1/* Altera Nios II opcode list.
2   Copyright (C) 2012-2017 Free Software Foundation, Inc.
3   Contributed by Nigel Gray (ngray@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
29const 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 | REG_3BIT | REG_LDWM},
34  {"r3", 3, REG_NORMAL | REG_3BIT | REG_LDWM},
35  {"r4", 4, REG_NORMAL | REG_3BIT | REG_LDWM},
36  {"r5", 5, REG_NORMAL | REG_3BIT | REG_LDWM},
37  {"r6", 6, REG_NORMAL | REG_3BIT | REG_LDWM},
38  {"r7", 7, REG_NORMAL | REG_3BIT | REG_LDWM},
39  {"r8", 8, REG_NORMAL | REG_LDWM},
40  {"r9", 9, REG_NORMAL | REG_LDWM},
41  {"r10", 10, REG_NORMAL | REG_LDWM},
42  {"r11", 11, REG_NORMAL | REG_LDWM},
43  {"r12", 12, REG_NORMAL | REG_LDWM},
44  {"r13", 13, REG_NORMAL | REG_LDWM},
45  {"r14", 14, REG_NORMAL | REG_LDWM},
46  {"r15", 15, REG_NORMAL | REG_LDWM},
47  {"r16", 16, REG_NORMAL | REG_3BIT | REG_LDWM | REG_POP},
48  {"r17", 17, REG_NORMAL | REG_3BIT | REG_LDWM | REG_POP},
49  {"r18", 18, REG_NORMAL | REG_LDWM | REG_POP},
50  {"r19", 19, REG_NORMAL | REG_LDWM | REG_POP},
51  {"r20", 20, REG_NORMAL | REG_LDWM | REG_POP},
52  {"r21", 21, REG_NORMAL | REG_LDWM | REG_POP},
53  {"r22", 22, REG_NORMAL | REG_LDWM | REG_POP},
54  {"r23", 23, REG_NORMAL | REG_LDWM | REG_POP},
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 | REG_LDWM | REG_POP},	/* frame pointer */
60  {"ea", 29, REG_NORMAL},			/* exception return address */
61  {"sstatus", 30, REG_NORMAL},			/* saved processor status */
62  {"ra", 31, REG_NORMAL | REG_LDWM | REG_POP},	/* 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 | REG_LDWM | REG_POP},
72  {"r29", 29, REG_NORMAL},
73  {"r30", 30, REG_NORMAL},
74  {"ba", 30, REG_NORMAL},			/* breakpoint return address */
75  {"r31", 31, REG_NORMAL | REG_LDWM | REG_POP},
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])))
165const 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.  */
169struct nios2_reg *nios2_regs = (struct nios2_reg *) nios2_builtin_regs;
170int 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.  */
175const 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, 0, 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, 0, 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, 0, 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, 0, unsigned_immed16_overflow}
399};
400
401#define NIOS2_NUM_R1_OPCODES \
402       ((sizeof nios2_r1_opcodes) / (sizeof (nios2_r1_opcodes[0])))
403const int nios2_num_r1_opcodes = NIOS2_NUM_R1_OPCODES;
404
405
406const struct nios2_opcode nios2_r2_opcodes[] =
407{
408  /* { name, args, args_test, num_args, size, format,
409       match, mask, pinfo, overflow } */
410  {"add", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
411   MATCH_R2_ADD, MASK_R2_ADD, 0, no_overflow},
412  {"addi", "t,s,i", "t,s,i,E", 3, 4, iw_F2I16_type,
413   MATCH_R2_ADDI, MASK_R2_ADDI, 0, signed_immed16_overflow},
414  {"add.n", "D,S,T", "D,S,T,E", 3, 2, iw_T3X1_type,
