diff --git a/core/chip32/chip32_vm.h b/core/chip32/chip32_vm.h
index 5757143..f52eb78 100644
--- a/core/chip32/chip32_vm.h
+++ b/core/chip32/chip32_vm.h
@@ -85,9 +85,9 @@ 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.: 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
+    OP_CMP_EQ = 28,  ///< compare two registers for equality, result in first e.g.: eq r4, r0, r1 ; similar to: 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 ; similar to: r4 = (r0 > r1 ? 1 : 0
+    OP_CMP_LT = 30,  ///< compare if first register is less than the second, result in first e.g.: lt r4, r0, r1 ; similar to: r4 = (r0 < r1 ? 1 : 0
 
     INSTRUCTION_COUNT
 } chip32_instruction_t;
diff --git a/core/story-manager/src/compiler/assembly_generator_chip32_tac.h b/core/story-manager/src/compiler/assembly_generator_chip32_tac.h
index feacfaf..4153c05 100644
--- a/core/story-manager/src/compiler/assembly_generator_chip32_tac.h
+++ b/core/story-manager/src/compiler/assembly_generator_chip32_tac.h
@@ -462,13 +462,13 @@ private:
     
     void GenerateIfFalse(std::shared_ptr<TACInstruction> instr) {
         LoadOperand(instr->GetOp1(), "r0");
-        m_assembly << "    skipz r0\n";
+        m_assembly << "    skipnz r0\n";
         m_assembly << "    jump " << instr->GetDest()->ToString() << "\n";
     }
     
     void GenerateIfTrue(std::shared_ptr<TACInstruction> instr) {
         LoadOperand(instr->GetOp1(), "r0");
-        m_assembly << "    skipnz r0\n";
+        m_assembly << "    skipz r0\n";
         m_assembly << "    jump " << instr->GetDest()->ToString() << "\n";
     }
     
@@ -601,9 +601,9 @@ private:
                 break;
             
             case Variable::ValueType::INTEGER:
-                // CORRECTION : Déclarer 1 élément, pas la valeur !
-                m_assembly << "$" << v->GetLabel() << " DV32, 1 ; " 
-                        << v->GetVariableName() << "\n";
+                m_assembly << "$" << v->GetLabel() << " DV32, " 
+                            << v->GetValue<int>() << " ; " 
+                            << v->GetVariableName() << "\n";
                 break;
             
             case Variable::ValueType::FLOAT:
diff --git a/core/story-manager/src/compiler/tac.h b/core/story-manager/src/compiler/tac.h
index 1a7d818..e4b3ae0 100644
--- a/core/story-manager/src/compiler/tac.h
+++ b/core/story-manager/src/compiler/tac.h
@@ -696,7 +696,13 @@ private:
     }
 
     void GenerateBranchNode(std::shared_ptr<ASTNode> node) {
+        auto* branchNode = node->GetAs<BranchNode>();
+        if (!branchNode) {
+            throw std::runtime_error("BranchNode cast failed");
+        }
+
         // Évaluer la condition (le BranchNode reçoit la condition sur le port 1)
+        // La condition provient généralement d'un OperatorNode (comparaison)
         auto conditionInput = node->GetDataInput(1);
         if (!conditionInput) {
             throw std::runtime_error("BranchNode missing condition input on port 1");
@@ -707,11 +713,12 @@ private:
             throw std::runtime_error("BranchNode condition evaluation returned null");
         }
 
-        // Créer les labels pour true/false
-        auto trueLabel = NewLabel("true_branch");
-        auto falseLabel = NewLabel("false_branch");
-        auto endLabel = NewLabel("end_branch");
+        // Créer les labels pour true/false/end
+        auto trueLabel = NewLabel("branch_true");
+        auto falseLabel = NewLabel("branch_false");
+        auto endLabel = NewLabel("branch_end");
 
+        // Convention: 0 = false, toute autre valeur = true
         // if (!condition) goto falseLabel
         auto ifInstr = std::make_shared<TACInstruction>(
             TACInstruction::OpCode::IF_FALSE,
@@ -721,11 +728,11 @@ private:
         m_program.AddInstruction(ifInstr);
 
         // True branch label
-        auto labelInstr1 = std::make_shared<TACInstruction>(
+        auto labelTrue = std::make_shared<TACInstruction>(
             TACInstruction::OpCode::LABEL,
             trueLabel
         );
-        m_program.AddInstruction(labelInstr1);
+        m_program.AddInstruction(labelTrue);
         
         // True branch code
         if (node->GetChild(0)) {
@@ -740,11 +747,11 @@ private:
         m_program.AddInstruction(gotoEnd);
 
         // False branch label
-        auto labelInstr2 = std::make_shared<TACInstruction>(
+        auto labelFalse = std::make_shared<TACInstruction>(
             TACInstruction::OpCode::LABEL,
             falseLabel
         );
-        m_program.AddInstruction(labelInstr2);
+        m_program.AddInstruction(labelFalse);
         
         // False branch code
         if (node->GetChild(1)) {
@@ -752,11 +759,11 @@ private:
         }
 
         // End label
-        auto labelInstr3 = std::make_shared<TACInstruction>(
+        auto labelEnd = std::make_shared<TACInstruction>(
             TACInstruction::OpCode::LABEL,
             endLabel
         );
-        m_program.AddInstruction(labelInstr3);
+        m_program.AddInstruction(labelEnd);
     }
 };
 
diff --git a/core/story-manager/src/nodes/branch_node.cpp b/core/story-manager/src/nodes/branch_node.cpp
index 4a3e42a..b77531b 100644
--- a/core/story-manager/src/nodes/branch_node.cpp
+++ b/core/story-manager/src/nodes/branch_node.cpp
@@ -3,16 +3,38 @@
 #include "connection.h"
 #include "sys_lib.h"
 
