diff --git a/core/chip32/chip32_vm.h b/core/chip32/chip32_vm.h
index cc45842..3ced042 100644
--- a/core/chip32/chip32_vm.h
+++ b/core/chip32/chip32_vm.h
@@ -83,9 +83,9 @@ typedef enum
     OP_SKIPNZ = 27, ///<  skip next instruction if not zero, e.g.: skipnz r2
 
     // Comparison
-    OP_CMP_EQ = 28,  ///< compare two registers for equality, result in first e.g.: cmp_eq r4, r0, r1 (r4 = (r0 == r1 ? 1 : 0)
-    OP_CMP_GT = 29,  ///< compare if first register is greater than the second, result in first e.g.: cmp_gt r4, r0, r1
-    OP_CMP_LT = 30,  ///< compare if first register is less than the second, result in first e.g.: cmp_lt r4, r0, r1
+    OP_CMP_EQ = 28,  ///< compare two registers for equality, result in first e.g.: eq r4, r0, r1 (r4 = (r0 == r1 ? 1 : 0)
+    OP_CMP_GT = 29,  ///< compare if first register is greater than the second, result in first e.g.: gt r4, r0, r1
+    OP_CMP_LT = 30,  ///< compare if first register is less than the second, result in first e.g.: lt r4, r0, r1
 
     INSTRUCTION_COUNT
 } chip32_instruction_t;
diff --git a/core/story-manager/lib/variable.h b/core/story-manager/lib/variable.h
index 8bc80eb..6013b70 100644
--- a/core/story-manager/lib/variable.h
+++ b/core/story-manager/lib/variable.h
@@ -17,6 +17,25 @@ public:
         STRING
     };
 
+    enum RandomFlags
+    {
+        CHARSET_ALPHABET_LOWER = 0x1, // "abcdefghijklmnopqrstuvwxyz"
+        CHARSET_ALPHABET_UPPER = 0x2, // "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+        CHARSET_NUMBERS = 0x4, // "0123456789"
+        CHARSET_SIGNS = 0x8, // "!@#$%^&*()_+-=[]{}|;:,.<>?";
+        ALL_CHARSETS = CHARSET_ALPHABET_LOWER | CHARSET_ALPHABET_UPPER |CHARSET_NUMBERS | CHARSET_SIGNS
+    };
+
+    Variable() {
+        m_uuid = Uuid().String();
+        m_label = Variable::GenerateRandomString(10, Variable::CHARSET_ALPHABET_LOWER | Variable::CHARSET_ALPHABET_UPPER );
+    }
+
+    Variable (const std::string &name)
+        : Variable()
+    {
+        m_variableName = name;
+    }
 
     // Setters
 
@@ -93,6 +112,10 @@ public:
         return m_valueType; 
     }
 
+    std::string GetLabel() const { 
+        return m_label; 
+    }
+
     template<typename T>
     T GetValue() const {
         try {
@@ -108,22 +131,51 @@ public:
         return m_uuid; 
     }
 
-    Variable() {
-        m_uuid = Uuid().String();
-    }
-
-    Variable (const std::string &name)
-        : Variable()
+    static std::string GenerateRandomString(size_t length, uint32_t flags) 
     {
-        m_variableName = name;
+        std::string charset = "";
+
+        if (flags & CHARSET_ALPHABET_LOWER)
+        {
+            charset += "abcdefghijklmnopqrstuvwxyz";
+        }
+
+        if (flags & CHARSET_ALPHABET_UPPER)
+        {
+            charset += "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+        }
+
+        if (flags & CHARSET_NUMBERS)
+        {
+            charset += "0123456789";
+        }
+
+        if (flags & CHARSET_SIGNS)
+        {
+            charset += "!@#$%^&*()_+-=[]{}|;:,.<>?";
+        }
+
+        std::random_device rd;
+        std::mt19937 generator(rd());
+        std::uniform_int_distribution<> distribution(0, charset.size() - 1);
+
+        std::string result;
+        result.reserve(length);
+
+        for (size_t i = 0; i < length; ++i) {
+            result += charset[distribution(generator)];
+        }
+
+        return result;
     }
 
 private:
-    std::string m_variableName;
+    std::string m_variableName; // nom humain
     ValueType m_valueType;
     VariableValue m_value;
     bool m_isConstant;
-    std::string m_uuid;
+    std::string m_uuid; // pour identifier le variable dans le JSON du projet
+    std::string m_label; // pour la génération assembleur
     int m_scalePower;    // Nombre de bits pour la partie fractionnaire
 
