
  };




  if (process['argv'].length > 1) {
    thisProgram = process['argv'][1].replace(/\\/g, '/');
  }

  arguments_ = process['argv'].slice(2);

  if (typeof module !== 'undefined') {
    module['exports'] = Module;
  }

  process['on']('uncaughtException', function(ex) {
    // suppress ExitStatus exceptions from showing an error
    if (!(ex instanceof ExitStatus)) {
      throw ex;
    }
  });

  process['on']('unhandledRejection', abort);

  quit_ = function(status) {
    process['exit'](status);
  };

  Module['inspect'] = function () { return '[Emscripten Module object]'; };

  var nodeWorkerThreads;
  try {
    nodeWorkerThreads = require('worker_threads');
  } catch (e) {
    console.error('The "worker_threads" module is not supported in this node.js build - perhaps a newer version is needed?');
    throw e;
  }
  Worker = nodeWorkerThreads.Worker;

} else
if (ENVIRONMENT_IS_SHELL) {


  if (typeof read != 'undefined') {
    read_ = function shell_read(f) {
      return read(f);
    };
  }

  readBinary = function readBinary(f) {
    var data;
    if (typeof readbuffer === 'function') {
      return new Uint8Array(readbuffer(f));
    }
    data = read(f, 'binary');
    assert(typeof data === 'object');
    return data;
  };

  if (typeof scriptArgs != 'undefined') {
    arguments_ = scriptArgs;
  } else if (typeof arguments != 'undefined') {
    arguments_ = arguments;
  }

  if (typeof quit === 'function') {
    quit_ = function(status) {
      quit(status);
    };
  }

  if (typeof print !== 'undefined') {
    // Prefer to use print/printErr where they exist, as they usually work better.
    if (typeof console === 'undefined') console = {};
    console.log = print;
    console.warn = console.error = typeof printErr !== 'undefined' ? printErr : print;
  }
} else

// 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_HAS_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 (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.indexOf('blob:') !== 0) {
    scriptDirectory = scriptDirectory.substr(0, scriptDirectory.lastIndexOf('/')+1);
  } else {
    scriptDirectory = '';
  }


  // Differentiate the Web Worker from the Node Worker case, as reading must
  // be done differently.
  if (ENVIRONMENT_HAS_NODE) {


  read_ = function shell_read(filename, binary) {
    if (!nodeFS) nodeFS = require('fs');
    if (!nodePath) nodePath = require('path');
    filename = nodePath['normalize'](filename);
    return nodeFS['readFileSync'](filename, binary ? null : 'utf8');
  };

  readBinary = function readBinary(filename) {
    var ret = read_(filename, true);
    if (!ret.buffer) {
      ret = new Uint8Array(ret);
    }
    assert(ret.buffer);
    return ret;
  };




  } else
  {


  read_ = function shell_read(url) {
      var xhr = new XMLHttpRequest();
      xhr.open('GET', url, false);
      xhr.send(null);
      return xhr.responseText;
  };

  if (ENVIRONMENT_IS_WORKER) {
    readBinary = function readBinary(url) {
        var xhr = new XMLHttpRequest();
        xhr.open('GET', url, false);
        xhr.responseType = 'arraybuffer';
        xhr.send(null);
        return new Uint8Array(xhr.response);
    };
  }

  readAsync = function readAsync(url, onload, onerror) {
    var xhr = new XMLHttpRequest();
    xhr.open('GET', url, true);
    xhr.responseType = 'arraybuffer';
    xhr.onload = function xhr_onload() {
      if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0
        onload(xhr.response);
        return;
      }
      onerror();
    };
    xhr.onerror = onerror;
    xhr.send(null);
  };




  }

  setWindowTitle = function(title) { document.title = title };
} else
{
}

if (ENVIRONMENT_HAS_NODE) {
  // Polyfill the performance object, which emscripten pthreads support
  // depends on for good timing.
  if (typeof performance === 'undefined') {
    performance = require('perf_hooks').performance;
  }
}

// Set up the out() and err() hooks, which are how we can print to stdout or
// stderr, respectively.
var out = Module['print'] || console.log.bind(console);
var err = Module['printErr'] || console.warn.bind(console);

// Merge back in the overrides
for (key in moduleOverrides) {
  if (moduleOverrides.hasOwnProperty(key)) {
    Module[key] = moduleOverrides[key];
  }
}
// Free the object hierarchy contained in the overrides, this lets the GC
// reclaim data used e.g. in memoryInitializerRequest, which is a large typed array.
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'];
if (Module['quit']) quit_ = Module['quit'];

// perform assertions in shell.js after we set up out() and err(), as otherwise if an assertion fails it cannot print the message

// TODO remove when SDL2 is fixed (also see above)



// Copyright 2017 The Emscripten Authors.  All rights reserved.
// Emscripten is available under two separate licenses, the MIT license and the
// University of Illinois/NCSA Open Source License.  Both these licenses can be
// found in the LICENSE file.

// {{PREAMBLE_ADDITIONS}}

var STACK_ALIGN = 16;


function dynamicAlloc(size) {
  var ret = HEAP32[DYNAMICTOP_PTR>>2];
  var end = (ret + size + 15) & -16;
  if (end > _emscripten_get_heap_size()) {
    abort();
  }
  HEAP32[DYNAMICTOP_PTR>>2] = end;
  return ret;
}

function alignMemory(size, factor) {
  if (!factor) factor = STACK_ALIGN; // stack alignment (16-byte) by default
  return Math.ceil(size / factor) * factor;
}

function getNativeTypeSize(type) {
  switch (type) {
    case 'i1': case 'i8': return 1;
    case 'i16': return 2;
    case 'i32': return 4;
    case 'i64': return 8;
    case 'float': return 4;
    case 'double': return 8;
    default: {
      if (type[type.length-1] === '*') {
        return 4; // A pointer
      } else if (type[0] === 'i') {
        var bits = parseInt(type.substr(1));
        assert(bits % 8 === 0, 'getNativeTypeSize invalid bits ' + bits + ', type ' + type);
        return bits / 8;
      } else {
        return 0;
      }
    }
  }
}

function warnOnce(text) {
  if (!warnOnce.shown) warnOnce.shown = {};
  if (!warnOnce.shown[text]) {
    warnOnce.shown[text] = 1;
    err(text);
  }
}

var asm2wasmImports = { // special asm2wasm imports
    "f64-rem": function(x, y) {
        return x % y;
    },
    "debugger": function() {
    }
};




// Wraps a JS function as a wasm function with a given signature.
function convertJsFunctionToWasm(func, sig) {

  // If the type reflection proposal is available, use the new
  // "WebAssembly.Function" constructor.
  // Otherwise, construct a minimal wasm module importing the JS function and
  // re-exporting it.
  if (typeof WebAssembly.Function === "function") {
    var typeNames = {
      'i': 'i32',
      'j': 'i64',
      'f': 'f32',
      'd': 'f64'
    };
    var type = {
      parameters: [],
      results: sig[0] == 'v' ? [] : [typeNames[sig[0]]]
    };
    for (var i = 1; i < sig.length; ++i) {
      type.parameters.push(typeNames[sig[i]]);
    }
    return new WebAssembly.Function(type, func);
  }

  // The module is static, with the exception of the type section, which is
  // generated based on the signature passed in.
  var typeSection = [
    0x01, // id: section,
    0x00, // length: 0 (placeholder)
    0x01, // count: 1
    0x60, // form: func
  ];
  var sigRet = sig.slice(0, 1);
  var sigParam = sig.slice(1);
  var typeCodes = {
    'i': 0x7f, // i32
    'j': 0x7e, // i64
    'f': 0x7d, // f32
    'd': 0x7c, // f64
  };

  // Parameters, length + signatures
  typeSection.push(sigParam.length);
  for (var i = 0; i < sigParam.length; ++i) {
    typeSection.push(typeCodes[sigParam[i]]);
  }

  // Return values, length + signatures
  // With no multi-return in MVP, either 0 (void) or 1 (anything else)
  if (sigRet == 'v') {
    typeSection.push(0x00);
  } else {
    typeSection = typeSection.concat([0x01, typeCodes[sigRet]]);
  }

  // Write the overall length of the type section back into the section header
  // (excepting the 2 bytes for the section id and length)
  typeSection[1] = typeSection.length - 2;

  // Rest of the module is static
  var bytes = new Uint8Array([
    0x00, 0x61, 0x73, 0x6d, // magic ("\0asm")
    0x01, 0x00, 0x00, 0x00, // version: 1
  ].concat(typeSection, [
    0x02, 0x07, // import section
      // (import "e" "f" (func 0 (type 0)))
      0x01, 0x01, 0x65, 0x01, 0x66, 0x00, 0x00,
    0x07, 0x05, // export section
      // (export "f" (func 0 (type 0)))
      0x01, 0x01, 0x66, 0x00, 0x00,
  ]));

   // We can compile this wasm module synchronously because it is very small.
  // This accepts an import (at "e.f"), that it reroutes to an export (at "f")
  var module = new WebAssembly.Module(bytes);
  var instance = new WebAssembly.Instance(module, {
    'e': {
      'f': func
    }
  });
  var wrappedFunc = instance.exports['f'];
  return wrappedFunc;
}

// Add a wasm function to the table.
function addFunctionWasm(func, sig) {
  var table = wasmTable;
  var ret = table.length;

  // Grow the table
  try {
    table.grow(1);
  } catch (err) {
    if (!err instanceof RangeError) {
      throw err;
    }
    throw 'Unable to grow wasm table. Use a higher value for RESERVED_FUNCTION_POINTERS or set ALLOW_TABLE_GROWTH.';
  }

  // Insert new element
  try {
    // Attempting to call this with JS function will cause of table.set() to fail
    table.set(ret, func);
  } catch (err) {
    if (!err instanceof TypeError) {
      throw err;
    }
    assert(typeof sig !== 'undefined', 'Missing signature argument to addFunction');
    var wrapped = convertJsFunctionToWasm(func, sig);
    table.set(ret, wrapped);
  }

  return ret;
}

function removeFunctionWasm(index) {
  // TODO(sbc): Look into implementing this to allow re-using of table slots
}

// 'sig' parameter is required for the llvm backend but only when func is not
// already a WebAssembly function.
function addFunction(func, sig) {

  return addFunctionWasm(func, sig);
}

function removeFunction(index) {
  removeFunctionWasm(index);
}

var funcWrappers = {};

function getFuncWrapper(func, sig) {
  if (!func) return; // on null pointer, return undefined
  assert(sig);
  if (!funcWrappers[sig]) {
    funcWrappers[sig] = {};
  }
  var sigCache = funcWrappers[sig];
  if (!sigCache[func]) {
    // optimize away arguments usage in common cases
    if (sig.length === 1) {
      sigCache[func] = function dynCall_wrapper() {
        return dynCall(sig, func);
      };
    } else if (sig.length === 2) {
      sigCache[func] = function dynCall_wrapper(arg) {
        return dynCall(sig, func, [arg]);
      };
    } else {
      // general case
      sigCache[func] = function dynCall_wrapper() {
        return dynCall(sig, func, Array.prototype.slice.call(arguments));
      };
    }
  }
  return sigCache[func];
}


function makeBigInt(low, high, unsigned) {
  return unsigned ? ((+((low>>>0)))+((+((high>>>0)))*4294967296.0)) : ((+((low>>>0)))+((+((high|0)))*4294967296.0));
}

function dynCall(sig, ptr, args) {
  if (args && args.length) {
    return Module['dynCall_' + sig].apply(null, [ptr].concat(args));
  } else {
    return Module['dynCall_' + sig].call(null, ptr);
  }
}

var tempRet0 = 0;

var setTempRet0 = function(value) {
  tempRet0 = value;
};

var getTempRet0 = function() {
  return tempRet0;
};


var Runtime = {
};

// The address globals begin at. Very low in memory, for code size and optimization opportunities.
// Above 0 is static memory, starting with globals.
// Then the stack.
// Then 'dynamic' memory for sbrk.
var GLOBAL_BASE = 1024;


// The wasm backend path does not have a way to set the stack max, so we can
// just implement this function in a trivial way
function establishStackSpace(base, max) {
  stackRestore(max);
}

// JS library code refers to Atomics in the manner used from asm.js, provide
// the same API here.
var Atomics_load = Atomics.load;
var Atomics_store = Atomics.store;
var Atomics_compareExchange = Atomics.compareExchange;


// === 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;if (Module['wasmBinary']) wasmBinary = Module['wasmBinary'];
var noExitRuntime;if (Module['noExitRuntime']) noExitRuntime = Module['noExitRuntime'];


if (typeof WebAssembly !== 'object') {
  err('no native wasm support detected');
}


// In MINIMAL_RUNTIME, setValue() and getValue() are only available when building with safe heap enabled, for heap safety checking.
// In traditional runtime, setValue() and getValue() are always available (although their use is highly discouraged due to perf penalties)

/** @type {function(number, number, string, boolean=)} */
function setValue(ptr, value, type, noSafe) {
  type = type || 'i8';
  if (type.charAt(type.length-1) === '*') type = 'i32'; // pointers are 32-bit
    switch(type) {
      case 'i1': HEAP8[((ptr)>>0)]=value; break;
      case 'i8': HEAP8[((ptr)>>0)]=value; break;
      case 'i16': HEAP16[((ptr)>>1)]=value; break;
      case 'i32': HEAP32[((ptr)>>2)]=value; break;
      case 'i64': (tempI64 = [value>>>0,(tempDouble=value,(+(Math_abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math_min((+(Math_floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math_ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[((ptr)>>2)]=tempI64[0],HEAP32[(((ptr)+(4))>>2)]=tempI64[1]); break;
      case 'float': HEAPF32[((ptr)>>2)]=value; break;
      case 'double': HEAPF64[((ptr)>>3)]=value; break;
      default: abort('invalid type for setValue: ' + type);
    }
}

/** @type {function(number, string, boolean=)} */
function getValue(ptr, type, noSafe) {
  type = type || 'i8';
  if (type.charAt(type.length-1) === '*') type = 'i32'; // pointers are 32-bit
    switch(type) {
      case 'i1': return HEAP8[((ptr)>>0)];
      case 'i8': return HEAP8[((ptr)>>0)];
      case 'i16': return HEAP16[((ptr)>>1)];
      case 'i32': return HEAP32[((ptr)>>2)];
      case 'i64': return HEAP32[((ptr)>>2)];
      case 'float': return HEAPF32[((ptr)>>2)];
      case 'double': return HEAPF64[((ptr)>>3)];
      default: abort('invalid type for getValue: ' + type);
    }
  return null;
}





// Wasm globals

var wasmMemory;

// In fastcomp asm.js, we don't need a wasm Table at all.
// In the wasm backend, we polyfill the WebAssembly object,
// so this creates a (non-native-wasm) table for us.
var wasmTable = new WebAssembly.Table({
  'initial': 58617,
  'maximum': 58617 + 0,
  'element': 'anyfunc'
});

// For sending to workers.
var wasmModule;
// Only workers actually use these field, but we refer to them from
// library_pthread (which exists on all threads) so this definition is useful
// to avoid accessing the global scope.
var threadInfoStruct = 0;
var selfThreadId = 0;
var __performance_now_clock_drift = 0;
var tempDoublePtr = 0;

//========================================
// Runtime essentials
//========================================

// whether we are quitting the application. no code should run after this.
// set in exit() and abort()
var ABORT = false;

// set by exit() and abort().  Passed to 'onExit' handler.
// NOTE: This is also used as the process return code code in shell environments
// but only when noExitRuntime is false.
var EXITSTATUS = 0;

/** @type {function(*, string=)} */
function assert(condition, text) {
  if (!condition) {
    abort('Assertion failed: ' + text);
  }
}

// Returns the C function with a specified identifier (for C++, you need to do manual name mangling)
function getCFunc(ident) {
  var func = Module['_' + ident]; // closure exported function
  assert(func, 'Cannot call unknown function ' + ident + ', make sure it is exported');
  return func;
}

// C calling interface.
function ccall(ident, returnType, argTypes, args, opts) {
  // For fast lookup of conversion functions
  var toC = {
    'string': function(str) {
      var ret = 0;
      if (str !== null && str !== undefined && str !== 0) { // null string
        // at most 4 bytes per UTF-8 code point, +1 for the trailing '\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);

  ret = convertReturnValue(ret);
  if (stack !== 0) stackRestore(stack);
  return ret;
}

function cwrap(ident, returnType, argTypes, opts) {
  argTypes = argTypes || [];
  // When the function takes numbers and returns a number, we can just return
  // the original function
  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 ALLOC_NORMAL = 0; // Tries to use _malloc()
var ALLOC_STACK = 1; // Lives for the duration of the current function call
var ALLOC_DYNAMIC = 2; // Cannot be freed except through sbrk
var ALLOC_NONE = 3; // Do not allocate

// allocate(): This is for internal use. You can use it yourself as well, but the interface
//             is a little tricky (see docs right below). The reason is that it is optimized
//             for multiple syntaxes to save space in generated code. So you should
//             normally not use allocate(), and instead allocate memory using _malloc(),
//             initialize it with setValue(), and so forth.
// @slab: An array of data, or a number. If a number, then the size of the block to allocate,
//        in *bytes* (note that this is sometimes confusing: the next parameter does not
//        affect this!)
// @types: Either an array of types, one for each byte (or 0 if no type at that position),
//         or a single type which is used for the entire block. This only matters if there
//         is initial data - if @slab is a number, then this does not matter at all and is
//         ignored.
// @allocator: How to allocate memory, see ALLOC_*
/** @type {function((TypedArray|Array<number>|number), string, number, number=)} */
function allocate(slab, types, allocator, ptr) {
  var zeroinit, size;
  if (typeof slab === 'number') {
    zeroinit = true;
    size = slab;
  } else {
    zeroinit = false;
    size = slab.length;
  }

  var singleType = typeof types === 'string' ? types : null;

  var ret;
  if (allocator == ALLOC_NONE) {
    ret = ptr;
  } else {
    ret = [_malloc,
    stackAlloc,
    dynamicAlloc][allocator](Math.max(size, singleType ? 1 : types.length));
  }

  if (zeroinit) {
    var stop;
    ptr = ret;
    assert((ret & 3) == 0);
    stop = ret + (size & ~3);
    for (; ptr < stop; ptr += 4) {
      HEAP32[((ptr)>>2)]=0;
    }
    stop = ret + size;
    while (ptr < stop) {
      HEAP8[((ptr++)>>0)]=0;
    }
    return ret;
  }

  if (singleType === 'i8') {
    if (slab.subarray || slab.slice) {
      HEAPU8.set(/** @type {!Uint8Array} */ (slab), ret);
    } else {
      HEAPU8.set(new Uint8Array(slab), ret);
    }
    return ret;
  }

  var i = 0, type, typeSize, previousType;
  while (i < size) {
    var curr = slab[i];

    type = singleType || types[i];
    if (type === 0) {
      i++;
      continue;
    }

    if (type == 'i64') type = 'i32'; // special case: we have one i32 here, and one i32 later

    setValue(ret+i, curr, type);

    // no need to look up size unless type changes, so cache it
    if (previousType !== type) {
      typeSize = getNativeTypeSize(type);
      previousType = type;
    }
    i += typeSize;
  }

  return ret;
}

// Allocate memory during any stage of startup - static memory early on, dynamic memory later, malloc when ready
function getMemory(size) {
  if (!runtimeInitialized) return dynamicAlloc(size);
  return _malloc(size);
}




/** @type {function(number, number=)} */
function Pointer_stringify(ptr, length) {
  abort("this function has been removed - you should use UTF8ToString(ptr, maxBytesToRead) instead!");
}

// Given a pointer 'ptr' to a null-terminated ASCII-encoded string in the emscripten HEAP, returns
// a copy of that string as a Javascript String object.

function AsciiToString(ptr) {
  var str = '';
  while (1) {
    var ch = HEAPU8[((ptr++)>>0)];
    if (!ch) return str;
    str += String.fromCharCode(ch);
  }
}

// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in ASCII form. The copy will require at most str.length+1 bytes of space in the HEAP.

function stringToAscii(str, outPtr) {
  return writeAsciiToMemory(str, outPtr, false);
}


// Given a pointer 'ptr' 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.


/**
 * @param {number} idx
 * @param {number=} maxBytesToRead
 * @return {string}
 */
function UTF8ArrayToString(u8Array, idx, maxBytesToRead) {
  var endIdx = idx + maxBytesToRead;

    var str = '';
    while (!(idx >= endIdx)) {
      // 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 = u8Array[idx++];
      // If not building with TextDecoder enabled, we don't know the string length, so scan for \0 byte.
      // If building with TextDecoder, we know exactly at what byte index the string ends, so checking for nulls here would be redundant.
      if (!u0) return str;
      if (!(u0 & 0x80)) { str += String.fromCharCode(u0); continue; }
      var u1 = u8Array[idx++] & 63;
      if ((u0 & 0xE0) == 0xC0) { str += String.fromCharCode(((u0 & 31) << 6) | u1); continue; }
      var u2 = u8Array[idx++] & 63;
      if ((u0 & 0xF0) == 0xE0) {
        u0 = ((u0 & 15) << 12) | (u1 << 6) | u2;
      } else {
        u0 = ((u0 & 7) << 18) | (u1 << 12) | (u2 << 6) | (u8Array[idx++] & 63);
      }

      if (u0 < 0x10000) {
        str += String.fromCharCode(u0);
      } else {
        var ch = u0 - 0x10000;
        str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF));
      }
    }
  return str;
}

// 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.
// 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
//                 style or the other.
/**
 * @param {number} ptr
 * @param {number=} maxBytesToRead
 * @return {string}
 */
function UTF8ToString(ptr, maxBytesToRead) {
  return ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead) : '';
}

// Copies the given Javascript String object 'str' to the given byte array at address 'outIdx',
// encoded in UTF8 form and null-terminated. The copy will require at most str.length*4+1 bytes of space in the HEAP.
// Use the function lengthBytesUTF8 to compute the exact number of bytes (excluding null terminator) that this function will write.
// Parameters:
//   str: the Javascript string to copy.
//   outU8Array: the array to copy to. Each index in this array is assumed to be one 8-byte element.
//   outIdx: The starting offset in the array to begin the copying.
//   maxBytesToWrite: The maximum number of bytes this function can write to the array.
//                    This count should include the null terminator,
//                    i.e. if maxBytesToWrite=1, only the null terminator will be written and nothing else.
//                    maxBytesToWrite=0 does not write any bytes to the output, not even the null terminator.
// Returns the number of bytes written, EXCLUDING the null terminator.

function stringToUTF8Array(str, outU8Array, outIdx, maxBytesToWrite) {
  if (!(maxBytesToWrite > 0)) // Parameter maxBytesToWrite is not optional. Negative values, 0, null, undefined and false each don't write out any bytes.
    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 >= 0xD800 && u <= 0xDFFF) {
      var u1 = str.charCodeAt(++i);
      u = 0x10000 + ((u & 0x3FF) << 10) | (u1 & 0x3FF);
    }
    if (u <= 0x7F) {
      if (outIdx >= endIdx) break;
      outU8Array[outIdx++] = u;
    } else if (u <= 0x7FF) {
      if (outIdx + 1 >= endIdx) break;
      outU8Array[outIdx++] = 0xC0 | (u >> 6);
      outU8Array[outIdx++] = 0x80 | (u & 63);
    } else if (u <= 0xFFFF) {
      if (outIdx + 2 >= endIdx) break;
      outU8Array[outIdx++] = 0xE0 | (u >> 12);
      outU8Array[outIdx++] = 0x80 | ((u >> 6) & 63);
      outU8Array[outIdx++] = 0x80 | (u & 63);
    } else {
      if (outIdx + 3 >= endIdx) break;
      outU8Array[outIdx++] = 0xF0 | (u >> 18);
      outU8Array[outIdx++] = 0x80 | ((u >> 12) & 63);
      outU8Array[outIdx++] = 0x80 | ((u >> 6) & 63);
      outU8Array[outIdx++] = 0x80 | (u & 63);
    }
  }
  // Null-terminate the pointer to the buffer.
  outU8Array[outIdx] = 0;
  return outIdx - startIdx;
}

// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in UTF8 form. The copy will require at most str.length*4+1 bytes of space in the HEAP.
// Use the function lengthBytesUTF8 to compute the exact number of bytes (excluding null terminator) that this function will write.
// Returns the number of bytes written, EXCLUDING the null terminator.

function stringToUTF8(str, outPtr, maxBytesToWrite) {
  return stringToUTF8Array(str, HEAPU8,outPtr, maxBytesToWrite);
}

// Returns the number of bytes the given Javascript string takes if encoded as a UTF8 byte array, EXCLUDING the null terminator byte.
function 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 u = str.charCodeAt(i); // possibly a lead surrogate
    if (u >= 0xD800 && u <= 0xDFFF) u = 0x10000 + ((u & 0x3FF) << 10) | (str.charCodeAt(++i) & 0x3FF);
    if (u <= 0x7F) ++len;
    else if (u <= 0x7FF) len += 2;
    else if (u <= 0xFFFF) len += 3;
    else len += 4;
  }
  return len;
}


// Given a pointer 'ptr' to a null-terminated UTF16LE-encoded string in the emscripten HEAP, returns
// a copy of that string as a Javascript String object.

function UTF16ToString(ptr) {
    var i = 0;

    var str = '';
    while (1) {
      var codeUnit = HEAP16[(((ptr)+(i*2))>>1)];
      if (codeUnit == 0) return str;
      ++i;
      // fromCharCode constructs a character from a UTF-16 code unit, so we can pass the UTF16 string right through.
      str += String.fromCharCode(codeUnit);
    }
}

// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in UTF16 form. The copy will require at most str.length*4+2 bytes of space in the HEAP.
// Use the function lengthBytesUTF16() to compute the exact number of bytes (excluding null terminator) that this function will write.
// Parameters:
//   str: the Javascript string to copy.
//   outPtr: Byte address in Emscripten HEAP where to write the string to.
//   maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null
//                    terminator, i.e. if maxBytesToWrite=2, only the null terminator will be written and nothing else.
//                    maxBytesToWrite<2 does not write any bytes to the output, not even the null terminator.
// Returns the number of bytes written, EXCLUDING the null terminator.

function stringToUTF16(str, outPtr, maxBytesToWrite) {
  // Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed.
  if (maxBytesToWrite === undefined) {
    maxBytesToWrite = 0x7FFFFFFF;
  }
  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;
}

// Returns the number of bytes the given Javascript string takes if encoded as a UTF16 byte array, EXCLUDING the null terminator byte.

function lengthBytesUTF16(str) {
  return str.length*2;
}

function UTF32ToString(ptr) {
  var i = 0;

  var str = '';
  while (1) {
    var utf32 = HEAP32[(((ptr)+(i*4))>>2)];
    if (utf32 == 0)
      return str;
    ++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 >= 0x10000) {
      var ch = utf32 - 0x10000;
      str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF));
    } else {
      str += String.fromCharCode(utf32);
    }
  }
}

// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in UTF32 form. The copy will require at most str.length*4+4 bytes of space in the HEAP.
// Use the function lengthBytesUTF32() to compute the exact number of bytes (excluding null terminator) that this function will write.
// Parameters:
//   str: the Javascript string to copy.
//   outPtr: Byte address in Emscripten HEAP where to write the string to.
//   maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null
//                    terminator, i.e. if maxBytesToWrite=4, only the null terminator will be written and nothing else.
//                    maxBytesToWrite<4 does not write any bytes to the output, not even the null terminator.
// Returns the number of bytes written, EXCLUDING the null terminator.

function stringToUTF32(str, outPtr, maxBytesToWrite) {
  // Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed.
  if (maxBytesToWrite === undefined) {
    maxBytesToWrite = 0x7FFFFFFF;
  }
  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 >= 0xD800 && codeUnit <= 0xDFFF) {
      var trailSurrogate = str.charCodeAt(++i);
      codeUnit = 0x10000 + ((codeUnit & 0x3FF) << 10) | (trailSurrogate & 0x3FF);
    }
    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;
}

// Returns the number of bytes the given Javascript string takes if encoded as a UTF16 byte array, EXCLUDING the null terminator byte.

function 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 >= 0xD800 && codeUnit <= 0xDFFF) ++i; // possibly a lead surrogate, so skip over the tail surrogate.
    len += 4;
  }

  return len;
}

// Allocate heap space for a JS string, and write it there.
// It is the responsibility of the caller to free() that memory.
function allocateUTF8(str) {
  var size = lengthBytesUTF8(str) + 1;
  var ret = _malloc(size);
  if (ret) stringToUTF8Array(str, HEAP8, ret, size);
  return ret;
}

// Allocate stack space for a JS string, and write it there.
function allocateUTF8OnStack(str) {
  var size = lengthBytesUTF8(str) + 1;
  var ret = stackAlloc(size);
  stringToUTF8Array(str, HEAP8, ret, size);
  return ret;
}

// Deprecated: This function should not be called because it is unsafe and does not provide
// a maximum length limit of how many bytes it is allowed to write. Prefer calling the
// function stringToUTF8Array() instead, which takes in a maximum length that can be used
// to be secure from out of bounds writes.
/** @deprecated */
function writeStringToMemory(string, buffer, dontAddNull) {
  warnOnce('writeStringToMemory is deprecated and should not be called! Use stringToUTF8() instead!');

  var /** @type {number} */ lastChar, /** @type {number} */ end;
  if (dontAddNull) {
    // stringToUTF8Array always appends null. If we don't want to do that, remember the
    // character that existed at the location where the null will be placed, and restore
    // that after the write (below).
    end = buffer + lengthBytesUTF8(string);
    lastChar = HEAP8[end];
  }
  stringToUTF8(string, buffer, Infinity);
  if (dontAddNull) HEAP8[end] = lastChar; // Restore the value under the null character.
}

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);
  }
  // Null-terminate the pointer to the HEAP.
  if (!dontAddNull) HEAP8[((buffer)>>0)]=0;
}




// Memory management

var PAGE_SIZE = 16384;
var WASM_PAGE_SIZE = 65536;
var ASMJS_PAGE_SIZE = 16777216;

function alignUp(x, multiple) {
  if (x % multiple > 0) {
    x += multiple - (x % multiple);
  }
  return x;
}

var HEAP,
/** @type {ArrayBuffer} */
  buffer,
/** @type {Int8Array} */
  HEAP8,
/** @type {Uint8Array} */
  HEAPU8,
/** @type {Int16Array} */
  HEAP16,
/** @type {Uint16Array} */
  HEAPU16,
/** @type {Int32Array} */
  HEAP32,
/** @type {Uint32Array} */
  HEAPU32,
/** @type {Float32Array} */
  HEAPF32,
/** @type {Float64Array} */
  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 STATIC_BASE = 1024,
    STACK_BASE = 15447248,
    STACKTOP = STACK_BASE,
    STACK_MAX = 10204368,
    DYNAMIC_BASE = 15447248,
    DYNAMICTOP_PTR = 10203408;


if (ENVIRONMENT_IS_PTHREAD) {

  // At the 'load' stage of Worker startup, we are just loading this script
  // but not ready to run yet. At 'run' we receive proper values for the stack
  // etc. and can launch a pthread. Set some fake values there meanwhile to
  // catch bugs, then set the real values in applyStackValues later.