415   MATCH_R2_ADD_N, MASK_R2_ADD_N, 0, no_overflow},
416  {"addi.n", "D,S,e", "D,S,e,E", 3, 2, iw_T2X1I3_type,
417   MATCH_R2_ADDI_N, MASK_R2_ADDI_N, 0, enumeration_overflow},
418  {"and", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
419   MATCH_R2_AND, MASK_R2_AND, 0, no_overflow},
420  {"andchi", "t,s,u", "t,s,u,E", 3, 4, iw_F2I16_type,
421   MATCH_R2_ANDCHI, MASK_R2_ANDCHI, 0, unsigned_immed16_overflow},
422  {"andci", "t,s,u", "t,s,u,E", 3, 4, iw_F2I16_type,
423   MATCH_R2_ANDCI, MASK_R2_ANDCI, 0, unsigned_immed16_overflow},
424  {"andhi", "t,s,u", "t,s,u,E", 3, 4, iw_F2I16_type,
425   MATCH_R2_ANDHI, MASK_R2_ANDHI, 0, unsigned_immed16_overflow},
426  {"andi", "t,s,u", "t,s,u,E", 3, 4, iw_F2I16_type,
427   MATCH_R2_ANDI, MASK_R2_ANDI, 0, unsigned_immed16_overflow},
428  {"andi.n", "T,S,g", "T,S,g,E", 3, 2, iw_T2I4_type,
429   MATCH_R2_ANDI_N, MASK_R2_ANDI_N, 0, enumeration_overflow},
430  {"and.n", "D,S,T", "D,S,T,E", 3, 2, iw_T2X3_type,
431   MATCH_R2_AND_N, MASK_R2_AND_N, 0, no_overflow},
432  {"beq", "s,t,o", "s,t,o,E", 3, 4, iw_F2I16_type,
433   MATCH_R2_BEQ, MASK_R2_BEQ, NIOS2_INSN_CBRANCH, branch_target_overflow},
434  {"beqz.n", "S,P", "S,P,E", 2, 2, iw_T1I7_type,
435   MATCH_R2_BEQZ_N, MASK_R2_BEQZ_N, NIOS2_INSN_CBRANCH, branch_target_overflow},
436  {"bge", "s,t,o", "s,t,o,E", 3, 4, iw_F2I16_type,
437   MATCH_R2_BGE, MASK_R2_BGE, NIOS2_INSN_CBRANCH, branch_target_overflow},
438  {"bgeu", "s,t,o", "s,t,o,E", 3, 4, iw_F2I16_type,
439   MATCH_R2_BGEU, MASK_R2_BGEU, NIOS2_INSN_CBRANCH, branch_target_overflow},
440  {"bgt", "s,t,o", "s,t,o,E", 3, 4, iw_F2I16_type,
441   MATCH_R2_BGT, MASK_R2_BGT,
442   NIOS2_INSN_MACRO|NIOS2_INSN_CBRANCH, branch_target_overflow},
443  {"bgtu", "s,t,o", "s,t,o,E", 3, 4, iw_F2I16_type,
444   MATCH_R2_BGTU, MASK_R2_BGTU,
445   NIOS2_INSN_MACRO|NIOS2_INSN_CBRANCH, branch_target_overflow},
446  {"ble", "s,t,o", "s,t,o,E", 3, 4, iw_F2I16_type,
447   MATCH_R2_BLE, MASK_R2_BLE,
448   NIOS2_INSN_MACRO|NIOS2_INSN_CBRANCH, branch_target_overflow},
449  {"bleu", "s,t,o", "s,t,o,E", 3, 4, iw_F2I16_type,
450   MATCH_R2_BLEU, MASK_R2_BLEU,
451   NIOS2_INSN_MACRO|NIOS2_INSN_CBRANCH, branch_target_overflow},
452  {"blt", "s,t,o", "s,t,o,E", 3, 4, iw_F2I16_type,
453   MATCH_R2_BLT, MASK_R2_BLT, NIOS2_INSN_CBRANCH, branch_target_overflow},
454  {"bltu", "s,t,o", "s,t,o,E", 3, 4, iw_F2I16_type,
455   MATCH_R2_BLTU, MASK_R2_BLTU, NIOS2_INSN_CBRANCH, branch_target_overflow},
456  {"bne", "s,t,o", "s,t,o,E", 3, 4, iw_F2I16_type,
457   MATCH_R2_BNE, MASK_R2_BNE, NIOS2_INSN_CBRANCH, branch_target_overflow},
458  {"bnez.n", "S,P", "S,P,E", 2, 2, iw_T1I7_type,
459   MATCH_R2_BNEZ_N, MASK_R2_BNEZ_N, NIOS2_INSN_CBRANCH, branch_target_overflow},
460  {"br", "o", "o,E", 1, 4, iw_F2I16_type,
461   MATCH_R2_BR, MASK_R2_BR, NIOS2_INSN_UBRANCH, branch_target_overflow},
462  {"break", "j", "j,E", 1, 4, iw_F3X6L5_type,
463   MATCH_R2_BREAK, MASK_R2_BREAK, NIOS2_INSN_OPTARG, no_overflow},