 };
diff --git a/core/story-manager/src/compiler/assembly_generator.h b/core/story-manager/src/compiler/assembly_generator.h
index 1c9eacc..04387c1 100644
--- a/core/story-manager/src/compiler/assembly_generator.h
+++ b/core/story-manager/src/compiler/assembly_generator.h
@@ -56,30 +56,8 @@ public:
         m_currentSection = Section::NONE;
     }
 
-    std::string GenerateAssembly(std::vector<std::shared_ptr<BaseNode>> &nodes, const std::vector<PathTree>& roots, const std::vector<std::shared_ptr<Variable>> &variables)
-    {
-        m_roots = roots;
-        /*
-        Reset();
-        
-        // Generate header comments
-        GenerateHeader();
-
-        // Generate data section
-        StartSection(Section::DATA);
-        GenerateDataSection(nodes, roots, variables);
-
-        // Generate text section
-        StartSection(Section::TEXT);
-        GenerateTextSection(roots);
-*/
-        return m_assembly.str();
-    }
-
-
     std::string GenerateAssembly(std::vector<std::shared_ptr<BaseNode>> &nodes, const std::vector<std::shared_ptr<ASTNode>>& order, const std::vector<std::shared_ptr<Variable>> &variables)
     {
-     //   m_roots = roots;
         Reset();
         
         // Generate header comments
@@ -109,6 +87,8 @@ protected:
 
     virtual void GenerateExit()  = 0;
 
+    virtual void GenerateVariable(const std::shared_ptr<Variable> v) = 0;
+
 
     std::string AddStringLiteral(const std::string& text)
     {
@@ -131,7 +111,7 @@ protected:
     std::vector<std::string> m_stringLiterals;
     int m_depth{0};
     Section m_currentSection;
-    std::vector<PathTree> m_roots;
+
 
 private:
 
@@ -160,30 +140,18 @@ private:
 
     void GenerateDataSection(const std::vector<std::shared_ptr<BaseNode>> &nodes, const std::vector<std::shared_ptr<Variable>> &variables)
     {
-
         // Generate all constants
         for (const auto& n : nodes) {
             n->Accept(*this);
         }
+
+        // generate all variables in RAM
+        for (auto & v : variables)
+        {
+            GenerateVariable(v);
+        }
   
         m_assembly << "\n\n";
-
-        // Generate all 
-
-/*
-        // Generate string literals
-        for (const auto& literal : m_stringLiterals) {
-            std::string label = "str_" + std::to_string(m_labelCounter++);
-            m_assembly << label << " db '" << literal << "',0\n"
-                      << label << "_len equ $ - " << label << "\n";
-        }
-
-        // Generate variables
-        for (const auto& t : trees) {
-            CollectVariables(t.root);
-        }
-
-        */
     }
 
     void GenerateTextSection(const std::vector<std::shared_ptr<ASTNode>>& orderedNodes) {
@@ -194,28 +162,12 @@ private:
             GenerateNodeCode(node);
         }
 
-        /*
-        
-        // Process execution paths first
-        for (const auto& tree : trees) {
-            if (tree.isExecutionPath) {
-                GenerateNodeCode(tree.root);
-            }
-        }
-
-        // Process data paths
-        for (const auto& tree : trees) {
-            if (!tree.isExecutionPath) {
-                GenerateNodeCode(tree.root, true);
-            }
-        }
-            */
-
         // Program exit
         GenerateExit();
     }
 
