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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 | #include <arch/stack.h> |
29 | #include <arch/stack.h> |
30 | #include <arch/regdef.h> |
30 | #include <arch/regdef.h> |
31 | 31 | ||
32 | .text |
32 | .text |
33 | 33 | ||
34 | .global memcpy |
34 | .global memcpy |
35 | .global memcpy_from_uspace |
35 | .global memcpy_from_uspace |
36 | .global memcpy_to_uspace |
36 | .global memcpy_to_uspace |
37 | .global memcpy_from_uspace_failover_address |
37 | .global memcpy_from_uspace_failover_address |
38 | .global memcpy_to_uspace_failover_address |
38 | .global memcpy_to_uspace_failover_address |
39 | .global memsetb |
39 | .global memsetb |
40 | 40 | ||
41 | 41 | ||
42 | memcpy: |
42 | memcpy: |
43 | memcpy_from_uspace: |
43 | memcpy_from_uspace: |
44 | memcpy_to_uspace: |
44 | memcpy_to_uspace: |
- | 45 | .register %g2, #scratch |
|
- | 46 | .register %g3, #scratch |
|
- | 47 | add %o1, 7, %g1 |
|
- | 48 | and %g1, -8, %g1 |
|
- | 49 | cmp %o1, %g1 |
|
- | 50 | be,pn %xcc, 3f |
|
- | 51 | add %o0, 7, %g1 |
|
- | 52 | mov 0, %g3 |
|
- | 53 | 0: |
|
- | 54 | brz,pn %o2, 2f |
|
- | 55 | mov 0, %g2 |
|
- | 56 | 1: |
|
- | 57 | ldub [%g3 + %o1], %g1 |
|
- | 58 | add %g2, 1, %g2 |
|
- | 59 | cmp %o2, %g2 |
|
- | 60 | stb %g1, [%g3 + %o0] |
|
- | 61 | bne,pt %xcc, 1b |
|
- | 62 | mov %g2, %g3 |
|
- | 63 | 2: |
|
- | 64 | jmp %o7 + 8 ! exit point |
|
- | 65 | mov %o1, %o0 |
|
- | 66 | 3: |
|
- | 67 | and %g1, -8, %g1 |
|
- | 68 | cmp %o0, %g1 |
|
- | 69 | bne,pt %xcc, 0b |
|
- | 70 | mov 0, %g3 |
|
- | 71 | srlx %o2, 3, %g4 |
|
- | 72 | brz,pn %g4, 5f |
|
- | 73 | mov 0, %g5 |
|
- | 74 | 4: |
|
- | 75 | sllx %g3, 3, %g2 |
|
- | 76 | add %g5, 1, %g3 |
|
- | 77 | ldx [%o1 + %g2], %g1 |
|
- | 78 | mov %g3, %g5 |
|
- | 79 | cmp %g4, %g3 |
|
- | 80 | bne,pt %xcc, 4b |
|
- | 81 | stx %g1, [%o0 + %g2] |
|
- | 82 | 5: |
|
- | 83 | and %o2, 7, %o2 |
|
- | 84 | brz,pn %o2, 2b |
|
- | 85 | sllx %g4, 3, %g1 |
|
- | 86 | mov 0, %g2 |
|
- | 87 | add %g1, %o0, %o0 |
|
- | 88 | add %g1, %o1, %g4 |
|
- | 89 | mov 0, %g3 |
|
- | 90 | 6: |
|
- | 91 | ldub [%g2 + %g4], %g1 |
|
- | 92 | stb %g1, [%g2 + %o0] |
|
- | 93 | add %g3, 1, %g2 |
|
- | 94 | cmp %o2, %g2 |
|
- | 95 | bne,pt %xcc, 6b |
|
- | 96 | mov %g2, %g3 |
|
45 | 97 | ||
46 | b _memcpy |
98 | jmp %o7 + 8 ! exit point |
47 | nop |
99 | mov %o1, %o0 |
48 | 100 | ||
49 | memcpy_from_uspace_failover_address: |
101 | memcpy_from_uspace_failover_address: |
50 | memcpy_to_uspace_failover_address: |
102 | memcpy_to_uspace_failover_address: |
51 | b memcpy_from_uspace_failover_address |
103 | jmp %o7 + 8 ! exit point |
52 | nop |
104 | mov %g0, %o0 ! return 0 on failure |
53 | 105 | ||
54 | memsetb: |
106 | memsetb: |
55 | b _memsetb |
107 | b _memsetb |
56 | nop |
108 | nop |
57 | - | ||
58 | .global ofw |
- | |
59 | ofw: |
- | |
60 | save %sp, -STACK_WINDOW_SAVE_AREA_SIZE, %sp |
- | |
61 | set ofw_cif, %l0 |
- | |
62 | ldx [%l0], %l0 |
- | |
63 | - | ||
64 | rdpr %pstate, %l1 |
- | |
65 | and %l1, ~PSTATE_AM_BIT, %l2 |
- | |
66 | wrpr %l2, 0, %pstate |
- | |
67 | - | ||
68 | jmpl %l0, %o7 |
- | |
69 | mov %i0, %o0 |
- | |
70 | - | ||
71 | wrpr %l1, 0, %pstate |
- | |
72 | - | ||
73 | ret |
- | |
74 | restore %o0, 0, %o0 |
- | |
75 | 109 | ||
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