2 * Copyright (c) 2003 Hewlett-Packard Development Company, L.P.
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
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8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
23 /* Definitions for architectures on which loads and stores of AO_t are */
24 /* atomic for all legal alignments. */
27 AO_load(const volatile AO_t *addr)
29 /* Cast away the volatile for architectures like IA64 where */
30 /* volatile adds barrier semantics. */
31 return (*(const AO_t *)addr);
36 AO_store(volatile AO_t *addr, AO_t new_val)
38 (*(AO_t *)addr) = new_val;