[mirror_edk2.git] / MdePkg / Library / BaseMemoryLibMmx / X64 / SetMem32.S

#
# ConvertAsm.py: Automatically generated from SetMem32.asm
#
#------------------------------------------------------------------------------
#
# Copyright (c) 2006, 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:
#
#   SetMem32.S
#
# Abstract:
#
#   SetMem32 function
#
# Notes:
#
#------------------------------------------------------------------------------


#------------------------------------------------------------------------------
#  VOID *
#  EFIAPI
#  InternalMemSetMem32 (
#    IN VOID   *Buffer,
#    IN UINTN  Count,
#    IN UINT32 Value
#    );
#------------------------------------------------------------------------------
.intel_syntax noprefix
.globl ASM_PFX(InternalMemSetMem32)
ASM_PFX(InternalMemSetMem32):
    movq    mm0, r8                     # mm0 <- Value
    mov     rax, rcx                    # rax <- Buffer
    xchg    rcx, rdx                    # rcx <- Count  rdx <- Buffer
    shr     rcx, 1                      # rcx <- # of qwords to set
    jz      L_SetDwords
    pshufw  mm0, mm0, 0x44
L0:
    movntq  [rdx], mm0
    lea     rdx, [rdx + 8]              # use "lea" to avoid flag changes
    loop    L0
    mfence
L_SetDwords:
    jnc     L1
    movd    [rdx], mm0
L1:
    ret
Commit	Line	Data
4df876ad	1	#
	2	# ConvertAsm.py: Automatically generated from SetMem32.asm
	3	#
	4	#------------------------------------------------------------------------------
	5	#
	6	# Copyright (c) 2006, Intel Corporation
	7	# All rights reserved. This program and the accompanying materials
	8	# are licensed and made available under the terms and conditions of the BSD License
	9	# which accompanies this distribution. The full text of the license may be found at
	10	# http://opensource.org/licenses/bsd-license.php
	11	#
	12	# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
	13	# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
	14	#
	15	# Module Name:
	16	#
	17	# SetMem32.S
	18	#
	19	# Abstract:
	20	#
	21	# SetMem32 function
	22	#
	23	# Notes:
	24	#
	25	#------------------------------------------------------------------------------
	26
	27
	28	#------------------------------------------------------------------------------
	29	# VOID *
	30	# EFIAPI
	31	# InternalMemSetMem32 (
	32	# IN VOID *Buffer,
	33	# IN UINTN Count,
	34	# IN UINT32 Value
	35	# );
	36	#------------------------------------------------------------------------------
	37	.intel_syntax noprefix
	38	.globl ASM_PFX(InternalMemSetMem32)
	39	ASM_PFX(InternalMemSetMem32):
	40	movq mm0, r8 # mm0 <- Value
	41	mov rax, rcx # rax <- Buffer
	42	xchg rcx, rdx # rcx <- Count rdx <- Buffer
	43	shr rcx, 1 # rcx <- # of qwords to set
	44	jz L_SetDwords
	45	pshufw mm0, mm0, 0x44
	46	L0:
	47	movntq [rdx], mm0
	48	lea rdx, [rdx + 8] # use "lea" to avoid flag changes
	49	loop L0
	50	mfence
	51	L_SetDwords:
	52	jnc L1
	53	movd [rdx], mm0
	54	L1:
	55	ret
	56