1be8039054
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Gao, Liming <liming.gao@intel.com> Reviewed-by: Andrew Fish <afish@apple.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15784 6f19259b-4bc3-4df7-8a09-765794883524
68 lines
1.8 KiB
ArmAsm
68 lines
1.8 KiB
ArmAsm
#------------------------------------------------------------------------------
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#
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# Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR>
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# This program and the accompanying materials
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# are licensed and made available under the terms and conditions of the BSD License
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# which accompanies this distribution. The full text of the license may be found at
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# http://opensource.org/licenses/bsd-license.php.
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#
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# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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#
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# Module Name:
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#
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# CpuIdEx.S
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#
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# Abstract:
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#
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# AsmCpuidEx function
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#
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# Notes:
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#
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#------------------------------------------------------------------------------
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.code:
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#------------------------------------------------------------------------------
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# UINT32
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# EFIAPI
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# AsmCpuidEx (
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# IN UINT32 RegisterInEax,
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# IN UINT32 RegisterInEcx,
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# OUT UINT32 *RegisterOutEax OPTIONAL,
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# OUT UINT32 *RegisterOutEbx OPTIONAL,
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# OUT UINT32 *RegisterOutEcx OPTIONAL,
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# OUT UINT32 *RegisterOutEdx OPTIONAL
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# )
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#------------------------------------------------------------------------------
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ASM_GLOBAL ASM_PFX(AsmCpuidEx)
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ASM_PFX(AsmCpuidEx):
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push %ebx
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push %ebp
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movl %esp, %ebp
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movl 12(%ebp), %eax
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movl 16(%ebp), %ecx
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cpuid
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push %ecx
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movl 20(%ebp), %ecx
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jecxz L1
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movl %eax, (%ecx)
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L1:
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movl 24(%ebp), %ecx
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jecxz L2
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movl %ebx, (%ecx)
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L2:
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movl 32(%ebp), %ecx
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jecxz L3
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movl %edx, (%ecx)
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L3:
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movl 28(%ebp), %ecx
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jecxz L4
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popl (%ecx)
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L4:
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movl 12(%ebp), %eax
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leave
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pop %ebx
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ret
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