ArmPkg/Library/CompilerIntrinsicsLib/Arm/muldi3.S

   1 #------------------------------------------------------------------------------
   2 #
   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.
  12 #
  13 #------------------------------------------------------------------------------
  14
  15 \s\s.text
  16 \s\s.align 2
  17 \s\sGCC_ASM_EXPORT(__muldi3)
  18
  19 ASM_PFX(__muldi3):
  20 \s\sstmfd\s\ssp!, {r4, r5, r6, r7, lr}
  21 \s\sadd\s\sr7, sp, #12
  22 \s\sstmfd\s\ssp!, {r8, r10, r11}
  23 \s\sldr\s\sr11, L4
  24 \s\smov\s\sr4, r0, lsr #16
  25 \s\sand\s\sr8, r0, r11
  26 \s\sand\s\sip, r2, r11
  27 \s\smul\s\slr, ip, r8
  28 \s\smul\s\sip, r4, ip
  29 \s\ssub\s\ssp, sp, #8
  30 \s\sadd\s\sr10, ip, lr, lsr #16
  31 \s\sand\s\sip, r10, r11
  32 \s\sand\s\slr, lr, r11
  33 \s\smov\s\sr6, r2, lsr #16
  34 \s\sstr\s\sr4, [sp, #4]
  35 \s\sadd\s\sr4, lr, ip, asl #16
  36 \s\smul\s\sip, r8, r6
  37 \s\smov\s\sr5, r10, lsr #16
  38 \s\sadd\s\sr10, ip, r4, lsr #16
  39 \s\sand\s\sip, r10, r11
  40 \s\sand\s\slr, r4, r11
  41 \s\sadd\s\sr4, lr, ip, asl #16
  42 \s\smul\s\sr0, r3, r0
  43 \s\sadd\s\sip, r5, r10, lsr #16
  44 \s\sldr\s\sr5, [sp, #4]
  45 \s\smla\s\sr0, r2, r1, r0
  46 \s\smla\s\sr5, r6, r5, ip
  47 \s\smov\s\sr10, r4
  48 \s\sadd\s\sr11, r0, r5
  49 \s\smov\s\sr1, r11
  50 \s\smov\s\sr0, r4
  51 \s\ssub\s\ssp, r7, #24
  52 \s\sldmfd\s\ssp!, {r8, r10, r11}
  53 \s\sldmfd\s\ssp!, {r4, r5, r6, r7, pc}
  54 \s\s.p2align 2
  55 L5:
  56 \s\s.align 2
  57 L4:
  58 \s\s.long\s\s65535