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      1 /* Altera Nios II opcode list.
      2    Copyright (C) 2012-2014 Free Software Foundation, Inc.
      3    Contributed by Nigel Gray (ngray (at) altera.com).
      4    Contributed by Mentor Graphics, Inc.
      5 
      6    This file is part of the GNU opcodes library.
      7 
      8    This library is free software; you can redistribute it and/or modify
      9    it under the terms of the GNU General Public License as published by
     10    the Free Software Foundation; either version 3, or (at your option)
     11    any later version.
     12 
     13    It is distributed in the hope that it will be useful, but WITHOUT
     14    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
     15    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
     16    License for more details.
     17 
     18    You should have received a copy of the GNU General Public License
     19    along with this file; see the file COPYING.  If not, write to the
     20    Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
     21    MA 02110-1301, USA.  */
     22 
     23 #include "sysdep.h"
     24 #include <stdio.h>
     25 #include "opcode/nios2.h"
     26 
     27 /* Register string table */
     28 
     29 const struct nios2_reg nios2_builtin_regs[] = {
     30   /* Standard register names.  */
     31   {"zero", 0, REG_NORMAL},
     32   {"at", 1, REG_NORMAL},			/* assembler temporary */
     33   {"r2", 2, REG_NORMAL},
     34   {"r3", 3, REG_NORMAL},
     35   {"r4", 4, REG_NORMAL},
     36   {"r5", 5, REG_NORMAL},
     37   {"r6", 6, REG_NORMAL},
     38   {"r7", 7, REG_NORMAL},
     39   {"r8", 8, REG_NORMAL},
     40   {"r9", 9, REG_NORMAL},
     41   {"r10", 10, REG_NORMAL},
     42   {"r11", 11, REG_NORMAL},
     43   {"r12", 12, REG_NORMAL},
     44   {"r13", 13, REG_NORMAL},
     45   {"r14", 14, REG_NORMAL},
     46   {"r15", 15, REG_NORMAL},
     47   {"r16", 16, REG_NORMAL},
     48   {"r17", 17, REG_NORMAL},
     49   {"r18", 18, REG_NORMAL},
     50   {"r19", 19, REG_NORMAL},
     51   {"r20", 20, REG_NORMAL},
     52   {"r21", 21, REG_NORMAL},
     53   {"r22", 22, REG_NORMAL},
     54   {"r23", 23, REG_NORMAL},
     55   {"et", 24, REG_NORMAL},
     56   {"bt", 25, REG_NORMAL},
     57   {"gp", 26, REG_NORMAL},			/* global pointer */
     58   {"sp", 27, REG_NORMAL},			/* stack pointer */
     59   {"fp", 28, REG_NORMAL},			/* frame pointer */
     60   {"ea", 29, REG_NORMAL},			/* exception return address */
     61   {"sstatus", 30, REG_NORMAL},			/* saved processor status */
     62   {"ra", 31, REG_NORMAL},			/* return address */
     63 
     64   /* Alternative names for special registers.  */
     65   {"r0", 0, REG_NORMAL},
     66   {"r1", 1, REG_NORMAL},
     67   {"r24", 24, REG_NORMAL},
     68   {"r25", 25, REG_NORMAL},
     69   {"r26", 26, REG_NORMAL},
     70   {"r27", 27, REG_NORMAL},
     71   {"r28", 28, REG_NORMAL},
     72   {"r29", 29, REG_NORMAL},
     73   {"r30", 30, REG_NORMAL},
