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#!/usr/bin/env python
'''
Created for Unicorn Engine by Eric Poole <eric.poole@aptiv.com>, 2022
Copyright 2022 Aptiv
'''
from __future__ import print_function
from unicorn import *
from unicorn.tricore_const import *
# code to be emulated
TRICORE_CODE = b"\x82\x11\xbb\x00\x00\x08" # mov d0, #0x1; mov.u d0, #0x8000
# 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 = 0x%x" %(address, size))
# Test TriCore
def test_tricore():
print("Emulate TriCore code")
try:
# Initialize emulator in TriCore mode
mu = Uc(UC_ARCH_TRICORE, UC_MODE_LITTLE_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, TRICORE_CODE)
# tracing all basic blocks with customized callback
mu.hook_add(UC_HOOK_BLOCK, hook_block)
# tracing one instruction at ADDRESS with customized callback
mu.hook_add(UC_HOOK_CODE, hook_code)
# emulate machine code in infinite time
mu.emu_start(ADDRESS, ADDRESS + len(TRICORE_CODE))
# now print out some registers
print(">>> Emulation done. Below is the CPU context")
r0 = mu.reg_read(UC_TRICORE_REG_D0)
print(">>> D0 = 0x%x" %r0)
except UcError as e:
print("ERROR: %s" % e)
if __name__ == '__main__':
test_tricore()
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