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keystone/suite/regress/x64_lea_label_nasm_abs.py

32 lines
914 B

3 years ago
#!/usr/bin/python
# Ingmar Steen, 2016
# This is to test nasm syntax' explicit abs addressing
# Github issue: #32
# Author: Ingmar Steen
from keystone import *
import regress
class TestX64NasmLabelAbs(regress.RegressTest):
def runTest(self):
# Initialize Keystone engine
ks = Ks(KS_ARCH_X86, KS_MODE_64)
# change the syntax to NASM
ks.syntax = KS_OPT_SYNTAX_NASM
# nasm uses abs for explicit absolute addressing
encoding, count = ks.asm(b"lea rax, [abs __data]\n__data:")
self.assertEqual(encoding, [ 0x48, 0x8d, 0x04, 0x25, 0x08, 0x00, 0x00, 0x00 ])
# verify that explicit absolute addressing is indeed absolute
encoding, count = ks.asm(b"nop\nnop\nlea rax, [abs __data]\n__data:")
self.assertEqual(encoding, [ 0x90, 0x90, 0x48, 0x8d, 0x04, 0x25, 0x0a, 0x00, 0x00, 0x00 ])
if __name__ == '__main__':
regress.main()