Apple-2-Tools
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applepy
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consistent whitespace

This commit is contained in:
James Tauber 2011-08-07 06:29:15 -04:00
parent 772cdad470
commit 4177ae0b25
1 changed files with 25 additions and 27 deletions
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52
applepy.py
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@ -123,9 +123,9 @@ class Disassemble:
def __init__(self, cpu, memory):
self.cpu = cpu
self.memory = memory
self.setup_ops()
def setup_ops(self):
self.ops = [None] * 0x100
self.ops[0x00] = ("BRK", )
@ -279,57 +279,55 @@ class Disassemble:
self.ops[0xF9] = ("SBC", self.absolute_y_mode)
self.ops[0xFD] = ("SBC", self.absolute_x_mode)
self.ops[0xFE] = ("INC", self.absolute_x_mode)
def absolute_mode(self, pc):
a = self.memory.read_word(pc+1)
a = self.memory.read_word(pc + 1)
return "$%04X [%04X] = %02X" % (a, a, self.memory.read_word(a))
def absolute_x_mode(self, pc):
a = self.memory.read_word(pc+1)
a = self.memory.read_word(pc + 1)
e = a + self.cpu.x_index
return "$%04X,X [%04X] = %02X" % (a, e, self.memory.read_byte(e))
def absolute_y_mode(self, pc):
a = self.memory.read_word(pc+1)
a = self.memory.read_word(pc + 1)
e = a + self.cpu.y_index
return "$%04X,Y [%04X] = %02X" % (a, e, self.memory.read_byte(e))
def immediate_mode(self, pc):
return "#$%02X" % (self.memory.read_byte(pc+1))
return "#$%02X" % (self.memory.read_byte(pc + 1))
def indirect_mode(self, pc):
a = self.memory.read_word(pc+1)
a = self.memory.read_word(pc + 1)
return "($%04X) [%04X] = %02X" % (a, a, self.memory.read_word(a))
def indirect_x_mode(self, pc):
z = self.memory.read_byte(pc+1)
z = self.memory.read_byte(pc + 1)
a = self.memory.read_word((z + self.cpu.x_index) % 0x100)
return "($%02X,X) [%04X] = %02X" % (z, a, self.memory.read_byte(a))
def indirect_y_mode(self, pc):
z = self.memory.read_byte(pc+1)
z = self.memory.read_byte(pc + 1)
a = self.memory.read_word(z) + self.cpu.y_index
return "($%02X),Y [%04X] = %02X" % (z, a, self.memory.read_byte(a))
def relative_mode(self, pc):
return "$%04X" % (pc + signed(self.memory.read_byte(pc+1) + 2))
return "$%04X" % (pc + signed(self.memory.read_byte(pc + 1) + 2))
def zero_page_mode(self, pc):
a = self.memory.read_byte(pc+1)
a = self.memory.read_byte(pc + 1)
return "$%02X [%04X] = %02X" % (a, a, self.memory.read_byte(a))
def zero_page_x_mode(self, pc):
z = self.memory.read_byte(pc+1)
z = self.memory.read_byte(pc + 1)
a = (z + self.cpu.x_index) % 0x100
return "$%02X,X [%04X] = %02X" % (z, a, self.memory.read_byte(a))
def zero_page_y_mode(self, pc):
z = self.memory.read_byte(pc+1)
z = self.memory.read_byte(pc + 1)
a = (z + self.cpu.y_index) % 0x100
return "$%02X,Y [%04X] = %02X" % (z, a, self.memory.read_byte(a))
def disasm(self, pc):
op = self.memory.read_byte(pc)
info = self.ops[op]