diff --git a/abstract-machine/am/src/platform/nemu/ioe/timer.c b/abstract-machine/am/src/platform/nemu/ioe/timer.c
index 4592be6..251c31f 100644
--- a/abstract-machine/am/src/platform/nemu/ioe/timer.c
+++ b/abstract-machine/am/src/platform/nemu/ioe/timer.c
@@ -3,6 +3,13 @@
 
 #define GET_TIME() ((uint64_t) (uint32_t)inl(RTC_ADDR) | ((uint64_t) (uint32_t)inl(RTC_ADDR + 4) << 32))
 
+#define PNT_BITS(num) do { \
+    putch('T'); \
+    for (uint8_t size = 64; size; size --) \
+      putch('0' + ((num >> (size - 1)) & 1)); \
+    putch('\n'); \
+  } while (0)
+
 uint64_t __timer_start;
 
 void __am_timer_init() {
@@ -11,6 +18,7 @@ void __am_timer_init() {
 
 void __am_timer_uptime(AM_TIMER_UPTIME_T *uptime) {
   (*(volatile AM_TIMER_UPTIME_T *)uptime).us = GET_TIME() - __timer_start;
+    PNT_BITS(uptime->us);
 }
 
 void __am_timer_rtc(AM_TIMER_RTC_T *rtc) {