41 lines
858 B
ArmAsm
41 lines
858 B
ArmAsm
/*
|
|
* Copyright (C) 2016-2017 Free Software Foundation, Inc.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation, version 2.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#include <linux/linkage.h>
|
|
|
|
ENTRY(__udivdi3)
|
|
mv a2, a1
|
|
mv a1, a0
|
|
li a0, -1
|
|
beqz a2, .L5
|
|
li a3, 1
|
|
bgeu a2, a1, .L2
|
|
.L1:
|
|
blez a2, .L2
|
|
slli a2, a2, 1
|
|
slli a3, a3, 1
|
|
bgtu a1, a2, .L1
|
|
.L2:
|
|
li a0, 0
|
|
.L3:
|
|
bltu a1, a2, .L4
|
|
sub a1, a1, a2
|
|
or a0, a0, a3
|
|
.L4:
|
|
srli a3, a3, 1
|
|
srli a2, a2, 1
|
|
bnez a3, .L3
|
|
.L5:
|
|
ret
|
|
ENDPROC(__udivdi3)
|