def _d_clo(self, data):
if bits.get(data, 10, 6):
return None
return MIB('clo', None)(
MRO('srca', bits.get(data, 25, 21)),
MRO('srca_', bits.get(data, 20, 16)
), #according to the docs, srca and srca_ must be the same
MRO('dest', bits.get(data, 15, 11)))
def _d_srlv(self, data):
if bits.get(data, 10, 7):
return None
if bits.test(data, 6):
return MIB('rotrv', None)(MRO('dest', bits.get(data, 15, 11)),
MRO('src', bits.get(data, 20, 16)),
MIO('shift', bits.get(data, 25, 21)))
return MIB('srlv', None)(MRO('dest', bits.get(data, 15, 11)),
MRO('src', bits.get(data, 20, 16)),
MIO('shift', bits.get(data, 25, 21)))
def _d_movci(self, data):
if bits.get(data, 10, 6) or bits.test(data, 17):
return None
if bits.test(data, 16):
return MIB('movf', None)(MRO('src', bits.get(data, 25, 21)),
MIO('cc', bits.get(data, 20, 18)),
MRO('dest', bits.get(data, 15, 11)))
else:
return MIB('movt', None)(MRO('src', bits.get(data, 25, 21)),
MIO('cc', bits.get(data, 20, 18)),
MRO('dest', bits.get(data, 15, 11)))
def _d_seb(self, data):
if bits.get(data, 25, 21):
return None
return MIB('seb', None)(MRO('dest', bits.get(data, 15, 11)),
MRO('src', bits.get(data, 20, 16)))
def _d_rdhwr(self, data):
if bits.get(data, 10, 6) or bits.get(data, 25, 21):
return None
return MIB('rdhwr', None)(MRO('dest', bits.get(data, 20, 16)),
MIO('num', bits.get(data, 15, 11)))
def _d_movn(self, data):
if bits.get(data, 10, 6):
return None
return MIB('movn', None)(MRO('src', bits.get(data, 25, 21)),
MRO('predicate', bits.get(data, 20, 16)),
MRO('dest', bits.get(data, 15, 11)))
def _d_break(self, data):
return MIB('break', None)(MIO('code', bits.get(data, 25, 6)))
def _d_cache(self, data):
return MIB('cache', None)(MIO('op', bits.get(data, 20, 16)),
MMO('target',
MRO('base', bits.get(data, 25, 21)),
MIO('offset', bits.get(data, 15, 0))))
def _d_bnel(self, data):
return MIB('bnel', None)(MRO('lhs', bits.get(data, 25, 21)),
MRO('rhs', bits.get(data, 20, 16)),
MIO('target', bits.get(data, 15, 0)))
def _d_xori(self, data):
return MIB('xori', None)(MRO('lhs', bits.get(data, 25, 21)),
MRO('dest', bits.get(data, 20, 16)),
MIO('rhs', bits.get(data, 15, 0)))
def _d_synci(self, data):
return MIB('synci', None)(MMO(MRO('base', bits.get(data, 25, 21)),
MIO('offset', bits.get(data, 15,
0))))
def _d_bgezall(self, data):
return MIB('bgezall', None)(MRO('predicate',
bits.get(data, 25, 21)),
MIO('target', bits.get(data, 15, 0)))
def _d_tnei(self, data):
return MIB('tnei', None)(MRO('lhs', bits.get(data, 25, 21)),
MIO('rhs', bits.get(data, 15, 0)))
def _d_tne(self, data):
return MIB('tne', None)(MRO('srca', bits.get(data, 25, 21)),
MRO('srcb', bits.get(data, 20, 16)),
MRO('code', bits.get(data, 15, 6)))
def _d_mtlo(self, data):
if bits.get(data, 20, 6):
return None
return MIB('mtlo', None)(MRO('src', bits.get(data, 25, 21)))
def _d_mflo(self, data):
if bits.get(data, 25, 16) or bits.get(data, 10, 6):
return None
return MIB('mflo', None)(MRO('dest', bits.get(data, 15, 11)))
def _d_sync(self, data):
if bits.get(data, 25, 11):
return None
return MIB('sync', None)(MIO('stype', bits.get(data, 10, 6)))
def _d_jal(self, data):
return MIB('jal', None)(MIO('target', bits.get(data, 25, 0)))
def _d_addiu(self, data):
return MIB('addiu', None)(MRO('src', bits.get(data, 25, 21)),
MRO('dest', bits.get(data, 20, 16)),
MIO('addend', bits.get(data, 15, 0)))
def _d_mul(self, data):
if bits.get(data, 10, 6):
return None
return MIB('mul', None)(MRO('dest', bits.get(data, 25, 21)),
MRO('srca', bits.get(data, 20, 16)),
MRO('srcb', bits.get(data, 15, 11)))
def _d_lui(self, data):
if bits.get(data, 25, 21):
return None
return MIB('lui', None)(MRO('dest', bits.get(data, 20, 16)),
MIO('imm', bits.get(data, 15, 0)))
def _d_msubu(self, data):
if bits.get(data, 15, 6):
return None
return MIB('msubu', None)(MRO('srca', bits.get(data, 25, 21)),
MRO('srcb', bits.get(data, 20, 16)))
def _d_bgtzl(self, data):
if bits.get(data, 20, 16):
return None
return MIB('blgtzl', None)(MRO('predicate', bits.get(data, 25, 21)),
MIO('target', bits.get(data, 15, 0)))
def _d_sdc2(self, data):
return MIB('sdc2', None)(MIO('src', bits.get(data, 20, 16)),
MMO('dest', MRO('base',
bits.get(data, 25, 21)),
MIO('offset', bits.get(data, 15, 0))))
def _d_pref(self, data):
return MIB('pref', None)(MIO('hint', bits.get(data, 20, 16)),
MMO('dest', MRO('base',
bits.get(data, 25, 21)),
MIO('offset', bits.get(data, 15, 0))))
def _d_syscall(self, data):
return MIB('syscall', None)(MIO('code', bits.get(data, 25, 6)))
def _d_sll(self, data):
if bits.get(data, 25, 21):
return None
return MIB('sll', None)(MRO('dest', bits.get(data, 15, 11)),
MRO('src', bits.get(data, 20, 16)),
MIO('shift', bits.get(data, 10, 6)))
def _d_sdbbp(self, data):
return MIB('sdbbp', None)(MIO('code', bits.get(data, 25, 6)))
def decode(self, data):
decoder_name = self.decode_table[bits.get(
data, *self.row_bitrange)][bits.get(data, *self.col_bitrange)]
return decoder_name and getattr(self, decoder_name)(data)
def _d_ins(self, data):
return MIB('ins', None)(MRO('src', bits.get(data, 25, 21)),
MRO('dest', bits.get(data, 20, 16)),
MIO('size', bits.get(data, 15, 11)),
MIO('pos', bits.get(data, 10, 6)))