  Module['applyStackValues'] = function(stackBase, stackTop, stackMax) {
    STACK_BASE = stackBase;
    STACKTOP = stackTop;
    STACK_MAX = stackMax;
  };

  // TODO DYNAMIC_BASE = Module['DYNAMIC_BASE'];
  // TODO DYNAMICTOP_PTR = Module['DYNAMICTOP_PTR'];
  // TODO tempDoublePtr = Module['tempDoublePtr'];
}


var TOTAL_STACK = 5242880;

var INITIAL_TOTAL_MEMORY = Module['TOTAL_MEMORY'] || 149880832;







// In standalone mode, the wasm creates the memory, and the user can't provide it.
// In non-standalone/normal mode, we create the memory here.

// Create the main memory. (Note: this isn't used in STANDALONE_WASM mode since the wasm
// memory is created in the wasm, not in JS.)
if (ENVIRONMENT_IS_PTHREAD) {
  wasmMemory = Module['wasmMemory'];
  buffer = Module['buffer'];
} else {

  if (Module['wasmMemory']) {
    wasmMemory = Module['wasmMemory'];
  } else
  {
    wasmMemory = new WebAssembly.Memory({
      'initial': INITIAL_TOTAL_MEMORY / WASM_PAGE_SIZE
      ,
      'maximum': INITIAL_TOTAL_MEMORY / WASM_PAGE_SIZE
      ,
      'shared': true
    });
    if (!(wasmMemory.buffer instanceof SharedArrayBuffer)) {
      err('requested a shared WebAssembly.Memory but the returned buffer is not a SharedArrayBuffer, indicating that while the browser has SharedArrayBuffer it does not have WebAssembly threads support - you may need to set a flag');
      if (ENVIRONMENT_HAS_NODE) {
        console.log('(on node you may need: --experimental-wasm-threads --experimental-wasm-bulk-memory and also use a recent version)');
      }
      throw Error('bad memory');
    }
  }

}

if (wasmMemory) {
  buffer = wasmMemory.buffer;
}

// If the user provides an incorrect length, just use that length instead rather than providing the user to
// specifically provide the memory length with Module['TOTAL_MEMORY'].
INITIAL_TOTAL_MEMORY = buffer.byteLength;
updateGlobalBufferAndViews(buffer);

if (!ENVIRONMENT_IS_PTHREAD) { // Pthreads have already initialized these variables in src/worker.js, where they were passed to the thread worker at startup time
HEAP32[DYNAMICTOP_PTR>>2] = DYNAMIC_BASE;
}










function callRuntimeCallbacks(callbacks) {
  while(callbacks.length > 0) {
    var callback = callbacks.shift();
    if (typeof callback == 'function') {
      callback();
      continue;
    }
    var func = callback.func;
    if (typeof func === 'number') {
      if (callback.arg === undefined) {
        Module['dynCall_v'](func);
      } else {
        Module['dynCall_vi'](func, callback.arg);
      }
    } else {
      func(callback.arg === undefined ? null : callback.arg);
    }
  }
}

var __ATPRERUN__  = []; // functions called before the runtime is initialized
var __ATINIT__    = []; // functions called during startup
var __ATMAIN__    = []; // functions called when main() is to be run
var __ATEXIT__    = []; // functions called during shutdown
var __ATPOSTRUN__ = []; // functions called after the main() is called

var runtimeInitialized = false;
var runtimeExited = false;

if (ENVIRONMENT_IS_PTHREAD) runtimeInitialized = true; // The runtime is hosted in the main thread, and bits shared to pthreads via SharedArrayBuffer. No need to init again in pthread.

function preRun() {
  if (ENVIRONMENT_IS_PTHREAD) return; // PThreads reuse the runtime from the main thread.

  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();
TTY.init();
  callRuntimeCallbacks(__ATINIT__);
}

function preMain() {
  if (ENVIRONMENT_IS_PTHREAD) return; // PThreads reuse the runtime from the main thread.
  FS.ignorePermissions = false;
  callRuntimeCallbacks(__ATMAIN__);
}

function exitRuntime() {
  if (ENVIRONMENT_IS_PTHREAD) return; // PThreads reuse the runtime from the main thread.
  runtimeExited = true;
}

function postRun() {
  if (ENVIRONMENT_IS_PTHREAD) return; // PThreads reuse the runtime from the main thread.

  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 addOnPreMain(cb) {
  __ATMAIN__.unshift(cb);
}

function addOnExit(cb) {
}

function addOnPostRun(cb) {
  __ATPOSTRUN__.unshift(cb);
}

function unSign(value, bits, ignore) {
  if (value >= 0) {
    return value;
  }
  return bits <= 32 ? 2*Math.abs(1 << (bits-1)) + value // Need some trickery, since if bits == 32, we are right at the limit of the bits JS uses in bitshifts
                    : Math.pow(2, bits)         + value;
}
function reSign(value, bits, ignore) {
  if (value <= 0) {
    return value;
  }
  var half = bits <= 32 ? Math.abs(1 << (bits-1)) // abs is needed if bits == 32
                        : Math.pow(2, bits-1);
  if (value >= half && (bits <= 32 || value > half)) { // for huge values, we can hit the precision limit and always get true here. so don't do that
                                                       // but, in general there is no perfect solution here. With 64-bit ints, we get rounding and errors
                                                       // TODO: In i64 mode 1, resign the two parts separately and safely
    value = -2*half + value; // Cannot bitshift half, as it may be at the limit of the bits JS uses in bitshifts
  }
  return value;
}



var Math_abs = Math.abs;
var Math_cos = Math.cos;
var Math_sin = Math.sin;
var Math_tan = Math.tan;
var Math_acos = Math.acos;
var Math_asin = Math.asin;
var Math_atan = Math.atan;
var Math_atan2 = Math.atan2;
var Math_exp = Math.exp;
var Math_log = Math.log;
var Math_sqrt = Math.sqrt;
var Math_ceil = Math.ceil;
var Math_floor = Math.floor;
var Math_pow = Math.pow;
var Math_imul = Math.imul;
var Math_fround = Math.fround;
var Math_round = Math.round;
var Math_min = Math.min;
var Math_max = Math.max;
var Math_clz32 = Math.clz32;
var Math_trunc = Math.trunc;



// 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 runDependencyWatcher = null;
var dependenciesFulfilled = null; // overridden to take different actions when all run dependencies are fulfilled

function getUniqueRunDependency(id) {
  return id;
}

function addRunDependency(id) {
  // We should never get here in pthreads (could no-op this out if called in pthreads, but that might indicate a bug in caller side,
  // so good to be very explicit)
  assert(!ENVIRONMENT_IS_PTHREAD, "addRunDependency cannot be used in a pthread worker");
  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(); // can add another dependenciesFulfilled
    }
  }
}

Module["preloadedImages"] = {}; // maps url to image data
Module["preloadedAudios"] = {}; // maps url to audio data


function abort(what) {
  if (Module['onAbort']) {
    Module['onAbort'](what);
  }

  if (ENVIRONMENT_IS_PTHREAD) console.error('Pthread aborting at ' + new Error().stack);
  what += '';
  out(what);
  err(what);

  ABORT = true;
  EXITSTATUS = 1;

  what = 'abort(' + what + '). Build with -s ASSERTIONS=1 for more info.';

  // Throw 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.
  throw new WebAssembly.RuntimeError(what);
}


var memoryInitializer = null;







// Copyright 2017 The Emscripten Authors.  All rights reserved.
// Emscripten is available under two separate licenses, the MIT license and the
// University of Illinois/NCSA Open Source License.  Both these licenses can be
// found in the LICENSE file.

// 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.
function isDataURI(filename) {
  return String.prototype.startsWith ?
      filename.startsWith(dataURIPrefix) :
      filename.indexOf(dataURIPrefix) === 0;
}




var wasmBinaryFile = 'x2t.wasm';
if (!isDataURI(wasmBinaryFile)) {
  wasmBinaryFile = locateFile(wasmBinaryFile);
}

function getBinary() {
  try {
    if (wasmBinary) {
      return new Uint8Array(wasmBinary);
    }

    if (readBinary) {
      return readBinary(wasmBinaryFile);
    } else {
      throw "both async and sync fetching of the wasm failed";
    }
  }
  catch (err) {
    abort(err);
  }
}

function getBinaryPromise() {
  // if we don't have the binary yet, and have the Fetch api, use that
  // in some environments, like Electron's render process, Fetch api may be present, but have a different context than expected, let's only use it on the Web
  if (!wasmBinary && (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) && 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();
    });
  }
  // Otherwise, getBinary should be able to get it synchronously
  return new Promise(function(resolve, reject) {
    resolve(getBinary());
  });
}



// Create the wasm instance.
// Receives the wasm imports, returns the exports.
function createWasm() {
  // prepare imports
  var info = {
    'env': asmLibraryArg,
    'wasi_unstable': asmLibraryArg
  };
  // 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
  function receiveInstance(instance, module) {
    var exports = instance.exports;
    Module['asm'] = exports;
    // Keep a reference to the compiled module so we can post it to the workers.
    wasmModule = module;
    // Instantiation is synchronous in pthreads and we assert on run dependencies.
    if (!ENVIRONMENT_IS_PTHREAD) removeRunDependency('wasm-instantiate');
  }
   // we can't run yet (except in a pthread, where we have a custom sync instantiator)
  if (!ENVIRONMENT_IS_PTHREAD) { addRunDependency('wasm-instantiate'); }


  function receiveInstantiatedSource(output) {
    // 'output' is a WebAssemblyInstantiatedSource object which has both the module and instance.
    // receiveInstance() will swap in the exports (to Module.asm) so they can be called
    receiveInstance(output['instance'], output['module']);
  }


  function instantiateArrayBuffer(receiver) {
    return getBinaryPromise().then(function(binary) {
      return WebAssembly.instantiate(binary, info);
    }).then(receiver, function(reason) {
      err('failed to asynchronously prepare wasm: ' + reason);
      abort(reason);
    });
  }

  // Prefer streaming instantiation if available.
  function instantiateAsync() {
    if (!wasmBinary &&
        typeof WebAssembly.instantiateStreaming === 'function' &&
        !isDataURI(wasmBinaryFile) &&
        typeof fetch === 'function') {
      fetch(wasmBinaryFile, { credentials: 'same-origin' }).then(function (response) {
        var result = WebAssembly.instantiateStreaming(response, info);
        return result.then(receiveInstantiatedSource, function(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');
            instantiateArrayBuffer(receiveInstantiatedSource);
          });
      });
    } else {
      return instantiateArrayBuffer(receiveInstantiatedSource);
    }
  }
  // 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.
  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 {}; // no exports yet; we'll fill them in later
}


// Globals used by JS i64 conversions
var tempDouble;
var tempI64;

// === Body ===

var ASM_CONSTS = {
  52684: function() {FS.mkdir('/working'); FS.mount(NODEFS, { root: '.' }, '/working');},  
 8571840: function() {throw 'Canceled!'},  
 8571979: function() {postMessage({cmd : 'processQueuedMainThreadWork'})},  
 8572030: function($0) {if (!ENVIRONMENT_IS_PTHREAD) { if (!PThread.pthreads[$0] || !PThread.pthreads[$0].worker) { return 0; } PThread.pthreads[$0].worker.postMessage({cmd : 'processThreadQueue'}); } else { postMessage({targetThread : $0, cmd : 'processThreadQueue'}); } return 1;},  
 8572398: function() {return !!(Module['canvas'])},  
 8572434: function() {noExitRuntime = true}
};

// Avoid creating a new array
var _readAsmConstArgsArray = [];

function readAsmConstArgs(sigPtr, buf) {
  var args = _readAsmConstArgsArray;
  args.length = 0;
  while (1) {
    var ch = HEAPU8[sigPtr++];
    if (!ch) return args;
    if (ch === 'd'.charCodeAt(0) || ch === 'f'.charCodeAt(0)) {
      buf = alignMemory(buf, 8);
      args.push(HEAPF64[(buf >> 3)]);
      buf += 8;
    } else if (ch === 'i'.charCodeAt(0)) {
      buf = alignMemory(buf, 4);
      args.push(HEAP32[(buf >> 2)]);
      buf += 4;
    }
  }
}


function _emscripten_asm_const_iii(code, sigPtr, argbuf) {
  var args = readAsmConstArgs(sigPtr, argbuf);
  return ASM_CONSTS[code].apply(null, args);
}function initPthreadsJS(){ PThread.initRuntime(); }



// STATICTOP = STATIC_BASE + 10203344;
/* global initializers */ if (!ENVIRONMENT_IS_PTHREAD) __ATINIT__.push({ func: function() { ___wasm_call_ctors() } });



/* no memory initializer */
// {{PRE_LIBRARY}}


  function demangle(func) {
      return func;
    }
  Module["demangle"] = demangle;

  function demangleAll(text) {
      var regex =
        /\b_Z[\w\d_]+/g;
      return text.replace(regex,
        function(x) {
          var y = demangle(x);
          return x === y ? x : (y + ' [' + x + ']');
        });
    }
  Module["demangleAll"] = demangleAll;

  function jsStackTrace() {
      var err = new Error();
      if (!err.stack) {
        // IE10+ special cases: It does have callstack info, but it is only populated if an Error object is thrown,
        // so try that as a special-case.
        try {
          throw new Error(0);
        } catch(e) {
          err = e;
        }
        if (!err.stack) {
          return '(no stack trace available)';
        }
      }
      return err.stack.toString();
    }
  Module["jsStackTrace"] = jsStackTrace;

  function stackTrace() {
      var js = jsStackTrace();
      if (Module['extraStackTrace']) js += '\n' + Module['extraStackTrace']();
      return demangleAll(js);
    }
  Module["stackTrace"] = stackTrace;

  function __ZN12CPdfRenderer10SaveToFileERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE(
  ) {
  err('missing function: _ZN12CPdfRenderer10SaveToFileERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE'); abort(-1);
  }
  Module["__ZN12CPdfRenderer10SaveToFileERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE"] = __ZN12CPdfRenderer10SaveToFileERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE;

  function __ZN12CPdfRenderer11SetPasswordERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE(
  ) {
  err('missing function: _ZN12CPdfRenderer11SetPasswordERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE'); abort(-1);
  }
  Module["__ZN12CPdfRenderer11SetPasswordERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE"] = __ZN12CPdfRenderer11SetPasswordERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE;

  function __ZN12CPdfRenderer13SetDocumentIDERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE(
  ) {
  err('missing function: _ZN12CPdfRenderer13SetDocumentIDERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE'); abort(-1);
  }
  Module["__ZN12CPdfRenderer13SetDocumentIDERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE"] = __ZN12CPdfRenderer13SetDocumentIDERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE;

  function __ZN12CPdfRenderer13SetTempFolderERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE(
  ) {
  err('missing function: _ZN12CPdfRenderer13SetTempFolderERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE'); abort(-1);
  }
  Module["__ZN12CPdfRenderer13SetTempFolderERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE"] = __ZN12CPdfRenderer13SetTempFolderERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE;

  function __ZN12CPdfRenderer14SetThemesPlaceERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE(
  ) {
  err('missing function: _ZN12CPdfRenderer14SetThemesPlaceERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE'); abort(-1);
  }
  Module["__ZN12CPdfRenderer14SetThemesPlaceERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE"] = __ZN12CPdfRenderer14SetThemesPlaceERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE;

  function __ZN12CPdfRenderer15OnlineWordToPdfERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEES8_(
  ) {
  err('missing function: _ZN12CPdfRenderer15OnlineWordToPdfERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEES8_'); abort(-1);
  }
  Module["__ZN12CPdfRenderer15OnlineWordToPdfERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEES8_"] = __ZN12CPdfRenderer15OnlineWordToPdfERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEES8_;

  function __ZN12CPdfRenderer25OnlineWordToPdfFromBinaryERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEES8_(
  ) {
  err('missing function: _ZN12CPdfRenderer25OnlineWordToPdfFromBinaryERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEES8_'); abort(-1);
  }
  Module["__ZN12CPdfRenderer25OnlineWordToPdfFromBinaryERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEES8_"] = __ZN12CPdfRenderer25OnlineWordToPdfFromBinaryERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEES8_;

  function __ZN12CPdfRendererC1EPN7NSFonts17IApplicationFontsEb(
  ) {
  err('missing function: _ZN12CPdfRendererC1EPN7NSFonts17IApplicationFontsEb'); abort(-1);
  }
  Module["__ZN12CPdfRendererC1EPN7NSFonts17IApplicationFontsEb"] = __ZN12CPdfRendererC1EPN7NSFonts17IApplicationFontsEb;

  function __ZN12CPdfRendererD1Ev(
  ) {
  err('missing function: _ZN12CPdfRendererD1Ev'); abort(-1);
  }
  Module["__ZN12CPdfRendererD1Ev"] = __ZN12CPdfRendererD1Ev;

  function __ZN14NSDoctRenderer13CDoctrenderer18GetImagesInChangesEv(
  ) {
  err('missing function: _ZN14NSDoctRenderer13CDoctrenderer18GetImagesInChangesEv'); abort(-1);
  }
  Module["__ZN14NSDoctRenderer13CDoctrenderer18GetImagesInChangesEv"] = __ZN14NSDoctRenderer13CDoctrenderer18GetImagesInChangesEv;

  function __ZN14NSDoctRenderer13CDoctrenderer7ExecuteERKNSt3__212basic_stringIwNS1_11char_traitsIwEENS1_9allocatorIwEEEERS7_(
  ) {
  err('missing function: _ZN14NSDoctRenderer13CDoctrenderer7ExecuteERKNSt3__212basic_stringIwNS1_11char_traitsIwEENS1_9allocatorIwEEEERS7_'); abort(-1);
  }
  Module["__ZN14NSDoctRenderer13CDoctrenderer7ExecuteERKNSt3__212basic_stringIwNS1_11char_traitsIwEENS1_9allocatorIwEEEERS7_"] = __ZN14NSDoctRenderer13CDoctrenderer7ExecuteERKNSt3__212basic_stringIwNS1_11char_traitsIwEENS1_9allocatorIwEEEERS7_;

  function __ZN14NSDoctRenderer13CDoctrendererC1ERKNSt3__212basic_stringIwNS1_11char_traitsIwEENS1_9allocatorIwEEEE(
  ) {
  err('missing function: _ZN14NSDoctRenderer13CDoctrendererC1ERKNSt3__212basic_stringIwNS1_11char_traitsIwEENS1_9allocatorIwEEEE'); abort(-1);
  }
  Module["__ZN14NSDoctRenderer13CDoctrendererC1ERKNSt3__212basic_stringIwNS1_11char_traitsIwEENS1_9allocatorIwEEEE"] = __ZN14NSDoctRenderer13CDoctrendererC1ERKNSt3__212basic_stringIwNS1_11char_traitsIwEENS1_9allocatorIwEEEE;

  function __ZN14NSDoctRenderer13CDoctrendererD1Ev(
  ) {
  err('missing function: _ZN14NSDoctRenderer13CDoctrendererD1Ev'); abort(-1);
  }
  Module["__ZN14NSDoctRenderer13CDoctrendererD1Ev"] = __ZN14NSDoctRenderer13CDoctrendererD1Ev;

  function __ZN14NSHtmlRenderer17CASCHTMLRenderer316CreateOfficeFileENSt3__212basic_stringIwNS1_11char_traitsIwEENS1_9allocatorIwEEEERKS7_(
  ) {
  err('missing function: _ZN14NSHtmlRenderer17CASCHTMLRenderer316CreateOfficeFileENSt3__212basic_stringIwNS1_11char_traitsIwEENS1_9allocatorIwEEEERKS7_'); abort(-1);
  }
  Module["__ZN14NSHtmlRenderer17CASCHTMLRenderer316CreateOfficeFileENSt3__212basic_stringIwNS1_11char_traitsIwEENS1_9allocatorIwEEEERKS7_"] = __ZN14NSHtmlRenderer17CASCHTMLRenderer316CreateOfficeFileENSt3__212basic_stringIwNS1_11char_traitsIwEENS1_9allocatorIwEEEERKS7_;

  function __ZN14NSHtmlRenderer17CASCHTMLRenderer39CloseFileEb(
  ) {
  err('missing function: _ZN14NSHtmlRenderer17CASCHTMLRenderer39CloseFileEb'); abort(-1);
  }
  Module["__ZN14NSHtmlRenderer17CASCHTMLRenderer39CloseFileEb"] = __ZN14NSHtmlRenderer17CASCHTMLRenderer39CloseFileEb;

  function __ZN14NSHtmlRenderer17CASCHTMLRenderer3C1Ev(
  ) {
  err('missing function: _ZN14NSHtmlRenderer17CASCHTMLRenderer3C1Ev'); abort(-1);
  }
  Module["__ZN14NSHtmlRenderer17CASCHTMLRenderer3C1Ev"] = __ZN14NSHtmlRenderer17CASCHTMLRenderer3C1Ev;

  function __ZN14NSHtmlRenderer17CASCHTMLRenderer3D1Ev(
  ) {
  err('missing function: _ZN14NSHtmlRenderer17CASCHTMLRenderer3D1Ev'); abort(-1);
  }
  Module["__ZN14NSHtmlRenderer17CASCHTMLRenderer3D1Ev"] = __ZN14NSHtmlRenderer17CASCHTMLRenderer3D1Ev;

  function __ZN18NSUnicodeConverter17CUnicodeConverter11fromUnicodeEPKwRKjPKc(
  ) {
  err('missing function: _ZN18NSUnicodeConverter17CUnicodeConverter11fromUnicodeEPKwRKjPKc'); abort(-1);
  }
  Module["__ZN18NSUnicodeConverter17CUnicodeConverter11fromUnicodeEPKwRKjPKc"] = __ZN18NSUnicodeConverter17CUnicodeConverter11fromUnicodeEPKwRKjPKc;

  function __ZN18NSUnicodeConverter17CUnicodeConverter14toUnicodeExactEPKcRKjS2_(
  ) {
  err('missing function: _ZN18NSUnicodeConverter17CUnicodeConverter14toUnicodeExactEPKcRKjS2_'); abort(-1);
  }
  Module["__ZN18NSUnicodeConverter17CUnicodeConverter14toUnicodeExactEPKcRKjS2_"] = __ZN18NSUnicodeConverter17CUnicodeConverter14toUnicodeExactEPKcRKjS2_;

  function __ZN18NSUnicodeConverter17CUnicodeConverter14toUnicodeExactEPKcRKji(
  ) {
  err('missing function: _ZN18NSUnicodeConverter17CUnicodeConverter14toUnicodeExactEPKcRKji'); abort(-1);
  }
  Module["__ZN18NSUnicodeConverter17CUnicodeConverter14toUnicodeExactEPKcRKji"] = __ZN18NSUnicodeConverter17CUnicodeConverter14toUnicodeExactEPKcRKji;

  function __ZN18NSUnicodeConverter17CUnicodeConverter9toUnicodeEPKcRKjS2_(
  ) {
  err('missing function: _ZN18NSUnicodeConverter17CUnicodeConverter9toUnicodeEPKcRKjS2_'); abort(-1);
  }
  Module["__ZN18NSUnicodeConverter17CUnicodeConverter9toUnicodeEPKcRKjS2_"] = __ZN18NSUnicodeConverter17CUnicodeConverter9toUnicodeEPKcRKjS2_;

  function __ZN18NSUnicodeConverter17CUnicodeConverter9toUnicodeERKNSt3__212basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEEPKc(
  ) {
  err('missing function: _ZN18NSUnicodeConverter17CUnicodeConverter9toUnicodeERKNSt3__212basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEEPKc'); abort(-1);
  }
  Module["__ZN18NSUnicodeConverter17CUnicodeConverter9toUnicodeERKNSt3__212basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEEPKc"] = __ZN18NSUnicodeConverter17CUnicodeConverter9toUnicodeERKNSt3__212basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEEPKc;

  function __ZN18NSUnicodeConverter17CUnicodeConverter9toUnicodeERKNSt3__212basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEEi(
  ) {
  err('missing function: _ZN18NSUnicodeConverter17CUnicodeConverter9toUnicodeERKNSt3__212basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEEi'); abort(-1);
  }
  Module["__ZN18NSUnicodeConverter17CUnicodeConverter9toUnicodeERKNSt3__212basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEEi"] = __ZN18NSUnicodeConverter17CUnicodeConverter9toUnicodeERKNSt3__212basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEEi;

  function __ZN18NSUnicodeConverter17CUnicodeConverterC1Ev(
  ) {
  err('missing function: _ZN18NSUnicodeConverter17CUnicodeConverterC1Ev'); abort(-1);
  }
  Module["__ZN18NSUnicodeConverter17CUnicodeConverterC1Ev"] = __ZN18NSUnicodeConverter17CUnicodeConverterC1Ev;

  function __ZN18NSUnicodeConverter17CUnicodeConverterD1Ev(
  ) {
  err('missing function: _ZN18NSUnicodeConverter17CUnicodeConverterD1Ev'); abort(-1);
  }
  Module["__ZN18NSUnicodeConverter17CUnicodeConverterD1Ev"] = __ZN18NSUnicodeConverter17CUnicodeConverterD1Ev;

  function __ZN23CFileDownloader_privateC1ENSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEEb(
  ) {
  err('missing function: _ZN23CFileDownloader_privateC1ENSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEEb'); abort(-1);
  }
  Module["__ZN23CFileDownloader_privateC1ENSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEEb"] = __ZN23CFileDownloader_privateC1ENSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEEb;

  function __ZN8CXpsFileC1EPN7NSFonts17IApplicationFontsE(
  ) {
  err('missing function: _ZN8CXpsFileC1EPN7NSFonts17IApplicationFontsE'); abort(-1);
  }
  Module["__ZN8CXpsFileC1EPN7NSFonts17IApplicationFontsE"] = __ZN8CXpsFileC1EPN7NSFonts17IApplicationFontsE;

  function __ZN9CDjVuFileC1EPN7NSFonts17IApplicationFontsE(
  ) {
  err('missing function: _ZN9CDjVuFileC1EPN7NSFonts17IApplicationFontsE'); abort(-1);
  }
  Module["__ZN9CDjVuFileC1EPN7NSFonts17IApplicationFontsE"] = __ZN9CDjVuFileC1EPN7NSFonts17IApplicationFontsE;

  function __ZN9CHtmlFile10ConvertMhtERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEES8_S8_(
  ) {
  err('missing function: _ZN9CHtmlFile10ConvertMhtERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEES8_S8_'); abort(-1);
  }
  Module["__ZN9CHtmlFile10ConvertMhtERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEES8_S8_"] = __ZN9CHtmlFile10ConvertMhtERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEES8_S8_;

  function __ZN9CHtmlFile11ConvertEpubERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEERS6_S8_S8_(
  ) {
  err('missing function: _ZN9CHtmlFile11ConvertEpubERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEERS6_S8_S8_'); abort(-1);
  }
  Module["__ZN9CHtmlFile11ConvertEpubERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEERS6_S8_S8_"] = __ZN9CHtmlFile11ConvertEpubERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEERS6_S8_S8_;

  function __ZN9CHtmlFile7ConvertERKNSt3__26vectorINS0_12basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEENS5_IS7_EEEERKS7_SD_(
  ) {
  err('missing function: _ZN9CHtmlFile7ConvertERKNSt3__26vectorINS0_12basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEENS5_IS7_EEEERKS7_SD_'); abort(-1);
  }
  Module["__ZN9CHtmlFile7ConvertERKNSt3__26vectorINS0_12basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEENS5_IS7_EEEERKS7_SD_"] = __ZN9CHtmlFile7ConvertERKNSt3__26vectorINS0_12basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEENS5_IS7_EEEERKS7_SD_;

  function __ZN9CHtmlFileC1Ev(
  ) {
  err('missing function: _ZN9CHtmlFileC1Ev'); abort(-1);
  }
  Module["__ZN9CHtmlFileC1Ev"] = __ZN9CHtmlFileC1Ev;

  function __ZN9CHtmlFileD1Ev(
  ) {
  err('missing function: _ZN9CHtmlFileD1Ev'); abort(-1);
  }
  Module["__ZN9CHtmlFileD1Ev"] = __ZN9CHtmlFileD1Ev;

  function __ZN9PdfReader10CPdfReader8GetErrorEv(
  ) {
  err('missing function: _ZN9PdfReader10CPdfReader8GetErrorEv'); abort(-1);
  }
  Module["__ZN9PdfReader10CPdfReader8GetErrorEv"] = __ZN9PdfReader10CPdfReader8GetErrorEv;

  function __ZN9PdfReader10CPdfReaderC1EPN7NSFonts17IApplicationFontsE(
  ) {
  err('missing function: _ZN9PdfReader10CPdfReaderC1EPN7NSFonts17IApplicationFontsE'); abort(-1);
  }
  Module["__ZN9PdfReader10CPdfReaderC1EPN7NSFonts17IApplicationFontsE"] = __ZN9PdfReader10CPdfReaderC1EPN7NSFonts17IApplicationFontsE;

  function ___assert_fail(condition, filename, line, func) {
      abort('Assertion failed: ' + UTF8ToString(condition) + ', at: ' + [filename ? UTF8ToString(filename) : 'unknown filename', line, func ? UTF8ToString(func) : 'unknown function']);
    }
  Module["___assert_fail"] = ___assert_fail;

