diff --git a/simple-virtual-machine.ipr b/simple-virtual-machine.ipr
index 837e224..393f27d 100644
--- a/simple-virtual-machine.ipr
+++ b/simple-virtual-machine.ipr
@@ -1,8 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="CompilerConfiguration">
-    <option name="DEFAULT_COMPILER" value="Javac" />
-    <resourceExtensions />
     <wildcardResourcePatterns>
       <entry name="!?*.java" />
       <entry name="!?*.form" />
@@ -13,21 +11,23 @@
       <entry name="!?*.kt" />
       <entry name="!?*.clj" />
     </wildcardResourcePatterns>
-    <annotationProcessing>
-      <profile default="true" name="Default" enabled="false">
-        <processorPath useClasspath="true" />
-      </profile>
-    </annotationProcessing>
   </component>
   <component name="CopyrightManager" default="" />
   <component name="DependencyValidationManager">
     <option name="SKIP_IMPORT_STATEMENTS" value="false" />
   </component>
   <component name="Encoding" useUTFGuessing="true" native2AsciiForPropertiesFiles="false" />
-  <component name="EntryPointsManager">
-    <entry_points version="2.0" />
-  </component>
   <component name="IdProvider" IDEtalkID="97D7DBFBCE4D11CA285C5356222AF1E5" />
+  <component name="InspectionProjectProfileManager">
+    <profile version="1.0">
+      <option name="myName" value="Project Default" />
+    </profile>
+    <version value="1.0" />
+  </component>
+  <component name="KotlinCommonCompilerArguments">
+    <option name="languageVersion" value="1.1" />
+    <option name="apiVersion" value="1.1" />
+  </component>
   <component name="Palette2">
     <group name="Swing">
       <item class="com.intellij.uiDesigner.HSpacer" tooltip-text="Horizontal Spacer" icon="/com/intellij/uiDesigner/icons/hspacer.png" removable="false" auto-create-binding="false" can-attach-label="false">
@@ -154,7 +154,7 @@
       <module fileurl="file://$PROJECT_DIR$/simple-virtual-machine.iml" filepath="$PROJECT_DIR$/simple-virtual-machine.iml" />
     </modules>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_6" assert-keyword="true" jdk-15="true" project-jdk-name="1.7" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_6" project-jdk-name="1.7" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
   <component name="VcsDirectoryMappings">
diff --git a/src/vm/Test.java b/src/vm/Test.java
index 89c176b..644292a 100644
--- a/src/vm/Test.java
+++ b/src/vm/Test.java
@@ -120,7 +120,7 @@ public class Test {
 
 	public static void main(String[] args) {
 		VM vm = new VM(factorial, 0, factorial_metadata);
-		vm.trace = false;
+		vm.trace = true;
 		vm.exec(factorial_metadata[0].address);
 
 		vm = new VM(f, 2, f_metadata);
diff --git a/src/vm/VM.java b/src/vm/VM.java
index 6c3e063..87df7c9 100644
--- a/src/vm/VM.java
+++ b/src/vm/VM.java
@@ -111,8 +111,9 @@ protected void cpu() {
 				case ICONST:
 					stack[++sp] = code[ip++]; // push operand
 					break;
-				case LOAD : // load local or arg; 1st local is fp+1, args are fp-3, fp-4, fp-5, ...
-                    load();
+				case LOAD : // load local or arg
+					regnum = code[ip++];
+					stack[++sp] = ctx.locals[regnum];
 					break;
 				case GLOAD :// load from global memory
 					addr = code[ip++];
@@ -159,12 +160,6 @@ protected void cpu() {
 		if ( trace ) dumpDataMemory();
 	}
 
-    private void load() {
-        int regnum;
-        regnum = code[ip++];
-        stack[++sp] = ctx.locals[regnum];
-    }
-
 	protected String stackString() {
 		StringBuilder buf = new StringBuilder();
 		buf.append("stack=[");
@@ -195,7 +190,10 @@ protected String disInstr() {
 		StringBuilder buf = new StringBuilder();
 		buf.append(String.format("%04d:\t%-11s", ip, opName));
 		int nargs = Bytecode.instructions[opcode].n;
-		if ( nargs>0 ) {
+		if ( opcode==CALL ) {
+			buf.append(metadata[code[ip+1]].name);
+		}
+		else if ( nargs>0 ) {
 			List<String> operands = new ArrayList<String>();
 			for (int i=ip+1; i<=ip+nargs; i++) {
 				operands.add(String.valueOf(code[i]));