     74   {"ba", 30, REG_NORMAL},			/* breakpoint return address */
     75   {"r31", 31, REG_NORMAL},
     76 
     77   /* Control register names.  */
     78   {"status", 0, REG_CONTROL},
     79   {"estatus", 1, REG_CONTROL},
     80   {"bstatus", 2, REG_CONTROL},
     81   {"ienable", 3, REG_CONTROL},
     82   {"ipending", 4, REG_CONTROL},
     83   {"cpuid", 5, REG_CONTROL},
     84   {"ctl6", 6, REG_CONTROL},
     85   {"exception", 7, REG_CONTROL},
     86   {"pteaddr", 8, REG_CONTROL},
     87   {"tlbacc", 9, REG_CONTROL},
     88   {"tlbmisc", 10, REG_CONTROL},
     89   {"eccinj", 11, REG_CONTROL},
     90   {"badaddr", 12, REG_CONTROL},
     91   {"config", 13, REG_CONTROL},
     92   {"mpubase", 14, REG_CONTROL},
     93   {"mpuacc", 15, REG_CONTROL},
     94   {"ctl16", 16, REG_CONTROL},
     95   {"ctl17", 17, REG_CONTROL},
     96   {"ctl18", 18, REG_CONTROL},
     97   {"ctl19", 19, REG_CONTROL},
     98   {"ctl20", 20, REG_CONTROL},
     99   {"ctl21", 21, REG_CONTROL},
    100   {"ctl22", 22, REG_CONTROL},
    101   {"ctl23", 23, REG_CONTROL},
    102   {"ctl24", 24, REG_CONTROL},
    103   {"ctl25", 25, REG_CONTROL},
    104   {"ctl26", 26, REG_CONTROL},
    105   {"ctl27", 27, REG_CONTROL},
    106   {"ctl28", 28, REG_CONTROL},
    107   {"ctl29", 29, REG_CONTROL},
    108   {"ctl30", 30, REG_CONTROL},
    109   {"ctl31", 31, REG_CONTROL},
    110 
    111   /* Alternative names for special control registers.  */
    112   {"ctl0", 0, REG_CONTROL},
    113   {"ctl1", 1, REG_CONTROL},
    114   {"ctl2", 2, REG_CONTROL},
    115   {"ctl3", 3, REG_CONTROL},
    116   {"ctl4", 4, REG_CONTROL},
    117   {"ctl5", 5, REG_CONTROL},
    118   {"ctl7", 7, REG_CONTROL},
    119   {"ctl8", 8, REG_CONTROL},
    120   {"ctl9", 9, REG_CONTROL},
    121   {"ctl10", 10, REG_CONTROL},
    122   {"ctl11", 11, REG_CONTROL},
    123   {"ctl12", 12, REG_CONTROL},
    124   {"ctl13", 13, REG_CONTROL},
    125   {"ctl14", 14, REG_CONTROL},
    126   {"ctl15", 15, REG_CONTROL},
    127 
    128   /* Coprocessor register names.  */
    129   {"c0", 0, REG_COPROCESSOR},
    130   {"c1", 1, REG_COPROCESSOR},
    131   {"c2", 2, REG_COPROCESSOR},
    132   {"c3", 3, REG_COPROCESSOR},
    133   {"c4", 4, REG_COPROCESSOR},
    134   {"c5", 5, REG_COPROCESSOR},
    135   {"c6", 6, REG_COPROCESSOR},
    136   {"c7", 7, REG_COPROCESSOR},
    137   {"c8", 8, REG_COPROCESSOR},
    138   {"c9", 9, REG_COPROCESSOR},
    139   {"c10", 10, REG_COPROCESSOR},
    140   {"c11", 11, REG_COPROCESSOR},
    141   {"c12", 12, REG_COPROCESSOR},
    142   {"c13", 13, REG_COPROCESSOR},
    143   {"c14", 14, REG_COPROCESSOR},
    144   {"c15", 15, REG_COPROCESSOR},
    145   {"c16", 16, REG_COPROCESSOR},
    146   {"c17", 17, REG_COPROCESSOR},
    147   {"c18", 18, REG_COPROCESSOR},
    148   {"c19", 19, REG_COPROCESSOR},
    149   {"c20", 20, REG_COPROCESSOR},
    150   {"c21", 21, REG_COPROCESSOR},
    151   {"c22", 22, REG_COPROCESSOR},
    152   {"c23", 23, REG_COPROCESSOR},
    153   {"c24", 24, REG_COPROCESSOR},
