ArmPkg/Library/CompilerIntrinsicsLib/Arm/udivsi3.S

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   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.
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  13 #------------------------------------------------------------------------------
  14
  15 \s\s.text
  16 \s\s.align 2
  17 \s\sGCC_ASM_EXPORT(__udivsi3)
  18
  19 ASM_PFX(__udivsi3):
  20 \s\scmp\s\sr1, #0
  21 \s\scmpne\s\sr0, #0
  22 \s\sstmfd\s\ssp!, {r4, r5, r7, lr}
  23 \s\sadd\s\sr7, sp, #8
  24 \s\sbeq\s\sL2
  25 \s\sclz\s\sr2, r1
  26 \s\sclz\s\sr3, r0
  27 \s\srsb\s\sr3, r3, r2
  28 \s\scmp\s\sr3, #31
  29 \s\sbhi\s\sL2
  30 \s\sldmeqfd\s\ssp!, {r4, r5, r7, pc}
  31 \s\sadd\s\sr5, r3, #1
  32 \s\srsb\s\sr3, r3, #31
  33 \s\smov\s\slr, #0
  34 \s\smov\s\sr2, r0, asl r3
  35 \s\smov\s\sip, r0, lsr r5
  36 \s\smov\s\sr4, lr
  37 \s\sb\s\sL8
  38 L9:
  39 \s\smov\s\sr0, r2, lsr #31
  40 \s\sorr\s\sip, r0, ip, asl #1
  41 \s\sorr\s\sr2, r3, lr
  42 \s\srsb\s\sr3, ip, r1
  43 \s\ssub\s\sr3, r3, #1
  44 \s\sand\s\sr0, r1, r3, asr #31
  45 \s\smov\s\slr, r3, lsr #31
  46 \s\srsb\s\sip, r0, ip
  47 \s\sadd\s\sr4, r4, #1
  48 L8:
  49 \s\scmp\s\sr4, r5
  50 \s\smov\s\sr3, r2, asl #1
  51 \s\sbne\s\sL9
  52 \s\sorr\s\sr0, r3, lr
  53 \s\sldmfd\s\ssp!, {r4, r5, r7, pc}
  54 L2:
  55 \s\smov\s\sr0, #0
  56 \s\sldmfd\s\ssp!, {r4, r5, r7, pc}
  57