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Rev 924 Rev 1096
1 
#
 1 
#
2 
# Copyright (C) 2003-2004 Jakub Jermar
 2 
# Copyright (C) 2003-2004 Jakub Jermar
3 
# All rights reserved.
 3 
# All rights reserved.
4 
#
 4 
#
5 
# Redistribution and use in source and binary forms, with or without
 5 
# Redistribution and use in source and binary forms, with or without
6 
# modification, are permitted provided that the following conditions
 6 
# modification, are permitted provided that the following conditions
7 
# are met:
 7 
# are met:
8 
#
 8 
#
9 
# - Redistributions of source code must retain the above copyright
 9 
# - Redistributions of source code must retain the above copyright
10 
#   notice, this list of conditions and the following disclaimer.
 10 
#   notice, this list of conditions and the following disclaimer.
11 
# - Redistributions in binary form must reproduce the above copyright
 11 
# - Redistributions in binary form must reproduce the above copyright
12 
#   notice, this list of conditions and the following disclaimer in the
 12 
#   notice, this list of conditions and the following disclaimer in the
13 
#   documentation and/or other materials provided with the distribution.
 13 
#   documentation and/or other materials provided with the distribution.
14 
# - The name of the author may not be used to endorse or promote products
 14 
# - The name of the author may not be used to endorse or promote products
15 
#   derived from this software without specific prior written permission.
 15 
#   derived from this software without specific prior written permission.
16 
#
 16 
#
17 
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 17 
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 18 
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 19 
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 20 
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 21 
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 22 
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 23 
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 24 
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 25 
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 26 
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 
#
 27 
#
28 
 
 28 
 
29 
#include <arch/asm/regname.h>
 29 
#include <arch/asm/regname.h>
30
30
31 
.text
 31 
.text
32 
 
 32 
 
33 
.macro cp0_read reg
 33 
.macro cp0_read reg
34 
	mfc0 $2,\reg
 34 
	mfc0 $2,\reg
35 
	j $31
 35 
	j $31
36 
	nop
 36 
	nop
37 
.endm
 37 
.endm
38 
 
 38 
 
39 
.macro cp0_write reg
 39 
.macro cp0_write reg
40 
	mtc0 $4,\reg
 40 
	mtc0 $4,\reg
41 
	j $31
 41 
	j $31
42 
	nop
 42 
	nop
43 
.endm
 43 
.endm
44 
 
 44 
 
45 
.set noat
 45 
.set noat
46 
.set noreorder
 46 
.set noreorder
47 
.set nomacro
 47 
.set nomacro
48 
 
