text: var Module = {
    'print': function (text) {
      if (ENVIRONMENT_IS_WORKER) 
        postMessage(text); 
      else
        console.log(text);
    },
    'printError': function (text) { 
      if (ENVIRONMENT_IS_WORKER) 
        postMessage(text); 
      else
        console.log(text);
    }
  }
  // Note: For maximum-speed code, see "Optimizing Code" on the Emscripten wiki, https://github.com/kripken/emscripten/wiki/Optimizing-Code
  // Note: Some Emscripten settings may limit the speed of the generated code.
  // The Module object: Our interface to the outside world. We import
  // and export values on it, and do the work to get that through
  // closure compiler if necessary. 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 do an eval in order to handle the closure compiler
  // case, where this code here is minified but Module was defined
  // elsewhere (e.g. case 4 above). We also need to check if Module
  // already exists (e.g. case 3 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;
  if (!Module) Module = eval('(function() { try { return Module || {} } catch(e) { return {} } })()');
  
  // 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 = {};
  for (var key in Module) {
    if (Module.hasOwnProperty(key)) {
      moduleOverrides[key] = Module[key];
    }
  }
  
  // The environment setup code below is customized to use Module.
  // *** Environment setup code ***
  var ENVIRONMENT_IS_NODE = typeof process === 'object' && typeof require === 'function';
  var ENVIRONMENT_IS_WEB = typeof window === 'object';
  var ENVIRONMENT_IS_WORKER = typeof importScripts === 'function';
  var ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;
  
  if (ENVIRONMENT_IS_NODE) {
    // Expose functionality in the same simple way that the shells work
    // Note that we pollute the global namespace here, otherwise we break in node
    if (!Module['print']) Module['print'] = function print(x) {
      process['stdout'].write(x + '\n');
    };
    if (!Module['printErr']) Module['printErr'] = function printErr(x) {
      process['stderr'].write(x + '\n');
    };
  
    var nodeFS = require('fs');
    var nodePath = require('path');
  
    Module['read'] = function read(filename, binary) {
      filename = nodePath['normalize'](filename);
      var ret = nodeFS['readFileSync'](filename);
      // The path is absolute if the normalized version is the same as the resolved.
      if (!ret && filename != nodePath['resolve'](filename)) {
        filename = path.join(__dirname, '..', 'src', filename);
        ret = nodeFS['readFileSync'](filename);
      }
      if (ret && !binary) ret = ret.toString();
      return ret;
    };
  
    Module['readBinary'] = function readBinary(filename) { return Module['read'](filename, true) };
  
    Module['load'] = function load(f) {
      globalEval(read(f));
    };
  
    Module['arguments'] = process['argv'].slice(2);
  
    module['exports'] = Module;
  }
  else if (ENVIRONMENT_IS_SHELL) {
    if (!Module['print']) Module['print'] = print;
    if (typeof printErr != 'undefined') Module['printErr'] = printErr; // not present in v8 or older sm
  
    if (typeof read != 'undefined') {
      Module['read'] = read;
    } else {
      Module['read'] = function read() { throw 'no read() available (jsc?)' };
    }
  
    Module['readBinary'] = function readBinary(f) {
      return read(f, 'binary');
    };
  
    if (typeof scriptArgs != 'undefined') {
      Module['arguments'] = scriptArgs;
    } else if (typeof arguments != 'undefined') {
      Module['arguments'] = arguments;
    }
  
    this['Module'] = Module;
  
    eval("if (typeof gc === 'function' && gc.toString().indexOf('[native code]') > 0) var gc = undefined"); // wipe out the SpiderMonkey shell 'gc' function, which can confuse closure (uses it as a minified name, and it is then initted to a non-falsey value unexpectedly)
  }
  else if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
    Module['read'] = function read(url) {
      var xhr = new XMLHttpRequest();
      xhr.open('GET', url, false);
      xhr.send(null);
      return xhr.responseText;
    };
  
    if (typeof arguments != 'undefined') {
      Module['arguments'] = arguments;
    }
  
    if (typeof console !== 'undefined') {
      if (!Module['print']) Module['print'] = function print(x) {
        console.log(x);
      };
      if (!Module['printErr']) Module['printErr'] = function printErr(x) {
        console.log(x);
      };
    } else {
      // Probably a worker, and without console.log. We can do very little here...
      var TRY_USE_DUMP = false;
      if (!Module['print']) Module['print'] = (TRY_USE_DUMP && (typeof(dump) !== "undefined") ? (function(x) {
        dump(x);
      }) : (function(x) {
        // self.postMessage(x); // enable this if you want stdout to be sent as messages
      }));
    }
  
    if (ENVIRONMENT_IS_WEB) {
      this['Module'] = Module;
    } else {
      Module['load'] = importScripts;
    }
  }
  else {
    // Unreachable because SHELL is dependant on the others
    throw 'Unknown runtime environment. Where are we?';
  }
  
  function globalEval(x) {
    eval.call(null, x);
  }
  if (!Module['load'] == 'undefined' && Module['read']) {
    Module['load'] = function load(f) {
      globalEval(Module['read'](f));
    };
  }
  if (!Module['print']) {
    Module['print'] = function(){};
  }
  if (!Module['printErr']) {
    Module['printErr'] = Module['print'];
  }
  if (!Module['arguments']) {
    Module['arguments'] = [];
  }
  // *** Environment setup code ***
  
  // Closure helpers
  Module.print = Module['print'];
  Module.printErr = Module['printErr'];
  
  // Callbacks
  Module['preRun'] = [];
  Module['postRun'] = [];
  
  // Merge back in the overrides
  for (var key in moduleOverrides) {
    if (moduleOverrides.hasOwnProperty(key)) {
      Module[key] = moduleOverrides[key];
    }
  }
  
  
  
  // === Auto-generated preamble library stuff ===
  
  //========================================
  // Runtime code shared with compiler
  //========================================
  
  var Runtime = {
    stackSave: function () {
      return STACKTOP;
    },
    stackRestore: function (stackTop) {
      STACKTOP = stackTop;
    },
    forceAlign: function (target, quantum) {
      quantum = quantum || 4;
      if (quantum == 1) return target;
      if (isNumber(target) && isNumber(quantum)) {
        return Math.ceil(target/quantum)*quantum;
      } else if (isNumber(quantum) && isPowerOfTwo(quantum)) {
        return '(((' +target + ')+' + (quantum-1) + ')&' + -quantum + ')';
      }
      return 'Math.ceil((' + target + ')/' + quantum + ')*' + quantum;
    },
    isNumberType: function (type) {
      return type in Runtime.INT_TYPES || type in Runtime.FLOAT_TYPES;
    },
    isPointerType: function isPointerType(type) {
    return type[type.length-1] == '*';
  },
    isStructType: function isStructType(type) {
    if (isPointerType(type)) return false;
    if (isArrayType(type)) return true;
    if (/<?\{ ?[^}]* ?\}>?/.test(type)) return true; // { i32, i8 } etc. - anonymous struct types
    // See comment in isStructPointerType()
    return type[0] == '%';
  },
    INT_TYPES: {"i1":0,"i8":0,"i16":0,"i32":0,"i64":0},
    FLOAT_TYPES: {"float":0,"double":0},
    or64: function (x, y) {
      var l = (x | 0) | (y | 0);
      var h = (Math.round(x / 4294967296) | Math.round(y / 4294967296)) * 4294967296;
      return l + h;
    },
    and64: function (x, y) {
      var l = (x | 0) & (y | 0);
      var h = (Math.round(x / 4294967296) & Math.round(y / 4294967296)) * 4294967296;
      return l + h;
    },
    xor64: function (x, y) {
      var l = (x | 0) ^ (y | 0);
      var h = (Math.round(x / 4294967296) ^ Math.round(y / 4294967296)) * 4294967296;
      return l + h;
    },
    getNativeTypeSize: function (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 Runtime.QUANTUM_SIZE; // A pointer
          } else if (type[0] === 'i') {
            var bits = parseInt(type.substr(1));
            assert(bits % 8 === 0);
            return bits/8;
          } else {
            return 0;
          }
        }
      }
    },
    getNativeFieldSize: function (type) {
      return Math.max(Runtime.getNativeTypeSize(type), Runtime.QUANTUM_SIZE);
    },
    dedup: function dedup(items, ident) {
    var seen = {};
    if (ident) {
      return items.filter(function(item) {
        if (seen[item[ident]]) return false;
        seen[item[ident]] = true;
        return true;
      });
    } else {
      return items.filter(function(item) {
        if (seen[item]) return false;
        seen[item] = true;
        return true;
      });
    }
  },
    set: function set() {
    var args = typeof arguments[0] === 'object' ? arguments[0] : arguments;
    var ret = {};
    for (var i = 0; i < args.length; i++) {
      ret[args[i]] = 0;
    }
    return ret;
  },
    STACK_ALIGN: 8,
    getAlignSize: function (type, size, vararg) {
      // we align i64s and doubles on 64-bit boundaries, unlike x86
      if (vararg) return 8;
      if (!vararg && (type == 'i64' || type == 'double')) return 8;
      if (!type) return Math.min(size, 8); // align structures internally to 64 bits
      return Math.min(size || (type ? Runtime.getNativeFieldSize(type) : 0), Runtime.QUANTUM_SIZE);
    },
    calculateStructAlignment: function calculateStructAlignment(type) {
      type.flatSize = 0;
      type.alignSize = 0;
      var diffs = [];
      var prev = -1;
      var index = 0;
      type.flatIndexes = type.fields.map(function(field) {
        index++;
        var size, alignSize;
        if (Runtime.isNumberType(field) || Runtime.isPointerType(field)) {
          size = Runtime.getNativeTypeSize(field); // pack char; char; in structs, also char[X]s.
          alignSize = Runtime.getAlignSize(field, size);
        } else if (Runtime.isStructType(field)) {
          if (field[1] === '0') {
            // this is [0 x something]. When inside another structure like here, it must be at the end,
            // and it adds no size
            // XXX this happens in java-nbody for example... assert(index === type.fields.length, 'zero-length in the middle!');
            size = 0;
            if (Types.types[field]) {
              alignSize = Runtime.getAlignSize(null, Types.types[field].alignSize);
            } else {
              alignSize = type.alignSize || QUANTUM_SIZE;
            }
          } else {
            size = Types.types[field].flatSize;
            alignSize = Runtime.getAlignSize(null, Types.types[field].alignSize);
          }
        } else if (field[0] == 'b') {
          // bN, large number field, like a [N x i8]
          size = field.substr(1)|0;
          alignSize = 1;
        } else if (field[0] === '<') {
          // vector type
          size = alignSize = Types.types[field].flatSize; // fully aligned
        } else if (field[0] === 'i') {
          // illegal integer field, that could not be legalized because it is an internal structure field
          // it is ok to have such fields, if we just use them as markers of field size and nothing more complex
          size = alignSize = parseInt(field.substr(1))/8;
          assert(size % 1 === 0, 'cannot handle non-byte-size field ' + field);
        } else {
          assert(false, 'invalid type for calculateStructAlignment');
        }
        if (type.packed) alignSize = 1;
        type.alignSize = Math.max(type.alignSize, alignSize);
        var curr = Runtime.alignMemory(type.flatSize, alignSize); // if necessary, place this on aligned memory
        type.flatSize = curr + size;
        if (prev >= 0) {
          diffs.push(curr-prev);
        }
        prev = curr;
        return curr;
      });
      if (type.name_ && type.name_[0] === '[') {
        // arrays have 2 elements, so we get the proper difference. then we scale here. that way we avoid
        // allocating a potentially huge array for [999999 x i8] etc.
        type.flatSize = parseInt(type.name_.substr(1))*type.flatSize/2;
      }
      type.flatSize = Runtime.alignMemory(type.flatSize, type.alignSize);
      if (diffs.length == 0) {
        type.flatFactor = type.flatSize;
      } else if (Runtime.dedup(diffs).length == 1) {
        type.flatFactor = diffs[0];
      }
      type.needsFlattening = (type.flatFactor != 1);
      return type.flatIndexes;
    },
    generateStructInfo: function (struct, typeName, offset) {
      var type, alignment;
      if (typeName) {
        offset = offset || 0;
        type = (typeof Types === 'undefined' ? Runtime.typeInfo : Types.types)[typeName];
        if (!type) return null;
        if (type.fields.length != struct.length) {
          printErr('Number of named fields must match the type for ' + typeName + ': possibly duplicate struct names. Cannot return structInfo');
          return null;
        }
        alignment = type.flatIndexes;
      } else {
        var type = { fields: struct.map(function(item) { return item[0] }) };
        alignment = Runtime.calculateStructAlignment(type);
      }
      var ret = {
        __size__: type.flatSize
      };
      if (typeName) {
        struct.forEach(function(item, i) {
          if (typeof item === 'string') {
            ret[item] = alignment[i] + offset;
          } else {
            // embedded struct
            var key;
            for (var k in item) key = k;
            ret[key] = Runtime.generateStructInfo(item[key], type.fields[i], alignment[i]);
          }
        });
      } else {
        struct.forEach(function(item, i) {
          ret[item[1]] = alignment[i];
        });
      }
      return ret;
    },
    dynCall: function (sig, ptr, args) {
      if (args && args.length) {
        if (!args.splice) args = Array.prototype.slice.call(args);
        args.splice(0, 0, ptr);
        return Module['dynCall_' + sig].apply(null, args);
      } else {
        return Module['dynCall_' + sig].call(null, ptr);
      }
    },
    functionPointers: [null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null,null],
    addFunction: function (func) {
      for (var i = 0; i < Runtime.functionPointers.length; i++) {
        if (!Runtime.functionPointers[i]) {
          Runtime.functionPointers[i] = func;
          return 2*(1 + i);
        }
      }
      throw 'Finished up all reserved function pointers. Use a higher value for RESERVED_FUNCTION_POINTERS.';
    },
    removeFunction: function (index) {
      Runtime.functionPointers[(index-2)/2] = null;
    },
    getAsmConst: function (code, numArgs) {
      // code is a constant string on the heap, so we can cache these
      if (!Runtime.asmConstCache) Runtime.asmConstCache = {};
      var func = Runtime.asmConstCache[code];
      if (func) return func;
      var args = [];
      for (var i = 0; i < numArgs; i++) {
        args.push(String.fromCharCode(36) + i); // $0, $1 etc
      }
      code = Pointer_stringify(code);
      if (code[0] === '"') {
        // tolerate EM_ASM("..code..") even though EM_ASM(..code..) is correct
        if (code.indexOf('"', 1) === code.length-1) {
          code = code.substr(1, code.length-2);
        } else {
          // something invalid happened, e.g. EM_ASM("..code($0)..", input)
          abort('invalid EM_ASM input |' + code + '|. Please use EM_ASM(..code..) (no quotes) or EM_ASM({ ..code($0).. }, input) (to input values)');
        }
      }
      return Runtime.asmConstCache[code] = eval('(function(' + args.join(',') + '){ ' + code + ' })'); // new Function does not allow upvars in node
    },
    warnOnce: function (text) {
      if (!Runtime.warnOnce.shown) Runtime.warnOnce.shown = {};
      if (!Runtime.warnOnce.shown[text]) {
        Runtime.warnOnce.shown[text] = 1;
        Module.printErr(text);
      }
    },
    funcWrappers: {},
    getFuncWrapper: function (func, sig) {
      assert(sig);
      if (!Runtime.funcWrappers[func]) {
        Runtime.funcWrappers[func] = function dynCall_wrapper() {
          return Runtime.dynCall(sig, func, arguments);
        };
      }
      return Runtime.funcWrappers[func];
    },
    UTF8Processor: function () {
      var buffer = [];
      var needed = 0;
      this.processCChar = function (code) {
        code = code & 0xFF;
  
        if (buffer.length == 0) {
          if ((code & 0x80) == 0x00) {        // 0xxxxxxx
            return String.fromCharCode(code);
          }
          buffer.push(code);
          if ((code & 0xE0) == 0xC0) {        // 110xxxxx
            needed = 1;
          } else if ((code & 0xF0) == 0xE0) { // 1110xxxx
            needed = 2;
          } else {                            // 11110xxx
            needed = 3;
          }
          return '';
        }
  
        if (needed) {
          buffer.push(code);
          needed--;
          if (needed > 0) return '';
        }
  
        var c1 = buffer[0];
        var c2 = buffer[1];
        var c3 = buffer[2];
        var c4 = buffer[3];
        var ret;
        if (buffer.length == 2) {
          ret = String.fromCharCode(((c1 & 0x1F) << 6)  | (c2 & 0x3F));
        } else if (buffer.length == 3) {
          ret = String.fromCharCode(((c1 & 0x0F) << 12) | ((c2 & 0x3F) << 6)  | (c3 & 0x3F));
        } else {
          // http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
          var codePoint = ((c1 & 0x07) << 18) | ((c2 & 0x3F) << 12) |
                          ((c3 & 0x3F) << 6)  | (c4 & 0x3F);
          ret = String.fromCharCode(
            Math.floor((codePoint - 0x10000) / 0x400) + 0xD800,
            (codePoint - 0x10000) % 0x400 + 0xDC00);
        }
        buffer.length = 0;
        return ret;
      }
      this.processJSString = function processJSString(string) {
        string = unescape(encodeURIComponent(string));
        var ret = [];
        for (var i = 0; i < string.length; i++) {
          ret.push(string.charCodeAt(i));
        }
        return ret;
      }
    },
    stackAlloc: function (size) { var ret = STACKTOP;STACKTOP = (STACKTOP + size)|0;STACKTOP = (((STACKTOP)+7)&-8); return ret; },
    staticAlloc: function (size) { var ret = STATICTOP;STATICTOP = (STATICTOP + size)|0;STATICTOP = (((STATICTOP)+7)&-8); return ret; },
    dynamicAlloc: function (size) { var ret = DYNAMICTOP;DYNAMICTOP = (DYNAMICTOP + size)|0;DYNAMICTOP = (((DYNAMICTOP)+7)&-8); if (DYNAMICTOP >= TOTAL_MEMORY) enlargeMemory();; return ret; },
    alignMemory: function (size,quantum) { var ret = size = Math.ceil((size)/(quantum ? quantum : 8))*(quantum ? quantum : 8); return ret; },
    makeBigInt: function (low,high,unsigned) { var ret = (unsigned ? ((+((low>>>0)))+((+((high>>>0)))*(+4294967296))) : ((+((low>>>0)))+((+((high|0)))*(+4294967296)))); return ret; },
    GLOBAL_BASE: 8,
    QUANTUM_SIZE: 4,
    __dummy__: 0
  }
  
  
  Module['Runtime'] = Runtime;
  
  function jsCall() {
    var args = Array.prototype.slice.call(arguments);
    return Runtime.functionPointers[args[0]].apply(null, args.slice(1));
  }
  
  
  
  
  
  
  
  
  //========================================
  // Runtime essentials
  //========================================
  
  var __THREW__ = 0; // Used in checking for thrown exceptions.
  
  var ABORT = false; // whether we are quitting the application. no code should run after this. set in exit() and abort()
  var EXITSTATUS = 0;
  
  var undef = 0;
  // tempInt is used for 32-bit signed values or smaller. tempBigInt is used
  // for 32-bit unsigned values or more than 32 bits. TODO: audit all uses of tempInt
  var tempValue, tempInt, tempBigInt, tempInt2, tempBigInt2, tempPair, tempBigIntI, tempBigIntR, tempBigIntS, tempBigIntP, tempBigIntD, tempDouble, tempFloat;
  var tempI64, tempI64b;
  var tempRet0, tempRet1, tempRet2, tempRet3, tempRet4, tempRet5, tempRet6, tempRet7, tempRet8, tempRet9;
  
  function assert(condition, text) {
    if (!condition) {
      abort('Assertion failed: ' + text);
    }
  }
  
  var globalScope = this;
  
  // C calling interface. A convenient way to call C functions (in C files, or
  // defined with extern "C").
  //
  // Note: LLVM optimizations can inline and remove functions, after which you will not be
  //       able to call them. Closure can also do so. To avoid that, add your function to
  //       the exports using something like
  //
  //         -s EXPORTED_FUNCTIONS='["_main", "_myfunc"]'
  //
  // @param ident      The name of the C function (note that C++ functions will be name-mangled - use extern "C")
  // @param returnType The return type of the function, one of the JS types 'number', 'string' or 'array' (use 'number' for any C pointer, and
  //                   'array' for JavaScript arrays and typed arrays; note that arrays are 8-bit).
  // @param argTypes   An array of the types of arguments for the function (if there are no arguments, this can be ommitted). Types are as in returnType,
  //                   except that 'array' is not possible (there is no way for us to know the length of the array)
  // @param args       An array of the arguments to the function, as native JS values (as in returnType)
  //                   Note that string arguments will be stored on the stack (the JS string will become a C string on the stack).
  // @return           The return value, as a native JS value (as in returnType)
  function ccall(ident, returnType, argTypes, args) {
    return ccallFunc(getCFunc(ident), returnType, argTypes, args);
  }
  Module["ccall"] = ccall;
  
  // Returns the C function with a specified identifier (for C++, you need to do manual name mangling)
  function getCFunc(ident) {
    try {
      var func = Module['_' + ident]; // closure exported function
      if (!func) func = eval('_' + ident); // explicit lookup
    } catch(e) {
    }
    assert(func, 'Cannot call unknown function ' + ident + ' (perhaps LLVM optimizations or closure removed it?)');
    return func;
  }
  
  // Internal function that does a C call using a function, not an identifier
  function ccallFunc(func, returnType, argTypes, args) {
    var stack = 0;
    function toC(value, type) {
      if (type == 'string') {
        if (value === null || value === undefined || value === 0) return 0; // null string
        value = intArrayFromString(value);
        type = 'array';
      }
      if (type == 'array') {
        if (!stack) stack = Runtime.stackSave();
        var ret = Runtime.stackAlloc(value.length);
        writeArrayToMemory(value, ret);
        return ret;
      }
      return value;
    }
    function fromC(value, type) {
      if (type == 'string') {
        return Pointer_stringify(value);
      }
      assert(type != 'array');
      return value;
    }
    var i = 0;
    var cArgs = args ? args.map(function(arg) {
      return toC(arg, argTypes[i++]);
    }) : [];
    var ret = fromC(func.apply(null, cArgs), returnType);
    if (stack) Runtime.stackRestore(stack);
    return ret;
  }
  
  // Returns a native JS wrapper for a C function. This is similar to ccall, but
  // returns a function you can call repeatedly in a normal way. For example:
  //
  //   var my_function = cwrap('my_c_function', 'number', ['number', 'number']);
  //   alert(my_function(5, 22));
  //   alert(my_function(99, 12));
  //
  function cwrap(ident, returnType, argTypes) {
    var func = getCFunc(ident);
    return function() {
      return ccallFunc(func, returnType, argTypes, Array.prototype.slice.call(arguments));
    }
  }
  Module["cwrap"] = cwrap;
  
  // Sets a value in memory in a dynamic way at run-time. Uses the
  // type data. This is the same as makeSetValue, except that
  // makeSetValue is done at compile-time and generates the needed
  // code then, whereas this function picks the right code at
  // run-time.
  // Note that setValue and getValue only do *aligned* writes and reads!
  // Note that ccall uses JS types as for defining types, while setValue and
  // getValue need LLVM types ('i8', 'i32') - this is a lower-level operation
  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)]=value; break;
        case 'i8': HEAP8[(ptr)]=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) ? (tempDouble > (+0) ? ((Math_min((+(Math_floor((tempDouble)/(+4294967296)))), (+4294967295)))|0)>>>0 : (~~((+(Math_ceil((tempDouble - +(((~~(tempDouble)))>>>0))/(+4294967296))))))>>>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);
      }
  }
  Module['setValue'] = setValue;
  
  // Parallel to setValue.
  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)];
        case 'i8': return HEAP8[(ptr)];
        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 setValue: ' + type);
      }
    return null;
  }
  Module['getValue'] = getValue;
  
  var ALLOC_NORMAL = 0; // Tries to use _malloc()
  var ALLOC_STACK = 1; // Lives for the duration of the current function call
  var ALLOC_STATIC = 2; // Cannot be freed
  var ALLOC_DYNAMIC = 3; // Cannot be freed except through sbrk
  var ALLOC_NONE = 4; // Do not allocate
  Module['ALLOC_NORMAL'] = ALLOC_NORMAL;
  Module['ALLOC_STACK'] = ALLOC_STACK;
  Module['ALLOC_STATIC'] = ALLOC_STATIC;
  Module['ALLOC_DYNAMIC'] = ALLOC_DYNAMIC;
  Module['ALLOC_NONE'] = ALLOC_NONE;
  
  // 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_*
  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, Runtime.stackAlloc, Runtime.staticAlloc, Runtime.dynamicAlloc][allocator === undefined ? ALLOC_STATIC : allocator](Math.max(size, singleType ? 1 : types.length));
    }
  
    if (zeroinit) {
      var ptr = ret, stop;
      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(slab, ret);
      } else {
        HEAPU8.set(new Uint8Array(slab), ret);
      }
      return ret;
    }
  
    var i = 0, type, typeSize, previousType;
    while (i < size) {
      var curr = slab[i];
  
      if (typeof curr === 'function') {
        curr = Runtime.getFunctionIndex(curr);
      }
  
      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 = Runtime.getNativeTypeSize(type);
        previousType = type;
      }
      i += typeSize;
    }
  
    return ret;
  }
  Module['allocate'] = allocate;
  
  function Pointer_stringify(ptr, /* optional */ length) {
    // TODO: use TextDecoder
    // Find the length, and check for UTF while doing so
    var hasUtf = false;
    var t;
    var i = 0;
    while (1) {
      t = HEAPU8[(((ptr)+(i))|0)];
      if (t >= 128) hasUtf = true;
      else if (t == 0 && !length) break;
      i++;
      if (length && i == length) break;
    }
    if (!length) length = i;
  
    var ret = '';
  
    if (!hasUtf) {
      var MAX_CHUNK = 1024; // split up into chunks, because .apply on a huge string can overflow the stack
      var curr;
      while (length > 0) {
        curr = String.fromCharCode.apply(String, HEAPU8.subarray(ptr, ptr + Math.min(length, MAX_CHUNK)));
        ret = ret ? ret + curr : curr;
        ptr += MAX_CHUNK;
        length -= MAX_CHUNK;
      }
      return ret;
    }
  
    var utf8 = new Runtime.UTF8Processor();
    for (i = 0; i < length; i++) {
      t = HEAPU8[(((ptr)+(i))|0)];
      ret += utf8.processCChar(t);
    }
    return ret;
  }
  Module['Pointer_stringify'] = Pointer_stringify;
  
  // 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);
    }
  }
  Module['UTF16ToString'] = UTF16ToString;
  
  // Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
  // null-terminated and encoded in UTF16LE form. The copy will require at most (str.length*2+1)*2 bytes of space in the HEAP.
  function stringToUTF16(str, outPtr) {
    for(var i = 0; i < str.length; ++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)+(i*2))>>1)]=codeUnit;
    }
    // Null-terminate the pointer to the HEAP.
    HEAP16[(((outPtr)+(str.length*2))>>1)]=0;
  }
  Module['stringToUTF16'] = stringToUTF16;
  
  // Given a pointer 'ptr' to a null-terminated UTF32LE-encoded string in the emscripten HEAP, returns
  // a copy of that string as a Javascript String object.
  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.
      if (utf32 >= 0x10000) {
        var ch = utf32 - 0x10000;
        str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF));
      } else {
        str += String.fromCharCode(utf32);
      }
    }
  }
  Module['UTF32ToString'] = UTF32ToString;
  
  // Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
  // null-terminated and encoded in UTF32LE form. The copy will require at most (str.length+1)*4 bytes of space in the HEAP,
  // but can use less, since str.length does not return the number of characters in the string, but the number of UTF-16 code units in the string.
  function stringToUTF32(str, outPtr) {
    var iChar = 0;
    for(var iCodeUnit = 0; iCodeUnit < str.length; ++iCodeUnit) {
      // 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.
      var codeUnit = str.charCodeAt(iCodeUnit); // possibly a lead surrogate
      if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) {
        var trailSurrogate = str.charCodeAt(++iCodeUnit);
        codeUnit = 0x10000 + ((codeUnit & 0x3FF) << 10) | (trailSurrogate & 0x3FF);
      }
      HEAP32[(((outPtr)+(iChar*4))>>2)]=codeUnit;
      ++iChar;
    }
    // Null-terminate the pointer to the HEAP.
    HEAP32[(((outPtr)+(iChar*4))>>2)]=0;
  }
  Module['stringToUTF32'] = stringToUTF32;
  
  function demangle(func) {
    try {
      // Special-case the entry point, since its name differs from other name mangling.
      if (func == 'Object._main' || func == '_main') {
        return 'main()';
      }
      if (typeof func === 'number') func = Pointer_stringify(func);
      if (func[0] !== '_') return func;
      if (func[1] !== '_') return func; // C function
      if (func[2] !== 'Z') return func;
      switch (func[3]) {
        case 'n': return 'operator new()';
        case 'd': return 'operator delete()';
      }
      var i = 3;
      // params, etc.
      var basicTypes = {
        'v': 'void',
        'b': 'bool',
        'c': 'char',
        's': 'short',
        'i': 'int',
        'l': 'long',
        'f': 'float',
        'd': 'double',
        'w': 'wchar_t',
        'a': 'signed char',
        'h': 'unsigned char',
        't': 'unsigned short',
        'j': 'unsigned int',
        'm': 'unsigned long',
        'x': 'long long',
        'y': 'unsigned long long',
        'z': '...'
      };
      function dump(x) {
        //return;
        if (x) Module.print(x);
        Module.print(func);
        var pre = '';
        for (var a = 0; a < i; a++) pre += ' ';
        Module.print (pre + '^');
      }
      var subs = [];
      function parseNested() {
        i++;
        if (func[i] === 'K') i++; // ignore const
        var parts = [];
        while (func[i] !== 'E') {
          if (func[i] === 'S') { // substitution
            i++;
            var next = func.indexOf('_', i);
            var num = func.substring(i, next) || 0;
            parts.push(subs[num] || '?');
            i = next+1;
            continue;
          }
          if (func[i] === 'C') { // constructor
            parts.push(parts[parts.length-1]);
            i += 2;
            continue;
          }
          var size = parseInt(func.substr(i));
          var pre = size.toString().length;
          if (!size || !pre) { i--; break; } // counter i++ below us
          var curr = func.substr(i + pre, size);
          parts.push(curr);
          subs.push(curr);
          i += pre + size;
        }
        i++; // skip E
        return parts;
      }
      var first = true;
      function parse(rawList, limit, allowVoid) { // main parser
        limit = limit || Infinity;
        var ret = '', list = [];
        function flushList() {
          return '(' + list.join(', ') + ')';
        }
        var name;
        if (func[i] === 'N') {
          // namespaced N-E
          name = parseNested().join('::');
          limit--;
          if (limit === 0) return rawList ? [name] : name;
        } else {
          // not namespaced
          if (func[i] === 'K' || (first && func[i] === 'L')) i++; // ignore const and first 'L'
          var size = parseInt(func.substr(i));
          if (size) {
            var pre = size.toString().length;
            name = func.substr(i + pre, size);
            i += pre + size;
          }
        }
        first = false;
        if (func[i] === 'I') {
          i++;
          var iList = parse(true);
          var iRet = parse(true, 1, true);
          ret += iRet[0] + ' ' + name + '<' + iList.join(', ') + '>';
        } else {
          ret = name;
        }
        paramLoop: while (i < func.length && limit-- > 0) {
          //dump('paramLoop');
          var c = func[i++];
          if (c in basicTypes) {
            list.push(basicTypes[c]);
          } else {
            switch (c) {
              case 'P': list.push(parse(true, 1, true)[0] + '*'); break; // pointer
              case 'R': list.push(parse(true, 1, true)[0] + '&'); break; // reference
              case 'L': { // literal
                i++; // skip basic type
                var end = func.indexOf('E', i);
                var size = end - i;
                list.push(func.substr(i, size));
                i += size + 2; // size + 'EE'
                break;
              }
              case 'A': { // array
                var size = parseInt(func.substr(i));
                i += size.toString().length;
                if (func[i] !== '_') throw '?';
                i++; // skip _
                list.push(parse(true, 1, true)[0] + ' [' + size + ']');
                break;
              }
              case 'E': break paramLoop;
              default: ret += '?' + c; break paramLoop;
            }
          }
        }
        if (!allowVoid && list.length === 1 && list[0] === 'void') list = []; // avoid (void)
        return rawList ? list : ret + flushList();
      }
      return parse();
    } catch(e) {
      return func;
    }
  }
  
  function demangleAll(text) {
    return text.replace(/__Z[\w\d_]+/g, function(x) { var y = demangle(x); return x === y ? x : (x + ' [' + y + ']') });
  }
  
  function stackTrace() {
    var stack = new Error().stack;
    return stack ? demangleAll(stack) : '(no stack trace available)'; // Stack trace is not available at least on IE10 and Safari 6.
  }
  
  // Memory management
  
  var PAGE_SIZE = 4096;
  function alignMemoryPage(x) {
    return (x+4095)&-4096;
  }
  
  var HEAP;
  var HEAP8, HEAPU8, HEAP16, HEAPU16, HEAP32, HEAPU32, HEAPF32, HEAPF64;
  
  var STATIC_BASE = 0, STATICTOP = 0, staticSealed = false; // static area
  var STACK_BASE = 0, STACKTOP = 0, STACK_MAX = 0; // stack area
  var DYNAMIC_BASE = 0, DYNAMICTOP = 0; // dynamic area handled by sbrk
  
  function enlargeMemory() {
    abort('Cannot enlarge memory arrays in asm.js. Either (1) compile with -s TOTAL_MEMORY=X with X higher than the current value ' + TOTAL_MEMORY + ', or (2) set Module.TOTAL_MEMORY before the program runs.');
  }
  
  var TOTAL_STACK = Module['TOTAL_STACK'] || 5242880;
  var TOTAL_MEMORY = Module['TOTAL_MEMORY'] || 16777216;
  var FAST_MEMORY = Module['FAST_MEMORY'] || 2097152;
  
  var totalMemory = 4096;
  while (totalMemory < TOTAL_MEMORY || totalMemory < 2*TOTAL_STACK) {
    if (totalMemory < 16*1024*1024) {
      totalMemory *= 2;
    } else {
      totalMemory += 16*1024*1024
    }
  }
  if (totalMemory !== TOTAL_MEMORY) {
    Module.printErr('increasing TOTAL_MEMORY to ' + totalMemory + ' to be more reasonable');
    TOTAL_MEMORY = totalMemory;
  }
  
  // Initialize the runtime's memory
  // check for full engine support (use string 'subarray' to avoid closure compiler confusion)
  assert(typeof Int32Array !== 'undefined' && typeof Float64Array !== 'undefined' && !!(new Int32Array(1)['subarray']) && !!(new Int32Array(1)['set']),
         'Cannot fallback to non-typed array case: Code is too specialized');
  
  var buffer = new ArrayBuffer(TOTAL_MEMORY);
  HEAP8 = new Int8Array(buffer);
  HEAP16 = new Int16Array(buffer);
  HEAP32 = new Int32Array(buffer);
  HEAPU8 = new Uint8Array(buffer);
  HEAPU16 = new Uint16Array(buffer);
  HEAPU32 = new Uint32Array(buffer);
  HEAPF32 = new Float32Array(buffer);
  HEAPF64 = new Float64Array(buffer);
  
  // Endianness check (note: assumes compiler arch was little-endian)
  HEAP32[0] = 255;
  assert(HEAPU8[0] === 255 && HEAPU8[3] === 0, 'Typed arrays 2 must be run on a little-endian system');
  
  Module['HEAP'] = HEAP;
  Module['HEAP8'] = HEAP8;
  Module['HEAP16'] = HEAP16;
  Module['HEAP32'] = HEAP32;
  Module['HEAPU8'] = HEAPU8;
  Module['HEAPU16'] = HEAPU16;
  Module['HEAPU32'] = HEAPU32;
  Module['HEAPF32'] = HEAPF32;
  Module['HEAPF64'] = HEAPF64;
  
  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) {
          Runtime.dynCall('v', func);
        } else {
          Runtime.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 runtime has exited
  
  var runtimeInitialized = false;
  
  function preRun() {
    // compatibility - merge in anything from Module['preRun'] at this time
    if (Module['preRun']) {
      if (typeof Module['preRun'] == 'function') Module['preRun'] = [Module['preRun']];
      while (Module['preRun'].length) {
        addOnPreRun(Module['preRun'].shift());
      }
    }
    callRuntimeCallbacks(__ATPRERUN__);
  }
  
  function ensureInitRuntime() {
    if (runtimeInitialized) return;
    runtimeInitialized = true;
    callRuntimeCallbacks(__ATINIT__);
  }
  
  function preMain() {
    callRuntimeCallbacks(__ATMAIN__);
  }
  
  function exitRuntime() {
    callRuntimeCallbacks(__ATEXIT__);
  }
  
  function postRun() {
    // compatibility - merge in anything from Module['postRun'] at this time
    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);
  }
  Module['addOnPreRun'] = Module.addOnPreRun = addOnPreRun;
  
  function addOnInit(cb) {
    __ATINIT__.unshift(cb);
  }
  Module['addOnInit'] = Module.addOnInit = addOnInit;
  
  function addOnPreMain(cb) {
    __ATMAIN__.unshift(cb);
  }
  Module['addOnPreMain'] = Module.addOnPreMain = addOnPreMain;
  
  function addOnExit(cb) {
    __ATEXIT__.unshift(cb);
  }
  Module['addOnExit'] = Module.addOnExit = addOnExit;
  
  function addOnPostRun(cb) {
    __ATPOSTRUN__.unshift(cb);
  }
  Module['addOnPostRun'] = Module.addOnPostRun = addOnPostRun;
  
  // Tools
  
  // This processes a JS string into a C-line array of numbers, 0-terminated.
  // For LLVM-originating strings, see parser.js:parseLLVMString function
  function intArrayFromString(stringy, dontAddNull, length /* optional */) {
    var ret = (new Runtime.UTF8Processor()).processJSString(stringy);
    if (length) {
      ret.length = length;
    }
    if (!dontAddNull) {
      ret.push(0);
    }
    return ret;
  }
  Module['intArrayFromString'] = intArrayFromString;
  
  function intArrayToString(array) {
    var ret = [];
    for (var i = 0; i < array.length; i++) {
      var chr = array[i];
      if (chr > 0xFF) {
        chr &= 0xFF;
      }
      ret.push(String.fromCharCode(chr));
    }
    return ret.join('');
  }
  Module['intArrayToString'] = intArrayToString;
  
  // Write a Javascript array to somewhere in the heap
  function writeStringToMemory(string, buffer, dontAddNull) {
    var array = intArrayFromString(string, dontAddNull);
    var i = 0;
    while (i < array.length) {
      var chr = array[i];
      HEAP8[(((buffer)+(i))|0)]=chr;
      i = i + 1;
    }
  }
  Module['writeStringToMemory'] = writeStringToMemory;
  
  function writeArrayToMemory(array, buffer) {
    for (var i = 0; i < array.length; i++) {
      HEAP8[(((buffer)+(i))|0)]=array[i];
    }
  }
  Module['writeArrayToMemory'] = writeArrayToMemory;
  
  function writeAsciiToMemory(str, buffer, dontAddNull) {
    for (var i = 0; i < str.length; i++) {
      HEAP8[(((buffer)+(i))|0)]=str.charCodeAt(i);
    }
    if (!dontAddNull) HEAP8[(((buffer)+(str.length))|0)]=0;
  }
  Module['writeAsciiToMemory'] = writeAsciiToMemory;
  
  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;
  }
  
  // check for imul support, and also for correctness ( https://bugs.webkit.org/show_bug.cgi?id=126345 )
  if (!Math['imul'] || Math['imul'](0xffffffff, 5) !== -5) Math['imul'] = function imul(a, b) {
    var ah  = a >>> 16;
    var al = a & 0xffff;
    var bh  = b >>> 16;
    var bl = b & 0xffff;
    return (al*bl + ((ah*bl + al*bh) << 16))|0;
  };
  Math.imul = Math['imul'];
  
  
  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_min = Math.min;
  
  // 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
  // PRE_RUN_ADDITIONS (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 addRunDependency(id) {
    runDependencies++;
    if (Module['monitorRunDependencies']) {
      Module['monitorRunDependencies'](runDependencies);
    }
  }
  Module['addRunDependency'] = addRunDependency;
  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['removeRunDependency'] = removeRunDependency;
  
  Module["preloadedImages"] = {}; // maps url to image data
  Module["preloadedAudios"] = {}; // maps url to audio data
  
  
  var memoryInitializer = null;
  
  // === Body ===
  
  
  
  STATIC_BASE = 8;
  
  STATICTOP = STATIC_BASE + 2256;
  
  
  /* global initializers */ __ATINIT__.push({ func: function() { runPostSets() } });
  
  
  
  
  
  
  
  
  
  
  
  var _stdout;
  var _stdout=_stdout=allocate(1, "i32*", ALLOC_STATIC);
  var _stderr;
  var _stderr=_stderr=allocate(1, "i32*", ALLOC_STATIC);
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  /* memory initializer */ allocate([102,105,116,116,105,110,103,32,100,97,116,97,32,97,115,32,102,111,108,108,111,119,115,58,0,0,0,0,0,0,0,0,111,98,116,97,105,110,101,100,32,112,97,114,97,109,101,116,101,114,115,58,0,0,0,0,10,108,109,109,105,110,32,74,97,99,111,98,105,97,110,0,82,101,115,117,108,116,115,58,0,0,0,0,0,0,0,0,70,105,116,116,105,110,103,32,46,46,46,0,0,0,0,0,176,6,0,0,104,6,0,0,112,5,0,0,72,4,0,0,88,2,0,0,0,2,0,0,192,1,0,0,72,1,0,0,0,1,0,0,224,0,0,0,40,6,0,0,240,5,0,0,0,0,0,0,0,0,254,60,0,0,0,0,0,0,254,60,0,0,0,0,0,0,254,60,0,0,0,0,0,0,254,60,0,0,0,0,0,0,89,64,100,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,255,255,255,255,255,255,255,255,99,114,97,115,104,101,100,32,32,32,32,40,110,111,116,32,101,110,111,117,103,104,32,109,101,109,111,114,121,41,0,0,102,97,105,108,101,100,32,32,32,32,32,40,103,116,111,108,60,116,111,108,58,32,99,97,110,110,111,116,32,105,109,112,114,111,118,101,32,97,112,112,114,111,120,105,109,97,116,101,32,115,111,108,117,116,105,111,110,32,97,110,121,32,102,117,114,116,104,101,114,41,0,0,102,97,105,108,101,100,32,32,32,32,32,40,120,116,111,108,60,116,111,108,58,32,99,97,110,110,111,116,32,105,109,112,114,111,118,101,32,97,112,112,114,111,120,105,109,97,116,101,32,115,111,108,117,116,105,111,110,32,97,110,121,32,102,117,114,116,104,101,114,41,0,0,32,32,116,91,37,50,100,93,61,37,52,103,32,121,61,37,54,103,32,102,105,116,61,37,49,48,103,32,114,101,115,105,100,117,101,61,37,49,50,103,10,0,0,0,0,0,0,0,102,97,105,108,101,100,32,32,32,32,32,40,102,116,111,108,60,116,111,108,58,32,99,97,110,110,111,116,32,114,101,100,117,99,101,32,115,117,109,32,111,102,32,115,113,117,97,114,101,115,32,97,110,121,32,102,117,114,116,104,101,114,41,0,101,120,104,97,117,115,116,101,100,32,32,40,110,117,109,98,101,114,32,111,102,32,102,117,110,99,116,105,111,110,32,99,97,108,108,115,32,101,120,99,101,101,100,105,110,103,32,112,114,101,115,101,116,32,112,97,116,105,101,110,99,101,41,0,111,98,116,97,105,110,101,100,32,110,111,114,109,58,10,32,32,37,49,50,103,10,0,0,116,114,97,112,112,101,100,32,32,32,32,40,98,121,32,100,101,103,101,110,101,114,97,99,121,59,32,105,110,99,114,101,97,115,105,110,103,32,101,112,115,105,108,111,110,32,109,105,103,104,116,32,104,101,108,112,41,0,0,0,0,0,0,0,108,109,109,105,110,32,102,105,110,97,108,32,0,0,0,0,108,109,109,105,110,32,111,117,116,99,111,109,101,32,40,37,105,41,32,120,110,111,114,109,32,37,103,32,102,116,111,108,32,37,103,32,120,116,111,108,32,37,103,10,0,0,0,0,37,51,105,32,37,50,105,32,37,57,46,50,103,32,37,57,46,50,103,32,37,49,52,46,54,103,32,37,57,46,50,103,32,37,49,48,46,51,101,32,37,49,48,46,51,101,32,37,50,49,46,49,53,101,0,0,108,109,109,105,110,32,40,37,105,58,37,105,41,32,0,0,32,32,112,97,114,91,37,105,93,32,61,32,37,49,50,103,10,0,0,0,0,0,0,0,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,112,37,105,0,0,0,0,0,0,32,32,111,32,32,105,32,32,32,32,32,108,109,112,97,114,32,32,32,32,112,114,101,114,101,100,32,32,32,32,32,32,32,32,32,32,114,97,116,105,111,32,32,32,32,100,105,114,100,101,114,32,32,32,32,32,32,100,101,108,116,97,32,32,32,32,32,32,112,110,111,114,109,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,32,102,110,111,114,109,0,108,109,109,105,110,32,100,105,97,103,32,32,0,0,0,0,37,46,53,101,32,0,0,0,32,32,0,0,0,0,0,0,108,109,109,105,110,32,115,116,97,114,116,32,0,0,0,0,108,109,109,105,110,58,32,108,111,103,105,99,97,108,32,118,97,114,105,97,98,108,101,32,115,99,97,108,101,95,100,105,97,103,61,37,105,44,32,115,104,111,117,108,100,32,98,101,32,48,32,111,114,32,49,10,0,0,0,0,0,0,0,0,108,109,109,105,110,58,32,110,111,110,112,111,115,105,116,105,118,101,32,115,116,101,112,98,111,117,110,100,32,37,103,10,0,0,0,0,0,0,0,0,99,111,110,118,101,114,103,101,100,32,32,40,98,111,116,104,32,101,114,114,111,114,115,32,97,114,101,32,97,116,32,109,111,115,116,32,116,111,108,41,0,0,0,0,0,0,0,0,108,109,109,105,110,58,32,110,111,110,112,111,115,105,116,105,118,101,32,102,117,110,99,116,105,111,110,32,101,118,97,108,117,97,116,105,111,110,115,32,108,105,109,105,116,32,37,105,10,0,0,0,0,0,0,0,108,109,109,105,110,58,32,110,101,103,97,116,105,118,101,32,116,111,108,101,114,97,110,99,101,32,40,97,116,32,108,101,97,115,116,32,111,110,101,32,111,102,32,37,103,32,37,103,32,37,103,41,10,0,0,0,108,109,109,105,110,58,32,110,117,109,98,101,114,32,111,102,32,100,97,116,97,32,112,111,105,110,116,115,32,40,37,105,41,32,115,109,97,108,108,101,114,32,116,104,97,110,32,110,117,109,98,101,114,32,111,102,32,112,97,114,97,109,101,116,101,114,115,32,40,37,105,41,10,0,0,0,0,0,0,0,108,109,109,105,110,58,32,105,110,118,97,108,105,100,32,110,117,109,98,101,114,32,111,102,32,112,97,114,97,109,101,116,101,114,115,32,37,105,10,0,32,61,62,32,37,49,56,46,49,49,103,10,0,0,0,0,99,111,110,118,101,114,103,101,100,32,32,40,116,104,101,32,114,101,108,97,116,105,118,101,32,101,114,114,111,114,32,111,102,32,116,104,101,32,112,97,114,97,109,101,116,101,114,32,118,101,99,116,111,114,32,105,115,32,97,116,32,109,111,115,116,32,116,111,108,41,0,0,32,37,49,54,46,57,103,0,115,116,97,116,117,115,32,97,102,116,101,114,32,37,100,32,102,117,110,99,116,105,111,110,32,101,118,97,108,117,97,116,105,111,110,115,58,10,32,32,37,115,10,0,0,0,0,0,115,116,111,112,112,101,100,32,32,32,32,40,98,114,101,97,107,32,114,101,113,117,101,115,116,101,100,32,119,105,116,104,105,110,32,102,117,110,99,116,105,111,110,32,101,118,97,108,117,97,116,105,111,110,41,0,101,120,112,108,111,100,101,100,32,32,32,40,102,97,116,97,108,32,99,111,100,105,110,103,32,101,114,114,111,114,58,32,105,109,112,114,111,112,101,114,32,105,110,112,117,116,32,112,97,114,97,109,101,116,101,114,115,41,0,0,0,0,0,0,99,111,110,118,101,114,103,101,100,32,32,40,116,104,101,32,114,101,108,97,116,105,118,101,32,101,114,114,111,114,32,105,110,32,116,104,101,32,115,117,109,32,111,102,32,115,113,117,97,114,101,115,32,105,115,32,97,116,32,109,111,115,116,32,116,111,108,41,0,0,0,0,102,111,117,110,100,32,122,101,114,111,32,40,115,117,109,32,111,102,32,115,113,117,97,114,101,115,32,98,101,108,111,119,32,117,110,100,101,114,102,108,111,119,32,108,105,109,105,116,41,0,0,0,0,0,0,0], "i8", ALLOC_NONE, Runtime.GLOBAL_BASE);
  
  
  
  var tempDoublePtr = Runtime.alignMemory(allocate(12, "i8", ALLOC_STATIC), 8);
  
  assert(tempDoublePtr % 8 == 0);
  
  function copyTempFloat(ptr) { // functions, because inlining this code increases code size too much
  
    HEAP8[tempDoublePtr] = HEAP8[ptr];
  
    HEAP8[tempDoublePtr+1] = HEAP8[ptr+1];
  
    HEAP8[tempDoublePtr+2] = HEAP8[ptr+2];
  
    HEAP8[tempDoublePtr+3] = HEAP8[ptr+3];
  
  }
  
  function copyTempDouble(ptr) {
  
    HEAP8[tempDoublePtr] = HEAP8[ptr];
  
    HEAP8[tempDoublePtr+1] = HEAP8[ptr+1];
  
    HEAP8[tempDoublePtr+2] = HEAP8[ptr+2];
  
    HEAP8[tempDoublePtr+3] = HEAP8[ptr+3];
  
    HEAP8[tempDoublePtr+4] = HEAP8[ptr+4];
  
    HEAP8[tempDoublePtr+5] = HEAP8[ptr+5];
  
    HEAP8[tempDoublePtr+6] = HEAP8[ptr+6];
  
    HEAP8[tempDoublePtr+7] = HEAP8[ptr+7];
  
  }
  
  
    
    
    function _emscripten_memcpy_big(dest, src, num) {
        HEAPU8.set(HEAPU8.subarray(src, src+num), dest);
        return dest;
      } 
    Module["_memcpy"] = _memcpy;var _llvm_memcpy_p0i8_p0i8_i32=_memcpy;
  
    
    
