audk/ArmPkg/Library/CompilerIntrinsicsLib/Arm/mullu.asm

//------------------------------------------------------------------------------
//
// 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.
//
//------------------------------------------------------------------------------


  EXPORT  __ARM_ll_mullu
  EXPORT  __aeabi_lmul

  AREA  Math, CODE, READONLY

;
;INT64
;EFIAPI
;__aeabi_lmul (
;  IN INT64   Multiplicand
;  IN INT32   Multiplier
;  );
;
__ARM_ll_mullu
  mov     r3, #0
// Make upper part of INT64 Multiplier 0 and use __aeabi_lmul

;
;INT64
;EFIAPI
;__aeabi_lmul (
;  IN INT64   Multiplicand
;  IN INT64   Multiplier
;  );
;
__aeabi_lmul
  stmdb   sp!, {lr}
  mov     lr, r0
  umull   r0, ip, r2, lr
  mla     r1, r2, r1, ip
  mla     r1, r3, lr, r1
  ldmia   sp!, {pc}

  END