-    void CollectVariables(std::shared_ptr<ASTNode> node) {
+    void CollectVariables(std::shared_ptr<ASTNode> node)
+    {
         if (!node) return;
 
         if (node->IsType<VariableNode>()) {
diff --git a/core/story-manager/src/compiler/assembly_generator_chip32.h b/core/story-manager/src/compiler/assembly_generator_chip32.h
index a1ed336..dc13f76 100644
--- a/core/story-manager/src/compiler/assembly_generator_chip32.h
+++ b/core/story-manager/src/compiler/assembly_generator_chip32.h
@@ -21,50 +21,37 @@ public:
         if (m_context.debugOutput) {
             AddComment("Node: " + node->node->GetTypeName() + " (ID: " + node->node->GetId() + ")");
         }
-/*
-        if (isDataPath)
-        {
-            
-            
-            // else if (node->IsType<VariableNode>()) {
-            //     GenerateVariableNode(node);
-            // }
-        }
-        else
-        {
+        // Node label
+        m_assembly << node->node->GetMyEntryLabel() << ":\n";
 
-        */
-            if (node->IsType<OperatorNode>()) {
-                GenerateOperatorNode(node);
-            }
-            else if (node->IsType<FunctionEntryNode>()) {
-                GenerateFunctionEntry(node);
-            }
-            else if (node->IsType<BranchNode>()) {
-                GenerateBranchNode(node);
-            }
-            else if (node->IsType<PrintNode>()) {
-                GeneratePrintNode(node);
-            }
+        if (node->IsType<OperatorNode>()) {
+            GenerateOperatorNode(node);
+        }
+        else if (node->IsType<FunctionEntryNode>()) {
+            GenerateFunctionEntry(node);
+        }
+        else if (node->IsType<BranchNode>()) {
+            GenerateBranchNode(node);
+        }
+        else if (node->IsType<PrintNode>()) {
+            GeneratePrintNode(node);
+        }
+
+        // // If we're processing a data path, traverse data outputs
+        // if (isDataPath) {
+        //     for (const auto& [port, outputs] : node->dataOutputs) {
+        //         for (const auto& target : outputs) {
+        //             GenerateNodeCode(target.node, true);
+        //         }
+        //     }
         // }
 
-        // If we're processing a data path, traverse data outputs
-        if (isDataPath) {
-            for (const auto& [port, outputs] : node->dataOutputs) {
-                for (const auto& target : outputs) {
-                    GenerateNodeCode(target.node, true);
-                }
-            }
-        }
-
     }
 
     virtual void AddComment(const std::string& comment) {
         m_assembly << std::string(m_depth * 4, ' ') << "; " << comment << "\n";
     }
 
-
-
     virtual void GenerateExit()  {
         AddComment("Program exit");
         m_assembly << "    halt\n";
@@ -74,55 +61,22 @@ private:
 
     void GenerateFunctionEntry(std::shared_ptr<ASTNode> node) {
         AddComment("Function Entry");
-        m_depth++;
-        
-        // for (auto& child : node->children) {
-        //     GenerateNodeCode(child);
-        // }
-        
-        m_depth--;
     }
 
     void GenerateBranchNode(std::shared_ptr<ASTNode> node)
     {
-        std::string labelTrue = GenerateUniqueLabel("true");
-        std::string labelFalse = GenerateUniqueLabel("false");
-        std::string labelEnd = GenerateUniqueLabel("end");
-
         AddComment("Branch condition evaluation");
         m_depth++;
 
-        // Generate condition code
-        // We search a path tree that have a last node equivalent to our node
-        // (this is the input of the condition)
-/*
-        auto lastNode = std::find_if(m_roots.begin(), m_roots.end(),
-            [&node](const PathTree& tree) {
-                return tree.lastNode && tree.lastNode->node->GetId() == node->node->GetId();
-            });
-
-        AddComment("Last node: " + lastNode->lastNode->node->GetTypeName() + " (ID: " + lastNode->lastNode->node->GetId() + ")");
-  */      
+        auto trueBranch = node->GetChild(0);
+        auto falseBranch = node->GetChild(1);
 