    
    
    var ERRNO_CODES={EPERM:1,ENOENT:2,ESRCH:3,EINTR:4,EIO:5,ENXIO:6,E2BIG:7,ENOEXEC:8,EBADF:9,ECHILD:10,EAGAIN:11,EWOULDBLOCK:11,ENOMEM:12,EACCES:13,EFAULT:14,ENOTBLK:15,EBUSY:16,EEXIST:17,EXDEV:18,ENODEV:19,ENOTDIR:20,EISDIR:21,EINVAL:22,ENFILE:23,EMFILE:24,ENOTTY:25,ETXTBSY:26,EFBIG:27,ENOSPC:28,ESPIPE:29,EROFS:30,EMLINK:31,EPIPE:32,EDOM:33,ERANGE:34,ENOMSG:42,EIDRM:43,ECHRNG:44,EL2NSYNC:45,EL3HLT:46,EL3RST:47,ELNRNG:48,EUNATCH:49,ENOCSI:50,EL2HLT:51,EDEADLK:35,ENOLCK:37,EBADE:52,EBADR:53,EXFULL:54,ENOANO:55,EBADRQC:56,EBADSLT:57,EDEADLOCK:35,EBFONT:59,ENOSTR:60,ENODATA:61,ETIME:62,ENOSR:63,ENONET:64,ENOPKG:65,EREMOTE:66,ENOLINK:67,EADV:68,ESRMNT:69,ECOMM:70,EPROTO:71,EMULTIHOP:72,EDOTDOT:73,EBADMSG:74,ENOTUNIQ:76,EBADFD:77,EREMCHG:78,ELIBACC:79,ELIBBAD:80,ELIBSCN:81,ELIBMAX:82,ELIBEXEC:83,ENOSYS:38,ENOTEMPTY:39,ENAMETOOLONG:36,ELOOP:40,EOPNOTSUPP:95,EPFNOSUPPORT:96,ECONNRESET:104,ENOBUFS:105,EAFNOSUPPORT:97,EPROTOTYPE:91,ENOTSOCK:88,ENOPROTOOPT:92,ESHUTDOWN:108,ECONNREFUSED:111,EADDRINUSE:98,ECONNABORTED:103,ENETUNREACH:101,ENETDOWN:100,ETIMEDOUT:110,EHOSTDOWN:112,EHOSTUNREACH:113,EINPROGRESS:115,EALREADY:114,EDESTADDRREQ:89,EMSGSIZE:90,EPROTONOSUPPORT:93,ESOCKTNOSUPPORT:94,EADDRNOTAVAIL:99,ENETRESET:102,EISCONN:106,ENOTCONN:107,ETOOMANYREFS:109,EUSERS:87,EDQUOT:122,ESTALE:116,ENOTSUP:95,ENOMEDIUM:123,EILSEQ:84,EOVERFLOW:75,ECANCELED:125,ENOTRECOVERABLE:131,EOWNERDEAD:130,ESTRPIPE:86};
    
    var ERRNO_MESSAGES={0:"Success",1:"Not super-user",2:"No such file or directory",3:"No such process",4:"Interrupted system call",5:"I/O error",6:"No such device or address",7:"Arg list too long",8:"Exec format error",9:"Bad file number",10:"No children",11:"No more processes",12:"Not enough core",13:"Permission denied",14:"Bad address",15:"Block device required",16:"Mount device busy",17:"File exists",18:"Cross-device link",19:"No such device",20:"Not a directory",21:"Is a directory",22:"Invalid argument",23:"Too many open files in system",24:"Too many open files",25:"Not a typewriter",26:"Text file busy",27:"File too large",28:"No space left on device",29:"Illegal seek",30:"Read only file system",31:"Too many links",32:"Broken pipe",33:"Math arg out of domain of func",34:"Math result not representable",35:"File locking deadlock error",36:"File or path name too long",37:"No record locks available",38:"Function not implemented",39:"Directory not empty",40:"Too many symbolic links",42:"No message of desired type",43:"Identifier removed",44:"Channel number out of range",45:"Level 2 not synchronized",46:"Level 3 halted",47:"Level 3 reset",48:"Link number out of range",49:"Protocol driver not attached",50:"No CSI structure available",51:"Level 2 halted",52:"Invalid exchange",53:"Invalid request descriptor",54:"Exchange full",55:"No anode",56:"Invalid request code",57:"Invalid slot",59:"Bad font file fmt",60:"Device not a stream",61:"No data (for no delay io)",62:"Timer expired",63:"Out of streams resources",64:"Machine is not on the network",65:"Package not installed",66:"The object is remote",67:"The link has been severed",68:"Advertise error",69:"Srmount error",70:"Communication error on send",71:"Protocol error",72:"Multihop attempted",73:"Cross mount point (not really error)",74:"Trying to read unreadable message",75:"Value too large for defined data type",76:"Given log. name not unique",77:"f.d. invalid for this operation",78:"Remote address changed",79:"Can   access a needed shared lib",80:"Accessing a corrupted shared lib",81:".lib section in a.out corrupted",82:"Attempting to link in too many libs",83:"Attempting to exec a shared library",84:"Illegal byte sequence",86:"Streams pipe error",87:"Too many users",88:"Socket operation on non-socket",89:"Destination address required",90:"Message too long",91:"Protocol wrong type for socket",92:"Protocol not available",93:"Unknown protocol",94:"Socket type not supported",95:"Not supported",96:"Protocol family not supported",97:"Address family not supported by protocol family",98:"Address already in use",99:"Address not available",100:"Network interface is not configured",101:"Network is unreachable",102:"Connection reset by network",103:"Connection aborted",104:"Connection reset by peer",105:"No buffer space available",106:"Socket is already connected",107:"Socket is not connected",108:"Can't send after socket shutdown",109:"Too many references",110:"Connection timed out",111:"Connection refused",112:"Host is down",113:"Host is unreachable",114:"Socket already connected",115:"Connection already in progress",116:"Stale file handle",122:"Quota exceeded",123:"No medium (in tape drive)",125:"Operation canceled",130:"Previous owner died",131:"State not recoverable"};
    
    
    var ___errno_state=0;function ___setErrNo(value) {
        // For convenient setting and returning of errno.
        HEAP32[((___errno_state)>>2)]=value;
        return value;
      }
    
    var PATH={splitPath:function (filename) {
          var splitPathRe = /^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;
          return splitPathRe.exec(filename).slice(1);
        },normalizeArray:function (parts, allowAboveRoot) {
          // 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);
        },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) {
              continue;
            }
            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.resolve(from).substr(1);
          to = PATH.resolve(to).substr(1);
          function trim(arr) {
            var start = 0;
            for (; start < arr.length; start++) {
              if (arr[start] !== '') break;
            }
            var end = arr.length - 1;
            for (; end >= 0; end--) {
              if (arr[end] !== '') break;
            }
            if (start > end) return [];
            return arr.slice(start, end - start + 1);
          }
          var fromParts = trim(from.split('/'));
          var toParts = trim(to.split('/'));
          var length = Math.min(fromParts.length, toParts.length);
          var samePartsLength = length;
          for (var i = 0; i < length; i++) {
            if (fromParts[i] !== toParts[i]) {
              samePartsLength = i;
              break;
            }
          }
          var outputParts = [];
          for (var i = samePartsLength; i < fromParts.length; i++) {
            outputParts.push('..');
          }
          outputParts = outputParts.concat(toParts.slice(samePartsLength));
          return outputParts.join('/');
        }};
    
    var TTY={ttys:[],init:function () {
          // https://github.com/kripken/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/kripken/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(ERRNO_CODES.ENODEV);
            }
            stream.tty = tty;
            stream.seekable = false;
          },close:function (stream) {
            // flush any pending line data
            if (stream.tty.output.length) {
              stream.tty.ops.put_char(stream.tty, 10);
            }
          },read:function (stream, buffer, offset, length, pos /* ignored */) {
            if (!stream.tty || !stream.tty.ops.get_char) {
              throw new FS.ErrnoError(ERRNO_CODES.ENXIO);
            }
            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(ERRNO_CODES.EIO);
              }
              if (result === undefined && bytesRead === 0) {
                throw new FS.ErrnoError(ERRNO_CODES.EAGAIN);
              }
              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(ERRNO_CODES.ENXIO);
            }
            for (var i = 0; i < length; i++) {
              try {
                stream.tty.ops.put_char(stream.tty, buffer[offset+i]);
              } catch (e) {
                throw new FS.ErrnoError(ERRNO_CODES.EIO);
              }
            }
            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) {
                result = process['stdin']['read']();
                if (!result) {
                  if (process['stdin']['_readableState'] && process['stdin']['_readableState']['ended']) {
                    return null;  // EOF
                  }
                  return undefined;  // no data available
                }
              } 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) {
              Module['print'](tty.output.join(''));
              tty.output = [];
            } else {
              tty.output.push(TTY.utf8.processCChar(val));
            }
          }},default_tty1_ops:{put_char:function (tty, val) {
            if (val === null || val === 10) {
              Module['printErr'](tty.output.join(''));
              tty.output = [];
            } else {
              tty.output.push(TTY.utf8.processCChar(val));
            }
          }}};
    
    var MEMFS={ops_table:null,CONTENT_OWNING:1,CONTENT_FLEXIBLE:2,CONTENT_FIXED:3,mount:function (mount) {
          return MEMFS.createNode(null, '/', 16384 | 0777, 0);
        },createNode:function (parent, name, mode, dev) {
          if (FS.isBlkdev(mode) || FS.isFIFO(mode)) {
            // no supported
            throw new FS.ErrnoError(ERRNO_CODES.EPERM);
          }
          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,
                  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
                }
              },
              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.contents = [];
            node.contentMode = MEMFS.CONTENT_FLEXIBLE;
          } 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;
        },ensureFlexible:function (node) {
          if (node.contentMode !== MEMFS.CONTENT_FLEXIBLE) {
            var contents = node.contents;
            node.contents = Array.prototype.slice.call(contents);
            node.contentMode = MEMFS.CONTENT_FLEXIBLE;
          }
        },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.contents.length;
            } 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.ensureFlexible(node);
              var contents = node.contents;
              if (attr.size < contents.length) contents.length = attr.size;
              else while (attr.size > contents.length) contents.push(0);
            }
          },lookup:function (parent, name) {
            throw FS.genericErrors[ERRNO_CODES.ENOENT];
          },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(ERRNO_CODES.ENOTEMPTY);
                }
              }
            }
            // 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(ERRNO_CODES.ENOTEMPTY);
            }
            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, 0777 | 40960, 0);
            node.link = oldpath;
            return node;
          },readlink:function (node) {
            if (!FS.isLink(node.mode)) {
              throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
            }
            return node.link;
          }},stream_ops:{read:function (stream, buffer, offset, length, position) {
            var contents = stream.node.contents;
            if (position >= contents.length)
              return 0;
            var size = Math.min(contents.length - position, length);
            assert(size >= 0);
            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) {
            var node = stream.node;
            node.timestamp = Date.now();
            var contents = node.contents;
            if (length && contents.length === 0 && position === 0 && buffer.subarray) {
              // just replace it with the new data
              if (canOwn && offset === 0) {
                node.contents = buffer; // this could be a subarray of Emscripten HEAP, or allocated from some other source.
                node.contentMode = (buffer.buffer === HEAP8.buffer) ? MEMFS.CONTENT_OWNING : MEMFS.CONTENT_FIXED;
              } else {
                node.contents = new Uint8Array(buffer.subarray(offset, offset+length));
                node.contentMode = MEMFS.CONTENT_FIXED;
              }
              return length;
            }
            MEMFS.ensureFlexible(node);
            var contents = node.contents;
            while (contents.length < position) contents.push(0);
            for (var i = 0; i < length; i++) {
              contents[position + i] = buffer[offset + i];
            }
            return length;
          },llseek:function (stream, offset, whence) {
            var position = offset;
            if (whence === 1) {  // SEEK_CUR.
              position += stream.position;
            } else if (whence === 2) {  // SEEK_END.
              if (FS.isFile(stream.node.mode)) {
                position += stream.node.contents.length;
              }
            }
            if (position < 0) {
              throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
            }
            stream.ungotten = [];
            stream.position = position;
            return position;
          },allocate:function (stream, offset, length) {
            MEMFS.ensureFlexible(stream.node);
            var contents = stream.node.contents;
            var limit = offset + length;
            while (limit > contents.length) contents.push(0);
          },mmap:function (stream, buffer, offset, length, position, prot, flags) {
            if (!FS.isFile(stream.node.mode)) {
              throw new FS.ErrnoError(ERRNO_CODES.ENODEV);
            }
            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 || 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 < contents.length) {
                if (contents.subarray) {
                  contents = contents.subarray(position, position + length);
                } else {
                  contents = Array.prototype.slice.call(contents, position, position + length);
                }
              }
              allocated = true;
              ptr = _malloc(length);
              if (!ptr) {
                throw new FS.ErrnoError(ERRNO_CODES.ENOMEM);
              }
              buffer.set(contents, ptr);
            }
            return { ptr: ptr, allocated: allocated };
          }}};
    
    var IDBFS={dbs:{},indexedDB:function () {
          return window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
        },DB_VERSION:21,DB_STORE_NAME:"FILE_DATA",mount:function (mount) {
          // reuse all of the core MEMFS functionality
          return MEMFS.mount.apply(null, arguments);
        },syncfs:function (mount, populate, callback) {
          IDBFS.getLocalSet(mount, function(err, local) {
            if (err) return callback(err);
    
            IDBFS.getRemoteSet(mount, function(err, remote) {
              if (err) return callback(err);
    
              var src = populate ? remote : local;
              var dst = populate ? local : remote;
    
              IDBFS.reconcile(src, dst, callback);
            });
          });
        },getDB:function (name, callback) {
          // check the cache first
          var db = IDBFS.dbs[name];
          if (db) {
            return callback(null, db);
          }
    
          var req;
          try {
            req = IDBFS.indexedDB().open(name, IDBFS.DB_VERSION);
          } catch (e) {
            return callback(e);
          }
          req.onupgradeneeded = function(e) {
            var db = e.target.result;
            var transaction = e.target.transaction;
    
            var fileStore;
    
            if (db.objectStoreNames.contains(IDBFS.DB_STORE_NAME)) {
              fileStore = transaction.objectStore(IDBFS.DB_STORE_NAME);
            } else {
              fileStore = db.createObjectStore(IDBFS.DB_STORE_NAME);
            }
    
            fileStore.createIndex('timestamp', 'timestamp', { unique: false });
          };
          req.onsuccess = function() {
            db = req.result;
    
            // add to the cache
            IDBFS.dbs[name] = db;
            callback(null, db);
          };
          req.onerror = function() {
            callback(this.error);
          };
        },getLocalSet:function (mount, callback) {
          var entries = {};
    
          function isRealDir(p) {
            return p !== '.' && p !== '..';
          };
          function toAbsolute(root) {
            return function(p) {
              return PATH.join2(root, p);
            }
          };
    
          var check = FS.readdir(mount.mountpoint).filter(isRealDir).map(toAbsolute(mount.mountpoint));
    
          while (check.length) {
            var path = check.pop();
            var stat;
    
            try {
              stat = FS.stat(path);
            } catch (e) {
              return callback(e);
            }
    
            if (FS.isDir(stat.mode)) {
              check.push.apply(check, FS.readdir(path).filter(isRealDir).map(toAbsolute(path)));
            }
    
            entries[path] = { timestamp: stat.mtime };
          }
    
          return callback(null, { type: 'local', entries: entries });
        },getRemoteSet:function (mount, callback) {
          var entries = {};
    
          IDBFS.getDB(mount.mountpoint, function(err, db) {
            if (err) return callback(err);
    
            var transaction = db.transaction([IDBFS.DB_STORE_NAME], 'readonly');
            transaction.onerror = function() { callback(this.error); };
    
            var store = transaction.objectStore(IDBFS.DB_STORE_NAME);
            var index = store.index('timestamp');
    
            index.openKeyCursor().onsuccess = function(event) {
              var cursor = event.target.result;
    
              if (!cursor) {
                return callback(null, { type: 'remote', db: db, entries: entries });
              }
    
              entries[cursor.primaryKey] = { timestamp: cursor.key };
    
              cursor.continue();
            };
          });
        },loadLocalEntry:function (path, callback) {
          var stat, node;
    
          try {
            var lookup = FS.lookupPath(path);
            node = lookup.node;
            stat = FS.stat(path);
          } catch (e) {
            return callback(e);
          }
    
          if (FS.isDir(stat.mode)) {
            return callback(null, { timestamp: stat.mtime, mode: stat.mode });
          } else if (FS.isFile(stat.mode)) {
            return callback(null, { timestamp: stat.mtime, mode: stat.mode, contents: node.contents });
          } else {
            return callback(new Error('node type not supported'));
          }
        },storeLocalEntry:function (path, entry, callback) {
          try {
            if (FS.isDir(entry.mode)) {
              FS.mkdir(path, entry.mode);
            } else if (FS.isFile(entry.mode)) {
              FS.writeFile(path, entry.contents, { encoding: 'binary', canOwn: true });
            } else {
              return callback(new Error('node type not supported'));
            }
    
            FS.utime(path, entry.timestamp, entry.timestamp);
          } catch (e) {
            return callback(e);
          }
    
          callback(null);
        },removeLocalEntry:function (path, callback) {
          try {
            var lookup = FS.lookupPath(path);
            var stat = FS.stat(path);
    
            if (FS.isDir(stat.mode)) {
              FS.rmdir(path);
            } else if (FS.isFile(stat.mode)) {
              FS.unlink(path);
            }
          } catch (e) {
            return callback(e);
          }
    
          callback(null);
        },loadRemoteEntry:function (store, path, callback) {
          var req = store.get(path);
          req.onsuccess = function(event) { callback(null, event.target.result); };
          req.onerror = function() { callback(this.error); };
        },storeRemoteEntry:function (store, path, entry, callback) {
          var req = store.put(entry, path);
          req.onsuccess = function() { callback(null); };
          req.onerror = function() { callback(this.error); };
        },removeRemoteEntry:function (store, path, callback) {
          var req = store.delete(path);
          req.onsuccess = function() { callback(null); };
          req.onerror = function() { callback(this.error); };
        },reconcile:function (src, dst, callback) {
          var total = 0;
    
          var create = [];
          Object.keys(src.entries).forEach(function (key) {
            var e = src.entries[key];
            var e2 = dst.entries[key];
            if (!e2 || e.timestamp > e2.timestamp) {
              create.push(key);
              total++;
            }
          });
    
          var remove = [];
          Object.keys(dst.entries).forEach(function (key) {
            var e = dst.entries[key];
            var e2 = src.entries[key];
            if (!e2) {
              remove.push(key);
              total++;
            }
          });
    
          if (!total) {
            return callback(null);
          }
    
          var errored = false;
          var completed = 0;
          var db = src.type === 'remote' ? src.db : dst.db;
          var transaction = db.transaction([IDBFS.DB_STORE_NAME], 'readwrite');
          var store = transaction.objectStore(IDBFS.DB_STORE_NAME);
    
          function done(err) {
            if (err) {
              if (!done.errored) {
                done.errored = true;
                return callback(err);
              }
              return;
            }
            if (++completed >= total) {
              return callback(null);
            }
          };
    
          transaction.onerror = function() { done(this.error); };
    
          // sort paths in ascending order so directory entries are created
          // before the files inside them
          create.sort().forEach(function (path) {
            if (dst.type === 'local') {
              IDBFS.loadRemoteEntry(store, path, function (err, entry) {
                if (err) return done(err);
                IDBFS.storeLocalEntry(path, entry, done);
              });
            } else {
              IDBFS.loadLocalEntry(path, function (err, entry) {
                if (err) return done(err);
                IDBFS.storeRemoteEntry(store, path, entry, done);
              });
            }
          });
    
          // sort paths in descending order so files are deleted before their
          // parent directories
          remove.sort().reverse().forEach(function(path) {
            if (dst.type === 'local') {
              IDBFS.removeLocalEntry(path, done);
            } else {
              IDBFS.removeRemoteEntry(store, path, done);
            }
          });
        }};
    
    var NODEFS={isWindows:false,staticInit:function () {
          NODEFS.isWindows = !!process.platform.match(/^win/);
        },mount:function (mount) {
          assert(ENVIRONMENT_IS_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(ERRNO_CODES.EINVAL);
          }
          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) {
              // On Windows, directories return permission bits 'rw-rw-rw-', even though they have 'rwxrwxrwx', so 
              // propagate write bits to execute bits.
              stat.mode = stat.mode | ((stat.mode & 146) >> 1);
            }
          } catch (e) {
            if (!e.code) throw e;
            throw new FS.ErrnoError(ERRNO_CODES[e.code]);
          }
          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);
        },flagsToPermissionStringMap:{0:"r",1:"r+",2:"r+",64:"r",65:"r+",66:"r+",129:"rx+",193:"rx+",514:"w+",577:"w",578:"w+",705:"wx",706:"wx+",1024:"a",1025:"a",1026:"a+",1089:"a",1090:"a+",1153:"ax",1154:"ax+",1217:"ax",1218:"ax+",4096:"rs",4098:"rs+"},flagsToPermissionString:function (flags) {
          if (flags in NODEFS.flagsToPermissionStringMap) {
            return NODEFS.flagsToPermissionStringMap[flags];
          } else {
            return flags;
          }
        },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(ERRNO_CODES[e.code]);
            }
            // 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(ERRNO_CODES[e.code]);
            }
          },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(ERRNO_CODES[e.code]);
            }
            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(ERRNO_CODES[e.code]);
            }
          },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(ERRNO_CODES[e.code]);
            }
          },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(ERRNO_CODES[e.code]);
            }
          },readdir:function (node) {
            var path = NODEFS.realPath(node);
            try {
              return fs.readdirSync(path);
            } catch (e) {
              if (!e.code) throw e;
              throw new FS.ErrnoError(ERRNO_CODES[e.code]);
            }
          },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(ERRNO_CODES[e.code]);
            }
          },readlink:function (node) {
            var path = NODEFS.realPath(node);
            try {
              return fs.readlinkSync(path);
            } catch (e) {
              if (!e.code) throw e;
              throw new FS.ErrnoError(ERRNO_CODES[e.code]);
            }
          }},stream_ops:{open:function (stream) {
            var path = NODEFS.realPath(stream.node);
            try {
              if (FS.isFile(stream.node.mode)) {
                stream.nfd = fs.openSync(path, NODEFS.flagsToPermissionString(stream.flags));
              }
            } catch (e) {
              if (!e.code) throw e;
              throw new FS.ErrnoError(ERRNO_CODES[e.code]);
            }
          },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(ERRNO_CODES[e.code]);
            }
          },read:function (stream, buffer, offset, length, position) {
            // FIXME this is terrible.
            var nbuffer = new Buffer(length);
            var res;
            try {
              res = fs.readSync(stream.nfd, nbuffer, 0, length, position);
            } catch (e) {
              throw new FS.ErrnoError(ERRNO_CODES[e.code]);
            }
            if (res > 0) {
              for (var i = 0; i < res; i++) {
                buffer[offset + i] = nbuffer[i];
              }
            }
            return res;
          },write:function (stream, buffer, offset, length, position) {
            // FIXME this is terrible.
            var nbuffer = new Buffer(buffer.subarray(offset, offset + length));
            var res;
            try {
              res = fs.writeSync(stream.nfd, nbuffer, 0, length, position);
            } catch (e) {
              throw new FS.ErrnoError(ERRNO_CODES[e.code]);
            }
            return res;
          },llseek:function (stream, offset, whence) {
            var position = offset;
            if (whence === 1) {  // SEEK_CUR.
              position += stream.position;
            } else if (whence === 2) {  // SEEK_END.
              if (FS.isFile(stream.node.mode)) {
                try {
                  var stat = fs.fstatSync(stream.nfd);
                  position += stat.size;
                } catch (e) {
                  throw new FS.ErrnoError(ERRNO_CODES[e.code]);
                }
              }
            }
    
            if (position < 0) {
              throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
            }
    
            stream.position = position;
            return position;
          }}};
    
    var _stdin=allocate(1, "i32*", ALLOC_STATIC);
    
    var _stdout=allocate(1, "i32*", ALLOC_STATIC);
    
    var _stderr=allocate(1, "i32*", ALLOC_STATIC);
    
    function _fflush(stream) {
        // int fflush(FILE *stream);
        // http://pubs.opengroup.org/onlinepubs/000095399/functions/fflush.html
        // we don't currently perform any user-space buffering of data
      }var FS={root:null,mounts:[],devices:[null],streams:[],nextInode:1,nameTable:null,currentPath:"/",initialized:false,ignorePermissions:true,ErrnoError:null,genericErrors:{},handleFSError:function (e) {
          if (!(e instanceof FS.ErrnoError)) throw e + ' : ' + stackTrace();
          return ___setErrNo(e.errno);
        },lookupPath:function (path, opts) {
          path = PATH.resolve(FS.cwd(), path);
          opts = opts || {};
    
          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(ERRNO_CODES.ELOOP);
          }
    
          // 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.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(ERRNO_CODES.ELOOP);
                }
              }
            }
          }
    
          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);
          }
          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 accmode = flag & 2097155;
          var perms = ['r', 'w', 'rw'][accmode];
          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 ERRNO_CODES.EACCES;
          } else if (perms.indexOf('w') !== -1 && !(node.mode & 146)) {
            return ERRNO_CODES.EACCES;
          } else if (perms.indexOf('x') !== -1 && !(node.mode & 73)) {
            return ERRNO_CODES.EACCES;
          }
          return 0;
        },mayLookup:function (dir) {
          return FS.nodePermissions(dir, 'x');
        },mayCreate:function (dir, name) {
          try {
            var node = FS.lookupNode(dir, name);
            return ERRNO_CODES.EEXIST;
          } 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 ERRNO_CODES.ENOTDIR;
            }
            if (FS.isRoot(node) || FS.getPath(node) === FS.cwd()) {
              return ERRNO_CODES.EBUSY;
            }
          } else {
            if (FS.isDir(node.mode)) {
              return ERRNO_CODES.EISDIR;
            }
          }
          return 0;
        },mayOpen:function (node, flags) {
          if (!node) {
            return ERRNO_CODES.ENOENT;
          }
          if (FS.isLink(node.mode)) {
            return ERRNO_CODES.ELOOP;
          } else if (FS.isDir(node.mode)) {
            if ((flags & 2097155) !== 0 ||  // opening for write
                (flags & 512)) {
              return ERRNO_CODES.EISDIR;
            }
          }
          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(ERRNO_CODES.EMFILE);
        },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); }
              }
            });
          }
          if (stream.__proto__) {
            // reuse the object
            stream.__proto__ = FS.FSStream.prototype;
          } else {
            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;
        },getStreamFromPtr:function (ptr) {
          return FS.streams[ptr - 1];
        },getPtrForStream:function (stream) {
          return stream ? stream.fd + 1 : 0;
        },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(ERRNO_CODES.ESPIPE);
          }},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;
          }
    
          var mounts = FS.getMounts(FS.root.mount);
          var completed = 0;
    
          function done(err) {
            if (err) {
              if (!done.errored) {
                done.errored = true;
                return callback(err);
              }
              return;
            }
            if (++completed >= mounts.length) {
              callback(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(ERRNO_CODES.EBUSY);
          } 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(ERRNO_CODES.EBUSY);
            }
    
            if (!FS.isDir(node.mode)) {
              throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR);
            }
          }
    
          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(ERRNO_CODES.EINVAL);
          }
    
