def __init__(self, ctl, addr_str, operation):
self.ctl = ctl
if addr_str[0].isdigit():
self.addr_str = addr_str
self.addr_base = BASE_10
else:
self.addr_str = addr_str[1:]
self.addr_base = BASE_16
self.address = parse_int(addr_str)
self.operation = operation
self.container = None
self.reference = None
self.mid_block_comment = None
self.comment = None
self.referrers = []
self.asm_label = None
self.nolabel = False
self.org = None
# If this instruction has no address, it was inserted between
# @rsub+begin and @rsub+end; in that case, mark it as a subbed
# instruction already
if self.address is None:
self.sub = operation
else:
self.sub = None
self.keep = False
self.warn = True
self.ignoreua = False
self.ignoremrcua = False
def __init__(self, ctl, addr_str, operation):
self.ctl = ctl
if addr_str[0].isdigit():
self.addr_str = addr_str
self.addr_base = BASE_10
else:
self.addr_str = addr_str[1:]
self.addr_base = BASE_16
self.address = parse_int(addr_str)
self.operation = operation
self.container = None
self.reference = None
self.mid_block_comment = None
self.comment = None
self.referrers = []
self.asm_label = None
self.nolabel = False
self.org = None
# If this instruction has no address, it was inserted between
# @rsub+begin and @rsub+end; in that case, mark it as a subbed
# instruction already
if self.address is None:
self.sub = operation
else:
self.sub = None
self.keep = False
self.warn = True
self.ignoreua = False
self.ignoremrcua = False
def calculate_references(entries, operations):
"""
For each instruction address in a memory map entry, calculate a list of the
entries containing instructions that jump to, call or otherwise refer to
that address.
:param entries: A collection of memory map entries.
:param operations: A tuple of regular expression patterns. The address
operand of any instruction whose operation matches one
of these patterns identifies an entry point that will be
marked with an asterisk in the skool file.
:return: A dictionary of entry point addresses.
"""
instructions = {i.address: (i, e) for e in entries for i in e.instructions}
referrers = defaultdict(list)
for entry in entries:
for instruction in entry.instructions:
operation = instruction.operation
if any(re.match(op, operation.upper()) for op in operations):
addr_str = get_address(operation)
if addr_str:
ref_addr = parse_int(addr_str)
ref_i, ref_e = instructions.get(ref_addr, (None, None))
if ref_i and entry.address not in ref_i.rrefs and ref_i.label != '' and (
entry.ctl != 'u' or entry is ref_e):
referrers[ref_addr].append(entry)
for ref_addr in instruction.refs:
referrer = instructions.get(ref_addr, (None, None))[1]
if referrer and referrer not in referrers[instruction.address]:
referrers[instruction.address].append(referrer)
return referrers
def calculate_references(entries, operations):
"""
For each entry point in each routine, calculate a list of the entries
containing instructions that jump to or call that entry point.
:param entries: A collection of memory map entries.
:param operations: A tuple of operation prefixes. Any instruction whose
operation starts with one of these prefixes is regarded
as a jump or call operation, and therefore identifies an
entry point.
:return: A dictionary of entry point addresses.
