def binptr_m_symb(self, s):
if ',' in s: return None
items = s.split('(')
offset = items[0]
if offset[0] != '-': return None
reg = self.reg_symb(items[1][:-1])
return None if reg is None else Types.BinOP_MINUS(
(reg, int(offset[1:], 16)))
def binptr_m_symb(self, s):
"""
Parse addressing with register minus offset: -0x10(%rax)
:param s: lexeme
"""
if ',' in s or ':' in s: return None
items = s.split('(')
offset = items[0]
if offset[0] != '-': return None
reg = self.reg_symb(items[1][:-1])
return None if reg is None else Types.BinOP_MINUS((reg, int(offset[1:], 16)))
def binptr_symb(self, sym):
"""
Parse addressing with register and offset: [r1, #0x10]
:param s: lexeme
"""
preind = sym[-1] == '!'
items = sym[1:(-2 if preind else -1)].split(',')
if len(items) == 2 and items[1][0] == '#':
off = int(items[1][1:], 16)
return Types.BinOP_PLUS((self.reg_symb(items[0]), off), preind) if off >= 0 else \
Types.BinOP_MINUS((self.reg_symb(items[0]), -off), preind)
return None
