1// See LICENSE for license details. 2 3#ifndef _RISCV_BITS_H 4#define _RISCV_BITS_H 5 6#define likely(x) __builtin_expect((x), 1) 7#define unlikely(x) __builtin_expect((x), 0) 8 9#define ROUNDUP(a, b) ((((a)-1)/(b)+1)*(b)) 10#define ROUNDDOWN(a, b) ((a)/(b)*(b)) 11 12#define MAX(a, b) ((a) > (b) ? (a) : (b)) 13#define MIN(a, b) ((a) < (b) ? (a) : (b)) 14#define CLAMP(a, lo, hi) MIN(MAX(a, lo), hi) 15 16#define EXTRACT_FIELD(val, which) (((val) & (which)) / ((which) & ~((which)-1))) 17#define INSERT_FIELD(val, which, fieldval) (((val) & ~(which)) | ((fieldval) * ((which) & ~((which)-1)))) 18 19#define STR(x) XSTR(x) 20#define XSTR(x) #x 21 22#if __riscv_xlen == 64 23# define SLL32 sllw 24# define STORE sd 25# define LOAD ld 26# define LWU lwu 27# define LOG_REGBYTES 3 28#else 29# define SLL32 sll 30# define STORE sw 31# define LOAD lw 32# define LWU lw 33# define LOG_REGBYTES 2 34#endif 35#define REGBYTES (1 << LOG_REGBYTES) 36 37#endif 38