Rev 60 | Rev 83 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 60 | Rev 82 | ||
|---|---|---|---|
| 1 | # |
1 | # |
| 2 | # Copyright (C) 2005 Jakub Jermar |
2 | # Copyright (C) 2005 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 | .global context_save |
31 | .global context_save |
| 32 | .global context_restore |
32 | .global context_restore |
| 33 | 33 | ||
| 34 | context_save: |
34 | context_save: |
| 35 | alloc loc0 = ar.pfs, 1, 2, 0, 0 |
35 | alloc loc0 = ar.pfs, 1, 9, 0, 0 |
| 36 | 36 | ||
| 37 | /* |
37 | /* |
| 38 | * TODO: save the rest of the context registers. |
38 | * TODO: save the rest of the context registers. |
| 39 | */ |
39 | */ |
| 40 | 40 | ||
| - | 41 | /* |
|
| - | 42 | * Save general registers |
|
| - | 43 | */ |
|
| 41 | st8 [in0] = r1, 8 ;; |
44 | st8 [in0] = r1, 8 ;; |
| 42 | st8 [in0] = r2, 8 ;; |
45 | st8 [in0] = r2, 8 ;; |
| 43 | st8 [in0] = r3, 8 ;; |
46 | st8 [in0] = r3, 8 ;; |
| 44 | st8 [in0] = r4, 8 ;; |
47 | st8 [in0] = r4, 8 ;; |
| 45 | st8 [in0] = r5, 8 ;; |
48 | st8 [in0] = r5, 8 ;; |
| 46 | st8 [in0] = r6, 8 ;; |
49 | st8 [in0] = r6, 8 ;; |
| 47 | st8 [in0] = r7, 8 ;; |
50 | st8 [in0] = r7, 8 ;; |
| 48 | st8 [in0] = r8, 8 ;; |
51 | st8 [in0] = r8, 8 ;; |
| 49 | st8 [in0] = r9, 8 ;; |
52 | st8 [in0] = r9, 8 ;; |
| 50 | st8 [in0] = r10, 8 ;; |
53 | st8 [in0] = r10, 8 ;; |
| 51 | st8 [in0] = r11, 8 ;; |
54 | st8 [in0] = r11, 8 ;; |
| 52 | st8 [in0] = r12, 8 ;; /* save sp */ |
55 | st8 [in0] = r12, 8 ;; /* save sp */ |
| 53 | st8 [in0] = r13, 8 ;; |
56 | st8 [in0] = r13, 8 ;; |
| 54 | st8 [in0] = r14, 8 ;; |
57 | st8 [in0] = r14, 8 ;; |
| 55 | st8 [in0] = r15, 8 ;; |
58 | st8 [in0] = r15, 8 ;; |
| 56 | st8 [in0] = r16, 8 ;; |
59 | st8 [in0] = r16, 8 ;; |
| 57 | st8 [in0] = r17, 8 ;; |
60 | st8 [in0] = r17, 8 ;; |
| 58 | st8 [in0] = r18, 8 ;; |
61 | st8 [in0] = r18, 8 ;; |
| 59 | st8 [in0] = r19, 8 ;; |
62 | st8 [in0] = r19, 8 ;; |
| 60 | st8 [in0] = r20, 8 ;; |
63 | st8 [in0] = r20, 8 ;; |
| 61 | st8 [in0] = r21, 8 ;; |
64 | st8 [in0] = r21, 8 ;; |
| 62 | st8 [in0] = r22, 8 ;; |
65 | st8 [in0] = r22, 8 ;; |
| 63 | st8 [in0] = r23, 8 ;; |
66 | st8 [in0] = r23, 8 ;; |
| 64 | st8 [in0] = r24, 8 ;; |
67 | st8 [in0] = r24, 8 ;; |
| 65 | st8 [in0] = r25, 8 ;; |
68 | st8 [in0] = r25, 8 ;; |
| 66 | st8 [in0] = r26, 8 ;; |
69 | st8 [in0] = r26, 8 ;; |
| 67 | st8 [in0] = r27, 8 ;; |
70 | st8 [in0] = r27, 8 ;; |