    154   {"c25", 25, REG_COPROCESSOR},
    155   {"c26", 26, REG_COPROCESSOR},
    156   {"c27", 27, REG_COPROCESSOR},
    157   {"c28", 28, REG_COPROCESSOR},
    158   {"c29", 29, REG_COPROCESSOR},
    159   {"c30", 30, REG_COPROCESSOR},
    160   {"c31", 31, REG_COPROCESSOR},
    161 };
    162 
    163 #define NIOS2_NUM_REGS \
    164        ((sizeof nios2_builtin_regs) / (sizeof (nios2_builtin_regs[0])))
    165 const int nios2_num_builtin_regs = NIOS2_NUM_REGS;
    166 
    167 /* This is not const in order to allow for dynamic extensions to the
    168    built-in instruction set.  */
    169 struct nios2_reg *nios2_regs = (struct nios2_reg *) nios2_builtin_regs;
    170 int nios2_num_regs = NIOS2_NUM_REGS;
    171 #undef NIOS2_NUM_REGS
    172 
    173 /* This is the opcode table used by the Nios II GNU as, disassembler
    174    and GDB.  */
    175 const struct nios2_opcode nios2_r1_opcodes[] =
    176 {
    177   /* { name, args, args_test, num_args, size, format,
    178        match, mask, pinfo, overflow } */
    179   {"add", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    180    MATCH_R1_ADD, MASK_R1_ADD, 0, no_overflow},
    181   {"addi", "t,s,i", "t,s,i,E", 3, 4, iw_i_type,
    182    MATCH_R1_ADDI, MASK_R1_ADDI, NIOS2_INSN_ADDI, signed_immed16_overflow},
    183   {"and", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    184    MATCH_R1_AND, MASK_R1_AND, 0, no_overflow},
    185   {"andhi", "t,s,u", "t,s,u,E", 3, 4, iw_i_type,
    186    MATCH_R1_ANDHI, MASK_R1_ANDHI, 0, unsigned_immed16_overflow},
    187   {"andi", "t,s,u", "t,s,u,E", 3, 4, iw_i_type,
    188    MATCH_R1_ANDI, MASK_R1_ANDI, NIOS2_INSN_ANDI, unsigned_immed16_overflow},
    189   {"beq", "s,t,o", "s,t,o,E", 3, 4, iw_i_type,
    190    MATCH_R1_BEQ, MASK_R1_BEQ, NIOS2_INSN_CBRANCH, branch_target_overflow},
    191   {"bge", "s,t,o", "s,t,o,E", 3, 4, iw_i_type,
    192    MATCH_R1_BGE, MASK_R1_BGE, NIOS2_INSN_CBRANCH, branch_target_overflow},
    193   {"bgeu", "s,t,o", "s,t,o,E", 3, 4, iw_i_type,
    194    MATCH_R1_BGEU, MASK_R1_BGEU, NIOS2_INSN_CBRANCH, branch_target_overflow},
    195   {"bgt", "s,t,o", "s,t,o,E", 3, 4, iw_i_type,
    196    MATCH_R1_BGT, MASK_R1_BGT,
    197    NIOS2_INSN_MACRO|NIOS2_INSN_CBRANCH, branch_target_overflow},
    198   {"bgtu", "s,t,o", "s,t,o,E", 3, 4, iw_i_type,
    199    MATCH_R1_BGTU, MASK_R1_BGTU,
    200    NIOS2_INSN_MACRO|NIOS2_INSN_CBRANCH, branch_target_overflow},
    201   {"ble", "s,t,o", "s,t,o,E", 3, 4, iw_i_type,
    202    MATCH_R1_BLE, MASK_R1_BLE,
    203    NIOS2_INSN_MACRO|NIOS2_INSN_CBRANCH, branch_target_overflow},
    204   {"bleu", "s,t,o", "s,t,o,E", 3, 4, iw_i_type,
    205    MATCH_R1_BLEU, MASK_R1_BLEU,
    206    NIOS2_INSN_MACRO|NIOS2_INSN_CBRANCH, branch_target_overflow},
    207   {"blt", "s,t,o", "s,t,o,E", 3, 4, iw_i_type,
    208    MATCH_R1_BLT, MASK_R1_BLT, NIOS2_INSN_CBRANCH, branch_target_overflow},
    209   {"bltu", "s,t,o", "s,t,o,E", 3, 4, iw_i_type,
    210    MATCH_R1_BLTU, MASK_R1_BLTU, NIOS2_INSN_CBRANCH, branch_target_overflow},