 48 
 
49 
.global cp0_index_read
 - 
 
50 
.global cp0_index_write
 - 
 
51 
.global cp0_random_read
 - 
 
52 
.global cp0_entry_lo0_read
 - 
 
53 
.global cp0_entry_lo0_write
 - 
 
54 
.global cp0_entry_lo1_read
 - 
 
55 
.global cp0_entry_lo1_write
 - 
 
56 
.global cp0_context_read
 - 
 
57 
.global cp0_context_write
 - 
 
58 
.global cp0_pagemask_read
 - 
 
59 
.global cp0_pagemask_write
 - 
 
60 
.global cp0_wired_read
 - 
 
61 
.global cp0_wired_write
 - 
 
62 
.global cp0_badvaddr_read
 - 
 
63 
.global cp0_count_read
 - 
 
64 
.global cp0_count_write
 - 
 
65 
.global cp0_entry_hi_read
 - 
 
66 
.global cp0_entry_hi_write
 - 
 
67 
.global cp0_compare_read
 - 
 
68 
.global cp0_compare_write
 - 
 
69 
.global cp0_status_read
 - 
 
70 
.global cp0_status_write
 - 
 
71 
.global cp0_cause_read
 - 
 
72 
.global cp0_cause_write
 - 
 
73 
.global cp0_epc_read
 - 
 
74 
.global cp0_epc_write
 - 
 
75 
.global cp0_prid_read
 - 
 
76 
 
 - 
 
77 
cp0_index_read:		cp0_read $0
 - 
 
78 
cp0_index_write:	cp0_write $0
 - 
 
79 
 
 - 
 
80 
cp0_random_read:	cp0_read $1
 - 
 
81 
 
 - 
 
82 
cp0_entry_lo0_read:	cp0_read $2
 - 
 
83 
cp0_entry_lo0_write:	cp0_write $2
 - 
 
84 
 
 - 
 
85 
cp0_entry_lo1_read:	cp0_read $3
 - 
 
86 
cp0_entry_lo1_write:	cp0_write $3
 - 
 
87 
 
 - 
 
88 
cp0_context_read:	cp0_read $4
 - 
 
89 
cp0_context_write:	cp0_write $4
 - 
 
90 
 
 - 
 
91 
cp0_pagemask_read:	cp0_read $5
 - 
 
92 
cp0_pagemask_write:	cp0_write $5
 - 
 
93 
 
 - 
 
94 
cp0_wired_read:		cp0_read $6
 - 
 
95 
cp0_wired_write:	cp0_write $6
 - 
 
96 
 
 - 
 
97 
cp0_badvaddr_read:	cp0_read $8
 - 
 
98 
 
 - 
 
99 
cp0_count_read:		cp0_read $9
 - 
 
100 
cp0_count_write:	cp0_write $9
 - 
 
101 
 
 - 
 
102 
cp0_entry_hi_read:	cp0_read $10
 - 
 
103 
cp0_entry_hi_write:	cp0_write $10
 - 
 
104 
 
 - 
 
105 
cp0_compare_read:	cp0_read $11
 - 
 
106 
cp0_compare_write:	cp0_write $11
 - 
 
107 
 
 - 
 
108 
cp0_status_read:	cp0_read $12
 - 
 
109 
cp0_status_write:	cp0_write $12
 - 
 
110 
 
 - 
 
111 
cp0_cause_read:		cp0_read $13
 - 
 
112 
cp0_cause_write:	cp0_write $13
 - 
 
113 
 
 - 
 
114 
cp0_epc_read:		cp0_read $14
 - 
 
115 
cp0_epc_write:		cp0_write $14
 - 
 
116 
 
 - 
 
117 
cp0_prid_read:		cp0_read $15
 - 
 
118 
 
 - 
 
119 
 
 - 
 
120 
.global cpu_halt
 49 
.global cpu_halt
121 
cpu_halt:
 50 
cpu_halt:
122 
	j cpu_halt
 51 
	j cpu_halt
123 
	nop
 52 
	nop
124 
 
 53 
 
125 
 
 54 
 
126 
.global memsetb
 55 
.global memsetb
127 
memsetb:
 56 
memsetb:
128 
	j _memsetb
 57 
	j _memsetb
129 
	nop
 58 
	nop
130 
 
 59 
 
131 
.global memcpy
 60 
.global memcpy
132 
memcpy:
 61 
memcpy:
133 
	j _memcpy
 62 
	j _memcpy
134 
	nop
 63 
	nop
135 
 
 64 
 
136 
.macro fpu_gp_save reg ctx
 65 
.macro fpu_gp_save reg ctx
137 
	mfc1 $t0,$\reg
 66 
	mfc1 $t0,$\reg
138 
	sw $t0, \reg*4(\ctx)
 67 
	sw $t0, \reg*4(\ctx)
139 
.endm
 68 
.endm
140 
 
 69 
 
141 
.macro fpu_gp_restore reg ctx
 70 
.macro fpu_gp_restore reg ctx
142 
	lw $t0, \reg*4(\ctx)
 71 
	lw $t0, \reg*4(\ctx)
143 
	mtc1 $t0,$\reg
 72 
	mtc1 $t0,$\reg
144 
.endm
 73 
.endm
145 
 
 74 
 
146 
.macro fpu_ct_save reg ctx
 75 
.macro fpu_ct_save reg ctx
147 
	cfc1 $t0,$1
 76 
	cfc1 $t0,$1
148 
	sw $t0, (\reg+32)*4(\ctx)
 77 
	sw $t0, (\reg+32)*4(\ctx)
149 
.endm
78 
.endm
150 
 
 79 
 
151 
.macro fpu_ct_restore reg ctx
 80 
.macro fpu_ct_restore reg ctx
152 
	lw $t0, (\reg+32)*4(\ctx)
 81 
	lw $t0, (\reg+32)*4(\ctx)
153 
	ctc1 $t0,$\reg
 82 
	ctc1 $t0,$\reg
154 
.endm
 83 
.endm
155 
 
