2 files changed, 43 insertions, 0 deletions
diff --git a/test/e2e/std_mem/run_memset.atk16 b/test/e2e/std_mem/run_memset.atk16
new file mode 100644
index 0000000..07e7666
--- /dev/null
+++ b/test/e2e/std_mem/run_memset.atk16
@@ -0,0 +1,21 @@
+@include %bootstrap
+@include %std_mem
+
+@label mem_offset
+  0x9000
+
+@label main
+  ; set 0x9005 to value 4
+  ldi mem_offset RA
+  ldr RA RA
+  addi RA 5 RA
+  ldi 4 RB
+  str RB RA
+
+  ; set values 0x0000..0x0004 to 3
+  ldi mem_offset RA
+  ldr RA RA
+  ldi 5 RB
+  ldi 3 RC
+  calli memset
+  hlt
diff --git a/test/e2e/std_mem/test_memset.py b/test/e2e/std_mem/test_memset.py
new file mode 100644
index 0000000..0052ffe
--- /dev/null
+++ b/test/e2e/std_mem/test_memset.py
@@ -0,0 +1,22 @@
+from atk16_asm import assemble
+from atk16_emu import Machine
+from test.utils import pad_bytearray
+
+def test_memset():
+  filename = "test/e2e/std_mem/run_memset.atk16"
+  with open(filename, "r") as f:
+    source = f.read()
+
+  obj = assemble(source, filename)
+  rom_image = pad_bytearray(obj.program)
+
+  machine = Machine()
+  machine.load_rom_image(rom_image)
+  machine.reset()
+  machine.run_until_halted()
+  machine.print_state_summary()
+
+  addr = 0x9000 - 0x8000
+  expected_n = 5
+  expected_value = 3
+  assert all(map(lambda x: x == expected_value, machine.ram.memory[addr:addr+expected_n]))