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git01.mediatek.com / filogic / uboot / a9c87ba52c16917f8f41d8db9717e97acaa7d75a / . / arch / sh / lib / lshrsi3.S
blob: d6fb7d48c1e440cdb55d9b2bb9d824fbf9e96fb7 [file] [log] [blame]
Tom Rini10e47792018-05-06 17:58:06 -0400[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0+ */
Phil Edworthy8e5ab4b2011-06-02 22:15:27 +0000[diff] [blame]2/* Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
3 2004, 2005, 2006
4 Free Software Foundation, Inc.
Wolfgang Denkd79de1d2013-07-08 09:37:19 +0200[diff] [blame]5 */
Phil Edworthy8e5ab4b2011-06-02 22:15:27 +0000[diff] [blame]6
7!! libgcc routines for the Renesas / SuperH SH CPUs.
8!! Contributed by Steve Chamberlain.
9!! sac@cygnus.com
10
11!! ashiftrt_r4_x, ___ashrsi3, ___ashlsi3, ___lshrsi3 routines
12!! recoded in assembly by Toshiyasu Morita
13!! tm@netcom.com
14
15/* SH2 optimizations for ___ashrsi3, ___ashlsi3, ___lshrsi3 and
16 ELF local label prefixes by J"orn Rennecke
17 amylaar@cygnus.com */
18
19!
20! __lshrsi3)
21!
22! Entry:
23!
24! r4: Value to shift
25! r5: Shifts
26!
27! Exit:
28!
29! r0: Result
30!
31! Destroys:
32!
33! (none)
34!
35 .global __lshrsi3
36 .align 2
37__lshrsi3:
38 mov #31,r0
39 and r0,r5
40 mova __lshrsi3_table,r0
41 mov.b @(r0,r5),r5
42#ifdef __sh1__
43 add r5,r0
44 jmp @r0
45#else
46 braf r5
47#endif
48 mov r4,r0
49
50 .align 2
51__lshrsi3_table:
52 .byte __lshrsi3_0-__lshrsi3_table
53 .byte __lshrsi3_1-__lshrsi3_table
54 .byte __lshrsi3_2-__lshrsi3_table
55 .byte __lshrsi3_3-__lshrsi3_table
56 .byte __lshrsi3_4-__lshrsi3_table
57 .byte __lshrsi3_5-__lshrsi3_table
58 .byte __lshrsi3_6-__lshrsi3_table
59 .byte __lshrsi3_7-__lshrsi3_table
60 .byte __lshrsi3_8-__lshrsi3_table
61 .byte __lshrsi3_9-__lshrsi3_table
62 .byte __lshrsi3_10-__lshrsi3_table
63 .byte __lshrsi3_11-__lshrsi3_table
64 .byte __lshrsi3_12-__lshrsi3_table
65 .byte __lshrsi3_13-__lshrsi3_table
66 .byte __lshrsi3_14-__lshrsi3_table
67 .byte __lshrsi3_15-__lshrsi3_table
68 .byte __lshrsi3_16-__lshrsi3_table
69 .byte __lshrsi3_17-__lshrsi3_table
70 .byte __lshrsi3_18-__lshrsi3_table
71 .byte __lshrsi3_19-__lshrsi3_table
72 .byte __lshrsi3_20-__lshrsi3_table
73 .byte __lshrsi3_21-__lshrsi3_table
74 .byte __lshrsi3_22-__lshrsi3_table
75 .byte __lshrsi3_23-__lshrsi3_table
76 .byte __lshrsi3_24-__lshrsi3_table
77 .byte __lshrsi3_25-__lshrsi3_table
78 .byte __lshrsi3_26-__lshrsi3_table
79 .byte __lshrsi3_27-__lshrsi3_table
80 .byte __lshrsi3_28-__lshrsi3_table
81 .byte __lshrsi3_29-__lshrsi3_table
82 .byte __lshrsi3_30-__lshrsi3_table
83 .byte __lshrsi3_31-__lshrsi3_table
84
85__lshrsi3_6:
86 shlr2 r0
87__lshrsi3_4:
88 shlr2 r0
89__lshrsi3_2:
90 rts
91 shlr2 r0
92
93__lshrsi3_7:
94 shlr2 r0
95__lshrsi3_5:
96 shlr2 r0
97__lshrsi3_3:
98 shlr2 r0
99__lshrsi3_1:
100 rts
101 shlr r0
102
103__lshrsi3_14:
104 shlr2 r0
105__lshrsi3_12:
106 shlr2 r0
107__lshrsi3_10:
108 shlr2 r0
109__lshrsi3_8:
110 rts
111 shlr8 r0
112
113__lshrsi3_15:
114 shlr2 r0
115__lshrsi3_13:
116 shlr2 r0
117__lshrsi3_11:
118 shlr2 r0
119__lshrsi3_9:
120 shlr8 r0
121 rts
122 shlr r0
123
124__lshrsi3_22:
125 shlr2 r0
126__lshrsi3_20:
127 shlr2 r0
128__lshrsi3_18:
129 shlr2 r0
130__lshrsi3_16:
131 rts
132 shlr16 r0
133
134__lshrsi3_23:
135 shlr2 r0
136__lshrsi3_21:
137 shlr2 r0
138__lshrsi3_19:
139 shlr2 r0
140__lshrsi3_17:
141 shlr16 r0
142 rts
143 shlr r0
144
145__lshrsi3_30:
146 shlr2 r0
147__lshrsi3_28:
148 shlr2 r0
149__lshrsi3_26:
150 shlr2 r0
151__lshrsi3_24:
152 shlr16 r0
153 rts
154 shlr8 r0
155
156__lshrsi3_31:
157 shlr2 r0
158__lshrsi3_29:
159 shlr2 r0
160__lshrsi3_27:
161 shlr2 r0
162__lshrsi3_25:
163 shlr16 r0
164 shlr8 r0
165 rts
166 shlr r0
167
168__lshrsi3_0:
169 rts
170 nop