1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
/*
* Ported to boot 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
*
* Mach Operating System
* Copyright (c) 1992, 1991 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
/*
* HISTORY
* $Log: boot2.s,v $
* Revision 2.2 92/04/04 11:35:26 rpd
* From 2.5
* [92/03/30 rvb]
*
* Revision 2.2 91/04/02 14:39:21 mbj
* Put into rcs tree
* [90/02/09 rvb]
*
*/
#include "asm.h"
#define LOADMSG 1
/*
* boot2() -- second stage boot
*/
.globl _ouraddr
ENTRY(boot2)
movl %cs, %ax
movl %ax, %ds
movl %ax, %es
data32
sall $4, %eax
data32
movl %eax, _ouraddr
/* save the drive type and ID */
data32
pushl %edx
/* change to protected mode */
data32
call _real_to_prot
call _boot
ret
.data
.align 2
_ouraddr:
.long 0
|
