diff --git a/orao/timer.py b/orao/timer.py
index 4f3a604..abef45b 100644
--- a/orao/timer.py
+++ b/orao/timer.py
@@ -1,11 +1,14 @@
 
 timer = {}
+timer_pos = {}
 
 def mem_listener(addr, val, cpu):
 	if addr >= 0xa000 and addr <= 0xa0ff:
 		timer_ix = addr & 0xff
 		if timer_ix in timer:
-			print('timer(%s):duration %d cy' % (timer_ix, cpu.cycles - timer[timer_ix] - 4))
+			print('timer(%3d:%04x-%04x):duration %d cy' % (timer_ix, timer_pos[timer_ix], cpu.pc-1, cpu.cycles - timer[timer_ix] - 4))
 			del timer[timer_ix]
+			del timer_pos[timer_ix]
 		else:
 			timer[timer_ix] = cpu.cycles
+			timer_pos[timer_ix] = cpu.pc+2