diff options
Diffstat (limited to 'EDK/Foundation/Library/EdkIIGlueLib/Library/BaseLib/X64/CpuIdEx.asm')
| -rw-r--r-- | EDK/Foundation/Library/EdkIIGlueLib/Library/BaseLib/X64/CpuIdEx.asm | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/EDK/Foundation/Library/EdkIIGlueLib/Library/BaseLib/X64/CpuIdEx.asm b/EDK/Foundation/Library/EdkIIGlueLib/Library/BaseLib/X64/CpuIdEx.asm new file mode 100644 index 0000000..c6fce10 --- /dev/null +++ b/EDK/Foundation/Library/EdkIIGlueLib/Library/BaseLib/X64/CpuIdEx.asm @@ -0,0 +1,62 @@ +; Copyright (c) 2004, 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: +; +; CpuIdEx.Asm +; +; Abstract: +; +; AsmCpuidEx function +; +; Notes: +; +;------------------------------------------------------------------------------ + + .code + +;------------------------------------------------------------------------------ +; UINT32 +; EFIAPI +; AsmCpuidEx ( +; IN UINT32 RegisterInEax, +; IN UINT32 RegisterInEcx, +; OUT UINT32 *RegisterOutEax OPTIONAL, +; OUT UINT32 *RegisterOutEbx OPTIONAL, +; OUT UINT32 *RegisterOutEcx OPTIONAL, +; OUT UINT32 *RegisterOutEdx OPTIONAL +; ) +;------------------------------------------------------------------------------ +AsmCpuidEx PROC USES rbx + mov eax, ecx + mov ecx, edx + push rax ; save Index on stack + cpuid + mov r10, [rsp + 38h] + test r10, r10 + jz @F + mov [r10], ecx +@@: + mov rcx, r8 + jrcxz @F + mov [rcx], eax +@@: + mov rcx, r9 + jrcxz @F + mov [rcx], ebx +@@: + mov rcx, [rsp + 40h] + jrcxz @F + mov [rcx], edx +@@: + pop rax ; restore Index to rax as return value + ret +AsmCpuidEx ENDP + + END |