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77 lines
2.3 KiB
Python
77 lines
2.3 KiB
Python
"""65(c)02-based test suite for BCD implementation correctness.
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See source code in bcd/*.c65 for more details.
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"""
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import sys
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import unittest
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import py65.devices.mpu6502
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import py65.devices.mpu65c02
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from py65.tests.devices import functional_tests
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def run_bcd_test_case(mpu_class, filename, trace=False):
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executor = functional_tests.FunctionalTestExecutor(
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mpu_class, filename, load_addr=0x200)
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# $1000: JSR $0200
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executor.write_memory(0x1000, [0x20, 0x00, 0x02])
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# Set up BRK vector pointing to $2000 so we can trap PC
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executor.write_memory(0xfffe, [0x00, 0x20])
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if trace:
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tracer = executor.always_trace_predicate
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else:
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tracer = executor.never_trace_predicate
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executor.execute(
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0x1000,
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# If we are looping at the same PC, or we return
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# from the JSR, or we hit the BRK vector, then we are done.
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executor.address_completion_predicate({0x1003, 0x2000}),
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tracer
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)
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mpu = executor.mpu
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if mpu.memory[0x0b] != 0: # Tests did not complete successfully
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# Display internal test state; read the .c65 source to understand
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# what these mean about the particular test case that failed.
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assert False, (
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"N1={:02x} N2={:02x} HA={:02x} HNVZC={:08b} DA={:02x} "
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"DNVZC={:08b} AR={:02x} NF={:08b} VF={:08b} ZF={:08b} "
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"CF={:08b}".format(
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mpu.memory[0x00], mpu.memory[0x01], mpu.memory[0x02],
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mpu.memory[0x03], mpu.memory[0x04], mpu.memory[0x05],
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mpu.memory[0x06], mpu.memory[0x07], mpu.memory[0x08],
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mpu.memory[0x09], mpu.memory[0x0a]
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))
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class BCDFunctionalTests(unittest.TestCase):
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@staticmethod
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def test6502DecimalTest():
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functional_tests.trace_on_assertion(
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run_bcd_test_case,
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py65.devices.mpu6502.MPU,
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"devices/bcd/6502_decimal_test.bin"
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)
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@staticmethod
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def test65c02DecimalTest():
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functional_tests.trace_on_assertion(
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run_bcd_test_case,
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py65.devices.mpu65c02.MPU,
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"devices/bcd/65C02_decimal_test.bin"
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)
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def test_suite():
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return unittest.findTestCases(sys.modules[__name__])
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if __name__ == '__main__':
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unittest.main(defaultTest='test_suite')
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