# # ConvertAsm.py: Automatically generated from ZeroMem.asm # #------------------------------------------------------------------------------ # # Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.
# 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