464  {"break.n", "j", "j,E", 1, 2, iw_X2L5_type,
465   MATCH_R2_BREAK_N, MASK_R2_BREAK_N, NIOS2_INSN_OPTARG, no_overflow},
466  {"bret", "", "E", 0, 4, iw_F3X6_type,
467   MATCH_R2_BRET, MASK_R2_BRET, 0, no_overflow},
468  {"br.n", "O", "O,E", 1, 2, iw_I10_type,
469   MATCH_R2_BR_N, MASK_R2_BR_N, NIOS2_INSN_UBRANCH, branch_target_overflow},
470  {"call", "m", "m,E", 1, 4, iw_L26_type,
471   MATCH_R2_CALL, MASK_R2_CALL, NIOS2_INSN_CALL, call_target_overflow},
472  {"callr", "s", "s,E", 1, 4, iw_F3X6_type,
473   MATCH_R2_CALLR, MASK_R2_CALLR, 0, no_overflow},
474  {"callr.n", "s", "s,E", 1, 2, iw_F1X1_type,
475   MATCH_R2_CALLR_N, MASK_R2_CALLR_N, 0, no_overflow},
476  {"cmpeq", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
477   MATCH_R2_CMPEQ, MASK_R2_CMPEQ, 0, no_overflow},
478  {"cmpeqi", "t,s,i", "t,s,i,E", 3, 4, iw_F2I16_type,
479   MATCH_R2_CMPEQI, MASK_R2_CMPEQI, 0, signed_immed16_overflow},
480  {"cmpge", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
481   MATCH_R2_CMPGE, MASK_R2_CMPGE, 0, no_overflow},
482  {"cmpgei", "t,s,i", "t,s,i,E", 3, 4, iw_F2I16_type,
483   MATCH_R2_CMPGEI, MASK_R2_CMPGEI, 0, signed_immed16_overflow},
484  {"cmpgeu", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
485   MATCH_R2_CMPGEU, MASK_R2_CMPGEU, 0, no_overflow},
486  {"cmpgeui", "t,s,u", "t,s,u,E", 3, 4, iw_F2I16_type,
487   MATCH_R2_CMPGEUI, MASK_R2_CMPGEUI, 0, unsigned_immed16_overflow},
488  {"cmpgt", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
489   MATCH_R2_CMPGT, MASK_R2_CMPGT, NIOS2_INSN_MACRO, no_overflow},
490  {"cmpgti", "t,s,i", "t,s,i,E", 3, 4, iw_F2I16_type,
491   MATCH_R2_CMPGTI, MASK_R2_CMPGTI, NIOS2_INSN_MACRO, signed_immed16_overflow},
492  {"cmpgtu", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
493   MATCH_R2_CMPGTU, MASK_R2_CMPGTU, NIOS2_INSN_MACRO, no_overflow},
494  {"cmpgtui", "t,s,u", "t,s,u,E", 3, 4, iw_F2I16_type,
495   MATCH_R2_CMPGTUI, MASK_R2_CMPGTUI,
496   NIOS2_INSN_MACRO, unsigned_immed16_overflow},
497  {"cmple", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
498   MATCH_R2_CMPLE, MASK_R2_CMPLE, NIOS2_INSN_MACRO, no_overflow},
499  {"cmplei", "t,s,i", "t,s,i,E", 3, 4, iw_F2I16_type,
500   MATCH_R2_CMPLEI, MASK_R2_CMPLEI, NIOS2_INSN_MACRO, signed_immed16_overflow},
501  {"cmpleu", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
502   MATCH_R2_CMPLEU, MASK_R2_CMPLEU, NIOS2_INSN_MACRO, no_overflow},
503  {"cmpleui", "t,s,u", "t,s,u,E", 3, 4, iw_F2I16_type,
504   MATCH_R2_CMPLEUI, MASK_R2_CMPLEUI,
505   NIOS2_INSN_MACRO, unsigned_immed16_overflow},
506  {"cmplt", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
507   MATCH_R2_CMPLT, MASK_R2_CMPLT, 0, no_overflow},
508  {"cmplti", "t,s,i", "t,s,i,E", 3, 4, iw_F2I16_type,
509   MATCH_R2_CMPLTI, MASK_R2_CMPLTI, 0, signed_immed16_overflow},
510  {"cmpltu", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
511   MATCH_R2_CMPLTU, MASK_R2_CMPLTU, 0, no_overflow},
