1 /*
2  * Copyright (c) 2006-2024, RT-Thread Development Team
3  *
4  * SPDX-License-Identifier: Apache-2.0
5  *
6  * Change Logs:
7  * Date           Author       Notes
8  * 2021-01-30     lizhirui     first version
9  * 2024-08-28     RT-Thread    Fit into rv64ilp32 ABI
10  */
11 
12 #ifndef __RISCV_H__
13 #define __RISCV_H__
14 
15 #include <encoding.h>
16 
17 /* using unsigned long long for the case of rv64ilp32 */
18 #define __SIZE(bit) (1ULL << (bit))
19 #define __MASK(bit) (__SIZE(bit) - 1ULL)
20 
21 #define __UMASK(bit) (~(__MASK(bit)))
22 #define __MASKVALUE(value,maskvalue) ((value) & (maskvalue))
23 #define __UMASKVALUE(value,maskvalue) ((value) & (~(maskvalue)))
24 #define __CHECKUPBOUND(value,bit_count) (!(((rt_ubase_t)value) & (~__MASK(bit_count))))
25 #define __CHECKALIGN(value,start_bit) (!(((rt_ubase_t)value) & (__MASK(start_bit))))
26 
27 #define __PARTBIT(value,start_bit,length) (((value) >> (start_bit)) & __MASK(length))
28 
29 #define __ALIGNUP(value,bit) (((value) + __MASK(bit)) & __UMASK(bit))
30 #define __ALIGNDOWN(value,bit) ((value) & __UMASK(bit))
31 
32 #endif
33