         // Compare result and jump
-        m_assembly << "    pop eax\n"
-                << "    cmp eax, 0\n"
-                << "    je " << labelFalse << "\n";
+        m_assembly << "    pop r0\n"
+                << "    skipz r0\n"
+                << "    jump " << trueBranch->node->GetMyEntryLabel() << "\n"
+                << "    jump " << falseBranch->node->GetMyEntryLabel() << "\n";
 
-        // True branch
-        m_assembly << labelTrue << ":\n";
-        if (node->GetChildCount() > 0) {
-            GenerateNodeCode(node->GetChild(0));
-        }
-        m_assembly << "    jmp " << labelEnd << "\n";
-
-        // False branch
-        m_assembly << labelFalse << ":\n";
-        if (node->GetChildCount() > 1) {
-            GenerateNodeCode(node->GetChild(1));
-        }
-
-        m_assembly << labelEnd << ":\n";
         m_depth--;
     }
 
@@ -152,96 +106,73 @@ private:
         AddComment("Operator: " + std::to_string(static_cast<int>(opNode->GetOperationType())));
         m_depth++;
 
-        // Generate code for variables
-        for (const auto& [port, inputNode] : node->dataInputs) {
+        // Generate code for variables usage
+        int reg = 0;
+        for (const auto& [port, inputNode] : node->dataInputs)
+        {
+            // Check if the input node is a variable
+            if (inputNode->IsType<VariableNode>())
+            {
+                auto* varNode = inputNode->GetAs<VariableNode>();
+                if (varNode) {
+                    auto var = varNode->GetVariable();
+                    // Generate code to load the variable value
+                    // FIXME: hardcoded 4 bytes, replace by actual real variable size
+                    m_assembly << "    load r" << reg  << ", $" << var->GetLabel() << ", 4" <<  "; Load variable " << var->GetVariableName() << "\n";
+                    m_assembly << "    push r" << reg << "\n";
+                    // Assuming we have a function to load the variable value
+                    // m_assembly << "    load r0, " << varNode->GetVariableName() << "\n";
+                }
+                reg++;
+            }
+
+
           // m_assembly << "    load r0, " << inputNode.node->GetId() << "\n";
         }
-        
-
+         
+ 
         // Generate operator code
         switch (opNode->GetOperationType()) {
             case OperatorNode::OperationType::ADD:
-                m_assembly << "    pop ebx\n"
-                        << "    pop eax\n"
-                        << "    add eax, ebx\n"
-                        << "    push eax\n";
+                m_assembly << "    pop r0\n"
+                        << "    pop r1\n"
+                        << "    add r0, r1\n"
+                        << "    push r0\n";
                 break;
             case OperatorNode::OperationType::SUBTRACT:
-                m_assembly << "    pop ebx\n"
-                        << "    pop eax\n"
-                        << "    sub eax, ebx\n"
-                        << "    push eax\n";
+                m_assembly << "    pop r0\n"
+                        << "    pop r1\n"
+                        << "    sub r0, r1\n"
+                        << "    push r0\n";
                 break;
             case OperatorNode::OperationType::MULTIPLY:
-                m_assembly << "    pop ebx\n"
-                        << "    pop eax\n"
-                        << "    imul eax, ebx\n"
-                        << "    push eax\n";
+                m_assembly << "    pop r0\n"
+                        << "    pop r1\n"
+                        << "    mul r0, r1\n"
+                        << "    push r0\n";
                 break;
             case OperatorNode::OperationType::DIVIDE:
-                m_assembly << "    pop ebx\n"
-                        << "    pop eax\n"
-                        << "    cdq\n"
-                        << "    idiv ebx\n"
-                        << "    push eax\n";
+                m_assembly << "    pop r0\n"
+                        << "    pop r1\n"
+                        << "    div r0, r1\n"
+                        << "    push r0\n";
                 break;
-            // Add other operators...
-
-/*
-
-
-    std::string GenerateAssembly() const override {
-        std::stringstream ss;
-        
-        switch (m_operationType) {
-            case OperationType::ADD:
-                ss << "    pop ebx\n"
-                   << "    pop eax\n"
-                   << "    add eax, ebx\n"
-                   << "    push eax\n";
+            case OperatorNode::OperationType::AND:
+                m_assembly << "    pop r0\n"
+                        << "    pop r1\n"
+                        << "    and r0, r1\n"
+                        << "    push r0\n";
                 break;
-            case OperationType::SUBTRACT:
-                ss << "    pop ebx\n"
-                   << "    pop eax\n"
-                   << "    sub eax, ebx\n"
-                   << "    push eax\n";
+            case OperatorNode::OperationType::GREATER_THAN:
+                m_assembly << "    pop r0\n"
+                        << "    pop r1\n"
+                        << "    gt r0, r0, r1\n"
+                        << "    push r0\n";
                 break;
-            case OperationType::MULTIPLY:
-                ss << "    pop ebx\n"
-                   << "    pop eax\n"
-                   << "    imul eax, ebx\n"
-                   << "    push eax\n";
+            default:
+                // Make voluntary bad assembly
+                m_assembly << "------>>>> OPERATOR NOT IMPLEMENTED: " << opNode->GetOperatorSymbol() << "\n";
                 break;
-            case OperationType::DIVIDE:
-                ss << "    pop ebx\n"
-                   << "    pop eax\n"
-                   << "    cdq\n"         // Sign extend eax into edx
-                   << "    idiv ebx\n"
-                   << "    push eax\n";   // Push quotient
-                break;
-            case OperationType::AND:
-                ss << "    pop ebx\n"
-                   << "    pop eax\n"
-                   << "    and eax, ebx\n"
-                   << "    push eax\n";
-                break;
-            case OperationType::OR:
-                ss << "    pop ebx\n"
-                   << "    pop eax\n"
-                   << "    or eax, ebx\n"
-                   << "    push eax\n";
-                break;
-            // Add other operators...
-        }
-
-        return ss.str();
-    }
-
-
-*/
-
-
-
         }
 
