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start.S revision 1.2 
      1 /*	$NetBSD: start.S,v 1.2 2000/11/25 04:42:07 tsutsui Exp $	*/
      2 
      3 /*-
      4  * Copyright (C) 1999 Izumi Tsutsui. All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. The name of the author may not be used to endorse or promote products
     15  *    derived from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <m68k/asm.h>
     30 
     31 	.text
     32 	.align	4
     33 
     34 ASENTRY_NOPROFILE(start)
     35 	jra	1f
     36 	.word	0
     37 	.word	0
     38 	.word	0
     39 	.word	0
     40 	.word	0
     41 	.word	0
     42 
     43 
     44 	/* disklabel here */
     45 	.space	0x1f0
     46 
     47 1:
     48 	lea	0x3e0000,%sp	|
     49 	movl	%d7,%sp@-	| %d7: bootargs
     50 	movl	%d6,%sp@-	| %d6: bootdev
     51 	movl	%d5,%sp@-	| %d5: kernel
     52 	movl	%d4,%sp@-	| %d4: physmem
     53 
     54 	jbsr	_C_LABEL(bootxx)
     55 	lea	%sp@(16),%sp
     56 
     57 	jra	_C_LABEL(rom_halt)
     58