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; 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:
;
; CpuId.Asm
;
; Abstract:
;
; AsmCpuid function
;
; Notes:
;
;------------------------------------------------------------------------------
.586P
.model flat,C
.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 ebx
push ebp
mov ebp, esp
mov eax, [ebp + 12]
cpuid
push ecx
mov ecx, [ebp + 16]
jecxz @F
mov [ecx], eax
@@:
mov ecx, [ebp + 20]
jecxz @F
mov [ecx], ebx
@@:
mov ecx, [ebp + 24]
jecxz @F
pop [ecx]
@@:
mov ecx, [ebp + 28]
jecxz @F
mov [ecx], edx
@@:
mov eax, [ebp + 12]
leave
ret
AsmCpuid ENDP
END
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