    211   {"bne", "s,t,o", "s,t,o,E", 3, 4, iw_i_type,
    212    MATCH_R1_BNE, MASK_R1_BNE, NIOS2_INSN_CBRANCH, branch_target_overflow},
    213   {"br", "o", "o,E", 1, 4, iw_i_type,
    214    MATCH_R1_BR, MASK_R1_BR, NIOS2_INSN_UBRANCH, branch_target_overflow},
    215   {"break", "j", "j,E", 1, 4, iw_r_type,
    216    MATCH_R1_BREAK, MASK_R1_BREAK, NIOS2_INSN_OPTARG, no_overflow},
    217   {"bret", "", "E", 0, 4, iw_r_type,
    218    MATCH_R1_BRET, MASK_R1_BRET, 0, no_overflow},
    219   {"call", "m", "m,E", 1, 4, iw_j_type,
    220    MATCH_R1_CALL, MASK_R1_CALL, NIOS2_INSN_CALL, call_target_overflow},
    221   {"callr", "s", "s,E", 1, 4, iw_r_type,
    222    MATCH_R1_CALLR, MASK_R1_CALLR, 0, no_overflow},
    223   {"cmpeq", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    224    MATCH_R1_CMPEQ, MASK_R1_CMPEQ, 0, no_overflow},
    225   {"cmpeqi", "t,s,i", "t,s,i,E", 3, 4, iw_i_type,
    226    MATCH_R1_CMPEQI, MASK_R1_CMPEQI, 0, signed_immed16_overflow},
    227   {"cmpge", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    228    MATCH_R1_CMPGE, MASK_R1_CMPGE, 0, no_overflow},
    229   {"cmpgei", "t,s,i", "t,s,i,E", 3, 4, iw_i_type,
    230    MATCH_R1_CMPGEI, MASK_R1_CMPGEI, 0, signed_immed16_overflow},
    231   {"cmpgeu", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    232    MATCH_R1_CMPGEU, MASK_R1_CMPGEU, 0, no_overflow},
    233   {"cmpgeui", "t,s,u", "t,s,u,E", 3, 4, iw_i_type,
    234    MATCH_R1_CMPGEUI, MASK_R1_CMPGEUI, 0, unsigned_immed16_overflow},
    235   {"cmpgt", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    236    MATCH_R1_CMPGT, MASK_R1_CMPGT, NIOS2_INSN_MACRO, no_overflow},
    237   {"cmpgti", "t,s,i", "t,s,i,E", 3, 4, iw_i_type,
    238    MATCH_R1_CMPGTI, MASK_R1_CMPGTI, NIOS2_INSN_MACRO, signed_immed16_overflow},
    239   {"cmpgtu", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    240    MATCH_R1_CMPGTU, MASK_R1_CMPGTU, NIOS2_INSN_MACRO, no_overflow},
    241   {"cmpgtui", "t,s,u", "t,s,u,E", 3, 4, iw_i_type,
    242    MATCH_R1_CMPGTUI, MASK_R1_CMPGTUI,
    243    NIOS2_INSN_MACRO, unsigned_immed16_overflow},
    244   {"cmple", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    245    MATCH_R1_CMPLE, MASK_R1_CMPLE, NIOS2_INSN_MACRO, no_overflow},
    246   {"cmplei", "t,s,i", "t,s,i,E", 3, 4, iw_i_type,
    247    MATCH_R1_CMPLEI, MASK_R1_CMPLEI, NIOS2_INSN_MACRO, signed_immed16_overflow},
    248   {"cmpleu", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    249    MATCH_R1_CMPLEU, MASK_R1_CMPLEU, NIOS2_INSN_MACRO, no_overflow},
    250   {"cmpleui", "t,s,u", "t,s,u,E", 3, 4, iw_i_type,
    251    MATCH_R1_CMPLEUI, MASK_R1_CMPLEUI,
    252    NIOS2_INSN_MACRO, unsigned_immed16_overflow},
    253   {"cmplt", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    254    MATCH_R1_CMPLT, MASK_R1_CMPLT, 0, no_overflow},
    255   {"cmplti", "t,s,i", "t,s,i,E", 3, 4, iw_i_type,
    256    MATCH_R1_CMPLTI, MASK_R1_CMPLTI, 0, signed_immed16_overflow},
