xref: /OK3568_Linux_fs/kernel/arch/hexagon/lib/udivsi3.S (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun/* SPDX-License-Identifier: GPL-2.0-only */
2*4882a593Smuzhiyun/*
3*4882a593Smuzhiyun * Copyright (c) 2021, The Linux Foundation. All rights reserved.
4*4882a593Smuzhiyun */
5*4882a593Smuzhiyun
6*4882a593Smuzhiyun#include <linux/linkage.h>
7*4882a593Smuzhiyun
8*4882a593SmuzhiyunSYM_FUNC_START(__hexagon_udivsi3)
9*4882a593Smuzhiyun        {
10*4882a593Smuzhiyun                r2 = cl0(r0)
11*4882a593Smuzhiyun                r3 = cl0(r1)
12*4882a593Smuzhiyun                r5:4 = combine(#1,#0)
13*4882a593Smuzhiyun                p0 = cmp.gtu(r1,r0)
14*4882a593Smuzhiyun        }
15*4882a593Smuzhiyun        {
16*4882a593Smuzhiyun                r6 = sub(r3,r2)
17*4882a593Smuzhiyun                r4 = r1
18*4882a593Smuzhiyun                r1:0 = combine(r0,r4)
19*4882a593Smuzhiyun                if (p0) jumpr r31
20*4882a593Smuzhiyun        }
21*4882a593Smuzhiyun        {
22*4882a593Smuzhiyun                r3:2 = vlslw(r5:4,r6)
23*4882a593Smuzhiyun                loop0(1f,r6)
24*4882a593Smuzhiyun        }
25*4882a593Smuzhiyun        .falign
26*4882a593Smuzhiyun1:
27*4882a593Smuzhiyun        {
28*4882a593Smuzhiyun                p0 = cmp.gtu(r2,r1)
29*4882a593Smuzhiyun                if (!p0.new) r1 = sub(r1,r2)
30*4882a593Smuzhiyun                if (!p0.new) r0 = add(r0,r3)
31*4882a593Smuzhiyun                r3:2 = vlsrw(r3:2,#1)
32*4882a593Smuzhiyun        }:endloop0
33*4882a593Smuzhiyun        {
34*4882a593Smuzhiyun                p0 = cmp.gtu(r2,r1)
35*4882a593Smuzhiyun                if (!p0.new) r0 = add(r0,r3)
36*4882a593Smuzhiyun                jumpr r31
37*4882a593Smuzhiyun        }
38*4882a593SmuzhiyunSYM_FUNC_END(__hexagon_udivsi3)
39