  
  
  var PROCINFO={ppid:1,pid:42,sid:42,pgid:42};
  Module["PROCINFO"] = PROCINFO;
  
  
  var __pthread_ptr=0;
  Module["__pthread_ptr"] = __pthread_ptr;
  
  var __pthread_is_main_runtime_thread=0;
  Module["__pthread_is_main_runtime_thread"] = __pthread_is_main_runtime_thread;
  
  var __pthread_is_main_browser_thread=0;
  Module["__pthread_is_main_browser_thread"] = __pthread_is_main_browser_thread;function __register_pthread_ptr(pthreadPtr, isMainBrowserThread, isMainRuntimeThread) {
      pthreadPtr = pthreadPtr|0;
      isMainBrowserThread = isMainBrowserThread|0;
      isMainRuntimeThread = isMainRuntimeThread|0;
      __pthread_ptr = pthreadPtr;
      __pthread_is_main_browser_thread = isMainBrowserThread;
      __pthread_is_main_runtime_thread = isMainRuntimeThread;
    }
  Module["__register_pthread_ptr"] = __register_pthread_ptr;
  
  var ERRNO_CODES={EPERM:63,ENOENT:44,ESRCH:71,EINTR:27,EIO:29,ENXIO:60,E2BIG:1,ENOEXEC:45,EBADF:8,ECHILD:12,EAGAIN:6,EWOULDBLOCK:6,ENOMEM:48,EACCES:2,EFAULT:21,ENOTBLK:105,EBUSY:10,EEXIST:20,EXDEV:75,ENODEV:43,ENOTDIR:54,EISDIR:31,EINVAL:28,ENFILE:41,EMFILE:33,ENOTTY:59,ETXTBSY:74,EFBIG:22,ENOSPC:51,ESPIPE:70,EROFS:69,EMLINK:34,EPIPE:64,EDOM:18,ERANGE:68,ENOMSG:49,EIDRM:24,ECHRNG:106,EL2NSYNC:156,EL3HLT:107,EL3RST:108,ELNRNG:109,EUNATCH:110,ENOCSI:111,EL2HLT:112,EDEADLK:16,ENOLCK:46,EBADE:113,EBADR:114,EXFULL:115,ENOANO:104,EBADRQC:103,EBADSLT:102,EDEADLOCK:16,EBFONT:101,ENOSTR:100,ENODATA:116,ETIME:117,ENOSR:118,ENONET:119,ENOPKG:120,EREMOTE:121,ENOLINK:47,EADV:122,ESRMNT:123,ECOMM:124,EPROTO:65,EMULTIHOP:36,EDOTDOT:125,EBADMSG:9,ENOTUNIQ:126,EBADFD:127,EREMCHG:128,ELIBACC:129,ELIBBAD:130,ELIBSCN:131,ELIBMAX:132,ELIBEXEC:133,ENOSYS:52,ENOTEMPTY:55,ENAMETOOLONG:37,ELOOP:32,EOPNOTSUPP:138,EPFNOSUPPORT:139,ECONNRESET:15,ENOBUFS:42,EAFNOSUPPORT:5,EPROTOTYPE:67,ENOTSOCK:57,ENOPROTOOPT:50,ESHUTDOWN:140,ECONNREFUSED:14,EADDRINUSE:3,ECONNABORTED:13,ENETUNREACH:40,ENETDOWN:38,ETIMEDOUT:73,EHOSTDOWN:142,EHOSTUNREACH:23,EINPROGRESS:26,EALREADY:7,EDESTADDRREQ:17,EMSGSIZE:35,EPROTONOSUPPORT:66,ESOCKTNOSUPPORT:137,EADDRNOTAVAIL:4,ENETRESET:39,EISCONN:30,ENOTCONN:53,ETOOMANYREFS:141,EUSERS:136,EDQUOT:19,ESTALE:72,ENOTSUP:138,ENOMEDIUM:148,EILSEQ:25,EOVERFLOW:61,ECANCELED:11,ENOTRECOVERABLE:56,EOWNERDEAD:62,ESTRPIPE:135};
  Module["ERRNO_CODES"] = ERRNO_CODES;
  
  
  var __main_thread_futex_wait_address=10204352;
  Module["__main_thread_futex_wait_address"] = __main_thread_futex_wait_address;function _emscripten_futex_wake(addr, count) {
      if (addr <= 0 || addr > HEAP8.length || addr&3 != 0 || count < 0) return -28;
      if (count == 0) return 0;
      // Waking (at least) INT_MAX waiters is defined to mean wake all callers.
      // For Atomics.notify() API Infinity is to be passed in that case.
      if (count >= 2147483647) count = Infinity;
  //    dump('futex_wake addr:' + addr + ' by thread: ' + _pthread_self() + (ENVIRONMENT_IS_PTHREAD?'(pthread)':'') + '\n');
  
      // See if main thread is waiting on this address? If so, wake it up by resetting its wake location to zero.
      // Note that this is not a fair procedure, since we always wake main thread first before any workers, so
      // this scheme does not adhere to real queue-based waiting.
      var mainThreadWaitAddress = Atomics.load(HEAP32, __main_thread_futex_wait_address >> 2);
      var mainThreadWoken = 0;
      if (mainThreadWaitAddress == addr) {
        var loadedAddr = Atomics.compareExchange(HEAP32, __main_thread_futex_wait_address >> 2, mainThreadWaitAddress, 0);
        if (loadedAddr == mainThreadWaitAddress) {
          --count;
          mainThreadWoken = 1;
          if (count <= 0) return 1;
        }
      }
  
      // Wake any workers waiting on this address.
      var ret = Atomics.notify(HEAP32, addr >> 2, count);
      if (ret >= 0) return ret + mainThreadWoken;
      throw 'Atomics.notify returned an unexpected value ' + ret;
    }
  Module["_emscripten_futex_wake"] = _emscripten_futex_wake;
  
  function __kill_thread(pthread_ptr) {
      if (ENVIRONMENT_IS_PTHREAD) throw 'Internal Error! _kill_thread() can only ever be called from main application thread!';
      if (!pthread_ptr) throw 'Internal Error! Null pthread_ptr in _kill_thread!';
      HEAP32[(((pthread_ptr)+(24))>>2)]=0;
      var pthread = PThread.pthreads[pthread_ptr];
      pthread.worker.terminate();
      PThread.freeThreadData(pthread);
      // The worker was completely nuked (not just the pthread execution it was hosting), so remove it from running workers
      // but don't put it back to the pool.
      PThread.runningWorkers.splice(PThread.runningWorkers.indexOf(pthread.worker), 1); // Not a running Worker anymore.
      pthread.worker.pthread = undefined;
    }
  Module["__kill_thread"] = __kill_thread;
  
  function __cancel_thread(pthread_ptr) {
      if (ENVIRONMENT_IS_PTHREAD) throw 'Internal Error! _cancel_thread() can only ever be called from main application thread!';
      if (!pthread_ptr) throw 'Internal Error! Null pthread_ptr in _cancel_thread!';
      var pthread = PThread.pthreads[pthread_ptr];
      pthread.worker.postMessage({ 'cmd': 'cancel' });
    }
  Module["__cancel_thread"] = __cancel_thread;
  
  function __cleanup_thread(pthread_ptr) {
      if (ENVIRONMENT_IS_PTHREAD) throw 'Internal Error! _cleanup_thread() can only ever be called from main application thread!';
      if (!pthread_ptr) throw 'Internal Error! Null pthread_ptr in _cleanup_thread!';
      HEAP32[(((pthread_ptr)+(24))>>2)]=0;
      var pthread = PThread.pthreads[pthread_ptr];
      if (pthread) {
        var worker = pthread.worker;
        PThread.returnWorkerToPool(worker);
      }
    }
  Module["__cleanup_thread"] = __cleanup_thread;var PThread={MAIN_THREAD_ID:1,mainThreadInfo:{schedPolicy:0,schedPrio:0},preallocatedWorkers:[],unusedWorkers:[],runningWorkers:[],initRuntime:function() {
        // Pass the thread address inside the asm.js scope to store it for fast access that avoids the need for a FFI out.
        // Global constructors trying to access this value will read the wrong value, but that is UB anyway.
        __register_pthread_ptr(PThread.mainThreadBlock, /*isMainBrowserThread=*/!ENVIRONMENT_IS_WORKER, /*isMainRuntimeThread=*/1);
        _emscripten_register_main_browser_thread_id(PThread.mainThreadBlock);
      },initMainThreadBlock:function() {
        if (ENVIRONMENT_IS_PTHREAD) return undefined;
  
  
        PThread.mainThreadBlock = 10203568;
  
        for (var i = 0; i < 244/4; ++i) HEAPU32[PThread.mainThreadBlock/4+i] = 0;
  
        // The pthread struct has a field that points to itself - this is used as a magic ID to detect whether the pthread_t
        // structure is 'alive'.
        HEAP32[(((PThread.mainThreadBlock)+(24))>>2)]=PThread.mainThreadBlock;
  
        // pthread struct robust_list head should point to itself.
        var headPtr = PThread.mainThreadBlock + 168;
        HEAP32[((headPtr)>>2)]=headPtr;
  
        // Allocate memory for thread-local storage.
        var tlsMemory = 10203824;
        for (var i = 0; i < 128; ++i) HEAPU32[tlsMemory/4+i] = 0;
        Atomics.store(HEAPU32, (PThread.mainThreadBlock + 116 ) >> 2, tlsMemory); // Init thread-local-storage memory array.
        Atomics.store(HEAPU32, (PThread.mainThreadBlock + 52 ) >> 2, PThread.mainThreadBlock); // Main thread ID.
        Atomics.store(HEAPU32, (PThread.mainThreadBlock + 56 ) >> 2, PROCINFO.pid); // Process ID.
  
      },initWorker:function() {
      },pthreads:{},exitHandlers:null,setThreadStatus:function() {},runExitHandlers:function() {
        if (PThread.exitHandlers !== null) {
          while (PThread.exitHandlers.length > 0) {
            PThread.exitHandlers.pop()();
          }
          PThread.exitHandlers = null;
        }
  
        // Call into the musl function that runs destructors of all thread-specific data.
        if (ENVIRONMENT_IS_PTHREAD && threadInfoStruct) ___pthread_tsd_run_dtors();
      },threadExit:function(exitCode) {
        var tb = _pthread_self();
        if (tb) { // If we haven't yet exited?
          Atomics.store(HEAPU32, (tb + 4 ) >> 2, exitCode);
          // When we publish this, the main thread is free to deallocate the thread object and we are done.
          // Therefore set threadInfoStruct = 0; above to 'release' the object in this worker thread.
          Atomics.store(HEAPU32, (tb + 0 ) >> 2, 1);
  
          // Disable all cancellation so that executing the cleanup handlers won't trigger another JS
          // canceled exception to be thrown.
          Atomics.store(HEAPU32, (tb + 72 ) >> 2, 1/*PTHREAD_CANCEL_DISABLE*/);
          Atomics.store(HEAPU32, (tb + 76 ) >> 2, 0/*PTHREAD_CANCEL_DEFERRED*/);
          PThread.runExitHandlers();
  
          _emscripten_futex_wake(tb + 0, 2147483647);
          __register_pthread_ptr(0, 0, 0); // Unregister the thread block also inside the asm.js scope.
          threadInfoStruct = 0;
          if (ENVIRONMENT_IS_PTHREAD) {
            // Note: in theory we would like to return any offscreen canvases back to the main thread,
            // but if we ever fetched a rendering context for them that would not be valid, so we don't try.
            postMessage({ 'cmd': 'exit' });
          }
        }
      },threadCancel:function() {
        PThread.runExitHandlers();
        Atomics.store(HEAPU32, (threadInfoStruct + 4 ) >> 2, -1/*PTHREAD_CANCELED*/);
        Atomics.store(HEAPU32, (threadInfoStruct + 0 ) >> 2, 1); // Mark the thread as no longer running.
        _emscripten_futex_wake(threadInfoStruct + 0, 2147483647); // wake all threads
        threadInfoStruct = selfThreadId = 0; // Not hosting a pthread anymore in this worker, reset the info structures to null.
        __register_pthread_ptr(0, 0, 0); // Unregister the thread block also inside the asm.js scope.
        postMessage({ 'cmd': 'cancelDone' });
      },terminateAllThreads:function() {
        for (var t in PThread.pthreads) {
          var pthread = PThread.pthreads[t];
          if (pthread && pthread.worker) {
            PThread.returnWorkerToPool(pthread.worker);
          }
        }
        PThread.pthreads = {};
  
        for (var i = 0; i < PThread.preallocatedWorkers.length; ++i) {
          var worker = PThread.preallocatedWorkers[i];
          worker.terminate();
        }
        PThread.preallocatedWorkers = [];
  
        for (var i = 0; i < PThread.unusedWorkers.length; ++i) {
          var worker = PThread.unusedWorkers[i];
          worker.terminate();
        }
        PThread.unusedWorkers = [];
  
        for (var i = 0; i < PThread.runningWorkers.length; ++i) {
          var worker = PThread.runningWorkers[i];
          var pthread = worker.pthread;
          PThread.freeThreadData(pthread);
          worker.terminate();
        }
        PThread.runningWorkers = [];
      },freeThreadData:function(pthread) {
        if (!pthread) return;
        if (pthread.threadInfoStruct) {
          var tlsMemory = HEAP32[(((pthread.threadInfoStruct)+(116))>>2)];
          HEAP32[(((pthread.threadInfoStruct)+(116))>>2)]=0;
          _free(tlsMemory);
          _free(pthread.threadInfoStruct);
        }
        pthread.threadInfoStruct = 0;
        if (pthread.allocatedOwnStack && pthread.stackBase) _free(pthread.stackBase);
        pthread.stackBase = 0;
        if (pthread.worker) pthread.worker.pthread = null;
      },returnWorkerToPool:function(worker) {
        delete PThread.pthreads[worker.pthread.thread];
        //Note: worker is intentionally not terminated so the pool can dynamically grow.
        PThread.unusedWorkers.push(worker);
        PThread.runningWorkers.splice(PThread.runningWorkers.indexOf(worker), 1); // Not a running Worker anymore
        PThread.freeThreadData(worker.pthread);
        worker.pthread = undefined; // Detach the worker from the pthread object, and return it to the worker pool as an unused worker.
      },receiveObjectTransfer:function(data) {
      },allocateUnusedWorkers:function(numWorkers, onFinishedLoading) {
        if (typeof SharedArrayBuffer === 'undefined') return; // No multithreading support, no-op.
  
        var workers = [];
  
        var numWorkersToCreate = numWorkers;
        if (PThread.preallocatedWorkers.length > 0) {
          var workersUsed = Math.min(PThread.preallocatedWorkers.length, numWorkers);
          workers = workers.concat(PThread.preallocatedWorkers.splice(0, workersUsed));
          numWorkersToCreate -= workersUsed;
        }
        if (numWorkersToCreate > 0) {
          workers = workers.concat(PThread.createNewWorkers(numWorkersToCreate));
        }
  
        // Add the listeners.
        PThread.attachListenerToWorkers(workers, onFinishedLoading);
  
        // Load the wasm module into the worker.
        for (var i = 0; i < numWorkers; ++i) {
          var worker = workers[i];
  
  
          // Ask the new worker to load up the Emscripten-compiled page. This is a heavy operation.
          worker.postMessage({
            'cmd': 'load',
            // If the application main .js file was loaded from a Blob, then it is not possible
            // to access the URL of the current script that could be passed to a Web Worker so that
            // it could load up the same file. In that case, developer must either deliver the Blob
            // object in Module['mainScriptUrlOrBlob'], or a URL to it, so that pthread Workers can
            // independently load up the same main application file.
            'urlOrBlob': Module['mainScriptUrlOrBlob'] || _scriptDir,
            'wasmMemory': wasmMemory,
            'wasmModule': wasmModule,
            'DYNAMIC_BASE': DYNAMIC_BASE,
            'DYNAMICTOP_PTR': DYNAMICTOP_PTR
          });
          PThread.unusedWorkers.push(worker);
        }
      },attachListenerToWorkers:function(workers, onFinishedLoading) {
        var numWorkersLoaded = 0;
        var numWorkers = workers.length;
        for (var i = 0; i < numWorkers; ++i) {
          var worker = workers[i];
          (function(worker) {
            worker.onmessage = function(e) {
              var d = e['data'];
              var cmd = d['cmd'];
              // Sometimes we need to backproxy events to the calling thread (e.g. HTML5 DOM events handlers such as emscripten_set_mousemove_callback()), so keep track in a globally accessible variable about the thread that initiated the proxying.
              if (worker.pthread) PThread.currentProxiedOperationCallerThread = worker.pthread.threadInfoStruct;
  
              // If this message is intended to a recipient that is not the main thread, forward it to the target thread.
              if (d['targetThread'] && d['targetThread'] != _pthread_self()) {
                var thread = PThread.pthreads[d.targetThread];
                if (thread) {
                  thread.worker.postMessage(e.data, d['transferList']);
                } else {
                  console.error('Internal error! Worker sent a message "' + cmd + '" to target pthread ' + d['targetThread'] + ', but that thread no longer exists!');
                }
                PThread.currentProxiedOperationCallerThread = undefined;
                return;
              }
  
              if (cmd === 'processQueuedMainThreadWork') {
                // TODO: Must post message to main Emscripten thread in PROXY_TO_WORKER mode.
                _emscripten_main_thread_process_queued_calls();
              } else if (cmd === 'spawnThread') {
                __spawn_thread(e.data);
              } else if (cmd === 'cleanupThread') {
                __cleanup_thread(d['thread']);
              } else if (cmd === 'killThread') {
                __kill_thread(d['thread']);
              } else if (cmd === 'cancelThread') {
                __cancel_thread(d['thread']);
              } else if (cmd === 'loaded') {
                worker.loaded = true;
                // If this Worker is already pending to start running a thread, launch the thread now
                if (worker.runPthread) {
                  worker.runPthread();
                  delete worker.runPthread;
                }
                ++numWorkersLoaded;
                if (numWorkersLoaded === numWorkers && onFinishedLoading) {
                  onFinishedLoading();
                }
              } else if (cmd === 'print') {
                out('Thread ' + d['threadId'] + ': ' + d['text']);
              } else if (cmd === 'printErr') {
                err('Thread ' + d['threadId'] + ': ' + d['text']);
              } else if (cmd === 'alert') {
                alert('Thread ' + d['threadId'] + ': ' + d['text']);
              } else if (cmd === 'exit') {
                var detached = worker.pthread && Atomics.load(HEAPU32, (worker.pthread.thread + 80) >> 2);
                if (detached) {
                  PThread.returnWorkerToPool(worker);
                }
              } else if (cmd === 'exitProcess') {
                // A pthread has requested to exit the whole application process (runtime).
                noExitRuntime = false;
                try {
                  exit(d['returnCode']);
                } catch (e) {
                  if (e instanceof ExitStatus) return;
                  throw e;
                }
              } else if (cmd === 'cancelDone') {
                PThread.returnWorkerToPool(worker);
              } else if (cmd === 'objectTransfer') {
                PThread.receiveObjectTransfer(e.data);
              } else if (e.data.target === 'setimmediate') {
                worker.postMessage(e.data); // Worker wants to postMessage() to itself to implement setImmediate() emulation.
              } else {
                err("worker sent an unknown command " + cmd);
              }
              PThread.currentProxiedOperationCallerThread = undefined;
            };
  
            worker.onerror = function(e) {
              err('pthread sent an error! ' + e.filename + ':' + e.lineno + ': ' + e.message);
            };
  
            if (ENVIRONMENT_HAS_NODE) {
              worker.on('message', function(data) {
                worker.onmessage({ data: data });
              });
              worker.on('error', function(data) {
                worker.onerror(data);
              });
              worker.on('exit', function(data) {
                console.log('worker exited - TODO: update the worker queue?');
              });
            }
          }(worker));
        }  // for each worker
      },createNewWorkers:function(numWorkers) {
        // Creates new workers with the discovered pthread worker file.
        if (typeof SharedArrayBuffer === 'undefined') return []; // No multithreading support, no-op.
        var pthreadMainJs = "x2t.worker.js";
        // Allow HTML module to configure the location where the 'worker.js' file will be loaded from,
        // via Module.locateFile() function. If not specified, then the default URL 'worker.js' relative
        // to the main html file is loaded.
        pthreadMainJs = locateFile(pthreadMainJs);
        var newWorkers = [];
        for (var i = 0; i < numWorkers; ++i) {
          newWorkers.push(new Worker(pthreadMainJs));
        }
        return newWorkers;
      },getNewWorker:function() {
        if (PThread.unusedWorkers.length == 0) PThread.allocateUnusedWorkers(1);
        if (PThread.unusedWorkers.length > 0) return PThread.unusedWorkers.pop();
        else return null;
      },busySpinWait:function(msecs) {
        var t = performance.now() + msecs;
        while(performance.now() < t) {
          ;
        }
      }};
  Module["PThread"] = PThread;function ___call_main(argc, argv) {
      var returnCode = _main(argc, argv);
      if (!noExitRuntime) postMessage({ 'cmd': 'exitProcess', 'returnCode': returnCode });
      return returnCode;
    }
  Module["___call_main"] = ___call_main;

  
  
  function _emscripten_get_now() { abort() }
  Module["_emscripten_get_now"] = _emscripten_get_now;
  
  function _emscripten_get_now_is_monotonic() {
      // return whether emscripten_get_now is guaranteed monotonic; the Date.now
      // implementation is not :(
      return (0
        || ENVIRONMENT_IS_NODE
        || (typeof dateNow !== 'undefined')
        || (typeof performance === 'object' && performance && typeof performance['now'] === 'function')
        );
    }
  Module["_emscripten_get_now_is_monotonic"] = _emscripten_get_now_is_monotonic;
  
  function ___setErrNo(value) {
      if (Module['___errno_location']) HEAP32[((Module['___errno_location']())>>2)]=value;
      return value;
    }
  Module["___setErrNo"] = ___setErrNo;function _clock_gettime(clk_id, tp) {
      // int clock_gettime(clockid_t clk_id, struct timespec *tp);
      var now;
      if (clk_id === 0) {
        now = Date.now();
      } else if (clk_id === 1 && _emscripten_get_now_is_monotonic()) {
        now = _emscripten_get_now();
      } else {
        ___setErrNo(28);
        return -1;
      }
      HEAP32[((tp)>>2)]=(now/1000)|0; // seconds
      HEAP32[(((tp)+(4))>>2)]=((now % 1000)*1000*1000)|0; // nanoseconds
      return 0;
    }
  Module["_clock_gettime"] = _clock_gettime;function ___clock_gettime(a0,a1
  ) {
  return _clock_gettime(a0,a1);
  }
  Module["___clock_gettime"] = ___clock_gettime;

  function ___cxa_allocate_exception(size) {
      return _malloc(size);
    }
  Module["___cxa_allocate_exception"] = ___cxa_allocate_exception;

  
  function _atexit(func, arg) {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(1, 1, func, arg);
  
      __ATEXIT__.unshift({ func: func, arg: arg });
    }
  
  Module["_atexit"] = _atexit;function ___cxa_atexit(
  ) {
  return _atexit.apply(null, arguments)
  }
  Module["___cxa_atexit"] = ___cxa_atexit;

  
  var ___exception_caught= [];
  Module["___exception_caught"] = ___exception_caught;
  
  
  var ___exception_infos={};
  Module["___exception_infos"] = ___exception_infos;function ___exception_deAdjust(adjusted) {
      if (!adjusted || ___exception_infos[adjusted]) return adjusted;
      for (var key in ___exception_infos) {
        var ptr = +key; // the iteration key is a string, and if we throw this, it must be an integer as that is what we look for
        var adj = ___exception_infos[ptr].adjusted;
        var len = adj.length;
        for (var i = 0; i < len; i++) {
          if (adj[i] === adjusted) {
            return ptr;
          }
        }
      }
      return adjusted;
    }
  Module["___exception_deAdjust"] = ___exception_deAdjust;
  
  var ___exception_last=0;
  Module["___exception_last"] = ___exception_last;function ___cxa_rethrow() {
      var ptr = ___exception_caught.pop();
      ptr = ___exception_deAdjust(ptr);
      if (!___exception_infos[ptr].rethrown) {
        // Only pop if the corresponding push was through rethrow_primary_exception
        ___exception_caught.push(ptr);
        ___exception_infos[ptr].rethrown = true;
      }
      ___exception_last = ptr;
      throw ptr;
    }
  Module["___cxa_rethrow"] = ___cxa_rethrow;

  function ___cxa_throw(ptr, type, destructor) {
      ___exception_infos[ptr] = {
        ptr: ptr,
        adjusted: [ptr],
        type: type,
        destructor: destructor,
        refcount: 0,
        caught: false,
        rethrown: false
      };
      ___exception_last = ptr;
      if (!("uncaught_exception" in __ZSt18uncaught_exceptionv)) {
        __ZSt18uncaught_exceptionv.uncaught_exceptions = 1;
      } else {
        __ZSt18uncaught_exceptionv.uncaught_exceptions++;
      }
      throw ptr;
    }
  Module["___cxa_throw"] = ___cxa_throw;

  function ___lock() {}
  Module["___lock"] = ___lock;

  function ___map_file(pathname, size) {
      ___setErrNo(63);
      return -1;
    }
  Module["___map_file"] = ___map_file;

  
  
  var PATH={splitPath:function(filename) {
        var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
        return splitPathRe.exec(filename).slice(1);
      },normalizeArray:function(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:function(path) {
        var isAbsolute = path.charAt(0) === '/',
            trailingSlash = path.substr(-1) === '/';
        // Normalize the path
        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) {
          // No dirname whatsoever
          return '.';
        }
        if (dir) {
          // It has a dirname, strip trailing slash
          dir = dir.substr(0, dir.length - 1);
        }
        return root + dir;
      },basename:function(path) {
        // EMSCRIPTEN return '/'' for '/', not an empty string
        if (path === '/') return '/';
        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);
      }};
  Module["PATH"] = PATH;
  