         m_depth--;
@@ -253,23 +184,44 @@ private:
         {
             if (v->GetValueType() == Variable::ValueType::STRING)
             {
-                m_assembly  << "$" << v->GetVariableName() << " DC8, \""  << v->GetValue<std::string>() << "\"\n";
+                m_assembly  << "$" << v->GetLabel() << " DC8, \""  << v->GetValue<std::string>() << "\" ; "  << v->GetVariableName() << "\n";
             }
             else if (v->GetValueType() == Variable::ValueType::INTEGER)
             {
-                m_assembly  << "$" << v->GetVariableName() << " DC32, "  << v->GetValue<int>() << "\n";
+                m_assembly  << "$" << v->GetLabel() << " DC32, "  << v->GetValue<int>() << " ; "  << v->GetVariableName() << "\n";
             }
             else if (v->GetValueType() == Variable::ValueType::FLOAT)
             {
-                m_assembly  << "$" << v->GetVariableName() << " DC32, "  << v->GetValue<float>() << "\n";
+                m_assembly  << "$" << v->GetLabel() << " DC32, "  << v->GetValue<float>() << " ; "  << v->GetVariableName() << "\n";
             }
             else if (v->GetValueType() == Variable::ValueType::BOOL)
             {
-                m_assembly  << "$" << v->GetVariableName() << " DCB, "  << (v->GetValue<bool>() ? "1" : "0") << "\n";
+                m_assembly  << "$" << v->GetLabel() << " DCB, "  << (v->GetValue<bool>() ? "1" : "0") << " ; "  << v->GetVariableName() << "\n";
             }
 
