ArmPkg/Library/CompilerIntrinsicsLib/Arm/llsl.asm

   1 //------------------------------------------------------------------------------
   2 //
   3 // Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
   4 //
   5 // SPDX-License-Identifier: BSD-2-Clause-Patent
   6 //
   7 //------------------------------------------------------------------------------
   8
   9
  10
  11     INCLUDE AsmMacroExport.inc
  12
  13 ;
  14 ;VOID
  15 ;EFIAPI
  16 ;__aeabi_llsl (
  17 ; IN  VOID    *Destination,
  18 ; IN  VOID    *Source,
  19 ; IN  UINT32  Size
  20 ; );
  21 ;
  22
  23  RVCT_ASM_EXPORT __aeabi_llsl
  24     SUBS     r3,r2,#0x20
  25     BPL      {pc} + 0x18  ; 0x1c
  26     RSB      r3,r2,#0x20
  27     LSL      r1,r1,r2
  28     ORR      r1,r1,r0,LSR r3
  29     LSL      r0,r0,r2
  30     BX       lr
  31     LSL      r1,r0,r3
  32     MOV      r0,#0
  33     BX       lr
  34
  35     END
  36