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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, | |
1aad54a9 PM |
4 | 2004, 2005, 2006 |
5 | Free Software Foundation, Inc. | |
4494ce4f | 6 | */ |
1aad54a9 PM |
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 | .text | |
21 | .balign 4 | |
22 | .global __movmem | |
23 | .global __movstr | |
24 | .set __movstr, __movmem | |
25 | /* This would be a lot simpler if r6 contained the byte count | |
26 | minus 64, and we wouldn't be called here for a byte count of 64. */ | |
27 | __movmem: | |
28 | sts.l pr,@-r15 | |
29 | shll2 r6 | |
30 | bsr __movmemSI52+2 | |
31 | mov.l @(48,r5),r0 | |
32 | .balign 4 | |
33 | movmem_loop: /* Reached with rts */ | |
34 | mov.l @(60,r5),r0 | |
35 | add #-64,r6 | |
36 | mov.l r0,@(60,r4) | |
37 | tst r6,r6 | |
38 | mov.l @(56,r5),r0 | |
39 | bt movmem_done | |
40 | mov.l r0,@(56,r4) | |
41 | cmp/pl r6 | |
42 | mov.l @(52,r5),r0 | |
43 | add #64,r5 | |
44 | mov.l r0,@(52,r4) | |
45 | add #64,r4 | |
46 | bt __movmemSI52 | |
47 | ! done all the large groups, do the remainder | |
48 | ! jump to movmem+ | |
49 | mova __movmemSI4+4,r0 | |
50 | add r6,r0 | |
51 | jmp @r0 | |
52 | movmem_done: ! share slot insn, works out aligned. | |
53 | lds.l @r15+,pr | |
54 | mov.l r0,@(56,r4) | |
55 | mov.l @(52,r5),r0 | |
56 | rts | |
57 | mov.l r0,@(52,r4) | |
58 | .balign 4 | |
59 | ||
60 | .global __movmemSI64 | |
61 | .global __movstrSI64 | |
62 | .set __movstrSI64, __movmemSI64 | |
63 | __movmemSI64: | |
64 | mov.l @(60,r5),r0 | |
65 | mov.l r0,@(60,r4) | |
66 | .global __movmemSI60 | |
67 | .global __movstrSI60 | |
68 | .set __movstrSI60, __movmemSI60 | |
69 | __movmemSI60: | |
70 | mov.l @(56,r5),r0 | |
71 | mov.l r0,@(56,r4) | |
72 | .global __movmemSI56 | |
73 | .global __movstrSI56 | |
74 | .set __movstrSI56, __movmemSI56 | |
75 | __movmemSI56: | |
76 | mov.l @(52,r5),r0 | |
77 | mov.l r0,@(52,r4) | |
78 | .global __movmemSI52 | |
79 | .global __movstrSI52 | |
80 | .set __movstrSI52, __movmemSI52 | |
81 | __movmemSI52: | |
82 | mov.l @(48,r5),r0 | |
83 | mov.l r0,@(48,r4) | |
84 | .global __movmemSI48 | |
85 | .global __movstrSI48 | |
86 | .set __movstrSI48, __movmemSI48 | |
87 | __movmemSI48: | |
88 | mov.l @(44,r5),r0 | |
89 | mov.l r0,@(44,r4) | |
90 | .global __movmemSI44 | |
91 | .global __movstrSI44 | |
92 | .set __movstrSI44, __movmemSI44 | |
93 | __movmemSI44: | |
94 | mov.l @(40,r5),r0 | |
95 | mov.l r0,@(40,r4) | |
96 | .global __movmemSI40 | |
97 | .global __movstrSI40 | |
98 | .set __movstrSI40, __movmemSI40 | |
99 | __movmemSI40: | |
100 | mov.l @(36,r5),r0 | |
101 | mov.l r0,@(36,r4) | |
102 | .global __movmemSI36 | |
103 | .global __movstrSI36 | |
104 | .set __movstrSI36, __movmemSI36 | |
105 | __movmemSI36: | |
106 | mov.l @(32,r5),r0 | |
107 | mov.l r0,@(32,r4) | |
108 | .global __movmemSI32 | |
109 | .global __movstrSI32 | |