| 68 | st8 [in0] = r28, 8 ;; |
71 | st8 [in0] = r28, 8 ;; |
| 69 | st8 [in0] = r29, 8 ;; |
72 | st8 [in0] = r29, 8 ;; |
| 70 | st8 [in0] = r30, 8 ;; |
73 | st8 [in0] = r30, 8 ;; |
| 71 | st8 [in0] = r31, 8 ;; |
74 | st8 [in0] = r31, 8 ;; |
| 72 | 75 | ||
| - | 76 | /* |
|
| 73 | /* save pc */ |
77 | * Save branch registers |
| - | 78 | */ |
|
| 74 | mov loc1 = b0 ;; |
79 | mov loc1 = b0 ;; |
| - | 80 | st8 [in0] = loc1, 8 /* save pc */ |
|
| - | 81 | mov loc2 = b1 ;; |
|
| - | 82 | st8 [in0] = loc2, 8 |
|
| - | 83 | mov loc3 = b2 ;; |
|
| - | 84 | st8 [in0] = loc3, 8 |
|
| - | 85 | mov loc4 = b3 ;; |
|
| - | 86 | st8 [in0] = loc4, 8 |
|
| - | 87 | mov loc5 = b4 ;; |
|
| - | 88 | st8 [in0] = loc5, 8 |
|
| - | 89 | mov loc6 = b5 ;; |
|
| - | 90 | st8 [in0] = loc6, 8 |
|
| - | 91 | mov loc7 = b6 ;; |
|
| - | 92 | st8 [in0] = loc7, 8 |
|
| - | 93 | mov loc8 = b7 ;; |
|
| - | 94 | st8 [in0] = loc8, 8 |
|
| - | 95 | ||
| - | 96 | /* |
|
| - | 97 | * Save predicate registers |
|
| - | 98 | */ |
|
| - | 99 | mov loc1 = pr ;; |
|
| 75 | st8 [in0] = loc1, 8 |
100 | st8 [in0] = loc1, 8 |
| 76 | 101 | ||
| 77 | mov ar.pfs = loc0 |
102 | mov ar.pfs = loc0 |
| 78 | 103 | ||
| 79 | add r8 = r0, r0, 1 /* context_save returns 1 */ |
104 | add r8 = r0, r0, 1 /* context_save returns 1 */ |
| 80 | br.ret.sptk.many b0 |
105 | br.ret.sptk.many b0 |
| 81 | 106 | ||
| 82 | context_restore: |
107 | context_restore: |
| 83 | alloc loc0 = ar.pfs, 1, 2, 0, 0 |
108 | alloc loc0 = ar.pfs, 1, 9, 0, 0 |
| 84 | 109 | ||
| 85 | /* |
110 | /* |
| 86 | * TODO: restore the rest of the context registers. |
111 | * TODO: restore the rest of the context registers. |
| 87 | */ |
112 | */ |
| 88 | 113 | ||
| - | 114 | /* |
|
| - | 115 | * Restore general registers |
|
| - | 116 | */ |
|
| 89 | ld8 r1 = [in0], 8 ;; |
117 | ld8 r1 = [in0], 8 ;; |
| 90 | ld8 r2 = [in0], 8 ;; |
118 | ld8 r2 = [in0], 8 ;; |
| 91 | ld8 r3 = [in0], 8 ;; |
119 | ld8 r3 = [in0], 8 ;; |
| 92 | ld8 r4 = [in0], 8 ;; |
120 | ld8 r4 = [in0], 8 ;; |
| 93 | ld8 r5 = [in0], 8 ;; |
121 | ld8 r5 = [in0], 8 ;; |
| 94 | ld8 r6 = [in0], 8 ;; |
122 | ld8 r6 = [in0], 8 ;; |
| 95 | ld8 r7 = [in0], 8 ;; |
123 | ld8 r7 = [in0], 8 ;; |
| 96 | ld8 r8 = [in0], 8 ;; |
124 | ld8 r8 = [in0], 8 ;; |
| 97 | ld8 r9 = [in0], 8 ;; |
125 | ld8 r9 = [in0], 8 ;; |
| 98 | ld8 r10 = [in0], 8 ;; |
126 | ld8 r10 = [in0], 8 ;; |
| 99 | ld8 r11 = [in0], 8 ;; |
