6502/py65
1
0
Fork 0
mirror of https://github.com/mnaberez/py65.git synced 2024-06-10 02:29:29 +00:00
Code Issues Projects Releases Wiki Activity

Fixes typo and whitespace

Browse Source
This commit is contained in:
Scot W. Stevenson 2019-01-16 08:05:54 +01:00
parent 4c89c23c87
commit 8cf1862f12
1 changed files with 10 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
py65/tests/devices/test_mpu6502.py
View File

@ -2007,9 +2007,9 @@ class Common6502Tests:
# Compare instructions
# See http://6502.org/tutorials/compare_instructions.html
# See http://6502.org/tutorials/compare_instructions.html
# and http://www.6502.org/tutorials/compare_beyond.html
# Cheat sheet:
# Cheat sheet:
#
# - Comparison is actually subtraction "register - memory"
# - Z contains equality result (1 equal, 0 not equal)
@ -2017,9 +2017,9 @@ class Common6502Tests:
# - N holds MSB of subtraction result (*NOT* of signed subtraction)
# - V is not affected by comparison
# - D has no effect on comparison
# CMP Immediate
def test_cmp_imm_sets_zero_carry_clears_neg_flags_if_equal(self):
"""Comparison: A == m"""
mpu = self._make_mpu()
@ -2054,7 +2054,7 @@ class Common6502Tests:
self.assertEqual(0x0002, mpu.pc)
self.assertEqual(mpu.NEGATIVE, mpu.p & mpu.NEGATIVE) # 0xFF-0x01=0xFE
self.assertEqual(0, mpu.p & mpu.ZERO)
self.assertEqual(mpu.CARRY, mpu.p & mpu.CARRY) # A>m unsigned
self.assertEqual(mpu.CARRY, mpu.p & mpu.CARRY) # A>m unsigned
def test_cmp_imm_clears_zero_carry_takes_neg_if_less_signed_nega(self):
"""Comparison: A < m (signed), A and m both negative"""
@ -2066,7 +2066,7 @@ class Common6502Tests:
self.assertEqual(0x0002, mpu.pc)
self.assertEqual(mpu.NEGATIVE, mpu.p & mpu.NEGATIVE) # 0xFE-0xFF=0xFF
self.assertEqual(0, mpu.p & mpu.ZERO)
self.assertEqual(0, mpu.p & mpu.CARRY) # A<m unsigned
self.assertEqual(0, mpu.p & mpu.CARRY) # A<m unsigned
def test_cmp_imm_clears_zero_sets_carry_takes_neg_if_more_unsigned(self):
"""Comparison: A > m (unsigned)"""
@ -2076,7 +2076,7 @@ class Common6502Tests:
mpu.a = 10
mpu.step()
self.assertEqual(0x0002, mpu.pc)
self.assertEqual(0, mpu.p & mpu.NEGATIVE) # 0x0A-0x01 = 0x0B
self.assertEqual(0, mpu.p & mpu.NEGATIVE) # 0x0A-0x01 = 0x09
self.assertEqual(0, mpu.p & mpu.ZERO)
self.assertEqual(mpu.CARRY, mpu.p & mpu.CARRY) # A>m unsigned
@ -2108,7 +2108,7 @@ class Common6502Tests:
# CPX Immediate
def test_cpx_imm_sets_zero_carry_clears_neg_flags_if_equal(self):
"""Comparison: X == #nn"""
"""Comparison: X == m"""
mpu = self._make_mpu()
# $0000 CPX #$20
self._write(mpu.memory, 0x0000, (0xE0, 0x20))
@ -2119,11 +2119,11 @@ class Common6502Tests:
self.assertEqual(mpu.CARRY, mpu.p & mpu.CARRY)
self.assertEqual(0, mpu.p & mpu.NEGATIVE)
# CPY Immediate
def test_cpy_imm_sets_zero_carry_clears_neg_flags_if_equal(self):
"""Comparison: Y == #nn"""
"""Comparison: Y == m"""
mpu = self._make_mpu()
# $0000 CPY #$30
self._write(mpu.memory, 0x0000, (0xC0, 0x30))