def test_wmp_scenario1(rambank, chip):
"""Test WMP instruction functionality."""
import random
chip_test = Processor()
chip_base = Processor()
value = random.randint(0, 15) # Select a random value
# Perform the instruction under test:
chip_test.PROGRAM_COUNTER = 0
chip_test.CURRENT_RAM_BANK = rambank
chip_test.set_accumulator(value)
chip_test.COMMAND_REGISTER = \
encode_command_register(chip, 0, 0, 'RAM_PORT')
Processor.wmp(chip_test)
# Simulate conditions at end of instruction in base chip
chip_base.PROGRAM_COUNTER = 0
chip_base.set_accumulator(value)
chip_base.COMMAND_REGISTER = \
encode_command_register(chip, 0, 0, 'RAM_PORT')
chip_base.increment_pc(1)
chip_base.CURRENT_RAM_BANK = rambank
chip_base.RAM_PORT[rambank][chip] = chip_base.ACCUMULATOR
# Make assertions that the base chip is now at the same state as
# the test chip which has been operated on by the instruction under test.
assert chip_test.read_program_counter() == chip_base.read_program_counter()
assert chip_test.read_accumulator() == chip_base.read_accumulator()
# Pickling each chip and comparing will show equality or not.
assert pickle.dumps(chip_test) == pickle.dumps(chip_base)
def test_rdr_scenario1(values):
"""Test RDM instruction functionality."""
chip_test = Processor()
chip_base = Processor()
# Perform the instruction under test:
chip_test.set_accumulator(0)
chip_test.COMMAND_REGISTER = \
encode_command_register(values[0], 0, 0, 'ROM_PORT')
chip_test.ROM_PORT[values[0]] = values[1]
Processor.rdr(chip_test)
# Simulate conditions at end of instruction in base chip
chip_base.COMMAND_REGISTER = \
encode_command_register(values[0], 0, 0, 'ROM_PORT')
chip_base.ROM_PORT[values[0]] = values[1]
chip_base.set_accumulator(values[1])
chip_base.increment_pc(1)
# Make assertions that the base chip is now at the same state as
# the test chip which has been operated on by the instruction under test.
assert chip_test.read_program_counter() == chip_base.read_program_counter()
assert chip_test.read_accumulator() == chip_base.read_accumulator()
# Pickling each chip and comparing will show equality or not.
assert pickle.dumps(chip_test) == pickle.dumps(chip_base)
def test_wrm_scenario1(rambank, chip, register, address):
"""Test WRM instruction functionality."""
import random
chip_test = Processor()
chip_base = Processor()
value = random.randint(0, 15) # Select a random value
# Perform the instruction under test:
chip_test.PROGRAM_COUNTER = 0
chip_test.CURRENT_RAM_BANK = rambank
absolute_address = convert_to_absolute_address(chip_test, rambank, chip,
register, address)
chip_test.set_accumulator(value)
chip_test.COMMAND_REGISTER = \
encode_command_register(chip, register, address, 'DATA_RAM_CHAR')
Processor.wrm(chip_test)
# Simulate conditions at end of instruction in base chip
chip_base.PROGRAM_COUNTER = 0
chip_base.RAM[absolute_address] = value
chip_base.set_accumulator(value)
chip_base.COMMAND_REGISTER = \
encode_command_register(chip, register, address, 'DATA_RAM_CHAR')
chip_base.increment_pc(1)
chip_base.CURRENT_RAM_BANK = rambank
# Make assertions that the base chip is now at the same state as
# the test chip which has been operated on by the instruction under test.
assert chip_test.read_program_counter() == chip_base.read_program_counter()
assert chip_test.read_accumulator() == chip_base.read_accumulator()
# Pickling each chip and comparing will show equality or not.
assert pickle.dumps(chip_test) == pickle.dumps(chip_base)
def common_wpm_code_1(desired_chip: Processor, chip: Processor,
rambank: int, register: int, address: int,
reg_pair_first: int,
reg_pair_second: int) -> Tuple[str, str]:
"""Common code applicable to all tests to reduce duplication."""
# Line a
desired_chip.COMMAND_REGISTER = \
encode_command_register(chip, register, address, 'DATA_RAM_CHAR')
address_to_write_to = convert_to_absolute_address(
desired_chip, rambank, chip, register, address)
chunks = c2n(12, 4, address_to_write_to, 'b')
# Lines b - d # Store middle bits in register "reg_pair_first"
desired_chip.STATUS_CHARACTERS[rambank][0][0][1] = \
binary_to_decimal(str(chunks[1]))
desired_chip.REGISTERS[reg_pair_first] = \
desired_chip.STATUS_CHARACTERS[rambank][0][0][1]
# Lines e - g # Store lower bits in register "reg_pair_second"
desired_chip.STATUS_CHARACTERS[rambank][0][0][2] = \
binary_to_decimal(str(chunks[2]))
desired_chip.REGISTERS[reg_pair_second] = \
desired_chip.STATUS_CHARACTERS[rambank][0][0][2]
# Lines h - j # Store higher bits in ROM PORT 15
desired_chip.STATUS_CHARACTERS[rambank][0][0][0] = \
binary_to_decimal(str(chunks[0]))
desired_chip.ROM_PORT[15] = \
desired_chip.STATUS_CHARACTERS[rambank][0][0][0]
return chunks, address_to_write_to
def test_adm_scenario1(values):
"""Test ADM instruction functionality."""
