diff -r ce072f38628c -r fb3cd08bc7fb src/Interpreter.cpp
--- a/src/Interpreter.cpp	Sat Dec 22 16:42:20 2012 -0800
+++ b/src/Interpreter.cpp	Sat Dec 22 18:22:14 2012 -0800
@@ -446,8 +446,18 @@
 }
 
 case OP_JUMP:
+{
     top.pc += READ_INT32(top.pc);
     continue;
+}
+
+case OP_BREAK:
+case OP_CONTINUE:
+{
+    top.fp->leaveLoop(zone);
+    top.pc += READ_INT32(top.pc);
+    continue;
+}
 
 case OP_GETLOCAL:
 {
@@ -1065,6 +1075,18 @@
     break;
 }
 
+case OP_ENTERLOOP:
+{
+    top.fp->enterLoop(zone);
+    break;
+}
+
+case OP_LEAVELOOP:
+{
+    top.fp->leaveLoop(zone);
+    break;
+}
+
 default:
     assert(false);
     return false;