"""
instructions = {i.address: (i, e) for e in entries for i in e.instructions}
referrers = defaultdict(list)
for entry in entries:
for instruction in entry.instructions:
operation = instruction.operation
if operation.upper().startswith(operations):
addr_str = get_address(operation)
if addr_str:
ref_addr = parse_int(addr_str)
ref_i, ref_e = instructions.get(ref_addr, (None, None))
if ref_i and entry.address not in ref_i.rrefs and ref_i.label != '' and (entry.ctl != 'u' or entry is ref_e):
referrers[ref_addr].append(entry)
for ref_addr in instruction.refs:
referrer = instructions.get(ref_addr, (None, None))[1]
if referrer and referrer not in referrers[instruction.address]:
referrers[instruction.address].append(referrer)
return referrers
def apply_base(self, addr_str, operation):
address = parse_int(addr_str)
if self.decimal:
if address is not None:
addr_str = '{:05d}'.format(address)
if operation:
operation = self.convert(operation)
elif self.hexadecimal:
if address is not None:
addr_str = self.hex4fmt.format(address)
if operation:
operation = self.convert(operation)
return addr_str, operation
def replace_number(self, text, digits):
num_str = get_address(text)
if num_str is None or num_str.startswith('%'):
return text
num = parse_int(num_str)
if self.decimal:
return text.replace(num_str, str(num))
if self.hexadecimal:
if digits <= 2 and num < 256:
hex_fmt = self.hex2fmt
else:
hex_fmt = self.hex4fmt
return text.replace(num_str, hex_fmt.format(num))
def _calculate_references(self):
for entry in self.entries:
for instruction in entry.instructions:
instruction.referrers = []
for entry in self.entries:
for instruction in entry.instructions:
operation = instruction.operation
if operation.upper().startswith(('DJ', 'JR', 'JP', 'CA', 'RS')):
addr_str = get_address(operation)
if addr_str:
callee = self.instructions.get(parse_int(addr_str))
if callee:
callee.add_referrer(entry)
def _calculate_references(self):
for entry in self.entries:
for instruction in entry.instructions:
instruction.referrers = []
for entry in self.entries:
for instruction in entry.instructions:
operation = instruction.operation
if operation.upper().startswith(('DJ', 'JR', 'JP', 'CA', 'RS')):
addr_str = get_address(operation)
if addr_str:
callee = self.instructions.get(parse_int(addr_str))
if callee:
callee.add_referrer(entry)
def apply_base(self, addr_str, operation):
address = parse_int(addr_str)
if self.decimal:
if address is not None:
addr_str = '{:05d}'.format(address)
if operation:
operation = self.convert(operation)
elif self.hexadecimal:
if address is not None:
addr_str = self.hex4fmt.format(address)
if operation:
operation = self.convert(operation, self.hex2fmt, self.hex4fmt)
return addr_str, operation
def _parse_asm_directive(self, address, directive, removed):
if directive.startswith(
('isub=', 'ssub=', 'rsub=', 'ofix=', 'bfix=', 'rfix=')):
weight = self.weights[directive[:4]]
if weight > (0, 0):
value = directive[5:].rstrip()
if value.startswith('!'):
removed.update(parse_address_range(value[1:]))
else:
self.subs[weight].append(value)
elif directive.startswith('if('):
try:
address = self._parse_asm_directive(
address,
parse_if(self.fields, directive, 2)[1], removed)
except MacroParsingError:
pass
elif directive.startswith('org'):
org = directive.rstrip().partition('=')[2]
if org:
try:
address = get_int_param(org)
except ValueError:
raise SkoolParsingError(
"Invalid org address: {}".format(org))
else:
address = None
elif directive.startswith('keep'):
self.keep = parse_asm_keep_directive(directive)
elif directive.startswith('nowarn'):
self.nowarn = parse_asm_nowarn_directive(directive)
elif self.data is not None and directive.startswith(
('defb=', 'defs=', 'defw=')):
self.data.append(directive)
elif directive.startswith('remote='):
addrs = [
parse_int(a)
for a in directive[7:].partition(':')[-1].split(',')
]
if addrs[0] is not None:
self.remote_entries.append(
Entry(None,
[Instruction(a) for a in addrs if a is not None]))
return address