  
  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();
          // 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.charAt(0) === '/';
        }
        // 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(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('/');
      }};
  Module["PATH_FS"] = PATH_FS;
  
  var TTY={ttys:[],init:function () {
        // 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:function() {
        // 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: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) {
          // flush any pending line data
          stream.tty.ops.flush(stream.tty);
        },flush:function(stream) {
          stream.tty.ops.flush(stream.tty);
        },read:function(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.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 (ENVIRONMENT_IS_NODE) {
              // we will read data by chunks of BUFSIZE
              var BUFSIZE = 256;
              var buf = Buffer.alloc ? Buffer.alloc(BUFSIZE) : new Buffer(BUFSIZE);
              var bytesRead = 0;
  
              try {
                bytesRead = nodeFS.readSync(process.stdin.fd, buf, 0, BUFSIZE, null);
              } catch(e) {
                // Cross-platform differences: on Windows, reading EOF throws an exception, but on other OSes,
                // reading EOF returns 0. Uniformize behavior by treating the EOF exception to return 0.
                if (e.toString().indexOf('EOF') != -1) bytesRead = 0;
                else throw e;
              }
  
              if (bytesRead > 0) {
                result = buf.slice(0, bytesRead).toString('utf-8');
              } else {
                result = null;
              }
            } else
            if (typeof window != 'undefined' &&
              typeof window.prompt == 'function') {
              // Browser.
              result = window.prompt('Input: ');  // returns null on cancel
              if (result !== null) {
                result += '\n';
              }
            } else if (typeof readline == 'function') {
              // Command line.
              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); // val == 0 would cut text output off in the middle.
          }
        },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 = [];
          }
        }}};
  Module["TTY"] = TTY;
  
  var MEMFS={ops_table:null,mount:function(mount) {
        return MEMFS.createNode(null, '/', 16384 | 511 /* 0777 */, 0);
      },createNode:function(parent, name, mode, dev) {
        if (FS.isBlkdev(mode) || FS.isFIFO(mode)) {
          // no supported
          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; // 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.timestamp = Date.now();
        // add the new node to the parent
        if (parent) {
          parent.contents[name] = node;
        }
        return node;
      },getFileDataAsRegularArray:function(node) {
        if (node.contents && node.contents.subarray) {
          var arr = [];
          for (var i = 0; i < node.usedBytes; ++i) arr.push(node.contents[i]);
          return arr; // Returns a copy of the original data.
        }
        return node.contents; // No-op, the file contents are already in a JS array. Return as-is.
      },getFileDataAsTypedArray:function(node) {
        if (!node.contents) return new Uint8Array;
        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:function(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 ? 2.0 : 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.
        return;
      },resizeFileStorage:function(node, newSize) {
        if (node.usedBytes == newSize) return;
        if (newSize == 0) {
          node.contents = null; // Fully decommit when requesting a resize to zero.
          node.usedBytes = 0;
          return;
        }
        if (!node.contents || node.contents.subarray) { // Resize a typed array if that is being used as the backing store.
          var oldContents = node.contents;
          node.contents = new Uint8Array(new ArrayBuffer(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;
          return;
        }
        // Backing with a JS array.
        if (!node.contents) node.contents = [];
        if (node.contents.length > newSize) node.contents.length = newSize;
        else while (node.contents.length < newSize) node.contents.push(0);
        node.usedBytes = newSize;
      },node_ops:{getattr:function(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.timestamp);
          attr.mtime = new Date(node.timestamp);
          attr.ctime = new Date(node.timestamp);
          // 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: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 we're overwriting a directory at new_name, make sure it's empty.
          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);
              }
            }
          }
          // do the internal rewiring
          delete old_node.parent.contents[old_node.name];
          old_node.name = new_name;
          new_dir.contents[new_name] = old_node;
          old_node.parent = new_dir;
        },unlink:function(parent, name) {
          delete parent.contents[name];
        },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];
        },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 /* 0777 */ | 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) { // 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:function(stream, buffer, offset, length, position, canOwn) {
  
          if (!length) return 0;
          var node = stream.node;
          node.timestamp = 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 = new Uint8Array(buffer.subarray(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) node.contents.set(buffer.subarray(offset, offset + length), position); // Use typed array write if available.
          else {
            for (var i = 0; i < length; i++) {
             node.contents[position + i] = buffer[offset + i]; // Or fall back to manual write if not.
            }
          }
          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, buffer, offset, 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.buffer === buffer.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 {
            // Try to avoid unnecessary slices.
            if (position > 0 || position + length < stream.node.usedBytes) {
              if (contents.subarray) {
                contents = contents.subarray(position, position + length);
              } else {
                contents = Array.prototype.slice.call(contents, position, position + length);
              }
            }
            allocated = true;
            // malloc() can lead to growing the heap. If targeting the heap, we need to
            // re-acquire the heap buffer object in case growth had occurred.
            var fromHeap = (buffer.buffer == HEAP8.buffer);
            ptr = _malloc(length);
            if (!ptr) {
              throw new FS.ErrnoError(48);
            }
            (fromHeap ? HEAP8 : buffer).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) {
            // MAP_PRIVATE calls need not to be synced back to underlying fs
            return 0;
          }
  
          var bytesWritten = MEMFS.stream_ops.write(stream, buffer, 0, length, offset, false);
          // should we check if bytesWritten and length are the same?
          return 0;
        }}};
  Module["MEMFS"] = MEMFS;
  
  var NODEFS={isWindows:false,staticInit:function() {
        NODEFS.isWindows = !!process.platform.match(/^win/);
        var flags = process["binding"]("constants");
        // Node.js 4 compatibility: it has no namespaces for constants
        if (flags["fs"]) {
          flags = flags["fs"];
        }
        NODEFS.flagsForNodeMap = {
          "1024": flags["O_APPEND"],
          "64": flags["O_CREAT"],
          "128": flags["O_EXCL"],
          "0": flags["O_RDONLY"],
          "2": flags["O_RDWR"],
          "4096": flags["O_SYNC"],
          "512": flags["O_TRUNC"],
          "1": flags["O_WRONLY"]
        };
      },bufferFrom:function (arrayBuffer) {
        // Node.js < 4.5 compatibility: Buffer.from does not support ArrayBuffer
        // Buffer.from before 4.5 was just a method inherited from Uint8Array
        // Buffer.alloc has been added with Buffer.from together, so check it instead
        return Buffer["alloc"] ? Buffer.from(arrayBuffer) : new Buffer(arrayBuffer);
      },convertNodeCode:function(e) {
        var code = e.code;
        assert(code in ERRNO_CODES);
        return ERRNO_CODES[code];
      },mount:function (mount) {
        assert(ENVIRONMENT_HAS_NODE);
        return NODEFS.createNode(null, '/', NODEFS.getMode(mount.opts.root), 0);
      },createNode:function (parent, name, mode, dev) {
        if (!FS.isDir(mode) && !FS.isFile(mode) && !FS.isLink(mode)) {
          throw new FS.ErrnoError(28);
        }
        var node = FS.createNode(parent, name, mode);
        node.node_ops = NODEFS.node_ops;
        node.stream_ops = NODEFS.stream_ops;
        return node;
      },getMode:function (path) {
        var stat;
        try {
          stat = fs.lstatSync(path);
          if (NODEFS.isWindows) {
            // Node.js on Windows never represents permission bit 'x', so
            // propagate read bits to execute bits
            stat.mode = stat.mode | ((stat.mode & 292) >> 2);
          }
        } catch (e) {
          if (!e.code) throw e;
          throw new FS.ErrnoError(NODEFS.convertNodeCode(e));
        }
        return stat.mode;
      },realPath:function (node) {
        var parts = [];
        while (node.parent !== node) {
          parts.push(node.name);
          node = node.parent;
        }
        parts.push(node.mount.opts.root);
        parts.reverse();
        return PATH.join.apply(null, parts);
      },flagsForNode:function(flags) {
        flags &= ~0x200000 /*O_PATH*/; // Ignore this flag from musl, otherwise node.js fails to open the file.
        flags &= ~0x800 /*O_NONBLOCK*/; // Ignore this flag from musl, otherwise node.js fails to open the file.
        flags &= ~0x8000 /*O_LARGEFILE*/; // Ignore this flag from musl, otherwise node.js fails to open the file.
        flags &= ~0x80000 /*O_CLOEXEC*/; // Some applications may pass it; it makes no sense for a single process.
        var newFlags = 0;
        for (var k in NODEFS.flagsForNodeMap) {
          if (flags & k) {
            newFlags |= NODEFS.flagsForNodeMap[k];
            flags ^= k;
          }
        }
  
        if (!flags) {
          return newFlags;
        } else {
          throw new FS.ErrnoError(28);
        }
      },node_ops:{getattr:function(node) {
          var path = NODEFS.realPath(node);
          var stat;
          try {
            stat = fs.lstatSync(path);
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(NODEFS.convertNodeCode(e));
          }
          // node.js v0.10.20 doesn't report blksize and blocks on Windows. Fake them with default blksize of 4096.
          // See http://support.microsoft.com/kb/140365
          if (NODEFS.isWindows && !stat.blksize) {
            stat.blksize = 4096;
          }
          if (NODEFS.isWindows && !stat.blocks) {
            stat.blocks = (stat.size+stat.blksize-1)/stat.blksize|0;
          }
          return {
            dev: stat.dev,
            ino: stat.ino,
            mode: stat.mode,
            nlink: stat.nlink,
            uid: stat.uid,
            gid: stat.gid,
            rdev: stat.rdev,
            size: stat.size,
            atime: stat.atime,
            mtime: stat.mtime,
            ctime: stat.ctime,
            blksize: stat.blksize,
            blocks: stat.blocks
          };
        },setattr:function(node, attr) {
          var path = NODEFS.realPath(node);
          try {
            if (attr.mode !== undefined) {
              fs.chmodSync(path, attr.mode);
              // update the common node structure mode as well
              node.mode = attr.mode;
            }
            if (attr.timestamp !== undefined) {
              var date = new Date(attr.timestamp);
              fs.utimesSync(path, date, date);
            }
            if (attr.size !== undefined) {
              fs.truncateSync(path, attr.size);
            }
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(NODEFS.convertNodeCode(e));
          }
        },lookup:function (parent, name) {
          var path = PATH.join2(NODEFS.realPath(parent), name);
          var mode = NODEFS.getMode(path);
          return NODEFS.createNode(parent, name, mode);
        },mknod:function (parent, name, mode, dev) {
          var node = NODEFS.createNode(parent, name, mode, dev);
          // create the backing node for this in the fs root as well
          var path = NODEFS.realPath(node);
          try {
            if (FS.isDir(node.mode)) {
              fs.mkdirSync(path, node.mode);
            } else {
              fs.writeFileSync(path, '', { mode: node.mode });
            }
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(NODEFS.convertNodeCode(e));
          }
          return node;
        },rename:function (oldNode, newDir, newName) {
          var oldPath = NODEFS.realPath(oldNode);
          var newPath = PATH.join2(NODEFS.realPath(newDir), newName);
          try {
            fs.renameSync(oldPath, newPath);
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(NODEFS.convertNodeCode(e));
          }
        },unlink:function(parent, name) {
          var path = PATH.join2(NODEFS.realPath(parent), name);
          try {
            fs.unlinkSync(path);
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(NODEFS.convertNodeCode(e));
          }
        },rmdir:function(parent, name) {
          var path = PATH.join2(NODEFS.realPath(parent), name);
          try {
            fs.rmdirSync(path);
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(NODEFS.convertNodeCode(e));
          }
        },readdir:function(node) {
          var path = NODEFS.realPath(node);
          try {
            return fs.readdirSync(path);
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(NODEFS.convertNodeCode(e));
          }
        },symlink:function(parent, newName, oldPath) {
          var newPath = PATH.join2(NODEFS.realPath(parent), newName);
          try {
            fs.symlinkSync(oldPath, newPath);
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(NODEFS.convertNodeCode(e));
          }
        },readlink:function(node) {
          var path = NODEFS.realPath(node);
          try {
            path = fs.readlinkSync(path);
            path = NODEJS_PATH.relative(NODEJS_PATH.resolve(node.mount.opts.root), path);
            return path;
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(NODEFS.convertNodeCode(e));
          }
        }},stream_ops:{open:function (stream) {
          var path = NODEFS.realPath(stream.node);
          try {
            if (FS.isFile(stream.node.mode)) {
              stream.nfd = fs.openSync(path, NODEFS.flagsForNode(stream.flags));
            }
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(NODEFS.convertNodeCode(e));
          }
        },close:function (stream) {
          try {
            if (FS.isFile(stream.node.mode) && stream.nfd) {
              fs.closeSync(stream.nfd);
            }
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(NODEFS.convertNodeCode(e));
          }
        },read:function (stream, buffer, offset, length, position) {
          // Node.js < 6 compatibility: node errors on 0 length reads
          if (length === 0) return 0;
          try {
            return fs.readSync(stream.nfd, NODEFS.bufferFrom(buffer.buffer), offset, length, position);
          } catch (e) {
            throw new FS.ErrnoError(NODEFS.convertNodeCode(e));
          }
        },write:function (stream, buffer, offset, length, position) {
          try {
            return fs.writeSync(stream.nfd, NODEFS.bufferFrom(buffer.buffer), offset, length, position);
          } catch (e) {
            throw new FS.ErrnoError(NODEFS.convertNodeCode(e));
          }
        },llseek:function (stream, offset, whence) {
          var position = offset;
          if (whence === 1) {
            position += stream.position;
          } else if (whence === 2) {
            if (FS.isFile(stream.node.mode)) {
              try {
                var stat = fs.fstatSync(stream.nfd);
                position += stat.size;
              } catch (e) {
                throw new FS.ErrnoError(NODEFS.convertNodeCode(e));
              }
            }
          }
  
          if (position < 0) {
            throw new FS.ErrnoError(28);
          }
  
          return position;
        }}};
  Module["NODEFS"] = NODEFS;var FS={root:null,mounts:[],devices:{},streams:[],nextInode:1,nameTable:null,currentPath:"/",initialized:false,ignorePermissions:true,trackingDelegate:{},tracking:{openFlags:{READ:1,WRITE:2}},ErrnoError:null,genericErrors:{},filesystems:null,syncFSRequests:0,handleFSError:function(e) {
        if (!(e instanceof FS.ErrnoError)) throw e + ' : ' + stackTrace();
        return ___setErrNo(e.errno);
      },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) {  // max recursive lookup of 8
          throw new FS.ErrnoError(32);
        }
  
        // split the path
        var parts = PATH.normalizeArray(path.split('/').filter(function(p) {
          return !!p;
        }), false);
  
        // 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;
          }
  
          current = FS.lookupNode(current, parts[i]);
          current_path = PATH.join2(current_path, parts[i]);
  
          // jump to the mount's root node if this is a mountpoint
          if (FS.isMountpoint(current)) {
            if (!islast || (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 (!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) {  // limit max consecutive symlinks to 40 (SYMLOOP_MAX).
                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 err = FS.mayLookup(parent);
        if (err) {
          throw new FS.ErrnoError(err, 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;
          }
        }
        // if we failed to find it in the cache, call into the VFS
        return FS.lookup(parent, name);
      },createNode:function(parent, name, mode, rdev) {
        if (!FS.FSNode) {
          FS.FSNode = function(parent, name, mode, rdev) {
            if (!parent) {
              parent = this;  // root node sets parent to itself
            }
            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;
          };
  
          FS.FSNode.prototype = {};
  
          // compatibility
          var readMode = 292 | 73;
          var writeMode = 146;
  
          // NOTE we must use Object.defineProperties instead of individual calls to
          // Object.defineProperty in order to make closure compiler happy
          Object.defineProperties(FS.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); }
            }
          });
        }
  
        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,"rs":1052672,"r+":2,"w":577,"wx":705,"xw":705,"w+":578,"wx+":706,"xw+":706,"a":1089,"ax":1217,"xa":1217,"a+":1090,"ax+":1218,"xa+":1218},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;
        }
        // return 0 if any user, group or owner bits are set.
        if (perms.indexOf('r') !== -1 && !(node.mode & 292)) {
          return 2;
        } else if (perms.indexOf('w') !== -1 && !(node.mode & 146)) {
          return 2;
        } else if (perms.indexOf('x') !== -1 && !(node.mode & 73)) {
          return 2;
        }
        return 0;
      },mayLookup:function(dir) {
        var err = FS.nodePermissions(dir, 'x');
        if (err) return err;
        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 err = FS.nodePermissions(dir, 'wx');
        if (err) {
          return err;
        }
        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' || // 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: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 = {};
          // compatibility
          Object.defineProperties(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); }
            }
          });
        }
        // clone it, so we can return an instance of FSStream
        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);
          // override node's stream ops with the device's
          stream.stream_ops = device.stream_ops;
          // forward the open call
          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) & 0xff);
      },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) {
          console.log('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(err) {
          FS.syncFSRequests--;
          return callback(err);
        }
  
        function done(err) {
          if (err) {
            if (!done.errored) {
              done.errored = true;
              return doCallback(err);
            }
            return;
          }
          if (++completed >= mounts.length) {
            doCallback(null);
          }
        };
  
        // sync all mounts
        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;  // 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: type,
          opts: opts,
          mountpoint: 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:function (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(function (hash) {
          var current = FS.nameTable[hash];
  
          while (current) {
            var next = current.name_next;
  
            if (mounts.indexOf(current.mount) !== -1) {
              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: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 err = FS.mayCreate(parent, name);
        if (err) {
          throw new FS.ErrnoError(err);
        }
        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 /* 0666 */;
        mode &= 4095;
        mode |= 32768;
        return FS.mknod(path, mode, 0);
      },mkdir:function(path, mode) {
        mode = mode !== undefined ? mode : 511 /* 0777 */;
        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 /* 0666 */;
        }
        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 err = FS.mayCreate(parent, newname);
        if (err) {
          throw new FS.ErrnoError(err);
        }
        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);
        // parents must exist
        var lookup, old_dir, new_dir;
        try {
          lookup = FS.lookupPath(old_path, { parent: true });
          old_dir = lookup.node;
          lookup = FS.lookupPath(new_path, { parent: true });
          new_dir = lookup.node;
        } catch (e) {
          throw new FS.ErrnoError(10);
        }
        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) {
          // not fatal
        }
        // 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 err = FS.mayDelete(old_dir, old_name, isdir);
        if (err) {
          throw new FS.ErrnoError(err);
        }
        // need delete permissions if we'll be overwriting.
        // need create permissions if new doesn't already exist.
        err = new_node ?
          FS.mayDelete(new_dir, new_name, isdir) :
          FS.mayCreate(new_dir, new_name);
        if (err) {
          throw new FS.ErrnoError(err);
        }
        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) {
          err = FS.nodePermissions(old_dir, 'w');
          if (err) {
            throw new FS.ErrnoError(err);
          }
        }
        try {
          if (FS.trackingDelegate['willMovePath']) {
            FS.trackingDelegate['willMovePath'](old_path, new_path);
          }
        } catch(e) {
          console.log("FS.trackingDelegate['willMovePath']('"+old_path+"', '"+new_path+"') threw an exception: " + e.message);
        }
        // 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);
        } catch (e) {
          throw e;
        } finally {
          // add the node back to the hash (in case node_ops.rename
          // changed its name)
          FS.hashAddNode(old_node);
        }
        try {
          if (FS.trackingDelegate['onMovePath']) FS.trackingDelegate['onMovePath'](old_path, new_path);
        } catch(e) {
          console.log("FS.trackingDelegate['onMovePath']('"+old_path+"', '"+new_path+"') threw an exception: " + e.message);
        }
      },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 err = FS.mayDelete(parent, name, true);
        if (err) {
          throw new FS.ErrnoError(err);
        }
        if (!parent.node_ops.rmdir) {
          throw new FS.ErrnoError(63);
        }
        if (FS.isMountpoint(node)) {
          throw new FS.ErrnoError(10);
        }
        try {
          if (FS.trackingDelegate['willDeletePath']) {
            FS.trackingDelegate['willDeletePath'](path);
          }
        } catch(e) {
          console.log("FS.trackingDelegate['willDeletePath']('"+path+"') threw an exception: " + e.message);
        }
        parent.node_ops.rmdir(parent, name);
        FS.destroyNode(node);
        try {
          if (FS.trackingDelegate['onDeletePath']) FS.trackingDelegate['onDeletePath'](path);
        } catch(e) {
          console.log("FS.trackingDelegate['onDeletePath']('"+path+"') threw an exception: " + e.message);
        }
      },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 err = FS.mayDelete(parent, name, false);
        if (err) {
          // 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(err);
        }
        if (!parent.node_ops.unlink) {
          throw new FS.ErrnoError(63);
        }
        if (FS.isMountpoint(node)) {
          throw new FS.ErrnoError(10);
        }
        try {
          if (FS.trackingDelegate['willDeletePath']) {
            FS.trackingDelegate['willDeletePath'](path);
          }
        } catch(e) {
          console.log("FS.trackingDelegate['willDeletePath']('"+path+"') threw an exception: " + e.message);
        }
        parent.node_ops.unlink(parent, name);
        FS.destroyNode(node);
        try {
          if (FS.trackingDelegate['onDeletePath']) FS.trackingDelegate['onDeletePath'](path);
        } catch(e) {
          console.log("FS.trackingDelegate['onDeletePath']('"+path+"') threw an exception: " + e.message);
        }
      },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()
          // we ignore the uid / gid for 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 err = FS.nodePermissions(node, 'w');
        if (err) {
          throw new FS.ErrnoError(err);
        }
        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 /* 0666 */ : 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) {
            // ignore
          }
        }
        // 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 err = FS.mayOpen(node, flags);
          if (err) {
            throw new FS.ErrnoError(err);
          }
        }
        // do truncation if necessary
        if ((flags & 512)) {
          FS.truncate(node, 0);
        }
        // we've already handled these, don't pass down to the underlying vfs
        flags &= ~(128 | 512);
  
        // register the stream with the filesystem
        var stream = FS.createStream({
          node: node,
          path: FS.getPath(node),  // we want the absolute path to the node
          flags: flags,
          seekable: true,
          position: 0,
          stream_ops: node.stream_ops,
          // used by the file family libc calls (fopen, fwrite, ferror, etc.)
          ungotten: [],
          error: false
        }, fd_start, fd_end);
        // call the new stream's open function
        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;
            console.log("FS.trackingDelegate error on read file: " + path);
          }
        }
        try {
          if (FS.trackingDelegate['onOpenFile']) {
            var trackingFlags = 0;
            if ((flags & 2097155) !== 1) {
              trackingFlags |= FS.tracking.openFlags.READ;
            }
            if ((flags & 2097155) !== 0) {
              trackingFlags |= FS.tracking.openFlags.WRITE;
            }
            FS.trackingDelegate['onOpenFile'](path, trackingFlags);
          }
        } catch(e) {
          console.log("FS.trackingDelegate['onOpenFile']('"+path+"', flags) threw an exception: " + e.message);
        }
        return stream;
      },close:function(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: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.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;
        try {
          if (stream.path && FS.trackingDelegate['onWriteToFile']) FS.trackingDelegate['onWriteToFile'](stream.path);
        } catch(e) {
          console.log("FS.trackingDelegate['onWriteToFile']('"+stream.path+"') threw an exception: " + e.message);
        }
        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, buffer, offset, 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);
        }
        return stream.stream_ops.mmap(stream, buffer, offset, 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 || 'r';
        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 || 'w';
        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 err = FS.nodePermissions(lookup.node, 'x');
        if (err) {
          throw new FS.ErrnoError(err);
        }
        FS.currentPath = lookup.path;
      },createDefaultDirectories:function() {
        FS.mkdir('/tmp');
        FS.mkdir('/home');
        FS.mkdir('/home/web_user');
      },createDefaultDevices:function() {
        // create /dev
        FS.mkdir('/dev');
        // setup /dev/null
        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));
        // setup /dev/tty and /dev/tty1
        // stderr needs to print output using Module['printErr']
        // 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
        var random_device;
        if (typeof crypto === 'object' && typeof crypto['getRandomValues'] === 'function') {
          // for modern web browsers
          var randomBuffer = new Uint8Array(1);
          random_device = function() { crypto.getRandomValues(randomBuffer); return randomBuffer[0]; };
        } else
        if (ENVIRONMENT_IS_NODE) {
          // for nodejs with or without crypto support included
          try {
            var crypto_module = require('crypto');
            // nodejs has crypto support
            random_device = function() { return crypto_module['randomBytes'](1)[0]; };
          } catch (e) {
            // nodejs doesn't have crypto support
          }
        } else
        {}
        if (!random_device) {
          // we couldn't find a proper implementation, as Math.random() is not suitable for /dev/random, see emscripten-core/emscripten/pull/7096
          random_device = function() { abort("random_device"); };
        }
        FS.createDevice('/dev', 'random', random_device);
        FS.createDevice('/dev', 'urandom', random_device);
        // 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:function() {
        // 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');
        FS.mkdir('/proc/self');
        FS.mkdir('/proc/self/fd');
        FS.mount({
          mount: function() {
            var node = FS.createNode('/proc/self', 'fd', 16384 | 511 /* 0777 */, 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; // make it look like a simple root node
                return ret;
              }
            };
            return node;
          }
        }, {}, '/proc/self/fd');
      },createStandardStreams:function() {
        // 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 (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');
        }
  
        // open default streams for the stdin, stdout and stderr devices
        var stdin = FS.open('/dev/stdin', 'r');
        var stdout = FS.open('/dev/stdout', 'w');
        var stderr = FS.open('/dev/stderr', 'w');
      },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;
        // Some errors may happen quite a bit, to avoid overhead we reuse them (and suffer a lack of stack info)
        [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,
          'NODEFS': NODEFS,
        };
      },init:function(input, output, error) {
        FS.init.initialized = true;
  
        FS.ensureErrnoError();
  
        // Allow Module.stdin etc. to provide defaults, if none explicitly passed to us here
        Module['stdin'] = input || Module['stdin'];
        Module['stdout'] = output || Module['stdout'];
        Module['stderr'] = error || Module['stderr'];
  
        FS.createStandardStreams();
      },quit:function() {
        FS.init.initialized = false;
        // force-flush all streams, so we get musl std streams printed out
        var fflush = Module['_fflush'];
        if (fflush) fflush(0);
        // 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);
        }
      },getMode:function(canRead, canWrite) {
        var mode = 0;
        if (canRead) mode |= 292 | 73;
        if (canWrite) mode |= 146;
        return mode;
      },joinPath:function(parts, forceRelative) {
        var path = PATH.join.apply(null, parts);
        if (forceRelative && path[0] == '/') path = path.substr(1);
        return path;
      },absolutePath:function(relative, base) {
        return PATH_FS.resolve(base, relative);
      },standardizePath:function(path) {
        return PATH.normalize(path);
      },findObject:function(path, dontResolveLastLink) {
        var ret = FS.analyzePath(path, dontResolveLastLink);
        if (ret.exists) {
          return ret.object;
        } else {
          ___setErrNo(ret.error);
          return null;
        }
      },analyzePath:function(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;
      },createFolder:function(parent, name, canRead, canWrite) {
        var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name);
        var mode = FS.getMode(canRead, canWrite);
        return FS.mkdir(path, mode);
      },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) {
            // ignore EEXIST
          }
          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;
          }
          // make sure we can write to the file
          FS.chmod(node, mode | 146);
          var stream = FS.open(node, 'w');
          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);
        // Create a fake device that a set of stream ops to emulate
        // the old behavior.
        FS.registerDevice(dev, {
          open: function(stream) {
            stream.seekable = false;
          },
          close: function(stream) {
            // flush any pending line data
            if (output && output.buffer && output.buffer.length) {
              output(10);
            }
          },
          read: function(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.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);
      },createLink:function(parent, name, target, canRead, canWrite) {
        var path = PATH.join2(typeof parent === 'string' ? parent : FS.getPath(parent), name);
        return FS.symlink(target, path);
      },forceLoadFile:function(obj) {
        if (obj.isDevice || obj.isFolder || obj.link || obj.contents) return true;
        var success = 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_) {
          // Command-line.
          try {
            // WARNING: Can't read binary files in V8's d8 or tracemonkey's js, as
            //          read() will try to parse UTF8.
            obj.contents = intArrayFromString(read_(obj.url), true);
            obj.usedBytes = obj.contents.length;
          } catch (e) {
            success = false;
          }
        } else {
          throw new Error('Cannot load without read() or XMLHttpRequest.');
        }
        if (!success) ___setErrNo(29);
        return success;
      },createLazyFile:function(parent, name, url, canRead, canWrite) {
        // Lazy chunked Uint8Array (implements get and length from Uint8Array). Actual getting is abstracted away for eventual reuse.
        function LazyUint8Array() {
          this.lengthKnown = false;
          this.chunks = []; // Loaded chunks. Index is the chunk number
        }
        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() {
          // 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 = (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!");
  
            // 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.
            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; // 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;
            console.log("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);
        // 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(function(key) {
          var fn = node.stream_ops[key];
          stream_ops[key] = function forceLoadLazyFile() {
            if (!FS.forceLoadFile(node)) {
              throw new FS.ErrnoError(29);
            }
            return fn.apply(null, arguments);
          };
        });
        // use a custom read function
        stream_ops.read = function stream_ops_read(stream, buffer, offset, length, position) {
          if (!FS.forceLoadFile(node)) {
            throw new FS.ErrnoError(29);
          }
          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;
        };
        node.stream_ops = stream_ops;
        return node;
      },createPreloadedFile:function(parent, name, url, canRead, canWrite, onload, onerror, dontCreateFile, canOwn, preFinish) {
        Browser.init(); // XXX perhaps this method should move onto Browser?
        // 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) {
            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') {
          Browser.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() {
          console.log('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; // no database to load from
        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;
      }};
  Module["FS"] = FS;var SYSCALLS={DEFAULT_POLLMASK:5,mappings:{},umask:511,calculateAt:function(dirfd, path) {
        if (path[0] !== '/') {
          // relative 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;
          }
          path = PATH.join2(dir, path);
        }
        return 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))) {
            // an error occurred while trying to look up the path; we should just report ENOTDIR
            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))) >= 1.0 ? (tempDouble > 0.0 ? ((Math_min((+(Math_floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math_ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>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() / 1000)|0;
        HEAP32[(((buf)+(60))>>2)]=0;
        HEAP32[(((buf)+(64))>>2)]=(stat.mtime.getTime() / 1000)|0;
        HEAP32[(((buf)+(68))>>2)]=0;
        HEAP32[(((buf)+(72))>>2)]=(stat.ctime.getTime() / 1000)|0;
        HEAP32[(((buf)+(76))>>2)]=0;
        (tempI64 = [stat.ino>>>0,(tempDouble=stat.ino,(+(Math_abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math_min((+(Math_floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math_ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[(((buf)+(80))>>2)]=tempI64[0],HEAP32[(((buf)+(84))>>2)]=tempI64[1]);
        return 0;
      },doMsync:function(addr, stream, len, flags) {
        var buffer = new Uint8Array(HEAPU8.subarray(addr, addr + len));
        FS.msync(stream, buffer, 0, len, flags);
      },doMkdir:function(path, mode) {
        // remove a trailing slash, if one - /a/b/ has basename of '', but
        // we want to create b in the context of this function
        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) {
        // we don't want this in the JS API as it uses mknod to create all nodes.
        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);
        // readlink is one of the rare functions that write out a C string, but does never append a null to the output buffer(!)
        // stringToUTF8() always appends a null byte, so restore the character under the null byte after the write.
        HEAP8[buf+len] = endChar;
  
        return len;
      },doAccess:function(path, amode) {
        if (amode & ~7) {
          // need a valid mode
          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 /* otherwise, they've just passed F_OK */ && 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; // nothing more to read
        }
        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:0,get:function(varargs) {
        SYSCALLS.varargs += 4;
        var ret = HEAP32[(((SYSCALLS.varargs)-(4))>>2)];
        return ret;
      },getStr:function() {
        var ret = UTF8ToString(SYSCALLS.get());
        return ret;
      },getStreamFromFD:function(fd) {
        // TODO: when all syscalls use wasi, can remove the next line
        if (fd === undefined) fd = SYSCALLS.get();
        var stream = FS.getStream(fd);
        if (!stream) throw new FS.ErrnoError(8);
        return stream;
      },get64:function() {
        var low = SYSCALLS.get(), high = SYSCALLS.get();
        return low;
      },getZero:function() {
        SYSCALLS.get();
      }};
  Module["SYSCALLS"] = SYSCALLS;function ___syscall10(which, varargs) {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(2, 1, which, varargs);
  SYSCALLS.varargs = varargs;
  try {
   // unlink
      var path = SYSCALLS.getStr();
      FS.unlink(path);
      return 0;
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }
  