-
 BranchNode::BranchNode(const std::string &type)
     : BaseNode(type, "Branch Node")
 {
-
+    // Configuration du nœud de branchement
+    SetBehavior(BaseNode::BEHAVIOR_EXECUTION);
+    
+    // Port d'entrée 0: Exécution (EXECUTION_PORT)
+    // Port d'entrée 1: Condition (DATA_PORT)
+    AddInputPort(Port::EXECUTION_PORT, ">", true);
+    AddInputPort(Port::DATA_PORT, "condition");
+    
+    // Port de sortie 0: Branche TRUE (EXECUTION_PORT)
+    // Port de sortie 1: Branche FALSE (EXECUTION_PORT)
+    AddOutputPort(Port::EXECUTION_PORT, "true", true);
+    AddOutputPort(Port::EXECUTION_PORT, "false", true);
+    
+    // Initialiser les données internes
+    nlohmann::json j;
+    j["node_type"] = "branch";
+    j["version"] = 1;
+    SetInternalData(j);
 }
 
-
 void BranchNode::Initialize()
 {
-
-}
-
+    // Charger les données sauvegardées
+    nlohmann::json j = GetInternalData();
+    
+    // Vérifier la version pour compatibilité future
+    if (j.contains("version"))
+    {
+        int version = j["version"].get<int>();
+        // Gérer les migrations de version si nécessaire
+    }
+}
\ No newline at end of file
diff --git a/core/story-manager/src/nodes/branch_node.h b/core/story-manager/src/nodes/branch_node.h
index f43b46c..70fa815 100644
--- a/core/story-manager/src/nodes/branch_node.h
+++ b/core/story-manager/src/nodes/branch_node.h
@@ -6,13 +6,32 @@
 #include "i_script_node.h"
 #include "i_story_project.h"
 
+/**
+ * @brief Nœud de branchement conditionnel simple
+ * 
+ * Ce nœud évalue une condition booléenne et exécute l'une des deux branches.
+ * La condition provient d'un OperatorNode ou de toute autre source de données.
+ * 
+ * Convention booléenne:
+ * - 0 = false
+ * - toute autre valeur = true
+ * 
+ * Ports:
+ * - Entrée 0: Flux d'exécution (EXECUTION_PORT)
+ * - Entrée 1: Condition (DATA_PORT) - résultat d'un OperatorNode par exemple
+ * - Sortie 0: Branche TRUE (EXECUTION_PORT)
+ * - Sortie 1: Branche FALSE (EXECUTION_PORT)
+ * 
+ * Utilisation typique:
+ * [Variable A] ──┐
+ *                ├──> [OperatorNode >] ──> [BranchNode]
+ * [Variable B] ──┘                            ↓      ↓
+ *                                          TRUE    FALSE
+ */
 class BranchNode : public BaseNode
 {
 public:
     BranchNode(const std::string &type);
 
     virtual void Initialize() override;
-
-private:
-};
-
+};
\ No newline at end of file
diff --git a/core/story-manager/src/nodes_factory.h b/core/story-manager/src/nodes_factory.h
index d59e92f..04439ec 100644
--- a/core/story-manager/src/nodes_factory.h
+++ b/core/story-manager/src/nodes_factory.h
@@ -16,7 +16,7 @@
 #include "story_project.h"
 #include "story_primitive.h"
 #include "function_entry_node.h"
-
+#include "branch_node.h"
 
 static const std::string OperatorNodeUuid = "0226fdac-8f7a-47d7-8584-b23aceb712ec";
 static const std::string CallFunctionNodeUuid = "02745f38-9b11-49fe-94b1-b2a6b78249fb";
@@ -24,7 +24,7 @@ static const std::string VariableNodeUuid = "020cca4e-9cdc-47e7-a6a5-53e4c9152ed
 static const std::string PrintNodeUuid = "02ee27bc-ff1d-4f94-b700-eab55052ad1c";
 static const std::string SyscallNodeUuid = "02225cff-4975-400e-8130-41524d8af773";
 static const std::string FunctionEntryNodeUuid = "02fd145a-b3a6-43c2-83ce-6a187e6d4b5b";
-static const std::string DUMMY_a_prendre_Uuid = "027b723d-2327-4646-a17a-79ddc2e016e4";
+static const std::string BranchNodeUuid = "027b723d-2327-4646-a17a-79ddc2e016e4";
 
 typedef std::shared_ptr<BaseNode> (*GenericCreator)(const std::string &type);
 
@@ -44,6 +44,8 @@ public:
         registerNode<PrintNode>(PrintNodeUuid, std::make_shared<StoryPrimitive>("Print"));
         registerNode<SyscallNode>(SyscallNodeUuid, std::make_shared<StoryPrimitive>("System call"));
         registerNode<FunctionEntryNode>(FunctionEntryNodeUuid, std::make_shared<StoryPrimitive>("Function entry"));
+        registerNode<BranchNode>(BranchNodeUuid, std::make_shared<StoryPrimitive>("Branch"));
+        
     }
 
     ~NodesFactory() = default;
diff --git a/core/tests/CMakeLists.txt b/core/tests/CMakeLists.txt
index d3cb6bb..8e5e54a 100644
--- a/core/tests/CMakeLists.txt
+++ b/core/tests/CMakeLists.txt
@@ -30,6 +30,7 @@ add_executable(${PROJECT_NAME}
     test_vm.cpp 
     test_ast.cpp
     test_print_node.cpp
+    test_branch.cpp
 
