audk/ArmPkg/Library/CompilerIntrinsicsLib/Arm/memset.S

39 lines
1.0 KiB
ArmAsm

#------------------------------------------------------------------------------
#
# Copyright (c) 2008 - 2009, Apple Inc. 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.
#
#------------------------------------------------------------------------------
.text
.align 2
GCC_ASM_EXPORT (memset)
ASM_PFX(memset):
@ args = 0, pretend = 0, frame = 0
@ frame_needed = 1, uses_anonymous_args = 0
stmfd sp!, {r7, lr}
mov ip, #0
add r7, sp, #0
mov lr, r0
b L9
L10:
and r3, r1, #255
add ip, ip, #1
strb r3, [lr], #1
L9:
cmp ip, r2
bne L10
ldmfd sp!, {r7, pc}