diff --git a/js/js2/icodegenerator.cpp b/js/js2/icodegenerator.cpp
index d3ddf110ca7..d3680565689 100644
--- a/js/js2/icodegenerator.cpp
+++ b/js/js2/icodegenerator.cpp
@@ -197,6 +197,14 @@ TypedRegister ICodeGenerator::newObject()
     return dest;
 }
 
+TypedRegister ICodeGenerator::newClass(const StringAtom &name)
+{
+    TypedRegister dest(getRegister(), &Any_Type);
+    NewClass *instr = new NewClass(dest, &name);
+    iCode->push_back(instr);
+    return dest;
+}
+
 TypedRegister ICodeGenerator::newFunction(ICodeModule *icm)
 {
     TypedRegister dest(getRegister(), &Function_Type);
@@ -632,8 +640,12 @@ TypedRegister ICodeGenerator::genExpr(ExprNode *p,
         break;
     case ExprNode::New:
         {
-            // FIXME - handle args, etc...
-            ret = newObject();
+            InvokeExprNode *i = static_cast<InvokeExprNode *>(p);
+            if (i->op->getKind() == ExprNode::identifier) {
+                ret = newClass(static_cast<IdentifierExprNode *>(i->op)->name);
+            }                
+            else
+                ret = newObject();  // XXX more
         }
         break;
     case ExprNode::call : 
@@ -934,7 +946,7 @@ TypedRegister ICodeGenerator::genExpr(ExprNode *p,
                 if (b->op1->getKind() == ExprNode::dot) {
                     BinaryExprNode *lb = static_cast<BinaryExprNode *>(b->op1);
                     TypedRegister base = genExpr(lb->op1); 
-                    const StringAtom &name = static_cast<IdentifierExprNode *>(b->op2)->name;
+                    const StringAtom &name = static_cast<IdentifierExprNode *>(lb->op2)->name;
                     uint32 slotIndex;
                     if (isSlotName(base.second, name, slotIndex))
                         setSlot(base, slotIndex, ret);
diff --git a/js/js2/icodegenerator.h b/js/js2/icodegenerator.h
index e2c32da382e..eedcfb37ed9 100644
--- a/js/js2/icodegenerator.h
+++ b/js/js2/icodegenerator.h
@@ -238,6 +238,7 @@ namespace ICG {
         TypedRegister newObject();
         TypedRegister newArray();
         TypedRegister newFunction(ICodeModule *icm);
+        TypedRegister newClass(const StringAtom &name);
         
         TypedRegister loadName(const StringAtom &name);
         void saveName(const StringAtom &name, TypedRegister value);
diff --git a/js/js2/interpreter.cpp b/js/js2/interpreter.cpp
index a4b8cc68717..548a7547af0 100644
--- a/js/js2/interpreter.cpp
+++ b/js/js2/interpreter.cpp
@@ -56,6 +56,7 @@ namespace Interpreter {
 
 using namespace ICG;
 using namespace JSTypes;
+using namespace JSClasses;
     
 // These classes are private to the JS interpreter.
 
@@ -709,6 +710,28 @@ using JSString throughout.
                 }
                 break;
 
+            case GET_SLOT:
+                {
+                    GetSlot* gs = static_cast<GetSlot*>(instruction);
+                    JSValue& value = (*registers)[src1(gs).first];
+                    if (value.isObject()) {
+                        JSInstance* inst = static_cast<JSInstance *>(value.object);
+                        (*registers)[dst(gs).first] = (*inst)[src2(gs)];
+                    }
+                    // XXX runtime error
+                }
+                break;
+            case SET_SLOT:
+                {
+                    SetSlot* ss = static_cast<SetSlot*>(instruction);
+                    JSValue& value = (*registers)[dst(ss).first];
+                    if (value.isObject()) {
+                        JSInstance* inst = static_cast<JSInstance *>(value.object);
+                        (*inst)[src1(ss)] = (*registers)[src2(ss).first];
+                    }
+                }
+                break;
+
             case LOAD_IMMEDIATE:
                 {
                     LoadImmediate* li = static_cast<LoadImmediate*>(instruction);
@@ -822,6 +845,19 @@ using JSString throughout.
                 }
                 break;
 
