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
|
/* SPDX-License-Identifier: GPL-2.0-only */
/* It is derived from the x86info project, which is GPLv2-licensed. */
/* calling syntax: docpuid(idx,eax,ebx,ecx,edx) */
.align 4
.text
.global docpuid
.type docpuid,@function
docpuid:
pushl %ebp
movl %esp, %ebp
pushl %edi
pushl %ebx
pushl %ecx
pushl %edx
movl 8(%ebp),%eax
cpuid
movl 12(%ebp),%edi
test %edi,%edi
jz L1
movl %eax, (%edi)
L1: movl 16(%ebp),%edi
test %edi,%edi
jz L2
movl %ebx,(%edi)
L2: movl 20(%ebp),%edi
test %edi,%edi
jz L3
movl %ecx,(%edi)
L3: movl 24(%ebp), %edi
test %edi,%edi
jz L4
movl %edx,(%edi)
L4: popl %edx
popl %ecx
popl %ebx
popl %edi
movl %ebp,%esp
popl %ebp
ret
.section .note.GNU-stack,"", @progbits
|
