diff --git a/casm/CMakeLists.txt b/casm/CMakeLists.txt
index 48c399c..d61c00b 100644
--- a/casm/CMakeLists.txt
+++ b/casm/CMakeLists.txt
@@ -7,4 +7,4 @@ enable_language(ASM_NASM)
 set(CMAKE_ASM_NASM_FLAGS "-f elf64")
 set(CMAKE_ASM_NASM_FLAGS_DEBUG "-gdwarf")
 
-add_executable(casm asm.asm c.c)
\ No newline at end of file
+add_executable(casm asm.asm c.c cpp.cpp)
\ No newline at end of file
diff --git a/casm/asm.asm b/casm/asm.asm
index 99cf597..be431d4 100644
--- a/casm/asm.asm
+++ b/casm/asm.asm
@@ -1,5 +1,5 @@
 global main
-extern sum, print, scan
+extern sum, print, scan, test_vector, a
 
 section .text
 main:
@@ -12,7 +12,11 @@ main:
     call sum        ; сумма
     mov rdi, rax    ; результат
     call print      ; напечатать
+    call test_vector
     pop rbx         ; восстановить rbx
+
+    mov dword [rel a], 42  ; записать значение 42 в переменную a
+
     mov rdi, 0
     mov rax, 60
     syscall
\ No newline at end of file
diff --git a/casm/c.c b/casm/c.c
index 02c4a95..f90fb1c 100644
--- a/casm/c.c
+++ b/casm/c.c
@@ -1,6 +1,8 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+int a;
+
 int sum(int a, int b) {
     return a+b;
 }
diff --git a/casm/cpp.cpp b/casm/cpp.cpp
new file mode 100644
index 0000000..eb50a8c
--- /dev/null
+++ b/casm/cpp.cpp
@@ -0,0 +1,11 @@
+#include <vector>
+#include <iostream>
+
+extern "C" void test_vector() {
+    std::vector<int> vec = std::vector<int>();
+    for(auto i = 0; i < 10; i++)
+        vec.push_back(i);
+    for(auto num : vec) 
+        std::cout << num << ", ";
+    std::cout << std::endl;
+}
\ No newline at end of file