1;;; blinky.S --- sample program to blink LED's on M32C simulator 2;;; 3;;; Copyright (C) 2005, 2007 Free Software Foundation, Inc. 4;;; Contributed by Red Hat, Inc. 5;;; 6;;; This file is part of the GNU simulators. 7;;; 8;;; This program is free software; you can redistribute it and/or modify 9;;; it under the terms of the GNU General Public License as published by 10;;; the Free Software Foundation; either version 3 of the License, or 11;;; (at your option) any later version. 12;;; 13;;; This program is distributed in the hope that it will be useful, 14;;; but WITHOUT ANY WARRANTY; without even the implied warranty of 15;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16;;; GNU General Public License for more details. 17;;; 18;;; You should have received a copy of the GNU General Public License 19;;; along with this program. If not, see <http://www.gnu.org/licenses/>. 20 21 .text 22 23 .global _start 24_start: 25 mov.w #0xe1,a0 26top: 27 sub.w #1,r0 28 mov.b r0h,[a0] 29 30 mov.w #1000,r1 31loop: 32 adjnz.w #-1,r1,loop 33 34 jmp.w top 35