     ../story-manager/src/nodes/base_node.cpp
     ../story-manager/src/nodes/branch_node.cpp
diff --git a/core/tests/test_branch.cpp b/core/tests/test_branch.cpp
new file mode 100644
index 0000000..78fe5d5
--- /dev/null
+++ b/core/tests/test_branch.cpp
@@ -0,0 +1,672 @@
+// ===================================================================
+// test_branch_node.cpp
+// Tests complets pour BranchNode avec différents types de conditions
+// ===================================================================
+
+#include <catch2/catch_test_macros.hpp>
+#include "branch_node.h"
+#include "variable_node.h"
+#include "function_entry_node.h"
+#include "operator_node.h"
+#include "print_node.h"
+#include "connection.h"
+#include "ast_builder.h"
+#include "assembly_generator_chip32_tac.h"
+#include "chip32_machine.h"
+#include "variable.h"
+
+// ===================================================================
+// TEST 1 : BranchNode avec condition booléenne directe (variable)
+// ===================================================================
+TEST_CASE("Branch with direct boolean variable", "[branch][boolean][variable]") {
+    std::cout << "\n=== Test: Branch with direct boolean variable ===\n";
+    
+    // Variables
+    std::vector<std::shared_ptr<Variable>> variables;
+    
+    // Condition = 1 (true)
+    auto varCondition = std::make_shared<Variable>("condition");
+    varCondition->SetIntegerValue(1);
+    variables.push_back(varCondition);
+    
+    // Nodes
+    auto functionEntry = std::make_shared<FunctionEntryNode>("function-entry");
+    functionEntry->SetWeight(100);
+    
+    auto varNode = std::make_shared<VariableNode>("var-condition");
+    varNode->SetVariable(varCondition);
+    
+    auto branchNode = std::make_shared<BranchNode>("branch-node");
+    branchNode->Initialize();
+    
+    auto printTrue = std::make_shared<PrintNode>("print-true");
+    printTrue->SetText("TRUE branch executed");
+    printTrue->Initialize();
+    
+    auto printFalse = std::make_shared<PrintNode>("print-false");
+    printFalse->SetText("FALSE branch executed");
+    printFalse->Initialize();
+    
+    std::vector<std::shared_ptr<BaseNode>> nodes = {
+        functionEntry,
+        varNode,
+        branchNode,
+        printTrue,
+        printFalse
+    };
+    
+    // Connections
+    std::vector<std::shared_ptr<Connection>> connections;
+    
+    // Execution: Entry → Branch
+    auto execConn = std::make_shared<Connection>();
+    execConn->outNodeId = functionEntry->GetId();
+    execConn->outPortIndex = 0;
+    execConn->inNodeId = branchNode->GetId();
+    execConn->inPortIndex = 0;
+    execConn->type = Connection::EXECUTION_LINK;
+    connections.push_back(execConn);
+    
+    // Data: Variable → Branch.condition (port 1)
+    auto dataConn = std::make_shared<Connection>();
+    dataConn->outNodeId = varNode->GetId();
+    dataConn->outPortIndex = 0;
+    dataConn->inNodeId = branchNode->GetId();
+    dataConn->inPortIndex = 1;
+    dataConn->type = Connection::DATA_LINK;
+    connections.push_back(dataConn);
+    
+    // Execution: Branch.true → PrintTrue
+    auto execTrue = std::make_shared<Connection>();
+    execTrue->outNodeId = branchNode->GetId();
+    execTrue->outPortIndex = 0;
+    execTrue->inNodeId = printTrue->GetId();
+    execTrue->inPortIndex = 0;
+    execTrue->type = Connection::EXECUTION_LINK;
+    connections.push_back(execTrue);
+    
+    // Execution: Branch.false → PrintFalse
+    auto execFalse = std::make_shared<Connection>();
+    execFalse->outNodeId = branchNode->GetId();
+    execFalse->outPortIndex = 1;
+    execFalse->inNodeId = printFalse->GetId();
+    execFalse->inPortIndex = 0;
+    execFalse->type = Connection::EXECUTION_LINK;
+    connections.push_back(execFalse);
+    
+    // Build AST
+    ASTBuilder builder(nodes, connections);
+    auto pathTree = builder.BuildAST();
+    
+    // Generate Assembly using TAC
+    AssemblyGenerator::GeneratorContext context(
+        variables,
+        "2025-01-10 10:00:00",
+        "test-branch-bool-var",
+        true,
+        true,
+        1024
+    );
+    
+    AssemblyGeneratorChip32TAC tacGen(context);
+    tacGen.GenerateCompleteProgram(nodes, pathTree);
+    
+    std::string assembly = tacGen.GetAssembly().str();
+    
+    std::cout << "\n--- Generated Assembly ---\n";
+    std::cout << assembly << std::endl;
+    
+    // Verify
+    REQUIRE(assembly.find("DATA") != std::string::npos);
+    REQUIRE(assembly.find("CODE") != std::string::npos);
+    REQUIRE(assembly.find("branch_true") != std::string::npos);
+    REQUIRE(assembly.find("branch_false") != std::string::npos);
+    
+    // Execute
+    std::cout << "\n--- Execution Output ---\n";
+    std::cout << "Expected: TRUE branch executed (condition = 1)\n";
+    std::cout << "Actual:   ";
+    
+    Chip32::Machine machine;
+    machine.QuickExecute(assembly);
+    
+    std::cout << "\n✓ Test passed\n";
+}
+
+// ===================================================================
+// TEST 2 : BranchNode avec OperatorNode (comparaison)
+// ===================================================================
+TEST_CASE("Branch with OperatorNode comparison", "[branch][operator][comparison]") {
+    std::cout << "\n=== Test: Branch with OperatorNode (A > B) ===\n";
+    
+    // Variables
+    std::vector<std::shared_ptr<Variable>> variables;
+    
+    auto varA = std::make_shared<Variable>("A");
+    varA->SetIntegerValue(10);
+    variables.push_back(varA);
+    
+    auto varB = std::make_shared<Variable>("B");
+    varB->SetIntegerValue(5);
+    variables.push_back(varB);
+    
+    // Nodes
+    auto functionEntry = std::make_shared<FunctionEntryNode>("function-entry");
+    functionEntry->SetWeight(100);
+    
+    auto varNodeA = std::make_shared<VariableNode>("var-A");
+    varNodeA->SetVariable(varA);
+    
+    auto varNodeB = std::make_shared<VariableNode>("var-B");
+    varNodeB->SetVariable(varB);
+    
+    auto operatorNode = std::make_shared<OperatorNode>("operator-gt");
+    operatorNode->SetOperationType(OperatorNode::OperationType::GREATER_THAN);
+    operatorNode->Initialize();
+    
+    auto branchNode = std::make_shared<BranchNode>("branch-node");
+    branchNode->Initialize();
+    
+    auto printTrue = std::make_shared<PrintNode>("print-true");
+    printTrue->SetText("A is greater than B");
+    printTrue->Initialize();
+    
+    auto printFalse = std::make_shared<PrintNode>("print-false");
