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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 | 32 | ||
| 33 | /** Copy block of memory |
33 | /** Copy block of memory |
| 34 | * |
34 | * |
| 35 | * Copy cnt bytes from src address to dst address. |
35 | * Copy cnt bytes from src address to dst address. |
| 36 | * The copying is done byte-by-byte. The source |
36 | * The copying is done byte-by-byte. The source |
| 37 | * and destination memory areas cannot overlap. |
37 | * and destination memory areas cannot overlap. |
| 38 | * |
38 | * |
| 39 | * @param src Origin address to copy from. |
39 | * @param src Origin address to copy from. |
| 40 | * @param dst Origin address to copy to. |
40 | * @param dst Origin address to copy to. |
| 41 | * @param cnt Number of bytes to copy. |
41 | * @param cnt Number of bytes to copy. |
| 42 | * |
42 | * |
| 43 | */ |
43 | */ |
| - | 44 | ||
| - | 45 | char * _memcopy(void * dst,const void *src, size_t cnt); |
|
| 44 | void _memcopy(__address src, __address dst, size_t cnt) |
46 | char * _memcopy(void * dst,const void *src, size_t cnt) |
| 45 | { |
47 | { |
| 46 | int i; |
48 | int i; |
| 47 | 49 | ||
| 48 | for (i=0; i<cnt; i++) |
50 | for (i=0; i<cnt; i++) |
| 49 | *((__u8 *) (dst + i)) = *((__u8 *) (src + i)); |
51 | *((__u8 *) (dst + i)) = *((__u8 *) (src + i)); |
| - | 52 | ||
| - | 53 | return (char *)src; |
|
| 50 | } |
54 | } |
| 51 | 55 | ||
| 52 | 56 | ||
| 53 | /** Fill block of memory |
57 | /** Fill block of memory |
| 54 | * |
58 | * |
| 55 | * Fill cnt bytes at dst address with the value x. |
59 | * Fill cnt bytes at dst address with the value x. |
| 56 | * The filling is done byte-by-byte. |
60 | * The filling is done byte-by-byte. |
| 57 | * |
61 | * |
| 58 | * @param dst Origin address to fill. |
62 | * @param dst Origin address to fill. |
| 59 | * @param cnt Number of bytes to fill. |
63 | * @param cnt Number of bytes to fill. |
| 60 | * @param x Value to fill. |
64 | * @param x Value to fill. |
| 61 | * |
65 | * |
| 62 | */ |
66 | */ |
| 63 | void _memsetb(__address dst, size_t cnt, __u8 x) |
67 | void _memsetb(__address dst, size_t cnt, __u8 x) |
| 64 | { |
68 | { |
| 65 | int i; |
69 | int i; |
| 66 | __u8 *p = (__u8 *) dst; |
70 | __u8 *p = (__u8 *) dst; |
| 67 | 71 | ||
| 68 | for(i=0; i<cnt; i++) |
72 | for(i=0; i<cnt; i++) |
| 69 | p[i] = x; |
73 | p[i] = x; |
| 70 | } |
74 | } |
| 71 | 75 | ||