ArmPkg/CompilerIntrinsicsLib: switch to ASM_FUNC() asm macro

[mirror_edk2.git] / ArmPkg / Library / CompilerIntrinsicsLib / Arm / udivsi3.S

#------------------------------------------------------------------------------\r
#\r
# Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
#\r
# This program and the accompanying materials\r
# are licensed and made available under the terms and conditions of the BSD License\r
# which accompanies this distribution.  The full text of the license may be found at\r
# http://opensource.org/licenses/bsd-license.php\r
#\r
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
#\r
#------------------------------------------------------------------------------\r
\r
#include <AsmMacroIoLib.h>\r
\r
  .syntax unified\r
\r
ASM_FUNC(__udivsi3)\r
  cmp  r1, #0\r
  cmpne  r0, #0\r
  stmfd  sp!, {r4, r5, r7, lr}\r
  add  r7, sp, #8\r
  beq  L2\r
  clz  r2, r1\r
  clz  r3, r0\r
  rsb  r3, r3, r2\r
  cmp  r3, #31\r
  bhi  L2\r
  ldmfdeq  sp!, {r4, r5, r7, pc}\r
  add  r5, r3, #1\r
  rsb  r3, r3, #31\r
  mov  lr, #0\r
  mov  r2, r0, asl r3\r
  mov  ip, r0, lsr r5\r
  mov  r4, lr\r
  b  L8\r
L9:\r
  mov  r0, r2, lsr #31\r
  orr  ip, r0, ip, asl #1\r
  orr  r2, r3, lr\r
  rsb  r3, ip, r1\r
  sub  r3, r3, #1\r
  and  r0, r1, r3, asr #31\r
  mov  lr, r3, lsr #31\r
  rsb  ip, r0, ip\r
  add  r4, r4, #1\r
L8:\r
  cmp  r4, r5\r
  mov  r3, r2, asl #1\r
  bne  L9\r
  orr  r0, r3, lr\r
  ldmfd  sp!, {r4, r5, r7, pc}\r
L2:\r
  mov  r0, #0\r
  ldmfd  sp!, {r4, r5, r7, pc}\r
\r