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35 lines
997 B
C
35 lines
997 B
C
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/*
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* Copyright (c) 2009 by Takashi YOSHII. All rights reserved.
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*
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*
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* THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
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* OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
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*
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* Permission is hereby granted to use or copy this program
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* for any purpose, provided the above notices are retained on all copies.
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* Permission to modify the code and to distribute modified code is granted,
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* provided the above notices are retained, and a notice that the code was
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* modified is included with the above copyright notice.
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*/
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#include "../all_atomic_load_store.h"
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#include "../ordered.h"
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/* sh has tas.b(byte) only */
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#include "../test_and_set_t_is_char.h"
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AO_INLINE AO_TS_VAL_t
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AO_test_and_set_full(volatile AO_TS_t *addr)
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{
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int oldval;
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__asm__ __volatile__(
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"tas.b @%1; movt %0"
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: "=r" (oldval)
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: "r" (addr)
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: "t", "memory");
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return oldval? AO_TS_CLEAR : AO_TS_SET;
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}
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#define AO_HAVE_test_and_set_full
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/* TODO: Very incomplete. */
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