ArmPkg/Library/CompilerIntrinsicsLib/Arm/ashldi3.S

   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 #include <AsmMacroIoLib.h>
  10
  11 ASM_FUNC(__ashldi3)
  12   cmp  r2, #31
  13   bls  L2
  14   cmp  r2, #63
  15   subls  r2, r2, #32
  16   movls  r2, r0, asl r2
  17   movhi  r2, #0
  18   mov  r1, r2
  19   mov  r0, #0
  20   bx  lr
  21 L2:
  22   cmp  r2, #0
  23   rsbne  r3, r2, #32
  24   movne  r3, r0, lsr r3
  25   movne  r0, r0, asl r2
  26   orrne  r1, r3, r1, asl r2
  27   bx  lr