1 // See LICENSE for license details.
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2 #ifndef _RISCV_BITS_H
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3 #define _RISCV_BITS_H
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5 #define likely(x) __builtin_expect((x), 1)
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6 #define unlikely(x) __builtin_expect((x), 0)
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8 #define ROUNDUP(a, b) ((((a)-1)/(b)+1)*(b))
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9 #define ROUNDDOWN(a, b) ((a)/(b)*(b))
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11 #define MAX(a, b) ((a) > (b) ? (a) : (b))
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12 #define MIN(a, b) ((a) < (b) ? (a) : (b))
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13 #define CLAMP(a, lo, hi) MIN(MAX(a, lo), hi)
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15 #define EXTRACT_FIELD(val, which) (((val) & (which)) / ((which) & ~((which)-1)))
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16 #define INSERT_FIELD(val, which, fieldval) (((val) & ~(which)) | ((fieldval) * ((which) & ~((which)-1))))
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18 #define STR(x) XSTR(x)
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21 #if __riscv_xlen == 64
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26 # define LOG_REGBYTES 3
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32 # define LOG_REGBYTES 2
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34 #define REGBYTES (1 << LOG_REGBYTES)
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