1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
|
/* SPDX-License-Identifier: GPL-2.0+ WITH GCC-exception-2.0
Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
2004, 2005, 2006
Free Software Foundation, Inc.
*/
!! libgcc routines for the Renesas / SuperH SH CPUs.
!! Contributed by Steve Chamberlain.
!! sac@cygnus.com
!! ashiftrt_r4_x, ___ashrsi3, ___ashlsi3, ___lshrsi3 routines
!! recoded in assembly by Toshiyasu Morita
!! tm@netcom.com
/* SH2 optimizations for ___ashrsi3, ___ashlsi3, ___lshrsi3 and
ELF local label prefixes by J"orn Rennecke
amylaar@cygnus.com */
!
! __lshrsi3
!
! Entry:
!
! r4: Value to shift
! r5: Shifts
!
! Exit:
!
! r0: Result
!
! Destroys:
!
! (none)
!
! __lshrsi3_r0
!
! Entry:
!
! r0: Value to shift
! r5: Shifts
!
! Exit:
!
! r0: Result
!
! Destroys:
!
! (none)
!
.global __lshrsi3
.global __lshrsi3_r0
.align 2
__lshrsi3:
mov r5,r0
.align 2
__lshrsi3_r0:
and #31,r0
mov.l r4,@-r15
mov r0,r4
mova lshrsi3_table,r0
mov.b @(r0,r4),r4
add r4,r0
jmp @r0
mov.l @r15+,r0
.align 2
lshrsi3_table:
.byte lshrsi3_0-lshrsi3_table
.byte lshrsi3_1-lshrsi3_table
.byte lshrsi3_2-lshrsi3_table
.byte lshrsi3_3-lshrsi3_table
.byte lshrsi3_4-lshrsi3_table
.byte lshrsi3_5-lshrsi3_table
.byte lshrsi3_6-lshrsi3_table
.byte lshrsi3_7-lshrsi3_table
.byte lshrsi3_8-lshrsi3_table
.byte lshrsi3_9-lshrsi3_table
.byte lshrsi3_10-lshrsi3_table
.byte lshrsi3_11-lshrsi3_table
.byte lshrsi3_12-lshrsi3_table
.byte lshrsi3_13-lshrsi3_table
.byte lshrsi3_14-lshrsi3_table
.byte lshrsi3_15-lshrsi3_table
.byte lshrsi3_16-lshrsi3_table
.byte lshrsi3_17-lshrsi3_table
.byte lshrsi3_18-lshrsi3_table
.byte lshrsi3_19-lshrsi3_table
.byte lshrsi3_20-lshrsi3_table
.byte lshrsi3_21-lshrsi3_table
.byte lshrsi3_22-lshrsi3_table
.byte lshrsi3_23-lshrsi3_table
.byte lshrsi3_24-lshrsi3_table
.byte lshrsi3_25-lshrsi3_table
.byte lshrsi3_26-lshrsi3_table
.byte lshrsi3_27-lshrsi3_table
.byte lshrsi3_28-lshrsi3_table
.byte lshrsi3_29-lshrsi3_table
.byte lshrsi3_30-lshrsi3_table
.byte lshrsi3_31-lshrsi3_table
lshrsi3_6:
shlr2 r0
lshrsi3_4:
shlr2 r0
lshrsi3_2:
rts
shlr2 r0
lshrsi3_7:
shlr2 r0
lshrsi3_5:
shlr2 r0
lshrsi3_3:
shlr2 r0
lshrsi3_1:
rts
shlr r0
lshrsi3_14:
shlr2 r0
lshrsi3_12:
shlr2 r0
lshrsi3_10:
shlr2 r0
lshrsi3_8:
rts
shlr8 r0
lshrsi3_15:
shlr2 r0
lshrsi3_13:
shlr2 r0
lshrsi3_11:
shlr2 r0
lshrsi3_9:
shlr8 r0
rts
shlr r0
lshrsi3_22:
shlr2 r0
lshrsi3_20:
shlr2 r0
lshrsi3_18:
shlr2 r0
lshrsi3_16:
rts
shlr16 r0
lshrsi3_23:
shlr2 r0
lshrsi3_21:
shlr2 r0
lshrsi3_19:
shlr2 r0
lshrsi3_17:
shlr16 r0
rts
shlr r0
lshrsi3_30:
shlr2 r0
lshrsi3_28:
shlr2 r0
lshrsi3_26:
shlr2 r0
lshrsi3_24:
shlr16 r0
rts
shlr8 r0
lshrsi3_31:
shlr2 r0
lshrsi3_29:
shlr2 r0
lshrsi3_27:
shlr2 r0
lshrsi3_25:
shlr16 r0
shlr8 r0
rts
shlr r0
lshrsi3_0:
rts
nop
|
