blob: 62af7d17abc3858a889d604ab225bd1de7b13c96 (
plain)
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
|
.set ALIGN, 1<<0
.set MEMINFO, 1<<1
.set GFXMODE, 1<<2 # this flag enables the graphics fields
.set FLAGS, ALIGN | MEMINFO
.set MAGIC, 0x1BADB002 # multiboot magic
.set CHECKSUM, -(MAGIC + FLAGS)
.section .multiboot
.align 4
multiboot_header:
.long MAGIC
.long FLAGS
.long CHECKSUM
.long 0
.long 0
.long 0
.long 0
.long 0
.long 1 # text mode
.long 0
.long 0
.long 0
.section .stack
stack_bottom: # Stack grows up in addresses, so bottom is
# lower in memory than the top
.skip 16384 # 16KB stack
stack_top:
.section .text
.global _start
.type _start, @function
_start:
cli
movl $stack_top, %esp
push %eax # multiboot magic
push %ebp # multiboot header
call main
cli
hlt
.Lhang: # Idle
jmp .Lhang
|