          // 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);
          assert(idx !== -1);
          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);
          var err = FS.mayCreate(parent, name);
          if (err) {
            throw new FS.ErrnoError(err);
          }
          if (!parent.node_ops.mknod) {
            throw new FS.ErrnoError(ERRNO_CODES.EPERM);
          }
          return parent.node_ops.mknod(parent, name, mode, dev);
        },create:function (path, mode) {
          mode = mode !== undefined ? mode : 0666;
          mode &= 4095;
          mode |= 32768;
          return FS.mknod(path, mode, 0);
        },mkdir:function (path, mode) {
          mode = mode !== undefined ? mode : 0777;
          mode &= 511 | 512;
          mode |= 16384;
          return FS.mknod(path, mode, 0);
        },mkdev:function (path, mode, dev) {
          if (typeof(dev) === 'undefined') {
            dev = mode;
            mode = 0666;
          }
          mode |= 8192;
          return FS.mknod(path, mode, dev);
        },symlink:function (oldpath, newpath) {
          var lookup = FS.lookupPath(newpath, { parent: true });
          var parent = lookup.node;
          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(ERRNO_CODES.EPERM);
          }
          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(ERRNO_CODES.EBUSY);
          }
          // need to be part of the same mount
          if (old_dir.mount !== new_dir.mount) {
            throw new FS.ErrnoError(ERRNO_CODES.EXDEV);
          }
          // 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.relative(old_path, new_dirname);
          if (relative.charAt(0) !== '.') {
            throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
          }
          // new path should not be an ancestor of the old path
          relative = PATH.relative(new_path, old_dirname);
          if (relative.charAt(0) !== '.') {
            throw new FS.ErrnoError(ERRNO_CODES.ENOTEMPTY);
          }
          // 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(ERRNO_CODES.EPERM);
          }
          if (FS.isMountpoint(old_node) || (new_node && FS.isMountpoint(new_node))) {
            throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
          }
          // 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);
            }
          }
          // 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);
          }
        },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(ERRNO_CODES.EPERM);
          }
          if (FS.isMountpoint(node)) {
            throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
          }
          parent.node_ops.rmdir(parent, name);
          FS.destroyNode(node);
        },readdir:function (path) {
          var lookup = FS.lookupPath(path, { follow: true });
          var node = lookup.node;
          if (!node.node_ops.readdir) {
            throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR);
          }
          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) {
            // POSIX says unlink should set EPERM, not EISDIR
            if (err === ERRNO_CODES.EISDIR) err = ERRNO_CODES.EPERM;
            throw new FS.ErrnoError(err);
          }
          if (!parent.node_ops.unlink) {
            throw new FS.ErrnoError(ERRNO_CODES.EPERM);
          }
          if (FS.isMountpoint(node)) {
            throw new FS.ErrnoError(ERRNO_CODES.EBUSY);
          }
          parent.node_ops.unlink(parent, name);
          FS.destroyNode(node);
        },readlink:function (path) {
          var lookup = FS.lookupPath(path);
          var link = lookup.node;
          if (!link.node_ops.readlink) {
            throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
          }
          return link.node_ops.readlink(link);
        },stat:function (path, dontFollow) {
          var lookup = FS.lookupPath(path, { follow: !dontFollow });
          var node = lookup.node;
          if (!node.node_ops.getattr) {
            throw new FS.ErrnoError(ERRNO_CODES.EPERM);
          }
          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(ERRNO_CODES.EPERM);
          }
          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(ERRNO_CODES.EBADF);
          }
          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(ERRNO_CODES.EPERM);
          }
          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(ERRNO_CODES.EBADF);
          }
          FS.chown(stream.node, uid, gid);
        },truncate:function (path, len) {
          if (len < 0) {
            throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
          }
          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(ERRNO_CODES.EPERM);
          }
          if (FS.isDir(node.mode)) {
            throw new FS.ErrnoError(ERRNO_CODES.EISDIR);
          }
          if (!FS.isFile(node.mode)) {
            throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
          }
          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(ERRNO_CODES.EBADF);
          }
          if ((stream.flags & 2097155) === 0) {
            throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
          }
          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) {
          flags = typeof flags === 'string' ? FS.modeStringToFlags(flags) : flags;
          mode = typeof mode === 'undefined' ? 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
          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(ERRNO_CODES.EEXIST);
              }
            } else {
              // node doesn't exist, try to create it
              node = FS.mknod(path, mode, 0);
            }
          }
          if (!node) {
            throw new FS.ErrnoError(ERRNO_CODES.ENOENT);
          }
          // can't truncate a device
          if (FS.isChrdev(node.mode)) {
            flags &= ~512;
          }
          // check permissions
          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;
              Module['printErr']('read file: ' + path);
            }
          }
          return stream;
        },close:function (stream) {
          try {
            if (stream.stream_ops.close) {
              stream.stream_ops.close(stream);
            }
          } catch (e) {
            throw e;
          } finally {
            FS.closeStream(stream.fd);
          }
        },llseek:function (stream, offset, whence) {
          if (!stream.seekable || !stream.stream_ops.llseek) {
            throw new FS.ErrnoError(ERRNO_CODES.ESPIPE);
          }
          return stream.stream_ops.llseek(stream, offset, whence);
        },read:function (stream, buffer, offset, length, position) {
          if (length < 0 || position < 0) {
            throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
          }
          if ((stream.flags & 2097155) === 1) {
            throw new FS.ErrnoError(ERRNO_CODES.EBADF);
          }
          if (FS.isDir(stream.node.mode)) {
            throw new FS.ErrnoError(ERRNO_CODES.EISDIR);
          }
          if (!stream.stream_ops.read) {
            throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
          }
          var seeking = true;
          if (typeof position === 'undefined') {
            position = stream.position;
            seeking = false;
          } else if (!stream.seekable) {
            throw new FS.ErrnoError(ERRNO_CODES.ESPIPE);
          }
          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(ERRNO_CODES.EINVAL);
          }
          if ((stream.flags & 2097155) === 0) {
            throw new FS.ErrnoError(ERRNO_CODES.EBADF);
          }
          if (FS.isDir(stream.node.mode)) {
            throw new FS.ErrnoError(ERRNO_CODES.EISDIR);
          }
          if (!stream.stream_ops.write) {
            throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
          }
          var seeking = true;
          if (typeof position === 'undefined') {
            position = stream.position;
            seeking = false;
          } else if (!stream.seekable) {
            throw new FS.ErrnoError(ERRNO_CODES.ESPIPE);
          }
          if (stream.flags & 1024) {
            // seek to the end before writing in append mode
            FS.llseek(stream, 0, 2);
          }
          var bytesWritten = stream.stream_ops.write(stream, buffer, offset, length, position, canOwn);
          if (!seeking) stream.position += bytesWritten;
          return bytesWritten;
        },allocate:function (stream, offset, length) {
          if (offset < 0 || length <= 0) {
            throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
          }
          if ((stream.flags & 2097155) === 0) {
            throw new FS.ErrnoError(ERRNO_CODES.EBADF);
          }
          if (!FS.isFile(stream.node.mode) && !FS.isDir(node.mode)) {
            throw new FS.ErrnoError(ERRNO_CODES.ENODEV);
          }
          if (!stream.stream_ops.allocate) {
            throw new FS.ErrnoError(ERRNO_CODES.EOPNOTSUPP);
          }
          stream.stream_ops.allocate(stream, offset, length);
        },mmap:function (stream, buffer, offset, length, position, prot, flags) {
          // TODO if PROT is PROT_WRITE, make sure we have write access
          if ((stream.flags & 2097155) === 1) {
            throw new FS.ErrnoError(ERRNO_CODES.EACCES);
          }
          if (!stream.stream_ops.mmap) {
            throw new FS.ErrnoError(ERRNO_CODES.ENODEV);
          }
          return stream.stream_ops.mmap(stream, buffer, offset, length, position, prot, flags);
        },ioctl:function (stream, cmd, arg) {
          if (!stream.stream_ops.ioctl) {
            throw new FS.ErrnoError(ERRNO_CODES.ENOTTY);
          }
          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 = '';
            var utf8 = new Runtime.UTF8Processor();
            for (var i = 0; i < length; i++) {
              ret += utf8.processCChar(buf[i]);
            }
          } else if (opts.encoding === 'binary') {
            ret = buf;
          }
          FS.close(stream);
          return ret;
        },writeFile:function (path, data, opts) {
          opts = opts || {};
          opts.flags = opts.flags || 'w';
          opts.encoding = opts.encoding || 'utf8';
          if (opts.encoding !== 'utf8' && opts.encoding !== 'binary') {
            throw new Error('Invalid encoding type "' + opts.encoding + '"');
          }
          var stream = FS.open(path, opts.flags, opts.mode);
          if (opts.encoding === 'utf8') {
            var utf8 = new Runtime.UTF8Processor();
            var buf = new Uint8Array(utf8.processJSString(data));
            FS.write(stream, buf, 0, buf.length, 0, opts.canOwn);
          } else if (opts.encoding === 'binary') {
            FS.write(stream, data, 0, data.length, 0, opts.canOwn);
          }
          FS.close(stream);
        },cwd:function () {
          return FS.currentPath;
        },chdir:function (path) {
          var lookup = FS.lookupPath(path, { follow: true });
          if (!FS.isDir(lookup.node.mode)) {
            throw new FS.ErrnoError(ERRNO_CODES.ENOTDIR);
          }
          var err = FS.nodePermissions(lookup.node, 'x');
          if (err) {
            throw new FS.ErrnoError(err);
          }
          FS.currentPath = lookup.path;
        },createDefaultDirectories:function () {
          FS.mkdir('/tmp');
        },createDefaultDevices:function () {
          // create /dev
          FS.mkdir('/dev');
          // setup /dev/null
          FS.registerDevice(FS.makedev(1, 3), {
            read: function() { return 0; },
            write: function() { return 0; }
          });
          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));
          // 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');
        },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');
          HEAP32[((_stdin)>>2)]=FS.getPtrForStream(stdin);
          assert(stdin.fd === 0, 'invalid handle for stdin (' + stdin.fd + ')');
    
          var stdout = FS.open('/dev/stdout', 'w');
          HEAP32[((_stdout)>>2)]=FS.getPtrForStream(stdout);
          assert(stdout.fd === 1, 'invalid handle for stdout (' + stdout.fd + ')');
    
          var stderr = FS.open('/dev/stderr', 'w');
          HEAP32[((_stderr)>>2)]=FS.getPtrForStream(stderr);
          assert(stderr.fd === 2, 'invalid handle for stderr (' + stderr.fd + ')');
        },ensureErrnoError:function () {
          if (FS.ErrnoError) return;
          FS.ErrnoError = function ErrnoError(errno) {
            this.errno = errno;
            for (var key in ERRNO_CODES) {
              if (ERRNO_CODES[key] === errno) {
                this.code = key;
                break;
              }
            }
            this.message = ERRNO_MESSAGES[errno];
          };
          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)
          [ERRNO_CODES.ENOENT].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();
        },init:function (input, output, error) {
          assert(!FS.init.initialized, 'FS.init was previously called. If you want to initialize later with custom parameters, remove any earlier calls (note that one is automatically added to the generated code)');
          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;
          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.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(ERRNO_CODES.EIO);
                }
                if (result === undefined && bytesRead === 0) {
                  throw new FS.ErrnoError(ERRNO_CODES.EAGAIN);
                }
                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(ERRNO_CODES.EIO);
                }
              }
              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 (Module['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(Module['read'](obj.url), true);
            } catch (e) {
              success = false;
            }
          } else {
            throw new Error('Cannot load without read() or XMLHttpRequest.');
          }
          if (!success) ___setErrNo(ERRNO_CODES.EIO);
          return success;
        },createLazyFile:function (parent, name, url, canRead, canWrite) {
          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';
            // 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 = Math.floor(idx / this.chunkSize);
              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 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];
                });
    
                this._length = datalength;
                this._chunkSize = chunkSize;
                this.lengthKnown = true;
            }
    
            var lazyArray = new LazyUint8Array();
            Object.defineProperty(lazyArray, "length", {
                get: function() {
                    if(!this.lengthKnown) {
                        this.cacheLength();
                    }
                    return this._length;
                }
            });
            Object.defineProperty(lazyArray, "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;
          }
          // 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(ERRNO_CODES.EIO);
              }
              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(ERRNO_CODES.EIO);
            }
            var contents = stream.node.contents;
            if (position >= contents.length)
              return 0;
            var size = Math.min(contents.length - position, length);
            assert(size >= 0);
            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) {
          Browser.init();
          // 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.resolve(PATH.join2(parent, name)) : parent;
          function processData(byteArray) {
            function finish(byteArray) {
              if (!dontCreateFile) {
                FS.createDataFile(parent, name, byteArray, canRead, canWrite, canOwn);
              }
              if (onload) onload();
              removeRunDependency('cp ' + fullname);
            }
            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('cp ' + fullname);
                });
                handled = true;
              }
            });
            if (!handled) finish(byteArray);
          }
          addRunDependency('cp ' + fullname);
          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;
        }};
    
    
    
    
    function _mkport() { throw 'TODO' }var SOCKFS={mount:function (mount) {
          return FS.createNode(null, '/', 16384 | 0777, 0);
        },createSocket:function (family, type, protocol) {
          var streaming = type == 1;
          if (protocol) {
            assert(streaming == (protocol == 6)); // if SOCK_STREAM, must be tcp
          }
    
          // create our internal socket structure
          var sock = {
            family: family,
            type: type,
            protocol: protocol,
            server: null,
            peers: {},
            pending: [],
            recv_queue: [],
            sock_ops: SOCKFS.websocket_sock_ops
          };
    
          // create the filesystem node to store the socket structure
          var name = SOCKFS.nextname();
          var node = FS.createNode(SOCKFS.root, name, 49152, 0);
          node.sock = sock;
    
          // and the wrapping stream that enables library functions such
          // as read and write to indirectly interact with the socket
          var stream = FS.createStream({
            path: name,
            node: node,
            flags: FS.modeStringToFlags('r+'),
            seekable: false,
            stream_ops: SOCKFS.stream_ops
          });
    
          // map the new stream to the socket structure (sockets have a 1:1
          // relationship with a stream)
          sock.stream = stream;
    
          return sock;
        },getSocket:function (fd) {
          var stream = FS.getStream(fd);
          if (!stream || !FS.isSocket(stream.node.mode)) {
            return null;
          }
          return stream.node.sock;
        },stream_ops:{poll:function (stream) {
            var sock = stream.node.sock;
            return sock.sock_ops.poll(sock);
          },ioctl:function (stream, request, varargs) {
            var sock = stream.node.sock;
            return sock.sock_ops.ioctl(sock, request, varargs);
          },read:function (stream, buffer, offset, length, position /* ignored */) {
            var sock = stream.node.sock;
            var msg = sock.sock_ops.recvmsg(sock, length);
            if (!msg) {
              // socket is closed
              return 0;
            }
            buffer.set(msg.buffer, offset);
            return msg.buffer.length;
          },write:function (stream, buffer, offset, length, position /* ignored */) {
            var sock = stream.node.sock;
            return sock.sock_ops.sendmsg(sock, buffer, offset, length);
          },close:function (stream) {
            var sock = stream.node.sock;
            sock.sock_ops.close(sock);
          }},nextname:function () {
          if (!SOCKFS.nextname.current) {
            SOCKFS.nextname.current = 0;
          }
          return 'socket[' + (SOCKFS.nextname.current++) + ']';
        },websocket_sock_ops:{createPeer:function (sock, addr, port) {
            var ws;
    
            if (typeof addr === 'object') {
              ws = addr;
              addr = null;
              port = null;
            }
    
            if (ws) {
              // for sockets that've already connected (e.g. we're the server)
              // we can inspect the _socket property for the address
              if (ws._socket) {
                addr = ws._socket.remoteAddress;
                port = ws._socket.remotePort;
              }
              // if we're just now initializing a connection to the remote,
              // inspect the url property
              else {
                var result = /ws[s]?:\/\/([^:]+):(\d+)/.exec(ws.url);
                if (!result) {
                  throw new Error('WebSocket URL must be in the format ws(s)://address:port');
                }
                addr = result[1];
                port = parseInt(result[2], 10);
              }
            } else {
              // create the actual websocket object and connect
              try {
                var url = 'ws://' + addr + ':' + port;
                // the node ws library API is slightly different than the browser's
                var opts = ENVIRONMENT_IS_NODE ? {headers: {'websocket-protocol': ['binary']}} : ['binary'];
                // If node we use the ws library.
                var WebSocket = ENVIRONMENT_IS_NODE ? require('ws') : window['WebSocket'];
                ws = new WebSocket(url, opts);
                ws.binaryType = 'arraybuffer';
              } catch (e) {
                throw new FS.ErrnoError(ERRNO_CODES.EHOSTUNREACH);
              }
            }
    
    
            var peer = {
              addr: addr,
              port: port,
              socket: ws,
              dgram_send_queue: []
            };
    
            SOCKFS.websocket_sock_ops.addPeer(sock, peer);
            SOCKFS.websocket_sock_ops.handlePeerEvents(sock, peer);
    
            // if this is a bound dgram socket, send the port number first to allow
            // us to override the ephemeral port reported to us by remotePort on the
            // remote end.
            if (sock.type === 2 && typeof sock.sport !== 'undefined') {
              peer.dgram_send_queue.push(new Uint8Array([
                  255, 255, 255, 255,
                  'p'.charCodeAt(0), 'o'.charCodeAt(0), 'r'.charCodeAt(0), 't'.charCodeAt(0),
                  ((sock.sport & 0xff00) >> 8) , (sock.sport & 0xff)
              ]));
            }
    
            return peer;
          },getPeer:function (sock, addr, port) {
            return sock.peers[addr + ':' + port];
          },addPeer:function (sock, peer) {
            sock.peers[peer.addr + ':' + peer.port] = peer;
          },removePeer:function (sock, peer) {
            delete sock.peers[peer.addr + ':' + peer.port];
          },handlePeerEvents:function (sock, peer) {
            var first = true;
    
            var handleOpen = function () {
              try {
                var queued = peer.dgram_send_queue.shift();
                while (queued) {
                  peer.socket.send(queued);
                  queued = peer.dgram_send_queue.shift();
                }
              } catch (e) {
                // not much we can do here in the way of proper error handling as we've already
                // lied and said this data was sent. shut it down.
                peer.socket.close();
              }
            };
    
            function handleMessage(data) {
              assert(typeof data !== 'string' && data.byteLength !== undefined);  // must receive an ArrayBuffer
              data = new Uint8Array(data);  // make a typed array view on the array buffer
    
    
              // if this is the port message, override the peer's port with it
              var wasfirst = first;
              first = false;
              if (wasfirst &&
                  data.length === 10 &&
                  data[0] === 255 && data[1] === 255 && data[2] === 255 && data[3] === 255 &&
                  data[4] === 'p'.charCodeAt(0) && data[5] === 'o'.charCodeAt(0) && data[6] === 'r'.charCodeAt(0) && data[7] === 't'.charCodeAt(0)) {
                // update the peer's port and it's key in the peer map
                var newport = ((data[8] << 8) | data[9]);
                SOCKFS.websocket_sock_ops.removePeer(sock, peer);
                peer.port = newport;
                SOCKFS.websocket_sock_ops.addPeer(sock, peer);
                return;
              }
    
              sock.recv_queue.push({ addr: peer.addr, port: peer.port, data: data });
            };
    
            if (ENVIRONMENT_IS_NODE) {
              peer.socket.on('open', handleOpen);
              peer.socket.on('message', function(data, flags) {
                if (!flags.binary) {
                  return;
                }
                handleMessage((new Uint8Array(data)).buffer);  // copy from node Buffer -> ArrayBuffer
              });
              peer.socket.on('error', function() {
                // don't throw
              });
            } else {
              peer.socket.onopen = handleOpen;
              peer.socket.onmessage = function peer_socket_onmessage(event) {
                handleMessage(event.data);
              };
            }
          },poll:function (sock) {
            if (sock.type === 1 && sock.server) {
              // listen sockets should only say they're available for reading
              // if there are pending clients.
              return sock.pending.length ? (64 | 1) : 0;
            }
    
            var mask = 0;
            var dest = sock.type === 1 ?  // we only care about the socket state for connection-based sockets
              SOCKFS.websocket_sock_ops.getPeer(sock, sock.daddr, sock.dport) :
              null;
    
            if (sock.recv_queue.length ||
                !dest ||  // connection-less sockets are always ready to read
                (dest && dest.socket.readyState === dest.socket.CLOSING) ||
                (dest && dest.socket.readyState === dest.socket.CLOSED)) {  // let recv return 0 once closed
              mask |= (64 | 1);
            }
    
            if (!dest ||  // connection-less sockets are always ready to write
                (dest && dest.socket.readyState === dest.socket.OPEN)) {
              mask |= 4;
            }
    
            if ((dest && dest.socket.readyState === dest.socket.CLOSING) ||
                (dest && dest.socket.readyState === dest.socket.CLOSED)) {
              mask |= 16;
            }
    
            return mask;
          },ioctl:function (sock, request, arg) {
            switch (request) {
              case 21531:
                var bytes = 0;
                if (sock.recv_queue.length) {
                  bytes = sock.recv_queue[0].data.length;
                }
                HEAP32[((arg)>>2)]=bytes;
                return 0;
              default:
                return ERRNO_CODES.EINVAL;
            }
          },close:function (sock) {
            // if we've spawned a listen server, close it
            if (sock.server) {
              try {
                sock.server.close();
              } catch (e) {
              }
              sock.server = null;
            }
            // close any peer connections
            var peers = Object.keys(sock.peers);
            for (var i = 0; i < peers.length; i++) {
              var peer = sock.peers[peers[i]];
              try {
                peer.socket.close();
              } catch (e) {
              }
              SOCKFS.websocket_sock_ops.removePeer(sock, peer);
            }
            return 0;
          },bind:function (sock, addr, port) {
            if (typeof sock.saddr !== 'undefined' || typeof sock.sport !== 'undefined') {
              throw new FS.ErrnoError(ERRNO_CODES.EINVAL);  // already bound
            }
            sock.saddr = addr;
            sock.sport = port || _mkport();
            // in order to emulate dgram sockets, we need to launch a listen server when
            // binding on a connection-less socket
            // note: this is only required on the server side
            if (sock.type === 2) {
              // close the existing server if it exists
              if (sock.server) {
                sock.server.close();
                sock.server = null;
              }
              // swallow error operation not supported error that occurs when binding in the
              // browser where this isn't supported
              try {
                sock.sock_ops.listen(sock, 0);
              } catch (e) {
                if (!(e instanceof FS.ErrnoError)) throw e;
                if (e.errno !== ERRNO_CODES.EOPNOTSUPP) throw e;
              }
            }
          },connect:function (sock, addr, port) {
            if (sock.server) {
              throw new FS.ErrnoError(ERRNO_CODS.EOPNOTSUPP);
            }
    
            // TODO autobind
            // if (!sock.addr && sock.type == 2) {
            // }
    
            // early out if we're already connected / in the middle of connecting
            if (typeof sock.daddr !== 'undefined' && typeof sock.dport !== 'undefined') {
              var dest = SOCKFS.websocket_sock_ops.getPeer(sock, sock.daddr, sock.dport);
              if (dest) {
                if (dest.socket.readyState === dest.socket.CONNECTING) {
                  throw new FS.ErrnoError(ERRNO_CODES.EALREADY);
                } else {
                  throw new FS.ErrnoError(ERRNO_CODES.EISCONN);
                }
              }
            }
    
            // add the socket to our peer list and set our
            // destination address / port to match
            var peer = SOCKFS.websocket_sock_ops.createPeer(sock, addr, port);
            sock.daddr = peer.addr;
            sock.dport = peer.port;
    
            // always "fail" in non-blocking mode
            throw new FS.ErrnoError(ERRNO_CODES.EINPROGRESS);
          },listen:function (sock, backlog) {
            if (!ENVIRONMENT_IS_NODE) {
              throw new FS.ErrnoError(ERRNO_CODES.EOPNOTSUPP);
            }
            if (sock.server) {
               throw new FS.ErrnoError(ERRNO_CODES.EINVAL);  // already listening
            }
            var WebSocketServer = require('ws').Server;
            var host = sock.saddr;
            sock.server = new WebSocketServer({
              host: host,
              port: sock.sport
              // TODO support backlog
            });
    
            sock.server.on('connection', function(ws) {
              if (sock.type === 1) {
                var newsock = SOCKFS.createSocket(sock.family, sock.type, sock.protocol);
    
                // create a peer on the new socket
                var peer = SOCKFS.websocket_sock_ops.createPeer(newsock, ws);
                newsock.daddr = peer.addr;
                newsock.dport = peer.port;
    
                // push to queue for accept to pick up
                sock.pending.push(newsock);
              } else {
                // create a peer on the listen socket so calling sendto
                // with the listen socket and an address will resolve
                // to the correct client
                SOCKFS.websocket_sock_ops.createPeer(sock, ws);
              }
            });
            sock.server.on('closed', function() {
              sock.server = null;
            });
            sock.server.on('error', function() {
              // don't throw
            });
          },accept:function (listensock) {
            if (!listensock.server) {
              throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
            }
            var newsock = listensock.pending.shift();
            newsock.stream.flags = listensock.stream.flags;
            return newsock;
          },getname:function (sock, peer) {
            var addr, port;
            if (peer) {
              if (sock.daddr === undefined || sock.dport === undefined) {
                throw new FS.ErrnoError(ERRNO_CODES.ENOTCONN);
              }
              addr = sock.daddr;
              port = sock.dport;
            } else {
              // TODO saddr and sport will be set for bind()'d UDP sockets, but what
              // should we be returning for TCP sockets that've been connect()'d?
              addr = sock.saddr || 0;
              port = sock.sport || 0;
            }
            return { addr: addr, port: port };
          },sendmsg:function (sock, buffer, offset, length, addr, port) {
            if (sock.type === 2) {
              // connection-less sockets will honor the message address,
              // and otherwise fall back to the bound destination address
              if (addr === undefined || port === undefined) {
                addr = sock.daddr;
                port = sock.dport;
              }
              // if there was no address to fall back to, error out
              if (addr === undefined || port === undefined) {
                throw new FS.ErrnoError(ERRNO_CODES.EDESTADDRREQ);
              }
            } else {
              // connection-based sockets will only use the bound
              addr = sock.daddr;
              port = sock.dport;
            }
    
            // find the peer for the destination address
            var dest = SOCKFS.websocket_sock_ops.getPeer(sock, addr, port);
    
            // early out if not connected with a connection-based socket
            if (sock.type === 1) {
              if (!dest || dest.socket.readyState === dest.socket.CLOSING || dest.socket.readyState === dest.socket.CLOSED) {
                throw new FS.ErrnoError(ERRNO_CODES.ENOTCONN);
              } else if (dest.socket.readyState === dest.socket.CONNECTING) {
                throw new FS.ErrnoError(ERRNO_CODES.EAGAIN);
              }
            }
    
            // create a copy of the incoming data to send, as the WebSocket API
            // doesn't work entirely with an ArrayBufferView, it'll just send
            // the entire underlying buffer
            var data;
            if (buffer instanceof Array || buffer instanceof ArrayBuffer) {
              data = buffer.slice(offset, offset + length);
            } else {  // ArrayBufferView
              data = buffer.buffer.slice(buffer.byteOffset + offset, buffer.byteOffset + offset + length);
            }
    
