ArmPkg/CompilerIntrinsicesLib: Fixed memmove() and memset()

[mirror_edk2.git] / ArmPkg / Library / CompilerIntrinsicsLib / Arm / memset.asm

//------------------------------------------------------------------------------\r
//\r
// Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
// Copyright (c) 2014, ARM Ltd. All rights reserved.<BR>\r
//\r
// This program and the accompanying materials\r
// are licensed and made available under the terms and conditions of the BSD License\r
// which accompanies this distribution.  The full text of the license may be found at\r
// http://opensource.org/licenses/bsd-license.php\r
//\r
// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
//\r
//------------------------------------------------------------------------------\r
\r
\r
    EXPORT  __aeabi_memset\r
    EXPORT  __aeabi_memclr\r
    EXPORT  __aeabi_memclr4\r
\r
    AREA    Memset, CODE, READONLY\r
\r
; void __aeabi_memclr4(void *dest, size_t n);\r
; void __aeabi_memclr(void *dest, size_t n);\r
__aeabi_memclr\r
__aeabi_memclr4\r
  mov   r2, #0\r
\r
;\r
;VOID\r
;EFIAPI\r
;__aeabi_memset (\r
; IN  VOID    *Destination,\r
; IN  UINT32  Size,\r
; IN  UINT32  Character\r
; );\r
;\r
__aeabi_memset\r
  cmp  r1, #0\r
  bxeq lr\r
  ; args = 0, pretend = 0, frame = 0\r
  ; frame_needed = 1, uses_anonymous_args = 0\r
L10\r
  strb  r2, [r0], #1\r
  subs  r1, r1, #1\r
  ; While size is not 0\r
  bne  L10\r
  bx   lr\r
\r
  END\r