    257   {"cmpltu", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    258    MATCH_R1_CMPLTU, MASK_R1_CMPLTU, 0, no_overflow},
    259   {"cmpltui", "t,s,u", "t,s,u,E", 3, 4, iw_i_type,
    260    MATCH_R1_CMPLTUI, MASK_R1_CMPLTUI, 0, unsigned_immed16_overflow},
    261   {"cmpne", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    262    MATCH_R1_CMPNE, MASK_R1_CMPNE, 0, no_overflow},
    263   {"cmpnei", "t,s,i", "t,s,i,E", 3, 4, iw_i_type,
    264    MATCH_R1_CMPNEI, MASK_R1_CMPNEI, 0, signed_immed16_overflow},
    265   {"custom", "l,d,s,t", "l,d,s,t,E", 4, 4, iw_custom_type,
    266    MATCH_R1_CUSTOM, MASK_R1_CUSTOM, 0, custom_opcode_overflow},
    267   {"div", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    268    MATCH_R1_DIV, MASK_R1_DIV, 0, no_overflow},
    269   {"divu", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    270    MATCH_R1_DIVU, MASK_R1_DIVU, 0, no_overflow},
    271   {"eret", "", "E", 0, 4, iw_r_type,
    272    MATCH_R1_ERET, MASK_R1_ERET, 0, no_overflow},
    273   {"flushd", "i(s)", "i(s),E", 2, 4, iw_i_type,
    274    MATCH_R1_FLUSHD, MASK_R1_FLUSHD, 0, address_offset_overflow},
    275   {"flushda", "i(s)", "i(s),E", 2, 4, iw_i_type,
    276    MATCH_R1_FLUSHDA, MASK_R1_FLUSHDA, 0, address_offset_overflow},
    277   {"flushi", "s", "s,E", 1, 4, iw_r_type,
    278    MATCH_R1_FLUSHI, MASK_R1_FLUSHI, 0, no_overflow},
    279   {"flushp", "", "E", 0, 4, iw_r_type,
    280    MATCH_R1_FLUSHP, MASK_R1_FLUSHP, 0, no_overflow},
    281   {"initd", "i(s)", "i(s),E", 2, 4, iw_i_type,
    282    MATCH_R1_INITD, MASK_R1_INITD, 0, address_offset_overflow},
    283   {"initda", "i(s)", "i(s),E", 2, 4, iw_i_type,
    284    MATCH_R1_INITDA, MASK_R1_INITDA, 0, address_offset_overflow},
    285   {"initi", "s", "s,E", 1, 4, iw_r_type,
    286    MATCH_R1_INITI, MASK_R1_INITI, 0, no_overflow},
    287   {"jmp", "s", "s,E", 1, 4, iw_r_type,
    288    MATCH_R1_JMP, MASK_R1_JMP, 0, no_overflow},
    289   {"jmpi", "m", "m,E", 1, 4, iw_j_type,
    290    MATCH_R1_JMPI, MASK_R1_JMPI, 0, call_target_overflow},
    291   {"ldb", "t,i(s)", "t,i(s),E", 3, 4, iw_i_type,
    292    MATCH_R1_LDB, MASK_R1_LDB, 0, address_offset_overflow},
    293   {"ldbio", "t,i(s)", "t,i(s),E", 3, 4, iw_i_type,
    294    MATCH_R1_LDBIO, MASK_R1_LDBIO, 0, address_offset_overflow},
    295   {"ldbu", "t,i(s)", "t,i(s),E", 3, 4, iw_i_type,
    296    MATCH_R1_LDBU, MASK_R1_LDBU, 0, address_offset_overflow},
    297   {"ldbuio", "t,i(s)", "t,i(s),E", 3, 4, iw_i_type,
    298    MATCH_R1_LDBUIO, MASK_R1_LDBUIO, 0, address_offset_overflow},
    299   {"ldh", "t,i(s)", "t,i(s),E", 3, 4, iw_i_type,
    300    MATCH_R1_LDH, MASK_R1_LDH, 0, address_offset_overflow},
    301   {"ldhio", "t,i(s)", "t,i(s),E", 3, 4, iw_i_type,
    302    MATCH_R1_LDHIO, MASK_R1_LDHIO, 0, address_offset_overflow},
    303   {"ldhu", "t,i(s)", "t,i(s),E", 3, 4, iw_i_type,
    304    MATCH_R1_LDHU, MASK_R1_LDHU, 0, address_offset_overflow},
    305   {"ldhuio", "t,i(s)", "t,i(s),E", 3, 4, iw_i_type,
    306    MATCH_R1_LDHUIO, MASK_R1_LDHUIO, 0, address_offset_overflow},
