diff --git a/bootstrap/ISBPL.java b/bootstrap/ISBPL.java
index 2b2fb2e..96e64d3 100644
--- a/bootstrap/ISBPL.java
+++ b/bootstrap/ISBPL.java
@@ -784,8 +784,8 @@ public class ISBPL {
             case "dup":
                 func = (Stack<ISBPLObject> stack) -> {
                     ISBPLObject o = stack.pop();
-                    stack.push(new ISBPLObject(o.type, o.object));
-                    stack.push(new ISBPLObject(o.type, o.object));
+                    stack.push(o);
+                    stack.push(o);
                 };
                 break;
             case "pop":
@@ -964,6 +964,12 @@ public class ISBPL {
                     o.type.vars.remove(o);
                 };
                 break;
+            case "mkinstance":
+                func = (stack) -> {
+                    ISBPLObject type = stack.pop();
+                    stack.push(new ISBPLObject(types.get((int) type.toLong()), new Object()));
+                };
+                break;
             default:
                 func = natives.get(name);
                 break;
@@ -1384,7 +1390,7 @@ public class ISBPL {
                         if (rid == -2) {
                             if (word.equals(debuggerIPC.until)) {
                                 debuggerIPC.run.put(Thread.currentThread().getId(), 0);
-                                while (debuggerIPC.run.get(Thread.currentThread().getId()) != -1) Thread.sleep(1);
+                                while (debuggerIPC.run.get(Thread.currentThread().getId()) == 0) Thread.sleep(1);
                             }
                         }
                         if (rid == -3 && Thread.currentThread().getId() != debuggerIPC.threadID) {
@@ -1485,6 +1491,11 @@ public class ISBPL {
                     word.append('\r');
                     continue;
                 }
+                if(c == 't' && escaping) {
+                    escaping = false;
+                    word.append('\t');
+                    continue;
+                }
                 if(c == '"') {
                     if (escaping) {
                         escaping = false;
@@ -1706,6 +1717,7 @@ class ISBPLObject {
             return false;
         if(this.object == object.object)
             return true;
+        // These can return false because the strict equality check has already been performed.
         if(this.object == null)
             return false;
         if(object.object == null)
diff --git a/std.isbpl b/std.isbpl
index 3aff13d..33ef9b2 100644
--- a/std.isbpl
+++ b/std.isbpl
@@ -40,6 +40,7 @@ native _last_word
 native include
 native putchar
 native mktype
+native mkinstance
 native getos
 native typename
 native gettype
@@ -333,9 +334,8 @@ func anewput {
     def arr size anew =arr
 
     def i 0 =i
-    def tmp
     while { i size lt } {
-        =tmp arr i tmp aput
+        arr swap i swap aput
         i inc
     }
 
@@ -444,6 +444,7 @@ func [ {
     TYPE_ARRAY TYPE_SHADOW settype
 }
 
+"For some reason, this makes objects lose their identity, because of the DUP statement. I do not know, why." #
 func ] {
     "create an array containing everything on stack until the arrayshadow" #
     def array 0 anew =array