            // if we're emulating a connection-less dgram socket and don't have
            // a cached connection, queue the buffer to send upon connect and
            // lie, saying the data was sent now.
            if (sock.type === 2) {
              if (!dest || dest.socket.readyState !== dest.socket.OPEN) {
                // if we're not connected, open a new connection
                if (!dest || dest.socket.readyState === dest.socket.CLOSING || dest.socket.readyState === dest.socket.CLOSED) {
                  dest = SOCKFS.websocket_sock_ops.createPeer(sock, addr, port);
                }
                dest.dgram_send_queue.push(data);
                return length;
              }
            }
    
            try {
              // send the actual data
              dest.socket.send(data);
              return length;
            } catch (e) {
              throw new FS.ErrnoError(ERRNO_CODES.EINVAL);
            }
          },recvmsg:function (sock, length) {
            // http://pubs.opengroup.org/onlinepubs/7908799/xns/recvmsg.html
            if (sock.type === 1 && sock.server) {
              // tcp servers should not be recv()'ing on the listen socket
              throw new FS.ErrnoError(ERRNO_CODES.ENOTCONN);
            }
    
            var queued = sock.recv_queue.shift();
            if (!queued) {
              if (sock.type === 1) {
                var dest = SOCKFS.websocket_sock_ops.getPeer(sock, sock.daddr, sock.dport);
    
                if (!dest) {
                  // if we have a destination address but are not connected, error out
                  throw new FS.ErrnoError(ERRNO_CODES.ENOTCONN);
                }
                else if (dest.socket.readyState === dest.socket.CLOSING || dest.socket.readyState === dest.socket.CLOSED) {
                  // return null if the socket has closed
                  return null;
                }
                else {
                  // else, our socket is in a valid state but truly has nothing available
                  throw new FS.ErrnoError(ERRNO_CODES.EAGAIN);
                }
              } else {
                throw new FS.ErrnoError(ERRNO_CODES.EAGAIN);
              }
            }
    
            // queued.data will be an ArrayBuffer if it's unadulterated, but if it's
            // requeued TCP data it'll be an ArrayBufferView
            var queuedLength = queued.data.byteLength || queued.data.length;
            var queuedOffset = queued.data.byteOffset || 0;
            var queuedBuffer = queued.data.buffer || queued.data;
            var bytesRead = Math.min(length, queuedLength);
            var res = {
              buffer: new Uint8Array(queuedBuffer, queuedOffset, bytesRead),
              addr: queued.addr,
              port: queued.port
            };
    
    
            // push back any unread data for TCP connections
            if (sock.type === 1 && bytesRead < queuedLength) {
              var bytesRemaining = queuedLength - bytesRead;
              queued.data = new Uint8Array(queuedBuffer, queuedOffset + bytesRead, bytesRemaining);
              sock.recv_queue.unshift(queued);
            }
    
            return res;
          }}};function _send(fd, buf, len, flags) {
        var sock = SOCKFS.getSocket(fd);
        if (!sock) {
          ___setErrNo(ERRNO_CODES.EBADF);
          return -1;
        }
        // TODO honor flags
        return _write(fd, buf, len);
      }
    
    function _pwrite(fildes, buf, nbyte, offset) {
        // ssize_t pwrite(int fildes, const void *buf, size_t nbyte, off_t offset);
        // http://pubs.opengroup.org/onlinepubs/000095399/functions/write.html
        var stream = FS.getStream(fildes);
        if (!stream) {
          ___setErrNo(ERRNO_CODES.EBADF);
          return -1;
        }
        try {
          var slab = HEAP8;
          return FS.write(stream, slab, buf, nbyte, offset);
        } catch (e) {
          FS.handleFSError(e);
          return -1;
        }
      }function _write(fildes, buf, nbyte) {
        // ssize_t write(int fildes, const void *buf, size_t nbyte);
        // http://pubs.opengroup.org/onlinepubs/000095399/functions/write.html
        var stream = FS.getStream(fildes);
        if (!stream) {
          ___setErrNo(ERRNO_CODES.EBADF);
          return -1;
        }
    
    
        try {
          var slab = HEAP8;
          return FS.write(stream, slab, buf, nbyte);
        } catch (e) {
          FS.handleFSError(e);
          return -1;
        }
      }
    
    function _fileno(stream) {
        // int fileno(FILE *stream);
        // http://pubs.opengroup.org/onlinepubs/000095399/functions/fileno.html
        return FS.getStreamFromPtr(stream).fd;
      }function _fwrite(ptr, size, nitems, stream) {
        // size_t fwrite(const void *restrict ptr, size_t size, size_t nitems, FILE *restrict stream);
        // http://pubs.opengroup.org/onlinepubs/000095399/functions/fwrite.html
        var bytesToWrite = nitems * size;
        if (bytesToWrite == 0) return 0;
        var fd = _fileno(stream);
        var bytesWritten = _write(fd, ptr, bytesToWrite);
        if (bytesWritten == -1) {
          var streamObj = FS.getStreamFromPtr(stream);
          if (streamObj) streamObj.error = true;
          return 0;
        } else {
          return Math.floor(bytesWritten / size);
        }
      }
    
    
     
    Module["_strlen"] = _strlen;
    
    function __reallyNegative(x) {
        return x < 0 || (x === 0 && (1/x) === -Infinity);
      }function __formatString(format, varargs) {
        var textIndex = format;
        var argIndex = 0;
        function getNextArg(type) {
          // NOTE: Explicitly ignoring type safety. Otherwise this fails:
          //       int x = 4; printf("%c\n", (char)x);
          var ret;
          if (type === 'double') {
            ret = HEAPF64[(((varargs)+(argIndex))>>3)];
          } else if (type == 'i64') {
            ret = [HEAP32[(((varargs)+(argIndex))>>2)],
                   HEAP32[(((varargs)+(argIndex+8))>>2)]];
            argIndex += 8; // each 32-bit chunk is in a 64-bit block
    
          } else {
            type = 'i32'; // varargs are always i32, i64, or double
            ret = HEAP32[(((varargs)+(argIndex))>>2)];
          }
          argIndex += Math.max(Runtime.getNativeFieldSize(type), Runtime.getAlignSize(type, null, true));
          return ret;
        }
    
        var ret = [];
        var curr, next, currArg;
        while(1) {
          var startTextIndex = textIndex;
          curr = HEAP8[(textIndex)];
          if (curr === 0) break;
          next = HEAP8[((textIndex+1)|0)];
          if (curr == 37) {
            // Handle flags.
            var flagAlwaysSigned = false;
            var flagLeftAlign = false;
            var flagAlternative = false;
            var flagZeroPad = false;
            var flagPadSign = false;
            flagsLoop: while (1) {
              switch (next) {
                case 43:
                  flagAlwaysSigned = true;
                  break;
                case 45:
                  flagLeftAlign = true;
                  break;
                case 35:
                  flagAlternative = true;
                  break;
                case 48:
                  if (flagZeroPad) {
                    break flagsLoop;
                  } else {
                    flagZeroPad = true;
                    break;
                  }
                case 32:
                  flagPadSign = true;
                  break;
                default:
                  break flagsLoop;
              }
              textIndex++;
              next = HEAP8[((textIndex+1)|0)];
            }
    
            // Handle width.
            var width = 0;
            if (next == 42) {
              width = getNextArg('i32');
              textIndex++;
              next = HEAP8[((textIndex+1)|0)];
            } else {
              while (next >= 48 && next <= 57) {
                width = width * 10 + (next - 48);
                textIndex++;
                next = HEAP8[((textIndex+1)|0)];
              }
            }
    
            // Handle precision.
            var precisionSet = false, precision = -1;
            if (next == 46) {
              precision = 0;
              precisionSet = true;
              textIndex++;
              next = HEAP8[((textIndex+1)|0)];
              if (next == 42) {
                precision = getNextArg('i32');
                textIndex++;
              } else {
                while(1) {
                  var precisionChr = HEAP8[((textIndex+1)|0)];
                  if (precisionChr < 48 ||
                      precisionChr > 57) break;
                  precision = precision * 10 + (precisionChr - 48);
                  textIndex++;
                }
              }
              next = HEAP8[((textIndex+1)|0)];
            }
            if (precision === -1) {
              precision = 6; // Standard default.
              precisionSet = false;
            }
    
            // Handle integer sizes. WARNING: These assume a 32-bit architecture!
            var argSize;
            switch (String.fromCharCode(next)) {
              case 'h':
                var nextNext = HEAP8[((textIndex+2)|0)];
                if (nextNext == 104) {
                  textIndex++;
                  argSize = 1; // char (actually i32 in varargs)
                } else {
                  argSize = 2; // short (actually i32 in varargs)
                }
                break;
              case 'l':
                var nextNext = HEAP8[((textIndex+2)|0)];
                if (nextNext == 108) {
                  textIndex++;
                  argSize = 8; // long long
                } else {
                  argSize = 4; // long
                }
                break;
              case 'L': // long long
              case 'q': // int64_t
              case 'j': // intmax_t
                argSize = 8;
                break;
              case 'z': // size_t
              case 't': // ptrdiff_t
              case 'I': // signed ptrdiff_t or unsigned size_t
                argSize = 4;
                break;
              default:
                argSize = null;
            }
            if (argSize) textIndex++;
            next = HEAP8[((textIndex+1)|0)];
    
            // Handle type specifier.
            switch (String.fromCharCode(next)) {
              case 'd': case 'i': case 'u': case 'o': case 'x': case 'X': case 'p': {
                // Integer.
                var signed = next == 100 || next == 105;
                argSize = argSize || 4;
                var currArg = getNextArg('i' + (argSize * 8));
                var origArg = currArg;
                var argText;
                // Flatten i64-1 [low, high] into a (slightly rounded) double
                if (argSize == 8) {
                  currArg = Runtime.makeBigInt(currArg[0], currArg[1], next == 117);
                }
                // Truncate to requested size.
                if (argSize <= 4) {
                  var limit = Math.pow(256, argSize) - 1;
                  currArg = (signed ? reSign : unSign)(currArg & limit, argSize * 8);
                }
                // Format the number.
                var currAbsArg = Math.abs(currArg);
                var prefix = '';
                if (next == 100 || next == 105) {
                  if (argSize == 8 && i64Math) argText = i64Math.stringify(origArg[0], origArg[1], null); else
                  argText = reSign(currArg, 8 * argSize, 1).toString(10);
                } else if (next == 117) {
                  if (argSize == 8 && i64Math) argText = i64Math.stringify(origArg[0], origArg[1], true); else
                  argText = unSign(currArg, 8 * argSize, 1).toString(10);
                  currArg = Math.abs(currArg);
                } else if (next == 111) {
                  argText = (flagAlternative ? '0' : '') + currAbsArg.toString(8);
                } else if (next == 120 || next == 88) {
                  prefix = (flagAlternative && currArg != 0) ? '0x' : '';
                  if (argSize == 8 && i64Math) {
                    if (origArg[1]) {
                      argText = (origArg[1]>>>0).toString(16);
                      var lower = (origArg[0]>>>0).toString(16);
                      while (lower.length < 8) lower = '0' + lower;
                      argText += lower;
                    } else {
                      argText = (origArg[0]>>>0).toString(16);
                    }
                  } else
                  if (currArg < 0) {
                    // Represent negative numbers in hex as 2's complement.
                    currArg = -currArg;
                    argText = (currAbsArg - 1).toString(16);
                    var buffer = [];
                    for (var i = 0; i < argText.length; i++) {
                      buffer.push((0xF - parseInt(argText[i], 16)).toString(16));
                    }
                    argText = buffer.join('');
                    while (argText.length < argSize * 2) argText = 'f' + argText;
                  } else {
                    argText = currAbsArg.toString(16);
                  }
                  if (next == 88) {
                    prefix = prefix.toUpperCase();
                    argText = argText.toUpperCase();
                  }
                } else if (next == 112) {
                  if (currAbsArg === 0) {
                    argText = '(nil)';
                  } else {
                    prefix = '0x';
                    argText = currAbsArg.toString(16);
                  }
                }
                if (precisionSet) {
                  while (argText.length < precision) {
                    argText = '0' + argText;
                  }
                }
    
                // Add sign if needed
                if (currArg >= 0) {
                  if (flagAlwaysSigned) {
                    prefix = '+' + prefix;
                  } else if (flagPadSign) {
                    prefix = ' ' + prefix;
                  }
                }
    
                // Move sign to prefix so we zero-pad after the sign
                if (argText.charAt(0) == '-') {
                  prefix = '-' + prefix;
                  argText = argText.substr(1);
                }
    
                // Add padding.
                while (prefix.length + argText.length < width) {
                  if (flagLeftAlign) {
                    argText += ' ';
                  } else {
                    if (flagZeroPad) {
                      argText = '0' + argText;
                    } else {
                      prefix = ' ' + prefix;
                    }
                  }
                }
    
                // Insert the result into the buffer.
                argText = prefix + argText;
                argText.split('').forEach(function(chr) {
                  ret.push(chr.charCodeAt(0));
                });
                break;
              }
              case 'f': case 'F': case 'e': case 'E': case 'g': case 'G': {
                // Float.
                var currArg = getNextArg('double');
                var argText;
                if (isNaN(currArg)) {
                  argText = 'nan';
                  flagZeroPad = false;
                } else if (!isFinite(currArg)) {
                  argText = (currArg < 0 ? '-' : '') + 'inf';
                  flagZeroPad = false;
                } else {
                  var isGeneral = false;
                  var effectivePrecision = Math.min(precision, 20);
    
                  // Convert g/G to f/F or e/E, as per:
                  // http://pubs.opengroup.org/onlinepubs/9699919799/functions/printf.html
                  if (next == 103 || next == 71) {
                    isGeneral = true;
                    precision = precision || 1;
                    var exponent = parseInt(currArg.toExponential(effectivePrecision).split('e')[1], 10);
                    if (precision > exponent && exponent >= -4) {
                      next = ((next == 103) ? 'f' : 'F').charCodeAt(0);
                      precision -= exponent + 1;
                    } else {
                      next = ((next == 103) ? 'e' : 'E').charCodeAt(0);
                      precision--;
                    }
                    effectivePrecision = Math.min(precision, 20);
                  }
    
                  if (next == 101 || next == 69) {
                    argText = currArg.toExponential(effectivePrecision);
                    // Make sure the exponent has at least 2 digits.
                    if (/[eE][-+]\d$/.test(argText)) {
                      argText = argText.slice(0, -1) + '0' + argText.slice(-1);
                    }
                  } else if (next == 102 || next == 70) {
                    argText = currArg.toFixed(effectivePrecision);
                    if (currArg === 0 && __reallyNegative(currArg)) {
                      argText = '-' + argText;
                    }
                  }
    
                  var parts = argText.split('e');
                  if (isGeneral && !flagAlternative) {
                    // Discard trailing zeros and periods.
                    while (parts[0].length > 1 && parts[0].indexOf('.') != -1 &&
                           (parts[0].slice(-1) == '0' || parts[0].slice(-1) == '.')) {
                      parts[0] = parts[0].slice(0, -1);
                    }
                  } else {
                    // Make sure we have a period in alternative mode.
                    if (flagAlternative && argText.indexOf('.') == -1) parts[0] += '.';
                    // Zero pad until required precision.
                    while (precision > effectivePrecision++) parts[0] += '0';
                  }
                  argText = parts[0] + (parts.length > 1 ? 'e' + parts[1] : '');
    
                  // Capitalize 'E' if needed.
                  if (next == 69) argText = argText.toUpperCase();
    
                  // Add sign.
                  if (currArg >= 0) {
                    if (flagAlwaysSigned) {
                      argText = '+' + argText;
                    } else if (flagPadSign) {
                      argText = ' ' + argText;
                    }
                  }
                }
    
                // Add padding.
                while (argText.length < width) {
                  if (flagLeftAlign) {
                    argText += ' ';
                  } else {
                    if (flagZeroPad && (argText[0] == '-' || argText[0] == '+')) {
                      argText = argText[0] + '0' + argText.slice(1);
                    } else {
                      argText = (flagZeroPad ? '0' : ' ') + argText;
                    }
                  }
                }
    
                // Adjust case.
                if (next < 97) argText = argText.toUpperCase();
    
                // Insert the result into the buffer.
                argText.split('').forEach(function(chr) {
                  ret.push(chr.charCodeAt(0));
                });
                break;
              }
              case 's': {
                // String.
                var arg = getNextArg('i8*');
                var argLength = arg ? _strlen(arg) : '(null)'.length;
                if (precisionSet) argLength = Math.min(argLength, precision);
                if (!flagLeftAlign) {
                  while (argLength < width--) {
                    ret.push(32);
                  }
                }
                if (arg) {
                  for (var i = 0; i < argLength; i++) {
                    ret.push(HEAPU8[((arg++)|0)]);
                  }
                } else {
                  ret = ret.concat(intArrayFromString('(null)'.substr(0, argLength), true));
                }
                if (flagLeftAlign) {
                  while (argLength < width--) {
                    ret.push(32);
                  }
                }
                break;
              }
              case 'c': {
                // Character.
                if (flagLeftAlign) ret.push(getNextArg('i8'));
                while (--width > 0) {
                  ret.push(32);
                }
                if (!flagLeftAlign) ret.push(getNextArg('i8'));
                break;
              }
              case 'n': {
                // Write the length written so far to the next parameter.
                var ptr = getNextArg('i32*');
                HEAP32[((ptr)>>2)]=ret.length;
                break;
              }
              case '%': {
                // Literal percent sign.
                ret.push(curr);
                break;
              }
              default: {
                // Unknown specifiers remain untouched.
                for (var i = startTextIndex; i < textIndex + 2; i++) {
                  ret.push(HEAP8[(i)]);
                }
              }
            }
            textIndex += 2;
            // TODO: Support a/A (hex float) and m (last error) specifiers.
            // TODO: Support %1${specifier} for arg selection.
          } else {
            ret.push(curr);
            textIndex += 1;
          }
        }
        return ret;
      }function _fprintf(stream, format, varargs) {
        // int fprintf(FILE *restrict stream, const char *restrict format, ...);
        // http://pubs.opengroup.org/onlinepubs/000095399/functions/printf.html
        var result = __formatString(format, varargs);
        var stack = Runtime.stackSave();
        var ret = _fwrite(allocate(result, 'i8', ALLOC_STACK), 1, result.length, stream);
        Runtime.stackRestore(stack);
        return ret;
      }function _printf(format, varargs) {
        // int printf(const char *restrict format, ...);
        // http://pubs.opengroup.org/onlinepubs/000095399/functions/printf.html
        var stdout = HEAP32[((_stdout)>>2)];
        return _fprintf(stdout, format, varargs);
      }
  
    
    function _fputs(s, stream) {
        // int fputs(const char *restrict s, FILE *restrict stream);
        // http://pubs.opengroup.org/onlinepubs/000095399/functions/fputs.html
        var fd = _fileno(stream);
        return _write(fd, s, _strlen(s));
      }
    
    function _fputc(c, stream) {
        // int fputc(int c, FILE *stream);
        // http://pubs.opengroup.org/onlinepubs/000095399/functions/fputc.html
        var chr = unSign(c & 0xFF);
        HEAP8[((_fputc.ret)|0)]=chr;
        var fd = _fileno(stream);
        var ret = _write(fd, _fputc.ret, 1);
        if (ret == -1) {
          var streamObj = FS.getStreamFromPtr(stream);
          if (streamObj) streamObj.error = true;
          return -1;
        } else {
          return chr;
        }
      }function _puts(s) {
        // int puts(const char *s);
        // http://pubs.opengroup.org/onlinepubs/000095399/functions/puts.html
        // NOTE: puts() always writes an extra newline.
        var stdout = HEAP32[((_stdout)>>2)];
        var ret = _fputs(s, stdout);
        if (ret < 0) {
          return ret;
        } else {
          var newlineRet = _fputc(10, stdout);
          return (newlineRet < 0) ? -1 : ret + 1;
        }
      }
  
  
    var _sqrt=Math_sqrt;
  
    var _fabs=Math_abs;
  
    
     
    Module["_memset"] = _memset;var _llvm_memset_p0i8_i32=_memset;
  
  
    function _putchar(c) {
        // int putchar(int c);
        // http://pubs.opengroup.org/onlinepubs/000095399/functions/putchar.html
        return _fputc(c, HEAP32[((_stdout)>>2)]);
      }
  
  
    function _abort() {
        Module['abort']();
      }
  
    function ___errno_location() {
        return ___errno_state;
      }
  
    function _sbrk(bytes) {
        // Implement a Linux-like 'memory area' for our 'process'.
        // Changes the size of the memory area by |bytes|; returns the
        // address of the previous top ('break') of the memory area
        // We control the "dynamic" memory - DYNAMIC_BASE to DYNAMICTOP
        var self = _sbrk;
        if (!self.called) {
          DYNAMICTOP = alignMemoryPage(DYNAMICTOP); // make sure we start out aligned
          self.called = true;
          assert(Runtime.dynamicAlloc);
          self.alloc = Runtime.dynamicAlloc;
          Runtime.dynamicAlloc = function() { abort('cannot dynamically allocate, sbrk now has control') };
        }
        var ret = DYNAMICTOP;
        if (bytes != 0) self.alloc(bytes);
        return ret;  // Previous break location.
      }
  
    function _sysconf(name) {
        // long sysconf(int name);
        // http://pubs.opengroup.org/onlinepubs/009695399/functions/sysconf.html
        switch(name) {
          case 30: return 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 79:
          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 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: return 1;
        }
        ___setErrNo(ERRNO_CODES.EINVAL);
        return -1;
      }
  
    function _time(ptr) {
        var ret = Math.floor(Date.now()/1000);
        if (ptr) {
          HEAP32[((ptr)>>2)]=ret;
        }
        return ret;
      }
  
  
  
  
  
  
    var Browser={mainLoop:{scheduler:null,method:"",shouldPause:false,paused:false,queue:[],pause:function () {
            Browser.mainLoop.shouldPause = true;
          },resume:function () {
            if (Browser.mainLoop.paused) {
              Browser.mainLoop.paused = false;
              Browser.mainLoop.scheduler();
            }
            Browser.mainLoop.shouldPause = false;
          },updateStatus:function () {
            if (Module['setStatus']) {
              var message = Module['statusMessage'] || 'Please wait...';
              var remaining = Browser.mainLoop.remainingBlockers;
              var expected = Browser.mainLoop.expectedBlockers;
              if (remaining) {
                if (remaining < expected) {
                  Module['setStatus'](message + ' (' + (expected - remaining) + '/' + expected + ')');
                } else {
                  Module['setStatus'](message);
                }
              } else {
                Module['setStatus']('');
              }
            }
          }},isFullScreen:false,pointerLock:false,moduleContextCreatedCallbacks:[],workers:[],init:function () {
          if (!Module["preloadPlugins"]) Module["preloadPlugins"] = []; // needs to exist even in workers
    
          if (Browser.initted || ENVIRONMENT_IS_WORKER) return;
          Browser.initted = true;
    
          try {
            new Blob();
            Browser.hasBlobConstructor = true;
          } catch(e) {
            Browser.hasBlobConstructor = false;
            console.log("warning: no blob constructor, cannot create blobs with mimetypes");
          }
          Browser.BlobBuilder = typeof MozBlobBuilder != "undefined" ? MozBlobBuilder : (typeof WebKitBlobBuilder != "undefined" ? WebKitBlobBuilder : (!Browser.hasBlobConstructor ? console.log("warning: no BlobBuilder") : null));
          Browser.URLObject = typeof window != "undefined" ? (window.URL ? window.URL : window.webkitURL) : undefined;
          if (!Module.noImageDecoding && typeof Browser.URLObject === 'undefined') {
            console.log("warning: Browser does not support creating object URLs. Built-in browser image decoding will not be available.");
            Module.noImageDecoding = true;
          }
    
          // Support for plugins that can process preloaded files. You can add more of these to
          // your app by creating and appending to Module.preloadPlugins.
          //
          // Each plugin is asked if it can handle a file based on the file's name. If it can,
          // it is given the file's raw data. When it is done, it calls a callback with the file's
          // (possibly modified) data. For example, a plugin might decompress a file, or it
          // might create some side data structure for use later (like an Image element, etc.).
    
          var imagePlugin = {};
          imagePlugin['canHandle'] = function imagePlugin_canHandle(name) {
            return !Module.noImageDecoding && /\.(jpg|jpeg|png|bmp)$/i.test(name);
          };
          imagePlugin['handle'] = function imagePlugin_handle(byteArray, name, onload, onerror) {
            var b = null;
            if (Browser.hasBlobConstructor) {
              try {
                b = new Blob([byteArray], { type: Browser.getMimetype(name) });
                if (b.size !== byteArray.length) { // Safari bug #118630
                  // Safari's Blob can only take an ArrayBuffer
                  b = new Blob([(new Uint8Array(byteArray)).buffer], { type: Browser.getMimetype(name) });
                }
              } catch(e) {
                Runtime.warnOnce('Blob constructor present but fails: ' + e + '; falling back to blob builder');
              }
            }
            if (!b) {
              var bb = new Browser.BlobBuilder();
              bb.append((new Uint8Array(byteArray)).buffer); // we need to pass a buffer, and must copy the array to get the right data range
              b = bb.getBlob();
            }
            var url = Browser.URLObject.createObjectURL(b);
            var img = new Image();
            img.onload = function img_onload() {
              assert(img.complete, 'Image ' + name + ' could not be decoded');
              var canvas = document.createElement('canvas');
              canvas.width = img.width;
              canvas.height = img.height;
              var ctx = canvas.getContext('2d');
              ctx.drawImage(img, 0, 0);
              Module["preloadedImages"][name] = canvas;
              Browser.URLObject.revokeObjectURL(url);
              if (onload) onload(byteArray);
            };
            img.onerror = function img_onerror(event) {
              console.log('Image ' + url + ' could not be decoded');
              if (onerror) onerror();
            };
            img.src = url;
          };
          Module['preloadPlugins'].push(imagePlugin);
    
          var audioPlugin = {};
          audioPlugin['canHandle'] = function audioPlugin_canHandle(name) {
            return !Module.noAudioDecoding && name.substr(-4) in { '.ogg': 1, '.wav': 1, '.mp3': 1 };
          };
          audioPlugin['handle'] = function audioPlugin_handle(byteArray, name, onload, onerror) {
            var done = false;
            function finish(audio) {
              if (done) return;
              done = true;
              Module["preloadedAudios"][name] = audio;
              if (onload) onload(byteArray);
            }
            function fail() {
              if (done) return;
              done = true;
              Module["preloadedAudios"][name] = new Audio(); // empty shim
              if (onerror) onerror();
            }
            if (Browser.hasBlobConstructor) {
              try {
                var b = new Blob([byteArray], { type: Browser.getMimetype(name) });
              } catch(e) {
                return fail();
              }
              var url = Browser.URLObject.createObjectURL(b); // XXX we never revoke this!
              var audio = new Audio();
              audio.addEventListener('canplaythrough', function() { finish(audio) }, false); // use addEventListener due to chromium bug 124926
              audio.onerror = function audio_onerror(event) {
                if (done) return;
                console.log('warning: browser could not fully decode audio ' + name + ', trying slower base64 approach');
                function encode64(data) {
                  var BASE = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
                  var PAD = '=';
                  var ret = '';
                  var leftchar = 0;
                  var leftbits = 0;
                  for (var i = 0; i < data.length; i++) {
                    leftchar = (leftchar << 8) | data[i];
                    leftbits += 8;
                    while (leftbits >= 6) {
                      var curr = (leftchar >> (leftbits-6)) & 0x3f;
                      leftbits -= 6;
                      ret += BASE[curr];
                    }
                  }
                  if (leftbits == 2) {
                    ret += BASE[(leftchar&3) << 4];
                    ret += PAD + PAD;
                  } else if (leftbits == 4) {
                    ret += BASE[(leftchar&0xf) << 2];
                    ret += PAD;
                  }
                  return ret;
                }
                audio.src = 'data:audio/x-' + name.substr(-3) + ';base64,' + encode64(byteArray);
                finish(audio); // we don't wait for confirmation this worked - but it's worth trying
              };
              audio.src = url;
              // workaround for chrome bug 124926 - we do not always get oncanplaythrough or onerror
              Browser.safeSetTimeout(function() {
                finish(audio); // try to use it even though it is not necessarily ready to play
              }, 10000);
            } else {
              return fail();
            }
          };
          Module['preloadPlugins'].push(audioPlugin);
    