+    printFalse->SetText("A is NOT greater than B");
+    printFalse->Initialize();
+    
+    std::vector<std::shared_ptr<BaseNode>> nodes = {
+        functionEntry,
+        varNodeA,
+        varNodeB,
+        operatorNode,
+        branchNode,
+        printTrue,
+        printFalse
+    };
+    
+    // Connections
+    std::vector<std::shared_ptr<Connection>> connections;
+    
+    // Execution: Entry → Branch
+    auto execConn = std::make_shared<Connection>();
+    execConn->outNodeId = functionEntry->GetId();
+    execConn->outPortIndex = 0;
+    execConn->inNodeId = branchNode->GetId();
+    execConn->inPortIndex = 0;
+    execConn->type = Connection::EXECUTION_LINK;
+    connections.push_back(execConn);
+    
+    // Data: A → Operator.in1
+    auto dataConn1 = std::make_shared<Connection>();
+    dataConn1->outNodeId = varNodeA->GetId();
+    dataConn1->outPortIndex = 0;
+    dataConn1->inNodeId = operatorNode->GetId();
+    dataConn1->inPortIndex = 0;
+    dataConn1->type = Connection::DATA_LINK;
+    connections.push_back(dataConn1);
+    
+    // Data: B → Operator.in2
+    auto dataConn2 = std::make_shared<Connection>();
+    dataConn2->outNodeId = varNodeB->GetId();
+    dataConn2->outPortIndex = 0;
+    dataConn2->inNodeId = operatorNode->GetId();
+    dataConn2->inPortIndex = 1;
+    dataConn2->type = Connection::DATA_LINK;
+    connections.push_back(dataConn2);
+    
+    // Data: Operator.out → Branch.condition
+    auto dataConn3 = std::make_shared<Connection>();
+    dataConn3->outNodeId = operatorNode->GetId();
+    dataConn3->outPortIndex = 0;
+    dataConn3->inNodeId = branchNode->GetId();
+    dataConn3->inPortIndex = 1;
+    dataConn3->type = Connection::DATA_LINK;
+    connections.push_back(dataConn3);
+    
+    // Execution: Branch.true → PrintTrue
+    auto execTrue = std::make_shared<Connection>();
+    execTrue->outNodeId = branchNode->GetId();
+    execTrue->outPortIndex = 0;
+    execTrue->inNodeId = printTrue->GetId();
+    execTrue->inPortIndex = 0;
+    execTrue->type = Connection::EXECUTION_LINK;
+    connections.push_back(execTrue);
+    
+    // Execution: Branch.false → PrintFalse
+    auto execFalse = std::make_shared<Connection>();
+    execFalse->outNodeId = branchNode->GetId();
+    execFalse->outPortIndex = 1;
+    execFalse->inNodeId = printFalse->GetId();
+    execFalse->inPortIndex = 0;
+    execFalse->type = Connection::EXECUTION_LINK;
+    connections.push_back(execFalse);
+    
+    // Build and generate
+    ASTBuilder builder(nodes, connections);
+    auto pathTree = builder.BuildAST();
+    
+    AssemblyGenerator::GeneratorContext context(
+        variables, "2025-01-10", "test-branch-operator", true, true, 1024
+    );
+    
+    AssemblyGeneratorChip32TAC tacGen(context);
+    tacGen.GenerateCompleteProgram(nodes, pathTree);
+    
+    std::string assembly = tacGen.GetAssembly().str();
+    
+    std::cout << "\n--- Generated Assembly ---\n";
+    std::cout << assembly << std::endl;
+    
+    // Verify TAC structure
+    REQUIRE(assembly.find("gt") != std::string::npos);  // Greater Than opcode
+    REQUIRE(assembly.find("branch_true") != std::string::npos);
+    REQUIRE(assembly.find("branch_false") != std::string::npos);
+    
+    // Execute
+    std::cout << "\n--- Execution Output ---\n";
+    std::cout << "Expected: A is greater than B (10 > 5)\n";
+    std::cout << "Actual:   ";
+    
+    Chip32::Machine machine;
+    machine.QuickExecute(assembly);
+    
+    std::cout << "\n✓ Test passed\n";
+}
+
+// ===================================================================
+// TEST 3 : Tester différentes valeurs (0 = false, autres = true)
+// ===================================================================
+TEST_CASE("Branch with various condition values", "[branch][values][convention]") {
+    std::cout << "\n=== Test: Branch with various condition values ===\n";
+    
+    struct TestCase {
+        int conditionValue;
+        bool expectedTrue;
+        std::string description;
+    };
+    
+    std::vector<TestCase> testCases = {
+        {0, false, "0 should be FALSE"},
+        {1, true, "1 should be TRUE"},
+        {42, true, "42 should be TRUE"},
+        {-5, true, "-5 should be TRUE"},
+        {100, true, "100 should be TRUE"}
+    };
+    
+    for (const auto& test : testCases) {
+        std::cout << "\n--- Testing: " << test.description << " ---\n";
+        
+        // Variables
+        std::vector<std::shared_ptr<Variable>> variables;
+        
+        auto varCondition = std::make_shared<Variable>("condition");
+        varCondition->SetIntegerValue(test.conditionValue);
+        variables.push_back(varCondition);
+        
+        // Nodes
+        auto functionEntry = std::make_shared<FunctionEntryNode>("function-entry");
+        functionEntry->SetWeight(100);
+        
+        auto varNode = std::make_shared<VariableNode>("var-condition");
+        varNode->SetVariable(varCondition);
+        
+        auto branchNode = std::make_shared<BranchNode>("branch-node");
+        branchNode->Initialize();
+        
+        auto printTrue = std::make_shared<PrintNode>("print-true");
+        printTrue->SetText("TRUE");
+        printTrue->Initialize();
+        
+        auto printFalse = std::make_shared<PrintNode>("print-false");
+        printFalse->SetText("FALSE");
+        printFalse->Initialize();
+        
+        std::vector<std::shared_ptr<BaseNode>> nodes = {
+            functionEntry, varNode, branchNode, printTrue, printFalse
+        };
+        
+        // Connections (même pattern que TEST 1)
+        std::vector<std::shared_ptr<Connection>> connections;
+        
+        auto execConn = std::make_shared<Connection>();
+        execConn->outNodeId = functionEntry->GetId();
+        execConn->outPortIndex = 0;
+        execConn->inNodeId = branchNode->GetId();
+        execConn->inPortIndex = 0;
+        execConn->type = Connection::EXECUTION_LINK;
+        connections.push_back(execConn);
+        
+        auto dataConn = std::make_shared<Connection>();
+        dataConn->outNodeId = varNode->GetId();
+        dataConn->outPortIndex = 0;
+        dataConn->inNodeId = branchNode->GetId();
+        dataConn->inPortIndex = 1;
+        dataConn->type = Connection::DATA_LINK;
+        connections.push_back(dataConn);
+        
+        auto execTrue = std::make_shared<Connection>();
+        execTrue->outNodeId = branchNode->GetId();
+        execTrue->outPortIndex = 0;
+        execTrue->inNodeId = printTrue->GetId();
