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      1 /*	$NetBSD: start.S,v 1.4 2023/10/08 03:57:47 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  *
     15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     25  */
     26 
     27 #include <m68k/asm.h>
     28 
     29 	.text
     30 	.align	4
     31 
     32 ASENTRY_NOPROFILE(start)
     33 	jra	1f
     34 	.word	0
     35 	.word	0
     36 	.word	0
     37 	.word	0
     38 	.word	0
     39 	.word	0
     40 
     41 
     42 	/* disklabel here */
     43 	.space	0x1f0
     44 
     45 1:
     46 	lea	0x3e0000,%sp	|
     47 	movl	%d7,%sp@-	| %d7: bootargs
     48 	movl	%d6,%sp@-	| %d6: bootdev
     49 	movl	%d5,%sp@-	| %d5: kernel
     50 	movl	%d4,%sp@-	| %d4: physmem
     51 
     52 	jbsr	_C_LABEL(bootxx)
     53 	lea	%sp@(16),%sp
     54 
     55 	jra	_C_LABEL(rom_halt)
     56