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1 | # |
1 | # |
2 | # Copyright (C) 2001-2004 Jakub Jermar |
2 | # Copyright (C) 2001-2004 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 | .text |
29 | .text |
30 | 30 | ||
31 | .macro cp0_read reg |
31 | .macro cp0_read reg |
32 | mfc0 $2,\reg |
32 | mfc0 $2,\reg |
33 | j $31 |
33 | j $31 |
34 | nop |
34 | nop |
35 | .endm |
35 | .endm |
36 | 36 | ||
37 | .macro cp0_write reg |
37 | .macro cp0_write reg |
38 | mtc0 $4,\reg |
38 | mtc0 $4,\reg |
39 | j $31 |
39 | j $31 |
40 | nop |
40 | nop |
41 | .endm |
41 | .endm |
42 | 42 | ||
43 | .set noat |
43 | .set noat |
44 | .set noreorder |
44 | .set noreorder |
45 | .set nomacro |
45 | .set nomacro |
46 | 46 | ||
47 | .global cp0_index_read |
47 | .global cp0_index_read |
48 | .global cp0_index_write |
48 | .global cp0_index_write |
49 | .global cp0_random_read |
49 | .global cp0_random_read |
50 | .global cp0_entry_lo0_read |
50 | .global cp0_entry_lo0_read |
51 | .global cp0_entry_lo0_write |
51 | .global cp0_entry_lo0_write |
52 | .global cp0_entry_lo1_read |
52 | .global cp0_entry_lo1_read |
53 | .global cp0_entry_lo1_write |
53 | .global cp0_entry_lo1_write |
54 | .global cp0_context_read |
54 | .global cp0_context_read |
55 | .global cp0_context_write |
55 | .global cp0_context_write |
56 | .global cp0_pagemask_read |
56 | .global cp0_pagemask_read |
57 | .global cp0_pagemask_write |
57 | .global cp0_pagemask_write |
58 | .global cp0_wired_read |
58 | .global cp0_wired_read |
59 | .global cp0_wired_write |
59 | .global cp0_wired_write |
60 | .global cp0_badvaddr_read |
60 | .global cp0_badvaddr_read |
61 | .global cp0_count_read |
61 | .global cp0_count_read |
62 | .global cp0_count_write |
62 | .global cp0_count_write |
63 | .global cp0_hi_read |
63 | .global cp0_hi_read |
64 | .global cp0_hi_write |
64 | .global cp0_hi_write |
65 | .global cp0_compare_read |
65 | .global cp0_compare_read |
66 | .global cp0_compare_write |
66 | .global cp0_compare_write |
67 | .global cp0_status_read |
67 | .global cp0_status_read |
68 | .global cp0_status_write |
68 | .global cp0_status_write |
69 | .global cp0_cause_read |
69 | .global cp0_cause_read |
70 | .global cp0_cause_write |
70 | .global cp0_cause_write |
71 | .global cp0_epc_read |
71 | .global cp0_epc_read |
72 | .global cp0_epc_write |
72 | .global cp0_epc_write |
73 | .global cp0_prid_read |
73 | .global cp0_prid_read |
74 | 74 | ||
75 | cp0_index_read: cp0_read $0 |
75 | cp0_index_read: cp0_read $0 |
76 | cp0_index_write: cp0_write $0 |
76 | cp0_index_write: cp0_write $0 |
77 | 77 | ||
78 | cp0_random_read: cp0_read $1 |
78 | cp0_random_read: cp0_read $1 |
79 | 79 | ||
80 | cp0_entry_lo0_read: cp0_read $2 |
80 | cp0_entry_lo0_read: cp0_read $2 |
81 | cp0_entry_lo0_write: cp0_write $2 |
81 | cp0_entry_lo0_write: cp0_write $2 |
82 | 82 | ||
83 | cp0_entry_lo1_read: cp0_read $3 |
83 | cp0_entry_lo1_read: cp0_read $3 |
84 | cp0_entry_lo1_write: cp0_write $3 |
84 | cp0_entry_lo1_write: cp0_write $3 |
85 | 85 | ||
86 | cp0_context_read: cp0_read $4 |
86 | cp0_context_read: cp0_read $4 |
87 | cp0_context_write: cp0_write $4 |
87 | cp0_context_write: cp0_write $4 |
88 | 88 | ||
89 | cp0_pagemask_read: cp0_read $5 |
