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

41 lines
1.0 KiB
NASM

//------------------------------------------------------------------------------
//
// 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.
//
//------------------------------------------------------------------------------
EXPORT __aeabi_memcpy
AREA Memcpy, CODE, READONLY
;
;VOID
;EFIAPI
;__aeabi_memcpy (
; IN VOID *Destination,
; IN VOID *Source,
; IN UINT32 Size
; );
;
__aeabi_memcpy
CMP r2, #0
BXEQ r14
loop
LDRB r3, [r1], #1
STRB r3, [r0], #1
SUBS r2, r2, #1
BXEQ r14
B loop
END