  Module["___syscall10"] = ___syscall10;

  function ___syscall12(which, varargs) {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(3, 1, which, varargs);
  SYSCALLS.varargs = varargs;
  try {
   // chdir
      var path = SYSCALLS.getStr();
      FS.chdir(path);
      return 0;
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }
  
  Module["___syscall12"] = ___syscall12;

  function ___syscall183(which, varargs) {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(4, 1, which, varargs);
  SYSCALLS.varargs = varargs;
  try {
   // getcwd
      var buf = SYSCALLS.get(), size = SYSCALLS.get();
      if (size === 0) return -28;
      var cwd = FS.cwd();
      var cwdLengthInBytes = lengthBytesUTF8(cwd);
      if (size < cwdLengthInBytes + 1) return -68;
      stringToUTF8(cwd, buf, size);
      return buf;
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }
  
  Module["___syscall183"] = ___syscall183;

  function ___syscall195(which, varargs) {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(5, 1, which, varargs);
  SYSCALLS.varargs = varargs;
  try {
   // SYS_stat64
      var path = SYSCALLS.getStr(), buf = SYSCALLS.get();
      return SYSCALLS.doStat(FS.stat, path, buf);
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }
  
  Module["___syscall195"] = ___syscall195;

  function ___syscall196(which, varargs) {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(6, 1, which, varargs);
  SYSCALLS.varargs = varargs;
  try {
   // SYS_lstat64
      var path = SYSCALLS.getStr(), buf = SYSCALLS.get();
      return SYSCALLS.doStat(FS.lstat, path, buf);
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }
  
  Module["___syscall196"] = ___syscall196;

  function ___syscall220(which, varargs) {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(7, 1, which, varargs);
  SYSCALLS.varargs = varargs;
  try {
   // SYS_getdents64
      var stream = SYSCALLS.getStreamFromFD(), dirp = SYSCALLS.get(), count = SYSCALLS.get();
      if (!stream.getdents) {
        stream.getdents = FS.readdir(stream.path);
      }
  
      var struct_size = 280;
      var pos = 0;
      var off = FS.llseek(stream, 0, 1);
  
      var idx = Math.floor(off / struct_size);
  
      while (idx < stream.getdents.length && pos + struct_size <= count) {
        var id;
        var type;
        var name = stream.getdents[idx];
        if (name[0] === '.') {
          id = 1;
          type = 4; // DT_DIR
        } else {
          var child = FS.lookupNode(stream.node, name);
          id = child.id;
          type = FS.isChrdev(child.mode) ? 2 :  // DT_CHR, character device.
                 FS.isDir(child.mode) ? 4 :     // DT_DIR, directory.
                 FS.isLink(child.mode) ? 10 :   // DT_LNK, symbolic link.
                 8;                             // DT_REG, regular file.
        }
        (tempI64 = [id>>>0,(tempDouble=id,(+(Math_abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math_min((+(Math_floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math_ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[((dirp + pos)>>2)]=tempI64[0],HEAP32[(((dirp + pos)+(4))>>2)]=tempI64[1]);
        (tempI64 = [(idx + 1) * struct_size>>>0,(tempDouble=(idx + 1) * struct_size,(+(Math_abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math_min((+(Math_floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math_ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[(((dirp + pos)+(8))>>2)]=tempI64[0],HEAP32[(((dirp + pos)+(12))>>2)]=tempI64[1]);
        HEAP16[(((dirp + pos)+(16))>>1)]=280;
        HEAP8[(((dirp + pos)+(18))>>0)]=type;
        stringToUTF8(name, dirp + pos + 19, 256);
        pos += struct_size;
        idx += 1;
      }
      FS.llseek(stream, idx * struct_size, 0);
      return pos;
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }
  
  Module["___syscall220"] = ___syscall220;

  function ___syscall221(which, varargs) {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(8, 1, which, varargs);
  SYSCALLS.varargs = varargs;
  try {
   // fcntl64
      var stream = SYSCALLS.getStreamFromFD(), cmd = SYSCALLS.get();
      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;  // FD_CLOEXEC makes no sense for a single process.
        case 3:
          return stream.flags;
        case 4: {
          var arg = SYSCALLS.get();
          stream.flags |= arg;
          return 0;
        }
        case 12:
        /* case 12: Currently in musl F_GETLK64 has same value as F_GETLK, so omitted to avoid duplicate case blocks. If that changes, uncomment this */ {
          
          var arg = SYSCALLS.get();
          var offset = 0;
          // We're always unlocked.
          HEAP16[(((arg)+(offset))>>1)]=2;
          return 0;
        }
        case 13:
        case 14:
        /* case 13: Currently in musl F_SETLK64 has same value as F_SETLK, so omitted to avoid duplicate case blocks. If that changes, uncomment this */
        /* case 14: Currently in musl F_SETLKW64 has same value as F_SETLKW, so omitted to avoid duplicate case blocks. If that changes, uncomment this */
          
          
          return 0; // Pretend that the locking is successful.
        case 16:
        case 8:
          return -28; // These are for sockets. We don't have them fully implemented yet.
        case 9:
          // musl trusts getown return values, due to a bug where they must be, as they overlap with errors. just return -1 here, so fnctl() returns that, and we set errno ourselves.
          ___setErrNo(28);
          return -1;
        default: {
          return -28;
        }
      }
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }
  
  Module["___syscall221"] = ___syscall221;

  function ___syscall3(which, varargs) {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(9, 1, which, varargs);
  SYSCALLS.varargs = varargs;
  try {
   // read
      var stream = SYSCALLS.getStreamFromFD(), buf = SYSCALLS.get(), count = SYSCALLS.get();
      return FS.read(stream, HEAP8,buf, count);
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }
  
  Module["___syscall3"] = ___syscall3;

  function ___syscall39(which, varargs) {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(10, 1, which, varargs);
  SYSCALLS.varargs = varargs;
  try {
   // mkdir
      var path = SYSCALLS.getStr(), mode = SYSCALLS.get();
      return SYSCALLS.doMkdir(path, mode);
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }
  
  Module["___syscall39"] = ___syscall39;

  function ___syscall4(which, varargs) {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(11, 1, which, varargs);
  SYSCALLS.varargs = varargs;
  try {
   // write
      var stream = SYSCALLS.getStreamFromFD(), buf = SYSCALLS.get(), count = SYSCALLS.get();
      return FS.write(stream, HEAP8,buf, count);
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }
  
  Module["___syscall4"] = ___syscall4;

  function ___syscall40(which, varargs) {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(12, 1, which, varargs);
  SYSCALLS.varargs = varargs;
  try {
   // rmdir
      var path = SYSCALLS.getStr();
      FS.rmdir(path);
      return 0;
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }
  
  Module["___syscall40"] = ___syscall40;

  function ___syscall5(which, varargs) {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(13, 1, which, varargs);
  SYSCALLS.varargs = varargs;
  try {
   // open
      var pathname = SYSCALLS.getStr(), flags = SYSCALLS.get(), mode = SYSCALLS.get(); // optional TODO
      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;
  }
  }
  
  Module["___syscall5"] = ___syscall5;

  function ___syscall54(which, varargs) {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(14, 1, which, varargs);
  SYSCALLS.varargs = varargs;
  try {
   // ioctl
      var stream = SYSCALLS.getStreamFromFD(), op = SYSCALLS.get();
      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; // no-op, not actually adjusting terminal settings
        }
        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; // not supported
        }
        case 21531: {
          var argp = SYSCALLS.get();
          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;
          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;
        }
        default: abort('bad ioctl syscall ' + op);
      }
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }
  
  Module["___syscall54"] = ___syscall54;

  function ___syscall85(which, varargs) {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(15, 1, which, varargs);
  SYSCALLS.varargs = varargs;
  try {
   // readlink
      var path = SYSCALLS.getStr(), buf = SYSCALLS.get(), bufsize = SYSCALLS.get();
      return SYSCALLS.doReadlink(path, buf, bufsize);
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }
  
  Module["___syscall85"] = ___syscall85;

  
  function __emscripten_syscall_munmap(addr, len) {
      if (addr === -1 || len === 0) {
        return -28;
      }
      // TODO: support unmmap'ing parts of allocations
      var info = SYSCALLS.mappings[addr];
      if (!info) return 0;
      if (len === info.len) {
        var stream = FS.getStream(info.fd);
        SYSCALLS.doMsync(addr, stream, len, info.flags);
        FS.munmap(stream);
        SYSCALLS.mappings[addr] = null;
        if (info.allocated) {
          _free(info.malloc);
        }
      }
      return 0;
    }
  Module["__emscripten_syscall_munmap"] = __emscripten_syscall_munmap;function ___syscall91(which, varargs) {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(16, 1, which, varargs);
  SYSCALLS.varargs = varargs;
  try {
   // munmap
      var addr = SYSCALLS.get(), len = SYSCALLS.get();
      return __emscripten_syscall_munmap(addr, len);
    } catch (e) {
    if (typeof FS === 'undefined' || !(e instanceof FS.ErrnoError)) abort(e);
    return -e.errno;
  }
  }
  
  Module["___syscall91"] = ___syscall91;

  function ___unlock() {}
  Module["___unlock"] = ___unlock;

  function _abort() {
      abort();
    }
  Module["_abort"] = _abort;


  function _emscripten_check_blocking_allowed() {
    }
  Module["_emscripten_check_blocking_allowed"] = _emscripten_check_blocking_allowed;

  
  function _emscripten_conditional_set_current_thread_status_js(expectedStatus, newStatus) {
    }
  Module["_emscripten_conditional_set_current_thread_status_js"] = _emscripten_conditional_set_current_thread_status_js;function _emscripten_conditional_set_current_thread_status(expectedStatus, newStatus) {
      expectedStatus = expectedStatus|0;
      newStatus = newStatus|0;
    }
  Module["_emscripten_conditional_set_current_thread_status"] = _emscripten_conditional_set_current_thread_status;

  function _emscripten_futex_wait(addr, val, timeout) {
      if (addr <= 0 || addr > HEAP8.length || addr&3 != 0) return -28;
  //    dump('futex_wait addr:' + addr + ' by thread: ' + _pthread_self() + (ENVIRONMENT_IS_PTHREAD?'(pthread)':'') + '\n');
      if (ENVIRONMENT_IS_WORKER) {
        var ret = Atomics.wait(HEAP32, addr >> 2, val, timeout);
  //    dump('futex_wait done by thread: ' + _pthread_self() + (ENVIRONMENT_IS_PTHREAD?'(pthread)':'') + '\n');
        if (ret === 'timed-out') return -73;
        if (ret === 'not-equal') return -6;
        if (ret === 'ok') return 0;
        throw 'Atomics.wait returned an unexpected value ' + ret;
      } else {
        // Atomics.wait is not available in the main browser thread, so simulate it via busy spinning.
        var loadedVal = Atomics.load(HEAP32, addr >> 2);
        if (val != loadedVal) return -6;
  
        var tNow = performance.now();
        var tEnd = tNow + timeout;
  
  
        // Register globally which address the main thread is simulating to be waiting on. When zero, main thread is not waiting on anything,
        // and on nonzero, the contents of address pointed by __main_thread_futex_wait_address tell which address the main thread is simulating its wait on.
        Atomics.store(HEAP32, __main_thread_futex_wait_address >> 2, addr);
        var ourWaitAddress = addr; // We may recursively re-enter this function while processing queued calls, in which case we'll do a spurious wakeup of the older wait operation.
        while (addr == ourWaitAddress) {
          tNow = performance.now();
          if (tNow > tEnd) {
            return -73;
          }
          _emscripten_main_thread_process_queued_calls(); // We are performing a blocking loop here, so must pump any pthreads if they want to perform operations that are proxied.
          addr = Atomics.load(HEAP32, __main_thread_futex_wait_address >> 2); // Look for a worker thread waking us up.
        }
        return 0;
      }
    }
  Module["_emscripten_futex_wait"] = _emscripten_futex_wait;


  function _emscripten_get_heap_size() {
      return HEAP8.length;
    }
  Module["_emscripten_get_heap_size"] = _emscripten_get_heap_size;


  function _emscripten_get_sbrk_ptr() {
      return 10203408;
    }
  Module["_emscripten_get_sbrk_ptr"] = _emscripten_get_sbrk_ptr;

  function _emscripten_has_threading_support() {
      return typeof SharedArrayBuffer !== 'undefined';
    }
  Module["_emscripten_has_threading_support"] = _emscripten_has_threading_support;

  function _emscripten_is_main_browser_thread() {
      return __pthread_is_main_browser_thread|0; // Semantically the same as testing "!ENVIRONMENT_IS_WORKER" outside the asm.js scope
    }
  Module["_emscripten_is_main_browser_thread"] = _emscripten_is_main_browser_thread;

  function _emscripten_is_main_runtime_thread() {
      return __pthread_is_main_runtime_thread|0; // Semantically the same as testing "!ENVIRONMENT_IS_PTHREAD" outside the asm.js scope
    }
  Module["_emscripten_is_main_runtime_thread"] = _emscripten_is_main_runtime_thread;

  
  
  
  var setjmpId=0;
  Module["setjmpId"] = setjmpId;function _saveSetjmp(env, label, table, size) {
      // Not particularly fast: slow table lookup of setjmpId to label. But setjmp
      // prevents relooping anyhow, so slowness is to be expected. And typical case
      // is 1 setjmp per invocation, or less.
      env = env|0;
      label = label|0;
      table = table|0;
      size = size|0;
      var i = 0;
      setjmpId = (setjmpId+1)|0;
      HEAP32[((env)>>2)]=setjmpId;
      while ((i|0) < (size|0)) {
        if (((HEAP32[(((table)+((i<<3)))>>2)])|0) == 0) {
          HEAP32[(((table)+((i<<3)))>>2)]=setjmpId;
          HEAP32[(((table)+((i<<3)+4))>>2)]=label;
          // prepare next slot
          HEAP32[(((table)+((i<<3)+8))>>2)]=0;
          setTempRet0((size) | 0);
          return table | 0;
        }
        i = i+1|0;
      }
      // grow the table
      size = (size*2)|0;
      table = _realloc(table|0, 8*(size+1|0)|0) | 0;
      table = _saveSetjmp(env|0, label|0, table|0, size|0) | 0;
      setTempRet0((size) | 0);
      return table | 0;
    }
  Module["_saveSetjmp"] = _saveSetjmp;
  
  function _testSetjmp(id, table, size) {
      id = id|0;
      table = table|0;
      size = size|0;
      var i = 0, curr = 0;
      while ((i|0) < (size|0)) {
        curr = ((HEAP32[(((table)+((i<<3)))>>2)])|0);
        if ((curr|0) == 0) break;
        if ((curr|0) == (id|0)) {
          return ((HEAP32[(((table)+((i<<3)+4))>>2)])|0);
        }
        i = i+1|0;
      }
      return 0;
    }
  Module["_testSetjmp"] = _testSetjmp;function _longjmp(env, value) {
      _setThrew(env, value || 1);
      throw 'longjmp';
    }
  Module["_longjmp"] = _longjmp;function _emscripten_longjmp(env, value) {
      _longjmp(env, value);
    }
  Module["_emscripten_longjmp"] = _emscripten_longjmp;

  function _emscripten_memcpy_big(dest, src, num) {
      HEAPU8.set(HEAPU8.subarray(src, src+num), dest);
    }
  Module["_emscripten_memcpy_big"] = _emscripten_memcpy_big;

  
  function _emscripten_proxy_to_main_thread_js(index, sync) {
      // Additional arguments are passed after those two, which are the actual
      // function arguments.
      // The serialization buffer contains the number of call params, and then
      // all the args here.
      // We also pass 'sync' to C separately, since C needs to look at it.
      var numCallArgs = arguments.length - 2;
      // Allocate a buffer, which will be copied by the C code.
      var stack = stackSave();
      // First passed parameter specifies the number of arguments to the function.
      var args = stackAlloc(numCallArgs * 8);
      var b = args >> 3;
      for (var i = 0; i < numCallArgs; i++) {
        HEAPF64[b + i] = arguments[2 + i];
      }
      var ret = _emscripten_run_in_main_runtime_thread_js(index, numCallArgs, args, sync);
      stackRestore(stack);
      return ret;
    }
  Module["_emscripten_proxy_to_main_thread_js"] = _emscripten_proxy_to_main_thread_js;
  
  var _emscripten_receive_on_main_thread_js_callArgs=[];
  Module["_emscripten_receive_on_main_thread_js_callArgs"] = _emscripten_receive_on_main_thread_js_callArgs;function _emscripten_receive_on_main_thread_js(index, numCallArgs, args) {
      _emscripten_receive_on_main_thread_js_callArgs.length = numCallArgs;
      var b = args >> 3;
      for (var i = 0; i < numCallArgs; i++) {
        _emscripten_receive_on_main_thread_js_callArgs[i] = HEAPF64[b + i];
      }
      // Proxied JS library funcs are encoded as positive values, and
      // EM_ASMs as negative values (see include_asm_consts)
      var isEmAsmConst = index < 0;
      var func = !isEmAsmConst ? proxiedFunctionTable[index] : ASM_CONSTS[-index - 1];
      if (isEmAsmConst) {
        // EM_ASM arguments are stored in their own buffer in memory, that we need
        // to unpack in order to call. The proxied arguments are the code index,
        // signature pointer, and vararg buffer pointer, in that order.
        var sigPtr = _emscripten_receive_on_main_thread_js_callArgs[1];
        var varargPtr = _emscripten_receive_on_main_thread_js_callArgs[2];
        var constArgs = readAsmConstArgs(sigPtr, varargPtr);
        return func.apply(null, constArgs);
      }
      return func.apply(null, _emscripten_receive_on_main_thread_js_callArgs);
    }
  Module["_emscripten_receive_on_main_thread_js"] = _emscripten_receive_on_main_thread_js;

  
  function abortOnCannotGrowMemory(requestedSize) {
      abort('OOM');
    }
  Module["abortOnCannotGrowMemory"] = abortOnCannotGrowMemory;function _emscripten_resize_heap(requestedSize) {
      abortOnCannotGrowMemory(requestedSize);
    }
  Module["_emscripten_resize_heap"] = _emscripten_resize_heap;

  
  var JSEvents={keyEvent:0,mouseEvent:0,wheelEvent:0,uiEvent:0,focusEvent:0,deviceOrientationEvent:0,deviceMotionEvent:0,fullscreenChangeEvent:0,pointerlockChangeEvent:0,visibilityChangeEvent:0,touchEvent:0,previousFullscreenElement:null,previousScreenX:null,previousScreenY:null,removeEventListenersRegistered:false,removeAllEventListeners:function() {
        for(var i = JSEvents.eventHandlers.length-1; i >= 0; --i) {
          JSEvents._removeHandler(i);
        }
        JSEvents.eventHandlers = [];
        JSEvents.deferredCalls = [];
      },registerRemoveEventListeners:function() {
        if (!JSEvents.removeEventListenersRegistered) {
          __ATEXIT__.push(JSEvents.removeAllEventListeners);
          JSEvents.removeEventListenersRegistered = true;
        }
      },deferredCalls:[],deferCall:function(targetFunction, precedence, argsList) {
        function arraysHaveEqualContent(arrA, arrB) {
          if (arrA.length != arrB.length) return false;
  
          for(var i in arrA) {
            if (arrA[i] != arrB[i]) return false;
          }
          return true;
        }
        // Test if the given call was already queued, and if so, don't add it again.
        for(var i in JSEvents.deferredCalls) {
          var call = JSEvents.deferredCalls[i];
          if (call.targetFunction == targetFunction && arraysHaveEqualContent(call.argsList, argsList)) {
            return;
          }
        }
        JSEvents.deferredCalls.push({
          targetFunction: targetFunction,
          precedence: precedence,
          argsList: argsList
        });
  
        JSEvents.deferredCalls.sort(function(x,y) { return x.precedence < y.precedence; });
      },removeDeferredCalls:function(targetFunction) {
        for(var i = 0; i < JSEvents.deferredCalls.length; ++i) {
          if (JSEvents.deferredCalls[i].targetFunction == targetFunction) {
            JSEvents.deferredCalls.splice(i, 1);
            --i;
          }
        }
      },canPerformEventHandlerRequests:function() {
        return JSEvents.inEventHandler && JSEvents.currentEventHandler.allowsDeferredCalls;
      },runDeferredCalls:function() {
        if (!JSEvents.canPerformEventHandlerRequests()) {
          return;
        }
        for(var i = 0; i < JSEvents.deferredCalls.length; ++i) {
          var call = JSEvents.deferredCalls[i];
          JSEvents.deferredCalls.splice(i, 1);
          --i;
          call.targetFunction.apply(this, call.argsList);
        }
      },inEventHandler:0,currentEventHandler:null,eventHandlers:[],isInternetExplorer:function() { return navigator.userAgent.indexOf('MSIE') !== -1 || navigator.appVersion.indexOf('Trident/') > 0; },removeAllHandlersOnTarget:function(target, eventTypeString) {
        for(var i = 0; i < JSEvents.eventHandlers.length; ++i) {
          if (JSEvents.eventHandlers[i].target == target && 
            (!eventTypeString || eventTypeString == JSEvents.eventHandlers[i].eventTypeString)) {
             JSEvents._removeHandler(i--);
           }
        }
      },_removeHandler:function(i) {
        var h = JSEvents.eventHandlers[i];
        h.target.removeEventListener(h.eventTypeString, h.eventListenerFunc, h.useCapture);
        JSEvents.eventHandlers.splice(i, 1);
      },registerOrRemoveHandler:function(eventHandler) {
        var jsEventHandler = function jsEventHandler(event) {
          // Increment nesting count for the event handler.
          ++JSEvents.inEventHandler;
          JSEvents.currentEventHandler = eventHandler;
          // Process any old deferred calls the user has placed.
          JSEvents.runDeferredCalls();
          // Process the actual event, calls back to user C code handler.
          eventHandler.handlerFunc(event);
          // Process any new deferred calls that were placed right now from this event handler.
          JSEvents.runDeferredCalls();
          // Out of event handler - restore nesting count.
          --JSEvents.inEventHandler;
        };
        
        if (eventHandler.callbackfunc) {
          eventHandler.eventListenerFunc = jsEventHandler;
          eventHandler.target.addEventListener(eventHandler.eventTypeString, jsEventHandler, eventHandler.useCapture);
          JSEvents.eventHandlers.push(eventHandler);
          JSEvents.registerRemoveEventListeners();
        } else {
          for(var i = 0; i < JSEvents.eventHandlers.length; ++i) {
            if (JSEvents.eventHandlers[i].target == eventHandler.target
             && JSEvents.eventHandlers[i].eventTypeString == eventHandler.eventTypeString) {
               JSEvents._removeHandler(i--);
             }
          }
        }
      },queueEventHandlerOnThread_iiii:function(targetThread, eventHandlerFunc, eventTypeId, eventData, userData) {
        var stackTop = stackSave();
        var varargs = stackAlloc(12);
        HEAP32[((varargs)>>2)]=eventTypeId;
        HEAP32[(((varargs)+(4))>>2)]=eventData;
        HEAP32[(((varargs)+(8))>>2)]=userData;
        _emscripten_async_queue_on_thread_(targetThread, 637534208, eventHandlerFunc, eventData, varargs);
        stackRestore(stackTop);
      },getTargetThreadForEventCallback:function(targetThread) {
        switch(targetThread) {
          case 1: return 0; // The event callback for the current event should be called on the main browser thread. (0 == don't proxy)
          case 2: return PThread.currentProxiedOperationCallerThread; // The event callback for the current event should be backproxied to the the thread that is registering the event.
          default: return targetThread; // The event callback for the current event should be proxied to the given specific thread.
        }
      },getBoundingClientRectOrZeros:function(target) {
        return target.getBoundingClientRect ? target.getBoundingClientRect() : { left: 0, top: 0 };
      },getNodeNameForTarget:function(target) {
        if (!target) return '';
        if (target == window) return '#window';
        if (target == screen) return '#screen';
        return (target && target.nodeName) ? target.nodeName : '';
      },tick:function() {
        if (window['performance'] && window['performance']['now']) return window['performance']['now']();
        else return Date.now();
      },fullscreenEnabled:function() {
        return document.fullscreenEnabled || document.mozFullScreenEnabled || document.webkitFullscreenEnabled || document.msFullscreenEnabled;
      }};
  Module["JSEvents"] = JSEvents;
  
  
  
  
  function stringToNewUTF8(jsString) {
      var length = lengthBytesUTF8(jsString)+1;
      var cString = _malloc(length);
      stringToUTF8(jsString, cString, length);
      return cString;
    }
  Module["stringToNewUTF8"] = stringToNewUTF8;function _emscripten_set_offscreencanvas_size_on_target_thread_js(targetThread, targetCanvas, width, height) {
      var stackTop = stackSave();
      var varargs = stackAlloc(12);
      var targetCanvasPtr = 0;
      if (targetCanvas) {
        targetCanvasPtr = stringToNewUTF8(targetCanvas);
      }
      HEAP32[((varargs)>>2)]=targetCanvasPtr;
      HEAP32[(((varargs)+(4))>>2)]=width;
      HEAP32[(((varargs)+(8))>>2)]=height;
      // Note: If we are also a pthread, the call below could theoretically be done synchronously. However if the target pthread is waiting for a mutex from us, then
      // these two threads will deadlock. At the moment, we'd like to consider that this kind of deadlock would be an Emscripten runtime bug, although if
      // emscripten_set_canvas_element_size() was documented to require running an event in the queue of thread that owns the OffscreenCanvas, then that might be ok.
      // (safer this way however)
      _emscripten_async_queue_on_thread_(targetThread, 657457152, 0, targetCanvasPtr /* satellite data */, varargs);
      stackRestore(stackTop);
    }
  Module["_emscripten_set_offscreencanvas_size_on_target_thread_js"] = _emscripten_set_offscreencanvas_size_on_target_thread_js;function _emscripten_set_offscreencanvas_size_on_target_thread(targetThread, targetCanvas, width, height) {
      targetCanvas = targetCanvas ? UTF8ToString(targetCanvas) : '';
      _emscripten_set_offscreencanvas_size_on_target_thread_js(targetThread, targetCanvas, width, height);
    }
  Module["_emscripten_set_offscreencanvas_size_on_target_thread"] = _emscripten_set_offscreencanvas_size_on_target_thread;
  
  
  
  var __specialEventTargets=[0, typeof document !== 'undefined' ? document : 0, typeof window !== 'undefined' ? window : 0];
  Module["__specialEventTargets"] = __specialEventTargets;function __findEventTarget(target) {
      try {
        // The sensible "default" target varies between events, but use window as the default
        // since DOM events mostly can default to that. Specific callback registrations
        // override their own defaults.
        if (!target) return window;
        if (typeof target === "number") target = __specialEventTargets[target] || UTF8ToString(target);
        if (target === '#window') return window;
        else if (target === '#document') return document;
        else if (target === '#screen') return screen;
        else if (target === '#canvas') return Module['canvas'];
        return (typeof target === 'string') ? document.getElementById(target) : target;
      } catch(e) {
        // In Web Workers, some objects above, such as '#document' do not exist. Gracefully
        // return null for them.
        return null;
      }
    }
  Module["__findEventTarget"] = __findEventTarget;function __findCanvasEventTarget(target) {
      if (typeof target === 'number') target = UTF8ToString(target);
      if (!target || target === '#canvas') {
        if (typeof GL !== 'undefined' && GL.offscreenCanvases['canvas']) return GL.offscreenCanvases['canvas']; // TODO: Remove this line, target '#canvas' should refer only to Module['canvas'], not to GL.offscreenCanvases['canvas'] - but need stricter tests to be able to remove this line.
        return Module['canvas'];
      }
      if (typeof GL !== 'undefined' && GL.offscreenCanvases[target]) return GL.offscreenCanvases[target];
      return __findEventTarget(target);
    }
  Module["__findCanvasEventTarget"] = __findCanvasEventTarget;function _emscripten_set_canvas_element_size_calling_thread(target, width, height) {
      var canvas = __findCanvasEventTarget(target);
      if (!canvas) return -4;
  
      if (canvas.canvasSharedPtr) {
        // N.B. We hold the canvasSharedPtr info structure as the authoritative source for specifying the size of a canvas
        // since the actual canvas size changes are asynchronous if the canvas is owned by an OffscreenCanvas on another thread.
        // Therefore when setting the size, eagerly set the size of the canvas on the calling thread here, though this thread
        // might not be the one that actually ends up specifying the size, but the actual size change may be dispatched
        // as an asynchronous event below.
        HEAP32[((canvas.canvasSharedPtr)>>2)]=width;
        HEAP32[(((canvas.canvasSharedPtr)+(4))>>2)]=height;
      }
  
      if (canvas.offscreenCanvas || !canvas.controlTransferredOffscreen) {
        if (canvas.offscreenCanvas) canvas = canvas.offscreenCanvas;
        var autoResizeViewport = false;
        if (canvas.GLctxObject && canvas.GLctxObject.GLctx) {
          var prevViewport = canvas.GLctxObject.GLctx.getParameter(canvas.GLctxObject.GLctx.VIEWPORT);
          // TODO: Perhaps autoResizeViewport should only be true if FBO 0 is currently active?
          autoResizeViewport = (prevViewport[0] === 0 && prevViewport[1] === 0 && prevViewport[2] === canvas.width && prevViewport[3] === canvas.height);
        }
        canvas.width = width;
        canvas.height = height;
        if (autoResizeViewport) {
          // TODO: Add -s CANVAS_RESIZE_SETS_GL_VIEWPORT=0/1 option (default=1). This is commonly done and several graphics engines depend on this,
          // but this can be quite disruptive.
          canvas.GLctxObject.GLctx.viewport(0, 0, width, height);
        }
      } else if (canvas.canvasSharedPtr) {
        var targetThread = HEAP32[(((canvas.canvasSharedPtr)+(8))>>2)];
        _emscripten_set_offscreencanvas_size_on_target_thread(targetThread, target, width, height);
        return 1; // This will have to be done asynchronously
      } else {
        return -4;
      }
      return 0;
    }
  Module["_emscripten_set_canvas_element_size_calling_thread"] = _emscripten_set_canvas_element_size_calling_thread;
  
  function _emscripten_set_canvas_element_size_main_thread(target, width, height) {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(17, 1, target, width, height);
   return _emscripten_set_canvas_element_size_calling_thread(target, width, height); }
  