         }
     }
+
+
+    virtual void GenerateVariable(const std::shared_ptr<Variable> v) 
+    {
+        if (v->GetValueType() == Variable::ValueType::STRING)
+        {
+            m_assembly  << "$" << v->GetLabel() << " DV8, \""  << v->GetValue<std::string>() << "\" ; "  << v->GetVariableName() << "\n";
+        }
+        else if (v->GetValueType() == Variable::ValueType::INTEGER)
+        {
+            m_assembly  << "$" << v->GetLabel() << " DV32, "  << v->GetValue<int>() << " ; "  << v->GetVariableName() << "\n";
+        }
+        else if (v->GetValueType() == Variable::ValueType::FLOAT)
+        {
+            m_assembly  << "$" << v->GetLabel() << " DV32, "  << v->GetValue<float>() << " ; "  << v->GetVariableName() << "\n";
+        }
+        else if (v->GetValueType() == Variable::ValueType::BOOL)
+        {
+            m_assembly  << "$" << v->GetLabel() << " DVB, "  << (v->GetValue<bool>() ? "1" : "0") << " ; "  << v->GetVariableName() << "\n";
+        }
+    }
 /*
     void GenerateVariableNode(std::shared_ptr<ASTNode> node) {
         auto* varNode = node->GetAs<VariableNode>();
diff --git a/core/story-manager/src/compiler/ast_builder.h b/core/story-manager/src/compiler/ast_builder.h
index c0209c6..c1cc746 100644
--- a/core/story-manager/src/compiler/ast_builder.h
+++ b/core/story-manager/src/compiler/ast_builder.h
@@ -144,12 +144,6 @@ public:
     }
 };
 
-struct PathTree {
-    std::shared_ptr<ASTNode> root;
-    std::shared_ptr<ASTNode> lastNode;           // Dernier nœud du PathTree
-    std::vector<std::shared_ptr<Connection>> connections;
-    bool isExecutionPath;  // true for main flow, false for input paths
-};
 
 class ASTBuilder {
 public:
@@ -194,7 +188,10 @@ public:
             }
         }
 
-         return topologicalOrder;
+        // Build execution paths
+        BuildExecutionPath(topologicalOrder, nodeMap);
+
+        return topologicalOrder;
 
     }
 
@@ -202,7 +199,32 @@ private:
     const std::vector<std::shared_ptr<BaseNode>>& m_nodes;
     const std::vector<std::shared_ptr<Connection>>& m_connections;
 
+    void BuildExecutionPath(std::vector<std::shared_ptr<ASTNode>>& tree,
+                const std::unordered_map<std::string, std::shared_ptr<ASTNode>>& nodeMap)
+    {
+        std::queue<std::shared_ptr<ASTNode>> queue;
+        queue.push(tree.front());
 
+        while (!queue.empty()) {
+            auto current = queue.front();
+            queue.pop();
+
+            // Find execution connections from this node
+            for (const auto& conn : m_connections)
+            {
+                if (conn->outNodeId == current->node->GetId())
+                {
+                    auto targetNode = nodeMap.find(conn->inNodeId);
+                    if (targetNode != nodeMap.end())
+                    {
+                        auto childNode = targetNode->second;
+                        current->children.push_back(childNode);
+                        queue.push(childNode);
+                    }
+                }
+            }
+        }
+    }
 
     std::vector<std::shared_ptr<ASTNode>> ApplyKahnAlgorithm(const std::unordered_map<std::string, std::shared_ptr<ASTNode>> &nodeMap)
     {
diff --git a/core/story-manager/src/compiler/flow_generator.h b/core/story-manager/src/compiler/flow_generator.h
index 4615382..7620a09 100644
--- a/core/story-manager/src/compiler/flow_generator.h
+++ b/core/story-manager/src/compiler/flow_generator.h
@@ -66,6 +66,9 @@ protected:
 
     }
 
+    virtual void GenerateVariable(const std::shared_ptr<Variable> v) {
+
+    }
 
     virtual void GenerateExit()  {
        
diff --git a/core/story-manager/src/nodes/base_node.cpp b/core/story-manager/src/nodes/base_node.cpp
index 56c6d63..1f42f55 100644
--- a/core/story-manager/src/nodes/base_node.cpp
+++ b/core/story-manager/src/nodes/base_node.cpp
@@ -19,44 +19,6 @@ BaseNode::~BaseNode()
     std::cout << "Deleted base node" << std::endl;
 }
 
