diff --git a/tools/sbl_uni.py b/tools/sbl_uni.py
index 33406cb..7a36f72 100644
--- a/tools/sbl_uni.py
+++ b/tools/sbl_uni.py
@@ -150,7 +150,8 @@ def main():
         count[0] += 1
         last[0] = addr
         if count[0] % 2000000 == 0:
-            print('prog:', count[0], hex(addr), flush=True)
+            from unicorn.arm_const import UC_ARM_REG_SP as _SX
+            print('prog:', count[0], hex(addr), hex(mu.reg_read(_SX)), flush=True)
         _pp = _prev[0]
         _prev[0] = addr
         if addr == _pp + 2 or addr == _pp + 4: