diff --git a/src/c/a5/addsub.asm b/src/c/a5/addsub.asm
index 1c7c36b..2842278 100644
--- a/src/c/a5/addsub.asm
+++ b/src/c/a5/addsub.asm
@@ -8,6 +8,14 @@ addsub:
     mov ebp, esp
 
     mov eax, 0
+    sub esp, 4
+
+    mov [ebp-4], word 1
+
+    mov eax,0
+    add ax, word [foo]
+    add ax, word [ebp+8]
+    add ax, word [ebp-4]
 
     mov esp, ebp
     pop ebp