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gerrit-public.fairphone.software / kernel / msm-4.9 / f7af3d1c03136275b876f58644599b120cf4ffdd / . / arch / sh / lib / lshrsi3.S
blob: f2a6959f526d30bcda3c7ed0b0eab2d7975aa2b1 [file] [log] [blame]
Paul Mundt1aad54a2008-11-18 17:33:48 +0900[diff] [blame]1/* Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
2 2004, 2005, 2006
3 Free Software Foundation, Inc.
4
5This file is free software; you can redistribute it and/or modify it
6under the terms of the GNU General Public License as published by the
7Free Software Foundation; either version 2, or (at your option) any
8later version.
9
10In addition to the permissions in the GNU General Public License, the
11Free Software Foundation gives you unlimited permission to link the
12compiled version of this file into combinations with other programs,
13and to distribute those combinations without any restriction coming
14from the use of this file. (The General Public License restrictions
15do apply in other respects; for example, they cover modification of
16the file, and distribution when not linked into a combine
17executable.)
18
19This file is distributed in the hope that it will be useful, but
20WITHOUT ANY WARRANTY; without even the implied warranty of
21MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22General Public License for more details.
23
24You should have received a copy of the GNU General Public License
25along with this program; see the file COPYING. If not, write to
26the Free Software Foundation, 51 Franklin Street, Fifth Floor,
27Boston, MA 02110-1301, USA. */
28
29!! libgcc routines for the Renesas / SuperH SH CPUs.
30!! Contributed by Steve Chamberlain.
31!! sac@cygnus.com
32
33!! ashiftrt_r4_x, ___ashrsi3, ___ashlsi3, ___lshrsi3 routines
34!! recoded in assembly by Toshiyasu Morita
35!! tm@netcom.com
36
37/* SH2 optimizations for ___ashrsi3, ___ashlsi3, ___lshrsi3 and
38 ELF local label prefixes by J"orn Rennecke
39 amylaar@cygnus.com */
40
41!
42! __lshrsi3
43!
44! Entry:
45!
46! r4: Value to shift
47! r5: Shifts
48!
49! Exit:
50!
51! r0: Result
52!
53! Destroys:
54!
55! (none)
56!
Yoshinori Sato940d4112015-06-20 14:02:19 +0900[diff] [blame]57! __lshrsi3_r0
58!
59! Entry:
60!
61! r0: Value to shift
62! r5: Shifts
63!
64! Exit:
65!
66! r0: Result
67!
68! Destroys:
69!
70! (none)
71!
Paul Mundt1aad54a2008-11-18 17:33:48 +0900[diff] [blame]72 .global __lshrsi3
Yoshinori Sato940d4112015-06-20 14:02:19 +0900[diff] [blame]73 .global __lshrsi3_r0
Paul Mundt1aad54a2008-11-18 17:33:48 +0900[diff] [blame]74
75 .align 2
76__lshrsi3:
Yoshinori Sato940d4112015-06-20 14:02:19 +0900[diff] [blame]77 mov r5,r0
78 .align 2
79__lshrsi3_r0:
80 and #31,r0
81 mov.l r4,@-r15
82 mov r0,r4
Paul Mundt1aad54a2008-11-18 17:33:48 +0900[diff] [blame]83 mova lshrsi3_table,r0
Yoshinori Sato940d4112015-06-20 14:02:19 +0900[diff] [blame]84 mov.b @(r0,r4),r4
85 add r4,r0
Paul Mundt1aad54a2008-11-18 17:33:48 +0900[diff] [blame]86 jmp @r0
Yoshinori Sato940d4112015-06-20 14:02:19 +0900[diff] [blame]87 mov.l @r15+,r0
Paul Mundt1aad54a2008-11-18 17:33:48 +0900[diff] [blame]88
89 .align 2
90lshrsi3_table:
91 .byte lshrsi3_0-lshrsi3_table
92 .byte lshrsi3_1-lshrsi3_table
93 .byte lshrsi3_2-lshrsi3_table
94 .byte lshrsi3_3-lshrsi3_table
95 .byte lshrsi3_4-lshrsi3_table
96 .byte lshrsi3_5-lshrsi3_table
97 .byte lshrsi3_6-lshrsi3_table
98 .byte lshrsi3_7-lshrsi3_table
99 .byte lshrsi3_8-lshrsi3_table
100 .byte lshrsi3_9-lshrsi3_table
101 .byte lshrsi3_10-lshrsi3_table
102 .byte lshrsi3_11-lshrsi3_table
103 .byte lshrsi3_12-lshrsi3_table
104 .byte lshrsi3_13-lshrsi3_table
105 .byte lshrsi3_14-lshrsi3_table
106 .byte lshrsi3_15-lshrsi3_table
107 .byte lshrsi3_16-lshrsi3_table
108 .byte lshrsi3_17-lshrsi3_table
109 .byte lshrsi3_18-lshrsi3_table
110 .byte lshrsi3_19-lshrsi3_table
111 .byte lshrsi3_20-lshrsi3_table
112 .byte lshrsi3_21-lshrsi3_table
113 .byte lshrsi3_22-lshrsi3_table
114 .byte lshrsi3_23-lshrsi3_table
115 .byte lshrsi3_24-lshrsi3_table
116 .byte lshrsi3_25-lshrsi3_table
117 .byte lshrsi3_26-lshrsi3_table
118 .byte lshrsi3_27-lshrsi3_table
119 .byte lshrsi3_28-lshrsi3_table
120 .byte lshrsi3_29-lshrsi3_table
121 .byte lshrsi3_30-lshrsi3_table
122 .byte lshrsi3_31-lshrsi3_table
123
124lshrsi3_6:
125 shlr2 r0
126lshrsi3_4:
127 shlr2 r0
128lshrsi3_2:
129 rts
130 shlr2 r0
131
132lshrsi3_7:
133 shlr2 r0
134lshrsi3_5:
135 shlr2 r0
136lshrsi3_3:
137 shlr2 r0
138lshrsi3_1:
139 rts
140 shlr r0
141
142lshrsi3_14:
143 shlr2 r0
144lshrsi3_12:
145 shlr2 r0
146lshrsi3_10:
147 shlr2 r0
148lshrsi3_8:
149 rts
150 shlr8 r0
151
152lshrsi3_15:
153 shlr2 r0
154lshrsi3_13:
155 shlr2 r0
156lshrsi3_11:
157 shlr2 r0
158lshrsi3_9:
159 shlr8 r0
160 rts
161 shlr r0
162
163lshrsi3_22:
164 shlr2 r0
165lshrsi3_20:
166 shlr2 r0
167lshrsi3_18:
168 shlr2 r0
169lshrsi3_16:
170 rts
171 shlr16 r0
172
173lshrsi3_23:
174 shlr2 r0
175lshrsi3_21:
176 shlr2 r0
177lshrsi3_19:
178 shlr2 r0
179lshrsi3_17:
180 shlr16 r0
181 rts
182 shlr r0
183
184lshrsi3_30:
185 shlr2 r0
186lshrsi3_28:
187 shlr2 r0
188lshrsi3_26:
189 shlr2 r0
190lshrsi3_24:
191 shlr16 r0
192 rts
193 shlr8 r0
194
195lshrsi3_31:
196 shlr2 r0
197lshrsi3_29:
198 shlr2 r0
199lshrsi3_27:
200 shlr2 r0
201lshrsi3_25:
202 shlr16 r0
203 shlr8 r0
204 rts
205 shlr r0
206
207lshrsi3_0:
208 rts
209 nop