 84 
 
156 
 
 85 
 
157 
.global fpu_context_save
 86 
.global fpu_context_save
158 
fpu_context_save:
 87 
fpu_context_save:
159 
#ifdef ARCH_HAS_FPU
 88 
#ifdef ARCH_HAS_FPU
160 
	fpu_gp_save 0,$a0
 89 
	fpu_gp_save 0,$a0
161 
	fpu_gp_save 1,$a0
 90 
	fpu_gp_save 1,$a0
162 
	fpu_gp_save 2,$a0
 91 
	fpu_gp_save 2,$a0
163 
	fpu_gp_save 3,$a0
 92 
	fpu_gp_save 3,$a0
164 
	fpu_gp_save 4,$a0
 93 
	fpu_gp_save 4,$a0
165 
	fpu_gp_save 5,$a0
 94 
	fpu_gp_save 5,$a0
166 
	fpu_gp_save 6,$a0
 95 
	fpu_gp_save 6,$a0
167 
	fpu_gp_save 7,$a0
 96 
	fpu_gp_save 7,$a0
168 
	fpu_gp_save 8,$a0
 97 
	fpu_gp_save 8,$a0
169 
	fpu_gp_save 9,$a0
 98 
	fpu_gp_save 9,$a0
170 
	fpu_gp_save 10,$a0
 99 
	fpu_gp_save 10,$a0
171 
	fpu_gp_save 11,$a0
 100 
	fpu_gp_save 11,$a0
172 
	fpu_gp_save 12,$a0
 101 
	fpu_gp_save 12,$a0
173 
	fpu_gp_save 13,$a0
 102 
	fpu_gp_save 13,$a0
174 
	fpu_gp_save 14,$a0
 103 
	fpu_gp_save 14,$a0
175 
	fpu_gp_save 15,$a0
 104 
	fpu_gp_save 15,$a0
176 
	fpu_gp_save 16,$a0
 105 
	fpu_gp_save 16,$a0
177 
	fpu_gp_save 17,$a0
 106 
	fpu_gp_save 17,$a0
178 
	fpu_gp_save 18,$a0
 107 
	fpu_gp_save 18,$a0
179 
	fpu_gp_save 19,$a0
 108 
	fpu_gp_save 19,$a0
180 
	fpu_gp_save 20,$a0
 109 
	fpu_gp_save 20,$a0
181 
	fpu_gp_save 21,$a0
 110 
	fpu_gp_save 21,$a0
182 
	fpu_gp_save 22,$a0
 111 
	fpu_gp_save 22,$a0
183 
	fpu_gp_save 23,$a0
 112 
	fpu_gp_save 23,$a0
184 
	fpu_gp_save 24,$a0
 113 
	fpu_gp_save 24,$a0
185 
	fpu_gp_save 25,$a0
 114 
	fpu_gp_save 25,$a0
186 
	fpu_gp_save 26,$a0
 115 
	fpu_gp_save 26,$a0
187 
	fpu_gp_save 27,$a0
 116 
	fpu_gp_save 27,$a0
188 
	fpu_gp_save 28,$a0
 117 
	fpu_gp_save 28,$a0
189 
	fpu_gp_save 29,$a0
 118 
	fpu_gp_save 29,$a0
190 
	fpu_gp_save 30,$a0
 119 
	fpu_gp_save 30,$a0
191 
	fpu_gp_save 31,$a0
 120 
	fpu_gp_save 31,$a0
192 
 
