ArmPkg/Library/CompilerIntrinsicsLib/Arm/llsl.asm

   1 //------------------------------------------------------------------------------
   2 //
   3 // Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
   4 //
   5 // This program and the accompanying materials
   6 // are licensed and made available under the terms and conditions of the BSD License
   7 // which accompanies this distribution.  The full text of the license may be found at
   8 // http://opensource.org/licenses/bsd-license.php
   9 //
  10 // THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12 //
  13 //------------------------------------------------------------------------------
  14
  15
  16     EXPORT  __aeabi_llsl
  17
  18     AREA    Math, CODE, READONLY
  19
  20 ;
  21 ;VOID
  22 ;EFIAPI
  23 ;__aeabi_llsl (
  24 ; IN  VOID    *Destination,
  25 ; IN  VOID    *Source,
  26 ; IN  UINT32  Size
  27 ; );
  28 ;
  29
  30 __aeabi_llsl
  31     SUBS     r3,r2,#0x20
  32     BPL      {pc} + 0x18  ; 0x1c
  33     RSB      r3,r2,#0x20
  34     LSL      r1,r1,r2
  35     ORR      r1,r1,r0,LSR r3
  36     LSL      r0,r0,r2
  37     BX       lr
  38     LSL      r1,r0,r3
  39     MOV      r0,#0
  40     BX       lr
  41
  42     END
  43