512  {"cmpltui", "t,s,u", "t,s,u,E", 3, 4, iw_F2I16_type,
513   MATCH_R2_CMPLTUI, MASK_R2_CMPLTUI, 0, unsigned_immed16_overflow},
514  {"cmpne", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
515   MATCH_R2_CMPNE, MASK_R2_CMPNE, 0, no_overflow},
516  {"cmpnei", "t,s,i", "t,s,i,E", 3, 4, iw_F2I16_type,
517   MATCH_R2_CMPNEI, MASK_R2_CMPNEI, 0, signed_immed16_overflow},
518  {"custom", "l,d,s,t", "l,d,s,t,E", 4, 4, iw_F3X8_type,
519   MATCH_R2_CUSTOM, MASK_R2_CUSTOM, 0, custom_opcode_overflow},
520  {"div", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
521   MATCH_R2_DIV, MASK_R2_DIV, 0, no_overflow},
522  {"divu", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
523   MATCH_R2_DIVU, MASK_R2_DIVU, 0, no_overflow},
524  {"eni", "j", "j,E", 1, 4, iw_F3X6L5_type,
525   MATCH_R2_ENI, MASK_R2_ENI, NIOS2_INSN_OPTARG, no_overflow},
526  {"eret", "", "E", 0, 4, iw_F3X6_type,
527   MATCH_R2_ERET, MASK_R2_ERET, 0, no_overflow},
528  {"extract", "t,s,j,k", "t,s,j,k,E", 4, 4, iw_F2X6L10_type,
529   MATCH_R2_EXTRACT, MASK_R2_EXTRACT, 0, no_overflow},
530  {"flushd", "I(s)", "I(s),E", 2, 4, iw_F1X4I12_type,
531   MATCH_R2_FLUSHD, MASK_R2_FLUSHD, 0, address_offset_overflow},
532  {"flushda", "I(s)", "I(s),E", 2, 4, iw_F1X4I12_type,
533   MATCH_R2_FLUSHDA, MASK_R2_FLUSHDA, 0, address_offset_overflow},
534  {"flushi", "s", "s,E", 1, 4, iw_F3X6_type,
535   MATCH_R2_FLUSHI, MASK_R2_FLUSHI, 0, no_overflow},
536  {"flushp", "", "E", 0, 4, iw_F3X6_type,
537   MATCH_R2_FLUSHP, MASK_R2_FLUSHP, 0, no_overflow},
538  {"initd", "I(s)", "I(s),E", 2, 4, iw_F1X4I12_type,
539   MATCH_R2_INITD, MASK_R2_INITD, 0, address_offset_overflow},
540  {"initda", "I(s)", "I(s),E", 2, 4, iw_F1X4I12_type,
541   MATCH_R2_INITDA, MASK_R2_INITDA, 0, address_offset_overflow},
542  {"initi", "s", "s,E", 1, 4, iw_F3X6_type,
543   MATCH_R2_INITI, MASK_R2_INITI, 0, no_overflow},
544  {"insert", "t,s,j,k", "t,s,j,k,E", 4, 4, iw_F2X6L10_type,
545   MATCH_R2_INSERT, MASK_R2_INSERT, 0, no_overflow},
546  {"jmp", "s", "s,E", 1, 4, iw_F3X6_type,
547   MATCH_R2_JMP, MASK_R2_JMP, 0, no_overflow},
548  {"jmpi", "m", "m,E", 1, 4, iw_L26_type,
549   MATCH_R2_JMPI, MASK_R2_JMPI, 0, call_target_overflow},
550  {"jmpr.n", "s", "s,E", 1, 2, iw_F1X1_type,
551   MATCH_R2_JMPR_N, MASK_R2_JMPR_N, 0, no_overflow},
552  {"ldb", "t,i(s)", "t,i(s),E", 3, 4, iw_F2I16_type,
553   MATCH_R2_LDB, MASK_R2_LDB, 0, address_offset_overflow},
554  {"ldbio", "t,I(s)", "t,I(s),E", 3, 4, iw_F2X4I12_type,
555   MATCH_R2_LDBIO, MASK_R2_LDBIO, 0, signed_immed12_overflow},
556  {"ldbu", "t,i(s)", "t,i(s),E", 3, 4, iw_F2I16_type,
557   MATCH_R2_LDBU, MASK_R2_LDBU, 0, address_offset_overflow},
558  {"ldbuio", "t,I(s)", "t,I(s),E", 3, 4, iw_F2X4I12_type,
559   MATCH_R2_LDBUIO, MASK_R2_LDBUIO, 0, signed_immed12_overflow},
560  {"ldbu.n", "T,Y(S)", "T,Y(S),E", 3, 2, iw_T2I4_type,
561   MATCH_R2_LDBU_N, MASK_R2_LDBU_N, 0, address_offset_overflow},
562  {"ldex", "d,(s)", "d,(s),E", 2, 4, iw_F3X6_type,