-std::string BaseNode::GenerateRandomString(size_t length, uint32_t flags) 
-{
-    std::string charset = "";
-
-    if (flags & CHARSET_ALPHABET_LOWER)
-    {
-        charset += "abcdefghijklmnopqrstuvwxyz";
-    }
-
-    if (flags & CHARSET_ALPHABET_UPPER)
-    {
-        charset += "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
-    }
-
-    if (flags & CHARSET_NUMBERS)
-    {
-        charset += "0123456789";
-    }
-
-    if (flags & CHARSET_SIGNS)
-    {
-        charset += "!@#$%^&*()_+-=[]{}|;:,.<>?";
-    }
-
-    std::random_device rd;
-    std::mt19937 generator(rd());
-    std::uniform_int_distribution<> distribution(0, charset.size() - 1);
-
-    std::string result;
-    result.reserve(length);
-
-    for (size_t i = 0; i < length; ++i) {
-        result += charset[distribution(generator)];
-    }
-
-    return result;
-}
-
 
 std::string BaseNode::GetEntryLabel(const std::string &id)
 {
diff --git a/core/story-manager/src/nodes/base_node.h b/core/story-manager/src/nodes/base_node.h
index 5964a69..46fc718 100644
--- a/core/story-manager/src/nodes/base_node.h
+++ b/core/story-manager/src/nodes/base_node.h
@@ -44,14 +44,6 @@ public:
         float y;
     };
 
-    enum RandomFlags
-    {
-        CHARSET_ALPHABET_LOWER = 0x1, // "abcdefghijklmnopqrstuvwxyz"
-        CHARSET_ALPHABET_UPPER = 0x2, // "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
-        CHARSET_NUMBERS = 0x4, // "0123456789"
-        CHARSET_SIGNS = 0x8, // "!@#$%^&*()_+-=[]{}|;:,.<>?";
-        ALL_CHARSETS = CHARSET_ALPHABET_LOWER | CHARSET_ALPHABET_UPPER |CHARSET_NUMBERS | CHARSET_SIGNS
-    };
 
     struct ConstantValue
     {
@@ -123,8 +115,6 @@ public:
     void SetInternalData(const nlohmann::json &j);
     nlohmann::json GetInternalData() const;
 
-    static std::string GenerateRandomString(size_t length, uint32_t flags = RandomFlags::ALL_CHARSETS);
-
     void ClearPorts() {
         m_inputPorts.clear();
         m_outputPorts.clear();
diff --git a/core/story-manager/src/nodes/branch_node.h b/core/story-manager/src/nodes/branch_node.h
index 4ea1050..a79cef3 100644
--- a/core/story-manager/src/nodes/branch_node.h
+++ b/core/story-manager/src/nodes/branch_node.h
@@ -14,8 +14,6 @@ public:
     virtual void Initialize() override;
     virtual std::string Build(IStoryPage &page, const StoryOptions &options, int nb_out_conns) override;
 
-    virtual std::string GenerateAssembly() const { return ""; }
-
 private:
 };
 
diff --git a/core/story-manager/src/nodes/print_node.cpp b/core/story-manager/src/nodes/print_node.cpp
index 2db8250..4b3b4ba 100644
--- a/core/story-manager/src/nodes/print_node.cpp
+++ b/core/story-manager/src/nodes/print_node.cpp
@@ -2,16 +2,15 @@
 #include "story_project.h"
 #include "connection.h"
 #include "sys_lib.h"
-
+#include "variable.h"
 
 PrintNode::PrintNode(const std::string &type)
     : BaseNode(type, "Print Node")
 {
-    m_label = GenerateRandomString(10, BaseNode::CHARSET_ALPHABET_LOWER | BaseNode::CHARSET_ALPHABET_UPPER );// Should be enough to avoid collision?
-
     // Create empty variable in memory
     auto v = std::make_shared<Variable>(m_label);
     v->SetTextValue("");
+    m_label = v->GetLabel();
     m_variables[m_label] = v;
 }
 
diff --git a/core/story-manager/src/nodes/variable_node.h b/core/story-manager/src/nodes/variable_node.h
index 0b5b16f..92706cd 100644
--- a/core/story-manager/src/nodes/variable_node.h
+++ b/core/story-manager/src/nodes/variable_node.h
@@ -17,20 +17,18 @@ public:
     virtual void Initialize() override;
     virtual std::string Build(IStoryPage &page, const StoryOptions &options, int nb_out_conns) override;
 
