| 1 | /*
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| 2 | * Copyright (c) 2001-2004 Jakub Jermar
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| 3 | * Copyright (c) 2008 Jiri Svoboda
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| 4 | * All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | *
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| 10 | * - Redistributions of source code must retain the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer.
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| 12 | * - Redistributions in binary form must reproduce the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer in the
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| 14 | * documentation and/or other materials provided with the distribution.
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| 15 | * - The name of the author may not be used to endorse or promote products
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| 16 | * derived from this software without specific prior written permission.
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| 17 | *
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 28 | */
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| 29 |
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| 30 | /** @addtogroup kernel_generic
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| 31 | * @{
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| 32 | */
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| 33 |
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| 34 | /**
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| 35 | * @file
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| 36 | * @brief Memory string operations.
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| 37 | *
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| 38 | * This file provides architecture independent functions to manipulate blocks
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| 39 | * of memory. These functions are optimized as much as generic functions of
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| 40 | * this type can be.
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| 41 | */
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| 42 |
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| 43 | #include <memw.h>
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| 44 | #include <typedefs.h>
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| 45 |
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| 46 | /** Fill block of memory.
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| 47 | *
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| 48 | * Fill cnt bytes at dst address with the value val.
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| 49 | *
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| 50 | * @param dst Destination address to fill.
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| 51 | * @param cnt Number of bytes to fill.
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| 52 | * @param val Value to fill.
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| 53 | *
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| 54 | */
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| 55 | void memsetb(void *dst, size_t cnt, uint8_t val)
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| 56 | {
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| 57 | memset(dst, val, cnt);
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| 58 | }
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| 59 |
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| 60 | /** Fill block of memory.
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| 61 | *
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| 62 | * Fill cnt words at dst address with the value val. The filling
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| 63 | * is done word-by-word.
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| 64 | *
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| 65 | * @param dst Destination address to fill.
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| 66 | * @param cnt Number of words to fill.
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| 67 | * @param val Value to fill.
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| 68 | *
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| 69 | */
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| 70 | void memsetw(void *dst, size_t cnt, uint16_t val)
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| 71 | {
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| 72 | size_t i;
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| 73 | uint16_t *ptr = (uint16_t *) dst;
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| 74 |
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| 75 | for (i = 0; i < cnt; i++)
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| 76 | ptr[i] = val;
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| 77 | }
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| 78 |
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| 79 | /** @}
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| 80 | */
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