unicorn/bindings/python/sample_m68k.py

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#!/usr/bin/env python
# Sample code for ARM of Unicorn. Nguyen Anh Quynh <aquynh@gmail.com>
# Python sample ported by Loi Anh Tuan <loianhtuan@gmail.com>
from __future__ import print_function
from unicorn import *
from unicorn.m68k_const import *
# code to be emulated
M68K_CODE = "\x76\xed" # movq #-19, %d3
# memory address where emulation starts
ADDRESS = 0x10000
# callback for tracing basic blocks
def hook_block(uc, address, size, user_data):
print(">>> Tracing basic block at 0x%x, block size = 0x%x" %(address, size))
# callback for tracing instructions
def hook_code(uc, address, size, user_data):
print(">>> Tracing instruction at 0x%x, instruction size = %u" %(address, size))
# Test ARM
def test_m68k():
print("Emulate M68K code")
try:
# Initialize emulator in ARM mode
mu = Uc(UC_ARCH_M68K, UC_MODE_BIG_ENDIAN)
# map 2MB memory for this emulation
mu.mem_map(ADDRESS, 2 * 1024 * 1024)
# write machine code to be emulated to memory
mu.mem_write(ADDRESS, M68K_CODE)
# initialize machine registers
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mu.reg_write(UC_M68K_REG_D3, 0x1234)
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# tracing all basic blocks with customized callback
mu.hook_add(UC_HOOK_BLOCK, hook_block)
# tracing all instructions with customized callback
mu.hook_add(UC_HOOK_CODE, hook_code)
# emulate machine code in infinite time
mu.emu_start(ADDRESS, ADDRESS + len(M68K_CODE))
# now print out some registers
print(">>> Emulation done. Below is the CPU context")
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d3 = mu.reg_read(UC_M68K_REG_D3)
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print(">>> D3 = 0x%x" %d3)
except UcError as e:
print("ERROR: %s" % e)
if __name__ == '__main__':
test_m68k()