chip_test = Processor()
chip_base = Processor()
rambank = values[0]
chip = values[1]
register = values[2]
address = values[3]
value = values[4]
accumulator = 2
cr = encode_command_register(chip, register, address, 'DATA_RAM_CHAR')
chip_test.CARRY = 0
chip_test.COMMAND_REGISTER = cr
chip_test.CURRENT_RAM_BANK = rambank
absolute_address = convert_to_absolute_address(
chip_test, rambank, chip, register, address)
chip_test.RAM[absolute_address] = value
chip_test.set_accumulator(accumulator)
Processor.adm(chip_test)
# Simulate conditions at end of instruction in base chip
chip_base.CARRY = 0
chip_base.COMMAND_REGISTER = cr
absolute_address = convert_to_absolute_address(
chip_base, rambank, chip, register, address)
chip_base.RAM[absolute_address] = value
chip_base.increment_pc(1)
chip_base.CURRENT_RAM_BANK = rambank
chip_base.set_accumulator(value + accumulator)
# Make assertions that the base chip is now at the same state as
# the test chip which has been operated on by the instruction under test.
assert chip_test.read_program_counter() == chip_base.read_program_counter()
assert chip_test.read_accumulator() == chip_base.read_accumulator()
# Pickling each chip and comparing will show equality or not.
assert pickle.dumps(chip_test) == pickle.dumps(chip_base)
def test_adm_scenario1(rambank, chip, register, address, value,
accumulator, carry):
"""Test ADM instruction functionality."""
chip_test = Processor()
chip_base = Processor()
cr = encode_command_register(chip, register, address, 'DATA_RAM_CHAR')
chip_test.CARRY = carry
chip_test.COMMAND_REGISTER = cr
chip_test.CURRENT_RAM_BANK = rambank
absolute_address = convert_to_absolute_address(
chip_test, rambank, chip, register, address)
chip_test.RAM[absolute_address] = value
chip_test.set_accumulator(accumulator)
Processor.sbm(chip_test)
# Simulate conditions at end of instruction in base chip
chip_base.CARRY = carry
chip_base.COMMAND_REGISTER = cr
absolute_address = convert_to_absolute_address(
chip_base, rambank, chip, register, address)
chip_base.RAM[absolute_address] = value
chip_base.increment_pc(1)
chip_base.CURRENT_RAM_BANK = rambank
chip_base.set_accumulator(accumulator)
value_complement = int(ones_complement(value, 4), 2)
carry_complement = chip_base.read_complement_carry()
chip_base.ACCUMULATOR = (chip_base.ACCUMULATOR + value_complement +
carry_complement)
Processor.check_overflow(chip_base)
# Make assertions that the base chip is now at the same state as
# the test chip which has been operated on by the instruction under test.
assert chip_test.read_program_counter() == chip_base.read_program_counter()
assert chip_test.read_accumulator() == chip_base.read_accumulator()
# Pickling each chip and comparing will show equality or not.
assert pickle.dumps(chip_test) == pickle.dumps(chip_base)
def test_wrn_scenario1(rambank, chip, register, char):
"""Test instruction WRn"""
from random import randint
chip_test = Processor()
chip_base = Processor()
value = randint(0, 15)
address = encode_command_register(chip, register, 0,
'DATA_RAM_STATUS_CHAR')
chip_test.CURRENT_RAM_BANK = rambank
chip_test.COMMAND_REGISTER = address
chip_test.set_accumulator(value)
# Perform the instruction under test:
if char == 0:
Processor.wr0(chip_test)
if char == 1:
Processor.wr1(chip_test)
if char == 2:
Processor.wr2(chip_test)
if char == 3:
Processor.wr3(chip_test)
# Simulate conditions at end of instruction in base chip
chip_base.COMMAND_REGISTER = address
chip_base.CURRENT_RAM_BANK = rambank
chip_base.increment_pc(1)
chip_base.set_accumulator(value)
chip_base.STATUS_CHARACTERS[rambank][chip][register][char] = value
# Make assertions that the base chip is now at the same state as
# the test chip which has been operated on by the instruction under test.
assert chip_test.read_program_counter() == chip_base.read_program_counter()
assert chip_test.read_accumulator() == chip_base.read_accumulator()
# Pickling each chip and comparing will show equality or not.
assert pickle.dumps(chip_test) == pickle.dumps(chip_base)