1 /* 2 Copyright (c) 2013, The Regents of the University of California (Regents). 3 All Rights Reserved. 4 5 Redistribution and use in source and binary forms, with or without 6 modification, are permitted provided that the following conditions are met: 7 1. Redistributions of source code must retain the above copyright 8 notice, this list of conditions and the following disclaimer. 9 2. Redistributions in binary form must reproduce the above copyright 10 notice, this list of conditions and the following disclaimer in the 11 documentation and/or other materials provided with the distribution. 12 3. Neither the name of the Regents nor the 13 names of its contributors may be used to endorse or promote products 14 derived from this software without specific prior written permission. 15 16 IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, 17 SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING 18 OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS 19 BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 20 21 REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 22 THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 PURPOSE. THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED 24 HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION TO PROVIDE 25 MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. 26 */ 27 28 /*********************************************************************************** 29 * Record of Microchip changes 30 */ 31 #ifndef RISCV_BITS_H 32 #define RISCV_BITS_H 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 #define likely(x) __builtin_expect((x), 1) 39 #define unlikely(x) __builtin_expect((x), 0) 40 41 #define ROUNDUP(a, b) ((((a)-1)/(b)+1)*(b)) 42 #define ROUNDDOWN(a, b) ((a)/(b)*(b)) 43 44 #define MAX(a, b) ((a) > (b) ? (a) : (b)) 45 #define MIN(a, b) ((a) < (b) ? (a) : (b)) 46 #define CLAMP(a, lo, hi) MIN(MAX(a, lo), hi) 47 48 #define EXTRACT_FIELD(val, which) (((val) & (which)) / ((which) & ~((which)-1))) 49 #define INSERT_FIELD(val, which, fieldval) (((val) & ~(which)) | ((fieldval) * ((which) & ~((which)-1)))) 50 51 #define STR(x) XSTR(x) 52 #define XSTR(x) #x 53 54 #if __riscv_xlen == 64 55 # define SLL32 sllw 56 # define STORE sd 57 # define LOAD ld 58 # define LWU lwu 59 # define LOG_REGBYTES 3 60 #else 61 # define SLL32 sll 62 # define STORE sw 63 # define LOAD lw 64 # define LWU lw 65 # define LOG_REGBYTES 2 66 #endif 67 #define REGBYTES (1 << LOG_REGBYTES) 68 69 #ifdef __cplusplus 70 } 71 #endif 72 73 #endif //RISCV_BITS_H 74
