diff --git a/public/vm/Makefile b/public/vm/Makefile
index 5a0a3fc..d83d2f2 100644
--- a/public/vm/Makefile
+++ b/public/vm/Makefile
@@ -1,4 +1,4 @@
-FILES = c0vm.js bytecode-parser.js byte-stream.js opcodes.js c0ffi.js index.js 
+FILES = c0vm.js bytecode-parser.js byte-stream.js opcodes.js c0ffi.js index.js
 
 all: $(FILES)
 	browserify $(FILES) -o vm.js
diff --git a/public/vm/c0vm.js b/public/vm/c0vm.js
index 9f47047..fe73a80 100755
--- a/public/vm/c0vm.js
+++ b/public/vm/c0vm.js
@@ -3,7 +3,6 @@ op = require("./opcodes");
 var INT_MIN = 0x80000000;
 var INT_MAX = 0x7FFFFFFF;
 
-var verbose = false;
 function log(message) {
     if (verbose) console.log(message);
 }
@@ -499,7 +498,7 @@ function run_vm(vm) {
                 return vm;
             }
         }
-        
+
         var val = vm.step();
         if (val !== undefined) return val;
 
@@ -528,7 +527,7 @@ function execute(file, callbacks, v) {
 function push(v) {
   console.log("Pretend I pushed " + v);
 }
-  
+
 
 exports.execute = execute;
 exports.initialize_vm = initialize_vm;
diff --git a/public/vm/index.js b/public/vm/index.js
index 4b9d8ce..05d0232 100644
--- a/public/vm/index.js
+++ b/public/vm/index.js
@@ -2,56 +2,46 @@ parser = require("./bytecode-parser");
 c0vm = require("./c0vm.js");
 c0ffi = require("./c0ffi.js");
 
-// console.log("Reading in sample bytecode file:");
-// console.log(parser.getBytes("../test/test.bc0"));
-// console.log("That was the sample bytecode file" +
-//             " -- it probably took up your whole terminal screen.");
-// var file = parser.parse("../test/test.bc0");
-// console.log(file);
-// console.log(file.function_pool[0].code);
-
 // UI interaction functions
 
 function print(arg) {
-  // $("#output").append(arg);
-
   $("#output").val($("#output").val() + arg);
 }
 
 callbacks = c0ffi.default_callbacks;
 
 // conio
-callbacks[c0ffi.NATIVE_PRINT] = function(args) {
-  print(args[0]);
-  return 0;
-}
-callbacks[c0ffi.NATIVE_PRINTLN] = function(args) {
-  print(args[0]);
-  print("\n");
-}
-callbacks[c0ffi.NATIVE_PRINTBOOL] = function(args) {
-  if (args[0])
-    print("false");
-  else
-    print("true"); 
-}
-callbacks[c0ffi.NATIVE_PRINTCHAR] = function(args) {
-  print(String.fromCharCode(args[0]));
-}
-callbacks[c0ffi.NATIVE_READLINE] = function(args) {
-  return prompt("","");
-}
-callbacks[c0ffi.NATIVE_PRINTINT] = function(args) {
-  print(args[0]);
-}
+  callbacks[c0ffi.NATIVE_PRINT] = function(args) {
+    print(args[0]);
+    return 0;
+  }
+  callbacks[c0ffi.NATIVE_PRINTLN] = function(args) {
+    print(args[0]);
+    print("\n");
+  }
+  callbacks[c0ffi.NATIVE_PRINTBOOL] = function(args) {
+    if (args[0])
+      print("false");
+    else
+      print("true");
+  }
+  callbacks[c0ffi.NATIVE_PRINTCHAR] = function(args) {
+    print(String.fromCharCode(args[0]));
+  }
+  callbacks[c0ffi.NATIVE_READLINE] = function(args) {
+    return prompt("","");
+  }
+  callbacks[c0ffi.NATIVE_PRINTINT] = function(args) {
+    print(args[0]);
+  }
 
-console.log(callbacks);
+  console.log(callbacks);
 
 $("#run").click(function() {
   var input = $("#bytecode").val().replace(/(\r\n|\n|\r)/gm,"");
 
