1 files changed, 7 insertions, 3 deletions
diff --git a/gdb/remote-sim.c b/gdb/remote-sim.c
index f2015f02577..baaf4397a42 100644
--- a/gdb/remote-sim.c
+++ b/gdb/remote-sim.c
@@ -529,9 +529,13 @@ gdbsim_store_register (struct target_ops *ops,
       if (nr_bytes > 0 && nr_bytes != register_size (gdbarch, regno))
 	internal_error (__FILE__, __LINE__,
 			_("Register size different to expected"));
-      /* FIXME: cagney/2002-05-27: Should check `nr_bytes == 0'
-	 indicating that GDB and the SIM have different ideas about
-	 which registers are fetchable.  */
+      if (nr_bytes < 0)
+        internal_error (__FILE__, __LINE__,
+ 			_("Register %d not updated"), regno);
+      if (nr_bytes == 0)
+        warning (_("Register %s not updated"),
+                 gdbarch_register_name (gdbarch, regno));
+
       if (remote_debug)
 	{
 	  printf_filtered ("gdbsim_store_register: %d", regno);