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

#\r
# ConvertAsm.py: Automatically generated from SetMem32.asm\r
#\r
#------------------------------------------------------------------------------\r
#\r
# Copyright (c) 2006 - 2008, Intel Corporation\r
# All rights reserved. This program and the accompanying materials\r
# are licensed and made available under the terms and conditions of the BSD License\r
# which accompanies this distribution.  The full text of the license may be found at\r
# http://opensource.org/licenses/bsd-license.php\r
#\r
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
#\r
# Module Name:\r
#\r
#   SetMem32.S\r
#\r
# Abstract:\r
#\r
#   SetMem32 function\r
#\r
# Notes:\r
#\r
#------------------------------------------------------------------------------\r
\r
\r
#------------------------------------------------------------------------------\r
#  VOID *\r
#  EFIAPI\r
#  InternalMemSetMem32 (\r
#    IN VOID   *Buffer,\r
#    IN UINTN  Count,\r
#    IN UINT32 Value\r
#    );\r
#------------------------------------------------------------------------------\r
.intel_syntax noprefix\r
.globl ASM_PFX(InternalMemSetMem32)\r
ASM_PFX(InternalMemSetMem32):\r
    movq    mm0, r8                     # mm0 <- Value\r
    mov     rax, rcx                    # rax <- Buffer\r
    xchg    rcx, rdx                    # rcx <- Count  rdx <- Buffer\r
    shr     rcx, 1                      # rcx <- # of qwords to set\r
    jz      L_SetDwords\r
    pshufw  mm0, mm0, 0x44\r
L0:\r
    movntq  [rdx], mm0\r
    lea     rdx, [rdx + 8]              # use "lea" to avoid flag changes\r
    loop    L0\r
    mfence\r
L_SetDwords:\r
    jnc     L1\r
    movd    [rdx], mm0\r
L1:\r
    ret\r
\r
Commit	Line	Data
b1ff428c	1	#\r
	2	# ConvertAsm.py: Automatically generated from SetMem32.asm\r
	3	#\r
	4	#------------------------------------------------------------------------------\r
	5	#\r
373ade0e	6	# Copyright (c) 2006 - 2008, Intel Corporation\r
b1ff428c	7	# All rights reserved. This program and the accompanying materials\r
	8	# are licensed and made available under the terms and conditions of the BSD License\r
	9	# which accompanies this distribution. The full text of the license may be found at\r
	10	# http://opensource.org/licenses/bsd-license.php\r
	11	#\r
	12	# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	13	# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	14	#\r
	15	# Module Name:\r
	16	#\r
	17	# SetMem32.S\r
	18	#\r
	19	# Abstract:\r
	20	#\r
	21	# SetMem32 function\r
	22	#\r
	23	# Notes:\r
	24	#\r
	25	#------------------------------------------------------------------------------\r
	26	\r
	27	\r
	28	#------------------------------------------------------------------------------\r
	29	# VOID *\r
	30	# EFIAPI\r
	31	# InternalMemSetMem32 (\r
	32	# IN VOID *Buffer,\r
	33	# IN UINTN Count,\r
	34	# IN UINT32 Value\r
	35	# );\r
	36	#------------------------------------------------------------------------------\r
	37	.intel_syntax noprefix\r
	38	.globl ASM_PFX(InternalMemSetMem32)\r
	39	ASM_PFX(InternalMemSetMem32):\r
	40	movq mm0, r8 # mm0 <- Value\r
	41	mov rax, rcx # rax <- Buffer\r
	42	xchg rcx, rdx # rcx <- Count rdx <- Buffer\r
	43	shr rcx, 1 # rcx <- # of qwords to set\r
	44	jz L_SetDwords\r
	45	pshufw mm0, mm0, 0x44\r
	46	L0:\r
	47	movntq [rdx], mm0\r
	48	lea rdx, [rdx + 8] # use "lea" to avoid flag changes\r
	49	loop L0\r
	50	mfence\r
	51	L_SetDwords:\r
	52	jnc L1\r
	53	movd [rdx], mm0\r
	54	L1:\r
	55	ret\r
	56	\r