ArmPkg/Library/CompilerIntrinsicsLib/Arm/ashrdi3.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(__ashrdi3)
  12   cmp  r2, #31
  13   bls  L2
  14   cmp  r2, #63
  15   subls  r2, r2, #32
  16   mov  ip, r1, asr #31
  17   movls  r2, r1, asr r2
  18   movhi  r2, ip
  19   mov  r0, r2
  20   mov  r1, ip
  21   bx  lr
  22 L2:
  23   cmp  r2, #0
  24   rsbne  r3, r2, #32
  25   movne  r3, r1, asl r3
  26   movne  r1, r1, asr r2
  27   orrne  r0, r3, r0, lsr r2
  28   bx  lr