1 /* 2 * Copyright(c) 2019-2021 Qualcomm Innovation Center, Inc. All Rights Reserved. 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, see <http://www.gnu.org/licenses/>. 16 */ 17 18 #ifndef HEXAGON_CPU_BITS_H 19 #define HEXAGON_CPU_BITS_H 20 21 #include "qemu/bitops.h" 22 23 #define HEX_EXCP_FETCH_NO_UPAGE 0x012 24 #define HEX_EXCP_INVALID_PACKET 0x015 25 #define HEX_EXCP_INVALID_OPCODE 0x015 26 #define HEX_EXCP_PRIV_NO_UREAD 0x024 27 #define HEX_EXCP_PRIV_NO_UWRITE 0x025 28 29 #define HEX_EXCP_TRAP0 0x172 30 31 #define PACKET_WORDS_MAX 4 32 33 static inline uint32_t parse_bits(uint32_t encoding) 34 { 35 /* The parse bits are [15:14] */ 36 return extract32(encoding, 14, 2); 37 } 38 39 static inline uint32_t iclass_bits(uint32_t encoding) 40 { 41 /* The instruction class is encoded in bits [31:28] */ 42 uint32_t iclass = extract32(encoding, 28, 4); 43 /* If parse bits are zero, this is a duplex */ 44 if (parse_bits(encoding) == 0) { 45 iclass += 16; 46 } 47 return iclass; 48 } 49 50 static inline int is_packet_end(uint32_t endocing) 51 { 52 uint32_t bits = parse_bits(endocing); 53 return ((bits == 0x3) || (bits == 0x0)); 54 } 55 56 int disassemble_hexagon(uint32_t *words, int nwords, bfd_vma pc, GString *buf); 57 58 #endif 59