diff --git a/Interpreteur/src/.idea/.gitignore b/Interpreteur/src/.idea/.gitignore
new file mode 100644
index 0000000..73f69e0
--- /dev/null
+++ b/Interpreteur/src/.idea/.gitignore
@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
+# Editor-based HTTP Client requests
+/httpRequests/
diff --git a/Interpreteur/src/.idea/modules.xml b/Interpreteur/src/.idea/modules.xml
new file mode 100644
index 0000000..f669a0e
--- /dev/null
+++ b/Interpreteur/src/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/src.iml" filepath="$PROJECT_DIR$/.idea/src.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/Interpreteur/src/.idea/src.iml b/Interpreteur/src/.idea/src.iml
new file mode 100644
index 0000000..bc2cd87
--- /dev/null
+++ b/Interpreteur/src/.idea/src.iml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="CPP_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/Interpreteur/src/.idea/vcs.xml b/Interpreteur/src/.idea/vcs.xml
new file mode 100644
index 0000000..b2bdec2
--- /dev/null
+++ b/Interpreteur/src/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/../.." vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/Interpreteur/src/instructions.c b/Interpreteur/src/instructions.c
index 48b64f0..27be068 100755
--- a/Interpreteur/src/instructions.c
+++ b/Interpreteur/src/instructions.c
@@ -66,6 +66,9 @@ void asm_add_2(char ins, int arg1, int arg2) {
 void asm_add_1(char ins, int arg1) {
     asm_add_3(ins, arg1, 0, 0);
 }
+void asm_add_0(char ins) {
+    asm_add_3(ins, 0, 0, 0);
+}
 
 void asm_run() {
     int ip = 0;
diff --git a/Interpreteur/src/interpreter.y b/Interpreteur/src/interpreter.y
index 7fefe8b..2def9a5 100755
--- a/Interpreteur/src/interpreter.y
+++ b/Interpreteur/src/interpreter.y
@@ -12,7 +12,7 @@
     int nb;
 }
 
-%token tADD tMUL tSOU tDIV tCOP tAFC tJMP tJMF tINF tSUP tEQU tPRI tAFCA tWR tREAD
+%token tADD tMUL tSOU tDIV tCOP tAFC tJMP tJMF tINF tSUP tEQU tPRI tAFCA tWR tREAD tCOPR tCALL tRET
 
 %token <nb> tNB
 
@@ -53,12 +53,19 @@ Instruction:
         {asm_add_3(EQU, $2, $3, $4);}
     | tPRI tNB
         {asm_add_1(PRI, $2);}
-	| tAFCA tNB tNB
+        | tAFCA tNB tNB
 		{asm_add_2(AFCA, $2, $3);}
 	| tWR tNB tNB
 		{asm_add_2(WR, $2, $3);}
 	| tREAD tNB tNB
 		{asm_add_2(READ, $2, $3);}
+	| tCOPR tNB tNB
+		{asm_add_2(COPR, $2, $3);}
+	| tCALL tNB tNB tNB
+		{asm_add_3(READ, $2, $3, $4);}
+	| tRET
+		{asm_add_0(RET);}
+
     ;