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- #
- # ConvertAsm.py: Automatically generated from ZeroMem.asm
- #
- #------------------------------------------------------------------------------
- #
- # Copyright (c) 2006 - 2009, 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:
- #
- # ZeroMem.S
- #
- # Abstract:
- #
- # ZeroMem function
- #
- # Notes:
- #
- #------------------------------------------------------------------------------
- #------------------------------------------------------------------------------
- # VOID *
- # InternalMemZeroMem (
- # IN VOID *Buffer,
- # IN UINTN Count
- # );
- #------------------------------------------------------------------------------
- ASM_GLOBAL ASM_PFX(InternalMemZeroMem)
- ASM_PFX(InternalMemZeroMem):
- pushq %rdi
- movq %rcx, %rdi
- xorq %rcx, %rcx
- xorl %eax, %eax
- subq %rdi, %rcx
- andq $15, %rcx
- movq %rdi, %r8
- jz L0
- cmpq %rdx, %rcx
- cmova %rdx, %rcx
- subq %rcx, %rdx
- rep stosb
- L0:
- movq %rdx, %rcx
- andl $15, %edx
- shrq $4, %rcx
- jz L_ZeroBytes
- pxor %xmm0, %xmm0
- L1:
- movntdq %xmm0, (%rdi) # rdi should be 16-byte aligned
- addq $16, %rdi
- loop L1
- mfence
- L_ZeroBytes:
- movl %edx, %ecx
- rep stosb
- movq %r8, %rax
- popq %rdi
- ret
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