  Module["_emscripten_set_canvas_element_size_main_thread"] = _emscripten_set_canvas_element_size_main_thread;function _emscripten_set_canvas_element_size(target, width, height) {
      var canvas = __findCanvasEventTarget(target);
      if (canvas) {
        return _emscripten_set_canvas_element_size_calling_thread(target, width, height);
      } else {
        return _emscripten_set_canvas_element_size_main_thread(target, width, height);
      }
    }
  Module["_emscripten_set_canvas_element_size"] = _emscripten_set_canvas_element_size;

  
  function _emscripten_set_current_thread_status_js(newStatus) {
    }
  Module["_emscripten_set_current_thread_status_js"] = _emscripten_set_current_thread_status_js;function _emscripten_set_current_thread_status(newStatus) {
      newStatus = newStatus|0;
    }
  Module["_emscripten_set_current_thread_status"] = _emscripten_set_current_thread_status;

  
  function _emscripten_set_thread_name_js(threadId, name) {
    }
  Module["_emscripten_set_thread_name_js"] = _emscripten_set_thread_name_js;function _emscripten_set_thread_name(threadId, name) {
      threadId = threadId|0;
      name = name|0;
    }
  Module["_emscripten_set_thread_name"] = _emscripten_set_thread_name;

  function _emscripten_syscall(which, varargs) {
    switch (which) {
      case 10: return ___syscall10(which, varargs);
      case 12: return ___syscall12(which, varargs);
      case 183: return ___syscall183(which, varargs);
      case 195: return ___syscall195(which, varargs);
      case 196: return ___syscall196(which, varargs);
      case 220: return ___syscall220(which, varargs);
      case 221: return ___syscall221(which, varargs);
      case 3: return ___syscall3(which, varargs);
      case 39: return ___syscall39(which, varargs);
      case 4: return ___syscall4(which, varargs);
      case 40: return ___syscall40(which, varargs);
      case 5: return ___syscall5(which, varargs);
      case 54: return ___syscall54(which, varargs);
      case 85: return ___syscall85(which, varargs);
      case 91: return ___syscall91(which, varargs);
      default: throw "surprising proxied syscall: " + which;
    }
  }
  Module["_emscripten_syscall"] = _emscripten_syscall;

  
  
  var __emscripten_webgl_power_preferences=['default', 'low-power', 'high-performance'];
  Module["__emscripten_webgl_power_preferences"] = __emscripten_webgl_power_preferences;
  
  var GL={counter:1,lastError:0,buffers:[],mappedBuffers:{},programs:[],framebuffers:[],renderbuffers:[],textures:[],uniforms:[],shaders:[],vaos:[],contexts:{},currentContext:null,offscreenCanvases:{},timerQueriesEXT:[],programInfos:{},stringCache:{},unpackAlignment:4,init:function() {
        GL.miniTempBuffer = new Float32Array(GL.MINI_TEMP_BUFFER_SIZE);
        for (var i = 0; i < GL.MINI_TEMP_BUFFER_SIZE; i++) {
          GL.miniTempBufferViews[i] = GL.miniTempBuffer.subarray(0, i+1);
        }
      },recordError:function recordError(errorCode) {
        if (!GL.lastError) {
          GL.lastError = errorCode;
        }
      },getNewId:function(table) {
        var ret = GL.counter++;
        for (var i = table.length; i < ret; i++) {
          table[i] = null;
        }
        return ret;
      },MINI_TEMP_BUFFER_SIZE:256,miniTempBuffer:null,miniTempBufferViews:[0],getSource:function(shader, count, string, length) {
        var source = '';
        for (var i = 0; i < count; ++i) {
          var len = length ? HEAP32[(((length)+(i*4))>>2)] : -1;
          source += UTF8ToString(HEAP32[(((string)+(i*4))>>2)], len < 0 ? undefined : len);
        }
        return source;
      },createContext:function(canvas, webGLContextAttributes) {
  
  
  
  
        var ctx = 
          (canvas.getContext("webgl", webGLContextAttributes) || canvas.getContext("experimental-webgl", webGLContextAttributes));
  
  
        if (!ctx) return 0;
  
        var handle = GL.registerContext(ctx, webGLContextAttributes);
  
  
  
        return handle;
      },registerContext:function(ctx, webGLContextAttributes) {
        var handle = _malloc(8); // Make space on the heap to store GL context attributes that need to be accessible as shared between threads.
        HEAP32[(((handle)+(4))>>2)]=_pthread_self(); // the thread pointer of the thread that owns the control of the context
        var context = {
          handle: handle,
          attributes: webGLContextAttributes,
          version: webGLContextAttributes.majorVersion,
          GLctx: ctx
        };
  
  
  
        // Store the created context object so that we can access the context given a canvas without having to pass the parameters again.
        if (ctx.canvas) ctx.canvas.GLctxObject = context;
        GL.contexts[handle] = context;
        if (typeof webGLContextAttributes.enableExtensionsByDefault === 'undefined' || webGLContextAttributes.enableExtensionsByDefault) {
          GL.initExtensions(context);
        }
  
  
  
  
        return handle;
      },makeContextCurrent:function(contextHandle) {
  
        GL.currentContext = GL.contexts[contextHandle]; // Active Emscripten GL layer context object.
        Module.ctx = GLctx = GL.currentContext && GL.currentContext.GLctx; // Active WebGL context object.
        return !(contextHandle && !GLctx);
      },getContext:function(contextHandle) {
        return GL.contexts[contextHandle];
      },deleteContext:function(contextHandle) {
        if (GL.currentContext === GL.contexts[contextHandle]) GL.currentContext = null;
        if (typeof JSEvents === 'object') JSEvents.removeAllHandlersOnTarget(GL.contexts[contextHandle].GLctx.canvas); // Release all JS event handlers on the DOM element that the GL context is associated with since the context is now deleted.
        if (GL.contexts[contextHandle] && GL.contexts[contextHandle].GLctx.canvas) GL.contexts[contextHandle].GLctx.canvas.GLctxObject = undefined; // Make sure the canvas object no longer refers to the context object so there are no GC surprises.
        _free(GL.contexts[contextHandle]);
        GL.contexts[contextHandle] = null;
      },acquireInstancedArraysExtension:function(ctx) {
        // Extension available in WebGL 1 from Firefox 26 and Google Chrome 30 onwards. Core feature in WebGL 2.
        var ext = ctx.getExtension('ANGLE_instanced_arrays');
        if (ext) {
          ctx['vertexAttribDivisor'] = function(index, divisor) { ext['vertexAttribDivisorANGLE'](index, divisor); };
          ctx['drawArraysInstanced'] = function(mode, first, count, primcount) { ext['drawArraysInstancedANGLE'](mode, first, count, primcount); };
          ctx['drawElementsInstanced'] = function(mode, count, type, indices, primcount) { ext['drawElementsInstancedANGLE'](mode, count, type, indices, primcount); };
        }
      },acquireVertexArrayObjectExtension:function(ctx) {
        // Extension available in WebGL 1 from Firefox 25 and WebKit 536.28/desktop Safari 6.0.3 onwards. Core feature in WebGL 2.
        var ext = ctx.getExtension('OES_vertex_array_object');
        if (ext) {
          ctx['createVertexArray'] = function() { return ext['createVertexArrayOES'](); };
          ctx['deleteVertexArray'] = function(vao) { ext['deleteVertexArrayOES'](vao); };
          ctx['bindVertexArray'] = function(vao) { ext['bindVertexArrayOES'](vao); };
          ctx['isVertexArray'] = function(vao) { return ext['isVertexArrayOES'](vao); };
        }
      },acquireDrawBuffersExtension:function(ctx) {
        // Extension available in WebGL 1 from Firefox 28 onwards. Core feature in WebGL 2.
        var ext = ctx.getExtension('WEBGL_draw_buffers');
        if (ext) {
          ctx['drawBuffers'] = function(n, bufs) { ext['drawBuffersWEBGL'](n, bufs); };
        }
      },initExtensions:function(context) {
        // If this function is called without a specific context object, init the extensions of the currently active context.
        if (!context) context = GL.currentContext;
  
        if (context.initExtensionsDone) return;
        context.initExtensionsDone = true;
  
        var GLctx = context.GLctx;
  
        // Detect the presence of a few extensions manually, this GL interop layer itself will need to know if they exist.
  
        if (context.version < 2) {
          GL.acquireInstancedArraysExtension(GLctx);
          GL.acquireVertexArrayObjectExtension(GLctx);
          GL.acquireDrawBuffersExtension(GLctx);
        }
  
        GLctx.disjointTimerQueryExt = GLctx.getExtension("EXT_disjoint_timer_query");
  
        // These are the 'safe' feature-enabling extensions that don't add any performance impact related to e.g. debugging, and
        // should be enabled by default so that client GLES2/GL code will not need to go through extra hoops to get its stuff working.
        // As new extensions are ratified at http://www.khronos.org/registry/webgl/extensions/ , feel free to add your new extensions
        // here, as long as they don't produce a performance impact for users that might not be using those extensions.
        // E.g. debugging-related extensions should probably be off by default.
        var automaticallyEnabledExtensions = [ // Khronos ratified WebGL extensions ordered by number (no debug extensions):
                                               "OES_texture_float", "OES_texture_half_float", "OES_standard_derivatives",
                                               "OES_vertex_array_object", "WEBGL_compressed_texture_s3tc", "WEBGL_depth_texture",
                                               "OES_element_index_uint", "EXT_texture_filter_anisotropic", "EXT_frag_depth",
                                               "WEBGL_draw_buffers", "ANGLE_instanced_arrays", "OES_texture_float_linear",
                                               "OES_texture_half_float_linear", "EXT_blend_minmax", "EXT_shader_texture_lod",
                                               // Community approved WebGL extensions ordered by number:
                                               "WEBGL_compressed_texture_pvrtc", "EXT_color_buffer_half_float", "WEBGL_color_buffer_float",
                                               "EXT_sRGB", "WEBGL_compressed_texture_etc1", "EXT_disjoint_timer_query",
                                               "WEBGL_compressed_texture_etc", "WEBGL_compressed_texture_astc", "EXT_color_buffer_float",
                                               "WEBGL_compressed_texture_s3tc_srgb", "EXT_disjoint_timer_query_webgl2",
                                               // Old style prefixed forms of extensions (but still currently used on e.g. iPhone Xs as
                                               // tested on iOS 12.4.1):
                                               "WEBKIT_WEBGL_compressed_texture_pvrtc"];
  
        function shouldEnableAutomatically(extension) {
          var ret = false;
          automaticallyEnabledExtensions.forEach(function(include) {
            if (extension.indexOf(include) != -1) {
              ret = true;
            }
          });
          return ret;
        }
  
        var exts = GLctx.getSupportedExtensions() || []; // .getSupportedExtensions() can return null if context is lost, so coerce to empty array.
        exts.forEach(function(ext) {
          if (automaticallyEnabledExtensions.indexOf(ext) != -1) {
            GLctx.getExtension(ext); // Calling .getExtension enables that extension permanently, no need to store the return value to be enabled.
          }
        });
      },populateUniformTable:function(program) {
        var p = GL.programs[program];
        var ptable = GL.programInfos[program] = {
          uniforms: {},
          maxUniformLength: 0, // This is eagerly computed below, since we already enumerate all uniforms anyway.
          maxAttributeLength: -1, // This is lazily computed and cached, computed when/if first asked, "-1" meaning not computed yet.
          maxUniformBlockNameLength: -1 // Lazily computed as well
        };
  
        var utable = ptable.uniforms;
        // A program's uniform table maps the string name of an uniform to an integer location of that uniform.
        // The global GL.uniforms map maps integer locations to WebGLUniformLocations.
        var numUniforms = GLctx.getProgramParameter(p, 0x8B86/*GL_ACTIVE_UNIFORMS*/);
        for (var i = 0; i < numUniforms; ++i) {
          var u = GLctx.getActiveUniform(p, i);
  
          var name = u.name;
          ptable.maxUniformLength = Math.max(ptable.maxUniformLength, name.length+1);
  
          // If we are dealing with an array, e.g. vec4 foo[3], strip off the array index part to canonicalize that "foo", "foo[]",
          // and "foo[0]" will mean the same. Loop below will populate foo[1] and foo[2].
          if (name.slice(-1) == ']') {
            name = name.slice(0, name.lastIndexOf('['));
          }
  
          // Optimize memory usage slightly: If we have an array of uniforms, e.g. 'vec3 colors[3];', then
          // only store the string 'colors' in utable, and 'colors[0]', 'colors[1]' and 'colors[2]' will be parsed as 'colors'+i.
          // Note that for the GL.uniforms table, we still need to fetch the all WebGLUniformLocations for all the indices.
          var loc = GLctx.getUniformLocation(p, name);
          if (loc) {
            var id = GL.getNewId(GL.uniforms);
            utable[name] = [u.size, id];
            GL.uniforms[id] = loc;
  
            for (var j = 1; j < u.size; ++j) {
              var n = name + '['+j+']';
              loc = GLctx.getUniformLocation(p, n);
              id = GL.getNewId(GL.uniforms);
  
              GL.uniforms[id] = loc;
            }
          }
        }
      }};
  Module["GL"] = GL;function _emscripten_webgl_do_create_context(target, attributes) {
      var contextAttributes = {};
      var a = attributes >> 2;
      contextAttributes['alpha'] = !!HEAP32[a + (0>>2)];
      contextAttributes['depth'] = !!HEAP32[a + (4>>2)];
      contextAttributes['stencil'] = !!HEAP32[a + (8>>2)];
      contextAttributes['antialias'] = !!HEAP32[a + (12>>2)];
      contextAttributes['premultipliedAlpha'] = !!HEAP32[a + (16>>2)];
      contextAttributes['preserveDrawingBuffer'] = !!HEAP32[a + (20>>2)];
      var powerPreference = HEAP32[a + (24>>2)];
      contextAttributes['powerPreference'] = __emscripten_webgl_power_preferences[powerPreference];
      contextAttributes['failIfMajorPerformanceCaveat'] = !!HEAP32[a + (28>>2)];
      contextAttributes.majorVersion = HEAP32[a + (32>>2)];
      contextAttributes.minorVersion = HEAP32[a + (36>>2)];
      contextAttributes.enableExtensionsByDefault = HEAP32[a + (40>>2)];
      contextAttributes.explicitSwapControl = HEAP32[a + (44>>2)];
      contextAttributes.proxyContextToMainThread = HEAP32[a + (48>>2)];
      contextAttributes.renderViaOffscreenBackBuffer = HEAP32[a + (52>>2)];
  
      var canvas = __findCanvasEventTarget(target);
  
  
  
      if (!canvas) {
        return 0;
      }
  
      if (contextAttributes.explicitSwapControl) {
        return 0;
      }
  
  
      var contextHandle = GL.createContext(canvas, contextAttributes);
      return contextHandle;
    }
  Module["_emscripten_webgl_do_create_context"] = _emscripten_webgl_do_create_context;function _emscripten_webgl_create_context(a0,a1
  ) {
  return _emscripten_webgl_do_create_context(a0,a1);
  }
  Module["_emscripten_webgl_create_context"] = _emscripten_webgl_create_context;

  
  
  var ENV={};
  Module["ENV"] = ENV;function _emscripten_get_environ() {
      if (!_emscripten_get_environ.strings) {
        // Default values.
        var env = {
          'USER': 'web_user',
          'LOGNAME': 'web_user',
          'PATH': '/',
          'PWD': '/',
          'HOME': '/home/web_user',
          // Browser language detection #8751
          'LANG': ((typeof navigator === 'object' && navigator.languages && navigator.languages[0]) || 'C').replace('-', '_') + '.UTF-8',
          '_': thisProgram
        };
        // Apply the user-provided values, if any.
        for (var x in ENV) {
          env[x] = ENV[x];
        }
        var strings = [];
        for (var x in env) {
          strings.push(x + '=' + env[x]);
        }
        _emscripten_get_environ.strings = strings;
      }
      return _emscripten_get_environ.strings;
    }
  Module["_emscripten_get_environ"] = _emscripten_get_environ;function _environ_get(__environ, environ_buf) {
      var strings = _emscripten_get_environ();
      var bufSize = 0;
      strings.forEach(function(string, i) {
        var ptr = environ_buf + bufSize;
        HEAP32[(((__environ)+(i * 4))>>2)]=ptr;
        writeAsciiToMemory(string, ptr);
        bufSize += string.length + 1;
      });
      return 0;
    }
  Module["_environ_get"] = _environ_get;

  function _environ_sizes_get(penviron_count, penviron_buf_size) {
      var strings = _emscripten_get_environ();
      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;
    }
  Module["_environ_sizes_get"] = _environ_sizes_get;

  function _exit(status) {
      // void _exit(int status);
      // http://pubs.opengroup.org/onlinepubs/000095399/functions/exit.html
      exit(status);
    }
  Module["_exit"] = _exit;

  function _fd_close(fd) {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(18, 1, 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;
  }
  }
  
  Module["_fd_close"] = _fd_close;

  function _fd_read(fd, iov, iovcnt, pnum) {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(19, 1, 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;
  }
  }
  
  Module["_fd_read"] = _fd_read;

  function _fd_seek(fd, offset_low, offset_high, whence, newOffset) {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(20, 1, fd, offset_low, offset_high, whence, newOffset);
  try {
  
      var stream = SYSCALLS.getStreamFromFD(fd);
      var HIGH_OFFSET = 0x100000000; // 2^32
      // use an unsigned operator on low and shift high by 32-bits
      var offset = offset_high * HIGH_OFFSET + (offset_low >>> 0);
  
      var DOUBLE_LIMIT = 0x20000000000000; // 2^53
      // we also check for equality since DOUBLE_LIMIT + 1 == DOUBLE_LIMIT
      if (offset <= -DOUBLE_LIMIT || offset >= DOUBLE_LIMIT) {
        return -61;
      }
  
      FS.llseek(stream, offset, whence);
      (tempI64 = [stream.position>>>0,(tempDouble=stream.position,(+(Math_abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math_min((+(Math_floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math_ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>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 instanceof FS.ErrnoError)) abort(e);
    return e.errno;
  }
  }
  
  Module["_fd_seek"] = _fd_seek;

  function _fd_write(fd, iov, iovcnt, pnum) {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(21, 1, 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;
  }
  }
  
  Module["_fd_write"] = _fd_write;

  function _getTempRet0() {
      return (getTempRet0() | 0);
    }
  Module["_getTempRet0"] = _getTempRet0;

  function _gettimeofday(ptr) {
      var now = Date.now();
      HEAP32[((ptr)>>2)]=(now/1000)|0; // seconds
      HEAP32[(((ptr)+(4))>>2)]=((now % 1000)*1000)|0; // microseconds
      return 0;
    }
  Module["_gettimeofday"] = _gettimeofday;

  
  var ___tm_current=10203424;
  Module["___tm_current"] = ___tm_current;
  
  
  var ___tm_timezone=(stringToUTF8("GMT", 10203472, 4), 10203472);
  Module["___tm_timezone"] = ___tm_timezone;function _gmtime_r(time, tmPtr) {
      var date = new Date(HEAP32[((time)>>2)]*1000);
      HEAP32[((tmPtr)>>2)]=date.getUTCSeconds();
      HEAP32[(((tmPtr)+(4))>>2)]=date.getUTCMinutes();
      HEAP32[(((tmPtr)+(8))>>2)]=date.getUTCHours();
      HEAP32[(((tmPtr)+(12))>>2)]=date.getUTCDate();
      HEAP32[(((tmPtr)+(16))>>2)]=date.getUTCMonth();
      HEAP32[(((tmPtr)+(20))>>2)]=date.getUTCFullYear()-1900;
      HEAP32[(((tmPtr)+(24))>>2)]=date.getUTCDay();
      HEAP32[(((tmPtr)+(36))>>2)]=0;
      HEAP32[(((tmPtr)+(32))>>2)]=0;
      var start = Date.UTC(date.getUTCFullYear(), 0, 1, 0, 0, 0, 0);
      var yday = ((date.getTime() - start) / (1000 * 60 * 60 * 24))|0;
      HEAP32[(((tmPtr)+(28))>>2)]=yday;
      HEAP32[(((tmPtr)+(40))>>2)]=___tm_timezone;
  
      return tmPtr;
    }
  Module["_gmtime_r"] = _gmtime_r;function _gmtime(time) {
      return _gmtime_r(time, ___tm_current);
    }
  Module["_gmtime"] = _gmtime;

  
  function _memcpy(dest, src, num) {
      dest = dest|0; src = src|0; num = num|0;
      var ret = 0;
      var aligned_dest_end = 0;
      var block_aligned_dest_end = 0;
      var dest_end = 0;
      // Test against a benchmarked cutoff limit for when HEAPU8.set() becomes faster to use.
      if ((num|0) >= 8192) {
        _emscripten_memcpy_big(dest|0, src|0, num|0)|0;
        return dest|0;
      }
  
      ret = dest|0;
      dest_end = (dest + num)|0;
      if ((dest&3) == (src&3)) {
        // The initial unaligned < 4-byte front.
        while (dest & 3) {
          if ((num|0) == 0) return ret|0;
          HEAP8[((dest)>>0)]=((HEAP8[((src)>>0)])|0);
          dest = (dest+1)|0;
          src = (src+1)|0;
          num = (num-1)|0;
        }
        aligned_dest_end = (dest_end & -4)|0;
        block_aligned_dest_end = (aligned_dest_end - 64)|0;
        while ((dest|0) <= (block_aligned_dest_end|0) ) {
          HEAP32[((dest)>>2)]=((HEAP32[((src)>>2)])|0);
          HEAP32[(((dest)+(4))>>2)]=((HEAP32[(((src)+(4))>>2)])|0);
          HEAP32[(((dest)+(8))>>2)]=((HEAP32[(((src)+(8))>>2)])|0);
          HEAP32[(((dest)+(12))>>2)]=((HEAP32[(((src)+(12))>>2)])|0);
          HEAP32[(((dest)+(16))>>2)]=((HEAP32[(((src)+(16))>>2)])|0);
          HEAP32[(((dest)+(20))>>2)]=((HEAP32[(((src)+(20))>>2)])|0);
          HEAP32[(((dest)+(24))>>2)]=((HEAP32[(((src)+(24))>>2)])|0);
          HEAP32[(((dest)+(28))>>2)]=((HEAP32[(((src)+(28))>>2)])|0);
          HEAP32[(((dest)+(32))>>2)]=((HEAP32[(((src)+(32))>>2)])|0);
          HEAP32[(((dest)+(36))>>2)]=((HEAP32[(((src)+(36))>>2)])|0);
          HEAP32[(((dest)+(40))>>2)]=((HEAP32[(((src)+(40))>>2)])|0);
          HEAP32[(((dest)+(44))>>2)]=((HEAP32[(((src)+(44))>>2)])|0);
          HEAP32[(((dest)+(48))>>2)]=((HEAP32[(((src)+(48))>>2)])|0);
          HEAP32[(((dest)+(52))>>2)]=((HEAP32[(((src)+(52))>>2)])|0);
          HEAP32[(((dest)+(56))>>2)]=((HEAP32[(((src)+(56))>>2)])|0);
          HEAP32[(((dest)+(60))>>2)]=((HEAP32[(((src)+(60))>>2)])|0);
          dest = (dest+64)|0;
          src = (src+64)|0;
        }
        while ((dest|0) < (aligned_dest_end|0) ) {
          HEAP32[((dest)>>2)]=((HEAP32[((src)>>2)])|0);
          dest = (dest+4)|0;
          src = (src+4)|0;
        }
      } else {
        // In the unaligned copy case, unroll a bit as well.
        aligned_dest_end = (dest_end - 4)|0;
        while ((dest|0) < (aligned_dest_end|0) ) {
          HEAP8[((dest)>>0)]=((HEAP8[((src)>>0)])|0);
          HEAP8[(((dest)+(1))>>0)]=((HEAP8[(((src)+(1))>>0)])|0);
          HEAP8[(((dest)+(2))>>0)]=((HEAP8[(((src)+(2))>>0)])|0);
          HEAP8[(((dest)+(3))>>0)]=((HEAP8[(((src)+(3))>>0)])|0);
          dest = (dest+4)|0;
          src = (src+4)|0;
        }
      }
      // The remaining unaligned < 4 byte tail.
      while ((dest|0) < (dest_end|0)) {
        HEAP8[((dest)>>0)]=((HEAP8[((src)>>0)])|0);
        dest = (dest+1)|0;
        src = (src+1)|0;
      }
      return ret|0;
    }
  Module["_memcpy"] = _memcpy;

  function _memset(ptr, value, num) {
      ptr = ptr|0; value = value|0; num = num|0;
      var end = 0, aligned_end = 0, block_aligned_end = 0, value4 = 0;
      end = (ptr + num)|0;
  
      value = value & 0xff;
      if ((num|0) >= 67 /* 64 bytes for an unrolled loop + 3 bytes for unaligned head*/) {
        while ((ptr&3) != 0) {
          HEAP8[((ptr)>>0)]=value;
          ptr = (ptr+1)|0;
        }
  
        aligned_end = (end & -4)|0;
        value4 = value | (value << 8) | (value << 16) | (value << 24);
  
        block_aligned_end = (aligned_end - 64)|0;
  
        while((ptr|0) <= (block_aligned_end|0)) {
          HEAP32[((ptr)>>2)]=value4;
          HEAP32[(((ptr)+(4))>>2)]=value4;
          HEAP32[(((ptr)+(8))>>2)]=value4;
          HEAP32[(((ptr)+(12))>>2)]=value4;
          HEAP32[(((ptr)+(16))>>2)]=value4;
          HEAP32[(((ptr)+(20))>>2)]=value4;
          HEAP32[(((ptr)+(24))>>2)]=value4;
          HEAP32[(((ptr)+(28))>>2)]=value4;
          HEAP32[(((ptr)+(32))>>2)]=value4;
          HEAP32[(((ptr)+(36))>>2)]=value4;
          HEAP32[(((ptr)+(40))>>2)]=value4;
          HEAP32[(((ptr)+(44))>>2)]=value4;
          HEAP32[(((ptr)+(48))>>2)]=value4;
          HEAP32[(((ptr)+(52))>>2)]=value4;
          HEAP32[(((ptr)+(56))>>2)]=value4;
          HEAP32[(((ptr)+(60))>>2)]=value4;
          ptr = (ptr + 64)|0;
        }
  
        while ((ptr|0) < (aligned_end|0) ) {
          HEAP32[((ptr)>>2)]=value4;
          ptr = (ptr+4)|0;
        }
      }
      // The remaining bytes.
      while ((ptr|0) < (end|0)) {
        HEAP8[((ptr)>>0)]=value;
        ptr = (ptr+1)|0;
      }
      return (end-num)|0;
    }
  Module["_memset"] = _memset;

  
  function _tzset() {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(22, 1);
  
      // TODO: Use (malleable) environment variables instead of system settings.
      if (_tzset.called) return;
      _tzset.called = true;
  
      // 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 getTimezoneOffset().
      // See http://pubs.opengroup.org/onlinepubs/009695399/functions/tzset.html
      HEAP32[((__get_timezone())>>2)]=(new Date()).getTimezoneOffset() * 60;
  
      var currentYear = new Date().getFullYear();
      var winter = new Date(currentYear, 0, 1);
      var summer = new Date(currentYear, 6, 1);
      HEAP32[((__get_daylight())>>2)]=Number(winter.getTimezoneOffset() != summer.getTimezoneOffset());
  
      function extractZone(date) {
        var match = date.toTimeString().match(/\(([A-Za-z ]+)\)$/);
        return match ? match[1] : "GMT";
      };
      var winterName = extractZone(winter);
      var summerName = extractZone(summer);
      var winterNamePtr = allocate(intArrayFromString(winterName), 'i8', ALLOC_NORMAL);
      var summerNamePtr = allocate(intArrayFromString(summerName), 'i8', ALLOC_NORMAL);
      if (summer.getTimezoneOffset() < winter.getTimezoneOffset()) {
        // Northern hemisphere
        HEAP32[((__get_tzname())>>2)]=winterNamePtr;
        HEAP32[(((__get_tzname())+(4))>>2)]=summerNamePtr;
      } else {
        HEAP32[((__get_tzname())>>2)]=summerNamePtr;
        HEAP32[(((__get_tzname())+(4))>>2)]=winterNamePtr;
      }
    }
  