 121 
 
193 
	fpu_ct_save 1,$a0
 122 
	fpu_ct_save 1,$a0
194 
	fpu_ct_save 2,$a0
 123 
	fpu_ct_save 2,$a0
195 
	fpu_ct_save 3,$a0
 124 
	fpu_ct_save 3,$a0
196 
	fpu_ct_save 4,$a0
 125 
	fpu_ct_save 4,$a0
197 
	fpu_ct_save 5,$a0
 126 
	fpu_ct_save 5,$a0
198 
	fpu_ct_save 6,$a0
 127 
	fpu_ct_save 6,$a0
199 
	fpu_ct_save 7,$a0
 128 
	fpu_ct_save 7,$a0
200 
	fpu_ct_save 8,$a0
 129 
	fpu_ct_save 8,$a0
201 
	fpu_ct_save 9,$a0
 130 
	fpu_ct_save 9,$a0
202 
	fpu_ct_save 10,$a0
 131 
	fpu_ct_save 10,$a0
203 
	fpu_ct_save 11,$a0
 132 
	fpu_ct_save 11,$a0
204 
	fpu_ct_save 12,$a0
 133 
	fpu_ct_save 12,$a0
205 
	fpu_ct_save 13,$a0
 134 
	fpu_ct_save 13,$a0
206 
	fpu_ct_save 14,$a0
 135 
	fpu_ct_save 14,$a0
207 
	fpu_ct_save 15,$a0
 136 
	fpu_ct_save 15,$a0
208 
	fpu_ct_save 16,$a0
 137 
	fpu_ct_save 16,$a0
209 
	fpu_ct_save 17,$a0
 138 
	fpu_ct_save 17,$a0
210 
	fpu_ct_save 18,$a0
 139 
	fpu_ct_save 18,$a0
211 
	fpu_ct_save 19,$a0
 140 
	fpu_ct_save 19,$a0
212 
	fpu_ct_save 20,$a0
 141 
	fpu_ct_save 20,$a0
213 
	fpu_ct_save 21,$a0
 142 
	fpu_ct_save 21,$a0
214 
	fpu_ct_save 22,$a0
 143 
	fpu_ct_save 22,$a0
215 
	fpu_ct_save 23,$a0
 144 
	fpu_ct_save 23,$a0
216 
	fpu_ct_save 24,$a0
 145 
	fpu_ct_save 24,$a0
217 
	fpu_ct_save 25,$a0
 146 
	fpu_ct_save 25,$a0
218 
	fpu_ct_save 26,$a0
 147 
	fpu_ct_save 26,$a0
219 
	fpu_ct_save 27,$a0
 148 
	fpu_ct_save 27,$a0
220 
	fpu_ct_save 28,$a0
 149 
	fpu_ct_save 28,$a0
221 
	fpu_ct_save 29,$a0
 150 
	fpu_ct_save 29,$a0
222 
	fpu_ct_save 30,$a0
 151 
	fpu_ct_save 30,$a0
223 
	fpu_ct_save 31,$a0
 152 
	fpu_ct_save 31,$a0
224 
#endif
153 
#endif
225 
	j $ra
 154 
	j $ra
226 
	nop
 155 
	nop
227 
 
 156 
 
228 
.global fpu_context_restore
 157 
.global fpu_context_restore
229 
fpu_context_restore:
 158 
fpu_context_restore:
230 
#ifdef ARCH_HAS_FPU
 159 
#ifdef ARCH_HAS_FPU
231 
	fpu_gp_restore 0,$a0
 160 
	fpu_gp_restore 0,$a0
232 
	fpu_gp_restore 1,$a0
 161 
	fpu_gp_restore 1,$a0
233 
	fpu_gp_restore 2,$a0
 162 
	fpu_gp_restore 2,$a0
234 
	fpu_gp_restore 3,$a0
 163 
	fpu_gp_restore 3,$a0
235 
	fpu_gp_restore 4,$a0
 164 
	fpu_gp_restore 4,$a0
236 
	fpu_gp_restore 5,$a0
 165 
	fpu_gp_restore 5,$a0
237 
	fpu_gp_restore 6,$a0
 166 
	fpu_gp_restore 6,$a0
238 
	fpu_gp_restore 7,$a0
 167 
	fpu_gp_restore 7,$a0
239 
	fpu_gp_restore 8,$a0
 168 
	fpu_gp_restore 8,$a0
240 
	fpu_gp_restore 9,$a0
 169 
	fpu_gp_restore 9,$a0
241 
	fpu_gp_restore 10,$a0
 170 
	fpu_gp_restore 10,$a0
242 
	fpu_gp_restore 11,$a0
 171 
	fpu_gp_restore 11,$a0
243 
	fpu_gp_restore 12,$a0
 172 
	fpu_gp_restore 12,$a0
244 
	fpu_gp_restore 13,$a0
 173 
	fpu_gp_restore 13,$a0
245 
	fpu_gp_restore 14,$a0
 174 
	fpu_gp_restore 14,$a0
246 
	fpu_gp_restore 15,$a0
 175 
	fpu_gp_restore 15,$a0
247 
	fpu_gp_restore 16,$a0
 176 
	fpu_gp_restore 16,$a0
248 
	fpu_gp_restore 17,$a0
 177 
	fpu_gp_restore 17,$a0
249 
	fpu_gp_restore 18,$a0
 178 
	fpu_gp_restore 18,$a0
250 
	fpu_gp_restore 19,$a0
 179 
	fpu_gp_restore 19,$a0
251 
	fpu_gp_restore 20,$a0
 180 
	fpu_gp_restore 20,$a0
252 
	fpu_gp_restore 21,$a0
 181 
	fpu_gp_restore 21,$a0
253 
	fpu_gp_restore 22,$a0
 182 
	fpu_gp_restore 22,$a0
254 
	fpu_gp_restore 23,$a0
 183 
	fpu_gp_restore 23,$a0
255 
	fpu_gp_restore 24,$a0
 184 
	fpu_gp_restore 24,$a0
256 
	fpu_gp_restore 25,$a0
 185 
	fpu_gp_restore 25,$a0
257 
	fpu_gp_restore 26,$a0
 186 
	fpu_gp_restore 26,$a0
258 
	fpu_gp_restore 27,$a0
 187 
	fpu_gp_restore 27,$a0
259 
	fpu_gp_restore 28,$a0
 188 
	fpu_gp_restore 28,$a0
260 
	fpu_gp_restore 29,$a0
 189 
	fpu_gp_restore 29,$a0
261 
	fpu_gp_restore 30,$a0
 190 
	fpu_gp_restore 30,$a0
262 
	fpu_gp_restore 31,$a0
 191 
	fpu_gp_restore 31,$a0
263 
 