+        execTrue->inPortIndex = 0;
+        execTrue->type = Connection::EXECUTION_LINK;
+        connections.push_back(execTrue);
+        
+        auto execFalse = std::make_shared<Connection>();
+        execFalse->outNodeId = branchNode->GetId();
+        execFalse->outPortIndex = 1;
+        execFalse->inNodeId = printFalse->GetId();
+        execFalse->inPortIndex = 0;
+        execFalse->type = Connection::EXECUTION_LINK;
+        connections.push_back(execFalse);
+        
+        // Build and generate
+        ASTBuilder builder(nodes, connections);
+        auto pathTree = builder.BuildAST();
+        
+        AssemblyGenerator::GeneratorContext context(
+            variables, "2025-01-10", "test-branch-values", false, true, 1024
+        );
+        
+        AssemblyGeneratorChip32TAC tacGen(context);
+        tacGen.GenerateCompleteProgram(nodes, pathTree);
+        
+        std::string assembly = tacGen.GetAssembly().str();
+        
+        // Execute
+        Chip32::Machine machine;
+        machine.QuickExecute(assembly);
+        
+        std::string output = machine.printOutput;
+        std::string expected = test.expectedTrue ? "TRUE" : "FALSE";
+        
+        std::cout << "Condition value: " << test.conditionValue << "\n";
+        std::cout << "Expected: " << expected << ", Got: " << output << "\n";
+        
+        REQUIRE(output.find(expected) != std::string::npos);
+    }
+    
+    std::cout << "\n✓ All value tests passed\n";
+}
+
+// ===================================================================
+// TEST 4 : Tester tous les opérateurs de comparaison
+// ===================================================================
+TEST_CASE("Branch with all comparison operators", "[branch][operators][all]") {
+    std::cout << "\n=== Test: All comparison operators ===\n";
+    
+    struct TestCase {
+        OperatorNode::OperationType op;
+        int a, b;
+        bool expectedTrue;
+        std::string description;
+    };
+    
+    std::vector<TestCase> testCases = {
+        {OperatorNode::OperationType::EQUAL, 5, 5, true, "5 == 5"},
+        {OperatorNode::OperationType::EQUAL, 5, 10, false, "5 == 10"},
+        {OperatorNode::OperationType::NOT_EQUAL, 5, 10, true, "5 != 10"},
+        {OperatorNode::OperationType::NOT_EQUAL, 5, 5, false, "5 != 5"},
+        {OperatorNode::OperationType::GREATER_THAN, 10, 5, true, "10 > 5"},
+        {OperatorNode::OperationType::GREATER_THAN, 5, 10, false, "5 > 10"},
+        {OperatorNode::OperationType::LESS_THAN, 5, 10, true, "5 < 10"},
+        {OperatorNode::OperationType::LESS_THAN, 10, 5, false, "10 < 5"},
+        {OperatorNode::OperationType::GREATER_EQUAL, 10, 5, true, "10 >= 5"},
+        {OperatorNode::OperationType::GREATER_EQUAL, 5, 5, true, "5 >= 5"},
+        {OperatorNode::OperationType::GREATER_EQUAL, 5, 10, false, "5 >= 10"},
+        {OperatorNode::OperationType::LESS_EQUAL, 5, 10, true, "5 <= 10"},
+        {OperatorNode::OperationType::LESS_EQUAL, 5, 5, true, "5 <= 5"},
+        {OperatorNode::OperationType::LESS_EQUAL, 10, 5, false, "10 <= 5"}
+    };
+    
+    for (const auto& test : testCases) {
+        std::cout << "\n--- Testing: " << test.description << " ---\n";
+        
+        // Variables
+        std::vector<std::shared_ptr<Variable>> variables;
+        
+        auto varA = std::make_shared<Variable>("A");
+        varA->SetIntegerValue(test.a);
+        variables.push_back(varA);
+        
+        auto varB = std::make_shared<Variable>("B");
+        varB->SetIntegerValue(test.b);
+        variables.push_back(varB);
+        
+        // Nodes (même structure que TEST 2)
+        auto functionEntry = std::make_shared<FunctionEntryNode>("function-entry");
+        functionEntry->SetWeight(100);
+        
+        auto varNodeA = std::make_shared<VariableNode>("var-A");
+        varNodeA->SetVariable(varA);
+        
+        auto varNodeB = std::make_shared<VariableNode>("var-B");
+        varNodeB->SetVariable(varB);
+        
+        auto operatorNode = std::make_shared<OperatorNode>("operator");
+        operatorNode->SetOperationType(test.op);
+        operatorNode->Initialize();
+        
+        auto branchNode = std::make_shared<BranchNode>("branch-node");
+        branchNode->Initialize();
+        
+        auto printTrue = std::make_shared<PrintNode>("print-true");
+        printTrue->SetText("TRUE");
+        printTrue->Initialize();
+        
+        auto printFalse = std::make_shared<PrintNode>("print-false");
+        printFalse->SetText("FALSE");
+        printFalse->Initialize();
+        
+        std::vector<std::shared_ptr<BaseNode>> nodes = {
+            functionEntry, varNodeA, varNodeB, operatorNode, branchNode, printTrue, printFalse
+        };
+        
+        // Connections (pattern complet)
+        std::vector<std::shared_ptr<Connection>> connections;
+        
+        auto execConn = std::make_shared<Connection>();
+        execConn->outNodeId = functionEntry->GetId();
+        execConn->outPortIndex = 0;
+        execConn->inNodeId = branchNode->GetId();
+        execConn->inPortIndex = 0;
+        execConn->type = Connection::EXECUTION_LINK;
+        connections.push_back(execConn);
+        
+        auto dataConn1 = std::make_shared<Connection>();
+        dataConn1->outNodeId = varNodeA->GetId();
+        dataConn1->outPortIndex = 0;
+        dataConn1->inNodeId = operatorNode->GetId();
+        dataConn1->inPortIndex = 0;
+        dataConn1->type = Connection::DATA_LINK;
+        connections.push_back(dataConn1);
+        
+        auto dataConn2 = std::make_shared<Connection>();
+        dataConn2->outNodeId = varNodeB->GetId();
+        dataConn2->outPortIndex = 0;
+        dataConn2->inNodeId = operatorNode->GetId();
+        dataConn2->inPortIndex = 1;
+        dataConn2->type = Connection::DATA_LINK;
+        connections.push_back(dataConn2);
+        
+        auto dataConn3 = std::make_shared<Connection>();
+        dataConn3->outNodeId = operatorNode->GetId();
+        dataConn3->outPortIndex = 0;
+        dataConn3->inNodeId = branchNode->GetId();
+        dataConn3->inPortIndex = 1;
+        dataConn3->type = Connection::DATA_LINK;
+        connections.push_back(dataConn3);
+        
+        auto execTrue = std::make_shared<Connection>();
+        execTrue->outNodeId = branchNode->GetId();
+        execTrue->outPortIndex = 0;
+        execTrue->inNodeId = printTrue->GetId();
+        execTrue->inPortIndex = 0;