  Module["_tzset"] = _tzset;function _mktime(tmPtr) {
      _tzset();
      var date = new Date(HEAP32[(((tmPtr)+(20))>>2)] + 1900,
                          HEAP32[(((tmPtr)+(16))>>2)],
                          HEAP32[(((tmPtr)+(12))>>2)],
                          HEAP32[(((tmPtr)+(8))>>2)],
                          HEAP32[(((tmPtr)+(4))>>2)],
                          HEAP32[((tmPtr)>>2)],
                          0);
  
      // There's an ambiguous hour when the time goes back; the tm_isdst field is
      // used to disambiguate it.  Date() basically guesses, so we fix it up if it
      // guessed wrong, or fill in tm_isdst with the guess if it's -1.
      var dst = HEAP32[(((tmPtr)+(32))>>2)];
      var guessedOffset = date.getTimezoneOffset();
      var start = new Date(date.getFullYear(), 0, 1);
      var summerOffset = new Date(date.getFullYear(), 6, 1).getTimezoneOffset();
      var winterOffset = start.getTimezoneOffset();
      var dstOffset = Math.min(winterOffset, summerOffset); // DST is in December in South
      if (dst < 0) {
        // Attention: some regions don't have DST at all.
        HEAP32[(((tmPtr)+(32))>>2)]=Number(summerOffset != winterOffset && dstOffset == guessedOffset);
      } else if ((dst > 0) != (dstOffset == guessedOffset)) {
        var nonDstOffset = Math.max(winterOffset, summerOffset);
        var trueOffset = dst > 0 ? dstOffset : nonDstOffset;
        // Don't try setMinutes(date.getMinutes() + ...) -- it's messed up.
        date.setTime(date.getTime() + (trueOffset - guessedOffset)*60000);
      }
  
      HEAP32[(((tmPtr)+(24))>>2)]=date.getDay();
      var yday = ((date.getTime() - start.getTime()) / (1000 * 60 * 60 * 24))|0;
      HEAP32[(((tmPtr)+(28))>>2)]=yday;
  
      return (date.getTime() / 1000)|0;
    }
  Module["_mktime"] = _mktime;

  function _pthread_cleanup_pop(execute) {
      var routine = PThread.exitHandlers.pop();
      if (execute) routine();
    }
  Module["_pthread_cleanup_pop"] = _pthread_cleanup_pop;

  function _pthread_cleanup_push(routine, arg) {
      if (PThread.exitHandlers === null) {
        PThread.exitHandlers = [];
        if (!ENVIRONMENT_IS_PTHREAD) {
          __ATEXIT__.push(function() { PThread.runExitHandlers(); });
        }
      }
      PThread.exitHandlers.push(function() { dynCall_vi(routine, arg) });
    }
  Module["_pthread_cleanup_push"] = _pthread_cleanup_push;

  
  function __spawn_thread(threadParams) {
      if (ENVIRONMENT_IS_PTHREAD) throw 'Internal Error! _spawn_thread() can only ever be called from main application thread!';
  
      var worker = PThread.getNewWorker();
  
      if (worker.pthread !== undefined) throw 'Internal error!';
      if (!threadParams.pthread_ptr) throw 'Internal error, no pthread ptr!';
      PThread.runningWorkers.push(worker);
  
      // Allocate memory for thread-local storage and initialize it to zero.
      var tlsMemory = _malloc(128 * 4);
      for (var i = 0; i < 128; ++i) {
        HEAP32[(((tlsMemory)+(i*4))>>2)]=0;
      }
  
      var stackHigh = threadParams.stackBase + threadParams.stackSize;
  
      var pthread = PThread.pthreads[threadParams.pthread_ptr] = { // Create a pthread info object to represent this thread.
        worker: worker,
        stackBase: threadParams.stackBase,
        stackSize: threadParams.stackSize,
        allocatedOwnStack: threadParams.allocatedOwnStack,
        thread: threadParams.pthread_ptr,
        threadInfoStruct: threadParams.pthread_ptr // Info area for this thread in Emscripten HEAP (shared)
      };
      Atomics.store(HEAPU32, (pthread.threadInfoStruct + 0 ) >> 2, 0); // threadStatus <- 0, meaning not yet exited.
      Atomics.store(HEAPU32, (pthread.threadInfoStruct + 4 ) >> 2, 0); // threadExitCode <- 0.
      Atomics.store(HEAPU32, (pthread.threadInfoStruct + 20 ) >> 2, 0); // profilerBlock <- 0.
      Atomics.store(HEAPU32, (pthread.threadInfoStruct + 80 ) >> 2, threadParams.detached);
      Atomics.store(HEAPU32, (pthread.threadInfoStruct + 116 ) >> 2, tlsMemory); // Init thread-local-storage memory array.
      Atomics.store(HEAPU32, (pthread.threadInfoStruct + 60 ) >> 2, 0); // Mark initial status to unused.
      Atomics.store(HEAPU32, (pthread.threadInfoStruct + 52 ) >> 2, pthread.threadInfoStruct); // Main thread ID.
      Atomics.store(HEAPU32, (pthread.threadInfoStruct + 56 ) >> 2, PROCINFO.pid); // Process ID.
  
      Atomics.store(HEAPU32, (pthread.threadInfoStruct + 120) >> 2, threadParams.stackSize);
      Atomics.store(HEAPU32, (pthread.threadInfoStruct + 96) >> 2, threadParams.stackSize);
      Atomics.store(HEAPU32, (pthread.threadInfoStruct + 92) >> 2, stackHigh);
      Atomics.store(HEAPU32, (pthread.threadInfoStruct + 120 + 8) >> 2, stackHigh);
      Atomics.store(HEAPU32, (pthread.threadInfoStruct + 120 + 12) >> 2, threadParams.detached);
      Atomics.store(HEAPU32, (pthread.threadInfoStruct + 120 + 20) >> 2, threadParams.schedPolicy);
      Atomics.store(HEAPU32, (pthread.threadInfoStruct + 120 + 24) >> 2, threadParams.schedPrio);
  
      var global_libc = _emscripten_get_global_libc();
      var global_locale = global_libc + 40;
      Atomics.store(HEAPU32, (pthread.threadInfoStruct + 188) >> 2, global_locale);
  
  
      worker.pthread = pthread;
      var msg = {
          'cmd': 'run',
          'start_routine': threadParams.startRoutine,
          'arg': threadParams.arg,
          'threadInfoStruct': threadParams.pthread_ptr,
          'selfThreadId': threadParams.pthread_ptr, // TODO: Remove this since thread ID is now the same as the thread address.
          'parentThreadId': threadParams.parent_pthread_ptr,
          'stackBase': threadParams.stackBase,
          'stackSize': threadParams.stackSize,
        };
      worker.runPthread = function() {
        // Ask the worker to start executing its pthread entry point function.
        msg.time = performance.now();
        worker.postMessage(msg, threadParams.transferList);
      };
      if (worker.loaded) {
        worker.runPthread();
        delete worker.runPthread;
      }
    }
  Module["__spawn_thread"] = __spawn_thread;
  
  function _pthread_getschedparam(thread, policy, schedparam) {
      if (!policy && !schedparam) return ERRNO_CODES.EINVAL;
  
      if (!thread) {
        err('pthread_getschedparam called with a null thread pointer!');
        return ERRNO_CODES.ESRCH;
      }
      var self = HEAP32[(((thread)+(24))>>2)];
      if (self !== thread) {
        err('pthread_getschedparam attempted on thread ' + thread + ', which does not point to a valid thread, or does not exist anymore!');
        return ERRNO_CODES.ESRCH;
      }
  
      var schedPolicy = Atomics.load(HEAPU32, (thread + 120 + 20 ) >> 2);
      var schedPrio = Atomics.load(HEAPU32, (thread + 120 + 24 ) >> 2);
  
      if (policy) HEAP32[((policy)>>2)]=schedPolicy;
      if (schedparam) HEAP32[((schedparam)>>2)]=schedPrio;
      return 0;
    }
  Module["_pthread_getschedparam"] = _pthread_getschedparam;
  
  function _pthread_self() {
      return __pthread_ptr|0;
    }
  Module["_pthread_self"] = _pthread_self;function _pthread_create(pthread_ptr, attr, start_routine, arg) {
      if (typeof SharedArrayBuffer === 'undefined') {
        err('Current environment does not support SharedArrayBuffer, pthreads are not available!');
        return 6;
      }
      if (!pthread_ptr) {
        err('pthread_create called with a null thread pointer!');
        return 28;
      }
  
      var transferList = []; // List of JS objects that will transfer ownership to the Worker hosting the thread
      var error = 0;
  
  
      // Synchronously proxy the thread creation to main thread if possible. If we need to transfer ownership of objects, then
      // proxy asynchronously via postMessage.
      if (ENVIRONMENT_IS_PTHREAD && (transferList.length === 0 || error)) {
        return _emscripten_sync_run_in_main_thread_4(687865856, pthread_ptr, attr, start_routine, arg);
      }
  
      // If on the main thread, and accessing Canvas/OffscreenCanvas failed, abort with the detected error.
      if (error) return error;
  
      var stackSize = 0;
      var stackBase = 0;
      var detached = 0; // Default thread attr is PTHREAD_CREATE_JOINABLE, i.e. start as not detached.
      var schedPolicy = 0; /*SCHED_OTHER*/
      var schedPrio = 0;
      if (attr) {
        stackSize = HEAP32[((attr)>>2)];
        // Musl has a convention that the stack size that is stored to the pthread attribute structure is always musl's #define DEFAULT_STACK_SIZE
        // smaller than the actual created stack size. That is, stored stack size of 0 would mean a stack of DEFAULT_STACK_SIZE in size. All musl
        // functions hide this impl detail, and offset the size transparently, so pthread_*() API user does not see this offset when operating with
        // the pthread API. When reading the structure directly on JS side however, we need to offset the size manually here.
        stackSize += 81920 /*DEFAULT_STACK_SIZE*/;
        stackBase = HEAP32[(((attr)+(8))>>2)];
        detached = HEAP32[(((attr)+(12))>>2)] !== 0/*PTHREAD_CREATE_JOINABLE*/;
        var inheritSched = HEAP32[(((attr)+(16))>>2)] === 0/*PTHREAD_INHERIT_SCHED*/;
        if (inheritSched) {
          var prevSchedPolicy = HEAP32[(((attr)+(20))>>2)];
          var prevSchedPrio = HEAP32[(((attr)+(24))>>2)];
          // If we are inheriting the scheduling properties from the parent thread, we need to identify the parent thread properly - this function call may
          // be getting proxied, in which case _pthread_self() will point to the thread performing the proxying, not the thread that initiated the call.
          var parentThreadPtr = PThread.currentProxiedOperationCallerThread ? PThread.currentProxiedOperationCallerThread : _pthread_self();
          _pthread_getschedparam(parentThreadPtr, attr + 20, attr + 24);
          schedPolicy = HEAP32[(((attr)+(20))>>2)];
          schedPrio = HEAP32[(((attr)+(24))>>2)];
          HEAP32[(((attr)+(20))>>2)]=prevSchedPolicy;
          HEAP32[(((attr)+(24))>>2)]=prevSchedPrio;
        } else {
          schedPolicy = HEAP32[(((attr)+(20))>>2)];
          schedPrio = HEAP32[(((attr)+(24))>>2)];
        }
      } else {
        // According to http://man7.org/linux/man-pages/man3/pthread_create.3.html, default stack size if not specified is 2 MB, so follow that convention.
        stackSize = 2097152;
      }
      var allocatedOwnStack = stackBase == 0; // If allocatedOwnStack == true, then the pthread impl maintains the stack allocation.
      if (allocatedOwnStack) {
        stackBase = _memalign(16, stackSize); // Allocate a stack if the user doesn't want to place the stack in a custom memory area.
      } else {
        // Musl stores the stack base address assuming stack grows downwards, so adjust it to Emscripten convention that the
        // stack grows upwards instead.
        stackBase -= stackSize;
        assert(stackBase > 0);
      }
  
      // Allocate thread block (pthread_t structure).
      var threadInfoStruct = _malloc(244);
      for (var i = 0; i < 244 >> 2; ++i) HEAPU32[(threadInfoStruct>>2) + i] = 0; // zero-initialize thread structure.
      HEAP32[((pthread_ptr)>>2)]=threadInfoStruct;
  
      // The pthread struct has a field that points to itself - this is used as a magic ID to detect whether the pthread_t
      // structure is 'alive'.
      HEAP32[(((threadInfoStruct)+(24))>>2)]=threadInfoStruct;
  
      // pthread struct robust_list head should point to itself.
      var headPtr = threadInfoStruct + 168;
      HEAP32[((headPtr)>>2)]=headPtr;
  
  
      var threadParams = {
        stackBase: stackBase,
        stackSize: stackSize,
        allocatedOwnStack: allocatedOwnStack,
        schedPolicy: schedPolicy,
        schedPrio: schedPrio,
        detached: detached,
        startRoutine: start_routine,
        pthread_ptr: threadInfoStruct,
        parent_pthread_ptr: _pthread_self(),
        arg: arg,
        transferList: transferList
      };
  
      if (ENVIRONMENT_IS_PTHREAD) {
        // The prepopulated pool of web workers that can host pthreads is stored in the main JS thread. Therefore if a
        // pthread is attempting to spawn a new thread, the thread creation must be deferred to the main JS thread.
        threadParams.cmd = 'spawnThread';
        postMessage(threadParams, transferList);
      } else {
        // We are the main thread, so we have the pthread warmup pool in this thread and can fire off JS thread creation
        // directly ourselves.
        __spawn_thread(threadParams);
      }
  
      return 0;
    }
  Module["_pthread_create"] = _pthread_create;



  function _setTempRet0($i) {
      setTempRet0(($i) | 0);
    }
  Module["_setTempRet0"] = _setTempRet0;

  
  
  function __isLeapYear(year) {
        return year%4 === 0 && (year%100 !== 0 || year%400 === 0);
    }
  Module["__isLeapYear"] = __isLeapYear;
  
  function __arraySum(array, index) {
      var sum = 0;
      for (var i = 0; i <= index; sum += array[i++]);
      return sum;
    }
  Module["__arraySum"] = __arraySum;
  
  
  var __MONTH_DAYS_LEAP=[31,29,31,30,31,30,31,31,30,31,30,31];
  Module["__MONTH_DAYS_LEAP"] = __MONTH_DAYS_LEAP;
  
  var __MONTH_DAYS_REGULAR=[31,28,31,30,31,30,31,31,30,31,30,31];
  Module["__MONTH_DAYS_REGULAR"] = __MONTH_DAYS_REGULAR;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()) {
          // we spill over to next month
          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 {
          // we stay in current month
          newDate.setDate(newDate.getDate()+days);
          return newDate;
        }
      }
  
      return newDate;
    }
  Module["__addDays"] = __addDays;function _strftime(s, maxsize, format, tm) {
      // size_t strftime(char *restrict s, size_t maxsize, const char *restrict format, const struct tm *restrict timeptr);
      // http://pubs.opengroup.org/onlinepubs/009695399/functions/strftime.html
  
      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);
  
      // expand format
      var EXPANSION_RULES_1 = {
        '%c': '%a %b %d %H:%M:%S %Y',     // Replaced by the locale's appropriate date and time representation - e.g., Mon Aug  3 14:02:01 2013
        '%D': '%m/%d/%y',                 // Equivalent to %m / %d / %y
        '%F': '%Y-%m-%d',                 // Equivalent to %Y - %m - %d
        '%h': '%b',                       // Equivalent to %b
        '%r': '%I:%M:%S %p',              // Replaced by the time in a.m. and p.m. notation
        '%R': '%H:%M',                    // Replaced by the time in 24-hour notation
        '%T': '%H:%M:%S',                 // Replaced by the time
        '%x': '%m/%d/%y',                 // Replaced by the locale's appropriate date representation
        '%X': '%H:%M:%S',                 // Replaced by the locale's appropriate time representation
        // Modified Conversion Specifiers
        '%Ec': '%c',                      // Replaced by the locale's alternative appropriate date and time representation.
        '%EC': '%C',                      // Replaced by the name of the base year (period) in the locale's alternative representation.
        '%Ex': '%m/%d/%y',                // Replaced by the locale's alternative date representation.
        '%EX': '%H:%M:%S',                // Replaced by the locale's alternative time representation.
        '%Ey': '%y',                      // Replaced by the offset from %EC (year only) in the locale's alternative representation.
        '%EY': '%Y',                      // Replaced by the full alternative year representation.
        '%Od': '%d',                      // Replaced by the day of the month, using the locale's alternative numeric symbols, filled as needed with leading zeros if there is any alternative symbol for zero; otherwise, with leading <space> characters.
        '%Oe': '%e',                      // Replaced by the day of the month, using the locale's alternative numeric symbols, filled as needed with leading <space> characters.
        '%OH': '%H',                      // Replaced by the hour (24-hour clock) using the locale's alternative numeric symbols.
        '%OI': '%I',                      // Replaced by the hour (12-hour clock) using the locale's alternative numeric symbols.
        '%Om': '%m',                      // Replaced by the month using the locale's alternative numeric symbols.
        '%OM': '%M',                      // Replaced by the minutes using the locale's alternative numeric symbols.
        '%OS': '%S',                      // Replaced by the seconds using the locale's alternative numeric symbols.
        '%Ou': '%u',                      // Replaced by the weekday as a number in the locale's alternative representation (Monday=1).
        '%OU': '%U',                      // Replaced by the week number of the year (Sunday as the first day of the week, rules corresponding to %U ) using the locale's alternative numeric symbols.
        '%OV': '%V',                      // Replaced by the week number of the year (Monday as the first day of the week, rules corresponding to %V ) using the locale's alternative numeric symbols.
        '%Ow': '%w',                      // Replaced by the number of the weekday (Sunday=0) using the locale's alternative numeric symbols.
        '%OW': '%W',                      // Replaced by the week number of the year (Monday as the first day of the week) using the locale's alternative numeric symbols.
        '%Oy': '%y',                      // Replaced by the year (offset from %C ) using the locale's alternative numeric symbols.
      };
      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: // Sunday
              return new Date(janFourth.getFullYear()-1, 11, 29);
            case 1: // Monday
              return janFourth;
            case 2: // Tuesday
              return new Date(janFourth.getFullYear(), 0, 3);
            case 3: // Wednesday
              return new Date(janFourth.getFullYear(), 0, 2);
            case 4: // Thursday
              return new Date(janFourth.getFullYear(), 0, 1);
            case 5: // Friday
              return new Date(janFourth.getFullYear()-1, 11, 31);
            case 6: // Saturday
              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) {
            // this date is after the start of the first week of this year
            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) {
          // %g, %G, and %V give values according to the ISO 8601:2000 standard week-based year.
          // In this system, weeks begin on a Monday and week 1 of the year is the week that includes
          // January 4th, which is also the week that includes the first Thursday of the year, and
          // is also the first week that contains at least four days in the year.
          // If the first Monday of January is the 2nd, 3rd, or 4th, the preceding days are part of
          // the last week of the preceding year; thus, for Saturday 2nd January 1999,
          // %G is replaced by 1998 and %V is replaced by 53. If December 29th, 30th,
          // or 31st is a Monday, it and any following days are part of week 1 of the following year.
          // Thus, for Tuesday 30th December 1997, %G is replaced by 1998 and %V is replaced by 01.
  
          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) {
          // Day of the year (001-366)
          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) {
          // Replaced by the week number of the year as a decimal number [00,53].
          // The first Sunday of January is the first day of week 1;
          // days in the new year before this are in week 0. [ tm_year, tm_wday, tm_yday]
          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);
  
          // is target date after the first Sunday?
          if (compareByDay(firstSunday, endDate) < 0) {
            // calculate difference in days between first Sunday and endDate
            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) {
          // Replaced by the week number of the year (Monday as the first day of the week)
          // as a decimal number [01,53]. If the week containing 1 January has four
          // or more days in the new year, then it is considered week 1.
          // Otherwise, it is the last week of the previous year, and the next week is week 1.
          // Both January 4th and the first Thursday of January are always in week 1. [ tm_year, tm_wday, tm_yday]
          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) {
            // if given date is before this years first week, then it belongs to the 53rd week of last year
            return '53';
          }
  
          if (compareByDay(firstWeekStartNextYear, endDate) <= 0) {
            // if given date is after next years first week, then it belongs to the 01th week of next year
            return '01';
          }
  
          // given date is in between CW 01..53 of this calendar year
          var daysDifference;
          if (firstWeekStartThisYear.getFullYear() < date.tm_year+1900) {
            // first CW of this year starts last year
            daysDifference = date.tm_yday+32-firstWeekStartThisYear.getDate()
          } else {
            // first CW of this year starts this year
            daysDifference = date.tm_yday+1-firstWeekStartThisYear.getDate();
          }
          return leadingNulls(Math.ceil(daysDifference/7), 2);
        },
        '%w': function(date) {
          return date.tm_wday;
        },
        '%W': function(date) {
          // Replaced by the week number of the year as a decimal number [00,53].
          // The first Monday of January is the first day of week 1;
          // days in the new year before this are in week 0. [ tm_year, tm_wday, tm_yday]
          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);
  
          // is target date after the first Monday?
          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) {
          // Replaced by the last two digits of the year as a decimal number [00,99]. [ tm_year]
          return (date.tm_year+1900).toString().substring(2);
        },
        '%Y': function(date) {
          // Replaced by the year as a decimal number (for example, 1997). [ tm_year]
          return date.tm_year+1900;
        },
        '%z': function(date) {
          // Replaced by the offset from UTC in the ISO 8601:2000 standard format ( +hhmm or -hhmm ).
          // For example, "-0430" means 4 hours 30 minutes behind UTC (west of Greenwich).
          var off = date.tm_gmtoff;
          var ahead = off >= 0;
          off = Math.abs(off) / 60;
          // convert from minutes into hhmm format (which means 60 minutes = 100 units)
          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.indexOf(rule) >= 0) {
          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;
    }
  Module["_strftime"] = _strftime;function _strftime_l(s, maxsize, format, tm) {
      return _strftime(s, maxsize, format, tm); // no locale support yet
    }
  Module["_strftime_l"] = _strftime_l;

  function _sysconf(name) {
  if (ENVIRONMENT_IS_PTHREAD) return _emscripten_proxy_to_main_thread_js(23, 1, name);
  
      // long sysconf(int name);
      // http://pubs.opengroup.org/onlinepubs/009695399/functions/sysconf.html
      switch(name) {
        case 30: return PAGE_SIZE;
        case 85:
          var maxHeapSize = 2*1024*1024*1024 - 65536;
          maxHeapSize = HEAPU8.length;
          return maxHeapSize / PAGE_SIZE;
        case 132:
        case 133:
        case 12:
        case 137:
        case 138:
        case 15:
        case 235:
        case 16:
        case 17:
        case 18:
        case 19:
        case 20:
        case 149:
        case 13:
        case 10:
        case 236:
        case 153:
        case 9:
        case 21:
        case 22:
        case 159:
        case 154:
        case 14:
        case 77:
        case 78:
        case 139:
        case 80:
        case 81:
        case 82:
        case 68:
        case 67:
        case 164:
        case 11:
        case 29:
        case 47:
        case 48:
        case 95:
        case 52:
        case 51:
        case 46:
          return 200809;
        case 79:
          return 0;
        case 27:
        case 246:
        case 127:
        case 128:
        case 23:
        case 24:
        case 160:
        case 161:
        case 181:
        case 182:
        case 242:
        case 183:
        case 184:
        case 243:
        case 244:
        case 245:
        case 165:
        case 178:
        case 179:
        case 49:
        case 50:
        case 168:
        case 169:
        case 175:
        case 170:
        case 171:
        case 172:
        case 97:
        case 76:
        case 32:
        case 173:
        case 35:
          return -1;
        case 176:
        case 177:
        case 7:
        case 155:
        case 8:
        case 157:
        case 125:
        case 126:
        case 92:
        case 93:
        case 129:
        case 130:
        case 131:
        case 94:
        case 91:
          return 1;
        case 74:
        case 60:
        case 69:
        case 70:
        case 4:
          return 1024;
        case 31:
        case 42:
        case 72:
          return 32;
        case 87:
        case 26:
        case 33:
          return 2147483647;
        case 34:
        case 1:
          return 47839;
        case 38:
        case 36:
          return 99;
        case 43:
        case 37:
          return 2048;
        case 0: return 2097152;
        case 3: return 65536;
        case 28: return 32768;
        case 44: return 32767;
        case 75: return 16384;
        case 39: return 1000;
        case 89: return 700;
        case 71: return 256;
        case 40: return 255;
        case 2: return 100;
        case 180: return 64;
        case 25: return 20;
        case 5: return 16;
        case 6: return 6;
        case 73: return 4;
        case 84: {
          if (typeof navigator === 'object') return navigator['hardwareConcurrency'] || 1;
          return 1;
        }
      }
      ___setErrNo(28);
      return -1;
    }
  
  Module["_sysconf"] = _sysconf;

  function _system(command) {
      // int system(const char *command);
      // http://pubs.opengroup.org/onlinepubs/000095399/functions/system.html
      // Can't call external programs.
      ___setErrNo(6);
      return -1;
    }
  Module["_system"] = _system;


  function _time(ptr) {
      var ret = (Date.now()/1000)|0;
      if (ptr) {
        HEAP32[((ptr)>>2)]=ret;
      }
      return ret;
    }
  Module["_time"] = _time;

  function _times(buffer) {
      // clock_t times(struct tms *buffer);
      // http://pubs.opengroup.org/onlinepubs/009695399/functions/times.html
      // NOTE: This is fake, since we can't calculate real CPU time usage in JS.
      if (buffer !== 0) {
        _memset(buffer, 0, 16);
      }
      return 0;
    }
  Module["_times"] = _times;
if (!ENVIRONMENT_IS_PTHREAD) PThread.initMainThreadBlock(); else PThread.initWorker();;
if (ENVIRONMENT_IS_NODE) {
    _emscripten_get_now = function _emscripten_get_now_actual() {
      var t = process['hrtime']();
      return t[0] * 1e3 + t[1] / 1e6;
    };
  } else if (ENVIRONMENT_IS_PTHREAD) {
    _emscripten_get_now = function() { return performance['now']() - __performance_now_clock_drift; };
  } else if (typeof dateNow !== 'undefined') {
    _emscripten_get_now = dateNow;
  } else if (typeof performance === 'object' && performance && typeof performance['now'] === 'function') {
    _emscripten_get_now = function() { return performance['now'](); };
  } else {
    _emscripten_get_now = Date.now;
  };
FS.staticInit();;
if (ENVIRONMENT_HAS_NODE) { var fs = require("fs"); var NODEJS_PATH = require("path"); NODEFS.staticInit(); };
var GLctx; GL.init();

 // proxiedFunctionTable specifies the list of functions that can be called either synchronously or asynchronously from other threads in postMessage()d or internally queued events. This way a pthread in a Worker can synchronously access e.g. the DOM on the main thread.

var proxiedFunctionTable = [null,_atexit,___syscall10,___syscall12,___syscall183,___syscall195,___syscall196,___syscall220,___syscall221,___syscall3,___syscall39,___syscall4,___syscall40,___syscall5,___syscall54,___syscall85,___syscall91,_emscripten_set_canvas_element_size_main_thread,_fd_close,_fd_read,_fd_seek,_fd_write,_tzset,_sysconf];

var ASSERTIONS = false;

// Copyright 2017 The Emscripten Authors.  All rights reserved.
// Emscripten is available under two separate licenses, the MIT license and the
// University of Illinois/NCSA Open Source License.  Both these licenses can be
// found in the LICENSE file.