110 | .set __movstrSI32, __movmemSI32 | |
111 | __movmemSI32: | |
112 | mov.l @(28,r5),r0 | |
113 | mov.l r0,@(28,r4) | |
114 | .global __movmemSI28 | |
115 | .global __movstrSI28 | |
116 | .set __movstrSI28, __movmemSI28 | |
117 | __movmemSI28: | |
118 | mov.l @(24,r5),r0 | |
119 | mov.l r0,@(24,r4) | |
120 | .global __movmemSI24 | |
121 | .global __movstrSI24 | |
122 | .set __movstrSI24, __movmemSI24 | |
123 | __movmemSI24: | |
124 | mov.l @(20,r5),r0 | |
125 | mov.l r0,@(20,r4) | |
126 | .global __movmemSI20 | |
127 | .global __movstrSI20 | |
128 | .set __movstrSI20, __movmemSI20 | |
129 | __movmemSI20: | |
130 | mov.l @(16,r5),r0 | |
131 | mov.l r0,@(16,r4) | |
132 | .global __movmemSI16 | |
133 | .global __movstrSI16 | |
134 | .set __movstrSI16, __movmemSI16 | |
135 | __movmemSI16: | |
136 | mov.l @(12,r5),r0 | |
137 | mov.l r0,@(12,r4) | |
138 | .global __movmemSI12 | |
139 | .global __movstrSI12 | |
140 | .set __movstrSI12, __movmemSI12 | |
141 | __movmemSI12: | |
142 | mov.l @(8,r5),r0 | |
143 | mov.l r0,@(8,r4) | |
144 | .global __movmemSI8 | |
145 | .global __movstrSI8 | |
146 | .set __movstrSI8, __movmemSI8 | |
147 | __movmemSI8: | |
148 | mov.l @(4,r5),r0 | |
149 | mov.l r0,@(4,r4) | |
150 | .global __movmemSI4 | |
151 | .global __movstrSI4 | |
152 | .set __movstrSI4, __movmemSI4 | |
153 | __movmemSI4: | |
154 | mov.l @(0,r5),r0 | |
155 | rts | |
156 | mov.l r0,@(0,r4) | |
157 | ||
158 | .global __movmem_i4_even | |
159 | .global __movstr_i4_even | |
160 | .set __movstr_i4_even, __movmem_i4_even | |
161 | ||
162 | .global __movmem_i4_odd | |
163 | .global __movstr_i4_odd | |
164 | .set __movstr_i4_odd, __movmem_i4_odd | |
165 | ||
166 | .global __movmemSI12_i4 | |
167 | .global __movstrSI12_i4 | |
168 | .set __movstrSI12_i4, __movmemSI12_i4 | |
169 | ||
170 | .p2align 5 | |
171 | L_movmem_2mod4_end: | |
172 | mov.l r0,@(16,r4) | |
173 | rts | |
174 | mov.l r1,@(20,r4) | |
175 | ||
176 | .p2align 2 | |
177 | ||
178 | __movmem_i4_even: | |
179 | mov.l @r5+,r0 | |
180 | bra L_movmem_start_even | |
181 | mov.l @r5+,r1 | |
182 | ||
183 | __movmem_i4_odd: | |
184 | mov.l @r5+,r1 | |
185 | add #-4,r4 | |
186 | mov.l @r5+,r2 | |
187 | mov.l @r5+,r3 | |
188 | mov.l r1,@(4,r4) | |
189 | mov.l r2,@(8,r4) | |
190 | ||
191 | L_movmem_loop: | |
192 | mov.l r3,@(12,r4) | |
193 | dt r6 | |
194 | mov.l @r5+,r0 | |
195 | bt/s L_movmem_2mod4_end | |
196 | mov.l @r5+,r1 | |
197 | add #16,r4 | |
198 | L_movmem_start_even: | |
199 | mov.l @r5+,r2 | |
200 | mov.l @r5+,r3 | |
201 | mov.l r0,@r4 | |
202 | dt r6 | |
203 | mov.l r1,@(4,r4) | |
204 | bf/s L_movmem_loop | |
205 | mov.l r2,@(8,r4) | |
206 | rts | |
207 | mov.l r3,@(12,r4) | |
208 | ||
209 | .p2align 4 | |
210 | __movmemSI12_i4: | |
211 | mov.l @r5,r0 | |
212 | mov.l @(4,r5),r1 | |
213 | mov.l @(8,r5),r2 | |
214 | mov.l r0,@r4 | |
215 | mov.l r1,@(4,r4) | |
216 | rts | |
217 | mov.l r2,@(8,r4) |