          // Canvas event setup
    
          var canvas = Module['canvas'];
          canvas.requestPointerLock = canvas['requestPointerLock'] ||
                                      canvas['mozRequestPointerLock'] ||
                                      canvas['webkitRequestPointerLock'];
          canvas.exitPointerLock = document['exitPointerLock'] ||
                                   document['mozExitPointerLock'] ||
                                   document['webkitExitPointerLock'] ||
                                   function(){}; // no-op if function does not exist
          canvas.exitPointerLock = canvas.exitPointerLock.bind(document);
    
          function pointerLockChange() {
            Browser.pointerLock = document['pointerLockElement'] === canvas ||
                                  document['mozPointerLockElement'] === canvas ||
                                  document['webkitPointerLockElement'] === canvas;
          }
    
          document.addEventListener('pointerlockchange', pointerLockChange, false);
          document.addEventListener('mozpointerlockchange', pointerLockChange, false);
          document.addEventListener('webkitpointerlockchange', pointerLockChange, false);
    
          if (Module['elementPointerLock']) {
            canvas.addEventListener("click", function(ev) {
              if (!Browser.pointerLock && canvas.requestPointerLock) {
                canvas.requestPointerLock();
                ev.preventDefault();
              }
            }, false);
          }
        },createContext:function (canvas, useWebGL, setInModule, webGLContextAttributes) {
          var ctx;
          try {
            if (useWebGL) {
              var contextAttributes = {
                antialias: false,
                alpha: false
              };
    
              if (webGLContextAttributes) {
                for (var attribute in webGLContextAttributes) {
                  contextAttributes[attribute] = webGLContextAttributes[attribute];
                }
              }
    
    
              var errorInfo = '?';
              function onContextCreationError(event) {
                errorInfo = event.statusMessage || errorInfo;
              }
              canvas.addEventListener('webglcontextcreationerror', onContextCreationError, false);
              try {
                ['experimental-webgl', 'webgl'].some(function(webglId) {
                  return ctx = canvas.getContext(webglId, contextAttributes);
                });
              } finally {
                canvas.removeEventListener('webglcontextcreationerror', onContextCreationError, false);
              }
            } else {
              ctx = canvas.getContext('2d');
            }
            if (!ctx) throw ':(';
          } catch (e) {
            Module.print('Could not create canvas: ' + [errorInfo, e]);
            return null;
          }
          if (useWebGL) {
            // Set the background of the WebGL canvas to black
            canvas.style.backgroundColor = "black";
    
            // Warn on context loss
            canvas.addEventListener('webglcontextlost', function(event) {
              alert('WebGL context lost. You will need to reload the page.');
            }, false);
          }
          if (setInModule) {
            GLctx = Module.ctx = ctx;
            Module.useWebGL = useWebGL;
            Browser.moduleContextCreatedCallbacks.forEach(function(callback) { callback() });
            Browser.init();
          }
          return ctx;
        },destroyContext:function (canvas, useWebGL, setInModule) {},fullScreenHandlersInstalled:false,lockPointer:undefined,resizeCanvas:undefined,requestFullScreen:function (lockPointer, resizeCanvas) {
          Browser.lockPointer = lockPointer;
          Browser.resizeCanvas = resizeCanvas;
          if (typeof Browser.lockPointer === 'undefined') Browser.lockPointer = true;
          if (typeof Browser.resizeCanvas === 'undefined') Browser.resizeCanvas = false;
    
          var canvas = Module['canvas'];
          function fullScreenChange() {
            Browser.isFullScreen = false;
            if ((document['webkitFullScreenElement'] || document['webkitFullscreenElement'] ||
                 document['mozFullScreenElement'] || document['mozFullscreenElement'] ||
                 document['fullScreenElement'] || document['fullscreenElement']) === canvas) {
              canvas.cancelFullScreen = document['cancelFullScreen'] ||
                                        document['mozCancelFullScreen'] ||
                                        document['webkitCancelFullScreen'];
              canvas.cancelFullScreen = canvas.cancelFullScreen.bind(document);
              if (Browser.lockPointer) canvas.requestPointerLock();
              Browser.isFullScreen = true;
              if (Browser.resizeCanvas) Browser.setFullScreenCanvasSize();
            } else if (Browser.resizeCanvas){
              Browser.setWindowedCanvasSize();
            }
            if (Module['onFullScreen']) Module['onFullScreen'](Browser.isFullScreen);
          }
    
          if (!Browser.fullScreenHandlersInstalled) {
            Browser.fullScreenHandlersInstalled = true;
            document.addEventListener('fullscreenchange', fullScreenChange, false);
            document.addEventListener('mozfullscreenchange', fullScreenChange, false);
            document.addEventListener('webkitfullscreenchange', fullScreenChange, false);
          }
    
          canvas.requestFullScreen = canvas['requestFullScreen'] ||
                                     canvas['mozRequestFullScreen'] ||
                                     (canvas['webkitRequestFullScreen'] ? function() { canvas['webkitRequestFullScreen'](Element['ALLOW_KEYBOARD_INPUT']) } : null);
          canvas.requestFullScreen();
        },requestAnimationFrame:function requestAnimationFrame(func) {
          if (typeof window === 'undefined') { // Provide fallback to setTimeout if window is undefined (e.g. in Node.js)
            setTimeout(func, 1000/60);
          } else {
            if (!window.requestAnimationFrame) {
              window.requestAnimationFrame = window['requestAnimationFrame'] ||
                                             window['mozRequestAnimationFrame'] ||
                                             window['webkitRequestAnimationFrame'] ||
                                             window['msRequestAnimationFrame'] ||
                                             window['oRequestAnimationFrame'] ||
                                             window['setTimeout'];
            }
            window.requestAnimationFrame(func);
          }
        },safeCallback:function (func) {
          return function() {
            if (!ABORT) return func.apply(null, arguments);
          };
        },safeRequestAnimationFrame:function (func) {
          return Browser.requestAnimationFrame(function() {
            if (!ABORT) func();
          });
        },safeSetTimeout:function (func, timeout) {
          return setTimeout(function() {
            if (!ABORT) func();
          }, timeout);
        },safeSetInterval:function (func, timeout) {
          return setInterval(function() {
            if (!ABORT) func();
          }, timeout);
        },getMimetype:function (name) {
          return {
            'jpg': 'image/jpeg',
            'jpeg': 'image/jpeg',
            'png': 'image/png',
            'bmp': 'image/bmp',
            'ogg': 'audio/ogg',
            'wav': 'audio/wav',
            'mp3': 'audio/mpeg'
          }[name.substr(name.lastIndexOf('.')+1)];
        },getUserMedia:function (func) {
          if(!window.getUserMedia) {
            window.getUserMedia = navigator['getUserMedia'] ||
                                  navigator['mozGetUserMedia'];
          }
          window.getUserMedia(func);
        },getMovementX:function (event) {
          return event['movementX'] ||
                 event['mozMovementX'] ||
                 event['webkitMovementX'] ||
                 0;
        },getMovementY:function (event) {
          return event['movementY'] ||
                 event['mozMovementY'] ||
                 event['webkitMovementY'] ||
                 0;
        },getMouseWheelDelta:function (event) {
          return Math.max(-1, Math.min(1, event.type === 'DOMMouseScroll' ? event.detail : -event.wheelDelta));
        },mouseX:0,mouseY:0,mouseMovementX:0,mouseMovementY:0,calculateMouseEvent:function (event) { // event should be mousemove, mousedown or mouseup
          if (Browser.pointerLock) {
            // When the pointer is locked, calculate the coordinates
            // based on the movement of the mouse.
            // Workaround for Firefox bug 764498
            if (event.type != 'mousemove' &&
                ('mozMovementX' in event)) {
              Browser.mouseMovementX = Browser.mouseMovementY = 0;
            } else {
              Browser.mouseMovementX = Browser.getMovementX(event);
              Browser.mouseMovementY = Browser.getMovementY(event);
            }
            
            // check if SDL is available
            if (typeof SDL != "undefined") {
            	Browser.mouseX = SDL.mouseX + Browser.mouseMovementX;
            	Browser.mouseY = SDL.mouseY + Browser.mouseMovementY;
            } else {
            	// just add the mouse delta to the current absolut mouse position
            	// FIXME: ideally this should be clamped against the canvas size and zero
            	Browser.mouseX += Browser.mouseMovementX;
            	Browser.mouseY += Browser.mouseMovementY;
            }        
          } else {
            // Otherwise, calculate the movement based on the changes
            // in the coordinates.
            var rect = Module["canvas"].getBoundingClientRect();
            var x, y;
            
            // Neither .scrollX or .pageXOffset are defined in a spec, but
            // we prefer .scrollX because it is currently in a spec draft.
            // (see: http://www.w3.org/TR/2013/WD-cssom-view-20131217/)
            var scrollX = ((typeof window.scrollX !== 'undefined') ? window.scrollX : window.pageXOffset);
            var scrollY = ((typeof window.scrollY !== 'undefined') ? window.scrollY : window.pageYOffset);
            if (event.type == 'touchstart' ||
                event.type == 'touchend' ||
                event.type == 'touchmove') {
              var t = event.touches.item(0);
              if (t) {
                x = t.pageX - (scrollX + rect.left);
                y = t.pageY - (scrollY + rect.top);
              } else {
                return;
              }
            } else {
              x = event.pageX - (scrollX + rect.left);
              y = event.pageY - (scrollY + rect.top);
            }
    
            // the canvas might be CSS-scaled compared to its backbuffer;
            // SDL-using content will want mouse coordinates in terms
            // of backbuffer units.
            var cw = Module["canvas"].width;
            var ch = Module["canvas"].height;
            x = x * (cw / rect.width);
            y = y * (ch / rect.height);
    
            Browser.mouseMovementX = x - Browser.mouseX;
            Browser.mouseMovementY = y - Browser.mouseY;
            Browser.mouseX = x;
            Browser.mouseY = y;
          }
        },xhrLoad:function (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);
            } else {
              onerror();
            }
          };
          xhr.onerror = onerror;
          xhr.send(null);
        },asyncLoad:function (url, onload, onerror, noRunDep) {
          Browser.xhrLoad(url, function(arrayBuffer) {
            assert(arrayBuffer, 'Loading data file "' + url + '" failed (no arrayBuffer).');
            onload(new Uint8Array(arrayBuffer));
            if (!noRunDep) removeRunDependency('al ' + url);
          }, function(event) {
            if (onerror) {
              onerror();
            } else {
              throw 'Loading data file "' + url + '" failed.';
            }
          });
          if (!noRunDep) addRunDependency('al ' + url);
        },resizeListeners:[],updateResizeListeners:function () {
          var canvas = Module['canvas'];
          Browser.resizeListeners.forEach(function(listener) {
            listener(canvas.width, canvas.height);
          });
        },setCanvasSize:function (width, height, noUpdates) {
          var canvas = Module['canvas'];
          canvas.width = width;
          canvas.height = height;
          if (!noUpdates) Browser.updateResizeListeners();
        },windowedWidth:0,windowedHeight:0,setFullScreenCanvasSize:function () {
          var canvas = Module['canvas'];
          this.windowedWidth = canvas.width;
          this.windowedHeight = canvas.height;
          canvas.width = screen.width;
          canvas.height = screen.height;
          // check if SDL is available   
          if (typeof SDL != "undefined") {
          	var flags = HEAPU32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)];
          	flags = flags | 0x00800000; // set SDL_FULLSCREEN flag
          	HEAP32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)]=flags
          }
          Browser.updateResizeListeners();
        },setWindowedCanvasSize:function () {
          var canvas = Module['canvas'];
          canvas.width = this.windowedWidth;
          canvas.height = this.windowedHeight;
          // check if SDL is available       
          if (typeof SDL != "undefined") {
          	var flags = HEAPU32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)];
          	flags = flags & ~0x00800000; // clear SDL_FULLSCREEN flag
          	HEAP32[((SDL.screen+Runtime.QUANTUM_SIZE*0)>>2)]=flags
          }
          Browser.updateResizeListeners();
        }};
  FS.staticInit();__ATINIT__.unshift({ func: function() { if (!Module["noFSInit"] && !FS.init.initialized) FS.init() } });__ATMAIN__.push({ func: function() { FS.ignorePermissions = false } });__ATEXIT__.push({ func: function() { FS.quit() } });Module["FS_createFolder"] = FS.createFolder;Module["FS_createPath"] = FS.createPath;Module["FS_createDataFile"] = FS.createDataFile;Module["FS_createPreloadedFile"] = FS.createPreloadedFile;Module["FS_createLazyFile"] = FS.createLazyFile;Module["FS_createLink"] = FS.createLink;Module["FS_createDevice"] = FS.createDevice;
  ___errno_state = Runtime.staticAlloc(4); HEAP32[((___errno_state)>>2)]=0;
  __ATINIT__.unshift({ func: function() { TTY.init() } });__ATEXIT__.push({ func: function() { TTY.shutdown() } });TTY.utf8 = new Runtime.UTF8Processor();
  if (ENVIRONMENT_IS_NODE) { var fs = require("fs"); NODEFS.staticInit(); }
  __ATINIT__.push({ func: function() { SOCKFS.root = FS.mount(SOCKFS, {}, null); } });
  _fputc.ret = allocate([0], "i8", ALLOC_STATIC);
  Module["requestFullScreen"] = function Module_requestFullScreen(lockPointer, resizeCanvas) { Browser.requestFullScreen(lockPointer, resizeCanvas) };
    Module["requestAnimationFrame"] = function Module_requestAnimationFrame(func) { Browser.requestAnimationFrame(func) };
    Module["setCanvasSize"] = function Module_setCanvasSize(width, height, noUpdates) { Browser.setCanvasSize(width, height, noUpdates) };
    Module["pauseMainLoop"] = function Module_pauseMainLoop() { Browser.mainLoop.pause() };
    Module["resumeMainLoop"] = function Module_resumeMainLoop() { Browser.mainLoop.resume() };
    Module["getUserMedia"] = function Module_getUserMedia() { Browser.getUserMedia() }
  STACK_BASE = STACKTOP = Runtime.alignMemory(STATICTOP);
  
  staticSealed = true; // seal the static portion of memory
  
  STACK_MAX = STACK_BASE + 5242880;
  
  DYNAMIC_BASE = DYNAMICTOP = Runtime.alignMemory(STACK_MAX);
  
  assert(DYNAMIC_BASE < TOTAL_MEMORY, "TOTAL_MEMORY not big enough for stack");
  
  
  var Math_min = Math.min;
  function invoke_viiiii(index,a1,a2,a3,a4,a5) {
    try {
      Module["dynCall_viiiii"](index,a1,a2,a3,a4,a5);
    } catch(e) {
      if (typeof e !== 'number' && e !== 'longjmp') throw e;
      asm["setThrew"](1, 0);
    }
  }
  
  function invoke_vi(index,a1) {
    try {
      Module["dynCall_vi"](index,a1);
    } catch(e) {
      if (typeof e !== 'number' && e !== 'longjmp') throw e;
      asm["setThrew"](1, 0);
    }
  }
  
  function invoke_ii(index,a1) {
    try {
      return Module["dynCall_ii"](index,a1);
    } catch(e) {
      if (typeof e !== 'number' && e !== 'longjmp') throw e;
      asm["setThrew"](1, 0);
    }
  }
  
  function invoke_ddi(index,a1,a2) {
    try {
      return Module["dynCall_ddi"](index,a1,a2);
    } catch(e) {
      if (typeof e !== 'number' && e !== 'longjmp') throw e;
      asm["setThrew"](1, 0);
    }
  }
  
  function invoke_v(index) {
    try {
      Module["dynCall_v"](index);
    } catch(e) {
      if (typeof e !== 'number' && e !== 'longjmp') throw e;
      asm["setThrew"](1, 0);
    }
  }
  
  function invoke_iii(index,a1,a2) {
    try {
      return Module["dynCall_iii"](index,a1,a2);
    } catch(e) {
      if (typeof e !== 'number' && e !== 'longjmp') throw e;
      asm["setThrew"](1, 0);
    }
  }
  