/** @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;
}

function intArrayToString(array) {
  var ret = [];
  for (var i = 0; i < array.length; i++) {
    var chr = array[i];
    if (chr > 0xFF) {
      if (ASSERTIONS) {
        assert(false, 'Character code ' + chr + ' (' + String.fromCharCode(chr) + ')  at offset ' + i + ' not in 0x00-0xFF.');
      }
      chr &= 0xFF;
    }
    ret.push(String.fromCharCode(chr));
  }
  return ret.join('');
}


// ASM_LIBRARY EXTERN PRIMITIVES: Int8Array,Int32Array

var asmGlobalArg = {};
var asmLibraryArg = { "_ZN12CPdfRenderer10SaveToFileERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE": __ZN12CPdfRenderer10SaveToFileERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE, "_ZN12CPdfRenderer11SetPasswordERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE": __ZN12CPdfRenderer11SetPasswordERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE, "_ZN12CPdfRenderer13SetDocumentIDERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE": __ZN12CPdfRenderer13SetDocumentIDERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE, "_ZN12CPdfRenderer13SetTempFolderERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE": __ZN12CPdfRenderer13SetTempFolderERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE, "_ZN12CPdfRenderer14SetThemesPlaceERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE": __ZN12CPdfRenderer14SetThemesPlaceERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEE, "_ZN12CPdfRenderer15OnlineWordToPdfERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEES8_": __ZN12CPdfRenderer15OnlineWordToPdfERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEES8_, "_ZN12CPdfRenderer25OnlineWordToPdfFromBinaryERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEES8_": __ZN12CPdfRenderer25OnlineWordToPdfFromBinaryERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEES8_, "_ZN12CPdfRendererC1EPN7NSFonts17IApplicationFontsEb": __ZN12CPdfRendererC1EPN7NSFonts17IApplicationFontsEb, "_ZN12CPdfRendererD1Ev": __ZN12CPdfRendererD1Ev, "_ZN14NSDoctRenderer13CDoctrenderer18GetImagesInChangesEv": __ZN14NSDoctRenderer13CDoctrenderer18GetImagesInChangesEv, "_ZN14NSDoctRenderer13CDoctrenderer7ExecuteERKNSt3__212basic_stringIwNS1_11char_traitsIwEENS1_9allocatorIwEEEERS7_": __ZN14NSDoctRenderer13CDoctrenderer7ExecuteERKNSt3__212basic_stringIwNS1_11char_traitsIwEENS1_9allocatorIwEEEERS7_, "_ZN14NSDoctRenderer13CDoctrendererC1ERKNSt3__212basic_stringIwNS1_11char_traitsIwEENS1_9allocatorIwEEEE": __ZN14NSDoctRenderer13CDoctrendererC1ERKNSt3__212basic_stringIwNS1_11char_traitsIwEENS1_9allocatorIwEEEE, "_ZN14NSDoctRenderer13CDoctrendererD1Ev": __ZN14NSDoctRenderer13CDoctrendererD1Ev, "_ZN14NSHtmlRenderer17CASCHTMLRenderer316CreateOfficeFileENSt3__212basic_stringIwNS1_11char_traitsIwEENS1_9allocatorIwEEEERKS7_": __ZN14NSHtmlRenderer17CASCHTMLRenderer316CreateOfficeFileENSt3__212basic_stringIwNS1_11char_traitsIwEENS1_9allocatorIwEEEERKS7_, "_ZN14NSHtmlRenderer17CASCHTMLRenderer39CloseFileEb": __ZN14NSHtmlRenderer17CASCHTMLRenderer39CloseFileEb, "_ZN14NSHtmlRenderer17CASCHTMLRenderer3C1Ev": __ZN14NSHtmlRenderer17CASCHTMLRenderer3C1Ev, "_ZN14NSHtmlRenderer17CASCHTMLRenderer3D1Ev": __ZN14NSHtmlRenderer17CASCHTMLRenderer3D1Ev, "_ZN18NSUnicodeConverter17CUnicodeConverter11fromUnicodeEPKwRKjPKc": __ZN18NSUnicodeConverter17CUnicodeConverter11fromUnicodeEPKwRKjPKc, "_ZN18NSUnicodeConverter17CUnicodeConverter14toUnicodeExactEPKcRKjS2_": __ZN18NSUnicodeConverter17CUnicodeConverter14toUnicodeExactEPKcRKjS2_, "_ZN18NSUnicodeConverter17CUnicodeConverter14toUnicodeExactEPKcRKji": __ZN18NSUnicodeConverter17CUnicodeConverter14toUnicodeExactEPKcRKji, "_ZN18NSUnicodeConverter17CUnicodeConverter9toUnicodeEPKcRKjS2_": __ZN18NSUnicodeConverter17CUnicodeConverter9toUnicodeEPKcRKjS2_, "_ZN18NSUnicodeConverter17CUnicodeConverter9toUnicodeERKNSt3__212basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEEPKc": __ZN18NSUnicodeConverter17CUnicodeConverter9toUnicodeERKNSt3__212basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEEPKc, "_ZN18NSUnicodeConverter17CUnicodeConverter9toUnicodeERKNSt3__212basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEEi": __ZN18NSUnicodeConverter17CUnicodeConverter9toUnicodeERKNSt3__212basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEEi, "_ZN18NSUnicodeConverter17CUnicodeConverterC1Ev": __ZN18NSUnicodeConverter17CUnicodeConverterC1Ev, "_ZN18NSUnicodeConverter17CUnicodeConverterD1Ev": __ZN18NSUnicodeConverter17CUnicodeConverterD1Ev, "_ZN23CFileDownloader_privateC1ENSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEEb": __ZN23CFileDownloader_privateC1ENSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEEb, "_ZN8CXpsFileC1EPN7NSFonts17IApplicationFontsE": __ZN8CXpsFileC1EPN7NSFonts17IApplicationFontsE, "_ZN9CDjVuFileC1EPN7NSFonts17IApplicationFontsE": __ZN9CDjVuFileC1EPN7NSFonts17IApplicationFontsE, "_ZN9CHtmlFile10ConvertMhtERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEES8_S8_": __ZN9CHtmlFile10ConvertMhtERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEES8_S8_, "_ZN9CHtmlFile11ConvertEpubERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEERS6_S8_S8_": __ZN9CHtmlFile11ConvertEpubERKNSt3__212basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEERS6_S8_S8_, "_ZN9CHtmlFile7ConvertERKNSt3__26vectorINS0_12basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEENS5_IS7_EEEERKS7_SD_": __ZN9CHtmlFile7ConvertERKNSt3__26vectorINS0_12basic_stringIwNS0_11char_traitsIwEENS0_9allocatorIwEEEENS5_IS7_EEEERKS7_SD_, "_ZN9CHtmlFileC1Ev": __ZN9CHtmlFileC1Ev, "_ZN9CHtmlFileD1Ev": __ZN9CHtmlFileD1Ev, "_ZN9PdfReader10CPdfReader8GetErrorEv": __ZN9PdfReader10CPdfReader8GetErrorEv, "_ZN9PdfReader10CPdfReaderC1EPN7NSFonts17IApplicationFontsE": __ZN9PdfReader10CPdfReaderC1EPN7NSFonts17IApplicationFontsE, "__assert_fail": ___assert_fail, "__call_main": ___call_main, "__clock_gettime": ___clock_gettime, "__cxa_allocate_exception": ___cxa_allocate_exception, "__cxa_atexit": ___cxa_atexit, "__cxa_rethrow": ___cxa_rethrow, "__cxa_throw": ___cxa_throw, "__lock": ___lock, "__map_file": ___map_file, "__syscall10": ___syscall10, "__syscall12": ___syscall12, "__syscall183": ___syscall183, "__syscall195": ___syscall195, "__syscall196": ___syscall196, "__syscall220": ___syscall220, "__syscall221": ___syscall221, "__syscall3": ___syscall3, "__syscall39": ___syscall39, "__syscall4": ___syscall4, "__syscall40": ___syscall40, "__syscall5": ___syscall5, "__syscall54": ___syscall54, "__syscall85": ___syscall85, "__syscall91": ___syscall91, "__unlock": ___unlock, "abort": _abort, "atexit": _atexit, "emscripten_asm_const_iii": _emscripten_asm_const_iii, "emscripten_check_blocking_allowed": _emscripten_check_blocking_allowed, "emscripten_conditional_set_current_thread_status": _emscripten_conditional_set_current_thread_status, "emscripten_futex_wait": _emscripten_futex_wait, "emscripten_futex_wake": _emscripten_futex_wake, "emscripten_get_now": _emscripten_get_now, "emscripten_get_sbrk_ptr": _emscripten_get_sbrk_ptr, "emscripten_has_threading_support": _emscripten_has_threading_support, "emscripten_is_main_browser_thread": _emscripten_is_main_browser_thread, "emscripten_is_main_runtime_thread": _emscripten_is_main_runtime_thread, "emscripten_longjmp": _emscripten_longjmp, "emscripten_memcpy_big": _emscripten_memcpy_big, "emscripten_receive_on_main_thread_js": _emscripten_receive_on_main_thread_js, "emscripten_resize_heap": _emscripten_resize_heap, "emscripten_set_canvas_element_size": _emscripten_set_canvas_element_size, "emscripten_set_current_thread_status": _emscripten_set_current_thread_status, "emscripten_set_thread_name": _emscripten_set_thread_name, "emscripten_syscall": _emscripten_syscall, "emscripten_webgl_create_context": _emscripten_webgl_create_context, "environ_get": _environ_get, "environ_sizes_get": _environ_sizes_get, "exit": _exit, "fd_close": _fd_close, "fd_read": _fd_read, "fd_seek": _fd_seek, "fd_write": _fd_write, "getTempRet0": _getTempRet0, "gettimeofday": _gettimeofday, "gmtime": _gmtime, "initPthreadsJS": initPthreadsJS, "invoke_ii": invoke_ii, "invoke_iii": invoke_iii, "invoke_iiii": invoke_iiii, "invoke_iiiii": invoke_iiiii, "invoke_iiiiii": invoke_iiiiii, "invoke_v": invoke_v, "invoke_vi": invoke_vi, "invoke_vii": invoke_vii, "invoke_viii": invoke_viii, "invoke_viiii": invoke_viiii, "invoke_viiiii": invoke_viiiii, "invoke_viiiiii": invoke_viiiiii, "invoke_viiiiiiiii": invoke_viiiiiiiii, "memory": wasmMemory, "mktime": _mktime, "pthread_cleanup_pop": _pthread_cleanup_pop, "pthread_cleanup_push": _pthread_cleanup_push, "pthread_create": _pthread_create, "pthread_self": _pthread_self, "saveSetjmp": _saveSetjmp, "setTempRet0": _setTempRet0, "strftime_l": _strftime_l, "sysconf": _sysconf, "system": _system, "table": wasmTable, "testSetjmp": _testSetjmp, "time": _time, "times": _times };
var asm = createWasm();
Module["asm"] = asm;
var ___wasm_call_ctors = Module["___wasm_call_ctors"] = function() {
  return Module["asm"]["__wasm_call_ctors"].apply(null, arguments)
};

var _runX2T = Module["_runX2T"] = function() {
  return Module["asm"]["runX2T"].apply(null, arguments)
};

var _malloc = Module["_malloc"] = function() {
  return Module["asm"]["malloc"].apply(null, arguments)
};

var _free = Module["_free"] = function() {
  return Module["asm"]["free"].apply(null, arguments)
};

var _main = Module["_main"] = function() {
  return Module["asm"]["main"].apply(null, arguments)
};

var _realloc = Module["_realloc"] = function() {
  return Module["asm"]["realloc"].apply(null, arguments)
};

var __ZSt18uncaught_exceptionv = Module["__ZSt18uncaught_exceptionv"] = function() {
  return Module["asm"]["_ZSt18uncaught_exceptionv"].apply(null, arguments)
};

var ___errno_location = Module["___errno_location"] = function() {
  return Module["asm"]["__errno_location"].apply(null, arguments)
};

var _ntohs = Module["_ntohs"] = function() {
  return Module["asm"]["ntohs"].apply(null, arguments)
};

var _htonl = Module["_htonl"] = function() {
  return Module["asm"]["htonl"].apply(null, arguments)
};

var _htons = Module["_htons"] = function() {
  return Module["asm"]["htons"].apply(null, arguments)
};

var _emscripten_get_global_libc = Module["_emscripten_get_global_libc"] = function() {
  return Module["asm"]["emscripten_get_global_libc"].apply(null, arguments)
};

var ___em_js__initPthreadsJS = Module["___em_js__initPthreadsJS"] = function() {
  return Module["asm"]["__em_js__initPthreadsJS"].apply(null, arguments)
};

var ___emscripten_pthread_data_constructor = Module["___emscripten_pthread_data_constructor"] = function() {
  return Module["asm"]["__emscripten_pthread_data_constructor"].apply(null, arguments)
};

var __get_tzname = Module["__get_tzname"] = function() {
  return Module["asm"]["_get_tzname"].apply(null, arguments)
};

var __get_daylight = Module["__get_daylight"] = function() {
  return Module["asm"]["_get_daylight"].apply(null, arguments)
};

var __get_timezone = Module["__get_timezone"] = function() {
  return Module["asm"]["_get_timezone"].apply(null, arguments)
};

var _setThrew = Module["_setThrew"] = function() {
  return Module["asm"]["setThrew"].apply(null, arguments)
};

var _memalign = Module["_memalign"] = function() {
  return Module["asm"]["memalign"].apply(null, arguments)
};

var _emscripten_main_browser_thread_id = Module["_emscripten_main_browser_thread_id"] = function() {
  return Module["asm"]["emscripten_main_browser_thread_id"].apply(null, arguments)
};

var ___pthread_tsd_run_dtors = Module["___pthread_tsd_run_dtors"] = function() {
  return Module["asm"]["__pthread_tsd_run_dtors"].apply(null, arguments)
};

var _emscripten_main_thread_process_queued_calls = Module["_emscripten_main_thread_process_queued_calls"] = function() {
  return Module["asm"]["emscripten_main_thread_process_queued_calls"].apply(null, arguments)
};

var _emscripten_current_thread_process_queued_calls = Module["_emscripten_current_thread_process_queued_calls"] = function() {
  return Module["asm"]["emscripten_current_thread_process_queued_calls"].apply(null, arguments)
};

var _usleep = Module["_usleep"] = function() {
  return Module["asm"]["usleep"].apply(null, arguments)
};

var _emscripten_register_main_browser_thread_id = Module["_emscripten_register_main_browser_thread_id"] = function() {
  return Module["asm"]["emscripten_register_main_browser_thread_id"].apply(null, arguments)
};

var _emscripten_async_run_in_main_thread = Module["_emscripten_async_run_in_main_thread"] = function() {
  return Module["asm"]["emscripten_async_run_in_main_thread"].apply(null, arguments)
};

var _emscripten_sync_run_in_main_thread = Module["_emscripten_sync_run_in_main_thread"] = function() {
  return Module["asm"]["emscripten_sync_run_in_main_thread"].apply(null, arguments)
};

var _emscripten_sync_run_in_main_thread_0 = Module["_emscripten_sync_run_in_main_thread_0"] = function() {
  return Module["asm"]["emscripten_sync_run_in_main_thread_0"].apply(null, arguments)
};

var _emscripten_sync_run_in_main_thread_1 = Module["_emscripten_sync_run_in_main_thread_1"] = function() {
  return Module["asm"]["emscripten_sync_run_in_main_thread_1"].apply(null, arguments)
};

var _emscripten_sync_run_in_main_thread_2 = Module["_emscripten_sync_run_in_main_thread_2"] = function() {
  return Module["asm"]["emscripten_sync_run_in_main_thread_2"].apply(null, arguments)
};

var _emscripten_sync_run_in_main_thread_xprintf_varargs = Module["_emscripten_sync_run_in_main_thread_xprintf_varargs"] = function() {
  return Module["asm"]["emscripten_sync_run_in_main_thread_xprintf_varargs"].apply(null, arguments)
};

var _emscripten_sync_run_in_main_thread_3 = Module["_emscripten_sync_run_in_main_thread_3"] = function() {
  return Module["asm"]["emscripten_sync_run_in_main_thread_3"].apply(null, arguments)
};

var _emscripten_sync_run_in_main_thread_4 = Module["_emscripten_sync_run_in_main_thread_4"] = function() {
  return Module["asm"]["emscripten_sync_run_in_main_thread_4"].apply(null, arguments)
};

var _emscripten_sync_run_in_main_thread_5 = Module["_emscripten_sync_run_in_main_thread_5"] = function() {
  return Module["asm"]["emscripten_sync_run_in_main_thread_5"].apply(null, arguments)
};

var _emscripten_sync_run_in_main_thread_6 = Module["_emscripten_sync_run_in_main_thread_6"] = function() {
  return Module["asm"]["emscripten_sync_run_in_main_thread_6"].apply(null, arguments)
};

var _emscripten_sync_run_in_main_thread_7 = Module["_emscripten_sync_run_in_main_thread_7"] = function() {
  return Module["asm"]["emscripten_sync_run_in_main_thread_7"].apply(null, arguments)
};

var _emscripten_run_in_main_runtime_thread_js = Module["_emscripten_run_in_main_runtime_thread_js"] = function() {
  return Module["asm"]["emscripten_run_in_main_runtime_thread_js"].apply(null, arguments)
};

var _emscripten_async_queue_on_thread_ = Module["_emscripten_async_queue_on_thread_"] = function() {
  return Module["asm"]["emscripten_async_queue_on_thread_"].apply(null, arguments)
};

var _proxy_main = Module["_proxy_main"] = function() {
  return Module["asm"]["proxy_main"].apply(null, arguments)
};

var _emscripten_tls_init = Module["_emscripten_tls_init"] = function() {
  return Module["asm"]["emscripten_tls_init"].apply(null, arguments)
};

var dynCall_ii = Module["dynCall_ii"] = function() {
  return Module["asm"]["dynCall_ii"].apply(null, arguments)
};

var dynCall_iii = Module["dynCall_iii"] = function() {
  return Module["asm"]["dynCall_iii"].apply(null, arguments)
};

var dynCall_iiii = Module["dynCall_iiii"] = function() {
  return Module["asm"]["dynCall_iiii"].apply(null, arguments)
};

var dynCall_iiiii = Module["dynCall_iiiii"] = function() {
  return Module["asm"]["dynCall_iiiii"].apply(null, arguments)
};

var dynCall_iiiiii = Module["dynCall_iiiiii"] = function() {
  return Module["asm"]["dynCall_iiiiii"].apply(null, arguments)
};

var dynCall_v = Module["dynCall_v"] = function() {
  return Module["asm"]["dynCall_v"].apply(null, arguments)
};

var dynCall_vi = Module["dynCall_vi"] = function() {
  return Module["asm"]["dynCall_vi"].apply(null, arguments)
};

var dynCall_vii = Module["dynCall_vii"] = function() {
  return Module["asm"]["dynCall_vii"].apply(null, arguments)
};

var dynCall_viii = Module["dynCall_viii"] = function() {
  return Module["asm"]["dynCall_viii"].apply(null, arguments)
};

var dynCall_viiii = Module["dynCall_viiii"] = function() {
  return Module["asm"]["dynCall_viiii"].apply(null, arguments)
};

var dynCall_viiiii = Module["dynCall_viiiii"] = function() {
  return Module["asm"]["dynCall_viiiii"].apply(null, arguments)
};

var dynCall_viiiiii = Module["dynCall_viiiiii"] = function() {
  return Module["asm"]["dynCall_viiiiii"].apply(null, arguments)
};

var dynCall_viiiiiiiii = Module["dynCall_viiiiiiiii"] = function() {
  return Module["asm"]["dynCall_viiiiiiiii"].apply(null, arguments)
};

var stackSave = Module["stackSave"] = function() {
  return Module["asm"]["stackSave"].apply(null, arguments)
};

var stackAlloc = Module["stackAlloc"] = function() {
  return Module["asm"]["stackAlloc"].apply(null, arguments)
};

var stackRestore = Module["stackRestore"] = function() {
  return Module["asm"]["stackRestore"].apply(null, arguments)
};

var __growWasmMemory = Module["__growWasmMemory"] = function() {
  return Module["asm"]["__growWasmMemory"].apply(null, arguments)
};

var dynCall_viijii = Module["dynCall_viijii"] = function() {
  return Module["asm"]["dynCall_viijii"].apply(null, arguments)
};

var dynCall_dii = Module["dynCall_dii"] = function() {
  return Module["asm"]["dynCall_dii"].apply(null, arguments)
};

var dynCall_did = Module["dynCall_did"] = function() {
  return Module["asm"]["dynCall_did"].apply(null, arguments)
};

var dynCall_di = Module["dynCall_di"] = function() {
  return Module["asm"]["dynCall_di"].apply(null, arguments)
};

var dynCall_ji = Module["dynCall_ji"] = function() {
  return Module["asm"]["dynCall_ji"].apply(null, arguments)
};

var dynCall_vij = Module["dynCall_vij"] = function() {
  return Module["asm"]["dynCall_vij"].apply(null, arguments)
};

var dynCall_jii = Module["dynCall_jii"] = function() {
  return Module["asm"]["dynCall_jii"].apply(null, arguments)
};

var dynCall_iiiiiii = Module["dynCall_iiiiiii"] = function() {
  return Module["asm"]["dynCall_iiiiiii"].apply(null, arguments)
};

var dynCall_iiiiiiii = Module["dynCall_iiiiiiii"] = function() {
  return Module["asm"]["dynCall_iiiiiiii"].apply(null, arguments)
};

var dynCall_iiiiiiiii = Module["dynCall_iiiiiiiii"] = function() {
  return Module["asm"]["dynCall_iiiiiiiii"].apply(null, arguments)
};

var dynCall_iidddddi = Module["dynCall_iidddddi"] = function() {
  return Module["asm"]["dynCall_iidddddi"].apply(null, arguments)
};

var dynCall_viiiddii = Module["dynCall_viiiddii"] = function() {
  return Module["asm"]["dynCall_viiiddii"].apply(null, arguments)
};

var dynCall_viij = Module["dynCall_viij"] = function() {
  return Module["asm"]["dynCall_viij"].apply(null, arguments)
};

var dynCall_viji = Module["dynCall_viji"] = function() {
  return Module["asm"]["dynCall_viji"].apply(null, arguments)
};

var dynCall_jij = Module["dynCall_jij"] = function() {
  return Module["asm"]["dynCall_jij"].apply(null, arguments)
};

var dynCall_iiiijii = Module["dynCall_iiiijii"] = function() {
  return Module["asm"]["dynCall_iiiijii"].apply(null, arguments)
};

var dynCall_viiij = Module["dynCall_viiij"] = function() {
  return Module["asm"]["dynCall_viiij"].apply(null, arguments)
};

var dynCall_viiiiiiiiii = Module["dynCall_viiiiiiiiii"] = function() {
  return Module["asm"]["dynCall_viiiiiiiiii"].apply(null, arguments)
};

var dynCall_i = Module["dynCall_i"] = function() {
  return Module["asm"]["dynCall_i"].apply(null, arguments)
};

var dynCall_viiiiiii = Module["dynCall_viiiiiii"] = function() {
  return Module["asm"]["dynCall_viiiiiii"].apply(null, arguments)
};

var dynCall_viiiiiiiiiiii = Module["dynCall_viiiiiiiiiiii"] = function() {
  return Module["asm"]["dynCall_viiiiiiiiiiii"].apply(null, arguments)
};

var dynCall_iidd = Module["dynCall_iidd"] = function() {
  return Module["asm"]["dynCall_iidd"].apply(null, arguments)
};

var dynCall_iidddddd = Module["dynCall_iidddddd"] = function() {
  return Module["asm"]["dynCall_iidddddd"].apply(null, arguments)
};

var dynCall_vidd = Module["dynCall_vidd"] = function() {
  return Module["asm"]["dynCall_vidd"].apply(null, arguments)
};

var dynCall_vidddd = Module["dynCall_vidddd"] = function() {
  return Module["asm"]["dynCall_vidddd"].apply(null, arguments)
};

var dynCall_viidddd = Module["dynCall_viidddd"] = function() {
  return Module["asm"]["dynCall_viidddd"].apply(null, arguments)
};

var dynCall_viidddddd = Module["dynCall_viidddddd"] = function() {
  return Module["asm"]["dynCall_viidddddd"].apply(null, arguments)
};

var dynCall_iiiiiddd = Module["dynCall_iiiiiddd"] = function() {
  return Module["asm"]["dynCall_iiiiiddd"].apply(null, arguments)
};

var dynCall_viiiiddd = Module["dynCall_viiiiddd"] = function() {
  return Module["asm"]["dynCall_viiiiddd"].apply(null, arguments)
};

var dynCall_diiii = Module["dynCall_diiii"] = function() {
  return Module["asm"]["dynCall_diiii"].apply(null, arguments)
};

var dynCall_iiidddd = Module["dynCall_iiidddd"] = function() {
  return Module["asm"]["dynCall_iiidddd"].apply(null, arguments)
};

var dynCall_viddddiii = Module["dynCall_viddddiii"] = function() {
  return Module["asm"]["dynCall_viddddiii"].apply(null, arguments)
};

var dynCall_viiiddi = Module["dynCall_viiiddi"] = function() {
  return Module["asm"]["dynCall_viiiddi"].apply(null, arguments)
};

var dynCall_vidddddd = Module["dynCall_vidddddd"] = function() {
  return Module["asm"]["dynCall_vidddddd"].apply(null, arguments)
};

var dynCall_iiiiiiiiii = Module["dynCall_iiiiiiiiii"] = function() {
  return Module["asm"]["dynCall_iiiiiiiiii"].apply(null, arguments)
};

var dynCall_jiji = Module["dynCall_jiji"] = function() {
  return Module["asm"]["dynCall_jiji"].apply(null, arguments)
};

var dynCall_iidiiii = Module["dynCall_iidiiii"] = function() {
  return Module["asm"]["dynCall_iidiiii"].apply(null, arguments)
};

var dynCall_iiiiij = Module["dynCall_iiiiij"] = function() {
  return Module["asm"]["dynCall_iiiiij"].apply(null, arguments)
};

var dynCall_iiiiid = Module["dynCall_iiiiid"] = function() {
  return Module["asm"]["dynCall_iiiiid"].apply(null, arguments)
};

var dynCall_iiiiijj = Module["dynCall_iiiiijj"] = function() {
  return Module["asm"]["dynCall_iiiiijj"].apply(null, arguments)
};

var dynCall_iiiiiijj = Module["dynCall_iiiiiijj"] = function() {
  return Module["asm"]["dynCall_iiiiiijj"].apply(null, arguments)
};


function invoke_viiii(index,a1,a2,a3,a4) {
  var sp = stackSave();
  try {
    dynCall_viiii(index,a1,a2,a3,a4);
  } 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 dynCall_iii(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 dynCall_iiiii(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 dynCall_iiii(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 {
    dynCall_vi(index,a1);
  } 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 {
    dynCall_vii(index,a1,a2);
  } 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 dynCall_ii(index,a1);
  } 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 {
    dynCall_viii(index,a1,a2,a3);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0 && e !== 'longjmp') throw e;
    _setThrew(1, 0);
  }
}

function invoke_v(index) {
  var sp = stackSave();
  try {
    dynCall_v(index);
  } catch(e) {
    stackRestore(sp);
    if (e !== e+0 && e !== 'longjmp') throw e;
    _setThrew(1, 0);
  }
}

function invoke_iiiiii(index,a1,a2,a3,a4,a5) {
  var sp = stackSave();
  try {
    return dynCall_iiiiii(index,a1,a2,a3,a4,a5);
  } 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 {
    dynCall_viiiii(index,a1,a2,a3,a4,a5);
  } 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 {
    dynCall_viiiiii(index,a1,a2,a3,a4,a5,a6);
  } 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 {
    dynCall_viiiiiiiii(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);
  }
}



// === Auto-generated postamble setup entry stuff ===

Module['asm'] = asm;



Module["ccall"] = ccall;


























































Module["establishStackSpace"] = establishStackSpace;








Module["PThread"] = PThread;
Module["ExitStatus"] = ExitStatus;
Module["tempDoublePtr"] = tempDoublePtr;
Module["wasmMemory"] = wasmMemory;
Module["_pthread_self"] = _pthread_self;
Module["ExitStatus"] = ExitStatus;
Module["tempDoublePtr"] = tempDoublePtr;
Module["dynCall_ii"] = dynCall_ii;







var calledRun;


/**
 * @constructor
 * @this {ExitStatus}
 */
function ExitStatus(status) {
  this.name = "ExitStatus";
  this.message = "Program terminated with exit(" + status + ")";
  this.status = status;
}

var calledMain = false;


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 callMain(args) {

  var entryFunction = Module['_main'];


  args = args || [];

  var argc = args.length+1;
  var argv = stackAlloc((argc + 1) * 4);
  HEAP32[argv >> 2] = allocateUTF8OnStack(thisProgram);
  for (var i = 1; i < argc; i++) {
    HEAP32[(argv >> 2) + i] = allocateUTF8OnStack(args[i - 1]);
  }
  HEAP32[(argv >> 2) + argc] = 0;


  try {


    var ret = entryFunction(argc, argv);


    // if we're not running an evented main loop, it's time to exit
      exit(ret, /* implicit = */ true);
  }
  catch(e) {
    if (e instanceof ExitStatus) {
      // exit() throws this once it's done to make sure execution
      // has been stopped completely
      return;
    } else if (e == 'SimulateInfiniteLoop') {
      // running an evented main loop, don't immediately exit
      noExitRuntime = true;
      return;
    } else {
      var toLog = e;
      if (e && typeof e === 'object' && e.stack) {
        toLog = [e, e.stack];
      }
      err('exception thrown: ' + toLog);
      quit_(1, e);
    }
  } finally {
    calledMain = true;
  }
}




/** @type {function(Array=)} */
function run(args) {
  args = args || arguments_;

  if (runDependencies > 0) {
    return;
  }


  preRun();

  if (runDependencies > 0) return; // a preRun added a dependency, run will be called later

  function doRun() {
    // 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;

    if (ABORT) return;

    initRuntime();

    preMain();

    if (Module['onRuntimeInitialized']) Module['onRuntimeInitialized']();

    if (shouldRunNow) callMain(args);

    postRun();
  }

  if (Module['setStatus']) {
    Module['setStatus']('Running...');
    setTimeout(function() {
      setTimeout(function() {
        Module['setStatus']('');
      }, 1);
      doRun();
    }, 1);
  } else
  {
    doRun();
  }
}
Module['run'] = run;


function exit(status, implicit) {

  // if this is just main exit-ing implicitly, and the status is 0, then we
  // don't need to do anything here and can just leave. if the status is
  // non-zero, though, then we need to report it.
  // (we may have warned about this earlier, if a situation justifies doing so)
  if (implicit && noExitRuntime && status === 0) {
    return;
  }

  if (noExitRuntime) {
  } else {
    PThread.terminateAllThreads();

    ABORT = true;
    EXITSTATUS = status;

    exitRuntime();

    if (Module['onExit']) Module['onExit'](status);
  }

  quit_(status, new ExitStatus(status));
}

if (Module['preInit']) {
  if (typeof Module['preInit'] == 'function') Module['preInit'] = [Module['preInit']];
  while (Module['preInit'].length > 0) {
    Module['preInit'].pop()();
  }
}

// shouldRunNow refers to calling main(), not run().
var shouldRunNow = true;

if (Module['noInitialRun']) shouldRunNow = false;


if (!ENVIRONMENT_IS_PTHREAD) // EXIT_RUNTIME=0 only applies to default behavior of the main browser thread
  noExitRuntime = true;

if (!ENVIRONMENT_IS_PTHREAD) run();





// {{MODULE_ADDITIONS}}