+        execTrue->type = Connection::EXECUTION_LINK;
+        connections.push_back(execTrue);
+        
+        auto execFalse = std::make_shared<Connection>();
+        execFalse->outNodeId = branchNode->GetId();
+        execFalse->outPortIndex = 1;
+        execFalse->inNodeId = printFalse->GetId();
+        execFalse->inPortIndex = 0;
+        execFalse->type = Connection::EXECUTION_LINK;
+        connections.push_back(execFalse);
+        
+        // Build and execute
+        ASTBuilder builder(nodes, connections);
+        auto pathTree = builder.BuildAST();
+        
+        AssemblyGenerator::GeneratorContext context(
+            variables, "2025-01-10", "test-branch-op", false, true, 1024
+        );
+        
+        AssemblyGeneratorChip32TAC tacGen(context);
+        tacGen.GenerateCompleteProgram(nodes, pathTree);
+        
+        std::string assembly = tacGen.GetAssembly().str();
+        
+        Chip32::Machine machine;
+        machine.QuickExecute(assembly);
+        
+        std::string output = machine.printOutput;
+        std::string expected = test.expectedTrue ? "TRUE" : "FALSE";
+        
+        std::cout << "Expected: " << expected << ", Got: " << output << "\n";
+        REQUIRE(output.find(expected) != std::string::npos);
+    }
+    
+    std::cout << "\n✓ All operator tests passed\n";
+}
+
+// ===================================================================
+// TEST 5 : BranchNode avec résultat d'opération arithmétique
+// ===================================================================
+TEST_CASE("Branch with arithmetic operation result", "[branch][arithmetic]") {
+    std::cout << "\n=== Test: Branch with arithmetic result (5 - 5 = 0) ===\n";
+    
+    // Variables
+    std::vector<std::shared_ptr<Variable>> variables;
+    
+    auto varA = std::make_shared<Variable>("A");
+    varA->SetIntegerValue(5);
+    variables.push_back(varA);
+    
+    auto varB = std::make_shared<Variable>("B");
+    varB->SetIntegerValue(5);
+    variables.push_back(varB);
+    
+    // Nodes
+    auto functionEntry = std::make_shared<FunctionEntryNode>("function-entry");
+    functionEntry->SetWeight(100);
+    
+    auto varNodeA = std::make_shared<VariableNode>("var-A");
+    varNodeA->SetVariable(varA);
+    
+    auto varNodeB = std::make_shared<VariableNode>("var-B");
+    varNodeB->SetVariable(varB);
+    
+    // Soustraction: 5 - 5 = 0 (false)
+    auto subNode = std::make_shared<OperatorNode>("operator-sub");
+    subNode->SetOperationType(OperatorNode::OperationType::SUBTRACT);
+    subNode->Initialize();
+    
+    auto branchNode = std::make_shared<BranchNode>("branch-node");
+    branchNode->Initialize();
+    
+    auto printTrue = std::make_shared<PrintNode>("print-true");
+    printTrue->SetText("Result is NON-ZERO");
+    printTrue->Initialize();
+    
+    auto printFalse = std::make_shared<PrintNode>("print-false");
+    printFalse->SetText("Result is ZERO");
+    printFalse->Initialize();
+    
+    std::vector<std::shared_ptr<BaseNode>> nodes = {
+        functionEntry, varNodeA, varNodeB, subNode, branchNode, printTrue, printFalse
+    };
+    
+    // Connections
+    std::vector<std::shared_ptr<Connection>> connections;
+    
+    auto execConn = std::make_shared<Connection>();
+    execConn->outNodeId = functionEntry->GetId();
+    execConn->outPortIndex = 0;
+    execConn->inNodeId = branchNode->GetId();
+    execConn->inPortIndex = 0;
+    execConn->type = Connection::EXECUTION_LINK;
+    connections.push_back(execConn);
+    
+    auto dataConn1 = std::make_shared<Connection>();
+    dataConn1->outNodeId = varNodeA->GetId();
+    dataConn1->outPortIndex = 0;
+    dataConn1->inNodeId = subNode->GetId();
+    dataConn1->inPortIndex = 0;
+    dataConn1->type = Connection::DATA_LINK;
+    connections.push_back(dataConn1);
+    
+    auto dataConn2 = std::make_shared<Connection>();
+    dataConn2->outNodeId = varNodeB->GetId();
+    dataConn2->outPortIndex = 0;
+    dataConn2->inNodeId = subNode->GetId();
+    dataConn2->inPortIndex = 1;
+    dataConn2->type = Connection::DATA_LINK;
+    connections.push_back(dataConn2);
+    
+    auto dataConn3 = std::make_shared<Connection>();
+    dataConn3->outNodeId = subNode->GetId();
+    dataConn3->outPortIndex = 0;
+    dataConn3->inNodeId = branchNode->GetId();
+    dataConn3->inPortIndex = 1;
+    dataConn3->type = Connection::DATA_LINK;
+    connections.push_back(dataConn3);
+    
+    auto execTrue = std::make_shared<Connection>();
+    execTrue->outNodeId = branchNode->GetId();
+    execTrue->outPortIndex = 0;
+    execTrue->inNodeId = printTrue->GetId();
+    execTrue->inPortIndex = 0;
+    execTrue->type = Connection::EXECUTION_LINK;
+    connections.push_back(execTrue);
+    
+    auto execFalse = std::make_shared<Connection>();
+    execFalse->outNodeId = branchNode->GetId();
+    execFalse->outPortIndex = 1;
+    execFalse->inNodeId = printFalse->GetId();
+    execFalse->inPortIndex = 0;
+    execFalse->type = Connection::EXECUTION_LINK;
+    connections.push_back(execFalse);
+    
+    // Build and execute
+    ASTBuilder builder(nodes, connections);
+    auto pathTree = builder.BuildAST();
+    
+    AssemblyGenerator::GeneratorContext context(
+        variables, "2025-01-10", "test-branch-arithmetic", true, true, 1024
+    );
+    
+    AssemblyGeneratorChip32TAC tacGen(context);
+    tacGen.GenerateCompleteProgram(nodes, pathTree);
+    
+    std::string assembly = tacGen.GetAssembly().str();
+    
+    std::cout << "\n--- Generated Assembly ---\n";
+    std::cout << assembly << std::endl;
+    
+    // Verify subtraction is present
+    REQUIRE(assembly.find("sub") != std::string::npos);
+    
+    // Execute
+    std::cout << "\n--- Execution Output ---\n";
+    std::cout << "Expected: Result is ZERO (5 - 5 = 0)\n";
+    std::cout << "Actual:   ";
+    
+    Chip32::Machine machine;
+    machine.QuickExecute(assembly);
+    
+    std::string output = machine.printOutput;
+    REQUIRE(output.find("ZERO") != std::string::npos);
+    
+    std::cout << "\n✓ Test passed\n";
+}
\ No newline at end of file
diff --git a/story-editor/CMakeLists.txt b/story-editor/CMakeLists.txt
index aa0bb24..d3b38de 100644
--- a/story-editor/CMakeLists.txt
+++ b/story-editor/CMakeLists.txt
@@ -148,6 +148,7 @@ set(SRCS
     src/node_editor/operator_node_widget.cpp
     src/node_editor/print_node_widget.cpp
     src/node_editor/syscall_node_widget.cpp
+    src/node_editor/branch_node_widget.cpp
     