563   MATCH_R2_LDEX, MASK_R2_LDEX, 0, no_overflow},
564  {"ldh", "t,i(s)", "t,i(s),E", 3, 4, iw_F2I16_type,
565   MATCH_R2_LDH, MASK_R2_LDH, 0, address_offset_overflow},
566  {"ldhio", "t,I(s)", "t,I(s),E", 3, 4, iw_F2X4I12_type,
567   MATCH_R2_LDHIO, MASK_R2_LDHIO, 0, signed_immed12_overflow},
568  {"ldhu", "t,i(s)", "t,i(s),E", 3, 4, iw_F2I16_type,
569   MATCH_R2_LDHU, MASK_R2_LDHU, 0, address_offset_overflow},
570  {"ldhuio", "t,I(s)", "t,I(s),E", 3, 4, iw_F2X4I12_type,
571   MATCH_R2_LDHUIO, MASK_R2_LDHUIO, 0, signed_immed12_overflow},
572  {"ldhu.n", "T,X(S)", "T,X(S),E", 3, 2, iw_T2I4_type,
573   MATCH_R2_LDHU_N, MASK_R2_LDHU_N, 0, address_offset_overflow},
574  {"ldsex", "d,(s)", "d,(s),E", 2, 4, iw_F3X6_type,
575   MATCH_R2_LDSEX, MASK_R2_LDSEX, 0, no_overflow},
576  {"ldw", "t,i(s)", "t,i(s),E", 3, 4, iw_F2I16_type,
577   MATCH_R2_LDW, MASK_R2_LDW, 0, address_offset_overflow},
578  {"ldwio", "t,I(s)", "t,I(s),E", 3, 4, iw_F2X4I12_type,
579   MATCH_R2_LDWIO, MASK_R2_LDWIO, 0, signed_immed12_overflow},
580  {"ldwm", "R,B", "R,B,E", 2, 4, iw_F1X4L17_type,
581   MATCH_R2_LDWM, MASK_R2_LDWM, 0, no_overflow},
582  {"ldw.n", "T,W(S)", "T,W(S),E", 3, 2, iw_T2I4_type,
583   MATCH_R2_LDW_N, MASK_R2_LDW_N, 0, address_offset_overflow},
584  {"ldwsp.n", "t,V(s)", "t,V(s),E", 3, 2, iw_F1I5_type,
585   MATCH_R2_LDWSP_N, MASK_R2_LDWSP_N, 0, address_offset_overflow},
586  {"merge", "t,s,j,k", "t,s,j,k,E", 4, 4, iw_F2X6L10_type,
587   MATCH_R2_MERGE, MASK_R2_MERGE, 0, no_overflow},
588  {"mov", "d,s", "d,s,E", 2, 4, iw_F3X6_type,
589   MATCH_R2_MOV, MASK_R2_MOV, NIOS2_INSN_MACRO_MOV, no_overflow},
590  {"mov.n", "d,s", "d,s,E", 2, 2, iw_F2_type,
591   MATCH_R2_MOV_N, MASK_R2_MOV_N, 0, no_overflow},
592  {"movi.n", "D,h", "D,h,E", 2, 2, iw_T1I7_type,
593   MATCH_R2_MOVI_N, MASK_R2_MOVI_N, 0, enumeration_overflow},
594  {"movhi", "t,u", "t,u,E", 2, 4, iw_F2I16_type,
595   MATCH_R2_MOVHI, MASK_R2_MOVHI,
596   NIOS2_INSN_MACRO_MOVI, unsigned_immed16_overflow},
597  {"movi", "t,i", "t,i,E", 2, 4, iw_F2I16_type,
598   MATCH_R2_MOVI, MASK_R2_MOVI, NIOS2_INSN_MACRO_MOVI, signed_immed16_overflow},
599  {"movia", "t,o", "t,o,E", 2, 4, iw_F2I16_type,
600   MATCH_R2_ORHI, MASK_R2_ORHI, NIOS2_INSN_MACRO_MOVIA, no_overflow},
601  {"movui", "t,u", "t,u,E", 2, 4, iw_F2I16_type,
602   MATCH_R2_MOVUI, MASK_R2_MOVUI,
603   NIOS2_INSN_MACRO_MOVI, unsigned_immed16_overflow},
604  {"mul", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
605   MATCH_R2_MUL, MASK_R2_MUL, 0, no_overflow},
606  {"muli", "t,s,i", "t,s,i,E", 3, 4, iw_F2I16_type,
607   MATCH_R2_MULI, MASK_R2_MULI, 0, signed_immed16_overflow},
608  {"mulxss", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
609   MATCH_R2_MULXSS, MASK_R2_MULXSS, 0, no_overflow},
610  {"mulxsu", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
611   MATCH_R2_MULXSU, MASK_R2_MULXSU, 0, no_overflow},
612  {"mulxuu", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
