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Run tests for page wrapping bugs on NMOS only

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This commit is contained in:
Mike Naberezny 2014-01-22 21:58:02 -08:00
parent d4d644d560
commit 7cf76952a4
1 changed files with 58 additions and 56 deletions
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114
py65/tests/devices/test_mpu6502.py
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@ -2924,17 +2924,6 @@ class Common6502Tests:
self.assertEqual(mpu.ZERO, mpu.p & mpu.ZERO)
self.assertEqual(0, mpu.p & mpu.NEGATIVE)
def test_lda_zp_x_indexed_page_wraps(self):
mpu = self._make_mpu()
mpu.a = 0x00
mpu.x = 0xFF
# $0000 LDA $80,X
self._write(mpu.memory, 0x0000, (0xB5, 0x80))
mpu.memory[0x007F] = 0x42
mpu.step()
self.assertEqual(0x0002, mpu.pc)
self.assertEqual(0x42, mpu.a)
# LDX Absolute
def test_ldx_absolute_loads_x_sets_n_flag(self):
@ -5622,6 +5611,64 @@ class Common6502Tests:
self.assertEqual(0x03, mpu.a)
self.assertEqual(0x0008, mpu.pc)
# Test Helpers
def _write(self, memory, start_address, bytes):
memory[start_address:start_address + len(bytes)] = bytes
def _make_mpu(self, *args, **kargs):
klass = self._get_target_class()
mpu = klass(*args, **kargs)
if 'memory' not in kargs:
mpu.memory = 0x10000 * [0xAA]
return mpu
def _get_target_class(self):
raise NotImplementedError("Target class not specified")
class MPUTests(unittest.TestCase, Common6502Tests):
""" NMOS 6502 tests """
def test_repr(self):
mpu = self._make_mpu()
self.assertTrue("6502" in repr(mpu))
# LDA Zero Page, X-Indexed
def test_lda_zp_x_indexed_page_wraps(self):
mpu = self._make_mpu()
mpu.a = 0x00
mpu.x = 0xFF
# $0000 LDA $80,X
self._write(mpu.memory, 0x0000, (0xB5, 0x80))
mpu.memory[0x007F] = 0x42
mpu.step()
self.assertEqual(0x0002, mpu.pc)
self.assertEqual(0x42, mpu.a)
# BRK
def test_brk_preserves_decimal_flag_when_it_is_set(self):
mpu = self._make_mpu()
mpu.p = mpu.DECIMAL
# $C000 BRK
mpu.memory[0xC000] = 0x00
mpu.pc = 0xC000
mpu.step()
self.assertEqual(mpu.BREAK, mpu.p & mpu.BREAK)
self.assertEqual(mpu.DECIMAL, mpu.p & mpu.DECIMAL)
def test_brk_preserves_decimal_flag_when_it_is_clear(self):
mpu = self._make_mpu()
mpu.p = 0
# $C000 BRK
mpu.memory[0xC000] = 0x00
mpu.pc = 0xC000
mpu.step()
self.assertEqual(mpu.BREAK, mpu.p & mpu.BREAK)
self.assertEqual(0, mpu.p & mpu.DECIMAL)
# Test page wrapping
def test_zeropage_indexed_ind_wrap(self):
@ -5670,51 +5717,6 @@ class Common6502Tests:
mpu.step()
self.assertEqual(0x6c00, mpu.pc)
# Test Helpers
def _write(self, memory, start_address, bytes):
memory[start_address:start_address + len(bytes)] = bytes
def _make_mpu(self, *args, **kargs):
klass = self._get_target_class()
mpu = klass(*args, **kargs)
if 'memory' not in kargs:
mpu.memory = 0x10000 * [0xAA]
return mpu
def _get_target_class(self):
raise NotImplementedError("Target class not specified")
class MPUTests(unittest.TestCase, Common6502Tests):
""" NMOS 6502 tests """
def test_repr(self):
mpu = self._make_mpu()
self.assertTrue("6502" in repr(mpu))
# BRK
def test_brk_preserves_decimal_flag_when_it_is_set(self):
mpu = self._make_mpu()
mpu.p = mpu.DECIMAL
# $C000 BRK
mpu.memory[0xC000] = 0x00
mpu.pc = 0xC000
mpu.step()
self.assertEqual(mpu.BREAK, mpu.p & mpu.BREAK)
self.assertEqual(mpu.DECIMAL, mpu.p & mpu.DECIMAL)
def test_brk_preserves_decimal_flag_when_it_is_clear(self):
mpu = self._make_mpu()
mpu.p = 0
# $C000 BRK
mpu.memory[0xC000] = 0x00
mpu.pc = 0xC000
mpu.step()
self.assertEqual(mpu.BREAK, mpu.p & mpu.BREAK)
self.assertEqual(0, mpu.p & mpu.DECIMAL)
def _get_target_class(self):
return py65.devices.mpu6502.MPU