-    virtual std::string GenerateAssembly() const { return ""; }
-
     void StoreInternalData();
 
-    void SetVariableUuid(const std::string &uuid) {
-        m_variableUuid = uuid;
+    void SetVariable(const std::shared_ptr<Variable> v) {
+        m_variable = v;
     }
 
-    std::string GetVariableUuid() const {
-        return m_variableUuid;
+    std::shared_ptr<Variable> GetVariable() const {
+        return m_variable;
     }
 
 private:
-    std::string m_variableUuid;
+std::shared_ptr<Variable> m_variable;
 
 };
 
diff --git a/core/story-manager/tests/test_ast.cpp b/core/story-manager/tests/test_ast.cpp
index 490c6ae..77db8be 100644
--- a/core/story-manager/tests/test_ast.cpp
+++ b/core/story-manager/tests/test_ast.cpp
@@ -58,7 +58,7 @@ TEST_CASE( "Check various indentations and typos" ) {
     auto branchNode = std::make_shared<BranchNode>("branch-node");
 
     auto functionEntryNode = std::make_shared<FunctionEntryNode>("function-entry-node");
-
+ 
 
     std::vector<std::shared_ptr<Variable>> variables;
     auto var1 = std::make_shared<Variable>("X");
@@ -84,16 +84,16 @@ TEST_CASE( "Check various indentations and typos" ) {
     variables.push_back(var4);
 
     auto variableNodeX = std::make_shared<VariableNode>("variable-node");
-    variableNodeX->SetVariableUuid(var1->GetUuid());
+    variableNodeX->SetVariable(var1);
 
     auto variableNodeY = std::make_shared<VariableNode>("variable-node");
-    variableNodeY->SetVariableUuid(var2->GetUuid());
+    variableNodeY->SetVariable(var2);
 
     auto variableNodeA = std::make_shared<VariableNode>("variable-node");
-    variableNodeA->SetVariableUuid(var3->GetUuid());
+    variableNodeA->SetVariable(var3);
 
     auto variableNodeB = std::make_shared<VariableNode>("variable-node");
-    variableNodeB->SetVariableUuid(var4->GetUuid());
+    variableNodeB->SetVariable(var4);
 
     auto testNode = std::make_shared<OperatorNode>();
     testNode->SetOperationType(OperatorNode::OperationType::GREATER_THAN);
@@ -227,25 +227,24 @@ TEST_CASE( "Check various indentations and typos" ) {
 
 
     ASTBuilder builder(nodes, connections);
-    auto pathTrees = builder.BuildAST();
+    auto pathTree = builder.BuildAST();
 
     // Generate flow in the console
     VisualFlowGenerator flowGenerator(context);
     FlowVisualizer::PrintHeader("arabine", "2025-04-08 12:03:01");
-    std::string flow = flowGenerator.GenerateAssembly(nodes, pathTrees, variables);
+    std::string flow = flowGenerator.GenerateAssembly(nodes, pathTree, variables);
 
     
     std::cout << "\nGenerated flow:\n" << flow << std::endl;
 
     // Generate assembly
-    std::string assembly = generator.GenerateAssembly(nodes, pathTrees, variables);
+    std::string assembly = generator.GenerateAssembly(nodes, pathTree, variables);
 
     std::cout << "\nGenerated assembly:\n" << assembly << std::endl;
     
-    // Chip32::Machine machine;
+    Chip32::Machine machine;
 
-    // machine.QuickExecute(compiler.GetCode());
+    machine.QuickExecute(assembly);
 
-  //  REQUIRE( parseResult == true );
 
 }