    307   {"ldw", "t,i(s)", "t,i(s),E", 3, 4, iw_i_type,
    308    MATCH_R1_LDW, MASK_R1_LDW, 0, address_offset_overflow},
    309   {"ldwio", "t,i(s)", "t,i(s),E", 3, 4, iw_i_type,
    310    MATCH_R1_LDWIO, MASK_R1_LDWIO, 0, address_offset_overflow},
    311   {"mov", "d,s", "d,s,E", 2, 4, iw_r_type,
    312    MATCH_R1_MOV, MASK_R1_MOV, NIOS2_INSN_MACRO_MOV, no_overflow},
    313   {"movhi", "t,u", "t,u,E", 2, 4, iw_i_type,
    314    MATCH_R1_MOVHI, MASK_R1_MOVHI,
    315    NIOS2_INSN_MACRO_MOVI, unsigned_immed16_overflow},
    316   {"movi", "t,i", "t,i,E", 2, 4, iw_i_type,
    317    MATCH_R1_MOVI, MASK_R1_MOVI, NIOS2_INSN_MACRO_MOVI, signed_immed16_overflow},
    318   {"movia", "t,o", "t,o,E", 2, 4, iw_i_type,
    319    MATCH_R1_ORHI, MASK_R1_ORHI, NIOS2_INSN_MACRO_MOVIA, no_overflow},
    320   {"movui", "t,u", "t,u,E", 2, 4, iw_i_type,
    321    MATCH_R1_MOVUI, MASK_R1_MOVUI,
    322    NIOS2_INSN_MACRO_MOVI, unsigned_immed16_overflow},
    323   {"mul", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    324    MATCH_R1_MUL, MASK_R1_MUL, 0, no_overflow},
    325   {"muli", "t,s,i", "t,s,i,E", 3, 4, iw_i_type,
    326    MATCH_R1_MULI, MASK_R1_MULI, 0, signed_immed16_overflow},
    327   {"mulxss", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    328    MATCH_R1_MULXSS, MASK_R1_MULXSS, 0, no_overflow},
    329   {"mulxsu", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    330    MATCH_R1_MULXSU, MASK_R1_MULXSU, 0, no_overflow},
    331   {"mulxuu", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    332    MATCH_R1_MULXUU, MASK_R1_MULXUU, 0, no_overflow},
    333   {"nextpc", "d", "d,E", 1, 4, iw_r_type,
    334    MATCH_R1_NEXTPC, MASK_R1_NEXTPC, 0, no_overflow},
    335   {"nop", "", "E", 0, 4, iw_r_type,
    336    MATCH_R1_NOP, MASK_R1_NOP, NIOS2_INSN_MACRO_MOV, no_overflow},
    337   {"nor", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    338    MATCH_R1_NOR, MASK_R1_NOR, 0, no_overflow},
    339   {"or", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    340    MATCH_R1_OR, MASK_R1_OR, 0, no_overflow},
    341   {"orhi", "t,s,u", "t,s,u,E", 3, 4, iw_i_type,
    342    MATCH_R1_ORHI, MASK_R1_ORHI, 0, unsigned_immed16_overflow},
    343   {"ori", "t,s,u", "t,s,u,E", 3, 4, iw_i_type,
    344    MATCH_R1_ORI, MASK_R1_ORI, NIOS2_INSN_ORI, unsigned_immed16_overflow},
    345   {"rdctl", "d,c", "d,c,E", 2, 4, iw_r_type,
    346    MATCH_R1_RDCTL, MASK_R1_RDCTL, 0, no_overflow},
    347   {"rdprs", "t,s,i", "t,s,i,E", 3, 4, iw_i_type,
    348    MATCH_R1_RDPRS, MASK_R1_RDPRS, 0, signed_immed16_overflow},
    349   {"ret", "", "E", 0, 4, iw_r_type,
    350    MATCH_R1_RET, MASK_R1_RET, 0, no_overflow},
    351   {"rol", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    352    MATCH_R1_ROL, MASK_R1_ROL, 0, no_overflow},
    353   {"roli", "d,s,j", "d,s,j,E", 3, 4, iw_r_type,
    354    MATCH_R1_ROLI, MASK_R1_ROLI, 0, unsigned_immed5_overflow},
    355   {"ror", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    356    MATCH_R1_ROR, MASK_R1_ROR, 0, no_overflow},
