ArmPkg/Library/CompilerIntrinsicsLib/Arm/moddi3.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(__moddi3)
  12   stmfd  sp!, {r4, r5, r7, lr}
  13   mov  r4, r1, asr #31
  14   add  r7, sp, #8
  15   stmfd  sp!, {r10, r11}
  16   mov  r10, r3, asr #31
  17   sub  sp, sp, #16
  18   mov  r5, r4
  19   mov  r11, r10
  20   eor  r0, r0, r4
  21   eor  r1, r1, r4
  22   eor  r2, r2, r10
  23   eor  r3, r3, r10
  24   add  ip, sp, #8
  25   subs  r0, r0, r4
  26   sbc  r1, r1, r5
  27   subs  r2, r2, r10
  28   sbc  r3, r3, r11
  29   str  ip, [sp, #0]
  30   bl  ASM_PFX(__udivmoddi4)
  31   ldrd  r0, [sp, #8]
  32   eor  r0, r0, r4
  33   eor  r1, r1, r4
  34   subs  r0, r0, r4
  35   sbc  r1, r1, r5
  36   sub  sp, r7, #16
  37   ldmfd  sp!, {r10, r11}
  38   ldmfd  sp!, {r4, r5, r7, pc}