diff --git a/SMILEBASIC/SMILEBASIC.visualdproj b/SMILEBASIC/SMILEBASIC.visualdproj
index e59c89c..9f6e23a 100644
--- a/SMILEBASIC/SMILEBASIC.visualdproj
+++ b/SMILEBASIC/SMILEBASIC.visualdproj
@@ -53,7 +53,7 @@
   <cccmd>$(CC) -c</cccmd>
   <ccTransOpt>1</ccTransOpt>
   <program>$(DMDInstallDir)windows\bin\dmd.exe</program>
-  <imppath />
+  <imppath>$(DMDInstallDir)src</imppath>
   <fileImppath />
   <outdir>$(ConfigurationName)</outdir>
   <objdir>$(OutDir)</objdir>
@@ -89,8 +89,8 @@
   <cv2pdbOptions />
   <objfiles />
   <linkswitches />
-  <libfiles />
-  <libpaths />
+  <libfiles>DerelictSDL2.lib;DerelictUtil.lib</libfiles>
+  <libpaths>$(DMDInstallDir)windows\lib\</libpaths>
   <deffile />
   <resfile />
   <exefile>$(OutDir)\$(ProjectName).exe</exefile>
@@ -210,6 +210,7 @@
   <File path="main.d" />
   <File path="node.d" />
   <File path="parser.d" />
+  <File path="petitcomputer.d" />
   <File path="token.d" />
   <File path="type.d" />
   <File path="VM.d" />
diff --git a/SMILEBASIC/compiler.d b/SMILEBASIC/compiler.d
index 5a577a5..b23773e 100644
--- a/SMILEBASIC/compiler.d
+++ b/SMILEBASIC/compiler.d
@@ -154,31 +154,31 @@ class Compiler
     void genCodePushVar(wstring name, Scope sc)
     {
         auto global = hasGlobalVarIndex(name);
-        if(global)
-        {
-            code ~= new PushG(global);
-            return;
-        }
         if(sc.func)
         {
             code ~= new PushL(sc.func.getLocalVarIndex(name, this));
             return;
         }
+        if(global)
+        {
+            code ~= new PushG(global);
+            return;
+        }
         code ~= new PushG(getGlobalVarIndex(name));
     }
     void genCodePopVar(wstring name, Scope sc)
     {
         auto global = hasGlobalVarIndex(name);
-        if(global)
-        {
-            code ~= new PopG(global);
-            return;
-        }
         if(sc.func)
         {
             code ~= new PopL(sc.func.getLocalVarIndex(name, this));
             return;
         }
+        if(global)
+        {
+            code ~= new PopG(global);
+            return;
+        }
         code ~= new PopG(getGlobalVarIndex(name));
     }
     void genCodeOP(TokenType op)
diff --git a/SMILEBASIC/main.d b/SMILEBASIC/main.d
index 4b90b2b..8e230eb 100644
--- a/SMILEBASIC/main.d
+++ b/SMILEBASIC/main.d
@@ -15,7 +15,10 @@ int main(string[] argv)
     
     auto parser = new Parser(
 //"@A\nA=1+2+3+4\nPRINT 1+1,2+3;10-5,A:A=A*2 PRINT A
-"IF 1 THEN PRINT 2
+"
+TEST2 6,7,8 OUT K,L,M
+?K,L,M
+IF 1 THEN PRINT 2
 IF 0 THEN PRINT 4 ELSE PRINT 5
 IF 0 THEN
  PRINT 111
@@ -67,6 +70,8 @@ NEXT
 TEST \"HELLO\",\",\",\"WORLD\"
 TEST2 6,7,8 OUT K,L,M
 ?K,L,M
+FACT 10 OUT F
+?F
 END
 @A
 ?\"SUBROUTINE TEST\"
@@ -87,12 +92,17 @@ DEF FACT(N)
 END
 DEF TEST A,B,C
  ?\"TEST\",A,B,C
+ RETURN
 END
+?\"CHECK\"
 DEF TEST2 A,B,C OUT D,E,F
- ?\"TEST\",A,B,C
+ ?\"TEST2\",A,B,C
+ F=C
+ F=C
  D=A
  E=B
- F=C
+ ?F
+ RETURN
 END
 ");
     version(none) auto parser = new Parser(readText("FIZZBUZZ.TXT").to!wstring);
diff --git a/SMILEBASIC/petitcomputer.d b/SMILEBASIC/petitcomputer.d
new file mode 100644
index 0000000..dcdbfef
--- /dev/null
+++ b/SMILEBASIC/petitcomputer.d
@@ -0,0 +1,9 @@
+module otya.smilebasic.petitcomputer;
+import derelict.sdl2.sdl;
+class PetitComputer
+{
+    this()
+    {
+        DerelictSDL2.load();
+    }
+}
\ No newline at end of file
diff --git a/SMILEBASIC/type.d b/SMILEBASIC/type.d
index a120aa5..380c9bc 100644
--- a/SMILEBASIC/type.d
+++ b/SMILEBASIC/type.d
@@ -90,6 +90,21 @@ struct Value
     {
         return this.type == ValueType.Integer ? this.integerValue : (this.type == ValueType.Double ? this.doubleValue : 0);
     }
+    string toString()
+    {
+        import std.conv;
+        switch(this.type)
+        {
+            case ValueType.Void:
+                return "void";
+            case ValueType.Integer:
+                return this.integerValue.to!string;
+            case ValueType.String:
+                return this.stringValue.to!string;
+            default:
+                return "default";
+        }
+    }
 }
 class Array(T)
 {