+            case SLOT_XCR:
+                {
+                    SlotXcr *sx = static_cast<SlotXcr*>(instruction);
+                    JSValue& dest = (*registers)[dst(sx).first];
+                    JSValue& base = (*registers)[src1(sx).first];
+                    JSInstance *inst = static_cast<JSInstance*>(base.object);
+                    JSValue r = (*inst)[src2(sx)].toNumber();
+                    dest = r;
+                    r.f64 += val4(sx);
+                    (*inst)[src2(sx)] = r;
+                }
+                break;
+
             case NAME_XCR:
                 {
                     NameXcr *nx = static_cast<NameXcr*>(instruction);
diff --git a/js/js2/js2.cpp b/js/js2/js2.cpp
index 2eb6ae9b0b0..bdc6753a03c 100644
--- a/js/js2/js2.cpp
+++ b/js/js2/js2.cpp
@@ -22,8 +22,8 @@
 // JS2 shell.
 //
 
-#if 0
-#define DEBUGGER_FOO
+#if 1
+//#define DEBUGGER_FOO
 #define INTERPRET_INPUT
 #else
 #undef DEBUGGER_FOO
diff --git a/js/js2/jsclasses.h b/js/js2/jsclasses.h
index bd0253146cb..2039497944d 100644
--- a/js/js2/jsclasses.h
+++ b/js/js2/jsclasses.h
@@ -104,6 +104,11 @@ namespace JSClasses {
             return mSlots[name];
         }
         
+        JSSlots& getSlots()
+        {
+            return mSlots;
+        }
+        
         bool hasSlot(const String& name)
         {
             return (mSlots.count(name) != 0);
@@ -142,6 +147,18 @@ namespace JSClasses {
         {
             return mSlots[index];
         }
+
+        virtual void printProperties(Formatter& f)
+        {
+            JSObject::printProperties(f);
+            JSClass *thisClass = getClass();
+            JSSlots &slots = thisClass->getSlots();
+            f << "Slots:\n";
+            for (JSSlots::iterator i = slots.begin(), end = slots.end(); i != end; ++i) {
+                f << i->first << " : " <<  mSlots[i->second.mIndex]  << "\n";
+            }
+        }
+
     };
     
 } /* namespace JSClasses */
diff --git a/js/js2/jstypes.cpp b/js/js2/jstypes.cpp
index e8ff789a597..64918d8bcd0 100644
--- a/js/js2/jstypes.cpp
+++ b/js/js2/jstypes.cpp
@@ -32,6 +32,7 @@
  */
 
 #include "jstypes.h"
+#include "jsclasses.h"
 #include "numerics.h"
 #include "icodegenerator.h"
 
@@ -155,13 +156,13 @@ int JSValue::operator==(const JSValue& value) const
     return 0;
 }
 
-Formatter& operator<<(Formatter& f, const JSObject& obj)
+Formatter& operator<<(Formatter& f, JSObject& obj)
 {
     obj.printProperties(f);
     return f;
 }
 
-void JSObject::printProperties(Formatter& f) const
+void JSObject::printProperties(Formatter& f)
 {
     for (JSProperties::const_iterator i = mProperties.begin(); i != mProperties.end(); i++) {
         f << (*i).first << " : " << (*i).second;
@@ -184,6 +185,7 @@ Formatter& operator<<(Formatter& f, const JSValue& value)
         break;
     case JSValue::object_tag:
         {
+
             printFormat(f, "Object @ 0x%08X\n", value.object);
             f << *value.object;
         }
diff --git a/js/js2/jstypes.h b/js/js2/jstypes.h
index a08e4d81860..cae03ef5f28 100644
--- a/js/js2/jstypes.h
+++ b/js/js2/jstypes.h
@@ -253,10 +253,10 @@ namespace JSTypes {
             return mPrototype;
         }
 
-        void printProperties(Formatter& f) const;
+        virtual void printProperties(Formatter& f);
     };
     
-    Formatter& operator<<(Formatter& f, const JSObject& obj);
+    Formatter& operator<<(Formatter& f, JSObject& obj);
 
