1 files changed, 18 insertions, 0 deletions
diff --git a/atk16_emu/test/test_store.py b/atk16_emu/test/test_store.py
new file mode 100644
index 0000000..4b1b3df
--- /dev/null
+++ b/atk16_emu/test/test_store.py
@@ -0,0 +1,18 @@
+from atk16_emu import Machine
+from test.utils import make_rom
+
+def test_str():
+  machine = Machine()
+
+  rom_image = make_rom([0b0011_000_000_001_000]) # STR addr=RA data=RB
+  machine.load_rom_image(rom_image)
+  machine.reset()
+
+  machine.mem_write(0x8000, 0x1234)
+  machine.ra.value = 0x8000 # mem address
+  machine.rb.value = 0x2345
+
+  machine.run()
+  machine.step()
+
+  assert machine.mem_read(0x8000) == 0x2345