File: blinky.S

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;;; blinky.S --- sample program to blink LED's on M32C simulator
;;; 
;;; Copyright (C) 2005, 2007-2012 Free Software Foundation, Inc.
;;; Contributed by Red Hat, Inc.
;;;
;;; This file is part of the GNU simulators.
;;;
;;; This program is free software; you can redistribute it and/or modify
;;; it under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or
;;; (at your option) any later version.
;;;
;;; This program is distributed in the hope that it will be useful,
;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with this program.  If not, see <http://www.gnu.org/licenses/>.

	.text

	.global _start
_start:
	mov.w	#0xe1,a0
top:
	sub.w	#1,r0
	mov.b	r0h,[a0]

	mov.w	#1000,r1
loop:
	adjnz.w	#-1,r1,loop

	jmp.w	top