     /**
      * Private representation of a JavaScript array.
diff --git a/js2/src/icodegenerator.cpp b/js2/src/icodegenerator.cpp
index d3ddf110ca7..d3680565689 100644
--- a/js2/src/icodegenerator.cpp
+++ b/js2/src/icodegenerator.cpp
@@ -197,6 +197,14 @@ TypedRegister ICodeGenerator::newObject()
     return dest;
 }
 
+TypedRegister ICodeGenerator::newClass(const StringAtom &name)
+{
+    TypedRegister dest(getRegister(), &Any_Type);
+    NewClass *instr = new NewClass(dest, &name);
+    iCode->push_back(instr);
+    return dest;
+}
+
 TypedRegister ICodeGenerator::newFunction(ICodeModule *icm)
 {
     TypedRegister dest(getRegister(), &Function_Type);
@@ -632,8 +640,12 @@ TypedRegister ICodeGenerator::genExpr(ExprNode *p,
         break;
     case ExprNode::New:
         {
-            // FIXME - handle args, etc...
-            ret = newObject();
+            InvokeExprNode *i = static_cast<InvokeExprNode *>(p);
+            if (i->op->getKind() == ExprNode::identifier) {
+                ret = newClass(static_cast<IdentifierExprNode *>(i->op)->name);
+            }                
+            else
+                ret = newObject();  // XXX more
         }
         break;
     case ExprNode::call : 
@@ -934,7 +946,7 @@ TypedRegister ICodeGenerator::genExpr(ExprNode *p,
                 if (b->op1->getKind() == ExprNode::dot) {
                     BinaryExprNode *lb = static_cast<BinaryExprNode *>(b->op1);
                     TypedRegister base = genExpr(lb->op1); 
-                    const StringAtom &name = static_cast<IdentifierExprNode *>(b->op2)->name;
+                    const StringAtom &name = static_cast<IdentifierExprNode *>(lb->op2)->name;
                     uint32 slotIndex;
                     if (isSlotName(base.second, name, slotIndex))
                         setSlot(base, slotIndex, ret);
diff --git a/js2/src/icodegenerator.h b/js2/src/icodegenerator.h
index e2c32da382e..eedcfb37ed9 100644
--- a/js2/src/icodegenerator.h
+++ b/js2/src/icodegenerator.h
@@ -238,6 +238,7 @@ namespace ICG {
         TypedRegister newObject();
         TypedRegister newArray();
         TypedRegister newFunction(ICodeModule *icm);
+        TypedRegister newClass(const StringAtom &name);
         
         TypedRegister loadName(const StringAtom &name);
         void saveName(const StringAtom &name, TypedRegister value);
diff --git a/js2/src/interpreter.cpp b/js2/src/interpreter.cpp
index a4b8cc68717..548a7547af0 100644
--- a/js2/src/interpreter.cpp
+++ b/js2/src/interpreter.cpp
@@ -56,6 +56,7 @@ namespace Interpreter {
 
 using namespace ICG;
 using namespace JSTypes;
+using namespace JSClasses;
     
 // These classes are private to the JS interpreter.
 
@@ -709,6 +710,28 @@ using JSString throughout.
                 }
                 break;
 
+            case GET_SLOT:
+                {
+                    GetSlot* gs = static_cast<GetSlot*>(instruction);
+                    JSValue& value = (*registers)[src1(gs).first];
+                    if (value.isObject()) {
+                        JSInstance* inst = static_cast<JSInstance *>(value.object);
+                        (*registers)[dst(gs).first] = (*inst)[src2(gs)];
+                    }
+                    // XXX runtime error
+                }
+                break;
+            case SET_SLOT:
+                {
+                    SetSlot* ss = static_cast<SetSlot*>(instruction);
+                    JSValue& value = (*registers)[dst(ss).first];
+                    if (value.isObject()) {
+                        JSInstance* inst = static_cast<JSInstance *>(value.object);
+                        (*inst)[src1(ss)] = (*registers)[src2(ss).first];
+                    }
+                }
+                break;
+
             case LOAD_IMMEDIATE:
                 {
                     LoadImmediate* li = static_cast<LoadImmediate*>(instruction);
@@ -822,6 +845,19 @@ using JSString throughout.
                 }
                 break;
 
