;------------------------------------------------------------------------------ | |
; | |
; Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR> | |
; 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 |