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

60 lines
1.4 KiB
NASM
Executable File

//------------------------------------------------------------------------------
//
// 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.
//
//------------------------------------------------------------------------------
EXPORT __aeabi_memset
EXPORT __aeabi_memclr
EXPORT __aeabi_memclr4
AREA Memset, CODE, READONLY
;
;VOID
;EFIAPI
;__aeabi_memset (
; IN VOID *Destination,
; IN UINT32 Character,
; IN UINT32 Size
; );
;
__aeabi_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}
__aeabi_memclr
mov r2, r1
mov r1, #0
b __aeabi_memset
__aeabi_memclr4
mov r2, r1
mov r1, #0
b __aeabi_memset
END