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from atk16_asm import assemble
from atk16_emu import Machine
from test.utils import pad_bytearray
def run_mul(a: int, b: int) -> int:
filename = "test/e2e/call_stack/run_mul.atk16"
with open(filename, "r") as f:
source = f.read()
source = source.replace("%INPUT_A%", str(a))
source = source.replace("%INPUT_B%", str(b))
obj = assemble(source, filename)
rom_image = pad_bytearray(obj.program)
machine = Machine()
machine.load_rom_image(rom_image)
machine.reset()
machine.run_until_halted()
return machine.rg.value
def test_mul_0():
expected = 0
received = run_mul(0, -100)
assert expected == received
def test_mul_1():
expected = 30
received = run_mul(5, 6)
assert expected == received
def test_mul_2():
a = -100
b = 200
expected = a * b
received = run_mul(a, b)
# interpret received as a 16 bit signed integer, using powers of two in the math
received = received if received < 2**15 else received - 2**16
assert expected == received
def run_fact(n: int) -> int:
filename = "test/e2e/call_stack/run_fact.atk16"
with open(filename, "r") as f:
source = f.read()
source = source.replace("%INPUT%", str(n))
obj = assemble(source, filename)
rom_image = pad_bytearray(obj.program)
machine = Machine()
machine.load_rom_image(rom_image)
machine.reset()
machine.run_until_halted()
return machine.rg.value
def test_fact_0():
expected = 1
received = run_fact(0)
assert expected == received
def test_fact_6():
expected = 720
received = run_fact(6)
assert expected == received
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