    357   {"sll", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    358    MATCH_R1_SLL, MASK_R1_SLL, 0, no_overflow},
    359   {"slli", "d,s,j", "d,s,j,E", 3, 4, iw_r_type,
    360    MATCH_R1_SLLI, MASK_R1_SLLI, 0, unsigned_immed5_overflow},
    361   {"sra", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    362    MATCH_R1_SRA, MASK_R1_SRA, 0, no_overflow},
    363   {"srai", "d,s,j", "d,s,j,E", 3, 4, iw_r_type,
    364    MATCH_R1_SRAI, MASK_R1_SRAI, 0, unsigned_immed5_overflow},
    365   {"srl", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    366    MATCH_R1_SRL, MASK_R1_SRL, 0, no_overflow},
    367   {"srli", "d,s,j", "d,s,j,E", 3, 4, iw_r_type,
    368    MATCH_R1_SRLI, MASK_R1_SRLI, 0, unsigned_immed5_overflow},
    369   {"stb", "t,i(s)", "t,i(s),E", 3, 4, iw_i_type,
    370    MATCH_R1_STB, MASK_R1_STB, 0, address_offset_overflow},
    371   {"stbio", "t,i(s)", "t,i(s),E", 3, 4, iw_i_type,
    372    MATCH_R1_STBIO, MASK_R1_STBIO, 0, address_offset_overflow},
    373   {"sth", "t,i(s)", "t,i(s),E", 3, 4, iw_i_type,
    374    MATCH_R1_STH, MASK_R1_STH, 0, address_offset_overflow},
    375   {"sthio", "t,i(s)", "t,i(s),E", 3, 4, iw_i_type,
    376    MATCH_R1_STHIO, MASK_R1_STHIO, 0, address_offset_overflow},
    377   {"stw", "t,i(s)", "t,i(s),E", 3, 4, iw_i_type,
    378    MATCH_R1_STW, MASK_R1_STW, 0, address_offset_overflow},
    379   {"stwio", "t,i(s)", "t,i(s),E", 3, 4, iw_i_type,
    380    MATCH_R1_STWIO, MASK_R1_STWIO, 0, address_offset_overflow},
    381   {"sub", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    382    MATCH_R1_SUB, MASK_R1_SUB, 0, no_overflow},
    383   {"subi", "t,s,i", "t,s,i,E", 3, 4, iw_i_type,
    384    MATCH_R1_SUBI, MASK_R1_SUBI, NIOS2_INSN_MACRO, signed_immed16_overflow},
    385   {"sync", "", "E", 0, 4, iw_r_type,
    386    MATCH_R1_SYNC, MASK_R1_SYNC, 0, no_overflow},
    387   {"trap", "j", "j,E", 1, 4, iw_r_type,
    388    MATCH_R1_TRAP, MASK_R1_TRAP, NIOS2_INSN_OPTARG, no_overflow},
    389   {"wrctl", "c,s", "c,s,E", 2, 4, iw_r_type,
    390    MATCH_R1_WRCTL, MASK_R1_WRCTL, 0, no_overflow},
    391   {"wrprs", "d,s", "d,s,E", 2, 4, iw_r_type,
    392    MATCH_R1_WRPRS, MASK_R1_WRPRS, 0, no_overflow},
    393   {"xor", "d,s,t", "d,s,t,E", 3, 4, iw_r_type,
    394    MATCH_R1_XOR, MASK_R1_XOR, 0, no_overflow},
    395   {"xorhi", "t,s,u", "t,s,u,E", 3, 4, iw_i_type,
    396    MATCH_R1_XORHI, MASK_R1_XORHI, 0, unsigned_immed16_overflow},
    397   {"xori", "t,s,u", "t,s,u,E", 3, 4, iw_i_type,
    398    MATCH_R1_XORI, MASK_R1_XORI, NIOS2_INSN_XORI, unsigned_immed16_overflow}
    399 };
    400 
    401 #define NIOS2_NUM_OPCODES \
    402        ((sizeof nios2_r1_opcodes) / (sizeof (nios2_r1_opcodes[0])))
    403 const int nios2_num_r1_opcodes = NIOS2_NUM_OPCODES;
    404 
    405 struct nios2_opcode *nios2_opcodes = (struct nios2_opcode *) nios2_r1_opcodes;
    406 int nios2_num_opcodes = NIOS2_NUM_OPCODES;
    407 #undef NIOS2_NUM_OPCODES
    408