+            case SLOT_XCR:
+                {
+                    SlotXcr *sx = static_cast<SlotXcr*>(instruction);
+                    JSValue& dest = (*registers)[dst(sx).first];
+                    JSValue& base = (*registers)[src1(sx).first];
+                    JSInstance *inst = static_cast<JSInstance*>(base.object);
+                    JSValue r = (*inst)[src2(sx)].toNumber();
+                    dest = r;
+                    r.f64 += val4(sx);
+                    (*inst)[src2(sx)] = r;
+                }
+                break;
+
             case NAME_XCR:
                 {
                     NameXcr *nx = static_cast<NameXcr*>(instruction);
diff --git a/js2/src/jsclasses.h b/js2/src/jsclasses.h
index bd0253146cb..2039497944d 100644
--- a/js2/src/jsclasses.h
+++ b/js2/src/jsclasses.h
@@ -104,6 +104,11 @@ namespace JSClasses {
             return mSlots[name];
         }
         
+        JSSlots& getSlots()
+        {
+            return mSlots;
+        }
+        
         bool hasSlot(const String& name)
         {
             return (mSlots.count(name) != 0);
@@ -142,6 +147,18 @@ namespace JSClasses {
         {
             return mSlots[index];
         }
+
+        virtual void printProperties(Formatter& f)
+        {
+            JSObject::printProperties(f);
+            JSClass *thisClass = getClass();
+            JSSlots &slots = thisClass->getSlots();
+            f << "Slots:\n";
+            for (JSSlots::iterator i = slots.begin(), end = slots.end(); i != end; ++i) {
+                f << i->first << " : " <<  mSlots[i->second.mIndex]  << "\n";
+            }
+        }
+
     };
     
 } /* namespace JSClasses */
diff --git a/js2/src/jstypes.cpp b/js2/src/jstypes.cpp
index e8ff789a597..64918d8bcd0 100644
--- a/js2/src/jstypes.cpp
+++ b/js2/src/jstypes.cpp
@@ -32,6 +32,7 @@
  */
 
 #include "jstypes.h"
+#include "jsclasses.h"
 #include "numerics.h"
 #include "icodegenerator.h"
 
@@ -155,13 +156,13 @@ int JSValue::operator==(const JSValue& value) const
     return 0;
 }
 
-Formatter& operator<<(Formatter& f, const JSObject& obj)
+Formatter& operator<<(Formatter& f, JSObject& obj)
 {
     obj.printProperties(f);
     return f;
 }
 
-void JSObject::printProperties(Formatter& f) const
+void JSObject::printProperties(Formatter& f)
 {
     for (JSProperties::const_iterator i = mProperties.begin(); i != mProperties.end(); i++) {
         f << (*i).first << " : " << (*i).second;
@@ -184,6 +185,7 @@ Formatter& operator<<(Formatter& f, const JSValue& value)
         break;
     case JSValue::object_tag:
         {
+
             printFormat(f, "Object @ 0x%08X\n", value.object);
             f << *value.object;
         }
diff --git a/js2/src/jstypes.h b/js2/src/jstypes.h
index a08e4d81860..cae03ef5f28 100644
--- a/js2/src/jstypes.h
+++ b/js2/src/jstypes.h
@@ -253,10 +253,10 @@ namespace JSTypes {
             return mPrototype;
         }
 
-        void printProperties(Formatter& f) const;
+        virtual void printProperties(Formatter& f);
     };
     
-    Formatter& operator<<(Formatter& f, const JSObject& obj);
+    Formatter& operator<<(Formatter& f, JSObject& obj);
 
     /**
      * Private representation of a JavaScript array.
diff --git a/js2/tests/cpp/js2_shell.cpp b/js2/tests/cpp/js2_shell.cpp
index 2eb6ae9b0b0..bdc6753a03c 100644
--- a/js2/tests/cpp/js2_shell.cpp
+++ b/js2/tests/cpp/js2_shell.cpp
@@ -22,8 +22,8 @@
 // JS2 shell.
 //
 
-#if 0
-#define DEBUGGER_FOO
+#if 1
+//#define DEBUGGER_FOO
 #define INTERPRET_INPUT
 #else
 #undef DEBUGGER_FOO