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Added handling of SSE movs for x86 #91

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Merged
merged 1 commit into from
Sep 9, 2018
Merged

Added handling of SSE movs for x86 #91

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17 changes: 14 additions & 3 deletions plasma/lib/arch/x86/output.py
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Original file line number Diff line number Diff line change
Expand Up @@ -30,7 +30,8 @@
X86_INS_MOVSW, X86_INS_MOVSD, X86_INS_MOVSQ, X86_INS_LODSB,
X86_INS_LODSW, X86_INS_LODSD, X86_INS_LODSQ, X86_INS_CMPSB,
X86_INS_CMPSW, X86_INS_CMPSD, X86_INS_CMPSQ, X86_INS_SCASB,
X86_INS_SCASW, X86_INS_SCASD, X86_INS_SCASQ, X86_INS_XADD, X86_PREFIX_LOCK)
X86_INS_SCASW, X86_INS_SCASD, X86_INS_SCASQ, X86_INS_XADD, X86_PREFIX_LOCK,
X86_INS_MOVSS, X86_INS_MOVAPD, X86_INS_MOVAPS, X86_INS_MOVUPS, X86_INS_MOVUPD)

from plasma.lib.output import OutputAbs
from plasma.lib.arch.x86.utils import (inst_symbol, is_call, is_jump, is_ret,
Expand Down Expand Up @@ -65,9 +66,12 @@
INST_MOVS = {X86_INS_MOVSB, X86_INS_MOVSW, X86_INS_MOVSD, X86_INS_MOVSQ}
INST_CMPS = {X86_INS_CMPSB, X86_INS_CMPSW, X86_INS_CMPSD, X86_INS_CMPSQ}
INST_SCAS = {X86_INS_SCASB, X86_INS_SCASW, X86_INS_SCASD, X86_INS_SCASQ}
INST_MOV_SSE = {X86_INS_MOVSD, X86_INS_MOVSS, X86_INS_MOVAPD, X86_INS_MOVAPS, X86_INS_MOVUPS, X86_INS_MOVUPD}

REP_PREFIX = {X86_PREFIX_REPNE, X86_PREFIX_REP}

def is_sse_movd(i):
return i.id == X86_INS_MOVSD and i.bytes[0] == 0xF2

class Output(OutputAbs):
def _operand(self, i, num_op, hexa=False, show_deref=True,
Expand Down Expand Up @@ -415,9 +419,10 @@ def _sub_asm_inst(self, i, tab=0):
self._add(" += D ? -{0} : {0}".format(i.operands[0].size))
return

if i.id in INST_MOVS:
# Be sure to differentiate between the SSE instruction MOVSD and the non SSE move string
if i.id in INST_MOVS and not is_sse_movd(i):
self._operand(i, 0)
self._add(" = ")
self._add("( = ")
self._operand(i, 1)
self._new_line()
self._tabs(tab)
Expand All @@ -431,6 +436,12 @@ def _sub_asm_inst(self, i, tab=0):
self._add(" += D ? -{0} : {0}".format(i.operands[0].size))
return

if i.id in INST_MOV_SSE:
self._operand(i, 0)
self._add(" = ")
self._operand(i, 1)
return

if is_imm:
self._section("!")
self._add("mov ")
Expand Down