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review.shift-gmbh.com / SHIFTPHONES / kernel / common / dd76c302955de405ea589e36c574f6f10eca99b6 / . / arch / sh / lib / ashrsi3.S
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Kuninori Morimoto4494ce42018-12-28 00:32:28 -0800[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0+ WITH GCC-exception-2.0
2
3 Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
Paul Mundt1aad54a2008-11-18 17:33:48 +0900[diff] [blame]4 2004, 2005, 2006
5 Free Software Foundation, Inc.
Kuninori Morimoto4494ce42018-12-28 00:32:28 -0800[diff] [blame]6*/
Paul Mundt1aad54a2008-11-18 17:33:48 +0900[diff] [blame]7
8!! libgcc routines for the Renesas / SuperH SH CPUs.
9!! Contributed by Steve Chamberlain.
10!! sac@cygnus.com
11
12!! ashiftrt_r4_x, ___ashrsi3, ___ashlsi3, ___lshrsi3 routines
13!! recoded in assembly by Toshiyasu Morita
14!! tm@netcom.com
15
16/* SH2 optimizations for ___ashrsi3, ___ashlsi3, ___lshrsi3 and
17 ELF local label prefixes by J"orn Rennecke
18 amylaar@cygnus.com */
19
20!
21! __ashrsi3
22!
23! Entry:
24!
25! r4: Value to shift
26! r5: Shifts
27!
28! Exit:
29!
30! r0: Result
31!
32! Destroys:
33!
34! (none)
35!
Yoshinori Sato940d4112015-06-20 14:02:19 +0900[diff] [blame]36! __ashrsi3_r0
37!
38! Entry:
39!
40! r4: Value to shift
41! r0: Shifts
42!
43! Exit:
44!
45! r0: Result
46!
47! Destroys:
48!
49! (none)
Paul Mundt1aad54a2008-11-18 17:33:48 +0900[diff] [blame]50
51 .global __ashrsi3
Yoshinori Sato940d4112015-06-20 14:02:19 +0900[diff] [blame]52 .global __ashrsi3_r0
Paul Mundt1aad54a2008-11-18 17:33:48 +0900[diff] [blame]53
54 .align 2
55__ashrsi3:
Yoshinori Sato940d4112015-06-20 14:02:19 +0900[diff] [blame]56 mov r5,r0
57 .align 2
58__ashrsi3_r0:
59 and #31,r0
60 mov.l r4,@-r15
61 mov r0,r4
Paul Mundt1aad54a2008-11-18 17:33:48 +0900[diff] [blame]62 mova ashrsi3_table,r0
Yoshinori Sato940d4112015-06-20 14:02:19 +0900[diff] [blame]63 mov.b @(r0,r4),r4
64 add r4,r0
Paul Mundt1aad54a2008-11-18 17:33:48 +0900[diff] [blame]65 jmp @r0
Yoshinori Sato940d4112015-06-20 14:02:19 +0900[diff] [blame]66 mov.l @r15+,r0
Paul Mundt1aad54a2008-11-18 17:33:48 +0900[diff] [blame]67
68 .align 2
69ashrsi3_table:
70 .byte ashrsi3_0-ashrsi3_table
71 .byte ashrsi3_1-ashrsi3_table
72 .byte ashrsi3_2-ashrsi3_table
73 .byte ashrsi3_3-ashrsi3_table
74 .byte ashrsi3_4-ashrsi3_table
75 .byte ashrsi3_5-ashrsi3_table
76 .byte ashrsi3_6-ashrsi3_table
77 .byte ashrsi3_7-ashrsi3_table
78 .byte ashrsi3_8-ashrsi3_table
79 .byte ashrsi3_9-ashrsi3_table
80 .byte ashrsi3_10-ashrsi3_table
81 .byte ashrsi3_11-ashrsi3_table
82 .byte ashrsi3_12-ashrsi3_table
83 .byte ashrsi3_13-ashrsi3_table
84 .byte ashrsi3_14-ashrsi3_table
85 .byte ashrsi3_15-ashrsi3_table
86 .byte ashrsi3_16-ashrsi3_table
87 .byte ashrsi3_17-ashrsi3_table
88 .byte ashrsi3_18-ashrsi3_table
89 .byte ashrsi3_19-ashrsi3_table
90 .byte ashrsi3_20-ashrsi3_table
91 .byte ashrsi3_21-ashrsi3_table
92 .byte ashrsi3_22-ashrsi3_table
93 .byte ashrsi3_23-ashrsi3_table
94 .byte ashrsi3_24-ashrsi3_table
95 .byte ashrsi3_25-ashrsi3_table
96 .byte ashrsi3_26-ashrsi3_table
97 .byte ashrsi3_27-ashrsi3_table
98 .byte ashrsi3_28-ashrsi3_table
99 .byte ashrsi3_29-ashrsi3_table
100 .byte ashrsi3_30-ashrsi3_table
101 .byte ashrsi3_31-ashrsi3_table
102
103ashrsi3_31:
104 rotcl r0
105 rts
106 subc r0,r0
107
108ashrsi3_30:
109 shar r0
110ashrsi3_29:
111 shar r0
112ashrsi3_28:
113 shar r0
114ashrsi3_27:
115 shar r0
116ashrsi3_26:
117 shar r0
118ashrsi3_25:
119 shar r0
120ashrsi3_24:
121 shlr16 r0
122 shlr8 r0
123 rts
124 exts.b r0,r0
125
126ashrsi3_23:
127 shar r0
128ashrsi3_22:
129 shar r0
130ashrsi3_21:
131 shar r0
132ashrsi3_20:
133 shar r0
134ashrsi3_19:
135 shar r0
136ashrsi3_18:
137 shar r0
138ashrsi3_17:
139 shar r0
140ashrsi3_16:
141 shlr16 r0
142 rts
143 exts.w r0,r0
144
145ashrsi3_15:
146 shar r0
147ashrsi3_14:
148 shar r0
149ashrsi3_13:
150 shar r0
151ashrsi3_12:
152 shar r0
153ashrsi3_11:
154 shar r0
155ashrsi3_10:
156 shar r0
157ashrsi3_9:
158 shar r0
159ashrsi3_8:
160 shar r0
161ashrsi3_7:
162 shar r0
163ashrsi3_6:
164 shar r0
165ashrsi3_5:
166 shar r0
167ashrsi3_4:
168 shar r0
169ashrsi3_3:
170 shar r0
171ashrsi3_2:
172 shar r0
173ashrsi3_1:
174 rts
175 shar r0
176
177ashrsi3_0:
178 rts
179 nop