1/*
2 *  GRUB  --  GRand Unified Bootloader
3 *  Copyright (C) 2000   Free Software Foundation, Inc.
4 *
5 *  This program is free software; you can redistribute it and/or modify
6 *  it under the terms of the GNU General Public License as published by
7 *  the Free Software Foundation; either version 2 of the License, or
8 *  (at your option) any later version.
9 *
10 *  This program is distributed in the hope that it will be useful,
11 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
12 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 *  GNU General Public License for more details.
14 *
15 *  You should have received a copy of the GNU General Public License
16 *  along with this program; if not, write to the Free Software
17 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 */
19
20	.file	"pxeloader.S"
21	.text
22
23	/* Start with the prehistoric environment... */
24	.code16
25
26	/* Let's go */
27.globl _start; _start:
28	movw	%sp, %bp
29	movw	%ss:4(%bp), %ax
30	pushw	%ax
31	movw	%ss:6(%bp), %ax
32	pushw	%ax
33	call	1f
341:	popw	%bx
35
36	/* Save !PXE address */
37	popw	%ax
38	movw	%ax, %cs:(pxeseg-1b)(%bx)
39	popw	%ax
40	movw	%ax, %cs:(pxeoff-1b)(%bx)
41	movw	%ax, %bx
42
43	/* Jump to the real world */
44	ljmp	$0, $0x8200
45
46	. = _start + 0x7C80 - 0x7C00
47pxeseg:	.word	0
48pxeoff:	.word	0
49
50	/* This region is a junk. Do you say that this is wasteful?
51	   But I like that the memory layout of the body is consistent
52	   among different stage2s rather than scamping just for 1.5KB. */
53	. = _start + 0x8200 - 0x7C00 - 1
54	.byte	0
55