changed because Mitchell broke things

public/vm/Makefile

@@ -1,4 +1,7 @@
-FILES = c0vm.js bytecode-parser.js byte-stream.js opcodes.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
+
+clean:
+	rm -f vm.js

public/vm/index.js

@@ -16,7 +16,7 @@ function print(arg) {
   $("#output").append(arg);
 }
 
-callbacks = {};
+callbacks = c0ffi.default_callbacks;
 callbacks[c0ffi.NATIVE_PRINT] = function(args) {
   print(args[0]);
   print("<br />");
@@ -33,6 +33,9 @@ console.log(callbacks);
 
 $("#run").click(function() {
   var input = $("#bytecode").html().replace(/(\r\n|\n|\r)/gm,"");
+
+  $("#output").text("");
+  
   var file = parser.parse($("#bytecode").text());
   print("<br />");
   print(c0vm.execute(file, callbacks));

public/vm/vm.js

@@ -299,7 +299,6 @@ function i32_to_array(i32) {
             ((i32 >> 8) & 0xFF),
             ((i32 >> 16) & 0xFF),
             ((i32 >> 24) & 0xFF)];
-            
 }
 
 function array_to_i32(array) {
@@ -334,13 +333,13 @@ var ProgramState = function(parsed_file, callback_dict) {
         try {
             this.natives[i] = callback_dict[i];
         } catch (key_not_found) {
-            this.natives[i] = function (arg) { 
+            this.natives[i] = function (arg) {
                 console.log("Native function " + name + " called, ran method stub.");
                 return 0;
             };
         }
     }
-    
+
     // Memory is just a big array of bytes, right?
     // "Allocation" is appending onto this array
     // A pointer to memory is an index into this array.
@@ -409,7 +408,7 @@ ProgramState.prototype.step = function() {
     case op.BIPUSH:
         this.frame.pc += 2;
         var val = this.frame.program[this.frame.pc-1];
-        
+
         // Do sign extension if necessary
         if ((val & 0x80) != 0)
             val = -0x80 + (val & 0x7F);
@@ -611,7 +610,7 @@ ProgramState.prototype.step = function() {
             };
             console.log("Unknown native function index " + f.function_table_index);
         }
-        log("Calling native function with index " + index + " with arguments " + 
+        log("Calling native function with index " + index + " with arguments " +
             arg_array);
         this.push(native_function(arg_array));
         break;
@@ -623,7 +622,7 @@ ProgramState.prototype.step = function() {
         var address = this.heap.length;
 
         for (var i = 0; i < size; i++) this.heap.push(0);
-        
+
         this.push(address);
         this.frame.pc += 2;
         break;
@@ -636,7 +635,7 @@ ProgramState.prototype.step = function() {
 
         this.heap.push(num_elements);
         this.heap.push(size);
-        
+
         for (var i = 0; i < num_elements; i++) {
             for (var j = 0; j < size; j++)
                 this.heap.push(0);
@@ -752,7 +751,7 @@ function execute(file, callbacks, v) {
     if (verbose) log(file);
 
     log("Beginning execution");
-    
+
     while (true) {
         var val = state.step();
         if (val !== undefined) return val;
@@ -771,7 +770,7 @@ function execute(file, callbacks, v) {
         //   save state (maybe in a global in this file?)
         //   return;
         // }
-    }        
+    }
 }
 
 exports.execute = execute;
@@ -795,7 +794,7 @@ function print(arg) {
   $("#output").append(arg);
 }
 
-callbacks = {};
+callbacks = c0ffi.default_callbacks;
 callbacks[c0ffi.NATIVE_PRINT] = function(args) {
   print(args[0]);
   print("<br />");
@@ -812,6 +811,9 @@ console.log(callbacks);
 
 $("#run").click(function() {
   var input = $("#bytecode").html().replace(/(\r\n|\n|\r)/gm,"");
+
+  $("#output").text("");
+  
   var file = parser.parse($("#bytecode").text());
   print("<br />");
   print(c0vm.execute(file, callbacks));
@@ -926,4 +928,4 @@ exports.lookup_table = {
 
 },{}],7:[function(require,module,exports){
 
-},{}]},{},[4,2,1,6,5]);
+},{}]},{},[4,2,1,6,3,5]);