xref: /linux/arch/hexagon/lib/udivsi3.S (revision 8ca4fc323d2e4ab9dabbdd57633af40b0c7e6af9) 
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (c) 2021, The Linux Foundation. All rights reserved.
4 */
5
6#include <linux/linkage.h>
7
8SYM_FUNC_START(__hexagon_udivsi3)
9        {
10                r2 = cl0(r0)
11                r3 = cl0(r1)
12                r5:4 = combine(#1,#0)
13                p0 = cmp.gtu(r1,r0)
14        }
15        {
16                r6 = sub(r3,r2)
17                r4 = r1
18                r1:0 = combine(r0,r4)
19                if (p0) jumpr r31
20        }
21        {
22                r3:2 = vlslw(r5:4,r6)
23                loop0(1f,r6)
24        }
25        .falign
261:
27        {
28                p0 = cmp.gtu(r2,r1)
29                if (!p0.new) r1 = sub(r1,r2)
30                if (!p0.new) r0 = add(r0,r3)
31                r3:2 = vlsrw(r3:2,#1)
32        }:endloop0
33        {
34                p0 = cmp.gtu(r2,r1)
35                if (!p0.new) r0 = add(r0,r3)
36                jumpr r31
37        }
38SYM_FUNC_END(__hexagon_udivsi3)
39