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#
# ConvertAsm.py: Automatically generated from SetMem.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:
#
# SetMem.S
#
# Abstract:
#
# SetMem function
#
# Notes:
#
#------------------------------------------------------------------------------
#------------------------------------------------------------------------------
# VOID *
# EFIAPI
# InternalMemSetMem (
# IN VOID *Buffer,
# IN UINTN Count,
# IN UINT8 Value
# )
#------------------------------------------------------------------------------
ASM_GLOBAL ASM_PFX(InternalMemSetMem)
ASM_PFX(InternalMemSetMem):
pushq %rdi
movq %rcx, %rdi # rdi <- Buffer
movb %r8b, %al # al <- Value
movq %rdi, %r9 # r9 <- Buffer as return value
xorq %rcx, %rcx
subq %rdi, %rcx
andq $15, %rcx # rcx + rdi aligns on 16-byte boundary
jz L0
cmpq %rdx, %rcx
cmova %rdx, %rcx
subq %rcx, %rdx
rep stosb
L0:
movq %rdx, %rcx
andq $15, %rdx
shrq $4, %rcx
jz L_SetBytes
movb %al, %ah # ax <- Value repeats twice
movdqa %xmm0, 0x10(%rsp) # save xmm0
movd %eax, %xmm0 # xmm0[0..16] <- Value repeats twice
pshuflw $0, %xmm0, %xmm0 # xmm0[0..63] <- Value repeats 8 times
movlhps %xmm0, %xmm0 # xmm0 <- Value repeats 16 times
L1:
movntdq %xmm0, (%rdi) # rdi should be 16-byte aligned
add $16, %rdi
loop L1
mfence
movdqa 0x10(%rsp), %xmm0 # restore xmm0
L_SetBytes:
movl %edx, %ecx # high 32 bits of rcx are always zero
rep stosb
movq %r9, %rax # rax <- Return value
popq %rdi
ret
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