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30 lines
902 B
30 lines
902 B
5 months ago
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/*
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* Copyright (c) 2006-2021, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2021-01-30 lizhirui first version
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*/
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#ifndef __RISCV_H__
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#define __RISCV_H__
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#include <encoding.h>
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#define __SIZE(bit) (1UL << (bit))
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#define __MASK(bit) (__SIZE(bit) - 1UL)
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#define __UMASK(bit) (~(__MASK(bit)))
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#define __MASKVALUE(value,maskvalue) ((value) & (maskvalue))
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#define __UMASKVALUE(value,maskvalue) ((value) & (~(maskvalue)))
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#define __CHECKUPBOUND(value,bit_count) (!(((rt_size_t)value) & (~__MASK(bit_count))))
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#define __CHECKALIGN(value,start_bit) (!(((rt_size_t)value) & (__MASK(start_bit))))
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#define __PARTBIT(value,start_bit,length) (((value) >> (start_bit)) & __MASK(length))
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#define __ALIGNUP(value,bit) (((value) + __MASK(bit)) & __UMASK(bit))
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#define __ALIGNDOWN(value,bit) ((value) & __UMASK(bit))
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#endif
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