sim/m32c/blinky.S

   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 ;;; The GNU simulators are free software; you can redistribute them
   9 ;;; and/or modify them under the terms of the GNU General Public
  10 ;;; License as published by the Free Software Foundation; either
  11 ;;; version 2 of the License, or (at your option) any later version.
  12 ;;;
  13 ;;; The GNU simulators are distributed in the hope that they will be
  14 ;;; useful, but WITHOUT ANY WARRANTY; without even the implied
  15 ;;; warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  16 ;;; PURPOSE. See the GNU General Public License for more details.
  17 ;;;
  18 ;;; You should have received a copy of the GNU General Public License
  19 ;;; along with the GNU simulators; if not, write to the Free Software
  20 ;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  21 ;;; 02110-1301, USA
  22
  23         .text
  24
  25         .global _start
  26 _start:
  27         mov.w   #0xe1,a0
  28 top:
  29         sub.w   #1,r0
  30         mov.b   r0h,[a0]
  31
  32         mov.w   #1000,r1
  33 loop:
  34         adjnz.w #-1,r1,loop
  35
  36         jmp.w   top