 192 
 
264 
	fpu_ct_restore 1,$a0
 193 
	fpu_ct_restore 1,$a0
265 
	fpu_ct_restore 2,$a0
 194 
	fpu_ct_restore 2,$a0
266 
	fpu_ct_restore 3,$a0
 195 
	fpu_ct_restore 3,$a0
267 
	fpu_ct_restore 4,$a0
 196 
	fpu_ct_restore 4,$a0
268 
	fpu_ct_restore 5,$a0
 197 
	fpu_ct_restore 5,$a0
269 
	fpu_ct_restore 6,$a0
 198 
	fpu_ct_restore 6,$a0
270 
	fpu_ct_restore 7,$a0
 199 
	fpu_ct_restore 7,$a0
271 
	fpu_ct_restore 8,$a0
 200 
	fpu_ct_restore 8,$a0
272 
	fpu_ct_restore 9,$a0
 201 
	fpu_ct_restore 9,$a0
273 
	fpu_ct_restore 10,$a0
 202 
	fpu_ct_restore 10,$a0
274 
	fpu_ct_restore 11,$a0
 203 
	fpu_ct_restore 11,$a0
275 
	fpu_ct_restore 12,$a0
 204 
	fpu_ct_restore 12,$a0
276 
	fpu_ct_restore 13,$a0
 205 
	fpu_ct_restore 13,$a0
277 
	fpu_ct_restore 14,$a0
 206 
	fpu_ct_restore 14,$a0
278 
	fpu_ct_restore 15,$a0
 207 
	fpu_ct_restore 15,$a0
279 
	fpu_ct_restore 16,$a0
 208 
	fpu_ct_restore 16,$a0
280 
	fpu_ct_restore 17,$a0
 209 
	fpu_ct_restore 17,$a0
281 
	fpu_ct_restore 18,$a0
 210 
	fpu_ct_restore 18,$a0
282 
	fpu_ct_restore 19,$a0
 211 
	fpu_ct_restore 19,$a0
283 
	fpu_ct_restore 20,$a0
 212 
	fpu_ct_restore 20,$a0
284 
	fpu_ct_restore 21,$a0
 213 
	fpu_ct_restore 21,$a0
285 
	fpu_ct_restore 22,$a0
 214 
	fpu_ct_restore 22,$a0
286 
	fpu_ct_restore 23,$a0
 215 
	fpu_ct_restore 23,$a0
287 
	fpu_ct_restore 24,$a0
 216 
	fpu_ct_restore 24,$a0
288 
	fpu_ct_restore 25,$a0
 217 
	fpu_ct_restore 25,$a0
289 
	fpu_ct_restore 26,$a0
 218 
	fpu_ct_restore 26,$a0
290 
	fpu_ct_restore 27,$a0
 219 
	fpu_ct_restore 27,$a0
291 
	fpu_ct_restore 28,$a0
 220 
	fpu_ct_restore 28,$a0
292 
	fpu_ct_restore 29,$a0
 221 
	fpu_ct_restore 29,$a0
293 
	fpu_ct_restore 30,$a0
 222 
	fpu_ct_restore 30,$a0
294 
	fpu_ct_restore 31,$a0
 223 
	fpu_ct_restore 31,$a0
295 
#endif
224 
#endif
296 
	j $ra
 225 
	j $ra
297 
	nop
 226 
	nop
298 
 
 227