1;------------------------------------------------------------------------------
2;
3; Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
4; SPDX-License-Identifier: BSD-2-Clause-Patent
5;
6; Module Name:
7;
8;   CpuId.Asm
9;
10; Abstract:
11;
12;   AsmCpuid function
13;
14; Notes:
15;
16;------------------------------------------------------------------------------
17
18    SECTION .text
19
20;------------------------------------------------------------------------------
21;  VOID
22;  EFIAPI
23;  AsmCpuid (
24;    IN   UINT32  RegisterInEax,
25;    OUT  UINT32  *RegisterOutEax  OPTIONAL,
26;    OUT  UINT32  *RegisterOutEbx  OPTIONAL,
27;    OUT  UINT32  *RegisterOutEcx  OPTIONAL,
28;    OUT  UINT32  *RegisterOutEdx  OPTIONAL
29;    );
30;------------------------------------------------------------------------------
31global ASM_PFX(AsmCpuid)
32ASM_PFX(AsmCpuid):
33    push    ebx
34    push    ebp
35    mov     ebp, esp
36    mov     eax, [ebp + 12]
37    cpuid
38    push    ecx
39    mov     ecx, [ebp + 16]
40    jecxz   .0
41    mov     [ecx], eax
42.0:
43    mov     ecx, [ebp + 20]
44    jecxz   .1
45    mov     [ecx], ebx
46.1:
47    mov     ecx, [ebp + 24]
48    jecxz   .2
49    pop     DWORD [ecx]
50.2:
51    mov     ecx, [ebp + 28]
52    jecxz   .3
53    mov     [ecx], edx
54.3:
55    mov     eax, [ebp + 12]
56    leave
57    pop     ebx
58    ret
59
60