613   MATCH_R2_MULXUU, MASK_R2_MULXUU, 0, no_overflow},
614  /* The encoding of the neg.n operands is backwards, not
615     the interpretation -- the first operand is still the
616     destination and the second the source.  */
617  {"neg.n", "S,D", "S,D,E", 2, 2, iw_T2X3_type,
618   MATCH_R2_NEG_N, MASK_R2_NEG_N, 0, no_overflow},
619  {"nextpc", "d", "d,E", 1, 4, iw_F3X6_type,
620   MATCH_R2_NEXTPC, MASK_R2_NEXTPC, 0, no_overflow},
621  {"nop", "", "E", 0, 4, iw_F3X6_type,
622   MATCH_R2_NOP, MASK_R2_NOP, NIOS2_INSN_MACRO_MOV, no_overflow},
623  {"nop.n", "", "E", 0, 2, iw_F2_type,
624   MATCH_R2_NOP_N, MASK_R2_NOP_N, NIOS2_INSN_MACRO_MOV, no_overflow},
625  {"nor", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
626   MATCH_R2_NOR, MASK_R2_NOR, 0, no_overflow},
627  {"not.n", "D,S", "D,S,E", 2, 2, iw_T2X3_type,
628   MATCH_R2_NOT_N, MASK_R2_NOT_N, 0, no_overflow},
629  {"or", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
630   MATCH_R2_OR, MASK_R2_OR, 0, no_overflow},
631  {"orhi", "t,s,u", "t,s,u,E", 3, 4, iw_F2I16_type,
632   MATCH_R2_ORHI, MASK_R2_ORHI, 0, unsigned_immed16_overflow},
633  {"ori", "t,s,u", "t,s,u,E", 3, 4, iw_F2I16_type,
634   MATCH_R2_ORI, MASK_R2_ORI, 0, unsigned_immed16_overflow},
635  {"or.n", "D,S,T", "D,S,T,E", 3, 2, iw_T2X3_type,
636   MATCH_R2_OR_N, MASK_R2_OR_N, 0, no_overflow},
637  {"pop.n", "R,W", "R,W,E", 2, 2, iw_L5I4X1_type,
638   MATCH_R2_POP_N, MASK_R2_POP_N, NIOS2_INSN_OPTARG, no_overflow},
639  {"push.n", "R,W", "R,W,E", 2, 2, iw_L5I4X1_type,
640   MATCH_R2_PUSH_N, MASK_R2_PUSH_N, NIOS2_INSN_OPTARG, no_overflow},
641  {"rdctl", "d,c", "d,c,E", 2, 4, iw_F3X6L5_type,
642   MATCH_R2_RDCTL, MASK_R2_RDCTL, 0, no_overflow},
643  {"rdprs", "t,s,I", "t,s,I,E", 3, 4, iw_F2X4I12_type,
644   MATCH_R2_RDPRS, MASK_R2_RDPRS, 0, signed_immed12_overflow},
645  {"ret", "", "E", 0, 4, iw_F3X6_type,
646   MATCH_R2_RET, MASK_R2_RET, 0, no_overflow},
647  {"ret.n", "", "E", 0, 2, iw_X2L5_type,
648   MATCH_R2_RET_N, MASK_R2_RET_N, 0, no_overflow},
649  {"rol", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
650   MATCH_R2_ROL, MASK_R2_ROL, 0, no_overflow},
651  {"roli", "d,s,j", "d,s,j,E", 3, 4, iw_F3X6L5_type,
652   MATCH_R2_ROLI, MASK_R2_ROLI, 0, unsigned_immed5_overflow},
653  {"ror", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
654   MATCH_R2_ROR, MASK_R2_ROR, 0, no_overflow},
655  {"sll", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
656   MATCH_R2_SLL, MASK_R2_SLL, 0, no_overflow},
657  {"slli", "d,s,j", "d,s,j,E", 3, 4, iw_F3X6L5_type,
658   MATCH_R2_SLLI, MASK_R2_SLLI, 0, unsigned_immed5_overflow},
659  {"sll.n", "D,S,T", "D,S,T,E", 3, 2, iw_T2X3_type,
660   MATCH_R2_SLL_N, MASK_R2_SLL_N, 0, no_overflow},
661  {"slli.n", "D,S,f", "D,S,f,E", 3, 2, iw_T2X1L3_type,
662   MATCH_R2_SLLI_N, MASK_R2_SLLI_N, 0, enumeration_overflow},
663  {"spaddi.n", "D,U", "D,U,E", 2, 2, iw_T1I7_type,
664   MATCH_R2_SPADDI_N, MASK_R2_SPADDI_N, 0, address_offset_overflow},
