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Removed duplicates.

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Mike Naberezny 2009-04-08 19:20:05 -07:00
parent 9876bdb8fa
commit 97c024ae0d
1 changed files with 0 additions and 60 deletions
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src/py65/tests/devices/test_mpu6502.py
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@ -3744,66 +3744,6 @@ class Common6502Tests:
# SBC Indirect, Indexed (X)
def test_sbc_ind_x_all_zeros_and_no_borrow_is_zero(self):
mpu = self._make_mpu()
mpu.flags &= ~(mpu.DECIMAL)
mpu.flags |= mpu.CARRY # borrow = 0
mpu.a = 0x00
self._write(mpu.memory, 0x0000, (0xE1, 0x10)) #=> SBC ($10,X)
self._write(mpu.memory, 0x0013, (0xED, 0xFE)) #=> Vector to $FEED
mpu.x = 0x03
mpu.memory[0xFEED] = 0x00
mpu.step()
self.assertEquals(0x00, mpu.a)
self.assertEquals(0, mpu.flags & mpu.NEGATIVE)
self.assertEquals(mpu.CARRY, mpu.CARRY)
self.assertEquals(mpu.ZERO, mpu.flags & mpu.ZERO)
def test_sbc_ind_x_downto_zero_no_borrow_sets_z_clears_n(self):
mpu = self._make_mpu()
mpu.flags &= ~(mpu.DECIMAL)
mpu.flags |= mpu.CARRY # borrow = 0
mpu.a = 0x01
self._write(mpu.memory, 0x0000, (0xE1, 0x10)) #=> SBC ($10,X)
self._write(mpu.memory, 0x0013, (0xED, 0xFE)) #=> Vector to $FEED
mpu.x = 0x03
mpu.memory[0xFEED] = 0x01
mpu.step()
self.assertEquals(0x00, mpu.a)
self.assertEquals(0, mpu.flags & mpu.NEGATIVE)
self.assertEquals(mpu.CARRY, mpu.CARRY)
self.assertEquals(mpu.ZERO, mpu.flags & mpu.ZERO)
def test_sbc_ind_x_downto_zero_with_borrow_sets_z_clears_n(self):
mpu = self._make_mpu()
mpu.flags &= ~(mpu.DECIMAL)
mpu.flags &= ~(mpu.CARRY) # borrow = 1
mpu.a = 0x01
self._write(mpu.memory, 0x0000, (0xE1, 0x10)) #=> SBC ($10,X)
self._write(mpu.memory, 0x0013, (0xED, 0xFE)) #=> Vector to $FEED
mpu.x = 0x03
mpu.memory[0xFEED] = 0x00
mpu.step()
self.assertEquals(0x00, mpu.a)
self.assertEquals(0, mpu.flags & mpu.NEGATIVE)
self.assertEquals(mpu.CARRY, mpu.CARRY)
self.assertEquals(mpu.ZERO, mpu.flags & mpu.ZERO)
def test_sbc_ind_x_downto_four_with_borrow_clears_z_n(self):
mpu = self._make_mpu()
mpu.flags &= ~(mpu.DECIMAL)
mpu.flags &= ~(mpu.CARRY) # borrow = 1
mpu.a = 0x07
self._write(mpu.memory, 0x0000, (0xE1, 0x10)) #=> SBC ($10,X)
self._write(mpu.memory, 0x0013, (0xED, 0xFE)) #=> Vector to $FEED
mpu.x = 0x03
mpu.memory[0xFEED] = 0x02
mpu.step()
self.assertEquals(0x04, mpu.a)
self.assertEquals(0, mpu.flags & mpu.NEGATIVE)
self.assertEquals(0, mpu.flags & mpu.ZERO)
self.assertEquals(mpu.CARRY, mpu.CARRY)
def test_sbc_ind_x_all_zeros_and_no_borrow_is_zero(self):
mpu = self._make_mpu()
mpu.flags &= ~(mpu.DECIMAL)