     src/gui.cpp
     src/media_converter.cpp
diff --git a/story-editor/imgui.ini b/story-editor/imgui.ini
index 22e98a7..8f3681c 100644
--- a/story-editor/imgui.ini
+++ b/story-editor/imgui.ini
@@ -1,6 +1,6 @@
 [Window][WindowOverViewport_11111111]
 Pos=60,26
-Size=1220,836
+Size=1429,832
 Collapsed=0
 
 [Window][Debug##Default]
@@ -9,32 +9,32 @@ Size=400,400
 Collapsed=0
 
 [Window][Library Manager]
-Pos=630,26
-Size=650,518
+Pos=554,26
+Size=935,607
 Collapsed=0
 DockId=0x00000002,0
 
 [Window][Console]
-Pos=60,546
-Size=628,316
+Pos=60,635
+Size=618,223
 Collapsed=0
 DockId=0x00000004,0
 
 [Window][Emulator]
-Pos=630,26
-Size=650,518
+Pos=554,26
+Size=935,607
 Collapsed=0
 DockId=0x00000002,5
 
 [Window][Code viewer]
-Pos=630,26
-Size=650,518
+Pos=554,26
+Size=935,607
 Collapsed=0
 DockId=0x00000002,4
 
 [Window][Resources]
-Pos=630,26
-Size=650,518
+Pos=554,26
+Size=935,607
 Collapsed=0
 DockId=0x00000002,1
 
@@ -50,36 +50,36 @@ Size=150,42
 Collapsed=0
 
 [Window][Variables]
-Pos=690,546
-Size=590,316
+Pos=680,635
+Size=809,223
 Collapsed=0
 DockId=0x00000005,0
 
 [Window][CPU]
-Pos=630,26
-Size=650,518
+Pos=554,26
+Size=935,607
 Collapsed=0
 DockId=0x00000002,2
 
 [Window][RAM view]
-Pos=630,26
-Size=650,518
+Pos=554,26
+Size=935,607
 Collapsed=0
 DockId=0x00000002,3
 
 [Window][Properties]
-Pos=690,546
-Size=590,316
+Pos=680,635
+Size=809,223
 Collapsed=0
 DockId=0x00000005,1
 
 [Window][ToolBar]
 Pos=0,26
-Size=60,836
+Size=60,832
 Collapsed=0
 
 [Window][QuitConfirm]
-Pos=508,383
+Pos=508,312
 Size=264,96
 Collapsed=0
 
@@ -90,13 +90,13 @@ Collapsed=0
 
 [Window][Module editor]
 Pos=60,26
-Size=568,518
+Size=492,607
 Collapsed=0
 DockId=0x00000001,0
 
 [Window][Story editor]
 Pos=60,26
-Size=568,518
+Size=492,607
 Collapsed=0
 DockId=0x00000001,1
 
@@ -106,8 +106,8 @@ Size=687,422
 Collapsed=0
 
 [Window][Error List]
-Pos=60,546
-Size=628,316
+Pos=60,635
+Size=618,223
 Collapsed=0
 DockId=0x00000004,1
 