   $("#output").val("");
-  
+
   var file = parser.parse($("#bytecode").val());
-  print(c0vm.execute(file, callbacks));
+  c0vm.execute(file, callbacks, true);
 });
diff --git a/public/vm/vm.js b/public/vm/vm.js
index 2c76175..67c86b4 100644
--- a/public/vm/vm.js
+++ b/public/vm/vm.js
@@ -319,6 +319,10 @@ callbacks[exports.NATIVE_STRING_COMPARE] = function(args) {
   return 0;
 }
 
+callbacks[exports.NATIVE_STRING_EQUAL] = function(args) {
+  return args[0] === args[1];
+}
+
 exports.default_callbacks = callbacks;
 
 },{}],4:[function(require,module,exports){
@@ -327,7 +331,6 @@ op = require("./opcodes");
 var INT_MIN = 0x80000000;
 var INT_MAX = 0x7FFFFFFF;
 
-var verbose = false;
 function log(message) {
     if (verbose) console.log(message);
 }
@@ -823,7 +826,7 @@ function run_vm(vm) {
                 return vm;
             }
         }
-        
+
         var val = vm.step();
         if (val !== undefined) return val;
 
@@ -852,7 +855,7 @@ function execute(file, callbacks, v) {
 function push(v) {
   console.log("Pretend I pushed " + v);
 }
-  
+
 
 exports.execute = execute;
 exports.initialize_vm = initialize_vm;
@@ -864,58 +867,48 @@ parser = require("./bytecode-parser");
 c0vm = require("./c0vm.js");
 c0ffi = require("./c0ffi.js");
 
-// console.log("Reading in sample bytecode file:");
-// console.log(parser.getBytes("../test/test.bc0"));
-// console.log("That was the sample bytecode file" +
-//             " -- it probably took up your whole terminal screen.");
-// var file = parser.parse("../test/test.bc0");
-// console.log(file);
-// console.log(file.function_pool[0].code);
-
 // UI interaction functions
 
 function print(arg) {
-  // $("#output").append(arg);
-
   $("#output").val($("#output").val() + arg);
 }
 
 callbacks = c0ffi.default_callbacks;
 
 // conio
-callbacks[c0ffi.NATIVE_PRINT] = function(args) {
-  print(args[0]);
-  return 0;
-}
-callbacks[c0ffi.NATIVE_PRINTLN] = function(args) {
-  print(args[0]);
-  print("\n");
-}
-callbacks[c0ffi.NATIVE_PRINTBOOL] = function(args) {
-  if (args[0])
-    print("false");
-  else
-    print("true"); 
-}
-callbacks[c0ffi.NATIVE_PRINTCHAR] = function(args) {
-  print(String.fromCharCode(args[0]));
-}
-callbacks[c0ffi.NATIVE_READLINE] = function(args) {
-  return prompt("","");
-}
-callbacks[c0ffi.NATIVE_PRINTINT] = function(args) {
-  print(args[0]);
-}
+  callbacks[c0ffi.NATIVE_PRINT] = function(args) {
+    print(args[0]);
+    return 0;
+  }
+  callbacks[c0ffi.NATIVE_PRINTLN] = function(args) {
+    print(args[0]);
+    print("\n");
+  }
+  callbacks[c0ffi.NATIVE_PRINTBOOL] = function(args) {
+    if (args[0])
+      print("false");
+    else
+      print("true");
+  }
+  callbacks[c0ffi.NATIVE_PRINTCHAR] = function(args) {
+    print(String.fromCharCode(args[0]));
+  }
+  callbacks[c0ffi.NATIVE_READLINE] = function(args) {
+    return prompt("","");
+  }
+  callbacks[c0ffi.NATIVE_PRINTINT] = function(args) {
+    print(args[0]);
+  }
 
-console.log(callbacks);
+  console.log(callbacks);
 
 $("#run").click(function() {
   var input = $("#bytecode").val().replace(/(\r\n|\n|\r)/gm,"");
 
   $("#output").val("");
-  
+
   var file = parser.parse($("#bytecode").val());
-  print(c0vm.execute(file, callbacks));
+  c0vm.execute(file, callbacks, true);
 });
 
 },{"./bytecode-parser":2,"./c0ffi.js":3,"./c0vm.js":4}],6:[function(require,module,exports){