Rev 360 | Rev 501 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1 | jermar | 1 | /* |
| 2 | * Copyright (C) 2001-2004 Jakub Jermar |
||
| 3 | * All rights reserved. |
||
| 4 | * |
||
| 5 | * Redistribution and use in source and binary forms, with or without |
||
| 6 | * modification, are permitted provided that the following conditions |
||
| 7 | * are met: |
||
| 8 | * |
||
| 9 | * - Redistributions of source code must retain the above copyright |
||
| 10 | * notice, this list of conditions and the following disclaimer. |
||
| 11 | * - Redistributions in binary form must reproduce the above copyright |
||
| 12 | * notice, this list of conditions and the following disclaimer in the |
||
| 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 |
||
| 15 | * derived from this software without specific prior written permission. |
||
| 16 | * |
||
| 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 |
||
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
| 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 |
||
| 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 |
||
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
| 27 | */ |
||
| 28 | |||
| 29 | #include <memstr.h> |
||
| 30 | #include <arch/types.h> |
||
| 31 | |||
| 62 | decky | 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 | */ |
||
| 360 | jermar | 44 | void *_memcpy(void * dst, const void *src, size_t cnt) |
| 1 | jermar | 45 | { |
| 46 | int i; |
||
| 47 | |||
| 48 | for (i=0; i<cnt; i++) |
||
| 49 | *((__u8 *) (dst + i)) = *((__u8 *) (src + i)); |
||
| 195 | vana | 50 | |
| 51 | return (char *)src; |
||
| 1 | jermar | 52 | } |
| 53 | |||
| 62 | decky | 54 | /** Fill block of memory |
| 55 | * |
||
| 56 | * Fill cnt bytes at dst address with the value x. |
||
| 57 | * The filling is done byte-by-byte. |
||
| 58 | * |
||
| 59 | * @param dst Origin address to fill. |
||
| 60 | * @param cnt Number of bytes to fill. |
||
| 61 | * @param x Value to fill. |
||
| 62 | * |
||
| 63 | */ |
||
| 72 | decky | 64 | void _memsetb(__address dst, size_t cnt, __u8 x) |
| 1 | jermar | 65 | { |
| 66 | int i; |
||
| 67 | __u8 *p = (__u8 *) dst; |
||
| 68 | |||
| 69 | for(i=0; i<cnt; i++) |
||
| 70 | p[i] = x; |
||
| 71 | } |
||
| 200 | palkovsky | 72 | |
| 73 | /** Fill block of memory |
||
| 74 | * |
||
| 75 | * Fill cnt words at dst address with the value x. |
||
| 76 | * The filling is done word-by-word. |
||
| 77 | * |
||
| 78 | * @param dst Origin address to fill. |
||
| 79 | * @param cnt Number of words to fill. |
||
| 80 | * @param x Value to fill. |
||
| 81 | * |
||
| 82 | */ |
||
| 83 | void _memsetw(__address dst, size_t cnt, __u16 x) |
||
| 84 | { |
||
| 85 | int i; |
||
| 202 | palkovsky | 86 | __u16 *p = (__u16 *) dst; |
| 200 | palkovsky | 87 | |
| 88 | for(i=0; i<cnt; i++) |
||
| 89 | p[i] = x; |
||
| 90 | } |