Rev 1773 | Rev 1783 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
Rev 1773 | Rev 1778 | ||
---|---|---|---|
1 | # |
1 | # |
2 | # Copyright (C) 2006 Martin Decky |
2 | # Copyright (C) 2006 Martin Decky |
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 halt |
31 | .global halt |
32 | .global memcpy |
32 | .global memcpy |
33 | .global jump_to_kernel |
33 | .global jump_to_kernel |
34 | 34 | ||
35 | halt: |
35 | halt: |
36 | b halt |
36 | b halt |
37 | nop |
37 | nop |
38 | 38 | ||
39 | memcpy: |
39 | memcpy: |
40 | .register %g2, #scratch |
40 | .register %g2, #scratch |
41 | .register %g3, #scratch |
41 | .register %g3, #scratch |
42 | add %o1, 7, %g1 |
42 | add %o1, 7, %g1 |
43 | and %g1, -8, %g1 |
43 | and %g1, -8, %g1 |
44 | cmp %o1, %g1 |
44 | cmp %o1, %g1 |
45 | be,pn %xcc, 3f |
45 | be,pn %xcc, 3f |
46 | add %o0, 7, %g1 |
46 | add %o0, 7, %g1 |
47 | mov 0, %g3 |
47 | mov 0, %g3 |
48 | 0: |
48 | 0: |
49 | brz,pn %o2, 2f |
49 | brz,pn %o2, 2f |
50 | mov 0, %g2 |
50 | mov 0, %g2 |
51 | 1: |
51 | 1: |
52 | ldub [%g3 + %o1], %g1 |
52 | ldub [%g3 + %o1], %g1 |
53 | add %g2, 1, %g2 |
53 | add %g2, 1, %g2 |
54 | cmp %o2, %g2 |
54 | cmp %o2, %g2 |
55 | stb %g1, [%g3 + %o0] |
55 | stb %g1, [%g3 + %o0] |
56 | bne,pt %xcc, 1b |
56 | bne,pt %xcc, 1b |
57 | mov %g2, %g3 |
57 | mov %g2, %g3 |
58 | 2: |
58 | 2: |
59 | jmp %o7 + 8 ! exit point |
59 | jmp %o7 + 8 ! exit point |
60 | mov %o1, %o0 |
60 | mov %o1, %o0 |
61 | 3: |
61 | 3: |
62 | and %g1, -8, %g1 |
62 | and %g1, -8, %g1 |
63 | cmp %o0, %g1 |
63 | cmp %o0, %g1 |
64 | bne,pt %xcc, 0b |
64 | bne,pt %xcc, 0b |
65 | mov 0, %g3 |
65 | mov 0, %g3 |
66 | srlx %o2, 3, %g4 |
66 | srlx %o2, 3, %g4 |
67 | brz,pn %g4, 5f |
67 | brz,pn %g4, 5f |
68 | mov 0, %g5 |
68 | mov 0, %g5 |
69 | 4: |
69 | 4: |
70 | sllx %g3, 3, %g2 |
70 | sllx %g3, 3, %g2 |
71 | add %g5, 1, %g3 |
71 | add %g5, 1, %g3 |
72 | ldx [%o1 + %g2], %g1 |
72 | ldx [%o1 + %g2], %g1 |
73 | mov %g3, %g5 |
73 | mov %g3, %g5 |
74 | cmp %g4, %g3 |
74 | cmp %g4, %g3 |
75 | bne,pt %xcc, 4b |
75 | bne,pt %xcc, 4b |
76 | stx %g1, [%o0 + %g2] |
76 | stx %g1, [%o0 + %g2] |
77 | 5: |
77 | 5: |
78 | and %o2, 7, %o2 |
78 | and %o2, 7, %o2 |
79 | brz,pn %o2, 2b |
79 | brz,pn %o2, 2b |
80 | sllx %g4, 3, %g1 |
80 | sllx %g4, 3, %g1 |
81 | mov 0, %g2 |
81 | mov 0, %g2 |
82 | add %g1, %o0, %o0 |
82 | add %g1, %o0, %o0 |
83 | add %g1, %o1, %g4 |
83 | add %g1, %o1, %g4 |
84 | mov 0, %g3 |
84 | mov 0, %g3 |
85 | 6: |
85 | 6: |
86 | ldub [%g2 + %g4], %g1 |
86 | ldub [%g2 + %g4], %g1 |
87 | stb %g1, [%g2 + %o0] |
87 | stb %g1, [%g2 + %o0] |
88 | add %g3, 1, %g2 |
88 | add %g3, 1, %g2 |
89 | cmp %o2, %g2 |
89 | cmp %o2, %g2 |
90 | bne,pt %xcc, 6b |
90 | bne,pt %xcc, 6b |
91 | mov %g2, %g3 |
91 | mov %g2, %g3 |
92 | 92 | ||
93 | jmp %o7 + 8 ! exit point |
93 | jmp %o7 + 8 ! exit point |
94 | mov %o1, %o0 |
94 | mov %o1, %o0 |
95 | 95 | ||
96 | jump_to_kernel: |
96 | jump_to_kernel: |
- | 97 | set ofw, %l0 |
|
97 | b jump_to_kernel |
98 | jmp %o0 ! jump to kernel |
98 | nop |
- | |
- | 99 | ldx [%l0], %o4 ! pass OpenFirmware address in %o4 |
|
99 | 100 | ||
100 | - | ||
101 |
|
- | |
102 | - | ||
103 | - | ||
104 | - |