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f1baef62 | 1 | #------------------------------------------------------------------------------ |
2 | # | |
3 | # Copyright (c) 2006, Intel Corporation | |
4 | # All rights reserved. This program and the accompanying materials | |
5 | # are licensed and made available under the terms and conditions of the BSD License | |
6 | # which accompanies this distribution. The full text of the license may be found at | |
7 | # http://opensource.org/licenses/bsd-license.php | |
8 | # | |
9 | # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
10 | # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
11 | # | |
12 | # Module Name: | |
13 | # | |
14 | # CpuIdEx.Asm | |
15 | # | |
16 | # Abstract: | |
17 | # | |
18 | # AsmCpuidEx function | |
19 | # | |
20 | # Notes: | |
21 | # | |
22 | #------------------------------------------------------------------------------ | |
23 | ||
24 | .686: | |
25 | .code: | |
26 | ||
27 | #------------------------------------------------------------------------------ | |
28 | # UINT32 | |
29 | # EFIAPI | |
30 | # AsmCpuidEx ( | |
31 | # IN UINT32 RegisterInEax, | |
32 | # IN UINT32 RegisterInEcx, | |
33 | # OUT UINT32 *RegisterOutEax OPTIONAL, | |
34 | # OUT UINT32 *RegisterOutEbx OPTIONAL, | |
35 | # OUT UINT32 *RegisterOutEcx OPTIONAL, | |
36 | # OUT UINT32 *RegisterOutEdx OPTIONAL | |
37 | # ) | |
38 | #------------------------------------------------------------------------------ | |
39 | .globl ASM_PFX(AsmCpuidEx) | |
40 | ASM_PFX(AsmCpuidEx): | |
41 | push %ebx | |
42 | push %ebp | |
43 | movl %esp, %ebp | |
44 | movl 12(%ebp), %eax | |
45 | movl 16(%ebp), %ecx | |
46 | cpuid | |
47 | push %ecx | |
48 | movl 20(%ebp), %ecx | |
49 | jecxz L1 | |
50 | movl %eax, (%ecx) | |
51 | L1: | |
52 | movl 24(%ebp), %ecx | |
53 | jecxz L2 | |
54 | movl %ebx, (%ecx) | |
55 | L2: | |
56 | movl 28(%ebp), %ecx | |
57 | jecxz L3 | |
58 | popl (%ecx) | |
59 | L3: | |
60 | movl 32(%ebp), %edx | |
61 | jecxz L4 | |
62 | movl %edx, (%ecx) | |
63 | L4: | |
64 | movl 12(%ebp), %eax | |
65 | leave | |
66 | pop %ebx | |
67 | ret |