mirror of https://github.com/acidanthera/audk.git
65 lines
1.7 KiB
NASM
65 lines
1.7 KiB
NASM
;------------------------------------------------------------------------------
|
|
;
|
|
; 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:
|
|
;
|
|
; 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
|