Michael D Kinney 4059386c70 ArmPkg: Replace BSD License with BSD+Patent License
https://bugzilla.tianocore.org/show_bug.cgi?id=1373

Replace BSD 2-Clause License with BSD+Patent License.  This change is
based on the following emails:

  https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html
  https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html

RFCs with detailed process for the license change:

  V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html
  V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html
  V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
2019-04-09 09:10:21 -07:00

51 lines
1.1 KiB
ArmAsm

//------------------------------------------------------------------------------
//
// Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
//
// SPDX-License-Identifier: BSD-2-Clause-Patent
//
//------------------------------------------------------------------------------
#include <AsmMacroIoLib.h>
//
// A pair of (unsigned) long longs is returned in {{r0, r1}, {r2, r3}},
// the quotient in {r0, r1}, and the remainder in {r2, r3}.
//
//__value_in_regs lldiv_t
//EFIAPI
//__aeabi_ldivmod (
// IN UINT64 Dividen
// IN UINT64 Divisor
// )//
//
ASM_FUNC(__aeabi_ldivmod)
push {r4,lr}
asrs r4,r1,#1
eor r4,r4,r3,LSR #1
bpl L_Test1
rsbs r0,r0,#0
rsc r1,r1,#0
L_Test1:
tst r3,r3
bpl L_Test2
rsbs r2,r2,#0
rsc r3,r3,#0
L_Test2:
bl ASM_PFX(__aeabi_uldivmod)
tst r4,#0x40000000
beq L_Test3
rsbs r0,r0,#0
rsc r1,r1,#0
L_Test3:
tst r4,#0x80000000
beq L_Exit
rsbs r2,r2,#0
rsc r3,r3,#0
L_Exit:
pop {r4,pc}