mirror of https://github.com/acidanthera/audk.git
55 lines
1.5 KiB
ArmAsm
55 lines
1.5 KiB
ArmAsm
#------------------------------------------------------------------------------
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#
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# Copyright (c) 2008, 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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# EfiSetMemRep4.S
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#
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# Abstract:
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#
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# SetMem function
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#
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# Notes:
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#
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#------------------------------------------------------------------------------
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#include <EfiBind.h>
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.code:
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.global ASM_PFX(EfiCommonLibCopyMem)
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#------------------------------------------------------------------------------
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# VOID
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# EfiCommonLibSetMem (
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# OUT VOID *Buffer,
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# IN UINTN Size,
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# IN UINT8 Value
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# );
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#------------------------------------------------------------------------------
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ASM_PFX(EfiCommonLibSetMem):
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push %rdi
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cmp $0x0,%rdx
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je SetDone
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mov %rcx,%rdi
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mov %r8b,%al
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mov %al,%ah
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shrd $0x10,%eax,%ecx
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shld $0x10,%ecx,%eax
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mov %rdx,%rcx
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shr $0x2,%rcx
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rep stos %eax,%es:(%rdi)
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mov %rdx,%rcx
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and $0x3,%rcx
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rep stos %al,%es:(%rdi)
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SetDone:
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pop %rdi
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retq
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