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add fallback check w/ and w/o VEX prefix to AT&T to match intel syntax

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This commit is contained in:
JanLJL
2025-08-13 14:39:15 +02:00
parent b4978c724a
commit 590f915f85
1 changed files with 13 additions and 4 deletions
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17
osaca/parser/parser_x86att.py
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@@ -75,10 +75,19 @@ class ParserX86ATT(ParserX86):
if not model:
# Check for instruction without GAS suffix.
if mnemonic[-1] in self.GAS_SUFFIXES:
mnemonic = mnemonic[:-1]
model = arch_model.get_instruction(mnemonic, instruction_form.operands)
if model:
instruction_form.mnemonic = mnemonic
nongas_mnemonic = mnemonic[:-1]
if arch_model.get_instruction(nongas_mnemonic, instruction_form.operands):
mnemonic = nongas_mnemonic
# Check for non-VEX version and vice-versa
elif mnemonic[0] == "v":
unvexed_mnemonic = mnemonic[1:]
if arch_model.get_instruction(unvexed_mnemonic, len(instruction_form.operands)):
mnemonic = unvexed_mnemonic
else:
vexed_mnemonic = "v" + mnemonic
if arch_model.get_instruction(vexed_mnemonic, len(instruction_form.operands)):
mnemonic = vexed_mnemonic
instruction_form.mnemonic = mnemonic
def construct_parser(self):
"""Create parser for x86 AT&T ISA."""