127 | ld8 r11 = [in0], 8 ;; |
| 100 | ld8 r12 = [in0], 8 ;; /* restore sp */ |
128 | ld8 r12 = [in0], 8 ;; /* restore sp */ |
| 101 | ld8 r13 = [in0], 8 ;; |
129 | ld8 r13 = [in0], 8 ;; |
| 102 | ld8 r14 = [in0], 8 ;; |
130 | ld8 r14 = [in0], 8 ;; |
| 103 | ld8 r15 = [in0], 8 ;; |
131 | ld8 r15 = [in0], 8 ;; |
| 104 | ld8 r16 = [in0], 8 ;; |
132 | ld8 r16 = [in0], 8 ;; |
| 105 | ld8 r17 = [in0], 8 ;; |
133 | ld8 r17 = [in0], 8 ;; |
| 106 | ld8 r18 = [in0], 8 ;; |
134 | ld8 r18 = [in0], 8 ;; |
| 107 | ld8 r19 = [in0], 8 ;; |
135 | ld8 r19 = [in0], 8 ;; |
| 108 | ld8 r20 = [in0], 8 ;; |
136 | ld8 r20 = [in0], 8 ;; |
| 109 | ld8 r21 = [in0], 8 ;; |
137 | ld8 r21 = [in0], 8 ;; |
| 110 | ld8 r22 = [in0], 8 ;; |
138 | ld8 r22 = [in0], 8 ;; |
| 111 | ld8 r23 = [in0], 8 ;; |
139 | ld8 r23 = [in0], 8 ;; |
| 112 | ld8 r24 = [in0], 8 ;; |
140 | ld8 r24 = [in0], 8 ;; |
| 113 | ld8 r25 = [in0], 8 ;; |
141 | ld8 r25 = [in0], 8 ;; |
| 114 | ld8 r26 = [in0], 8 ;; |
142 | ld8 r26 = [in0], 8 ;; |
| 115 | ld8 r27 = [in0], 8 ;; |
143 | ld8 r27 = [in0], 8 ;; |
| 116 | ld8 r28 = [in0], 8 ;; |
144 | ld8 r28 = [in0], 8 ;; |
| 117 | ld8 r29 = [in0], 8 ;; |
145 | ld8 r29 = [in0], 8 ;; |
| 118 | ld8 r30 = [in0], 8 ;; |
146 | ld8 r30 = [in0], 8 ;; |
| 119 | ld8 r31 = [in0], 8 ;; |
147 | ld8 r31 = [in0], 8 ;; |
| 120 | 148 | ||
| - | 149 | /* |
|
| 121 | /* restore pc */ |
150 | * Restore branch registers |
| - | 151 | */ |
|
| 122 | ld8 loc1 = [in0], 8 ;; |
152 | ld8 loc1 = [in0], 8 ;; /* restore pc */ |
| 123 | mov b0 = loc1 |
153 | mov b0 = loc1 |
| - | 154 | ld8 loc2 = [in0], 8 ;; |
|
| - | 155 | mov b1 = loc2 |
|
| - | 156 | ld8 loc3 = [in0], 8 ;; |
|
| - | 157 | mov b2 = loc3 |
|
| - | 158 | ld8 loc4 = [in0], 8 ;; |
|
| - | 159 | mov b3 = loc4 |
|
| - | 160 | ld8 loc5 = [in0], 8 ;; |
|
| - | 161 | mov b4 = loc5 |
|
| - | 162 | ld8 loc6 = [in0], 8 ;; |
|
| - | 163 | mov b5 = loc6 |
|
| - | 164 | ld8 loc7 = [in0], 8 ;; |
|
| - | 165 | mov b6 = loc7 |
|
| - | 166 | ld8 loc8 = [in0], 8 ;; |
|
| - | 167 | mov b7 = loc8 |
|
| - | 168 | ||
| - | 169 | ld8 loc1 = [in0], 8 ;; |
|
| - | 170 | mov pr = loc1, ~0 |
|
| 124 | 171 | ||
| 125 | mov ar.pfs = loc0 |
172 | mov ar.pfs = loc0 |
| 126 | 173 | ||
| 127 | mov r8 = r0 /* context_restore returns 0 */ |
174 | mov r8 = r0 /* context_restore returns 0 */ |
| 128 | br.ret.sptk.many b0 |
175 | br.ret.sptk.many b0 |
| 129 | 176 | ||