local cpu = manager.machine.devices[":maincpu"]
local n = 0
local last = 0
print("XIE-PC sampler armed")
emu.register_periodic(function()
  n = n + 1
  local pc = cpu.state["PC"].value
  if n % 40 == 0 and pc ~= last then
    last = pc
    print(string.format("PCSAMPLE %08X", pc & 0xFFFFFFFF))
  end
end)