89 | cp0_pagemask_read: cp0_read $5 |
90 | cp0_pagemask_write: cp0_write $5 |
90 | cp0_pagemask_write: cp0_write $5 |
91 | 91 | ||
92 | cp0_wired_read: cp0_read $6 |
92 | cp0_wired_read: cp0_read $6 |
93 | cp0_wired_write: cp0_write $6 |
93 | cp0_wired_write: cp0_write $6 |
94 | 94 | ||
95 | cp0_badvaddr_read: cp0_read $8 |
95 | cp0_badvaddr_read: cp0_read $8 |
96 | 96 | ||
97 | cp0_count_read: cp0_read $9 |
97 | cp0_count_read: cp0_read $9 |
98 | cp0_count_write: cp0_write $9 |
98 | cp0_count_write: cp0_write $9 |
99 | 99 | ||
100 | cp0_entry_hi_read: cp0_read $10 |
100 | cp0_entry_hi_read: cp0_read $10 |
101 | cp0_entry_hi_write: cp0_write $10 |
101 | cp0_entry_hi_write: cp0_write $10 |
102 | 102 | ||
103 | cp0_compare_read: cp0_read $11 |
103 | cp0_compare_read: cp0_read $11 |
104 | cp0_compare_write: cp0_write $11 |
104 | cp0_compare_write: cp0_write $11 |
105 | 105 | ||
106 | cp0_status_read: cp0_read $12 |
106 | cp0_status_read: cp0_read $12 |
107 | cp0_status_write: cp0_write $12 |
107 | cp0_status_write: cp0_write $12 |
108 | 108 | ||
109 | cp0_cause_read: cp0_read $13 |
109 | cp0_cause_read: cp0_read $13 |
110 | cp0_cause_write: cp0_write $13 |
110 | cp0_cause_write: cp0_write $13 |
111 | 111 | ||
112 | cp0_epc_read: cp0_read $14 |
112 | cp0_epc_read: cp0_read $14 |
113 | cp0_epc_write: cp0_write $14 |
113 | cp0_epc_write: cp0_write $14 |
114 | 114 | ||
115 | cp0_prid_read: cp0_read $15 |
115 | cp0_prid_read: cp0_read $15 |
116 | 116 | ||
117 | 117 | ||
118 | .global tlbp |
118 | .global tlbp |
119 | tlbp: |
119 | tlbp: |
120 | tlbp |
120 | tlbp |
121 | j $31 |
121 | j $31 |
122 | nop |
122 | nop |
123 | 123 | ||
124 | .global tlbr |
124 | .global tlbr |
125 | tlbr: |
125 | tlbr: |
126 | tlbr |
126 | tlbr |
127 | j $31 |
127 | j $31 |
128 | nop |
128 | nop |
129 | 129 | ||
130 | .global tlbwi |
130 | .global tlbwi |
131 | tlbwi: |
131 | tlbwi: |
132 | tlbwi |
132 | tlbwi |
133 | j $31 |
133 | j $31 |
134 | nop |
134 | nop |
135 | 135 | ||
136 | .global tlbwr |
136 | .global tlbwr |
137 | tlbwr: |
137 | tlbwr: |
138 | tlbwr |
138 | tlbwr |
139 | j $31 |
139 | j $31 |
140 | nop |
140 | nop |
141 | 141 | ||
142 | .global cpu_halt |
142 | .global cpu_halt |
143 | cpu_halt: |
143 | cpu_halt: |
144 | j cpu_halt |
144 | j cpu_halt |
145 | nop |
145 | nop |
146 | 146 | ||
147 | 147 | ||
148 | .global memsetb |
148 | .global memsetb |
149 | memsetb: |
149 | memsetb: |
150 | j _memsetb |
150 | j _memsetb |
151 | nop |
151 | nop |
152 | 152 | ||
153 | .global memcopy |
153 | .global memcpy |
154 | memcopy: |
154 | memcpy: |
155 | j _memcopy |
155 | j _memcpy |
156 | nop |
156 | nop |
157 | 157 | ||
158 | # THIS IS USERSPACE CODE |
158 | # THIS IS USERSPACE CODE |
159 | .global utext |
159 | .global utext |
160 | utext: |
160 | utext: |
161 | j $31 |
161 | j $31 |
162 | nop |
162 | nop |
163 | utext_end: |
163 | utext_end: |
164 | 164 | ||
165 | .data |
165 | .data |
166 | .global utext_size |
166 | .global utext_size |
167 | utext_size: |
167 | utext_size: |
168 | .long utext_end-utext |
168 | .long utext_end-utext |
169 | 169 | ||
170 | 170 | ||
171 |
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171 |
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172 | 172 | ||
173 | 173 | ||
174 | 174 |