def convert(self, operation):
if operation.upper().startswith(('DEFB ', 'DEFM ', 'DEFS ', 'DEFW ')):
elements = split_operation(operation, strip=False)
if elements[0].upper() == 'DEFW':
convert_method = self.replace_address
else:
convert_method = self.replace_byte
items = []
for item in elements[1:]:
if item.lstrip().startswith('"'):
items.append(item)
else:
items.append(convert_method(item))
return '{} {}'.format(elements[0], ','.join(items))
elements = split_operation(operation, tidy=True)
op = elements[0]
# Instructions containing '(I[XY]+d)'
index = self.get_index(operation)
if index:
if len(elements) == 3:
return self.replace_index(operation, index, parse_int(elements[2]))
return self.replace_index(operation, index)
if op in ('CALL', 'DJNZ', 'JP', 'JR'):
return self.replace_address(operation)
if op in ('AND', 'OR', 'XOR', 'SUB', 'CP', 'IN', 'OUT', 'ADD', 'ADC', 'SBC', 'RST'):
return self.replace_byte(operation)
if op == 'LD' and len(elements) == 3:
operands = elements[1:]
if operands[0] in ('A', 'B', 'C', 'D', 'E', 'H', 'L', 'IXL', 'IXH', 'IYL', 'IYH', '(HL)') and not operands[1].startswith('('):
# LD r,n; LD (HL),n
return self.replace_byte(operation)
if not set(('A', 'BC', 'DE', 'HL', 'IX', 'IY', 'SP')).isdisjoint(operands):
# LD A,(nn); LD (nn),A; LD rr,nn; LD rr,(nn); LD (nn),rr
return self.replace_address(operation)
return operation
def _calculate_references(self):
# Parse operations for routine/data addresses
for entry in self.memory_map:
for instruction in entry.instructions:
if instruction.keep:
continue
operation = instruction.operation.upper()
if not operation.startswith(('CALL', 'DEFW', 'DJNZ', 'JP', 'JR', 'LD ', 'RST')) or self._is_8_bit_ld_instruction(operation):
continue
addr_str = get_address(operation)
if not addr_str:
continue
address = parse_int(addr_str)
other_instruction = self._instructions.get(address, (None,))[0]
if other_instruction:
other_entry = other_instruction.container
if other_entry.is_ignored():
continue
if other_entry.is_remote() or operation.startswith(('DEFW', 'LD ')) or other_entry.is_routine():
instruction.set_reference(other_entry, address, addr_str)
if operation.startswith(('CALL', 'DJNZ', 'JP', 'JR', 'RST')):
other_instruction.add_referrer(entry)
def _calculate_references(self):
# Parse operations for routine/data addresses
for entry in self.memory_map:
for instruction in entry.instructions:
if instruction.keep:
continue
operation = instruction.operation.upper()
if not operation.startswith(('CALL', 'DEFW', 'DJNZ', 'JP', 'JR', 'LD ', 'RST')) or self._is_8_bit_ld_instruction(operation):
continue
addr_str = get_address(operation)
if not addr_str:
continue
address = parse_int(addr_str)
other_instruction = self._instructions.get(address, (None,))[0]
if other_instruction:
other_entry = other_instruction.container
if other_entry.is_ignored():
continue
if other_entry.is_remote() or operation.startswith(('DEFW', 'LD ')) or other_entry.is_routine():
instruction.set_reference(other_entry, address, addr_str)
if operation.startswith(('CALL', 'DJNZ', 'JP', 'JR', 'RST')):
other_instruction.add_referrer(entry)
def _set_bytes(self, line):
address = parse_int(line[1:6])
if address is not None:
comment_index = find_unquoted(line, ';')
operation = line[7:comment_index].strip()
set_bytes(self.snapshot, address, operation)
def convert_address_operand(self, operand):
if self.decimal:
return str(parse_int(operand))
if self.hexadecimal:
return self.hex4fmt.format(parse_int(operand))
return operand
def _set_bytes(self, line):
address = parse_int(line[1:6])
if address is not None:
comment_index = find_unquoted(line, ';')
operation = line[7:comment_index].strip()
set_bytes(self.snapshot, address, operation)
def _item_value(item, limit=256):
value = parse_int(item, 0)
if 0 <= value < limit:
return value
return 0
def convert_address_operand(self, operand):
if self.decimal:
return str(parse_int(operand))
if self.hexadecimal:
return self.hex4fmt.format(parse_int(operand))
return operand
