diff -r 40746ab0a30b -r ef5492aa8d8b jitcraft/Interpreter.cpp
--- a/jitcraft/Interpreter.cpp	Sat Jul 14 21:01:52 2012 -0700
+++ b/jitcraft/Interpreter.cpp	Sun Jul 15 14:40:11 2012 -0700
@@ -407,11 +407,13 @@
     top.sp--;
     break;
 
-case OP_CALLGLOBAL:
+case OP_CALL:
 {
     zone->heap().reclaim();
-    unsigned index = READ_UINT32(top.pc);
-    Local<Function> newFun(zone, top.fp->code()->module()->getFunction(index));
+
+    Local<Function> newFun(zone, top.sp[-1].fun);
+    top.sp--;
+
     if (!zone->stack().pushInlineFrame(newFun))
         goto error;
 
@@ -690,6 +692,19 @@
     break;
 }
 
+case OP_MODULE:
+{
+    top.sp++;
+    top.sp[-1].module = top.fp->code()->module();
+    break;
+}
+
+case OP_GETMODULE_FN:
+{
+    top.sp[-1].fun = top.sp[-1].module->getFunction(READ_UINT32(top.pc));
+    break;
+}
+
 default:
     assert(false);
     return false;