  function asmPrintInt(x, y) {
    Module.print('int ' + x + ',' + y);// + ' ' + new Error().stack);
  }
  function asmPrintFloat(x, y) {
    Module.print('float ' + x + ',' + y);// + ' ' + new Error().stack);
  }
  // EMSCRIPTEN_START_ASM
  var asm=(function(global,env,buffer){"use asm";var a=new global.Int8Array(buffer);var b=new global.Int16Array(buffer);var c=new global.Int32Array(buffer);var d=new global.Uint8Array(buffer);var e=new global.Uint16Array(buffer);var f=new global.Uint32Array(buffer);var g=new global.Float32Array(buffer);var h=new global.Float64Array(buffer);var i=env.STACKTOP|0;var j=env.STACK_MAX|0;var k=env.tempDoublePtr|0;var l=env.ABORT|0;var m=env._stdout|0;var n=env._stderr|0;var o=+env.NaN;var p=+env.Infinity;var q=0;var r=0;var s=0;var t=0;var u=0,v=0,w=0,x=0,y=0.0,z=0,A=0,B=0,C=0.0;var D=0;var E=0;var F=0;var G=0;var H=0;var I=0;var J=0;var K=0;var L=0;var M=0;var N=global.Math.floor;var O=global.Math.abs;var P=global.Math.sqrt;var Q=global.Math.pow;var R=global.Math.cos;var S=global.Math.sin;var T=global.Math.tan;var U=global.Math.acos;var V=global.Math.asin;var W=global.Math.atan;var X=global.Math.atan2;var Y=global.Math.exp;var Z=global.Math.log;var _=global.Math.ceil;var $=global.Math.imul;var aa=env.abort;var ba=env.assert;var ca=env.asmPrintInt;var da=env.asmPrintFloat;var ea=env.min;var fa=env.jsCall;var ga=env.invoke_viiiii;var ha=env.invoke_vi;var ia=env.invoke_ii;var ja=env.invoke_ddi;var ka=env.invoke_v;var la=env.invoke_iii;var ma=env._sysconf;var na=env._abort;var oa=env._fprintf;var pa=env._sqrt;var qa=env._printf;var ra=env._fflush;var sa=env.__reallyNegative;var ta=env._fputc;var ua=env._fabs;var va=env.___setErrNo;var wa=env._fwrite;var xa=env._send;var ya=env._write;var za=env._fputs;var Aa=env.__formatString;var Ba=env._emscripten_memcpy_big;var Ca=env._fileno;var Da=env._pwrite;var Ea=env._putchar;var Fa=env._puts;var Ga=env._sbrk;var Ha=env.___errno_location;var Ia=env._mkport;var Ja=env._time;var Ka=0.0;
  // EMSCRIPTEN_START_FUNCS
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j=0,k=0,l=0,m=0,n=0.0,o=0,p=0.0,q=0.0,r=0.0,s=0.0;j=i;i=i+88|0;k=j|0;l=j+64|0;qb(k|0,160,64)|0;c[k+52>>2]=7;Fa(96)|0;ib(a,b,d,e,f,g,k,l);Fa(80)|0;k=c[112+(c[l+12>>2]<<2)>>2]|0;qa(1472,(m=i,i=i+16|0,c[m>>2]=c[l+8>>2],c[m+8>>2]=k,m)|0)|0;i=m;Fa(40)|0;if((a|0)>0){k=0;do{n=+h[b+(k<<3)>>3];qa(800,(m=i,i=i+16|0,c[m>>2]=k,h[m+8>>3]=n,m)|0)|0;i=m;k=k+1|0;}while((k|0)<(a|0))}qa(576,(m=i,i=i+8|0,h[m>>3]=+h[l>>3],m)|0)|0;i=m;Fa(8)|0;if((d|0)>0){o=0}else{i=j;return 0}do{l=e+(o<<3)|0;n=+h[l>>3];a=f+(o<<3)|0;p=+h[a>>3];q=+Oa[g&63](n,b);r=+h[a>>3];s=r- +Oa[g&63](+h[l>>3],b);qa(400,(m=i,i=i+40|0,c[m>>2]=o,h[m+8>>3]=n,h[m+16>>3]=p,h[m+24>>3]=q,h[m+32>>3]=s,m)|0)|0;i=m;o=o+1|0;}while((o|0)<(d|0));i=j;return 0}function hb(a,b,d,e,f){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;var g=0,i=0,j=0.0;if((b|0)<=0){return}f=d+4|0;g=d+8|0;i=d;d=0;do{j=+h[(c[f>>2]|0)+(d<<3)>>3];h[e+(d<<3)>>3]=j- +Oa[c[g>>2]&63](+h[(c[i>>2]|0)+(d<<3)>>3],a);d=d+1|0;}while((d|0)<(b|0));return}function ib(a,b,d,e,f,g,h,j){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;h=h|0;j=j|0;var k=0,l=0;k=i;i=i+16|0;l=k|0;c[l>>2]=e;c[l+4>>2]=f;c[l+8>>2]=g;jb(a,b,d,l,42,h,j);i=k;return}function jb(a,b,d,e,f,g,j){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;j=j|0;var k=0,l=0,o=0,p=0,q=0.0,r=0.0,s=0,t=0,u=0,v=0,w=0,x=0,y=0,z=0,A=0.0,B=0,C=0,D=0.0,E=0,F=0,G=0,H=0,I=0,J=0,K=0,L=0,M=0,N=0,Q=0,R=0,S=0,T=0,U=0,V=0,W=0,X=0,Y=0,Z=0,_=0,aa=0,ba=0,ca=0.0,da=0,ea=0.0,fa=0,ga=0,ha=0,ia=0,ja=0.0,ka=0.0,la=0.0,ma=0,na=0,pa=0,ra=0,sa=0.0,ua=0.0,va=0.0,xa=0,ya=0,za=0,Aa=0,Ba=0.0,Ca=0,Da=0,Ga=0,Ha=0.0,Ia=0,Ja=0.0,Ka=0.0,Ma=0,Na=0.0,Oa=0.0,Pa=0.0,Qa=0,Ra=0.0,Sa=0.0,Ta=0.0,Ua=0.0,Va=0.0,Wa=0,Xa=0,Ya=0,Za=0.0,_a=0.0,$a=0.0,ab=0.0,bb=0.0,cb=0.0,db=0,eb=0.0,fb=0.0,gb=0,hb=0;k=i;l=b;o=i;i=i+8|0;p=$(c[g+40>>2]|0,a+1|0)|0;h[o>>3]=0.0;q=+h[g+24>>3];r=+P(q<2.220446049250313e-16?2.220446049250313e-16:q);s=c[g+56>>2]|0;if((s|0)==-1){t=a}else{t=(s|0)>(a|0)?a:s}s=c[g+48>>2]|0;u=(s|0)==0?c[m>>2]|0:s;s=j+12|0;c[s>>2]=0;v=j+16|0;c[v>>2]=0;w=j+8|0;c[w>>2]=0;if((a|0)<1){oa(c[n>>2]|0,1336,(x=i,i=i+8|0,c[x>>2]=a,x)|0)|0;i=x;c[s>>2]=10;i=k;return}if((d|0)<(a|0)){oa(c[n>>2]|0,1256,(x=i,i=i+16|0,c[x>>2]=d,c[x+8>>2]=a,x)|0)|0;i=x;c[s>>2]=10;i=k;return}y=g|0;q=+h[y>>3];z=g+8|0;A=+h[z>>3];do{if(!(q<0.0|A<0.0)){B=g+16|0;if(+h[B>>3]<0.0){break}if((p|0)<1){oa(c[n>>2]|0,1144,(x=i,i=i+8|0,c[x>>2]=p,x)|0)|0;i=x;c[s>>2]=10;i=k;return}C=g+32|0;D=+h[C>>3];if(!(D>0.0)){oa(c[n>>2]|0,1056,(x=i,i=i+8|0,h[x>>3]=D,x)|0)|0;i=x;c[s>>2]=10;i=k;return}E=g+44|0;F=c[E>>2]|0;if(!(F>>>0<2>>>0)){oa(c[n>>2]|0,992,(x=i,i=i+8|0,c[x>>2]=F,x)|0)|0;i=x;c[s>>2]=10;i=k;return}G=d<<3;H=ob(G)|0;I=H;do{if((H|0)!=0){J=a<<3;K=ob(J)|0;L=K;if((K|0)==0){break}M=ob(J)|0;N=M;if((M|0)==0){break}Q=ob($(J,d)|0)|0;R=Q;if((Q|0)==0){break}S=ob(J)|0;T=S;if((S|0)==0){break}U=ob(J)|0;V=U;if((U|0)==0){break}W=ob(J)|0;J=W;if((W|0)==0){break}X=ob(G)|0;Y=X;if((X|0)==0){break}Z=ob(a<<2)|0;_=Z;if((Z|0)==0){break}if((F|0)==0&(a|0)>0){aa=0;do{h[L+(aa<<3)>>3]=1.0;aa=aa+1|0;}while((aa|0)<(a|0))}La[f&63](b,d,e,I,v);c[w>>2]=1;a:do{if((c[v>>2]|0)==0){D=+kb(d,I);aa=g+52|0;if((c[aa>>2]|0)!=0){wa(976,12,1,u|0)|0;if((t|0)>0){ba=0;do{oa(u|0,1464,(x=i,i=i+8|0,h[x>>3]=+h[b+(ba<<3)>>3],x)|0)|0;i=x;ba=ba+1|0;}while((ba|0)<(t|0))}oa(u|0,1376,(x=i,i=i+8|0,h[x>>3]=D,x)|0)|0;i=x}if(!(D>2.2250738585072014e-308)){c[s>>2]=0;ca=0.0;da=aa;break}ba=(a|0)>0;ea=r*r;fa=(d|0)>0;ga=(t|0)>0;ha=d<<3;ia=a<<3;ja=D;ka=0.0;la=0.0;ma=0;b:while(1){c:do{if(ba){if(fa){na=0}else{pa=0;while(1){ra=b+(pa<<3)|0;sa=+h[ra>>3];ua=+O(+sa);h[ra>>3]=sa+r*(ea<r*ua?ua:r);La[f&63](b,d,e,Y,v);c[w>>2]=(c[w>>2]|0)+1;if((c[v>>2]|0)!=0){ca=ka;da=aa;break a}h[ra>>3]=sa;pa=pa+1|0;if((pa|0)>=(a|0)){break c}}}do{pa=b+(na<<3)|0;sa=+h[pa>>3];ua=+O(+sa);va=r*(ea<r*ua?ua:r);h[pa>>3]=sa+va;La[f&63](b,d,e,Y,v);c[w>>2]=(c[w>>2]|0)+1;if((c[v>>2]|0)!=0){ca=ka;da=aa;break a}ra=$(na,d)|0;xa=0;do{h[R+(xa+ra<<3)>>3]=(+h[Y+(xa<<3)>>3]- +h[I+(xa<<3)>>3])/va;xa=xa+1|0;}while((xa|0)<(d|0));h[pa>>3]=sa;na=na+1|0;}while((na|0)<(a|0))}}while(0);do{if((c[aa>>2]|0)>9){Fa(64)|0;if(fa){ya=0}else{lb(d,a,R,_,T,V,J);break}while(1){qa(968,(x=i,i=i+1|0,i=i+7&-8,c[x>>2]=0,x)|0)|0;i=x;if(ba){xa=0;do{va=+h[R+(($(xa,d)|0)+ya<<3)>>3];qa(960,(x=i,i=i+8|0,h[x>>3]=va,x)|0)|0;i=x;xa=xa+1|0;}while((xa|0)<(a|0))}Ea(10)|0;xa=ya+1|0;if((xa|0)<(d|0)){ya=xa}else{za=51;break}}}else{za=51}}while(0);do{if((za|0)==51){za=0;lb(d,a,R,_,T,V,J);if(!fa){break}qb(X|0,H|0,ha)|0}}while(0);do{if(ba){xa=0;do{pa=$(xa,d)|0;ra=R+(pa+xa<<3)|0;sa=+h[ra>>3];do{if(sa!=0.0){Aa=(xa|0)<(d|0);if(Aa){Ba=0.0;Ca=xa}else{break}do{Ba=Ba+ +h[R+(Ca+pa<<3)>>3]*+h[Y+(Ca<<3)>>3];Ca=Ca+1|0;}while((Ca|0)<(d|0));va=(-0.0-Ba)/sa;if(Aa){Da=xa}else{break}do{Ga=Y+(Da<<3)|0;h[Ga>>3]=+h[Ga>>3]+va*+h[R+(Da+pa<<3)>>3];Da=Da+1|0;}while((Da|0)<(d|0))}}while(0);h[ra>>3]=+h[T+(xa<<3)>>3];h[N+(xa<<3)>>3]=+h[Y+(xa<<3)>>3];xa=xa+1|0;}while((xa|0)<(a|0));if(ba){Ha=0.0;Ia=0}else{Ja=0.0;break}while(1){sa=+h[V+(c[_+(Ia<<2)>>2]<<3)>>3];if(sa==0.0){Ka=Ha}else{xa=$(Ia,d)|0;va=0.0;pa=0;do{va=va+ +h[R+(pa+xa<<3)>>3]*+h[N+(pa<<3)>>3];pa=pa+1|0;}while((pa|0)<=(Ia|0));ua=+O(+(va/sa/ja));Ka=Ha<ua?ua:Ha}pa=Ia+1|0;if((pa|0)<(a|0)){Ha=Ka;Ia=pa}else{Ja=Ka;break}}}else{Ja=0.0}}while(0);if(!(Ja>+h[B>>3])){za=67;break}pa=(ma|0)!=0;xa=(c[E>>2]|0)!=0;do{if(pa){if(xa&ba){Ma=0}else{Na=ka;Oa=la;break}while(1){ra=L+(Ma<<3)|0;ua=+h[ra>>3];Pa=+h[V+(Ma<<3)>>3];h[ra>>3]=ua<Pa?Pa:ua;ra=Ma+1|0;if((ra|0)<(a|0)){Ma=ra}else{Na=ka;Oa=la;break}}}else{do{if(xa){do{if(ba){ra=0;do{ua=+h[V+(ra<<3)>>3];h[L+(ra<<3)>>3]=ua!=0.0?ua:1.0;ra=ra+1|0;}while((ra|0)<(a|0));if(ba){Qa=0}else{break}do{h[J+(Qa<<3)>>3]=+h[L+(Qa<<3)>>3]*+h[b+(Qa<<3)>>3];Qa=Qa+1|0;}while((Qa|0)<(a|0))}}while(0);sa=+kb(a,J);if((c[aa>>2]|0)<=1){Ra=sa;break}wa(944,12,1,u|0)|0;if(ga){ra=0;do{oa(u|0,1464,(x=i,i=i+8|0,h[x>>3]=+h[b+(ra<<3)>>3],x)|0)|0;i=x;ra=ra+1|0;}while((ra|0)<(t|0))}oa(u|0,1376,(x=i,i=i+8|0,h[x>>3]=sa,x)|0)|0;i=x;if((c[aa>>2]|0)<=2){Ra=sa;break}wa(848,95,1,u|0)|0;if(ga){ra=0;do{oa(u|0,824,(x=i,i=i+8|0,c[x>>2]=ra,x)|0)|0;i=x;ra=ra+1|0;}while((ra|0)<(t|0))}ta(10,u|0)|0;Ra=sa}else{Ra=+kb(a,b)}}while(0);va=+h[C>>3];if(!(Ra!=0.0)){Na=Ra;Oa=va;break}Na=Ra;Oa=Ra*va}}while(0);xa=pa^1;ra=Ja>2.220446049250313e-16;va=ja;ua=Na;Pa=Oa;Aa=0;while(1){mb(a,R,d,_,L,N,Pa,o,T,V,Y,J);Sa=+kb(a,J);Ta=+h[o>>3];Ua=Sa/va;Va=Ua*Ta*Ua;if(ba){Ga=0;do{h[J+(Ga<<3)>>3]=0.0;Wa=$(Ga,d)|0;Ua=+h[T+(c[_+(Ga<<2)>>2]<<3)>>3];Xa=0;do{Ya=J+(Xa<<3)|0;h[Ya>>3]=+h[Ya>>3]- +h[R+(Xa+Wa<<3)>>3]*Ua;Xa=Xa+1|0;}while((Xa|0)<=(Ga|0));Ga=Ga+1|0;}while((Ga|0)<(a|0))}Ua=+kb(a,J)/va;sa=Ua*Ua;Ua=Va*2.0+sa;Za=Va-sa;sa=Sa<Pa&xa?Sa:Pa;if(ba){Ga=0;do{h[V+(Ga<<3)>>3]=+h[b+(Ga<<3)>>3]- +h[T+(Ga<<3)>>3];Ga=Ga+1|0;}while((Ga|0)<(a|0))}La[f&63](V,d,e,Y,v);c[w>>2]=(c[w>>2]|0)+1;if((c[v>>2]|0)!=0){ca=ua;da=aa;break a}Va=+kb(d,Y);_a=Va/va;$a=1.0-_a*_a;if(Ua!=0.0){ab=$a/Ua}else{ab=0.0}Ga=c[aa>>2]|0;do{if((Ga|0)==2){oa(u|0,784,(x=i,i=i+16|0,c[x>>2]=ma,c[x+8>>2]=Aa,x)|0)|0;i=x;if(ga){Xa=0;do{oa(u|0,1464,(x=i,i=i+8|0,h[x>>3]=+h[V+(Xa<<3)>>3],x)|0)|0;i=x;Xa=Xa+1|0;}while((Xa|0)<(t|0))}oa(u|0,1376,(x=i,i=i+8|0,h[x>>3]=Va,x)|0)|0;i=x}else{if((Ga|0)<=2){break}qa(728,(x=i,i=i+72|0,c[x>>2]=ma,c[x+8>>2]=Aa,h[x+16>>3]=Ta,h[x+24>>3]=Ua,h[x+32>>3]=ab,h[x+40>>3]=Za,h[x+48>>3]=sa,h[x+56>>3]=Sa,h[x+64>>3]=Va,x)|0)|0;i=x;if(ga){Xa=0;do{oa(u|0,1464,(x=i,i=i+8|0,h[x>>3]=+h[V+(Xa<<3)>>3],x)|0)|0;i=x;Xa=Xa+1|0;}while((Xa|0)<(t|0))}ta(10,u|0)|0}}while(0);do{if(ab>.25){if(!(ab<.75)){h[o>>3]=Ta*.5;bb=Sa*2.0;break}if(Ta!=0.0){bb=sa;break}bb=Sa*2.0}else{do{if($a<0.0){if(!($a>-99.0)){cb=.1;break}_a=Za/(Za*2.0+$a);cb=_a<.1?.1:_a}else{cb=.5}}while(0);_a=Sa/.1;h[o>>3]=Ta/cb;bb=cb*(sa>_a?_a:sa)}}while(0);Ga=ab>=1.0e-4;if(Ga){do{if((c[E>>2]|0)==0){if(!ba){break}qb(l|0,U|0,ia)|0}else{if(ba){db=0}else{break}do{Xa=V+(db<<3)|0;sa=+h[Xa>>3];h[b+(db<<3)>>3]=sa;h[Xa>>3]=sa*+h[L+(db<<3)>>3];db=db+1|0;}while((db|0)<(a|0))}}while(0);if(fa){qb(H|0,X|0,ha)|0}eb=Va;fb=+kb(a,V)}else{eb=va;fb=ua}c[s>>2]=0;if(!(eb>2.2250738585072014e-308)){ca=fb;da=aa;break a}sa=+O(+$a);Ta=+h[y>>3];Xa=ab>2.0;if(sa>Ta|Ua>Ta|Xa){gb=0}else{c[s>>2]=1;gb=1}if(!(bb>fb*+h[z>>3])){za=126;break b}if((gb|0)!=0){ca=fb;da=aa;break a}if((c[w>>2]|0)>=(p|0)){za=129;break b}if(!(sa>2.220446049250313e-16|Ua>2.220446049250313e-16|Xa)){za=131;break b}if(!(bb>fb*2.220446049250313e-16)){za=133;break b}if(!ra){za=135;break b}if(Ga){break}else{va=eb;ua=fb;Pa=bb;Aa=Aa+1|0}}ja=eb;ka=fb;la=bb;ma=ma+1|0}if((za|0)==67){c[s>>2]=4;ca=ka;da=aa;break}else if((za|0)==126){c[s>>2]=gb|2;ca=fb;da=aa;break}else if((za|0)==129){c[s>>2]=5;ca=fb;da=aa;break}else if((za|0)==131){c[s>>2]=6;ca=fb;da=aa;break}else if((za|0)==133){c[s>>2]=7;ca=fb;da=aa;break}else if((za|0)==135){c[s>>2]=8;ca=fb;da=aa;break}}else{ca=0.0;da=g+52|0}}while(0);V=j|0;h[V>>3]=+kb(d,I);L=c[da>>2]|0;if((L|0)>1){la=+h[y>>3];ja=+h[z>>3];qa(680,(x=i,i=i+32|0,c[x>>2]=c[s>>2],h[x+8>>3]=ca,h[x+16>>3]=la,h[x+24>>3]=ja,x)|0)|0;i=x;hb=c[da>>2]|0}else{hb=L}if((hb&1|0)!=0){wa(664,12,1,u|0)|0;ja=+h[V>>3];if((t|0)>0){V=0;do{oa(u|0,1464,(x=i,i=i+8|0,h[x>>3]=+h[b+(V<<3)>>3],x)|0)|0;i=x;V=V+1|0;}while((V|0)<(t|0))}oa(u|0,1376,(x=i,i=i+8|0,h[x>>3]=ja,x)|0)|0;i=x}if((c[v>>2]|0)!=0){c[s>>2]=11}pb(H);pb(K);pb(M);pb(Q);pb(S);pb(U);pb(W);pb(X);pb(Z);i=k;return}}while(0);c[s>>2]=9;i=k;return}}while(0);ca=+h[g+16>>3];oa(c[n>>2]|0,1200,(x=i,i=i+24|0,h[x>>3]=q,h[x+8>>3]=A,h[x+16>>3]=ca,x)|0)|0;i=x;c[s>>2]=10;i=k;return}function kb(a,b){a=a|0;b=b|0;var c=0.0,d=0,e=0.0,f=0.0,g=0.0,i=0.0,j=0.0,k=0.0,l=0.0,m=0.0,n=0.0,o=0.0,p=0.0,q=0.0,r=0.0,s=0,t=0.0,u=0.0,v=0.0;c=1.3407807929942596e+154/+(a|0);do{if((a|0)>0){d=0;e=0.0;f=0.0;g=0.0;i=0.0;j=0.0;while(1){k=+h[b+(d<<3)>>3];l=+O(+k);do{if(l>1.4916681462400413e-154){if(l<c){m=j;n=i;o=g;p=f+l*l;q=e;break}if(l>i){r=i/l;m=j;n=l;o=g;p=f;q=r*e*r+1.0;break}else{r=l/i;m=j;n=i;o=g;p=f;q=e+r*r;break}}else{if(l>j){r=j/l;m=l;n=i;o=r*g*r+1.0;p=f;q=e;break}if(!(k!=0.0)){m=j;n=i;o=g;p=f;q=e;break}r=l/j;m=j;n=i;o=g+r*r;p=f;q=e}}while(0);s=d+1|0;if((s|0)<(a|0)){d=s;e=q;f=p;g=o;i=n;j=m}else{break}}if(q!=0.0){t=n*+P(q+p/n/n);return+t}if(!(p!=0.0)){u=o;v=m;break}if(p<m){t=+P(m*(o*m+p/m));return+t}else{t=+P(p*(o*m*(m/p)+1.0));return+t}}else{u=0.0;v=0.0}}while(0);t=v*+P(u);return+t}function lb(a,b,d,e,f,g,i){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;i=i|0;var j=0,k=0.0,l=0,m=0,n=0,o=0,p=0,q=0,r=0,s=0,t=0,u=0.0,v=0.0,w=0,x=0.0,y=0,z=0,A=0,B=0.0,C=0.0,D=0;if((b|0)>0){j=0;do{k=+kb(a,d+(($(j,a)|0)<<3)|0);h[g+(j<<3)>>3]=k;h[f+(j<<3)>>3]=k;h[i+(j<<3)>>3]=k;c[e+(j<<2)>>2]=j;j=j+1|0;}while((j|0)<(b|0))}j=(a|0)<=(b|0)?a:b;if((j|0)<=0){return}g=(a|0)>0;l=0;while(1){m=l+1|0;n=(m|0)<(b|0);do{if(n){o=m;p=l;do{p=+h[f+(o<<3)>>3]>+h[f+(p<<3)>>3]?o:p;o=o+1|0;}while((o|0)<(b|0));if((p|0)==(l|0)){break}if(g){o=$(l,a)|0;q=$(p,a)|0;r=0;do{s=d+(r+o<<3)|0;k=+h[s>>3];t=d+(r+q<<3)|0;h[s>>3]=+h[t>>3];h[t>>3]=k;r=r+1|0;}while((r|0)<(a|0))}h[f+(p<<3)>>3]=+h[f+(l<<3)>>3];h[i+(p<<3)>>3]=+h[i+(l<<3)>>3];r=e+(l<<2)|0;q=c[r>>2]|0;o=e+(p<<2)|0;c[r>>2]=c[o>>2];c[o>>2]=q}}while(0);q=a-l|0;o=$(l,a)|0;r=d+(o+l<<3)|0;k=+kb(q,r);if(k==0.0){h[f+(l<<3)>>3]=0.0}else{u=+h[r>>3];if(u<0.0){v=-0.0-k}else{v=k}t=(l|0)<(a|0);if(t){s=l;do{w=d+(s+o<<3)|0;h[w>>3]=+h[w>>3]/v;s=s+1|0;}while((s|0)<(a|0));x=+h[r>>3]}else{x=u}h[r>>3]=x+1.0;a:do{if(n){s=q-1|0;if(t){y=m}else{w=m;while(1){z=f+(w<<3)|0;k=+h[z>>3];do{if(k!=0.0){A=($(w,a)|0)+l|0;B=+h[d+(A<<3)>>3]/k;C=1.0-B*B;B=k*+P(C>0.0?C:0.0);h[z>>3]=B;D=i+(w<<3)|0;C=B/+h[D>>3];if(C*C*.05>2.220446049250313e-16){break}C=+kb(s,d+(A+1<<3)|0);h[z>>3]=C;h[D>>3]=C}}while(0);w=w+1|0;if((w|0)>=(b|0)){break a}}}do{w=$(y,a)|0;p=l;k=0.0;do{k=k+ +h[d+(p+o<<3)>>3]*+h[d+(p+w<<3)>>3];p=p+1|0;}while((p|0)<(a|0));C=k/+h[r>>3];p=$(y,a)|0;w=l;do{z=d+(w+p<<3)|0;h[z>>3]=+h[z>>3]-C*+h[d+(w+o<<3)>>3];w=w+1|0;}while((w|0)<(a|0));w=f+(y<<3)|0;C=+h[w>>3];do{if(C!=0.0){p=($(y,a)|0)+l|0;k=+h[d+(p<<3)>>3]/C;B=1.0-k*k;k=C*+P(B>0.0?B:0.0);h[w>>3]=k;z=i+(y<<3)|0;B=k/+h[z>>3];if(B*B*.05>2.220446049250313e-16){break}B=+kb(s,d+(p+1<<3)|0);h[w>>3]=B;h[z>>3]=B}}while(0);y=y+1|0;}while((y|0)<(b|0))}}while(0);h[f+(l<<3)>>3]=-0.0-v}if((m|0)<(j|0)){l=m}else{break}}return}function mb(a,b,d,e,f,g,i,j,k,l,m,n){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;i=+i;j=j|0;k=k|0;l=l|0;m=m|0;n=n|0;var o=0,p=0,q=0,r=0,s=0,t=0.0,u=0,v=0,w=0,x=0,y=0,z=0.0,A=0.0,B=0.0,C=0,D=0.0,E=0.0,F=0.0,G=0.0,H=0.0,I=0.0,J=0.0,K=0,L=0,M=0,N=0.0,Q=0.0,R=0.0;o=(a|0)>0;do{if(o){p=a;q=0;do{r=m+(q<<3)|0;h[r>>3]=+h[g+(q<<3)>>3];s=+h[b+(($(q,d)|0)+q<<3)>>3]==0.0&(p|0)==(a|0);p=s?q:p;if((p|0)<(a|0)){h[r>>3]=0.0}q=q+1|0;}while((q|0)<(a|0));a:do{if((p|0)>0){q=p;do{q=q-1|0;r=m+(q<<3)|0;s=$(q,d)|0;t=+h[r>>3]/+h[b+(s+q<<3)>>3];h[r>>3]=t;r=(q|0)>0;if(r){u=0}else{break a}do{v=m+(u<<3)|0;h[v>>3]=+h[v>>3]-t*+h[b+(u+s<<3)>>3];u=u+1|0;}while((u|0)<(q|0))}while(r)}}while(0);if(o){w=0}else{x=p;break}do{h[k+(c[e+(w<<2)>>2]<<3)>>3]=+h[m+(w<<3)>>3];w=w+1|0;}while((w|0)<(a|0));if(o){y=0}else{x=p;break}while(1){h[n+(y<<3)>>3]=+h[f+(y<<3)>>3]*+h[k+(y<<3)>>3];q=y+1|0;if((q|0)<(a|0)){y=q}else{x=p;break}}}else{x=a}}while(0);t=+kb(a,n);z=t-i;A=i*.1;if(!(z>A)){h[j>>3]=0.0;return}if((x|0)<(a|0)){B=0.0}else{do{if(o){x=0;do{y=c[e+(x<<2)>>2]|0;h[m+(x<<3)>>3]=+h[f+(y<<3)>>3]*+h[n+(y<<3)>>3]/t;x=x+1|0;}while((x|0)<(a|0));if(o){C=0}else{break}do{x=$(C,d)|0;if((C|0)>0){y=0;D=0.0;while(1){E=D+ +h[b+(y+x<<3)>>3]*+h[m+(y<<3)>>3];w=y+1|0;if((w|0)<(C|0)){y=w;D=E}else{F=E;break}}}else{F=0.0}y=m+(C<<3)|0;h[y>>3]=(+h[y>>3]-F)/+h[b+(x+C<<3)>>3];C=C+1|0;}while((C|0)<(a|0))}}while(0);F=+kb(a,m);B=z/i/F/F}if(o){C=0;do{y=$(C,d)|0;w=0;F=0.0;do{F=F+ +h[b+(w+y<<3)>>3]*+h[g+(w<<3)>>3];w=w+1|0;}while((w|0)<=(C|0));h[m+(C<<3)>>3]=F/+h[f+(c[e+(C<<2)>>2]<<3)>>3];C=C+1|0;}while((C|0)<(a|0))}D=+kb(a,m);E=D/i;if(E==0.0){G=2.2250738585072014e-308/(i<=.1?i:.1)}else{G=E}E=+h[j>>3];H=E<B?B:E;h[j>>3]=H;E=H>G?G:H;if(E==0.0){I=D/t}else{I=E}h[j>>3]=I;E=G;G=B;C=0;B=z;z=I;while(1){if(z==0.0){I=E*.001;t=I>2.2250738585072014e-308?I:2.2250738585072014e-308;h[j>>3]=t;J=t}else{J=z}t=+P(J);do{if(o){w=0;do{h[m+(w<<3)>>3]=t*+h[f+(w<<3)>>3];w=w+1|0;}while((w|0)<(a|0));nb(a,b,d,e,m,g,k,l,n);if(o){K=0}else{break}do{h[n+(K<<3)>>3]=+h[f+(K<<3)>>3]*+h[k+(K<<3)>>3];K=K+1|0;}while((K|0)<(a|0))}else{nb(a,b,d,e,m,g,k,l,n)}}while(0);t=+kb(a,n);F=t-i;if(!(+O(+F)>A)){L=56;break}if(G==0.0){if(F<=B&B<0.0|(C|0)==10){L=56;break}}else{if((C|0)==10){L=56;break}}b:do{if(o){w=0;do{x=c[e+(w<<2)>>2]|0;h[m+(w<<3)>>3]=+h[f+(x<<3)>>3]*+h[n+(x<<3)>>3]/t;w=w+1|0;}while((w|0)<(a|0));if(o){M=0}else{break}while(1){w=m+(M<<3)|0;I=+h[w>>3]/+h[l+(M<<3)>>3];h[w>>3]=I;x=M+1|0;y=(x|0)<(a|0);if(!y){break b}u=$(M,d)|0;p=x;D=I;while(1){q=m+(p<<3)|0;h[q>>3]=+h[q>>3]- +h[b+(p+u<<3)>>3]*D;q=p+1|0;if((q|0)>=(a|0)){break}p=q;D=+h[w>>3]}if(y){M=x}else{break}}}}while(0);t=+kb(a,m);D=F/i/t/t;do{if(F>0.0){t=+h[j>>3];N=E;Q=G<t?t:G;R=t}else{t=+h[j>>3];if(!(F<0.0)){N=E;Q=G;R=t;break}N=E>t?t:E;Q=G;R=t}}while(0);t=D+R;I=Q<t?t:Q;h[j>>3]=I;E=N;G=Q;C=C+1|0;B=F;z=I}if((L|0)==56){return}}function nb(a,b,d,e,f,g,i,j,k){a=a|0;b=b|0;d=d|0;e=e|0;f=f|0;g=g|0;i=i|0;j=j|0;k=k|0;var l=0,m=0,n=0,o=0,p=0,q=0.0,r=0,s=0.0,t=0.0,u=0.0,v=0,w=0,x=0,y=0.0,z=0.0,A=0.0,B=0.0,C=0,D=0,E=0,F=0.0,G=0,H=0,I=0.0,J=0;l=(a|0)>0;if(l){m=0}else{return}do{n=$(m,d)|0;o=m;do{h[b+(o+n<<3)>>3]=+h[b+(($(o,d)|0)+m<<3)>>3];o=o+1|0;}while((o|0)<(a|0));h[i+(m<<3)>>3]=+h[b+(n+m<<3)>>3];h[k+(m<<3)>>3]=+h[g+(m<<3)>>3];m=m+1|0;}while((m|0)<(a|0));if(!l){return}m=a<<3;g=0;do{o=j+(g<<3)|0;p=e+(g<<2)|0;a:do{if(!(+h[f+(c[p>>2]<<3)>>3]==0.0)){sb(o|0,0,m+(g*-8|0)|0)|0;q=+h[f+(c[p>>2]<<3)>>3];h[o>>3]=q;r=g;s=0.0;t=q;while(1){do{if(t==0.0){u=s;v=r+1|0}else{w=$(r,d)|0;x=b+(w+r<<3)|0;q=+h[x>>3];if(+O(+q)<+O(+t)){y=q/t;z=1.0/+P(y*y+1.0);A=y*z;B=z}else{z=t/q;y=1.0/+P(z*z+1.0);A=y;B=z*y}h[x>>3]=A*q+B*t;x=k+(r<<3)|0;q=+h[x>>3];y=-0.0-B;z=s*A+q*y;h[x>>3]=s*B+A*q;x=r+1|0;if((x|0)<(a|0)){C=x}else{u=z;v=x;break}while(1){D=b+(C+w<<3)|0;q=+h[D>>3];E=j+(C<<3)|0;F=+h[E>>3];h[E>>3]=q*y+A*F;h[D>>3]=A*q+B*F;D=C+1|0;if((D|0)<(a|0)){C=D}else{u=z;v=x;break}}}}while(0);if((v|0)>=(a|0)){break a}r=v;s=u;t=+h[j+(v<<3)>>3]}}}while(0);p=b+(($(g,d)|0)+g<<3)|0;h[o>>3]=+h[p>>3];h[p>>3]=+h[i+(g<<3)>>3];g=g+1|0;}while((g|0)<(a|0));if(l){G=a;H=0}else{return}do{G=+h[j+(H<<3)>>3]==0.0&(G|0)==(a|0)?H:G;if((G|0)<(a|0)){h[k+(H<<3)>>3]=0.0}H=H+1|0;}while((H|0)<(a|0));if((G|0)>0){H=G;while(1){g=H-1|0;if((H|0)<(G|0)){v=$(g,d)|0;u=0.0;C=H;while(1){B=u+ +h[b+(C+v<<3)>>3]*+h[k+(C<<3)>>3];f=C+1|0;if((f|0)<(G|0)){u=B;C=f}else{I=B;break}}}else{I=0.0}C=k+(g<<3)|0;h[C>>3]=(+h[C>>3]-I)/+h[j+(g<<3)>>3];if((g|0)>0){H=g}else{break}}}if(l){J=0}else{return}do{h[i+(c[e+(J<<2)>>2]<<3)>>3]=+h[k+(J<<3)>>3];J=J+1|0;}while((J|0)<(a|0));return}function ob(a){a=a|0;var 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0}}while(0);c[Fa>>2]=da;c[Ea+12>>2]=da;c[da+8>>2]=Ea;c[da+12>>2]=ca;break}K=da;m=_>>>8;do{if((m|0)==0){Ia=0}else{if(_>>>0>16777215>>>0){Ia=31;break}S=(m+1048320|0)>>>16&8;Y=m<<S;W=(Y+520192|0)>>>16&4;Z=Y<<W;Y=(Z+245760|0)>>>16&2;Q=14-(W|S|Y)+(Z<<Y>>>15)|0;Ia=_>>>((Q+7|0)>>>0)&1|Q<<1}}while(0);m=2096+(Ia<<2)|0;c[da+28>>2]=Ia;c[da+20>>2]=0;c[da+16>>2]=0;ca=c[449]|0;Q=1<<Ia;if((ca&Q|0)==0){c[449]=ca|Q;c[m>>2]=K;c[da+24>>2]=m;c[da+12>>2]=da;c[da+8>>2]=da;break}if((Ia|0)==31){Ka=0}else{Ka=25-(Ia>>>1)|0}Q=_<<Ka;ca=c[m>>2]|0;while(1){if((c[ca+4>>2]&-8|0)==(_|0)){break}La=ca+16+(Q>>>31<<2)|0;m=c[La>>2]|0;if((m|0)==0){T=331;break}else{Q=Q<<1;ca=m}}if((T|0)==331){if(La>>>0<(c[452]|0)>>>0){na();return 0}else{c[La>>2]=K;c[da+24>>2]=ca;c[da+12>>2]=da;c[da+8>>2]=da;break}}Q=ca+8|0;_=c[Q>>2]|0;m=c[452]|0;if(ca>>>0<m>>>0){na();return 0}if(_>>>0<m>>>0){na();return 0}else{c[_+12>>2]=K;c[Q>>2]=K;c[da+8>>2]=_;c[da+12>>2]=ca;c[da+24>>2]=0;break}}}while(0);da=c[451]|0;if(!(da>>>0>o>>>0)){break}_=da-o|0;c[451]=_;da=c[454]|0;Q=da;c[454]=Q+o;c[Q+(o+4)>>2]=_|1;c[da+4>>2]=o|3;n=da+8|0;return n|0}}while(0);c[(Ha()|0)>>2]=12;n=0;return n|0}function pb(a){a=a|0;var 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a}else{if(p>>>0<(c[452]|0)>>>0){na()}k=p+16|0;if((c[k>>2]|0)==(t|0)){c[k>>2]=A}else{c[p+20>>2]=A}if((A|0)==0){q=n;r=o;break a}}}while(0);if(A>>>0<(c[452]|0)>>>0){na()}c[A+24>>2]=p;t=c[a+(l+16)>>2]|0;do{if((t|0)!=0){if(t>>>0<(c[452]|0)>>>0){na()}else{c[A+16>>2]=t;c[t+24>>2]=A;break}}}while(0);t=c[a+(l+20)>>2]|0;if((t|0)==0){q=n;r=o;break}if(t>>>0<(c[452]|0)>>>0){na()}else{c[A+20>>2]=t;c[t+24>>2]=A;q=n;r=o;break}}else{q=d;r=h}}while(0);d=q;if(!(d>>>0<i>>>0)){na()}A=a+(h-4)|0;e=c[A>>2]|0;if((e&1|0)==0){na()}do{if((e&2|0)==0){if((j|0)==(c[454]|0)){B=(c[451]|0)+r|0;c[451]=B;c[454]=q;c[q+4>>2]=B|1;if((q|0)!=(c[453]|0)){return}c[453]=0;c[450]=0;return}if((j|0)==(c[453]|0)){B=(c[450]|0)+r|0;c[450]=B;c[453]=q;c[q+4>>2]=B|1;c[d+B>>2]=B;return}B=(e&-8)+r|0;C=e>>>3;b:do{if(e>>>0<256>>>0){u=c[a+h>>2]|0;g=c[a+(h|4)>>2]|0;b=1832+(C<<1<<2)|0;do{if((u|0)!=(b|0)){if(u>>>0<(c[452]|0)>>>0){na()}if((c[u+12>>2]|0)==(j|0)){break}na()}}while(0);if((g|0)==(u|0)){c[448]=c[448]&~(1<<C);break}do{if((g|0)==(b|0)){D=g+8|0}else{if(g>>>0<(c[452]|0)>>>0){na()}f=g+8|0;if((c[f>>2]|0)==(j|0)){D=f;break}na()}}while(0);c[u+12>>2]=g;c[D>>2]=u}else{b=i;f=c[a+(h+16)>>2]|0;t=c[a+(h|4)>>2]|0;do{if((t|0)==(b|0)){p=a+(h+12)|0;v=c[p>>2]|0;if((v|0)==0){m=a+(h+8)|0;k=c[m>>2]|0;if((k|0)==0){E=0;break}else{F=k;G=m}}else{F=v;G=p}while(1){p=F+20|0;v=c[p>>2]|0;if((v|0)!=0){F=v;G=p;continue}p=F+16|0;v=c[p>>2]|0;if((v|0)==0){break}else{F=v;G=p}}if(G>>>0<(c[452]|0)>>>0){na()}else{c[G>>2]=0;E=F;break}}else{p=c[a+h>>2]|0;if(p>>>0<(c[452]|0)>>>0){na()}v=p+12|0;if((c[v>>2]|0)!=(b|0)){na()}m=t+8|0;if((c[m>>2]|0)==(b|0)){c[v>>2]=t;c[m>>2]=p;E=t;break}else{na()}}}while(0);if((f|0)==0){break}t=c[a+(h+20)>>2]|0;u=2096+(t<<2)|0;do{if((b|0)==(c[u>>2]|0)){c[u>>2]=E;if((E|0)!=0){break}c[449]=c[449]&~(1<<t);break b}else{if(f>>>0<(c[452]|0)>>>0){na()}g=f+16|0;if((c[g>>2]|0)==(b|0)){c[g>>2]=E}else{c[f+20>>2]=E}if((E|0)==0){break b}}}while(0);if(E>>>0<(c[452]|0)>>>0){na()}c[E+24>>2]=f;b=c[a+(h+8)>>2]|0;do{if((b|0)!=0){if(b>>>0<(c[452]|0)>>>0){na()}else{c[E+16>>2]=b;c[b+24>>2]=E;break}}}while(0);b=c[a+(h+12)>>2]|0;if((b|0)==0){break}if(b>>>0<(c[452]|0)>>>0){na()}else{c[E+20>>2]=b;c[b+24>>2]=E;break}}}while(0);c[q+4>>2]=B|1;c[d+B>>2]=B;if((q|0)!=(c[453]|0)){H=B;break}c[450]=B;return}else{c[A>>2]=e&-2;c[q+4>>2]=r|1;c[d+r>>2]=r;H=r}}while(0);r=H>>>3;if(H>>>0<256>>>0){d=r<<1;e=1832+(d<<2)|0;A=c[448]|0;E=1<<r;do{if((A&E|0)==0){c[448]=A|E;I=e;J=1832+(d+2<<2)|0}else{r=1832+(d+2<<2)|0;h=c[r>>2]|0;if(!(h>>>0<(c[452]|0)>>>0)){I=h;J=r;break}na()}}while(0);c[J>>2]=q;c[I+12>>2]=q;c[q+8>>2]=I;c[q+12>>2]=e;return}e=q;I=H>>>8;do{if((I|0)==0){K=0}else{if(H>>>0>16777215>>>0){K=31;break}J=(I+1048320|0)>>>16&8;d=I<<J;E=(d+520192|0)>>>16&4;A=d<<E;d=(A+245760|0)>>>16&2;r=14-(E|J|d)+(A<<d>>>15)|0;K=H>>>((r+7|0)>>>0)&1|r<<1}}while(0);I=2096+(K<<2)|0;c[q+28>>2]=K;c[q+20>>2]=0;c[q+16>>2]=0;r=c[449]|0;d=1<<K;do{if((r&d|0)==0){c[449]=r|d;c[I>>2]=e;c[q+24>>2]=I;c[q+12>>2]=q;c[q+8>>2]=q}else{if((K|0)==31){L=0}else{L=25-(K>>>1)|0}A=H<<L;J=c[I>>2]|0;while(1){if((c[J+4>>2]&-8|0)==(H|0)){break}M=J+16+(A>>>31<<2)|0;E=c[M>>2]|0;if((E|0)==0){N=129;break}else{A=A<<1;J=E}}if((N|0)==129){if(M>>>0<(c[452]|0)>>>0){na()}else{c[M>>2]=e;c[q+24>>2]=J;c[q+12>>2]=q;c[q+8>>2]=q;break}}A=J+8|0;B=c[A>>2]|0;E=c[452]|0;if(J>>>0<E>>>0){na()}if(B>>>0<E>>>0){na()}else{c[B+12>>2]=e;c[A>>2]=e;c[q+8>>2]=B;c[q+12>>2]=J;c[q+24>>2]=0;break}}}while(0);q=(c[456]|0)-1|0;c[456]=q;if((q|0)==0){O=2248}else{return}while(1){q=c[O>>2]|0;if((q|0)==0){break}else{O=q+8|0}}c[456]=-1;return}function 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Wc(a,b){a=+a;b=b|0;return+fa(19,+a,b|0)}function Xc(a){a=a|0;Pa[a&63]()}function Yc(){fa(0)}function Zc(){fa(1)}function _c(){fa(2)}function $c(){fa(3)}function ad(){fa(4)}function bd(){fa(5)}function cd(){fa(6)}function dd(){fa(7)}function ed(){fa(8)}function fd(){fa(9)}function gd(){fa(10)}function hd(){fa(11)}function id(){fa(12)}function jd(){fa(13)}function kd(){fa(14)}function ld(){fa(15)}function md(){fa(16)}function nd(){fa(17)}function od(){fa(18)}function pd(){fa(19)}function qd(a,b,c){a=a|0;b=b|0;c=c|0;return Qa[a&63](b|0,c|0)|0}function rd(a,b){a=a|0;b=b|0;return fa(0,a|0,b|0)|0}function sd(a,b){a=a|0;b=b|0;return fa(1,a|0,b|0)|0}function td(a,b){a=a|0;b=b|0;return fa(2,a|0,b|0)|0}function ud(a,b){a=a|0;b=b|0;return fa(3,a|0,b|0)|0}function vd(a,b){a=a|0;b=b|0;return fa(4,a|0,b|0)|0}function wd(a,b){a=a|0;b=b|0;return fa(5,a|0,b|0)|0}function xd(a,b){a=a|0;b=b|0;return fa(6,a|0,b|0)|0}function yd(a,b){a=a|0;b=b|0;return fa(7,a|0,b|0)|0}function zd(a,b){a=a|0;b=b|0;return fa(8,a|0,b|0)|0}function Ad(a,b){a=a|0;b=b|0;return fa(9,a|0,b|0)|0}function Bd(a,b){a=a|0;b=b|0;return fa(10,a|0,b|0)|0}function Cd(a,b){a=a|0;b=b|0;return fa(11,a|0,b|0)|0}function Dd(a,b){a=a|0;b=b|0;return fa(12,a|0,b|0)|0}function Ed(a,b){a=a|0;b=b|0;return fa(13,a|0,b|0)|0}function Fd(a,b){a=a|0;b=b|0;return fa(14,a|0,b|0)|0}function Gd(a,b){a=a|0;b=b|0;return fa(15,a|0,b|0)|0}function Hd(a,b){a=a|0;b=b|0;return fa(16,a|0,b|0)|0}function Id(a,b){a=a|0;b=b|0;return fa(17,a|0,b|0)|0}function Jd(a,b){a=a|0;b=b|0;return fa(18,a|0,b|0)|0}function Kd(a,b){a=a|0;b=b|0;return fa(19,a|0,b|0)|0}function Ld(a,b,c,d,e){a=a|0;b=b|0;c=c|0;d=d|0;e=e|0;aa(0)}function Md(a){a=a|0;aa(1)}function Nd(a){a=a|0;aa(2);return 0}function Od(a,b){a=+a;b=b|0;aa(3);return 0.0}function Pd(){aa(4)}function Qd(a,b){a=a|0;b=b|0;aa(5);return 0}
  
