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[netwatch.git] / grubload / multiboot_asm.S
1 /* multiboot_asm.S
2  * Multiboot header
3  * NetWatch multiboot loader
4  *
5  * Copyright (c) 2008 Jacob Potter and Joshua Wise.  All rights reserved.
6  * This program is free software; you can redistribute and/or modify it under
7  * the terms found in the file LICENSE in the root of this source tree. 
8  *
9  */
10
11 .globl _start
12
13 _start:
14         jmp multiboot_entry
15
16         .align 4
17 multiboot_header:
18         .long 0x1badb002        /* Magic value */
19         .long 0x00000001        /* Flags -- "Please align modules for me" */
20         .long 0xE4524FFD        /* Checksum */
21
22 multiboot_entry:
23         mov $_stack_top, %esp
24         pushl %ebx      /* Multiboot info structure */
25         pushl %eax      /* Magic number */
26         call c_start
27 hang:   jmp hang
28
29         .section .bss
30         .align 4
31 _stack:
32         .space 16384
33 _stack_top:
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