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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 | #include <memstr.h> |
29 | #include <memstr.h> |
30 | #include <arch/types.h> |
30 | #include <arch/types.h> |
31 | 31 | ||
- | 32 | ||
- | 33 | /** Copy block of memory |
|
- | 34 | * |
|
- | 35 | * Copy cnt bytes from src address to dst address. |
|
- | 36 | * The copying is done byte-by-byte. The source |
|
- | 37 | * and destination memory areas cannot overlap. |
|
- | 38 | * |
|
- | 39 | * @param src Origin address to copy from. |
|
- | 40 | * @param dst Origin address to copy to. |
|
- | 41 | * @param cnt Number of bytes to copy. |
|
- | 42 | * |
|
- | 43 | */ |
|
32 | void _memcopy(__address src, __address dst, int cnt) |
44 | void _memcopy(__address src, __address dst, int cnt) |
33 | { |
45 | { |
34 | int i; |
46 | int i; |
35 | 47 | ||
36 | for (i=0; i<cnt; i++) |
48 | for (i=0; i<cnt; i++) |
37 | *((__u8 *) (dst + i)) = *((__u8 *) (src + i)); |
49 | *((__u8 *) (dst + i)) = *((__u8 *) (src + i)); |
38 | } |
50 | } |
39 | 51 | ||
- | 52 | ||
- | 53 | /** Fill block of memory |
|
- | 54 | * |
|
- | 55 | * Fill cnt bytes at dst address with the value x. |
|
- | 56 | * The filling is done byte-by-byte. |
|
- | 57 | * |
|
- | 58 | * @param dst Origin address to fill. |
|
- | 59 | * @param cnt Number of bytes to fill. |
|
- | 60 | * @param x Value to fill. |
|
- | 61 | * |
|
- | 62 | */ |
|
40 | void _memsetb(__address dst, int cnt, __u8 x) |
63 | void _memsetb(__address dst, int cnt, __u8 x) |
41 | { |
64 | { |
42 | int i; |
65 | int i; |
43 | __u8 *p = (__u8 *) dst; |
66 | __u8 *p = (__u8 *) dst; |
44 | 67 | ||
45 | for(i=0; i<cnt; i++) |
68 | for(i=0; i<cnt; i++) |
46 | p[i] = x; |
69 | p[i] = x; |
47 | } |
70 | } |
48 | 71 |