  
  
  
  // EMSCRIPTEN_END_FUNCS
  var La=[Ld,Ld,ub,Ld,vb,Ld,wb,Ld,xb,Ld,yb,Ld,zb,Ld,Ab,Ld,Bb,Ld,Cb,Ld,Db,Ld,Eb,Ld,Fb,Ld,Gb,Ld,Hb,Ld,Ib,Ld,Jb,Ld,Kb,Ld,Lb,Ld,Mb,Ld,Nb,Ld,hb,Ld,Ld,Ld,Ld,Ld,Ld,Ld,Ld,Ld,Ld,Ld,Ld,Ld,Ld,Ld,Ld,Ld,Ld,Ld,Ld,Ld];var Ma=[Md,Md,Pb,Md,Qb,Md,Rb,Md,Sb,Md,Tb,Md,Ub,Md,Vb,Md,Wb,Md,Xb,Md,Yb,Md,Zb,Md,_b,Md,$b,Md,ac,Md,bc,Md,cc,Md,dc,Md,ec,Md,fc,Md,gc,Md,Md,Md,Md,Md,Md,Md,Md,Md,Md,Md,Md,Md,Md,Md,Md,Md,Md,Md,Md,Md,Md,Md];var Na=[Nd,Nd,ic,Nd,jc,Nd,kc,Nd,lc,Nd,mc,Nd,nc,Nd,oc,Nd,pc,Nd,qc,Nd,rc,Nd,sc,Nd,tc,Nd,uc,Nd,vc,Nd,wc,Nd,xc,Nd,yc,Nd,zc,Nd,Ac,Nd,Bc,Nd,Nd,Nd,Nd,Nd,Nd,Nd,Nd,Nd,Nd,Nd,Nd,Nd,Nd,Nd,Nd,Nd,Nd,Nd,Nd,Nd,Nd,Nd];var Oa=[Od,Od,Dc,Od,Ec,Od,Fc,Od,Gc,Od,Hc,Od,Ic,Od,Jc,Od,Kc,Od,Lc,Od,Mc,Od,Nc,Od,Oc,Od,Pc,Od,Qc,Od,Rc,Od,Sc,Od,Tc,Od,Uc,Od,Vc,Od,Wc,Od,Od,Od,Od,Od,Od,Od,Od,Od,Od,Od,Od,Od,Od,Od,Od,Od,Od,Od,Od,Od,Od,Od];var Pa=[Pd,Pd,Yc,Pd,Zc,Pd,_c,Pd,$c,Pd,ad,Pd,bd,Pd,cd,Pd,dd,Pd,ed,Pd,fd,Pd,gd,Pd,hd,Pd,id,Pd,jd,Pd,kd,Pd,ld,Pd,md,Pd,nd,Pd,od,Pd,pd,Pd,Pd,Pd,Pd,Pd,Pd,Pd,Pd,Pd,Pd,Pd,Pd,Pd,Pd,Pd,Pd,Pd,Pd,Pd,Pd,Pd,Pd,Pd];var Qa=[Qd,Qd,rd,Qd,sd,Qd,td,Qd,ud,Qd,vd,Qd,wd,Qd,xd,Qd,yd,Qd,zd,Qd,Ad,Qd,Bd,Qd,Cd,Qd,Dd,Qd,Ed,Qd,Fd,Qd,Gd,Qd,Hd,Qd,Id,Qd,Jd,Qd,Kd,Qd,Qd,Qd,Qd,Qd,Qd,Qd,Qd,Qd,Qd,Qd,Qd,Qd,Qd,Qd,Qd,Qd,Qd,Qd,Qd,Qd,Qd,Qd];return{_strlen:rb,_free:pb,_memset:sb,_do_fit:gb,_malloc:ob,_memcpy:qb,runPostSets:fb,stackAlloc:Ra,stackSave:Sa,stackRestore:Ta,setThrew:Ua,setTempRet0:Xa,setTempRet1:Ya,setTempRet2:Za,setTempRet3:_a,setTempRet4:$a,setTempRet5:ab,setTempRet6:bb,setTempRet7:cb,setTempRet8:db,setTempRet9:eb,dynCall_viiiii:tb,dynCall_vi:Ob,dynCall_ii:hc,dynCall_ddi:Cc,dynCall_v:Xc,dynCall_iii:qd}})
  
  
  // EMSCRIPTEN_END_ASM
  ({ "Math": Math, "Int8Array": Int8Array, "Int16Array": Int16Array, "Int32Array": Int32Array, "Uint8Array": Uint8Array, "Uint16Array": Uint16Array, "Uint32Array": Uint32Array, "Float32Array": Float32Array, "Float64Array": Float64Array }, { "abort": abort, "assert": assert, "asmPrintInt": asmPrintInt, "asmPrintFloat": asmPrintFloat, "min": Math_min, "jsCall": jsCall, "invoke_viiiii": invoke_viiiii, "invoke_vi": invoke_vi, "invoke_ii": invoke_ii, "invoke_ddi": invoke_ddi, "invoke_v": invoke_v, "invoke_iii": invoke_iii, "_sysconf": _sysconf, "_abort": _abort, "_fprintf": _fprintf, "_sqrt": _sqrt, "_printf": _printf, "_fflush": _fflush, "__reallyNegative": __reallyNegative, "_fputc": _fputc, "_fabs": _fabs, "___setErrNo": ___setErrNo, "_fwrite": _fwrite, "_send": _send, "_write": _write, "_fputs": _fputs, "__formatString": __formatString, "_emscripten_memcpy_big": _emscripten_memcpy_big, "_fileno": _fileno, "_pwrite": _pwrite, "_putchar": _putchar, "_puts": _puts, "_sbrk": _sbrk, "___errno_location": ___errno_location, "_mkport": _mkport, "_time": _time, "STACKTOP": STACKTOP, "STACK_MAX": STACK_MAX, "tempDoublePtr": tempDoublePtr, "ABORT": ABORT, "NaN": NaN, "Infinity": Infinity, "_stdout": _stdout, "_stderr": _stderr }, buffer);
  var _strlen = Module["_strlen"] = asm["_strlen"];
  var _free = Module["_free"] = asm["_free"];
  var _memset = Module["_memset"] = asm["_memset"];
  var _do_fit = Module["_do_fit"] = asm["_do_fit"];
  var _malloc = Module["_malloc"] = asm["_malloc"];
  var _memcpy = Module["_memcpy"] = asm["_memcpy"];
  var runPostSets = Module["runPostSets"] = asm["runPostSets"];
  var dynCall_viiiii = Module["dynCall_viiiii"] = asm["dynCall_viiiii"];
  var dynCall_vi = Module["dynCall_vi"] = asm["dynCall_vi"];
  var dynCall_ii = Module["dynCall_ii"] = asm["dynCall_ii"];
  var dynCall_ddi = Module["dynCall_ddi"] = asm["dynCall_ddi"];
  var dynCall_v = Module["dynCall_v"] = asm["dynCall_v"];
  var dynCall_iii = Module["dynCall_iii"] = asm["dynCall_iii"];
  
  Runtime.stackAlloc = function(size) { return asm['stackAlloc'](size) };
  Runtime.stackSave = function() { return asm['stackSave']() };
  Runtime.stackRestore = function(top) { asm['stackRestore'](top) };
  
  // Warning: printing of i64 values may be slightly rounded! No deep i64 math used, so precise i64 code not included
  var i64Math = null;
  
  // === Auto-generated postamble setup entry stuff ===
  
  if (memoryInitializer) {
    function applyData(data) {
      HEAPU8.set(data, STATIC_BASE);
    }
    if (ENVIRONMENT_IS_NODE || ENVIRONMENT_IS_SHELL) {
      applyData(Module['readBinary'](memoryInitializer));
    } else {
      addRunDependency('memory initializer');
      Browser.asyncLoad(memoryInitializer, function(data) {
        applyData(data);
        removeRunDependency('memory initializer');
      }, function(data) {
        throw 'could not load memory initializer ' + memoryInitializer;
      });
    }
  }
  
  function ExitStatus(status) {
    this.name = "ExitStatus";
    this.message = "Program terminated with exit(" + status + ")";
    this.status = status;
  };
  ExitStatus.prototype = new Error();
  ExitStatus.prototype.constructor = ExitStatus;
  
  var initialStackTop;
  var preloadStartTime = null;
  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 (!Module['calledRun'] && shouldRunNow) run();
    if (!Module['calledRun']) dependenciesFulfilled = runCaller; // try this again later, after new deps are fulfilled
  }
  
  Module['callMain'] = Module.callMain = function callMain(args) {
    assert(runDependencies == 0, 'cannot call main when async dependencies remain! (listen on __ATMAIN__)');
    assert(__ATPRERUN__.length == 0, 'cannot call main when preRun functions remain to be called');
  
    args = args || [];
  
    if (ENVIRONMENT_IS_WEB && preloadStartTime !== null) {
      Module.printErr('preload time: ' + (Date.now() - preloadStartTime) + ' ms');
    }
  
    ensureInitRuntime();
  
    var argc = args.length+1;
    function pad() {
      for (var i = 0; i < 4-1; i++) {
        argv.push(0);
      }
    }
    var argv = [allocate(intArrayFromString("/bin/this.program"), 'i8', ALLOC_NORMAL) ];
    pad();
    for (var i = 0; i < argc-1; i = i + 1) {
      argv.push(allocate(intArrayFromString(args[i]), 'i8', ALLOC_NORMAL));
      pad();
    }
    argv.push(0);
    argv = allocate(argv, 'i32', ALLOC_NORMAL);
  
    initialStackTop = STACKTOP;
  
    try {
  
      var ret = Module['_main'](argc, argv, 0);
  
  
      // if we're not running an evented main loop, it's time to exit
      if (!Module['noExitRuntime']) {
        exit(ret);
      }
    }
    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
        Module['noExitRuntime'] = true;
        return;
      } else {
        if (e && typeof e === 'object' && e.stack) Module.printErr('exception thrown: ' + [e, e.stack]);
        throw e;
      }
    } finally {
      calledMain = true;
    }
  }
  
  
  
  
  function run(args) {
    args = args || Module['arguments'];
  
    if (preloadStartTime === null) preloadStartTime = Date.now();
  
    if (runDependencies > 0) {
      Module.printErr('run() called, but dependencies remain, so not running');
      return;
    }
  
    preRun();
  
    if (runDependencies > 0) return; // a preRun added a dependency, run will be called later
    if (Module['calledRun']) return; // run may have just been called through dependencies being fulfilled just in this very frame
  
    function doRun() {
      if (Module['calledRun']) return; // run may have just been called while the async setStatus time below was happening
      Module['calledRun'] = true;
  
      ensureInitRuntime();
  
      preMain();
  
      if (Module['_main'] && shouldRunNow) {
        Module['callMain'](args);
      }
  
      postRun();
    }
  
    if (Module['setStatus']) {
      Module['setStatus']('Running...');
      setTimeout(function() {
        setTimeout(function() {
          Module['setStatus']('');
        }, 1);
        if (!ABORT) doRun();
      }, 1);
    } else {
      doRun();
    }
  }
  Module['run'] = Module.run = run;
  
  function exit(status) {
    ABORT = true;
    EXITSTATUS = status;
    STACKTOP = initialStackTop;
  
    // exit the runtime
    exitRuntime();
  
    // TODO We should handle this differently based on environment.
    // In the browser, the best we can do is throw an exception
    // to halt execution, but in node we could process.exit and
    // I'd imagine SM shell would have something equivalent.
    // This would let us set a proper exit status (which
    // would be great for checking test exit statuses).
    // https://github.com/kripken/emscripten/issues/1371
  
    // throw an exception to halt the current execution
    throw new ExitStatus(status);
  }
  Module['exit'] = Module.exit = exit;
  
  function abort(text) {
    if (text) {
      Module.print(text);
      Module.printErr(text);
    }
  
    ABORT = true;
    EXITSTATUS = 1;
  
    throw 'abort() at ' + stackTrace();
  }
  Module['abort'] = Module.abort = abort;
  
  // {{PRE_RUN_ADDITIONS}}
  
  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;
  }
  
  
  run();
  
  // {{POST_RUN_ADDITIONS}}
  
  
  
  
  
  
  // {{MODULE_ADDITIONS}}
  
  
  
  
  
  /*
    data = {
        f: function (){}  model function
        n: 0              no. of params
      , par:[]            initial param guess
      , m: 0              no. of data points
      , t: []             array x-axis points
      , y: []             array y-axis points
    }
  */
  
  Module['fit'] = function (data) { // TODO: Accept strings
  
    var ret = {};
  
    /* wrap fitting function */
    var do_fit = cwrap('do_fit', 'number', ['number', 'number', 'number', 'number', 'number', 'number']);
  
    /* model function */
    var f = Runtime.addFunction(
      function (t, p) {
        /* get array values */
        var p_ = [];
        for (var i = 0; i < data.n; i++)
          p_[i] = getValue(p+i*8, 'double');
        /* model function evaluation */
        return data.f(t, p_);
      }
    );
  
    /* no. of params */
    var n = data.n;
  
    /* initial param guess */
    var par = data.par;
  
    /* no. of data points */
    var m = data.m;
  
    /* x-axis values */
    var t = data.t;
  
    /* y-axis values */
    var y = data.y;
    
    /* malloc enough space for the data */
    var par_ptr = _malloc(par.length * par.BYTES_PER_ELEMENT);
    var t_ptr = _malloc(t.length * t.BYTES_PER_ELEMENT);
    var y_ptr = _malloc(y.length * y.BYTES_PER_ELEMENT);
  
    // Copy data to Emscripten heap (directly accessed from Module.HEAPU8)
    var par_dataHeap = new Uint8Array(Module.HEAPU8.buffer, par_ptr, par.length * par.BYTES_PER_ELEMENT);
    var t_dataHeap = new Uint8Array(Module.HEAPU8.buffer, t_ptr, t.length * t.BYTES_PER_ELEMENT);
    var y_dataHeap = new Uint8Array(Module.HEAPU8.buffer, y_ptr, y.length * y.BYTES_PER_ELEMENT);
    
    par_dataHeap.set(new Uint8Array(par.buffer));
    t_dataHeap.set(new Uint8Array(t.buffer));
    y_dataHeap.set(new Uint8Array(y.buffer));
  
    ret.ret = do_fit(n, par_ptr, m, t_ptr, y_ptr, f);
  
    ret.params = [];
    for (var i = 0; i < par.length; i++)
      ret.params[i] = getValue(par_ptr+i*8, 'double');
    
    Runtime.removeFunction(f);
    /* free the heap buffer */
    _free(par_ptr);
    _free(t_ptr);
    _free(y_ptr);
  
    return ret;
  };
  
  