func: void cpu_tick_set_count(CPUTimer *timer, uint64_t count)
  
  {
  
      uint64_t real_count = count & ~timer->disabled_mask;
  
      uint64_t disabled_bit = count & timer->disabled_mask;
  
  
  
      int64_t vm_clock_offset = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) -
  
                      cpu_to_timer_ticks(real_count, timer->frequency);
  
  
  
      TIMER_DPRINTF("%s set_count count=0x%016lx (%s) p=%p\n",
  
                    timer->name, real_count,
  
                    timer->disabled?"disabled":"enabled", timer);
  
  
  
      timer->disabled = disabled_bit ? 1 : 0;
  
      timer->clock_offset = vm_clock_offset;
  
  }
  