diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 65026db..e89a4c9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,6 +19,9 @@ jobs:
     - name: Check out code
       uses: actions/checkout@v4
 
+    - name: Setup cross compilers
+      run: sudo apt-get update && sudo apt-get install -y mingw-w64
+
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5
       with:
@@ -32,6 +35,12 @@ jobs:
     - name: Build ops obj file
       run: bash build_ops_obj.sh
 
+    - name: Build runner
+      run: |
+        mkdir runner/bin
+        gcc runner/runmem2.c -Wall -O2 -o runner/bin/runmem2
+        x86_64-w64-mingw32-gcc runner/runmem2.c -Wall -O2 -o runner/bin/runmem2.exe
+
     #- name: Lint code with flake8
     #  run: flake8
 
@@ -46,4 +55,10 @@ jobs:
       if: strategy.job-index == 0
       with:
         name: object files
-        path: src/copapy/obj/*.o
\ No newline at end of file
+        path: src/copapy/obj/*.o
+
+    - name: Upload compiled runner
+      uses: actions/upload-artifact@v4
+      with:
+        name: runner
+        path: runner/bin/*
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index aa7f98e..c5541f6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,4 @@ __pycache__
 tests/autogenerated_*.py
 *test*.o
 /src/copapy/obj/ops*.o
+test.copapy
\ No newline at end of file
diff --git a/src/copapy/__init__.py b/src/copapy/__init__.py
index bbb8aef..924e678 100644
--- a/src/copapy/__init__.py
+++ b/src/copapy/__init__.py
@@ -369,6 +369,11 @@ def compile_to_instruction_list(end_nodes: Iterable[Node] | Node) -> binw.data_w
         dw.write_int(patch_type)
         dw.write_int(object_addr)
 
-    print('-----')
+    # set entry point
+    dw.write_com(binw.Command.SET_ENTR_POINT)
+    dw.write_int(0)
+
+    # run program command
+    dw.write_com(binw.Command.END_PROG)
 
     return dw
diff --git a/tests/test_compile.py b/tests/test_compile.py
index 8bc8f07..70a3a26 100644
--- a/tests/test_compile.py
+++ b/tests/test_compile.py
@@ -1,6 +1,7 @@
 from copapy import Write, const
 import copapy as rc
 
+
 def test_compile():
     c1 = const(1.11)
     c2 = const(2.22)
@@ -17,6 +18,8 @@ def test_compile():
 
     print('#', il.print())
 
+    il.to_file('test.copapy')
+
 
 if __name__ == "__main__":
     test_compile()
\ No newline at end of file