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22 lines
349 B
22 lines
349 B
/*
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* Copyright (c) Hisilicon Technologies Co., Ltd. 2020-2020. All rights reserved.
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* Description: bits.h
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* Author: SmartMedia_BSP
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* Create: 2020-06-23
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*/
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#ifndef BITSH
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#define BITSH
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#include <stddef.h>
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/* get the '1' count */
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int bits_count(uint32 nn);
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/* find first bit set. */
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int ffs(int nn);
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int ffs64(uint64 nn);
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#endif /* BITSH */
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