#------------------------------------------------------------------------------

#

# 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:

#

# CpuId.S

#

# Abstract:

#

# AsmCpuid function

#

# Notes:

#

#------------------------------------------------------------------------------

ASM_GLOBAL ASM_PFX(AsmCpuid)

#------------------------------------------------------------------------------

# VOID

# EFIAPI

# AsmCpuid (

# IN UINT32 RegisterInEax,

# OUT UINT32 *RegisterOutEax OPTIONAL,

# OUT UINT32 *RegisterOutEbx OPTIONAL,

# OUT UINT32 *RegisterOutEcx OPTIONAL,

# OUT UINT32 *RegisterOutEdx OPTIONAL

# )

#------------------------------------------------------------------------------

ASM_PFX(AsmCpuid):

push %ebx

push %ebp

movl %esp, %ebp

movl 12(%ebp), %eax

cpuid

push %ecx

movl 16(%ebp), %ecx

jecxz L1

movl %eax, (%ecx)

L1:

movl 20(%ebp), %ecx

jecxz L2

movl %ebx, (%ecx)

L2:

movl 24(%ebp), %ecx

jecxz L3

popl (%ecx)

L3:

movl 28(%ebp), %ecx

jecxz L4

movl %edx, (%ecx)

L4:

movl 12(%ebp), %eax

leave

pop %ebx

ret