ArmPkg/Library/CompilerIntrinsicsLib/Arm/divsi3.S

#------------------------------------------------------------------------------
#
# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution.  The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php
#
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
#------------------------------------------------------------------------------

#include <AsmMacroIoLib.h>

ASM_FUNC(__divsi3)
  eor  r3, r0, r0, asr #31
  eor  r2, r1, r1, asr #31
  stmfd  sp!, {r4, r5, r7, lr}
  mov  r5, r0, asr #31
  add  r7, sp, #8
  mov  r4, r1, asr #31
  sub  r0, r3, r0, asr #31
  sub  r1, r2, r1, asr #31
  bl  ASM_PFX(__udivsi3)
  eor  r1, r5, r4
  eor  r0, r0, r1
  rsb  r0, r1, r0
  ldmfd  sp!, {r4, r5, r7, pc}