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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 | #define __ASM__ |
29 | #define __ASM__ |
30 | #include <arch/context_offset.h> |
30 | #include <arch/context_offset.h> |
31 | 31 | ||
32 | .text |
32 | .text |
33 | 33 | ||
34 | .global context_save_arch |
34 | .global context_save_arch |
35 | .global context_restore_arch |
35 | .global context_restore_arch |
36 | 36 | ||
37 | .macro CONTEXT_STORE r |
37 | .macro CONTEXT_STORE r |
38 | stx %l0, [\r + OFFSET_L0] |
38 | stx %l0, [\r + OFFSET_L0] |
39 | stx %l1, [\r + OFFSET_L1] |
39 | stx %l1, [\r + OFFSET_L1] |
40 | stx %l2, [\r + OFFSET_L2] |
40 | stx %l2, [\r + OFFSET_L2] |
41 | stx %l3, [\r + OFFSET_L3] |
41 | stx %l3, [\r + OFFSET_L3] |
42 | stx %l4, [\r + OFFSET_L4] |
42 | stx %l4, [\r + OFFSET_L4] |
43 | stx %l5, [\r + OFFSET_L5] |
43 | stx %l5, [\r + OFFSET_L5] |
44 | stx %l6, [\r + OFFSET_L6] |
44 | stx %l6, [\r + OFFSET_L6] |
45 | stx %l7, [\r + OFFSET_L7] |
45 | stx %l7, [\r + OFFSET_L7] |
46 | stx %i1, [\r + OFFSET_I1] |
46 | stx %i1, [\r + OFFSET_I1] |
47 | stx %i2, [\r + OFFSET_I2] |
47 | stx %i2, [\r + OFFSET_I2] |
48 | stx %i3, [\r + OFFSET_I3] |
48 | stx %i3, [\r + OFFSET_I3] |
49 | stx %i4, [\r + OFFSET_I4] |
49 | stx %i4, [\r + OFFSET_I4] |
50 | stx %i5, [\r + OFFSET_I5] |
50 | stx %i5, [\r + OFFSET_I5] |
51 | stx %i6, [\r + OFFSET_SP] |
51 | stx %i6, [\r + OFFSET_SP] |
52 | stx %i7, [\r + OFFSET_PC] |
52 | stx %i7, [\r + OFFSET_PC] |
53 | .endm |
53 | .endm |
54 | 54 | ||
55 | .macro CONTEXT_LOAD r |
55 | .macro CONTEXT_LOAD r |
56 | ldx [\r + OFFSET_L0], %l0 |
56 | ldx [\r + OFFSET_L0], %l0 |
57 | ldx [\r + OFFSET_L1], %l1 |
57 | ldx [\r + OFFSET_L1], %l1 |
58 | ldx [\r + OFFSET_L2], %l2 |
58 | ldx [\r + OFFSET_L2], %l2 |
59 | ldx [\r + OFFSET_L3], %l3 |
59 | ldx [\r + OFFSET_L3], %l3 |
60 | ldx [\r + OFFSET_L4], %l4 |
60 | ldx [\r + OFFSET_L4], %l4 |
61 | ldx [\r + OFFSET_L5], %l5 |
61 | ldx [\r + OFFSET_L5], %l5 |
62 | ldx [\r + OFFSET_L6], %l6 |
62 | ldx [\r + OFFSET_L6], %l6 |
63 | ldx [\r + OFFSET_L7], %l7 |
63 | ldx [\r + OFFSET_L7], %l7 |
64 | ldx [\r + OFFSET_I1], %i1 |
64 | ldx [\r + OFFSET_I1], %i1 |
65 | ldx [\r + OFFSET_I2], %i2 |
65 | ldx [\r + OFFSET_I2], %i2 |
66 | ldx [\r + OFFSET_I3], %i3 |
66 | ldx [\r + OFFSET_I3], %i3 |
67 | ldx [\r + OFFSET_I4], %i4 |
67 | ldx [\r + OFFSET_I4], %i4 |
68 | ldx [\r + OFFSET_I5], %i5 |
68 | ldx [\r + OFFSET_I5], %i5 |
69 | ldx [\r + OFFSET_SP], %i6 |
69 | ldx [\r + OFFSET_SP], %i6 |
70 | ldx [\r + OFFSET_PC], %i7 |
70 | ldx [\r + OFFSET_PC], %i7 |
71 | ldx [\r + OFFSET_SP], %sp |
71 | ldx [\r + OFFSET_SP], %sp |
72 | .endm |
72 | .endm |
73 | 73 | ||
74 | 74 | ||
75 | context_save_arch: |
75 | context_save_arch: |
76 | save %sp, 0, %sp |
76 | save %sp, -128, %sp |
77 | CONTEXT_STORE %i0 |
77 | CONTEXT_STORE %i0 |
78 | 78 | ||
79 | # context_save returns 1 |
79 | # context_save returns 1 |
80 | mov 1, %i0 |
80 | mov 1, %i0 |
81 | ret |
81 | ret |
82 | restore %sp, 0, %sp |
82 | restore %sp, 128, %sp |
83 | 83 | ||
84 | context_restore_arch: |
84 | context_restore_arch: |
85 | save %sp, 0, %sp |
85 | save %sp, -128, %sp |
86 | CONTEXT_LOAD %i0 |
86 | CONTEXT_LOAD %i0 |
87 | 87 | ||
88 | # context_restore returns 0 |
88 | # context_restore returns 0 |
89 | xor %i0, %i0, %i0 |
89 | xor %i0, %i0, %i0 |
90 | ret |
90 | ret |
91 | restore %sp, 0, %sp |
91 | restore %sp, 128, %sp |
92 | 92 |