Fully synchronize sys/boot from FreeBSD-5.x, but add / to the module path
[dragonfly.git] / sys / boot / ia64 / skiload / start.S
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1/*
2 * Copyright (c) 2003 Marcel Moolenaar
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
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 * $FreeBSD: src/sys/boot/ia64/skiload/start.S,v 1.1 2003/07/17 01:49:59 marcel Exp $
27 * $DragonFly: src/sys/boot/ia64/skiload/start.S,v 1.1 2003/11/10 06:08:37 dillon Exp $
28 */
29
30#include <machine/fpu.h>
31
32#define STACKSIZE 16384
33#define FPSR_DEFAULT 0x0009804c0270033f
34
35 .text
36 .global _start
37 .proc _start
38_start:
39{ .mlx
40 mov ar.rsc=0
41 movl gp=__gp
42 ;;
43}
44{ .mlx
45 add r2=@gprel(stack),gp
46 movl r14=FPSR_DEFAULT
47 ;;
48}
49{ .mib
50 mov ar.bspstore=r2
51 add r12=STACKSIZE-16,r2
52 bsw.1
53 ;;
54}
55{ .mmb
56 mov ar.rsc=3
57 mov ar.fpsr=r14
58 br.sptk ski_main
59 ;;
60}
61 .endp _start
62
63 .data
64 .align 16
65stack: .skip STACKSIZE