665  {"spdeci.n", "U", "U,E", 1, 2, iw_X1I7_type,
666   MATCH_R2_SPDECI_N, MASK_R2_SPDECI_N, 0, address_offset_overflow},
667  {"spinci.n", "U", "U,E", 1, 2, iw_X1I7_type,
668   MATCH_R2_SPINCI_N, MASK_R2_SPINCI_N, 0, address_offset_overflow},
669  {"sra", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
670   MATCH_R2_SRA, MASK_R2_SRA, 0, no_overflow},
671  {"srai", "d,s,j", "d,s,j,E", 3, 4, iw_F3X6L5_type,
672   MATCH_R2_SRAI, MASK_R2_SRAI, 0, unsigned_immed5_overflow},
673  {"srl", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
674   MATCH_R2_SRL, MASK_R2_SRL, 0, no_overflow},
675  {"srli", "d,s,j", "d,s,j,E", 3, 4, iw_F3X6L5_type,
676   MATCH_R2_SRLI, MASK_R2_SRLI, 0, unsigned_immed5_overflow},
677  {"srl.n", "D,S,T", "D,S,T,E", 3, 2, iw_T2X3_type,
678   MATCH_R2_SRL_N, MASK_R2_SRL_N, 0, no_overflow},
679  {"srli.n", "D,S,f", "D,S,f,E", 3, 2, iw_T2X1L3_type,
680   MATCH_R2_SRLI_N, MASK_R2_SRLI_N, 0, enumeration_overflow},
681  {"stb", "t,i(s)", "t,i(s),E", 3, 4, iw_F2I16_type,
682   MATCH_R2_STB, MASK_R2_STB, 0, address_offset_overflow},
683  {"stbio", "t,I(s)", "t,I(s),E", 3, 4, iw_F2X4I12_type,
684   MATCH_R2_STBIO, MASK_R2_STBIO, 0, signed_immed12_overflow},
685  {"stb.n", "T,Y(S)", "T,Y(S),E", 3, 2, iw_T2I4_type,
686   MATCH_R2_STB_N, MASK_R2_STB_N, 0, address_offset_overflow},
687  {"stbz.n", "t,M(S)", "t,M(S),E", 3, 2, iw_T1X1I6_type,
688   MATCH_R2_STBZ_N, MASK_R2_STBZ_N, 0, address_offset_overflow},
689  {"stex", "d,t,(s)", "d,t,(s),E", 3, 4, iw_F3X6_type,
690   MATCH_R2_STEX, MASK_R2_STEX, 0, no_overflow},
691  {"sth", "t,i(s)", "t,i(s),E", 3, 4, iw_F2I16_type,
692   MATCH_R2_STH, MASK_R2_STH, 0, address_offset_overflow},
693  {"sthio", "t,I(s)", "t,I(s),E", 3, 4, iw_F2X4I12_type,
694   MATCH_R2_STHIO, MASK_R2_STHIO, 0, signed_immed12_overflow},
695  {"sth.n", "T,X(S)", "T,X(S),E", 3, 2, iw_T2I4_type,
696   MATCH_R2_STH_N, MASK_R2_STH_N, 0, address_offset_overflow},
697  {"stsex", "d,t,(s)", "d,t,(s),E", 3, 4, iw_F3X6_type,
698   MATCH_R2_STSEX, MASK_R2_STSEX, 0, no_overflow},
699  {"stw", "t,i(s)", "t,i(s),E", 3, 4, iw_F2I16_type,
700   MATCH_R2_STW, MASK_R2_STW, 0, address_offset_overflow},
701  {"stwio", "t,I(s)", "t,I(s),E", 3, 4, iw_F2X4I12_type,
702   MATCH_R2_STWIO, MASK_R2_STWIO, 0, signed_immed12_overflow},
703  {"stwm", "R,B", "R,B,E", 2, 4, iw_F1X4L17_type,
704   MATCH_R2_STWM, MASK_R2_STWM, 0, no_overflow},
705  {"stwsp.n", "t,V(s)", "t,V(s),E", 3, 2, iw_F1I5_type,
706   MATCH_R2_STWSP_N, MASK_R2_STWSP_N, 0, address_offset_overflow},
707  {"stw.n", "T,W(S)", "T,W(S),E", 3, 2, iw_T2I4_type,
708   MATCH_R2_STW_N, MASK_R2_STW_N, 0, address_offset_overflow},
709  {"stwz.n", "t,N(S)", "t,N(S),E", 3, 2, iw_T1X1I6_type,
710   MATCH_R2_STWZ_N, MASK_R2_STWZ_N, 0, address_offset_overflow},
711  {"sub", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
712   MATCH_R2_SUB, MASK_R2_SUB, 0, no_overflow},
713  {"subi", "t,s,i", "t,s,i,E", 3, 4, iw_F2I16_type,
