mirror of https://github.com/acidanthera/audk.git
49 lines
1.2 KiB
ArmAsm
49 lines
1.2 KiB
ArmAsm
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#------------------------------------------------------------------------------
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#
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# Copyright (c) 2006, Intel Corporation
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# All rights reserved. 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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# CompareMem.Asm
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#
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# Abstract:
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#
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# CompareMem function
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#
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# Notes:
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#
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# The following BaseMemoryLib instances share the same version of this file:
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#
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# BaseMemoryLibRepStr
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# BaseMemoryLibMmx
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# BaseMemoryLibSse2
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#
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#------------------------------------------------------------------------------
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.686:
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#.MODEL flat,C
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.code:
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.global _InternalMemCompareMem
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_InternalMemCompareMem:
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push %esi
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push %edi
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movl 12(%esp), %esi
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movl 16(%esp), %edi
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movl 20(%esp), %ecx
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repe cmpsb
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movzbl -1(%esi), %eax
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movzbl -1(%edi), %edx
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subl %edx, %eax
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subl %edx, %eax
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pop %edi
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pop %esi
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ret
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