mirror of https://github.com/acidanthera/audk.git
42 lines
1.1 KiB
ArmAsm
42 lines
1.1 KiB
ArmAsm
#------------------------------------------------------------------------------
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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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# ARShiftU64.asm
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#
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# Abstract:
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#
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# 64-bit arithmetic right shift function for IA-32
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#
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#------------------------------------------------------------------------------
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.global _ARShiftU64
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_ARShiftU64:
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movb 12(%esp),%cl
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movl 8(%esp),%eax
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cltd
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testb $32,%cl
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# MISMATCH: " cmovz edx, eax"
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cmovz %eax, %edx
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# MISMATCH: " cmovz eax, [esp + 4]"
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cmovz 4(%esp), %eax
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shrdl %cl,%edx,%eax
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sar %cl,%edx
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ret
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