diff --git a/SMILEBASIC/VM.d b/SMILEBASIC/VM.d
index 4407ffa..052f97f 100644
--- a/SMILEBASIC/VM.d
+++ b/SMILEBASIC/VM.d
@@ -1375,90 +1375,6 @@ class CallBuiltinFunction : Code
         return "callbuiltin " ~ func.name.to!string;
     }
 }
-class IncCodeG : Code
-{
-    int var;
-    this(int var)
-    {
-        this.var = var;
-    }
-    //TODO:文字列INCの挙動
-    override void execute(VM vm)
-    {
-        Value v;
-        Value g = vm.currentSlot.global[var];
-        vm.pop(v);
-        if(!g.isNumber() && g.type != ValueType.String)
-        {
-            throw new TypeMismatch();
-        }
-        if((!g.isNumber() || !v.isNumber()) && g.type != v.type)
-        {
-            throw new TypeMismatch();
-        }
-        if(g.isNumber())
-        {
-            double l = g.castDouble;
-            double r = v.castDouble;
-            if(v.type == ValueType.Double)
-                vm.currentSlot.global[var] = Value(l + r);
-            else
-                vm.currentSlot.global[var] = Value(cast(int)(l + r));
-        }
-        else
-        {
-            wstring l = g.stringValue;
-            wstring r = v.stringValue;
-            vm.currentSlot.global[var] = Value(l ~ r);
-        }
-    }
-    override string toString(VM vm)
-    {
-        return "incglobal " ~ var.to!string;
-    }
-}
-class IncCodeL : Code
-{
-    int var;
-    this(int var)
-    {
-        this.var = var;
-    }
-    //TODO:文字列INCの挙動
-    override void execute(VM vm)
-    {
-        Value v;
-        Value* g = &vm.stack[vm.bp + var];
-        vm.pop(v);
-        if(!g.isNumber() && g.type != ValueType.String)
-        {
-            throw new TypeMismatch();
-        }
-        if((!g.isNumber() || !v.isNumber()) && g.type != v.type)
-        {
-            throw new TypeMismatch();
-        }
-        if(g.isNumber())
-        {
-            double l = g.castDouble;
-            double r = v.castDouble;
-            if(v.type == ValueType.Double)
-                *g = Value(l + r);
-            else
-                *g = Value(cast(int)(l + r));
-        }
-        else
-        {
-            wstring l = g.stringValue;
-            wstring r = v.stringValue;
-            *g = Value(l ~ r);
-        }
-    }
-    override string toString(VM vm)
-    {
-        return "inclocal " ~ var.to!string;
-    }
-}
 class OnBase : Code
 {
     int[] labels;