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File: [cvs.NetBSD.org] / src / sys / arch / news68k / stand / boot / locore.S (download)

Revision 1.2, Tue Feb 8 16:17:34 2000 UTC (22 years, 9 months ago) by tsutsui
Branch: MAIN
CVS Tags: netbsd-1-5-base, netbsd-1-5-RELEASE, netbsd-1-5-BETA2, netbsd-1-5-BETA, netbsd-1-5-ALPHA2, minoura-xpg4dl-base, minoura-xpg4dl, chs-ubc2-newbase
Branch point for: thorpej_scsipi, netbsd-1-5
Changes since 1.1: +1 -2 lines

Add news1200 support.
Based on a patch from Koichi NISHIWAKI <k-nis@ba2.so-net.ne.jp>

/*	$NetBSD: locore.S,v 1.2 2000/02/08 16:17:34 tsutsui Exp $	*/

/*-
 * Copyright (C) 1999 Izumi Tsutsui.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <m68k/asm.h>
#include <m68k/cpu.h>

	.text
	.align	4

ASENTRY_NOPROFILE(start)
	lea	_C_LABEL(edata),%a0	| clear out BSS
	movl	#_C_LABEL(end) - 4,%d0
	subl	#_C_LABEL(edata),%d0
	lsrl	#2,%d0
1:
	clrl	%a0@+
	dbra	%d0,1b

	jra	_C_LABEL(boot)
	jra	_ASM_LABEL(halt)

ENTRY_NOPROFILE(ICIA)
	movl	#0x9, %d0	| IC_CLEAR
	movc	%d0, %cacr
	rts