Update copyright for files modified in this year

[mirror_edk2.git] / MdePkg / Library / BaseLib / X64 / CpuId.asm

;------------------------------------------------------------------------------\r
;\r
; Copyright (c) 2006 - 2008, Intel Corporation\r
; All rights reserved. This program and the accompanying materials\r
; are licensed and made available under the terms and conditions of the BSD License\r
; which accompanies this distribution.  The full text of the license may be found at\r
; http://opensource.org/licenses/bsd-license.php\r
;\r
; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
;\r
; Module Name:\r
;\r
;   CpuId.Asm\r
;\r
; Abstract:\r
;\r
;   AsmCpuid function\r
;\r
; Notes:\r
;\r
;------------------------------------------------------------------------------\r
\r
    .code\r
\r
;------------------------------------------------------------------------------\r
;  VOID\r
;  EFIAPI\r
;  AsmCpuid (\r
;    IN   UINT32  RegisterInEax,\r
;    OUT  UINT32  *RegisterOutEax  OPTIONAL,\r
;    OUT  UINT32  *RegisterOutEbx  OPTIONAL,\r
;    OUT  UINT32  *RegisterOutEcx  OPTIONAL,\r
;    OUT  UINT32  *RegisterOutEdx  OPTIONAL\r
;    )\r
;------------------------------------------------------------------------------\r
AsmCpuid    PROC    USES    rbx\r
    mov     eax, ecx\r
    push    rax                         ; save Index on stack\r
    push    rdx\r
    cpuid\r
    test    r9, r9\r
    jz      @F\r
    mov     [r9], ecx\r
@@:\r
    pop     rcx\r
    jrcxz   @F\r
    mov     [rcx], eax\r
@@:\r
    mov     rcx, r8\r
    jrcxz   @F\r
    mov     [rcx], ebx\r
@@:\r
    mov     rcx, [rsp + 38h]\r
    jrcxz   @F\r
    mov     [rcx], edx\r
@@:\r
    pop     rax                         ; restore Index to rax as return value\r
    ret\r
AsmCpuid    ENDP\r
\r
    END\r