* remote-sim.c (simulator_command): Add comment about dealing with

NULL or empty args.
start-sanitize-tic80
	* Makefile.in (tic80-tdep.o): Add target.
	* configure.tgt: Add tic80 case.
	* tic80-tdep.c: New file.
	* config/tic80/{tic80.mt, tm-tic80.h}: New files.
end-sanitize-tic80

gdb/remote-sim.c

@@ -709,7 +709,8 @@ simulator_command (args, from_tty)
   /* Note that if the simulator hasn't been opened, gdbsim_desc == NULL
      which is correct (??? assuming of course one wishes to continue to
      allow commands to be sent to unopened simulators, which isn't entirely
-     unreasonable).  */
+     unreasonable).  Simulators should be prepared to deal with any
+     combination of NULL or empty args. */
   sim_do_command (gdbsim_desc, args);
 }