text: #!/usr/bin/python
  from unicorn import *
  from unicorn.x86_const import *
  
  import regress
  
  ESP = 0x2000
  PAGE_SIZE = 1 * 1024 * 1024
  
  #   wait
  #   fnstcw  word ptr [esp]
  #   pop ecx
  CODE = b'\x9B\xD9\x3C\x24\x59'
  
  def hook_mem_write(uc, access, address, size, value, user_data):
      print("mem WRITE: 0x%x, data size = %u, data value = 0x%x" % (address, size, value))
      return True
  
  class FpuWrite(regress.RegressTest):
  
      def mem_reader(self, mu, addr, size, expected):
          tmp = mu.mem_read(addr, size)
          for i, e in zip(tmp, expected):
              self.assertEquals(e, i)
  
      def runTest(self):
          mu = Uc(UC_ARCH_X86, UC_MODE_32)
          mu.mem_map(0, PAGE_SIZE)
          mu.mem_write(0, CODE)
          mu.reg_write(UC_X86_REG_ESP, ESP)
  
          mu.hook_add(UC_HOOK_MEM_WRITE, hook_mem_write)
          mu.emu_start(0x0, 5, 0, 2)
          esp = mu.reg_read(UC_X86_REG_ESP)
          self.mem_reader(mu, esp, 10, [0] * 10)
  
  if __name__ == '__main__':
      regress.main()
  