ArmPkg/Library/CompilerIntrinsicsLib/Arm/ashldi3.S

   1 #------------------------------------------------------------------------------
   2 #
   3 # Copyright (c) 2008-2009 Apple Inc. All rights reserved.
   4 #
   5 # All rights reserved. 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
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  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.
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  13 #------------------------------------------------------------------------------
  14
  15         .text
  16         .align 2
  17         .globl ___ashldi3
  18 ___ashldi3:
  19         @ args = 0, pretend = 0, frame = 0
  20         @ frame_needed = 0, uses_anonymous_args = 0
  21         @ link register save eliminated.
  22         cmp     r2, #31
  23         @ lr needed for prologue
  24         bls     L2
  25         cmp     r2, #63
  26         subls   r2, r2, #32
  27         movls   r2, r0, asl r2
  28         movhi   r2, #0
  29         mov     r1, r2
  30         mov     r0, #0
  31         bx      lr
  32 L2:
  33         cmp     r2, #0
  34         rsbne   r3, r2, #32
  35         movne   r3, r0, lsr r3
  36         movne   r0, r0, asl r2
  37         orrne   r1, r3, r1, asl r2
  38         bx      lr