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

#------------------------------------------------------------------------------ 
#
# Copyright (c) 2008-2009 Apple Inc. All rights reserved.
#
# 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.
#
#------------------------------------------------------------------------------

	.text
	.align 2
	.globl ASM_PFX(memcpy)

ASM_PFX(memcpy):
	stmfd	sp!, {r7, lr}
	mov	ip, #0
	add	r7, sp, #0
	mov	lr, r0
	b	L4
L5:
	ldrb	r3, [r1], #1	@ zero_extendqisi2
	add	ip, ip, #1
	and	r3, r3, #255
	strb	r3, [lr], #1
L4:
	cmp	ip, r2
	bne	L5
	ldmfd	sp!, {r7, pc}