@@ -155,11 +155,11 @@ Column 2  Weight=1.0000
 Column 3  Width=60
 
 [Docking][Data]
-DockSpace     ID=0x08BD597D Window=0x1BBC0F80 Pos=60,26 Size=1220,836 Split=Y
-  DockNode    ID=0x00000007 Parent=0x08BD597D SizeRef=1220,549 Split=X
-    DockNode  ID=0x00000001 Parent=0x00000007 SizeRef=1144,694 CentralNode=1 Selected=0x93ADCAAB
-    DockNode  ID=0x00000002 Parent=0x00000007 SizeRef=650,694 Selected=0xE5897A33
-  DockNode    ID=0x00000008 Parent=0x08BD597D SizeRef=1220,316 Split=X Selected=0xEA83D666
-    DockNode  ID=0x00000004 Parent=0x00000008 SizeRef=616,192 Selected=0xEA83D666
-    DockNode  ID=0x00000005 Parent=0x00000008 SizeRef=578,192 Selected=0x8C72BEA8
+DockSpace     ID=0x08BD597D Window=0x1BBC0F80 Pos=60,26 Size=1429,832 Split=Y
+  DockNode    ID=0x00000007 Parent=0x08BD597D SizeRef=1220,469 Split=X
+    DockNode  ID=0x00000001 Parent=0x00000007 SizeRef=492,694 CentralNode=1 Selected=0x93ADCAAB
+    DockNode  ID=0x00000002 Parent=0x00000007 SizeRef=935,694 Selected=0x63869CAF
+  DockNode    ID=0x00000008 Parent=0x08BD597D SizeRef=1220,223 Split=X Selected=0xEA83D666
+    DockNode  ID=0x00000004 Parent=0x00000008 SizeRef=621,192 Selected=0xEA83D666
+    DockNode  ID=0x00000005 Parent=0x00000008 SizeRef=813,192 Selected=0x8C72BEA8
 
diff --git a/story-editor/src/main_window.cpp b/story-editor/src/main_window.cpp
index 700901b..3e46c34 100644
--- a/story-editor/src/main_window.cpp
+++ b/story-editor/src/main_window.cpp
@@ -34,7 +34,7 @@
 #include "print_node_widget.h"
 #include "syscall_node_widget.h"
 #include "function_entry_widget.h"
-
+#include "branch_node_widget.h"
 
 MainWindow::MainWindow(ILogger& logger, EventBus& eventBus, AppController& appController)
     : m_logger(logger)
@@ -74,6 +74,7 @@ MainWindow::MainWindow(ILogger& logger, EventBus& eventBus, AppController& appCo
     m_widgetFactory.registerNode<PrintNodeWidget>(PrintNodeUuid);
     m_widgetFactory.registerNode<SyscallNodeWidget>(SyscallNodeUuid);
     m_widgetFactory.registerNode<FunctionEntryWidget>(FunctionEntryNodeUuid);
+    m_widgetFactory.registerNode<BranchNodeWidget>(BranchNodeUuid);
 
     m_eventBus.Subscribe<OpenProjectEvent>([this](const OpenProjectEvent &event) {
         OpenProject(event.GetUuid());
diff --git a/story-editor/src/node_editor/branch_node_widget.cpp b/story-editor/src/node_editor/branch_node_widget.cpp
new file mode 100644
index 0000000..12b9d1f
--- /dev/null
+++ b/story-editor/src/node_editor/branch_node_widget.cpp
@@ -0,0 +1,54 @@
+#include "branch_node_widget.h"
+
+#include <sstream>
+#include "IconsMaterialDesignIcons.h"
+#include "story_project.h"
+
+BranchNodeWidget::BranchNodeWidget(IStoryManager &manager, std::shared_ptr<BaseNode> node)
+    : BaseNodeWidget(manager, node)
+{
+    m_branchNode = std::dynamic_pointer_cast<BranchNode>(node);
+}
+
+void BranchNodeWidget::Initialize()
+{
+    BaseNodeWidget::Initialize();
+}
+
+void BranchNodeWidget::DrawProperties(std::shared_ptr<IStoryProject> story)
+{
+    ImGui::AlignTextToFramePadding();
+    
+    // Informations sur le nœud de branchement
+    ImGui::SeparatorText("Branch Node Properties");
+    
+    ImGui::TextWrapped("This node evaluates a boolean condition and executes "
+                      "one of two paths based on the result.");
+    
+    ImGui::Spacing();
+    ImGui::Separator();
+    ImGui::Spacing();
+}
+
+void BranchNodeWidget::Draw()
+{
+    // Icône et texte du nœud
+    ImGui::PushStyleColor(ImGuiCol_Text, ImVec4(1.0f, 0.8f, 0.2f, 1.0f));
+    ImGui::Text(ICON_MDI_SOURCE_BRANCH " Branch");
+    ImGui::PopStyleColor();
+    
+    ImGui::Spacing();
+    
+    // Affichage de la condition
+    ImGui::TextColored(ImVec4(0.8f, 0.8f, 0.8f, 1.0f), "if (condition)");
+    
+    ImGui::Spacing();
+    
+    // Affichage visuel des branches
+    ImGui::BeginGroup();
+    {
+        ImGui::TextColored(ImVec4(0.3f, 1.0f, 0.3f, 1.0f), ICON_MDI_CHECK " TRUE");
+        ImGui::TextColored(ImVec4(1.0f, 0.3f, 0.3f, 1.0f), ICON_MDI_CLOSE " FALSE");
+    }
+    ImGui::EndGroup();
+}
\ No newline at end of file
diff --git a/story-editor/src/node_editor/branch_node_widget.h b/story-editor/src/node_editor/branch_node_widget.h
new file mode 100644
index 0000000..69d0a5c
--- /dev/null
+++ b/story-editor/src/node_editor/branch_node_widget.h
@@ -0,0 +1,36 @@
+#pragma once
+
+#include <vector>
+#include <map>
+#include <memory>
+
+#include "base_node_widget.h"
+#include "i_story_manager.h"
+#include "i_story_project.h"
+#include "gui.h"
+#include "branch_node.h"
+
+/**
+ * @brief Widget pour le nœud Branch (If/Else)
+ * 
+ * Gère l'affichage et les propriétés d'un nœud de branchement conditionnel simple.
+ * La condition est évaluée selon la convention: 0 = false, toute autre valeur = true
+ * 
+ * Ports:
+ * - Entrée 0: Flux d'exécution
+ * - Entrée 1: Condition booléenne (provient généralement d'un OperatorNode)
+ * - Sortie 0: Branche TRUE (condition != 0)
+ * - Sortie 1: Branche FALSE (condition == 0)
+ */
+class BranchNodeWidget : public BaseNodeWidget
+{
+public:
+    BranchNodeWidget(IStoryManager &manager, std::shared_ptr<BaseNode> node);
+
+    void Draw() override;
+    void DrawProperties(std::shared_ptr<IStoryProject> story) override;
+    void Initialize() override;
+
+private:
+    std::shared_ptr<BranchNode> m_branchNode;
+};
\ No newline at end of file