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