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-rw-r--r--arch/sh/lib/movmem.S238
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diff --git a/arch/sh/lib/movmem.S b/arch/sh/lib/movmem.S
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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 .text
42 .balign 4
43 .global __movmem
44 .global __movstr
45 .set __movstr, __movmem
46 /* This would be a lot simpler if r6 contained the byte count
47 minus 64, and we wouldn't be called here for a byte count of 64. */
48__movmem:
49 sts.l pr,@-r15
50 shll2 r6
51 bsr __movmemSI52+2
52 mov.l @(48,r5),r0
53 .balign 4
54movmem_loop: /* Reached with rts */
55 mov.l @(60,r5),r0
56 add #-64,r6
57 mov.l r0,@(60,r4)
58 tst r6,r6
59 mov.l @(56,r5),r0
60 bt movmem_done
61 mov.l r0,@(56,r4)
62 cmp/pl r6
63 mov.l @(52,r5),r0
64 add #64,r5
65 mov.l r0,@(52,r4)
66 add #64,r4
67 bt __movmemSI52
68! done all the large groups, do the remainder
69! jump to movmem+
70 mova __movmemSI4+4,r0
71 add r6,r0
72 jmp @r0
73movmem_done: ! share slot insn, works out aligned.
74 lds.l @r15+,pr
75 mov.l r0,@(56,r4)
76 mov.l @(52,r5),r0
77 rts
78 mov.l r0,@(52,r4)
79 .balign 4
80
81 .global __movmemSI64
82 .global __movstrSI64
83 .set __movstrSI64, __movmemSI64
84__movmemSI64:
85 mov.l @(60,r5),r0
86 mov.l r0,@(60,r4)
87 .global __movmemSI60
88 .global __movstrSI60
89 .set __movstrSI60, __movmemSI60
90__movmemSI60:
91 mov.l @(56,r5),r0
92 mov.l r0,@(56,r4)
93 .global __movmemSI56
94 .global __movstrSI56
95 .set __movstrSI56, __movmemSI56
96__movmemSI56:
97 mov.l @(52,r5),r0
98 mov.l r0,@(52,r4)
99 .global __movmemSI52
100 .global __movstrSI52
101 .set __movstrSI52, __movmemSI52
102__movmemSI52:
103 mov.l @(48,r5),r0
104 mov.l r0,@(48,r4)
105 .global __movmemSI48
106 .global __movstrSI48
107 .set __movstrSI48, __movmemSI48
108__movmemSI48:
109 mov.l @(44,r5),r0
110 mov.l r0,@(44,r4)
111 .global __movmemSI44
112 .global __movstrSI44
113 .set __movstrSI44, __movmemSI44
114__movmemSI44:
115 mov.l @(40,r5),r0
116 mov.l r0,@(40,r4)
117 .global __movmemSI40
118 .global __movstrSI40
119 .set __movstrSI40, __movmemSI40
120__movmemSI40:
121 mov.l @(36,r5),r0
122 mov.l r0,@(36,r4)
123 .global __movmemSI36
124 .global __movstrSI36
125 .set __movstrSI36, __movmemSI36
126__movmemSI36:
127 mov.l @(32,r5),r0
128 mov.l r0,@(32,r4)
129 .global __movmemSI32
130 .global __movstrSI32
131 .set __movstrSI32, __movmemSI32
132__movmemSI32:
133 mov.l @(28,r5),r0
134 mov.l r0,@(28,r4)
135 .global __movmemSI28
136 .global __movstrSI28
137 .set __movstrSI28, __movmemSI28
138__movmemSI28:
139 mov.l @(24,r5),r0
140 mov.l r0,@(24,r4)
141 .global __movmemSI24
142 .global __movstrSI24
143 .set __movstrSI24, __movmemSI24
144__movmemSI24:
145 mov.l @(20,r5),r0
146 mov.l r0,@(20,r4)
147 .global __movmemSI20
148 .global __movstrSI20
149 .set __movstrSI20, __movmemSI20
150__movmemSI20:
151 mov.l @(16,r5),r0
152 mov.l r0,@(16,r4)
153 .global __movmemSI16
154 .global __movstrSI16
155 .set __movstrSI16, __movmemSI16
156__movmemSI16:
157 mov.l @(12,r5),r0
158 mov.l r0,@(12,r4)
159 .global __movmemSI12
160 .global __movstrSI12
161 .set __movstrSI12, __movmemSI12
162__movmemSI12:
163 mov.l @(8,r5),r0
164 mov.l r0,@(8,r4)
165 .global __movmemSI8
166 .global __movstrSI8
167 .set __movstrSI8, __movmemSI8
168__movmemSI8:
169 mov.l @(4,r5),r0
170 mov.l r0,@(4,r4)
171 .global __movmemSI4
172 .global __movstrSI4
173 .set __movstrSI4, __movmemSI4
174__movmemSI4:
175 mov.l @(0,r5),r0
176 rts
177 mov.l r0,@(0,r4)
178
179 .global __movmem_i4_even
180 .global __movstr_i4_even
181 .set __movstr_i4_even, __movmem_i4_even
182
183 .global __movmem_i4_odd
184 .global __movstr_i4_odd
185 .set __movstr_i4_odd, __movmem_i4_odd
186
187 .global __movmemSI12_i4
188 .global __movstrSI12_i4
189 .set __movstrSI12_i4, __movmemSI12_i4
190
191 .p2align 5
192L_movmem_2mod4_end:
193 mov.l r0,@(16,r4)
194 rts
195 mov.l r1,@(20,r4)
196
197 .p2align 2
198
199__movmem_i4_even:
200 mov.l @r5+,r0
201 bra L_movmem_start_even
202 mov.l @r5+,r1
203
204__movmem_i4_odd:
205 mov.l @r5+,r1
206 add #-4,r4
207 mov.l @r5+,r2
208 mov.l @r5+,r3
209 mov.l r1,@(4,r4)
210 mov.l r2,@(8,r4)
211
212L_movmem_loop:
213 mov.l r3,@(12,r4)
214 dt r6
215 mov.l @r5+,r0
216 bt/s L_movmem_2mod4_end
217 mov.l @r5+,r1
218 add #16,r4
219L_movmem_start_even:
220 mov.l @r5+,r2
221 mov.l @r5+,r3
222 mov.l r0,@r4
223 dt r6
224 mov.l r1,@(4,r4)
225 bf/s L_movmem_loop
226 mov.l r2,@(8,r4)
227 rts
228 mov.l r3,@(12,r4)
229
230 .p2align 4
231__movmemSI12_i4:
232 mov.l @r5,r0
233 mov.l @(4,r5),r1
234 mov.l @(8,r5),r2
235 mov.l r0,@r4
236 mov.l r1,@(4,r4)
237 rts
238 mov.l r2,@(8,r4)
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-31 03:21:26 -0400