diff options
| author | lgao4 <lgao4@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-05-14 09:16:36 +0000 |
|---|---|---|
| committer | lgao4 <lgao4@6f19259b-4bc3-4df7-8a09-765794883524> | 2006-05-14 09:16:36 +0000 |
| commit | c1288a3926ba67bfc41b915b1151f4105642b5cc (patch) | |
| tree | 0bd0bfa24ee69aa46227cee3092d78db79f0c688 /MdePkg/Library | |
| parent | 1b7b460ff9e302343d92c03d78dd713570051b36 (diff) | |
| download | edk2-platforms-c1288a3926ba67bfc41b915b1151f4105642b5cc.tar.xz | |
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@152 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdePkg/Library')
| -rw-r--r-- | MdePkg/Library/BaseLib/X64/CpuId.asm | 124 |
1 files changed, 62 insertions, 62 deletions
diff --git a/MdePkg/Library/BaseLib/X64/CpuId.asm b/MdePkg/Library/BaseLib/X64/CpuId.asm index 867e92a677..b5ac0fd2fc 100644 --- a/MdePkg/Library/BaseLib/X64/CpuId.asm +++ b/MdePkg/Library/BaseLib/X64/CpuId.asm @@ -1,62 +1,62 @@ -;------------------------------------------------------------------------------
-;
-; Copyright (c) 2006, Intel Corporation
-; All rights reserved. This program and the accompanying materials
-; are licensed and made available under the terms and conditions of the BSD License
-; which accompanies this distribution. The full text of the license may be found at
-; http://opensource.org/licenses/bsd-license.php
-;
-; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-;
-; Module Name:
-;
-; CpuId.Asm
-;
-; Abstract:
-;
-; AsmCpuid function
-;
-; Notes:
-;
-;------------------------------------------------------------------------------
-
- .code
-
-;------------------------------------------------------------------------------
-; VOID
-; EFIAPI
-; AsmCpuid (
-; IN UINT32 RegisterInEax,
-; OUT UINT32 *RegisterOutEax OPTIONAL,
-; OUT UINT32 *RegisterOutEbx OPTIONAL,
-; OUT UINT32 *RegisterOutEcx OPTIONAL,
-; OUT UINT32 *RegisterOutEdx OPTIONAL
-; )
-;------------------------------------------------------------------------------
-AsmCpuid PROC USES rbx
- mov eax, ecx
- push rdx
- push rax ; save Index on stack
- cpuid
- test r9, r9
- jz @F
- mov [r9], ecx
-@@:
- pop rcx
- jrcxz @F
- mov [rcx], eax
-@@:
- mov rcx, r8
- jrcxz @F
- mov [rcx], ebx
-@@:
- mov rcx, [rsp + 30h]
- jrcxz @F
- mov [rcx], edx
-@@:
- pop rax ; restore Index to rax as return value
- ret
-AsmCpuid ENDP
-
- END
+;------------------------------------------------------------------------------ +; +; Copyright (c) 2006, Intel Corporation +; All rights reserved. This program and the accompanying materials +; are licensed and made available under the terms and conditions of the BSD License +; which accompanies this distribution. The full text of the license may be found at +; http://opensource.org/licenses/bsd-license.php +; +; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +; +; Module Name: +; +; CpuId.Asm +; +; Abstract: +; +; AsmCpuid function +; +; Notes: +; +;------------------------------------------------------------------------------ + + .code + +;------------------------------------------------------------------------------ +; VOID +; EFIAPI +; AsmCpuid ( +; IN UINT32 RegisterInEax, +; OUT UINT32 *RegisterOutEax OPTIONAL, +; OUT UINT32 *RegisterOutEbx OPTIONAL, +; OUT UINT32 *RegisterOutEcx OPTIONAL, +; OUT UINT32 *RegisterOutEdx OPTIONAL +; ) +;------------------------------------------------------------------------------ +AsmCpuid PROC USES rbx + mov eax, ecx + push rdx + push rax ; save Index on stack + cpuid + test r9, r9 + jz @F + mov [r9], ecx +@@: + pop rcx + jrcxz @F + mov [rcx], eax +@@: + mov rcx, r8 + jrcxz @F + mov [rcx], ebx +@@: + mov rcx, [rsp + 38h] + jrcxz @F + mov [rcx], edx +@@: + pop rax ; restore Index to rax as return value + ret +AsmCpuid ENDP + + END |