ArmPkg/Library/CompilerIntrinsicsLib/Arm/divsi3.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(__divsi3)
  12   eor  r3, r0, r0, asr #31
  13   eor  r2, r1, r1, asr #31
  14   stmfd  sp!, {r4, r5, r7, lr}
  15   mov  r5, r0, asr #31
  16   add  r7, sp, #8
  17   mov  r4, r1, asr #31
  18   sub  r0, r3, r0, asr #31
  19   sub  r1, r2, r1, asr #31
  20   bl  ASM_PFX(__udivsi3)
  21   eor  r1, r5, r4
  22   eor  r0, r0, r1
  23   rsb  r0, r1, r0
  24   ldmfd  sp!, {r4, r5, r7, pc}