ArmPkg: Replace BSD License with BSD+Patent License

[mirror_edk2.git] / ArmPkg / Library / CompilerIntrinsicsLib / Arm / mullu.asm

//------------------------------------------------------------------------------\r
//\r
// Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>\r
//\r
// SPDX-License-Identifier: BSD-2-Clause-Patent\r
//\r
//------------------------------------------------------------------------------\r
\r
\r
  EXPORT  __ARM_ll_mullu\r
  EXPORT  __aeabi_lmul\r
\r
  AREA  Math, CODE, READONLY\r
\r
;\r
;INT64\r
;EFIAPI\r
;__aeabi_lmul (\r
;  IN INT64   Multiplicand\r
;  IN INT32   Multiplier\r
;  );\r
;\r
__ARM_ll_mullu\r
  mov     r3, #0\r
// Make upper part of INT64 Multiplier 0 and use __aeabi_lmul\r
\r
;\r
;INT64\r
;EFIAPI\r
;__aeabi_lmul (\r
;  IN INT64   Multiplicand\r
;  IN INT64   Multiplier\r
;  );\r
;\r
__aeabi_lmul\r
  stmdb   sp!, {lr}\r
  mov     lr, r0\r
  umull   r0, ip, r2, lr\r
  mla     r1, r2, r1, ip\r
  mla     r1, r3, lr, r1\r
  ldmia   sp!, {pc}\r
\r
  END\r