714   MATCH_R2_SUBI, MASK_R2_SUBI, NIOS2_INSN_MACRO, signed_immed16_overflow},
715  {"sub.n", "D,S,T", "D,S,T,E", 3, 2, iw_T3X1_type,
716   MATCH_R2_SUB_N, MASK_R2_SUB_N, 0, no_overflow},
717  {"subi.n", "D,S,e", "D,S,e,E", 3, 2, iw_T2X1I3_type,
718   MATCH_R2_SUBI_N, MASK_R2_SUBI_N, 0, enumeration_overflow},
719  {"sync", "", "E", 0, 4, iw_F3X6_type,
720   MATCH_R2_SYNC, MASK_R2_SYNC, 0, no_overflow},
721  {"trap", "j", "j,E", 1, 4, iw_F3X6L5_type,
722   MATCH_R2_TRAP, MASK_R2_TRAP, NIOS2_INSN_OPTARG, no_overflow},
723  {"trap.n", "j", "j,E", 1, 2, iw_X2L5_type,
724   MATCH_R2_TRAP_N, MASK_R2_TRAP_N, NIOS2_INSN_OPTARG, no_overflow},
725  {"wrctl", "c,s", "c,s,E", 2, 4, iw_F3X6L5_type,
726   MATCH_R2_WRCTL, MASK_R2_WRCTL, 0, no_overflow},
727  {"wrpie", "d,s", "d,s,E", 2, 4, iw_F3X6L5_type,
728   MATCH_R2_WRPIE, MASK_R2_WRPIE, 0, no_overflow},
729  {"wrprs", "d,s", "d,s,E", 2, 4, iw_F3X6_type,
730   MATCH_R2_WRPRS, MASK_R2_WRPRS, 0, no_overflow},
731  {"xor", "d,s,t", "d,s,t,E", 3, 4, iw_F3X6_type,
732   MATCH_R2_XOR, MASK_R2_XOR, 0, no_overflow},
733  {"xorhi", "t,s,u", "t,s,u,E", 3, 4, iw_F2I16_type,
734   MATCH_R2_XORHI, MASK_R2_XORHI, 0, unsigned_immed16_overflow},
735  {"xori", "t,s,u", "t,s,u,E", 3, 4, iw_F2I16_type,
736   MATCH_R2_XORI, MASK_R2_XORI, 0, unsigned_immed16_overflow},
737  {"xor.n", "D,S,T", "D,S,T,E", 3, 2, iw_T2X3_type,
738   MATCH_R2_XOR_N, MASK_R2_XOR_N, 0, no_overflow},
739};
740
741#define NIOS2_NUM_R2_OPCODES \
742       ((sizeof nios2_r2_opcodes) / (sizeof (nios2_r2_opcodes[0])))
743const int nios2_num_r2_opcodes = NIOS2_NUM_R2_OPCODES;
744
745/* Default to using the R1 instruction tables.  */
746struct nios2_opcode *nios2_opcodes = (struct nios2_opcode *) nios2_r1_opcodes;
747int nios2_num_opcodes = NIOS2_NUM_R1_OPCODES;
748#undef NIOS2_NUM_R1_OPCODES
749#undef NIOS2_NUM_R2_OPCODES
750
751/* Decodings for R2 asi.n (addi.n/subi.n) immediate values.  */
752unsigned int nios2_r2_asi_n_mappings[] =
753  {1, 2, 4, 8, 16, 32, 64, 128};
754const int nios2_num_r2_asi_n_mappings = 8;
755
756/* Decodings for R2 shi.n (slli.n/srli.n) immediate values.  */
757unsigned int nios2_r2_shi_n_mappings[] =
758  {1, 2, 3, 8, 12, 16, 24, 31};
759const int nios2_num_r2_shi_n_mappings = 8;
760
761/* Decodings for R2 andi.n immediate values.  */
762unsigned int nios2_r2_andi_n_mappings[] =
763  {1, 2, 3, 4, 8, 0xf, 0x10, 0x1f,
764   0x20, 0x3f, 0x7f, 0x80, 0xff, 0x7ff, 0xff00, 0xffff};
765const int nios2_num_r2_andi_n_mappings = 16;
766
767/* Decodings for R2 3-bit register fields.  */
768int nios2_r2_reg3_mappings[] =
769  {16, 17, 2, 3, 4, 5, 6, 7};
770const int nios2_num_r2_reg3_mappings = 8;
771
772/* Decodings for R2 push.n/pop.n REG_RANGE value list.  */
773unsigned long nios2_r2_reg_range_mappings[] = {
774  0x00010000,
775  0x00030000,
776  0x00070000,
777  0x000f0000,
778  0x001f0000,
779  0x003f0000,
780  0x007f0000,
781  0x00ff0000
782};
783const int nios2_num_r2_reg_range_mappings = 8;
784