diff options
Diffstat (limited to 'ArmPkg/Library/CompilerIntrinsicsLib/Arm/memcpy.asm')
-rw-r--r-- | ArmPkg/Library/CompilerIntrinsicsLib/Arm/memcpy.asm | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/ArmPkg/Library/CompilerIntrinsicsLib/Arm/memcpy.asm b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/memcpy.asm new file mode 100644 index 0000000000..60dbcf2ab5 --- /dev/null +++ b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/memcpy.asm @@ -0,0 +1,40 @@ +//------------------------------------------------------------------------------ +// +// 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 + |