diff options
Diffstat (limited to 'miasm2/ir/translators/z3_ir.py')
| -rw-r--r-- | miasm2/ir/translators/z3_ir.py | 31 |
1 files changed, 6 insertions, 25 deletions
diff --git a/miasm2/ir/translators/z3_ir.py b/miasm2/ir/translators/z3_ir.py index a2cf9271..85997db9 100644 --- a/miasm2/ir/translators/z3_ir.py +++ b/miasm2/ir/translators/z3_ir.py @@ -115,17 +115,8 @@ class TranslatorZ3(Translator): @endianness: (optional) memory endianness """ super(TranslatorZ3, self).__init__(**kwargs) - self.endianness = endianness self._mem = Z3Mem(endianness) - def is_little_endian(self): - """True if this memory is little endian.""" - return self.endianness == "<" - - def is_big_endian(self): - """True if this memory is big endian.""" - return not self.is_little_endian() - def from_ExprInt(self, expr): return z3.BitVecVal(expr.arg.arg, expr.size) @@ -200,25 +191,15 @@ class TranslatorZ3(Translator): elif expr.op == "bsf": size = expr.size src = res - if self.is_little_endian(): - res = z3.If((src & 1) != 0, 1, src) - for i in xrange(size - 2, -1, -1): - res = z3.If((src & (1 << i)) != 0, i, res) - else: - res = z3.If((src & (size - 1)) != 0, 1, src) - for i in xrange(size - 2): - res = z3.If((src & (1 << i)) != 0, i, res) + res = z3.If((src & 1) != 0, 1, src) + for i in xrange(size - 2, -1, -1): + res = z3.If((src & (1 << i)) != 0, i, res) elif expr.op == "bsr": size = expr.size src = res - if self.is_little_endian(): - res = z3.If((src & (size - 1)) != 0, 1, src) - for i in xrange(size - 2): - res = z3.If((src & (1 << i)) != 0, i, res) - else: - res = z3.If((src & 1) != 0, 1, src) - for i in xrange(size - 2, -1, -1): - res = z3.If((src & (1 << i)) != 0, i, res) + res = z3.If((src & (size - 1)) != 0, 1, src) + for i in xrange(size - 2): + res = z3.If((src & (1 << i)) != 0, i, res) else: raise NotImplementedError("Unsupported OP yet: %s" % expr.op) |