#!/usr/bin/python

from unicorn import *
from unicorn.x86_const import *
from unicorn.arm_const import *

# adds  r1, #0x48
# ldrsb r7, [r7, r7]
# ldrsh r7, [r2, r1]
# ldr   r0, [pc, #0x168]
# cmp   r7, #0xbf
# str   r7, [r5, #0x20]
# ldr   r1, [r5, #0x64]
# strb  r7, [r5, #0xc]
# ldr   r0, [pc, #0x1a0]
binary1 = b'\x48\x31\xff\x57\x57\x5e\x5a\x48\xbf\x2f\x2f\x62\x69\x6e\x2f\x73\x68\x48\xc1\xef\x08\x57\x54\x5f\x6a\x3b\x58\x0f\x05'
binary1 = b'\x48\x31\xff\x57'
#adds r1, #0x48
#ldrsb  r7, [r7, r7]

mu = Uc(UC_ARCH_ARM, UC_MODE_THUMB)

mu.mem_map(0, 2 * 1024 * 1024)

# write machine code to be emulated to memory
mu.mem_write(0, binary1)

mu.reg_write(ARM_REG_R13, 1*1024*1024)

pos = 0

# emu for maximum 1 instruction.
mu.emu_start(pos, len(binary1), 0, 1)

print("R1 = %x" % mu.reg_read(ARM_REG_R1))

pos = mu.reg_read(ARM_REG_R15)

print("RIP = %x" %pos)